JP2012164251A - Structure display device of architectural structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure display device of an architectural structure facilitating understanding a relation between beams and a ceiling when displaying an appearance design and a structure, which are merged with each other, on a display screen.SOLUTION: A computer in which a design program is installed is operated to call positional data of appearance design elements of an architectural structure and positional data of a plurality of types of architectural structure members from a magnetic disk drive storing them and construct a virtual three-dimensional model of the architectural structure, and a two-dimensional diagram of the architectural structure, for example, a plan view of the first floor of a wooden building A, is produced on the basis of the selected appearance design elements and architectural structure members and displayed in a monitor. In this case, when height position data of a ceiling is changed, exposure amounts of beams 31a to 31c change, and thereby the display colors of the beams 31a to 31c change according to the exposure amounts on the monitor.

Description

  The present invention relates to a structure display device for a building that displays an image obtained by fusing an external design and a structure on a display screen.

In designing a wooden building, it is common to first design an outline appearance design of a building to be built, and to perform a structure design of a structure corresponding to the appearance design. The exterior design has a roof and walls (including windows and entrances) as viewed from the outside, and is partitioned into a predetermined size inside, so that it is a so-called “living room” where floors, ceilings, and water are placed. It is a three-dimensional model designed as a “house”. On the other hand, the structure is a three-dimensional model mainly composed of building structural members mainly contributing to the strength of the wooden building such as beams, columns, bracing, bearing walls, purlins, girders, bundles and rafters.
Conventionally, the external appearance design and the structural design of the structure are performed separately, and the user (owner) confirms the result of the design separately. For example, a three-dimensional model of an external design designed using CAD software is converted into a virtual three-dimensional image and displayed on the monitor as images of various viewpoints. It only shows the appearance design. The structure corresponding to the appearance design is also made to be visually recognized as an image of only the structure on the monitor using CAD software (in some cases, as an output drawing). In other words, since the external design is shown in order to make the user understand what kind of external appearance and living state it is, the idea is that it is not necessary to visually check it together with the structure.
Certainly, the structure is used to explain to the user information such as how strong the wooden building is and how safe it is, and it must be viewed in combination with the exterior design. It doesn't have to be. This is because the user can understand the strength of the building based only on the structure. In order to explain to the user what strength the structure has, a technique such as Patent Document 1 has been proposed. Patent Document 1 displays in an easy-to-understand manner what strength the building structural member will have in accordance with the stress value applied to the building structural member.

JP 2000-67103 A

However, in practice, it may be desirable to visually determine the state in which the appearance design and the structure are fused. For example, there is a case where it is desired to determine whether or not a beam protrudes downward from the ceiling. This is because there is a demand to the beam as the current eagle is visually or projecting what degree where since some design elements of one and at the same time an architectural structural member as more specifically image. However, even if the appearance design and the structure are separately displayed on the monitor, it is not immediately possible to know how far the beam protrudes from which position on the ceiling.
In addition, when it does not protrude, that is, when the ceiling is relatively below the beam, it can be seen that there is no fusion between the appearance design and the structure as to how much space there is between the ceiling and the beam. It is difficult. The presence / absence of a gap and the distance are necessary information when connecting or piping between them.
For this reason, there has been a demand for a method that makes it easy to understand the positional relationship between the ceiling and the beam while fusing the exterior design and the structure.
Further, a particular problem in the positional relationship between the ceiling and the beam is when the ceiling height is changed when the exterior design is slightly changed after the exterior design and the structure are designed once. This is because if the ceiling height is changed, the amount of the beam appearing under the ceiling changes in the relationship between the ceiling and the beam, or the amount of gap between the ceiling and the beam changes. In the past, the appearance design and the structure were not fused, and it was difficult to understand how the appearance design changed when there was a minor change in the appearance design.
The present invention has been made to solve the above problems, and its purpose is to make it easier to understand the relationship between the beam and the ceiling when the appearance design and the structure are fused and displayed on the display screen. An object of the present invention is to provide a structural display device for a building.

  In order to achieve the above object, according to the first aspect of the present invention, the first position data of each exterior design element of an arbitrary building and a plurality of types of building structural members serving as the building structure are provided. Storage means for storing each second position data, and the architecture in which the appearance design and the structure of the building are fused based on the first and second position data read from the storage means Create a virtual 3D model of the object, create a 2D diagram of the building based on the exterior design elements and building structural members selected from the virtual 3D model, and display the 2D diagram A two-dimensional diagram display means to be displayed on a screen; a position data change means for arbitrarily changing the first position data; and the position data change means to change the ceiling of the exterior design element. A beam whose display mode is changed based on the relationship between the changed first position data and the second position data of the beam of the building structural member when the position data of 1 is changed The gist is that the display changing means is provided.

In the configuration of the first aspect, the external appearance design and structure of the building are created by the virtual three-dimensional model / two-dimensional diagram creating means based on the first position data and the second position data read from the storage means. Create a virtual three-dimensional model of a building that fuses Further, a two-dimensional diagram of the building is created based on the appearance design element and the building structure member selected from the appearance design element and the building structure member. Then, a virtual three-dimensional model of a building or an image of a two-dimensional diagram is displayed on the display screen.
In such an image display, when the positional relationship between the ceiling of the exterior design elements and the beam of the building structural member is changed by changing the first position data by the position data changing unit, the beam display changing unit To change the display mode of the beam. That is, by changing the height of the ceiling, the display mode of the beam changes according to the positional relationship with the beam that changes relatively. For example, if the ceiling is raised, the beams that were initially hidden will appear below the ceiling. Also, if the ceiling is lowered, the beam that originally appeared will be hidden above the ceiling. Moreover, the space | interval of a ceiling and the beam arrange | positioned above the ceiling will spread as a ceiling becomes low. The positional relationship between such various beams and the ceiling is shown by changing the display mode.
As a result, with regard to the virtual 3D model of the fused building, if the design of the ceiling height position is changed, how much it will protrude downward from the ceiling surface of the beam, how it protrudes, and the ceiling and ceiling It is easy to understand the distance (gap amount) between the beam arranged on the upper side of the beam and the like.

Here, as the “storage means”, for example, a storage element such as a semiconductor memory as an internal storage device of a personal computer, an external storage device such as a magnetic disk (hard disk), a flexible disk, a CD-ROM, or a magneto-optical disk can be considered. .
“Position data” is the value obtained by integrating the cross-sectional shape of the exterior design element or building structural member, or if these are a rectangular parallelepiped or cube, it is calculated from the displacement in the vertical, horizontal, and height directions of the four corners from the reference position. Can be sought. Therefore, the position data can be considered as the shape data of the exterior design element or the building structural member as it is.
Examples of the “appearance design element” constituting the appearance design include a roof, a wall (including a window and an entrance opening), a floor, and the like in addition to the ceiling. Examples of the “building structural member” constituting the structure include columns, bracing, bearing walls, girders, rafters, bundles, purlins, and large draws in addition to beams.
“Changing the display mode of the beam” is assumed to change the color, shape, or pattern of the beam itself according to the position on the ceiling. Moreover, the change of the display mode is a concept including not only the beam itself but also a case where the display mode is changed by a note or a decorative description written together with the beam.
In addition, “based on the relationship between the first position data after the change and the second position data” means that the change in the position of the ceiling can be grasped numerically in relation to the position of the beam. A deviation amount (comparison value) between the first position data and the second position data, a value obtained by adding the first position data and the second position data, or the like can be used.
The “two-dimensional diagram” is a diagram that is two-dimensionally expressed by combining selected appearance design elements and structures. For example, the “floor layout” is a representative two-dimensional diagram. .

In addition, in the invention according to claim 2, in addition to the configuration of the invention according to claim 1, the external appearance design and structure in which the ceiling is not displayed when performing the display to change the display mode of the beam by the beam display changing unit. The gist is that it is displayed as a two-dimensional diagram in which the body is fused.
This is because the distance between the ceiling and the beam can be understood from the display mode of the beam, and rather, the floor plan can be easily understood by not displaying the ceiling.
Further, in the invention according to claim 3, in addition to the configuration of the invention according to claim 2, the two-dimensional diagram that does not display the ceiling is a plan view in which the beam is merged in a look-up state or a beam is merged in a look-down state. The gist is that it is a plan view.
These plan view of the beam looking up state or plan view of the beam looking down state is a diagram in which a typical appearance design and a structure that makes it easy to understand the floor plan are fused by not displaying the ceiling.

In addition, in the invention according to claim 4, in addition to the configuration of any one of claims 1 to 3, a plurality of display modes of the beam are prepared, and the display mode corresponding to the positional relationship between the ceiling and the beam The gist of this is to select.
That is, a plurality of beam display modes are prepared, and the same display mode is used in the case of a positional relationship in which a ceiling and a beam fall within a certain range. This allows grouping by position.
In addition to the configuration of any one of the first to fourth aspects, the gist of the invention according to the fifth aspect is that the display mode of the beam is coloring the beam itself.
The beam display mode is most easily understood because the beam itself (whole or part) is colored and the color is changed in accordance with the change in position.

  Moreover, in addition to the structure of the invention in any one of Claims 1-5 in invention of Claim 6, the intensity | strength of each said building structural member is calculated based on the data for intensity | strength calculation according to the attribute of each said building structural member A plurality of strength display modes for each building structural member with respect to the two-dimensional diagram of the building structural member, and a predetermined strength display mode based on the strength obtained by the strength calculating unit. A selection means for selecting, a strength display means for displaying the predetermined strength display mode selected by the selection unit on the display screen as a strength display mode of the building structural member on the two-dimensional diagram, and the second position data A remaining area calculating means for calculating a remaining area excluding a burning allowance area with respect to a cross-sectional area of the building structural member obtained based on the strength calculating means calculated by the remaining area calculating means Intensity is calculated by the intensity calculation means based on the surplus area, and when the first position data of the ceiling of the appearance design elements is changed by the position data change means, the exposure is performed downward from the ceiling. The gist of the invention is that when the value of the cross-sectional area of the exposed portion of the beam to be changed changes, the strength calculation means calculates the strength using the changed value.

In the invention according to claim 6, in addition to the action of any one of claims 1 to 5, on the two-dimensional diagram displayed on the display screen when it is assumed that the building structural member of the building burned by fire It can be visually observed on the display screen that the strength display mode of the building structural member changes as the strength changes.
For example, the building structure member has a different attribute due to a difference in the type such as a pillar or a beam, a difference in shape, arrangement position, and the like. Therefore, the strength calculation data of the building structural member differs depending on the individual building structural member. The intensity calculation data may be either a value that has been stored in the storage device in advance is read and used, or a newly input value is used. The strength calculation data includes position data, load data, and material data. Based on the intensity calculation data, the intensity calculation means calculates the intensity. A predetermined intensity display mode is selected by the intensity display unit from a plurality of prepared intensity display modes for the two-dimensional diagram image of the building structural member displayed on the display screen according to the strength.
For example, if the strength is high, the building structure member itself is expressed using a cold color such as blue for safety, and if the strength is low, a warm color such as red for danger is used. It is possible to express the building structural member itself. As the intensity display mode, various means such as a difference in line type and a difference in brightness can be taken in addition to colors.
In this invention, when it burns by a fire, when the intensity | strength display aspect of the building structural member on the two-dimensional diagram displayed on the display screen changes intensity | strength, it can visually observe that the aspect changes. That is, the remaining area excluding the burning allowance area is calculated with respect to the cross-sectional area of the building structure member obtained based on the shape data by the remaining area calculating means. Then, the intensity is calculated by the intensity calculating means based on the remaining area. In other words, the strength of the building structural member is displayed by calculating in a state excluding the portion assumed to be burned.
And when the value of the cross-sectional area of the exposed portion of the beam exposed downward from the ceiling is changed in the above calculation, the strength calculating means calculates the strength using the value of the changed cross-sectional area. I have to. That is, the strength is calculated according to the increase or decrease of the portion where the beam is exposed from the ceiling. As a result, a more accurate intensity calculation assuming a fire can be performed.
In addition, in the invention according to claim 7, in addition to the configuration of the invention according to claim 6, the burning allowance area can be selected from a plurality of burning allowance patterns prepared according to the exposed state of the building structural member. The gist. This simplifies the calculation of the burning allowance area.

  According to the inventions described in the above claims, when the appearance design and the structure are fused and displayed on the display screen, the beam position is changed according to the positional relationship between the ceiling and the beam when the position of the ceiling is changed. Since the display mode changes, it is possible to easily understand the positional relationship between the beam and the ceiling. Further, according to the inventions of claims 6 and 7, even when the projection amount of the beam exposed downward from the ceiling changes when examining the strength of the beam assuming a fire, the projection amount of the beam after the change is changed. Since the strength is calculated on the premise, it is possible to always examine the strength of the beam assuming an accurate fire.

The block diagram explaining the electrical constitution of the embodiment of the present invention. Explanatory drawing for demonstrating calculation of the space | interval of a beam and a ceiling. A dialog box screen displayed on the monitor that sets the relationship between the beam appearance amount and color. Explanatory drawing which sorts and demonstrates the burning allowance pattern of a pillar for every kind in embodiment. Explanatory drawing which classifies and explains the burning allowance pattern of a beam for every same kind in the same embodiment. Explanatory drawing explaining the calculation method of the burning allowance of a pillar in the same embodiment. The table which shows the relationship between a residual area and a stress value in the same embodiment. Explanatory drawing explaining the calculation method of the burning allowance of a beam in the same embodiment. The table which shows the relationship between a residual area and a stress value in the same embodiment. Explanatory drawing explaining the relationship between an intensity | strength and a color. The top view by which an external appearance design and a structure are united in the same embodiment, and an image is displayed on a monitor. The top view which united the beam visually observed in the state of looking up in FIG. 11, and displayed the image on the monitor. FIG. 12 is a plan view in which an image is displayed on a monitor by merging a base and a large pull that are viewed in a state of looking down in FIG. The perspective view from the arrow direction in FIG. Explanatory drawing explaining the intensity distribution state which considered the burning allowance in the top view in FIG. Screen of the dialog box displayed on the monitor when changing the appearance design. FIG. 13 is a plan view corresponding to FIG. 12, in which beams viewed in a look-up state when a change is made to lower the ceiling are fused and displayed on a monitor. The perspective view corresponding to FIG. 14 at the time of making a change which lowers | hangs a ceiling. Explanatory drawing explaining the intensity distribution state at the time of making the change which lowers | hangs a ceiling with respect to FIG.

The building structure display device of the present invention is embodied by, for example, a computer in which a building structure design program (hereinafter simply referred to as a design program) having a CAD function is installed. Hereinafter, description will be given based on the drawings.
As shown in FIG. 1, a computer 10 has a CPU (Central Processing Unit) 11 as first and second input means, intensity calculation means, and determination means. The CPU 11 includes a ROM (Read Only Memory) 12, A RAM (Random Access Memory) 13, a magnetic disk device 14, an input device 15, a mouse 16, a monitor 17 as display means, and a printer 18 are connected.
The ROM 12 has a program for controlling the operation of the entire processing apparatus, a database management program for consolidating and managing databases, and an OA processing program for managing functions applicable to a plurality of programs (for example, a Japanese input function) And printing functions) are stored in advance. In addition, the RAM 13 is a writable and rewritable storage unit that temporarily stores various data necessary for the calculation of the CPU 11. The magnetic disk device 14 has an appearance design design program for designing the appearance design, a structure design program for the structure, and the designed appearance design and the structure design of the structure. The display program to be displayed on the screen, the beam display program for displaying the beam in a predetermined color according to the positional relationship between the ceiling and the beam in the screen display on the plan view, and various data necessary for the operation of the calculation program are stored in advance. Yes. Also, a stress value calculation program for calculating a stress value based on load data and shape data, a burning allowance calculation program for calculating a cross-sectional area of the beam and the burning allowance area based on the shape data of the beam, etc., and operations of these calculation programs Various data necessary for the storage are stored in advance.
The magnetic disk device 14 stores CAD data position data created by the external design design program and the structural design program. The CPU 11 transfers the CAD data stored with the execution of the display program from the magnetic disk device 14 to the RAM 13.

The input device 15 gives various commands to the CPU 11 and inputs data of CAD data position data (including data correction). The input device 15 includes a numeric keypad 15a and an input key 15b. The numeric keypad 15a mainly inputs new data. The input key 15b executes the selected process or confirms the data contents. The mouse 16 is an auxiliary device of the input device 15, and the mouse cursor is moved onto an instruction box displayed on the display screen of the monitor 17, and a button switch is input (that is, GUI input is performed), similar to the input key 15b. Fulfills the function.
A desired program is selected by the input key 15b or the mouse 16, and a desired process is selected.
The monitor 17 displays an operation window corresponding to each program on the monitor screen as the display program is executed. The operator uses the numeric keypad 15a and the input key 15b (or the mouse 16) according to the instruction on the operation window to display a virtual three-dimensional model of the building in which the exterior design and the structure are fused on the monitor 17 from an arbitrary viewpoint. If necessary, change the appearance design (that is, design the appearance design). The printer 18 prints the image displayed on the display screen of the monitor 17 on recording paper.

The CPU 11 displays on the monitor 17 an image obtained by fusing two types of CAD data separately created by the external design design program and the structural design program read from the RAM 13. Since the CAD data of the structure is designed based on the appearance design, for example, the fusion state can be realized by applying the position data of a member (column or beam) having the structure to the corresponding position in the appearance design. Since CAD data is originally three-dimensional data, it is possible to display an image on a two-dimensional plane from any direction even in a fused state. As a display mode, the structure is almost buried in the appearance design. However, the appearance design is made translucent so that the structure can be seen through the appearance design, or only the appearance design or only the structure is seen. Such an image display is also possible.
Further, when the position data of each appearance design element and the data value of the position data of the building structure member are changed, the CPU 11 merges the appearance design and the structure constructed based on the changed data values. Are displayed on the monitor 17 as described above.
In addition, when the position data of the appearance design element is changed, the CPU 11 exposes a beam or a column having a portion exposed to the outside in an intersection with the appearance design element based on a command from the outside. The position data of the beam or column is changed so as to maintain the appearance of the part.

Further, the CPU 11 calculates a relative distance in the vertical direction between the ceiling data and the beam position data among the CAD data read from the RAM 13 by the beam display program. Then, the color of the beam image displayed on the monitor 17 in the plan view in the looking-up state or the plan view in the looking-down state is determined according to the relative interval.
As shown in FIG. 2, in this embodiment, the calculation reference position is the lower surface of the thickness C of the ceiling 33, and the distance D is the distance from the reference surface L1 to the lower end surface L2 of the beam in the longitudinal section direction. The interval D is positive when the lower end surface L2 is below the reference surface L1, and negative when the lower end surface L2 is above the reference surface L1 (or vice versa). Here, the plus side coincides with the beam appearance amount. Further, when the lower end face L2 of the beam exists within the thickness C of the ceiling 33, the CPU 11 determines that an error has occurred and displays a notification on the monitor 17 so as to change the numerical value.
FIG. 3 is a dialog box showing the relationship between the interval D and the color displayed in the setting mode. In this embodiment, ten types of beam colors are prepared, and it is possible to change the color of the interval D by appropriately inputting a numerical value from the default state. The CPU 11 calculates a distance D between the beams, and displays according to the color assigned to the beams. For example, if the lower end surface L2 of the beam arranged at a certain position is 273 mm in the downward plus direction from the reference plane L1 of the crossing relationship, the beam color is looked up in the plan view looking up or looking down. Is expressed by a display color corresponding to “300 or less”.

Further, the CPU 11 calculates the cross-sectional area and the burning allowance area for each beam and column based on the position data of the beam and the column among the CAD data read from the RAM 13 by the burning allowance calculation program, and further based on these. Calculate the remaining area. As shown in FIG. 4, in this embodiment, the pillar has 15 kinds of burn allowance patterns, and the beam has 6 kinds of burn allowance patterns as shown in FIG. Furthermore, in the present embodiment, two types of burn-in allowance thickness are set according to the combustion time. The CPU 11 calculates the burn allowance area based on the pattern selected for the beam or column and the selected burn allowance thickness. Then, the remaining area is calculated by subtracting the burning allowance area obtained from the cross-sectional area. In the present embodiment, calculation is performed as follows. In the pillar shown in FIG. 4, 15 kinds of burn allowance patterns are roughly divided into 6 kinds of A group to F group from the remaining area. As shown in FIG. 6, one side of the pillar is a, and the burn allowance thickness is p. ,
-Residual area of group A: A = a * a
-Residual area of group B: B = a * a-ap
-Residual area of group C: C = a * a-2ap
-Residual area of group D: D = a * a + p * p-2ap
-Residual area of group E: E = a * a + 2p * p-3ap
-Residual area of group F: F = a * a + 4p * p-4ap
It is represented by
As shown in FIG. 7, in the present embodiment, a table T1 in which the relationship between the A group to the F group and the corresponding calculation formula is sequentially stored in the addresses mn to mn + 5 in the magnetic disk device 14. ing. Under the control of the burning allowance calculation program, the CPU 11 calculates the remaining area by substituting the numerical data of the column side length and burning allowance obtained from the shape data based on the calculation formula of the address to which the selected burning allowance pattern belongs. I do. The obtained remaining area data is temporarily stored in the RAM 13 as one of the shape data.
In the beam shown in FIG. 5, when the back of the beam is a, the width is b, and the burning allowance thickness is p, as shown in FIG.
-Residual area of group G: G = a * b
-Residual area of group H: H = a * b-ap
-Residual area of group I: I = a * b-bp
-Residual area of group J: J = a * b + 2p * p-ap-bp
-Residual area of group K: K = a * b + 2p * p-2ap-bp
It is represented by
As for the beam, as shown in FIG. 9, a table T2 showing the relationship between five types of patterns and the corresponding calculation formulas is stored in the addresses of mm to mm + 4 inside the magnetic disk device 14, and the column The calculation is performed in the same way.

Further, the CPU 11 calls a stress value calculation program in the magnetic disk device 14 and calculates the stress value of each beam and column based on the position data and load data of the beam read from the RAM 13. At this time, if the remaining area data is set for the beam and the column, the stress value is calculated in consideration thereof. The calculation of the stress value of each building structural member is based on a known method disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-259462.
Further, the CPU 11 determines the color of the building structural member to be displayed on the monitor 17 according to the stress value (that is, according to the strength) under the control of the stress value calculation program. As shown in FIG.
In this embodiment, six colors are prepared, and in the default state, corresponding colors are set according to the stress value of any value of 0 to 1.5 for each building structural member. The greater the value, the greater the strength, and the smaller the value, the smaller the strength. The range of the stress value corresponding to the color can be changed by displaying a dialog box (not shown) and appropriately inputting a numerical value.

Next, an example of operation of the computer 10 having such a configuration and a display mode will be described. Here, it is assumed that CAD data of an external design and a three-dimensional model of a structure is already created for a certain wooden building A. CAD data may be created by the computer 10 or CAD data created by another computer may be taken in.
The operator can display an image in which the appearance design and the structure are fused on the monitor 17 by operating the input device 15 or the mouse 16 and selecting a predetermined display mode. FIG. 11 shows an example of a two-dimensional diagram obtained by fusing appearance design elements and building structural members based on a three-dimensional model of appearance design and structure.
This is a plan view of the first floor of a certain wooden building A, and only the pillars 30 are selected from the structure for the appearance design of the first floor portion and are displayed in a merged manner.
The operator can arbitrarily display other images using FIG. 11 as a reference of the plan view on the first floor.

For example, the operator can display a plan view (the ceiling is not displayed) displayed by merging the beams 31 that are looking up in FIG. 11 by selecting the look-up display mode. At this time, the beam 31 is entirely displayed in a color corresponding to the height from the ceiling and displayed as an image. Further, the operator can display a plan view that is displayed by merging the overdrawn state 32 and the base 34 in FIG. 11 as shown in FIG. 11 by selecting the look-down display mode.
In addition, the operator can display a virtual three-dimensional model in which the appearance design and the structure are fused from any position by selecting the appearance display mode. FIG. 14 is a display from the perspective direction from the arrow direction of FIG. The second room R2 on the back side is configured to have a lower ceiling height than the first room R1 on the front side with the atrium. The first beam 31a is installed in such a position as to partition the first room R1 from the second room R2. A second beam 31b that completely appears in the first room R1 is constructed to cross the first beam 31a. On the other hand, a third beam 31c parallel to the second beam 31b that partially appears from the ceiling 33 is installed in the second room R2.
Further, the operator can select an intensity display mode and display an intensity display in consideration of the burning allowance corresponding to the first floor plan view as shown in FIG. In the present embodiment, the strength display mode is such that the appearance design element is transparent and the structure is displayed only.

Here, it is assumed that the operator changes from the display mode to the input mode, further selects the appearance design data change mode in the input mode, and changes the height position data of the ceiling 33 on the monitor 17.
The operator first checks whether or not the beam or column is changed from a dialog box 35 capable of GUI input as shown in FIG. 16 displayed on the monitor 17 in the appearance design data change mode. If “Yes” is checked for “With beam and column dimension change”, the building structural member is exposed to the exterior of the building structural member when it intersects with the changed exterior design element. The position data of the building structural member is also changed synchronously so that the exposed portion is in the same exposed state as before the change. For example, in the appearance design before the change, when the beam is exposed 100 mm from the ceiling, if the ceiling is lowered 20 mm, the back of the beam is also enlarged 20 mm downward (this increases the strength of the structure). Conversely, if the ceiling is raised by 20 mm, the back of the beam is reduced by 20 mm upwards and becomes smaller (this reduces the strength of the structure).
On the other hand, when the beam and column are not changed (that is, when “No” is checked), the beam and column remain in the position data before the change even if the appearance design element is changed. In other words, changes in the appearance design elements do not affect beams and columns.

Here, a case where the beam and column are not changed (that is, “No” is checked) will be described. It is assumed that the operator inputs, for example, the ceiling 33 to be lowered 180 mm in the appearance design data change mode. As a result, the first beam 31a is initially set to 150 mm in the plus direction and the third beam 31c is set to 20 mm in the plus direction, but the first beam 31a is set to 30 mm in the minus direction and the third beam 31c is set to It is set to a position of 160 mm in the minus direction (both are positions from the ceiling lower surface of the beam lower surface). This eliminates the appearance of the beam in the second room R2 (appearance amount 0).
When the CAD data that has been changed in this way is displayed again on the monitor 17 in the display mode, the display of the state of FIG. 12 is a plan view in which, for example, the beam 31 that is looking up is merged as shown in FIG. The color is changed according to the relative position change of the position of the beam 31 from the ceiling and displayed on the screen. Further, in the display from the perspective direction of FIG. 18, the ceiling 33 is lowered from the state of FIG. 14, and the first beam 31 a and the third beam 31 c are completely hidden inside the ceiling 33.
Further, since the display amount has changed in this way, in the intensity display in consideration of the burning allowance in the intensity display mode, for example, the intensity of the first beam 31a and the third beam 31c is changed and displayed as shown in FIG. Will be. Here, since the amount of appearance of the first beam 31a and the third beam 31c is 0, the strength is improved as compared with that before the change (FIG. 15).

As described above, by configuring as in the above-described embodiment, the following effects are achieved.
(1) Because it can be confirmed on the monitor in a state where the exterior design and the structure are fused unlike the conventional case, understand the positional relationship when the exterior design elements and the building structural members cross each other. Can do. In particular, the positional relationship between the ceiling 33 and the beams 31a to 31c can be well understood.
(2) The beams 31a to 31c are convenient because the positional relationship in the plus direction or the minus direction from the ceiling 33 can be grasped by color. More specifically, in the case of a plus, the amount of appearance from the ceiling can be immediately recognized by the color according to the color. In addition, it is difficult to understand how much the beams 31a to 31c arranged above the ceiling that is not shown are spaced from the ceiling by simply fusing the exterior design and the structure. is there. However, even in the negative case, the distance between the ceiling and the lower surfaces of the beams 31a to 31c will be indicated in color, and it will be necessary to examine whether electricity can be routed to the top of the ceiling or piping can be passed, and the setup of piping work. Very meaningful.
(3) Minor changes, such as changing the ceiling height and wall thickness after design, are made relatively frequently. In the above-described embodiment, the exposure amount (appearance amount) of the beams 31a to 31c intersecting with the ceiling 33 is changed by changing the appearance design. However, the exposure amount is greatly changed by the change, and is displayed on the screen. Since the color is changed, it can be easily understood that the exposure amount has changed due to the color change.
(4) In the intensity display considering the burning allowance, the calculation is performed on the assumption that the exposure amount (appearance amount) of the beams 31a to 31c changed by always changing the height of the ceiling 33 is more accurate. It is possible to display the strength in consideration of the burning allowance.
(5) When changing the height of the ceiling 33 after the design, if the ceiling 33 and the beams 31a to 31c are interlaced, whether the current design should be given priority (that is, accompanied by changes in the beams and columns); Since it is possible to select whether the exposure amount (appearance amount) of the beams 31a to 31c can be changed without giving priority to the current design, an optimum design according to the situation is possible.

It should be noted that the present invention can be modified and embodied as follows.
As the display mode of the beams 31a to 31c, a pattern other than the above color may be used, and the number of colors used can be freely set. The numerical value of the band corresponding to the color can be changed as appropriate. Moreover, it may be displayed by a difference in line type or a difference in brightness from white to black, and a mark corresponding to the interval D may be arranged so as to overlap with the beams 31a to 31c in display.
In this embodiment, the reference position for calculating the distance D between the ceiling 33 and the beams 31a to 31c is the lower surface of the thickness C of the ceiling 33. However, the present invention is not limited to this, and the upper surface of the ceiling 33 is used as a reference or set to another position. It is also free to do. The same applies to the beams 31a to 31c.
In the above embodiment, the external appearance design and the structure are created as separate CAD data. However, when building the external appearance design, the structural body is also built at the same time while obtaining the CAD data. It may be. This is because even in this case, the appearance design and the structure are merged.
The CAD data of the appearance design and the structure may be created by another computer or the computer 10 that displays the CAD data.
In the above embodiment, the exposure amount of the beams 31a to 31c is changed by changing the height of the ceiling 33, and the display mode is changed. However, as an example of crossing with other exterior design elements and building structural members You may make it apply about a wall and a column, or a wall and a beam. That is, for example, the exposure amount of the column from the wall is changed with the movement of the wall in and out, and the display mode is changed according to the exposure amount of the column.

-The burning allowance pattern in the said embodiment is an example, and it is free to set another pattern.
-The color indicating intensity may be a pattern or number other than the above. The numerical value of the band corresponding to the color can be changed as appropriate. You may display by the difference in a line type, the difference in the brightness difference from white to black, and you may make it arrange | position the mark according to intensity | strength so that it may overlap with a structural member on a display.
In the above embodiment, the burning allowance is calculated only for beams and columns, but it is also free to perform for other building structural members.
In the above embodiment, two types of burn-in allowance thickness are set. However, more types of thickness (that is, finer combustion time) may be set. For example, an extremely short time interval, for example, a burnup thickness every 5 minutes may be set, and the intensity calculation result may be continuously displayed on the intensity distribution diagram 35. In this way, it is possible to visually simulate the intensity that changes with every fire and simulate over time.
Although the condition setting in the state where the intensity is inferior is adopted as the initial value when displaying the intensity distribution diagram 35, the initial value may be set under other conditions.
In the above embodiment, various data are transferred from the magnetic disk device 14 to the RAM 13. However, data may be transferred from another external storage device such as a flexible disk, a CD-ROM, a magneto-optical disk, or the like. Further, data may be transferred by data communication such as LAN (Local Area Network), WAN (Wide Area Network), or the Internet.
In the above embodiment, the various data transferred to the RAM 13 cannot rewrite data such as columns, beams, and lines that have a great influence on the building skeleton, and the load data on the floor and walls has an influence on the building skeleton. It was rewritable as no. That is, only a part of the data can be updated by the intensity display device. However, all of the various data may be rewritable, or vice versa.
-The kind of load and the kind of stress in the said embodiment are only examples. In the present embodiment, only the above is obtained as the most universal intensity determination condition, and the type may be further added or reduced.
・ Do not print. Therefore, a printer is not essential. In addition, when storing data, the storage means is not limited. For example, a magnetic disk device, a RAM, a flexible disk, a CD-ROM, a magneto-optical disk, and the like can be given as examples. In addition, the present invention can be freely modified and implemented without departing from the spirit of the present invention.
In addition, the present invention can be freely modified and implemented without departing from the spirit of the present invention.

Other technical ideas of the present invention that can be grasped from the above embodiments will be described as additional notes below.
(1) Provided with a selection means capable of selecting one of the following two when the position data of the appearance design element is changed.
A) Do not change the exposure amount of the building structural member that intersects the appearance design element set by default by synchronously changing the position data of the building structural member.
B) By changing the position data of the building structural member, the exposure amount of the building structural member intersecting with the appearance design element set by default is changed.
(2) Provide a selection means that can select one of the following two when the ceiling height position data is changed.
A) By changing the height of the back of the beam, the interval between the ceiling and the beam that intersects by default is made constant.
B) By changing the height of the back of the beam, the interval between the ceiling and the beam that intersects by default is changed.
(3) In A) in (2), change the beam appearance from the ceiling to the default appearance amount by changing the back of the beam.

  DESCRIPTION OF SYMBOLS 12 ... ROM as a memory | storage means, 13 ... RAM as a memory | storage means, 14 ... Magnetic disk apparatus as a memory | storage means, 17 ... Monitor as a two-dimensional diagram display means, Position data change means, A part of beam display change means CPU.

Claims (7)

Storage means for storing first position data of each of the exterior design elements of an arbitrary building and second position data of each of a plurality of types of building structural members to be the structure of the building;
Based on the first and second position data read from the storage means, a virtual three-dimensional model of the building in which the appearance design and structure of the building are fused is constructed, and the virtual three-dimensional A two-dimensional diagram display means for creating a two-dimensional diagram of the building based on the appearance design element and building structural member selected from a model, and displaying the two-dimensional diagram on a display screen;
Position data changing means for arbitrarily changing the first position data;
When the first position data of the ceiling of the appearance design elements is changed by the position data changing means, the first position data after the change and the second of the beams of the building structure member are changed. A structure display device for a building, comprising beam display changing means for changing the display mode of the beam based on the relationship with position data. 2. The display according to claim 1, wherein when the display that changes the display mode of the beam is performed by the beam display changing unit, the display is displayed as a two-dimensional diagram in which the appearance design that does not display the ceiling and the structure are fused. Structure display device of the building described. 3. The structural display of a building according to claim 2, wherein the two-dimensional diagram not displaying the ceiling is a plan view in which the beams are merged in a state of looking up or a plan view in which the beams are merged in a state of looking down. apparatus. A plurality of display modes of the beam are prepared, and a corresponding display mode is selected in accordance with a positional relationship between the ceiling and the beam. The building according to any one of claims 1 to 3, Structure display device. The structural display device for a building according to any one of claims 1 to 4, wherein the display mode of the beam is coloring of the beam itself. Strength calculating means for calculating the strength of each building structural member based on the strength calculation data according to the attribute of each building structural member;
A plurality of strength display modes are prepared for each building structure member for the two-dimensional diagram of the building structure member, and a selection unit that selects a predetermined strength display mode based on the strength obtained by the strength calculation unit;
Strength display means for displaying the predetermined strength display mode selected by the selection unit on the display screen as the strength display mode of the building structural member on the two-dimensional diagram;
A residual area calculating means for calculating a residual area excluding a burning allowance area with respect to a cross-sectional area of the building structure member acquired based on the second position data;
The intensity calculating means causes the intensity calculating means to calculate the intensity based on the remaining area calculated by the remaining area calculating means,
When the position data changing means changes the first position data of the ceiling among the appearance design elements, the value of the cross-sectional area of the exposed portion of the beam exposed downward from the ceiling changes. 6. The structural display device for a building structure according to claim 1, wherein the strength calculating means calculates the strength using the value after the change. 7. The structure display device for a building structure according to claim 6, wherein the burning allowance area can be selected from a plurality of burning allowance patterns prepared according to the exposed state of the building structural member.

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