JPH10121574A - Construction method of building frame by use of pc member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a building frame by use of PC members which do not require support tool for a beam member when one end of the beam member is put on the upper end of a column form member before the PC column form member and the PC beam member are integrally formed with concrete. SOLUTION: One end of a beam member 6 is put on the upper end 2a of a column form member 2. A hooking member 10 having a L-shaped hook 10a protruded from one end face of the beam member 6 is embedded at the end face. The hook 10a is inserted in the hollow part 2b of the column form member 2 and arranged to contact the inside wall face thereof. A fixing plate is embedded in the inside wall face of the columnform member 2 through an anchorage member. The hook 10a of the hooking member 10 is caught in a state crossing with the fixing plate at right angles and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a building frame using PC members, and more particularly to a method of constructing columns and beams.

[0002]

2. Description of the Related Art Hitherto, in order to omit site construction work such as formwork construction, construction using a PC (abbreviation of precast concrete; the same applies hereinafter) members that have been manufactured in advance in a factory or the like has conventionally been used for construction of a building frame. The method has been adopted. In this construction method, when constructing the pillars and beams of the skeleton, FIG.
As shown in (1), the columnar frame member 2 made of PC having a hollow cylindrical shape is erected at a predetermined installation position, and reinforcing bars such as the main bar 4 are arranged in the hollow portion 2b of the columnar frame member 2. , Column form member 2
After placing the PC beam member 6 on the upper end portion 2a of the column form member, concrete is poured into the hollow portion 2b of the column form member 2 and a portion serving as a connection portion of the column / beam, and the column form member 2 is formed. And the beam member 6 are integrated with each other.

[0003]

However, when installing the beam member 6 on the upper end portion 2a of the column form member 2, one end of the beam member 6 is simply placed on the upper end portion 2a of the column form member 2. If the thickness M of the column form member 2 is 70
mm, which is so thin that the engagement margin D can be secured only slightly, for example, about 25 to 30 mm.
It is structurally impossible to support the load of the beam member 6 on the column, and even if the support is possible, there is a danger that the beam may fall due to a slight displacement.

Therefore, conventionally, as shown in FIG. 8, a plurality of supports such as supports 8 are provided below the beam member 6 to thereby support the beam member 6 from below. The load of the member 6 is stored in a support such as the support 8 and the stability of the beam member 6 is secured to prevent the beam 6 from dropping. For this reason, in the field construction, despite the labor saving of the field construction by using PC parts,
Since the installation work and the removal work of the support tool such as the support 8 were necessary, the shortening of the construction period and the reduction of the cost were not sufficiently achieved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a method for forming a column-shaped frame member and a PC-shaped beam member before they are integrated by casting concrete. It is an object of the present invention to provide a method of constructing a skeleton using a PC-made member which can eliminate the need for a support for supporting the beam member when placing and erection of one end of the beam member on the upper end of the beam member.

[0006]

According to a first aspect of the present invention, there is provided a method for constructing a skeleton using a PC member according to the present invention. In the method of constructing a frame by placing a beam member made of PC on the end of the column and placing the end thereof, the column form member and the beam member are integrated with each other by casting concrete to construct a skeleton. At this time, the beam-side hardware integrally provided at the end of the beam member and the column-side hardware integrally provided at the upper end of the column form member are engaged with each other. .

In this method of building a skeleton using a PC member, a P-shaped frame member made of a hollow cylindrical PC is provided with a P
When the C-shaped beam member is erected with one end thereof placed thereon, a beam-side hardware integrally provided at an end of the beam member and a column-side metal integrally provided at an upper end of the column form member. By mutually engaging the hardware, the load of the beam member is supported by the column form member via the beam-side hardware and the column-side hardware, and the beam member is stabilized by the engagement of the hardware. Thus, the beam member can be supported on the pillar, and the falling of the beam member can be sufficiently prevented. Accordingly, it is possible to eliminate the need for a support tool such as a support for supporting a beam member, which was required in the past, and to eliminate the work of installing and removing the support tool on site, thereby shortening the construction period and Cost can be reduced.

According to the second method of building a skeleton using a PC member according to the present invention, a PC beam member is attached to an upper end portion of a hollow cylindrical PC column form member. After placing and erection, in a method of integrating the column form member and the beam member by casting concrete to form a skeleton, when the beam member is erected, the beam member is integrally attached to an end of the beam member. The provided beam-side hardware and the column-side hardware integrally provided at the upper end of the column form member are joined to each other. If the beam-side metal part and the column-side metal part are joined to each other, the beam-side metal part and the column-side metal part are integrated with each other, and similarly to the above case, the load of the beam member is reduced by the beam-side metal part and the column-side metal part. The beam member can be supported on the pillar in a stable state by joining the hardware, and the dropping of the beam member can be sufficiently prevented. Therefore, it is possible to eliminate the need for the support which has been required in the past, and to eliminate the work of installing and removing the support in the on-site construction, thereby shortening the construction period and reducing the cost.

Further, when the beam-side hardware and the column-side hardware are engaged with or joined to each other, a reinforcing hardware that is joined to the beam-side hardware and the column-side hardware to connect them is provided.
The reinforcing hardware increases the engaging force or joining force between the beam-side hardware and the column-side hardware. As a result, the ability to support the beam member and the load transmission performance are improved at the engagement portion or joint portion between the beam-side hardware and the column-side hardware, so that a considerable load is applied to the joint between the beam-side hardware and the column-side hardware. Even if they are added, they can respond sufficiently.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for building a skeleton using a PC member according to the present invention will be described below in detail with reference to the accompanying drawings. The same components as those of the conventional example are denoted by the same reference numerals.

In the method for constructing a skeleton using a member made of PC according to the present invention, when constructing columns and beams of the skeleton, a PC
The column-shaped frame member is erected at a predetermined installation position, and a PC-made beam member is erected on the upper end of the PC column-shaped frame member. Then, the column-shaped frame member and the beam member are mutually connected by casting concrete. It is designed to be integrated into a skeleton.

FIGS. 1 to 3 show a first embodiment of a skeleton building method using a PC member according to the present invention.
FIG. 3 shows a state in which a PC beam member 6 is erected on an upper end 2 a of the PC column form member 2. Here, the PC column form member 2 is a hollow cylindrical member having a rectangular cross section. Reinforcing bars such as the column main bars 4 are provided in the hollow portion 2 b of the column frame member 2. At the upper end 2a of the column form member 2, two PC beam members 6 are attached to the end surfaces 6a.
a, each of which is opposed to each other and has one end mounted thereon.

The beam member 6 is a solid internal member having a rectangular cross section. The other end (not shown) opposite to the one end mounted on the upper end 2a of the column form member 2 has , Is mounted on and supported by the upper end of another adjacent column form member, or is supported by other supporting means.

At the one end of each beam member 6, two hooking members 10 are protruded as beam-side hardware.
The hooking member 10 is a metal member made of a flat steel material, a part of which is buried in the inside of the beam member 6, and the remaining portion protrudes from the end face 6 a of the one end of the beam member 6 and is downwardly formed in an L-shape. It is bent to form a hook 10a.
The hook member 10 is buried when the beam member 6 is manufactured. The two hook members 10 are arranged inside the beam member 6 in parallel with each other in the axial direction with a space between each other. The hooks 10 a of the hook members 10 have their tip portions inserted into the hollow portions 2 b of the column form members 2, respectively, and are vertically abutted against the inner wall surfaces of the column form members 2.

On the other hand, as shown in FIGS. 2 and 3, the hook 10a of the hooking member 10 is provided on the inner wall surface of the column form member 2.
An engagement plate 11 is provided as a pillar-side metal part corresponding to the abutting position of the tip of the rim. The engagement plate 11 is made of a flat steel material, is embedded inside the inner wall surface of the column form member 2, and is exposed flush with the inner wall surface. Here, the engagement plate 11 may be provided so as to protrude on the inner wall surface of the column form member 2. On the back side of the engagement plate 11, a fixing member 13 made of a bar-shaped steel material integrally connected extends vertically, bends downward in the middle, and extends toward a lower portion of the column form member 2. Have been. The engagement plate 11 is fixed by the fixing member 13 so as not to come off from the inner wall surface of the column form member 2. Both the engagement plate 11 and the fixing member 13 are embedded inside when the column form member 2 is manufactured. Then, the hook 10a of the hook member 10 is hooked and engaged with the engagement plate 11.

In addition, the hooking member 1
A triangular reinforcing member 14 is provided between the tip of the hook portion 10a and the engagement plate 11 to connect the two. The reinforcing members 14 are made of a flat plate-shaped steel material, and two reinforcing members 14 are provided on each of both side surfaces of the distal end portion of the hook portion 10 a of the two hook members 10, for a total of eight reinforcing members 14.
Each reinforcing member 14 is vertically abutted against both the side surface of the tip portion of the hook portion 10a of the hooking member 10 and the exposed surface of the engaging plate 11, and is joined by rigid fastening means such as welding. Have been. Thereby, the hooking member 10 and the engaging plate 11 are connected by the reinforcing member 14, and the engaging portion between the hooking member 10 and the engaging plate 11 is stiffened to increase the engaging force.

As described above, the hook member 10 is hooked and engaged with the engagement plate 11, and the hook member 10 and the engagement plate 11 are connected via the reinforcing member 14, so that the end of the beam member 6 is It is fixed to the upper end of the column form member 2. Thereby, the beam member 6 can be stably supported on the column form member 2, and the drop of the beam member 6 can be sufficiently prevented. Further, even if it is structurally impossible to support the beam member 6 simply by placing it on the upper end portion 2a of the column form member 2, the load of the beam member 6 is applied via the hooking member 10 and the engaging plate 11. Therefore, the beam member 6 can be sufficiently supported.

In particular, since the hook member 10 and the engaging plate 11 and the reinforcing member 14 and the hook member 10 or the engaging plate 11 are orthogonal to each other, the load of the beam member 6 can be transmitted well. it can.

The hook 10a of the hook member 10
If the hooking member 10 and the engaging plate 11 are joined together by a rigid fastening means such as welding along the adjacent portion, the hooking member 10 and the engaging plate 11 are integrated with each other. 11 can be increased.

From these facts, when the beam member 6 is erected, the beam member 6 can be fixed to the column form member 2.
No support tool such as a support for supporting the beam member 6 is required.

After the beam member 6 is erected on the upper end portion 2a of the column form member 2, concrete is poured into the hollow 2b of the column form member 2 and a portion serving as a connection portion between the column and the beam. Thus, the column form member 2 and the beam member 6 are integrated with each other to complete the construction of the columns and beams for one frame of the skeleton.

As described above, according to the above-described skeleton building method, when the beam member 6 is mounted on the upper end portion 2a of the column form member 2 with one end thereof mounted thereon, the beam member 6 conventionally required is supported. Therefore, support works such as supports are not required, so that the work of installing and removing the support works such as the support is not required in the on-site construction, so that the construction period can be shortened and the cost can be reduced.

FIGS. 4 and 5 show a PC according to the present invention.
9 shows a second embodiment of a method for constructing a skeleton using a member made of steel. In the second embodiment, a joining plate 12 is buried at the upper end 2 a of the column form member 2 via a fixing member 13 while being exposed flush with the end surface of the upper end 2 a. Here, the joining plate 12 may protrude above the end face of the upper end 2 a of the column form member 2. The joining plate 12 is made of a flat steel material, like the engaging plate of the first embodiment. On the other hand, two projecting members 16 made of a flat steel material are embedded in one end of the beam member 6 placed on the upper end surface of the column form member 2 instead of the hooking member of the first embodiment. ing. Projecting member 16
Has a protruding portion 16a protruding from the end surface 6a of the beam member 6, and the protruding portion 16a
2, and are joined by rigid attachment means such as welding. At the same time, the projecting member 16
A total of four reinforcing members 14 are provided between the protruding member 16 and the joining plate 12, one each disposed on both sides of the protruding portion 16 a of the protruding member 16 between the protruding member 16 and the joining plate 12. The joint strength has been increased.

Thus, in the second embodiment,
Since the projecting member 16 on the beam member 6 side and the joining plate 12 on the column form member 2 are mutually connected, the end of the beam member 6 and the upper end of the column form member 2 are integrally connected. Being
As in the first embodiment, since the beam member 6 is fixed to the column form member 2, a support such as a support for supporting the beam member 6 becomes unnecessary, and there is no installation work and no removal work. Thus, it is possible to shorten the construction period and reduce costs.

FIGS. 6 and 7 show a third embodiment of the method of building a skeleton using a PC member according to the present invention. In the third embodiment, two joining plates 12 are provided on the beam member 6 side, and two projecting members 16 are provided on the column form member 2 side. The joining plate 12
The beam member 6 is exposed and buried at an end face 6 a at one end thereof, and is fixed inside the beam member 6 via a rod-shaped fixing member 13. On the other hand, the projecting member 16 is embedded in the upper end 2a of the column form member 2, and has a projecting portion 16a projecting from the end face of the upper end 2a. The projecting portion 16a of the projecting member 16 of the column form member 2 and the joining plate 12 of the beam member 6 are superimposed on each other and joined by a rigid attachment means such as welding.

Thus, also in the third embodiment, the beam member 6 and the column form member 2 are integrally connected,
Since the end of the beam member 6 is fixed to the upper end of the column form member 2, similar to the first embodiment, a support such as a support for supporting the beam member 6 becomes unnecessary, and the installation thereof is performed. Since there is no work or removal work, it is possible to shorten the construction period and reduce costs.

In the first to third embodiments, the hook member 10, the protruding member 16, the engaging plate 11, and the joining plate 12 are used as the beam-side hardware and the column-side hardware. For example, a channel steel having a large rigidity such as a U-shaped cross section or an L-shaped cross section may be appropriately used.

[0028]

As described in the above embodiment of the present invention, according to the first method of constructing a skeleton using a PC member according to the present invention, the PC frame member is provided at the upper end portion thereof. When the beam member is erected with one end thereof placed thereon, the beam-side hardware integrally provided at the end of the beam member, and the column-side hardware integrally provided at the upper end of the column form member. By engaging with each other, the load of the beam member can be deposited on the column form member via the coupling member, and the beam member can be supported in a stable state, and the falling of the beam member can be reliably prevented. So
A support such as a support for supporting a beam member, which has been conventionally required, can be eliminated. Therefore, in the on-site construction, since there is no need to install and remove the support tool, it is possible to shorten the construction period and reduce costs.

Further, in the above-described method for constructing a skeleton, a simple operation of simply engaging the metal fittings on the beam side and the metal fittings on the column side is sufficient, so that labor saving or mechanization can be easily achieved.

Further, according to the second method of constructing a skeleton using a PC member according to the present invention, when a PC beam member is mounted on an upper end portion of a PC column form member with one end thereof placed thereon. ,
As described above, the beam member is joined to the beam hardware integrally provided at the end of the beam member and the column hardware integrally provided at the upper end of the column form member. Can be deposited on the column form member via the coupling member, and the beam member can be supported in a stable state, and the falling of the beam member can be reliably prevented. This eliminates the need for installation and removal of supports during site construction, shortening the construction period and reducing costs, and simply joining the beam-side hardware to the column-side hardware. Since simple work is sufficient, labor saving or mechanization can be easily achieved.

Further, when the beam-side hardware and the column-side hardware are mutually engaged or joined to each other, if a reinforcing hardware that is joined to the beam-side hardware and the column-side hardware to connect them is provided, the beam-side hardware is provided. In the engaging portion or the joining portion between the metal fittings and the column-side hardware, the engaging force or the joining force is enhanced, so that the ability to support the beam member and the load transmission performance are improved, and the beam-side hardware and the column-side hardware are connected to each other. Even when a considerable load is applied to the engaging portion or the joining portion, it is possible to sufficiently cope with the case.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a PC beam member is erected on an upper end portion of a PC column form member in a first embodiment of a skeleton building method using a PC member according to the present invention.

FIG. 2 is a partial cross-sectional view showing a state of a connection between a PC column form member and a PC beam member shown in FIG.

FIG. 3 is a perspective view showing a state of a connection portion between a PC column form member and a PC beam member shown in FIG. 1;

FIG. 4 is a perspective view of a second embodiment of a method for constructing a skeleton using a PC member according to the present invention;
It is a perspective view which shows the mode of the connection part with a beam-making member.

FIG. 5 is a partial cross-sectional view showing a state of a connection between a PC column form member and a PC beam member shown in FIG. 4;

FIG. 6 is a perspective view of a third embodiment of the method for constructing a skeleton using a PC member according to the present invention.
It is a perspective view which shows the mode of the connection part with a beam-making member.

FIG. 7 is a partial cross-sectional view showing a state of a connection portion between the PC column form member and the PC beam member of FIG. 6;

FIG. 8 is a side view for explaining an example of a conventional skeleton building method using a PC member.

[Explanation of symbols]

 2 Column form member 2a Upper end 4 Column main reinforcement 6 Beam member 10 Hook member 11 Engagement plate 12 Joint plate 14 Reinforcement member 16 Projection member

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04G 21/14 E04G 21/14

Claims (3)

[Claims] 1. A PC beam member is mounted on an upper end portion of a hollow cylindrical PC column frame member with its end placed thereon, and then the column frame member and the beam member are cast by concrete. In the method of constructing a skeleton by integrating with each other, when the beam member is erected, a beam-side hardware integrally provided at an end of the beam member and an upper end of the column frame member integrally. A method for constructing a skeleton using a PC member, wherein the provided column-side hardware is engaged with each other. 2. A PC beam member is mounted on an upper end portion of a hollow cylindrical PC column form member with its end placed thereon, and then the column form member and the beam member are cast by casting concrete. In the method of constructing a skeleton by integrating with each other, when the beam member is erected, a beam-side hardware integrally provided at an end of the beam member and an upper end of the column frame member integrally. A method for constructing a skeleton using a member made of PC, wherein the provided column-side hardware is joined to each other. 3. When engaging or joining the beam-side hardware and the column-side hardware, a reinforcing hardware that is joined to the beam-side hardware and the column-side hardware to connect them is provided. A method for constructing a skeleton using the PC-made member according to claim 1.