JPH111960A - Method for constructing precast concrete building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve constructibility and reduce cost by standardizing a column intermediate member, a column-beam connection member and a beam member and forming them of precast concrete, placing the column-beam connection member on one end of the column intermediate member, placing the beam member on the column-beam connection member astride and binding them together. SOLUTION: The column intermediate member 1, the beam-column connecting member 2, the beam member 3, and a slab 4 are standardized and formed of precast concrete. First, the column intermediate member 1 is placed on the beam-column connecting member 2' of a lower floor that has already been constructed and bound through the first connecting member, the beam-column connecting member 2 is placed on the column intermediate member 1 in such a way that the beam-column connecting member 2 faces a beam receiving portion 2b formed on the side face of the beam- column connecting member 2, and bound by a connecting member. The beam member 3 is placed on the beam receiving portions 2b astride, and the end of the beam member 3 is bound to the surface of a step 2c of the beam receiving portions 2b, and in addition, a slab 4 is placed on the beam member 3 and bound by the second connecting member. Standardizing component members by using precast concrete helps reduce cost and improve construction efficiency and quality.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for constructing a precast concrete building.

[0002]

2. Description of the Related Art Conventionally, a reinforced concrete building is constructed by various types of occupations intertwined with each other. In addition, many occupations require excellent skills and many years of experience. In other words, constructing a reinforced concrete building requires a large amount of labor and time, as well as skill and experience of an operator, and is considerably inefficient and expensive in terms of construction.

[0003]

In the construction of a reinforced concrete building, a single column is usually provided with four beams, two in each of the X and Y directions, and two columns in the Z direction. Is attached. That is, the column-beam joint has a three-dimensional configuration in which a total of six members, two in the X, Y, and Z directions, are attached. The present invention provides a two-dimensional structure in which a beam in one of the X and Y directions is substituted for a slab to simplify a beam-column joint, a two-dimensional structure in which two beams are attached to one column, and a precast concrete. It is an object of the present invention to provide a method of constructing a precast concrete building that can improve workability and reduce costs by standardizing constituent members using the method.

[0004]

According to the present invention, as a means for achieving the above object, a pillar intermediate member, a beam-column joint member, and a beam member are standardized and formed by precast concrete, respectively. The column intermediate member is placed on the column-column joint member on the lower floor and tightened by a connecting member to be built at the opposing position, and the column-beam joint member is mounted on the upper end of the column intermediate member and tightened by the connecting member, respectively. The gist of the present invention is a precast concrete building construction method in which a beam member is inserted into a beam-column joint member, and both ends of the beam member are fastened by a connecting member, and a slab is placed on the beam member and fixed by the connecting member. In addition, a structural unit including a column intermediate member, a beam-column joining member, and a beam member is constructed for each span, and the structural units are joined to each other in a lateral direction. The pillars were constructed by winding a reinforcing wire such as carbon fiber around the outer periphery of the joining member, and the slab was standardized and a plurality of slab members formed of precast concrete were tied up with a connecting material. is there.

[0005]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In FIG. 1, 1 is a column intermediate member, 2 is a beam-column joint member, 3 is a beam member, and 4 is a slab, which are standardized and formed by precast concrete.

FIGS. 2A to 2F show an assembly procedure of the precast concrete building construction method according to the present invention.
First, as shown in (a), the column intermediate member 1 is placed on the already constructed lower beam / column joint member 2 ', and is tightened via the first connecting member 5 shown in FIG. Build in.

[0007] The first connecting member 5 is used in a segment of a shield tunnel, and is, for example, substantially in the form of a scribing as shown in FIG. The engaging holes 1a and 2'a provided in the member 2 'are symmetrically matched with each other, and the members 2' can be tightened by driving the engaging holes 1a and 2'a.

Next, as shown in FIG. 2 (b), the column-beam connecting member 2 is placed on the column intermediate member 1 and tightly connected by the connecting members 5. At this time, the beam receiving portions 2b formed on the side surfaces of the column-beam coupling member 2 are opposed to each other.

After that, as shown in FIG. 2 (c), the beam member 3 is inserted into the beam receiving portion 2b of the beam-column connecting member 2 and erected.
The ends of the beam members 3 are tightly connected to the step surfaces 2c of the beam receiving portions 2b via the second connecting members 6 shown in FIG.

The second connecting member 6 has a substantially T-shaped rod shape as shown in FIG. 3B, for example, and has an engaging hole 3a provided in the beam member 3 and a stepped portion of the column receiving portion 2b. The engaging holes 2a provided on the surface 2c are aligned with each other, and the communicating engaging holes 3a, 2d
You can be tightly bound by typing.

Further, as shown in FIG. 2 (d), the slab 4 is placed on the beam member 3 and tightened via the second connecting member 6. The slab 4 is formed by joining a plurality of slab members 4 a long in a direction (Y direction) perpendicular to the length direction (X direction) of the beam member 3 as shown in FIG. It is formed in a flat plate shape by being tied, and cutouts 4b are formed at the corners.

The end of the slab 4 is placed on the beam member 3 as described above, and the slab 4 is tightened by the second connecting member 6. The end face of the slab 4 is in contact with the center line L (FIG. 1) of the upper surface of the beam member 3 in contact with the side surface and the inner surface of the portion. That is, when the slabs 4 are attached from both sides with the beam member 3 interposed therebetween, the end faces of both slabs are surface-joined on the center line L on the upper surface of the beam member 3, that is, the slabs 4 on both sides are joined. 3
At the center.

In this case, the slab 4 is inserted between the beam members 3 and both ends of the slab 4 are fastened to the beam member 3, respectively, and the slab members 4c having the cutouts 4b located on both sides are moved in the Y direction. Instead of the beam member. Therefore, the beam member 3 exists only in the X direction connecting the opposing column intermediate members 1 and is different from the existing members existing in both the X and Y directions. For this reason, it is useful to arrange the equipment piping and the like in the X direction by using the portion where the beam does not exist.

In this way, by repeating the procedures of FIGS. 2A to 2D, the upper floor can be constructed sequentially while assembling the structure U. FIGS. 2E to 2F show the structure U
The structure U is constructed for each span P, and the adjacent structures U and U 'are laterally joined as shown in FIG. And the beam-to-column joint members 2, 2 'are united, and the outer periphery thereof (excluding the beam receiving portions 2b, 2'b of the beam-to-column joint members 2, 2') is made of The reinforcement wire 7 is wound to form the pillar 8.

The reinforcing wire 7 such as carbon fiber is wound around the column 8 because the column 8 is vertically divided by the column intermediate members 1 and 1 'and the column and beam joining members 2 and 2'. This is because the reinforcing wire rod 7 is used as a substitute for a reinforcing bar, and no reinforcing bar is required.

[0016]

As described above, according to the present invention,
In order to simplify the beam-column joint, the performance of the beam in one of the X and Y directions is substituted for the slab, and a so-called two-dimensional configuration is used. The following excellent effects can be expected. it can. By using precast concrete and standardizing the components, cost reduction can be achieved and it is suitable for mechanized construction. Since it is easy to assemble via the connecting material, even an unskilled person can perform the construction, improving the construction efficiency and shortening the construction period, improving the construction quality, and reducing labor costs by reducing the number of occupations and skilled workers. As for the pillar, by winding a reinforcing wire material such as carbon fiber, the reinforcing bar and the arrangement of the reinforcing bar become unnecessary, and the cost can be reduced. By leaving the beam shape of the small beam on the slab, the equipment piping etc. can be stored without difficulty. By constructing the structure for each span, extension and remodeling becomes easy.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a component used in the present invention.

FIGS. 2 (a) to 2 (f) are explanatory views respectively showing an assembling procedure of a precast concrete building construction method according to the present invention.

FIGS. 3A and 3B are explanatory views showing connecting members, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Column intermediate member 2 ... Column beam connection member 3 ... Beam member 4 ... Slab 5 ... 1st connection member 6 ... 2nd connection member 7 ... Reinforcement wire 8 ... Column

Claims (3)

[Claims] 1. A pillar intermediate member, a beam-column joint member, and a beam member are standardized and formed by precast concrete, respectively, and the pillar intermediate member is placed on a pillar-beam joint member on a lower floor and tightened by a connecting member. Then, the beam-column joint member is placed on the upper end of the column intermediate member and tightened by a connecting member. The beam member is inserted into the column-beam joint member, and both ends thereof are connected with the connecting member. A precast concrete building construction method, characterized in that a slab is placed on the beam member and fixed with a connecting member. 2. A structural unit composed of a column intermediate member, a beam-column connecting member, and a beam member is constructed for each span, and the structural units are joined to each other in a lateral direction, and the column intermediate members are united. The method for constructing a precast concrete building according to claim 1, wherein the pillar is formed by winding a reinforcing wire such as carbon fiber around the outer periphery of the beam-column joint member. 3. The precast concrete building construction method according to claim 1, wherein a plurality of slab members are standardized and formed of precast concrete, and a plurality of slab members are connected by connecting members.