JPH03172462A - Method for assembling column formwork and trolley for assembling column formwork - Google Patents

Abstract

PURPOSE:To reduce the manhour by installing one form material of a pillar form through the transport to an assembly position by using a dolly, installing the other form material similarly in opposed state, connecting both foam materials by a connecting fitting and tightening them by a clamp. CONSTITUTION:One form member 14 of a pillar form 23 is supported in erection state on the lower edge supporting part 16 of a dolly 1, and an extension/ contractible member is contracted by placing hands and legs on a handle 19 and a pedal 22, and the front surface supporting part 9 of the dolly 1 is turned rearward, and the form member 14 is transported in inclined state to an assembly position. At the assembly position, the front surface supporting part 9 is reconstructed, and the form member 14 is erected, and the supporting part 9 of the dolly 1 is reconstructed, and released from the dolly 1 by erecting the form member 14, and installed at the assembly position. The other form member 14 is installed similarly in opposed state, and both the members 14 and 14 are connected by a connecting fitting, and the peripheries are tightened by a clamp. Accordingly, transport and installation can be easily carried out through manual operations.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for assembling a driving form for a column and a cart for assembling a column form that is directly used for carrying out the method.

[Conventional technology]

The conventional method of assembling column formwork is, firstly, at the construction position of the column, a large number of plate-shaped frames made of timber plates and metal plates are combined and fixed to each other, and then the outer periphery of the plate-shaped frame members is assembled to resist concrete pressure. Second, how to arrange vertical and horizontal bars for
There has been a method of installing a company-use driving formwork by lifting it from above using a crane, or by lifting the driving formwork using a forklift.

[Problem to be solved by the invention]

However, the first method has the problem of requiring a large amount of man-hours on site to construct the columns, and the second method requires machinery to assemble the formwork. There was a problem that.

This invention has been made in view of the above-mentioned conventional problems, and aims to reduce the number of man-hours at a column construction site and to assemble a column formwork without using a machine.

[Means to solve the problem]

The method for assembling the column formwork is to use a cart that supports one of the formworks facing each other to form the cast formwork of the column, and the formwork is supported by this cart in an upright 4Je state, and the formwork of the cart is The support part is tilted backwards and the form is transported in an inclined state to the assembly position, and at the assembly position, the form support part of the trolley is restored to stand up the form, and the support by the cart is released and the form is installed at the assembly position. On the other hand, install the other mold material in the same manner as above to face the installed mold material, connect these two mold materials with a connecting tool that spans them, and fasten the circumferences of both facing mold materials with a clamp. This is the way to do it.

The clamp may be fastened while being supported by, for example, being engaged with the connector.

In addition, as a trolley directly used for carrying out the above assembly method,
It is preferable to use one having each of the following configurations (a) to (e).

(a) Base with front and rear wheels.

(b) A front support part that is tiltably supported and erected with respect to the base at the lower part, and supports one of the plurality of mold materials for configuring the driving formwork on the front surface.

(C) A narrow plate-shaped lower end support part that is located at the lower end of the front support part, extends in the left-right direction, and supports the profile from the lower end.

(d) A telescoping member that is angularly connected to both the upper part of the front support part and the rear part of the base part and that is provided with a telescoping mechanism in the middle.

(e) A handle provided above the telescoping mechanism on the telescoping portion for a person to extend and retract the telescoping member.

[Function] Since the form is supported on the front end of the cart in an upright state and removed from the cart, it is easy to attach and remove the form from the cart. On the other hand, when the form is transported, the form falls backwards and is in an inclined state. Since the center of gravity of the truck moves toward the center of the truck, the worker can transport it by pushing the truck by hand. After the two shapes are placed in the assembly position facing each other, the two shapes are inseparably connected by a connecting tool, and then clamped around them to counteract the internal pressure of the concrete.

The connector is a connector that protrudes from the surface of the shape material, and when the clamp is engaged with the upper surface of the connector, the position of the clamp is fixed.

The lower end of the trolley engages the plate-shaped lower end support portion with the lower side of the profile member in a state in which the front support portion is erected. At this time, it is preferable to slightly tilt the mold material to form a slight gap on the lower side of the mold material, and insert the plate-shaped lower end support portion into this space. When this plate-shaped lower end support part is inserted under the shape material,
While the front support portion of the truck is in an upright state along the profile, the telescopic member of the truck is in an extended state.

Here, by applying the worker's weight to the handle of the trolley, the telescopic member of the trolley contracts, and the front support section falls backward and tilts, and the profile is placed on top of the inclined front support section. I'll ride it. In this state, the center of gravity of the profile has moved from the front end of the cart toward the center, so the worker can easily move the cart.

When the column is in the construction position and the handle is raised to extend the telescopic member of the trolley, the front support returns from the inclined state to the upright state, and the shape material also returns to its position and is placed on the floor. Here, by pulling out the plate-shaped lower end support portion of the truck, the shape material is installed at its erected position. At this time, if the mold material is slightly tilted, a gap will be created between the mold material and the floor, making it easier to pull out the plate-shaped lower end support portion.

[Example] First, a cart 1 for assembling a column form will be described based on FIGS. 1 to 4.

In other words, 2 is the base of the trolley 1, which has a frame shape consisting of left and right bars 3 extending in the front-rear direction and a bar 4 extending in the width direction installed between these bars, and at the bottom of the rear end thereof. A rear wheel 5 consisting of a caster wheel is arranged and also 2.1; i'?
A front wheel 7 is rotatably supported at the front end of the ++ 2 via a shaft 6 passing through the tubular front end of the rods 4.

A bracket 8 is rotatably supported on the shaft 6, and a front support portion 9 is fixed to the bracket 8.
A front support portion 9 is tiltably supported by the base portion 2 via a bracket 8.

The front support part 9 consists of two vertical bars 11 whose lower ends are fixed to the bracket 8 and are arranged vertically, and a horizontal bar 12 installed between them, and a horizontal locking bar 13 in the middle. are fixed, and a vertical bar 11 and a horizontal bar 12 support one of the form members 14 that oppose each other and constitute the driving formwork of the column. At both ends of the locking rod 13, the ends of a heald 15 with a buckle, which is injected into a molded material 14, are fixed.

The shape material 14 is a shape material for constructing a cast formwork, and is made by mixing thermosetting melamine resin into a composition containing cement, particulate silica, and other additives, stirring it, and hardening it by the heat generated. Although it is made of a material, it goes without saying that it may be a cast formwork made of a known material.

A narrow plate-shaped lower end support part 16 is fixed to the front surface of the lower end of the vertical bar 11 constituting the front support part 9, and supports the profile 14 from the lower end. This lower end support part 16 is made of one flange part of an angle material, and a vertical bar 1 is attached to the other flange part.
It is fixed at 1.

Thus, the lower end support portion 16 extends in the left-right direction, and its dimensions in the front-back direction are small.

The upper ends of the left and right telescopic members 17 are pivotally attached to the upper part of the front support portion 9, and the lower ends of the two telescopic members 17 are individually pivotally attached to the left and right rear portions of the base 2. This telescopic member 1
A telescopic mechanism 18 is formed in the middle of 7. This telescopic mechanism 18 includes an upper shaft 17a forming the -F portion of the telescopic member 17.
The lower shaft 17b forming the lower part of the telescoping member 17 is slidably fitted into the nesting hole, but the telescoping mechanism 18 may have another structure as long as the telescoping member 17 is expandable. .

The front support part 9 can be tilted back and forth by the expansion and contraction of the expansion and contraction member 17, and depending on the amount of expansion and contraction of the expansion and contraction member 17,
It is designed to be able to tilt up to an angle of 15 degrees both forward and backward from the vertical position. After this, the second angle is determined by a not-illustrated strike mechanism of the telescopic member 17 (it is configured not to be tilted).

Telescopic mechanism 1 in each upper shaft 17a of both telescopic portions 17
A handle 19 is installed in the portion forming the 8. The handle 19 of this embodiment has a frame shape that is fixed between the upper shafts 17a and protrudes rearward, and is reinforced by a stay 21 between the middle of each upper shaft 17a, so that the entire handle 19 is connected to the upper shaft 17a. They form one body. In addition, the left and right telescopic members 17
A pedal 22 is installed and fixed at the lower end between each upper shaft 17a and protrudes rearward, and is also integral with the upper shaft 7a.

Next, a method of assembling a column form using the trolley 1 constructed in this way will be described.

In this embodiment, the column formwork 23 is a formwork for constructing a column having a rectangular planar cross section, and this column formwork 23 is constructed by opposing two mold members 14 each having a groove-shaped planar cross section. The procedure for installing the profile 14 at the column construction position using the trolley 1 will now be described.

First, the trolley 1 with the front support part 9 in a vertical position is brought close to the back of the profile 14 that is erected on the floor, and the front support part 9 of the carrier 1 is brought into contact with the back of the profile 14.

At this time, the lower end support portion 1 of the trolley 1 is attached to the lower end of the back surface of the profile 14.
1 until there is a space slightly larger than the thickness dimension of 6.
By slightly tilting 4, the lower end support portion 16 of the truck 1 can be easily inserted into the space. When the inclined profile 14 is restored, the lower end of the back surface of the profile I4 rests on the lower end support portion 1G of the truck I.

In this state, only the lower end of the rear surface of the entire lower end of the section 14 rests on the lower end support section 16, so the section section 14 is in a slightly inclined state, so the front support section 9 is tilted slightly forward. Then, the front support portion 9 comes into contact with the back surface of the profile 14.

Next...Tighten the bolt 15 around the mold A14 and mold material 1.
4 to the trolley 1, the worker puts his hand on the handle 19 and puts his foot on the pedal 22 to push them down. As a result, the telescoping mechanism 18 contracts and the telescoping member 1
7 is reduced and the upper shaft 17a is lowered, so that the front support portion 9 inclines rearward (as shown by the chain line in FIG. 2), and the profile 14 also inclines rearward together with this.

Due to the above-mentioned inclination of the front support part 9 and the profile 14, the center of gravity of the profile 14 moves toward the center of the profile 14, so in this state, the handle 19 is used to push or pull the trolley 1 to move it to the column construction position. At the column construction position, a reinforcing member 24 made of a steel frame, reinforcing bars, etc. is already arranged in the shape of a column.

The state in which it has been moved is the shape member 14 shown tilted in FIG.

After moving to the column construction position, contrary to the above, return the front support part 9 to a vertical state or a state slightly inclined to the front side of the frame, and place the lower part of the front end of the shape member 14 on the floor. , release the heald 15 and then move the trolley 1 backward. When returning the front support portion 9 as described above, the shape member 14 can be placed gently on the floor by placing the foot on the pedal 22 and applying the weight at iJ. In addition, since the lower end support portion 16 of the truck 1 has a short dimension in the front-rear direction, it is
4, and then pull it out again (the work becomes easier).

By the above-mentioned operation of reversing the truck I, the profile 14 is placed in a predetermined position.

Similarly, the other molded material 14 is also placed opposite to the molded material 14 that has already been placed, and both molded materials 14 are connected by a connector 25 made of an angle material.

As shown in FIG. 8, the connector 25 has two port holes 26, one of which is an elongated hole so that the distance between the two molded members 14 can be adjusted. An insert member (Nara 1-) 27 that supports a bolt 28 protruding from the surface is embedded in the shape material 14, and this bolt 28 is inserted into the hole 2.
6 and attach the connector 25, and then screw it onto the insert member (NAND) 27. 29 is a sealing material made of foamed synthetic resin, which is used to seal the concrete poured inside the column formwork 23.
After 1. is cured, it is removed and filled with 1” geological formation.

The connector 25 is installed so that one flange of the angle member faces upward, and the clamp 31 is supported on the upper surface of this flange. A plurality of clamps 31 are arranged surrounding both of the opposing shapes 14, and each clamp 31 is fixed with a fixture 32 such as a wedge, and the column formwork 14 is
3. It is designed to withstand the internal pressure of concrete placed inside. In FIG. 6, each of the upper and lower clamps 3
1 are arranged at the same spacing, but as shown in the column frame 23 on the left side of FIG. 5, the vertical spacing in the lower part where the internal pressure is high may be narrower, and the spacing in the upper part may be wider. Note that the sealing material 29 is
Although it is partially missing due to the connecting material 25, it is possible to observe the filling state of the internal concrete 1, the state of aggregate separation, etc. from here.

After the concrete poured inside the column formwork 23 has hardened, the clamp 31 and the connector 25 are removed, the bolt 28 screwed into the insert member (nut) 27 is removed, and the above-mentioned The sealing material 29 is also removed, and the surface is finished using filler or finishing material in its place.

In addition, in this embodiment, the column formwork 23 has a flat cross-sectional square shape, and as a result, the mold member 14 has a groove shape; however, the column formwork 23
If it has a circular or other flat cross section, the shape 14 is shaped to correspond to that shape, the front support part 9 and the lower end support part 16 of the truck 1 are shaped accordingly, and the connector 25 and the clamp 31 are shaped accordingly. The shape of should also correspond to this.

[Effects of the Invention] As explained above, according to the column form assembly method of the present invention, the form is supported on the front end of the truck in an upright state and removed from the truck, making it easy to attach and detach from the truck. on the other hand,
When transporting the moldings, the moldings fall backwards and are in an inclined state, so the center of gravity of the moldings moves toward the center of the trolley, allowing the worker to transport them by pushing the trolley by hand. Therefore, without using a powered conveyance machine such as a crane or a forklift, the material of the cast formwork can be easily transported manually and installed at a predetermined position.

Further, according to the trolley for assembling column formwork of the present invention, it is possible to easily assemble the formwork of the cast formwork by hand without using a powered conveyance machine such as a crane or forklift as described above. In addition to being able to be installed in a jail, the lower end support section on the underside of the front support section extends in the left-right direction, so it can be sufficiently supported across the width of the shape material, and the width of the lower end support section in the front-rear direction can be reduced. Because of its small size, it is easy to load the profile onto the trolley and install it from the trolley to the installation location.Also, during transportation, the front support part is tilted backwards due to the shrinkage of the telescopic member, and the center of gravity of the profile is moved toward the center of the trolley. Since it can be moved, transportation becomes easier.

[Brief explanation of the drawing]

Figure 1 is a front view of the front support part and lower end support part of the trolley;
The figure is a side view of the trolley, Figure 3 is a back view of the telescopic member and base of the trolley, Figure 4 is a plan view with the telescopic member of the trolley omitted, and Figure 5
The figure is an explanatory diagram of the column construction site, Figure 6 is a front view of the column formwork, Figure 7 is a cross-sectional plan view of Figure 6, Figure 8 is a front view of the connector, and Figure 9 is the same as Figure 8. FIG. 10 is a cross-sectional view taken along line IX--IX, and FIG. 10 is a cross-sectional view taken along line X--X in FIG. ■...Dolly, 2...Base, 5...Rear wheel, 7...
Front wheel, 9... Front support part, 14 Shape member, 16... Lower end support part, 17... Telescopic member, 18... Telescopic mechanism, 1
9... Handle, 22... Pedal, 23... Column formwork, 25... Connector, 29... Sealing material, 31...
clamp. 3rd figure 461-

Claims (3)

[Claims] (1) Use a truck that supports one of the shapes for composing the driving formwork of the column facing each other, and use this truck to support the said shape in an upright state, and then tilt the shape support part of the truck backwards. The profile is conveyed in an inclined state to the assembly position, and at the assembly position, the profile support part of the trolley is restored to stand the profile, and the support by the carrier is released to install the profile in the assembly position, while the other profile is placed in the assembly position. is installed opposite to the already installed shape material in the same manner as above, and the two shape materials are connected by a connecting tool that spans them, and the peripheries of the two opposed shape materials are fastened with a clamp. How to assemble column formwork. (2) The method for assembling a column form according to claim 1, characterized in that the clamps are fastened while being supported by the connectors. (3) (a) A base with wheels on the front and rear; (b) One of a plurality of shapes that are tiltably supported and erected with respect to the base at the lower part and constitute a driving formwork. (c) a narrow plate-shaped lower end support part that is located at the lower end of the front support part and extends in the left-right direction and supports the profile from the lower end; (d) the front support part (e) a telescopic member provided above the telescopic mechanism to allow a person to extend and retract the telescopic member; A trolley for assembling column formwork, characterized by having a handle for operation and the following.