CN114439231A - A construction method of a prefabricated building - Google Patents

Abstract

The invention provides a construction method of an assembly type building, and relates to the field of assembly type buildings. The method comprises the following steps: a plurality of superimposed slabs are connected, the superimposed slabs are connected with wall columns or beam plates, the superimposed slabs are connected with the wall columns or the beam plates, walls are connected, the wall columns are connected, and stairs are connected; it can strengthen the compactness of being connected between component and the component, reduces concreting and leaks thick liquid phenomenon, promotes the security and the wholeness of building.

Description

A construction method of a prefabricated building

technical field

The invention relates to the field of prefabricated buildings, in particular to a construction method of prefabricated buildings.

Background technique

Prefabricated building refers to the transfer of a large number of on-site operations in the traditional construction method to the factory, and the construction components and accessories such as floor slabs, wall panels, stairs, balconies, etc. The connection method is a building assembled and installed on site.

Prefabricated buildings mainly include prefabricated concrete structures, steel structures, modern wooden structures, etc. Because of the use of standardized design, factory production, prefabricated construction, information management, and intelligent applications, they are the representatives of modern industrial production methods.

In the prior art, there are still safety problems in the construction of prefabricated buildings, resulting in poor quality after the building is formed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a construction method of a prefabricated building, which can enhance the tightness of the connection between components, reduce the phenomenon of pouring concrete leakage, and improve the safety and integrity of the building.

Embodiments of the present invention are implemented as follows:

The embodiment of the present application provides a construction method of a prefabricated building, comprising the following steps:

S1, the connection between multiple laminated boards:

Ring-shaped steel bars are respectively provided at the ends of the multiple stacked plates close to each other, and the annular steel bars on the stacked boards are spliced two by two and then penetrate into the connecting steel bars, so that the multiple stacked boards are connected as a whole;

S2, the connection between the laminated plate and the wall column, wall or beam plate:

An anchor bar is arranged at one end of the plurality of laminated plates away from the annular reinforcing bar, and the anchor bar can extend into the wall column, the wall body and the beam plate;

S3, the connection of beam slab, wall column and top slab:

The beam plate has grooves, and the beam plate is equipped with annular steel bars. The beam steel bars are bound in the grooves of the beam plate. After the annular steel bars penetrate the connecting steel bars, they are connected to the laminated plate, and the bound beam steel bars are connected with the column steel bars on the wall column. , After the concrete is poured, the beam plate, the wall column and the laminated plate form a whole;

S4, the connection of the wall:

The lower part of the wall is provided with wall feet, and each wall foot has built-in bolts, and the stability and verticality of the wall can be adjusted by bolts when the ground is uneven;

The upper part and both sides of the wall are provided with ring-shaped steel bars. After the ring-shaped steel bars penetrate the steel bars, they are connected with the walls above and on both sides to form a whole;

S5, the connection of the wall column:

The end of the wall column is provided with a reserved column, which is used to bind the steel bars of the column on the construction site; the upper and lower sides of the wall column are provided with support through-wall holes for supporting the wall; It is used to block the reserved column at the end of the wall column after tying the steel bar;

The lower part of the wall column is provided with a wall foot, and each wall foot is provided with a bolt. When the ground is uneven, the stability and verticality of the wall column can be adjusted by the bolt;

A ring-shaped steel bar is arranged in the middle of the wall column, which is used to connect with the upper wall to form a whole;

At the reserved column of the wall column, there is a ring steel bar, and the steel bar is inserted into the ring steel bar, which is used for the lateral connection between the wall column and the wall;

S6, the connection of stairs:

One run of stairs is equipped with circular steel bars, and one end of the first run of stairs is equipped with circular steel bars for sliding stairs; both ends of one run of stairs are equipped with circular steel bars for ordinary stairs; reserved at the wall of the stairs To install the hole of the beam of the rest platform, extend the beam of the rest platform into the hole, install the end of the stairs in the beam of the rest platform and the beam of the stairs, and use the steel bar to penetrate into the circular steel bar in the stairs. , After the beams of the rest platform and the beams of the stairs are bound with steel bars, concrete is poured to form a whole.

In some embodiments of the present invention, in the above-mentioned step S1, when the size of the floor slab cannot be met after the combination of the multiple laminated slabs, an artificial support formwork is added.

In some embodiments of the present invention, in the above step S1, the laminated plate is provided with triangular reinforcing rib reinforcement.

In some embodiments of the present invention, in the above-mentioned step S4, the wall is provided with support through-wall holes, and the wall-penetrating holes are located on the upper and lower sides of the wall, and are respectively located at one-third of the height of the wall.

In some embodiments of the present invention, in the above step S4, formwork through-holes are respectively provided on both sides of the wall, and the formwork through-holes are at a distance from the wall edge. When the wall modulus is insufficient, artificial support formwork is added.

In some embodiments of the present invention, the above-mentioned walls or wall pillars all have height difference openings, and the height difference openings are used for placing floor slabs, so that the concrete does not flow out of the wall body or wall pillars during pouring, and manual support formwork is omitted.

In some embodiments of the present invention, in the above step S5, the wall column is a straight wall column, the wall column has two ends, both ends are provided with reserved columns, and the columns are bound at the reserved columns at both ends The steel bars and the column steel bars connect the upper and lower floors vertically, so as to complete the blockage of the column ends; the wall columns are provided with annular steel bars, the annular steel bars extend into the wall columns or the upper wall, and the annular steel bars are located between the two reserved columns.

In some embodiments of the present invention, in the above step S5, the wall column is a T-shaped wall column, the wall column has three ends, and the three ends are provided with reserved columns, and the column steel bars are bound at the reserved columns at the three ends. , the column steel bar connects the upper and lower floors vertically, so as to complete the blockage of the column end; the wall column is provided with a ring steel bar, the ring steel bar extends into the wall column or the upper wall, and the ring steel bar is located in the center between the three reserved columns. .

In some embodiments of the present invention, in the above step S5, the wall column is an L-shaped wall column, the wall column has two ends, both ends are provided with reserved columns, and the reserved columns are bound at both ends. Column steel bars, which connect the upper and lower floors vertically, so as to complete the sealing of the column ends. The wall columns are provided with ring steel bars, which extend into the wall columns or the upper wall, and the ring steel bars are located between the two reserved columns.

In some embodiments of the present invention, in the above step S5, the wall column is a Z-shaped wall column, the wall column has two ends, both ends are provided with reserved columns, and the reserved columns are bound at both ends. Column steel bars, which connect the upper and lower floors vertically, so as to complete the sealing of the column ends. The wall columns are provided with ring steel bars, which extend into the wall columns or the upper wall, and the ring steel bars are located between the two reserved columns.

Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

In the present invention, the connection method of the annular steel bars makes the components better form a whole and increases the safety performance of the building. Wall anchor bolts can reduce the construction impact caused by uneven floor concrete pouring, facilitate the adjustment of the verticality of the wall or wall column, and facilitate construction. The reserved column at the end of the wall column increases the strength of the building and enhances the safety of the building. The method enhances the tightness of the connection between the components and reduces the phenomenon of pouring concrete slurry leakage.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of an overall embodiment of the present invention;

2 is a schematic diagram of a laminated board according to an embodiment of the present invention;

3 is a schematic diagram of a beam plate according to an embodiment of the present invention;

4 is a schematic diagram of a wall according to an embodiment of the present invention;

Fig. 5 is the schematic diagram of the anchor bolt according to the embodiment of the present invention;

6 is a schematic diagram of a one-word wall column according to an embodiment of the present invention;

7 is a schematic diagram of a T-shaped wall column according to an embodiment of the present invention;

8 is a schematic diagram of an L-shaped wall column according to an embodiment of the present invention;

9 is a schematic diagram of two short-leg wall columns according to an embodiment of the present invention;

10 is a schematic diagram of a Z-shaped wall column according to an embodiment of the present invention;

11 is a schematic diagram of a staircase according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a height difference port according to an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, which is only for the convenience of describing the present invention and simplifying the description, and It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the appearance of the terms "first", "second", "third", etc. is only used to distinguish the description, and should not be construed as indicating or implying relative importance.

Furthermore, the appearance of the terms "horizontal", "vertical", "overhanging" etc. does not imply that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the embodiments of the present invention, if the term "plurality" appears, it means at least two.

In the description of the embodiments of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example

Referring to Figures 1-12, embodiments of the present invention are shown.

The embodiment of the present application provides a construction method of a prefabricated building, comprising the following steps:

S1, the connection between multiple laminated panels, the laminated panels are used for floor slabs, such as the ground of the second floor and the roof of the first floor, which are the horizontal components of the floor, see Figure 2 for details:

Ring-shaped steel bars are respectively provided at the ends of the multiple stacked plates close to each other, and the annular steel bars on the stacked boards are spliced two by two and then penetrate into the connecting steel bars, so that the multiple stacked boards are connected as a whole;

The annular reinforcement of the laminated board is used to connect multiple laminated boards to each other. For some building designs with large bays (room width) and depth (room length), the construction process of transporting and hoisting the laminated boards separately is more complicated. , so it is necessary to combine multiple laminated boards before transportation and hoisting.

In this embodiment, the splicing seam between the laminated plates is sealed with construction glue, and the laminated plates are provided with triangular reinforcing rib steel bars.

When the size of the floor slab cannot be met after the combination of multiple laminated slabs, artificial support formwork shall be added.

S2, the connection between the laminated plate and the wall column, wall or beam plate, the beam plate is used for the floor beam, see Figure 2 for details:

An anchor bar is arranged at one end of the laminated plate away from the annular reinforcing bar, and the anchor bar can extend into the wall column, the wall body and the beam plate;

S3, the connection of beam slab, wall column and top slab:

The beam plate has grooves, and the beam plate is equipped with annular steel bars. The beam steel bars are bound in the grooves of the beam plate. After the annular steel bars penetrate the connecting steel bars, they are connected to the laminated plate, and the bound beam steel bars are connected with the column steel bars on the wall column. , After the concrete is poured, the beam plate, the wall column and the laminated plate form a whole;

S4, the connection of the wall:

The lower part of the wall is provided with wall feet, and each wall foot has built-in bolts, and the stability and verticality of the wall can be adjusted by bolts when the ground is uneven;

During the construction, the poured concrete of the floor slab cannot be guaranteed to be flat, so the construction of the upper vertical wall column brings the problem of easy tilting of the vertical wall and makes the wall unstable. In the prior art, it is often necessary to insert pads to make the wall stable and vertical, but the thickness of the pads may not be consistent with the thickness to be inserted, which increases the probability of danger and difficulty in construction. Therefore, the wall corner bolt of the present invention can make the wall stable and vertical because the height of the bolt can be adjusted freely.

The upper and both sides of the wall are provided with annular steel bars. After the annular steel bars penetrate into the steel bars, they are connected with the walls above and on both sides to form a whole; as shown in Figure 4, the wall is provided with support through-wall holes, which are respectively It is located on the upper and lower sides of the wall, and is located at one-third of the height of the wall, and the wall must be provided with diagonal braces at the supporting hole to stabilize the wall. As shown in Figure 4, there are formwork through-holes on both sides of the wall, and the formwork through-holes have a distance from the wall edge. When the wall modulus (size) is insufficient, artificial support formwork is added.

S5, the connection of the wall column:

The end of the wall column is provided with a reserved column, which is used to bind the steel bars of the column on the construction site; the upper and lower sides of the wall column are provided with support through-wall holes for supporting the wall; It is used to block the reserved column at the end of the wall column after tying the steel bar;

As shown in Figure 5, the lower part of the wall column is provided with a wall foot, and each wall foot is provided with a bolt. When the ground is uneven, the stability and verticality of the wall column can be adjusted by the bolt;

A ring-shaped steel bar is arranged in the middle of the wall column, which is used to connect with the upper wall to form a whole;

At the reserved column of the wall column, there is a ring-shaped steel bar, and the steel bar is inserted into the ring-shaped steel bar for the lateral connection between the wall column and the wall.

Although the ordinary wall has ring steel bars to connect the upper and lower floors, construction joints will occur when the concrete condenses and shrinks, and the part above the ring steel bars is plain concrete, which creates weak parts and weakens the strength and rigidity of the building. It can only be used in parts with less stress, and the lack of wall columns makes up for the shortcomings of ordinary walls.

Since there is a process of condensation and shrinkage after the concrete is poured, construction gaps are generated, which cannot be well combined with the wall. In this embodiment, the steel bars are inserted into the annular steel bars, and the column steel bars are bound at the reserved column positions, so that the wall body and the wall columns are well connected together. In this way, the poured concrete can also be well combined, so that the formed The overall building is safer.

The same is true for beam slabs and laminated slabs. Due to the arrangement of annular steel bars, the post-cast concrete can also be integrated with the wall to make the building safer.

As shown in Figure 12, the wall or wall column has a height difference opening, and the height difference opening is used to place the floor slab (ie the laminated plate and the concrete poured on the laminated plate), so that the concrete does not flow out of the wall or wall column during pouring , eliminating the need for manual support templates. It should be noted that the height difference port is mainly used for the outer wall or the outer wall column. The wall is divided into outer wall and inner wall, and the wall column is also divided into outer wall column and inner wall column. External walls/columns are the walls/columns around the building, and internal walls/columns are the walls/columns inside the building.

In addition, the height difference port can also be used for the wall of the stairwell.

S6, the connection of the stairs, see Figure 11:

One run of stairs is equipped with circular steel bars, and one end of one run of stairs is equipped with circular steel bars for sliding stairs; both ends of one run of stairs are equipped with circular steel bars for ordinary stairs; reserved at the wall of the stairs To install the hole of the beam of the rest platform, extend the beam of the rest platform into the hole, install the end of the stairs in the beam of the rest platform and the beam of the stairs, and use the steel bar to penetrate into the circular steel bar in the stairs. , After the beams of the rest platform and the beams of the stairs are bound with steel bars, concrete is poured to form a whole.

Walls and wall columns are the vertical components of the floor. Walls and wall columns can be made in various forms such as one-word, T-shaped, L-shaped, and Z-shaped according to needs.

Various forms are exemplified below:

As shown in Figure 6, in the above step S5, the wall column is a straight wall column, the wall column has two ends, both ends are provided with reserved columns, and the column steel bars are bound at the reserved columns at both ends, and the columns The steel bars connect the upper and lower floors vertically to complete the blocking of the column ends; the wall columns are provided with annular steel bars, the annular steel bars extend into the wall columns or the upper wall, and the annular steel bars are located between the two reserved columns.

As shown in FIG. 7, in some embodiments of the present invention, in the above step S5, the wall column is a T-shaped wall column, the wall column has three ends, and the three ends are provided with reserved columns. The column reinforcement is tied at the column, and the column reinforcement is vertically connected to the upper and lower floors to complete the blockage of the column end; the wall column is provided with annular reinforcement, which extends into the wall column or the upper wall, and the annular reinforcement is located in the three reserved Center position between columns.

As shown in Figures 8 and 9, in some embodiments of the present invention, in the above step S5, the wall column is an L-shaped wall column, the wall column has two ends, and both ends are provided with reserved columns. The column steel bars are bound at the reserved columns at both ends, and the column steel bars are vertically connected to the upper and lower floors to complete the blockage of the column ends. The wall columns are provided with ring steel bars, which extend into the wall columns or the upper wall, and the ring steel bars are located in the wall column. between the two reserved columns.

As shown in FIG. 10 , in some embodiments of the present invention, in the above step S5, the wall column is a Z-shaped wall column, the wall column has two ends, and both ends are provided with reserved columns, and the two ends are provided with reserved columns. The column steel bars are bound at the reserved columns at the top, and the column steel bars are vertically connected to the upper and lower floors to complete the sealing of the column ends. The wall columns are provided with ring steel bars, which extend into the wall columns or the upper wall, and the ring steel bars are located in the two reserved between columns.

It should be noted that the burial of the embedded pipe fittings is added in the laminated board, the wall column and the wall according to the design and actual needs.

To sum up, the embodiments of the present invention provide a construction method for a prefabricated building, which at least has the following beneficial effects:

In the present invention, the connection method of the annular steel bars makes the components better form a whole and increases the safety performance of the building. Wall anchor bolts can reduce the construction impact caused by uneven floor concrete pouring, facilitate the adjustment of the verticality of the wall or wall column, and facilitate construction. The reserved column at the end of the wall column increases the strength of the building and enhances the safety of the building. The method enhances the tightness of the connection between the components and reduces the phenomenon of pouring concrete slurry leakage.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

It will be apparent to those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Accordingly, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the application is to be defined by the appended claims rather than the foregoing description, which is therefore intended to fall within the scope of the claims. All changes that come within the meaning and scope of equivalents to are included in this application. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (10)

1. a construction method of prefabricated building, is characterized in that, comprises the steps: S1, the connection between multiple laminated boards: Ring-shaped steel bars are respectively provided at the ends of the multiple stacked plates close to each other, and the annular steel bars on the stacked boards are spliced two by two and then penetrate into the connecting steel bars, so that the multiple stacked boards are connected as a whole; S2, the connection between the laminated plate and the wall column, wall or beam plate: An anchor bar is arranged at one end of the laminated plate away from the annular reinforcing bar, and the anchor bar can extend into the wall column, the wall body and the beam plate; S3, the connection between the laminated plate and the wall column or beam plate: The beam plate has grooves, and the beam plate is equipped with annular steel bars. The beam steel bars are bound in the grooves of the beam plate. After the annular steel bars penetrate the connecting steel bars, they are connected to the laminated plate, and the bound beam steel bars are connected with the column steel bars on the wall column. , After the concrete is poured, the beam plate, the wall column and the laminated plate form a whole; S4, the connection of the wall: The lower part of the wall is provided with wall feet, and each wall foot has built-in bolts, and the stability and verticality of the wall can be adjusted by bolts when the ground is uneven; The upper part and both sides of the wall are provided with ring-shaped steel bars, and after the ring-shaped steel bars penetrate the steel bars, they are connected with the walls above and on both sides to form a whole; S5, the connection of the wall column: The end of the wall column is provided with a reserved column, which is used to bind the steel bars of the column on the construction site; the upper and lower sides of the wall column are provided with support through-wall holes for supporting the wall; It is used to block the reserved column at the end of the wall column after tying the steel bar; The lower part of the wall column is provided with a wall foot, and each wall foot is provided with a bolt. When the ground is uneven, the stability and verticality of the wall column can be adjusted by the bolt; A ring-shaped steel bar is arranged in the middle of the wall column, which is used to connect with the upper wall to form a whole; At the reserved column of the wall column, there is a ring steel bar, and the steel bar is inserted into the ring steel bar for the horizontal connection between the wall column and the wall; S6, the connection of stairs: One run of stairs is equipped with circular steel bars, and one end of one run of stairs is equipped with circular steel bars for sliding stairs; both ends of one run of stairs are equipped with circular steel bars for ordinary stairs; reserved at the wall of the stairs To install the hole of the beam of the rest platform, extend the beam of the rest platform into the hole, install the end of the stairs in the beam of the rest platform and the beam of the stairs, and use the steel bar to penetrate into the circular steel bar in the stairs. , After the beams of the rest platform and the beams of the stairs are bound with steel bars, concrete is poured to form a whole. 2 . The construction method of the prefabricated building according to claim 1 , wherein, in the step S1 , when the size of the floor slab is not satisfied after the combination of the multiple laminated slabs, an artificial support formwork is added. 3 . 3 . The construction method of the prefabricated building according to claim 1 , wherein, in the step S1 , the laminated plate is provided with triangular reinforcing rib steel bars. 4 . 4. The construction method of prefabricated building according to claim 1, is characterized in that, in described S4 step, the wall is provided with support through-wall holes, and the wall-through holes are respectively located on the upper and lower sides of the wall, and are respectively located at the upper and lower sides of the wall. one-third of the height of the wall. 5. The construction method of prefabricated building according to claim 4, is characterized in that, in described S4 step, wall body both sides are respectively provided with formwork through-holes, formwork through-holes and wall edge have distance, when wall When the body modulus is insufficient, add artificial support templates. 6. The construction method of prefabricated building according to claim 1, is characterized in that, wall body or wall column all have height difference mouth, and height difference mouth is used for placing floor slab, make concrete does not flow to wall body or wall when pouring Outside the column, the manual support formwork is omitted. 7. The construction method of prefabricated building according to claim 1, is characterized in that, in described S5 step, the wall column is a word wall column, and the wall column has two ends, and both ends are provided with pre- Retain the columns, bind the column steel bars at the reserved columns at both ends, and the column steel bars connect the upper and lower floors vertically to complete the blockage of the column ends; the wall columns are provided with annular steel bars, and the annular steel bars extend into the wall columns or the upper wall. The reinforcement is located between the two reserved columns. 8. the construction method of prefabricated building according to claim 1, is characterized in that, in described S5 step, wall column is T-shaped wall column, wall column has three ends, and three ends are all provided with reserved Column, the column steel bars are bound at the reserved columns at the three ends, and the column steel bars are vertically connected to the upper and lower floors to complete the blockage of the column ends; the wall columns are provided with annular steel bars, and the annular steel bars extend into the wall columns or the upper wall. The reinforcement is located in the center between the three reserved columns. 9. The construction method of prefabricated building according to claim 1, is characterized in that, in described S5 step, the wall column is L-shaped wall column, and the wall column has two ends, and both ends are provided with pre- Retain the column, bind the column steel bars at the reserved columns at both ends, and the column steel bars connect the upper and lower floors vertically to complete the blocking of the column ends. The wall columns are provided with annular steel bars, which extend into the wall columns or the upper wall. , the annular reinforcement is located between the two reserved columns. 10. The construction method of the prefabricated building according to claim 9, is characterized in that, in the described S5 step, the wall column is a Z-shaped wall column, and the wall column has two ends, and both ends are provided with a pre-set. Retain the column, bind the column steel bars at the reserved columns at both ends, and the column steel bars connect the upper and lower floors vertically to complete the blocking of the column ends. The wall columns are provided with annular steel bars, which extend into the wall columns or the upper wall. , the annular reinforcement is located between the two reserved columns.

Images