JPH0667619U - Bearing wall assembly structure - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The joint between the beam and the wall will be eliminated to strengthen the structure and to save labor and improve the efficiency of on-site work. [Structure] Beam type 2 is provided on the upper portion and / or the lower portion of wall 2a.
The beam-bearing load bearing wall 2 integrally having b and 2c, and the PC steel materials 5 and 6 passed through the sheath provided in advance on the beam-bearing load bearing wall 2 are provided, and the beam-bearing load bearing wall 2 is bonded. It is fitted between the columns 1 via an agent, and is rigidly connected to the columns 1 by the pressure by the prestress introduction by the PC steel materials 5 and 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a load-bearing wall assembly structure in which a precast wall is applied between columns by a pressure bonding method by prestressing.

[0002]

[Prior art]

 In a precast building, the frame formation by columns and beams can be easily formed by various methods. In particular, the prestressing crimping method is widely used. However, in order to construct a more economical precast building, the seismic force determines the member size, so a seismic wall is required to make the columns and beams more economical.

Therefore, conventionally, a structure in which a wall is cast between columns and beams in situ and a structure in which a precast wall as a bearing wall is fitted into a frame composed of columns and beams have been proposed. Among them, in the case of cast-in-place walls, wall reinforcements such as braces and inserts are provided to connect with precast beams and columns.

On the other hand, in the case where the precast wall is fitted as described above, in order to join the precast wall and the beam or column to which the precast wall is attached, the precast wall is held by anchor bars or the like for welding or fastening. A plate or the like is provided so as to project, and a hardening material such as mortar is injected into the gap between these joints.

[0005]

[Problems to be solved by the device]

 However, in such a conventional assembly structure, when the above-mentioned wall is cast in-situ, many of them are embedded for connecting with wall reinforcements such as inserts or inserts from precast beams or columns, thus increasing the assembly work efficiency. However, there is a problem in terms of cost and cost. After completing the assembly of the wall to the precast beam or column, it is necessary to reinforce the wall reinforcement and attach the formwork, which was originally intended to shorten the construction period and improve the workability. There was a problem that it was against the assembly method.

[0006] Furthermore, in the case where the precast wall is fitted into the frame, many plates are embedded in the precast wall and the precast beams and columns, and precision is required for their attachment, and also in welding and bolt fastening work. In addition, there were problems such as the need for laborious and inefficient work for filling mortar.

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to avoid the anxiety of joint strength which connects the beam and the wall in the conventional art, and to save the field work significantly. It is intended to provide a wall assembly structure.

[0008]

[Means for Solving the Problems]

 The load-bearing wall assembly structure according to the invention of claim 1 is made to pass through a beam-bearing load-bearing wall integrally having a beam-type on the upper and lower portions of the wall, and a sheath provided in advance on the beam-bearing load-bearing wall. A PC steel material is provided, the beam-bearing bearing wall is fitted between columns through a hardening material, and the PC steel material is press-fitted by introducing prestress to rigidly bond to the pillar.

A load bearing wall assembly structure according to a second aspect of the present invention is provided with a beam-type bearing wall, a connecting rebar protruding downward from a lower portion of the beam-bearing bearing wall, and a lower end of the beam-type bearing wall. A cotter projecting from the slab and a pillar to which the beam-bearing load-bearing wall is fitted via a hardened material, and the above-mentioned PC-steel material is used for prestressing to rigidly connect the beam-bearing load-bearing wall. The bottom floor beam that supports the type bearing wall is provided with mounting holes for accommodating the joint reinforcing bars of the beam bearing type wall, and the cotter is surrounded by a hardening material such as concrete or mortar. is there.

The above-mentioned hardening material is meant to include both cements such as mortar and concrete and adhesives, and is used for integrally joining.

[0011]

[Action]

 The beam-bearing load bearing wall according to the invention of claim 1 uses the upper and lower beams and the wall as precast products, which are fitted between the columns via a hardening material such as joint mortar and passed through the steel. By tensioning the walls in the lateral direction, it is possible to easily form a structure with sufficient strength in which a wall and beams similar to a solid wall are installed between columns.

[0012] The beam-bearing load bearing wall according to the invention of claim 2 has a beam integrally on only the upper part, and inserts a connecting rebar extending to the lower part into the mounting hole of the lowest floor beam where the hardening material is charged, and By holding the cotter protruding at the bottom in the hardened material cast on the beam on the lowest floor, it is possible to easily and securely install the bearing wall with a beam type between columns and on the beam on the lowest floor. To do.

[0013]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a plurality of pillars of a structure, 2 is a beam-bearing bearing wall fitted between the pillars 1, which is made up of beam dies 2b and 2c integrally provided above and below the wall 2a, Pre-cast as a precast product.

In addition, 4 is a joint mortar as an adhesive interposed between the beam-bearing bearing wall 2 and each pillar 1, and 5 is a pressure-sensitive adhesive mortar that penetrates the pillar 1 and the beam dies 2 b and 2 c through a sheath, The PC steel material as shown in FIG. 2 for the purpose of the treatment, 6 is the PC steel material which penetrates through the sheath laterally inserted into the wall 2a of the beam-bearing bearing wall 2, and the pillar 1 is caused by the stress introduced by this. The wall 2a is rigidly crimped to the.

In such a load bearing wall assembly structure, beam bearing load bearing walls 2 are arranged between columns 1 and joint mortar 4 as a hardening material is injected into these gaps, and at the same time, a prestress is introduced through each sheath. It is constructed by laterally tensioning the PC steel materials 5 and 6.

In this case, since the beam-bearing load bearing wall 2 integrally has the beam dies 2b and 2c above and below the wall 2a, it is easy and quick to mount the beam dies 2b and 2c between the columns 1 as described above. Further, it is possible to construct the above-mentioned load-bearing assembly structure, and moreover, it is possible to obtain an advantage that it is strong against an earthquake and can save labor and facilitate field work only by the tensioning operation of the PC steel materials 5 and 6.

Further, since the beam-bearing load bearing wall 2 integrally has the beam dies 2b and 2c on the upper and lower sides, as shown in FIG. In other words, it is necessary to arrange them in a checkerboard pattern, and the walls sandwiched between them will have walls of a different structure from those formed by cast-in-place or precast members.

In the above embodiment, the beam-bearing load bearing wall 2 becomes large in size, which may cause a problem in road transportation. Therefore, at this time, the beam-bearing load bearing wall 2 is divided into a plurality of sections in the lateral direction. For example, in the case of dividing into three parts and carrying them into the site to form them as wall surfaces, these three pieces are integrated with PC steel material, and joint mortar 4 is applied to the whole of these three pieces, or they are integrally connected or partially ( For example, joint mortar 4 may be applied only to the beam portion, and slits may be left in other portions so that they are not joined.

That is, each of these divided beam-type bearing walls can be made into two types of earthquake-resistant walls by the crimping method, one of which is the joint between all the divided beam-type bearing walls. The integrated earthquake-resistant wall with mortar 4 can secure the same proof strength as the cast-in-place wall. On the other hand, if the above-mentioned slits are provided in part and only the beam part is prestressed, it will create a very weak part. The yield strength of this can be used as the yield strength of the bearing wall.

Example 2. FIG. 4 shows another embodiment of the present invention. In this embodiment, the beam-bearing load-bearing wall 2A is used as a wall 2e having a beam 2d on the upper part, and the connecting reinforcing bar 10 embedded in the wall 2e and projecting to the lower end is precast or cast on the bottom floor. It is buried in the lowest floor beam (for example, underground beam) 11 of the above, and a non-compressible mortar 12, which is a hardening material, is placed between the wall 2e and the lowest floor beam 11.

In this embodiment, a beam type is not provided on the lower portion of the wall 1e for the lowermost floor (there are many underground casters). As shown in FIG. 5 and FIG. 6, a mounting hole 14 whose periphery is reinforced by a spiral wire 13 is provided, and the lower end portion of the joint rebar 10 can be inserted into the mounting hole 14 to fill the mortar 15 therein. I am doing it.

Further, as described above, the non-shrink mortar (or top concrete) 12 is cast as a floor slab between the lowermost beam 11 and the wall 2e. At this time, the wall 2e The lowermost end of the cotter 16 protruding from the lower end of the floor is placed on the upper surface of the bottom floor beam 11, and the non-shrink mortar 12 is placed between the wall 2e and the bottom floor beam 11 to form the floor slab. Form.

Therefore, the beam-bearing load-bearing wall 2A is arranged on the lowest floor beam 11 so as to be fitted between the columns 1, the joint reinforcing bar end is inserted into the mounting hole 14 through the mortar, and the cotter 16 is attached. By applying the non-shrink mortar 12 between the lowermost floor beam 11 and the wall 2e so as to wrap it, the beam-shaped load bearing wall 2A is mounted on the lowermost floor beam 11 and between the columns 1. At this time, the non-shrink mortar 12 enables the stress transmission from the cotter 16 to the lowest floor beam 11.

Further, in FIGS. 5 and 6, 19 is a PC steel material for stress introduction similar to the above-mentioned embodiment for tensioning the lowest beam 11 and the pillar 1 through the sheath, and 20 is embedded in the non-shrink mortar 12. It is the main story that was done.

Also in this embodiment, the beam-shaped bearing wall 2A is divided into a plurality of parts in the lateral direction to facilitate transportation, and when the pillar 1 is installed, these are integrated or, as described above, integrated. Alternatively, the beam-bearing load bearing walls 2A may be connected to each other via a slit. In this case, the slit may be filled with joint mortar.

Further, the beam-bearing load bearing wall 2A shown in FIG. 4 can be installed in the same manner even for an underground beam placed between footings on a foundation pile.

[0027]

[Effect of device]

 As described above, according to the first aspect of the present invention, the beam-bearing load bearing wall integrally having the beam casts on the upper and lower portions of the wall, and the P threaded through the sheath previously provided on the beam bearing load bearing wall. C steel material is provided, the beam-bearing bearing wall is fitted between columns through a hardening material, and the PC steel material is configured to be rigidly connected to the columns by pressure bonding by introducing prestress. It is possible to eliminate the horizontal joints at the joints between beams and walls, which require the highest strength, and to simplify and streamline the site construction work for structures. .

Further, according to the invention of claim 2, a connecting rebar which is provided in the beam-shaped bearing wall and projects downward from the lower part of the beam-shaped bearing wall, and a protruding portion is provided at the lower end of the beam-shaped bearing wall. The cotter and the beam-bearing load-bearing wall are fitted with an adhesive, and a column for rigidly connecting the beam-bearing load-bearing wall is provided by introducing prestressing with the PC steel material. Since the bottom floor beam that supports the mortar is provided with a mounting hole filled with mortar for accommodating the joint rebar of the beam-bearing load bearing wall, and the cotter is wrapped around with concrete or mortar, the underground beam is constructed. There is an effect that it is possible to easily attach a beam-type bearing wall between the lowest floor and the beams on the upper floor, and to construct a structure with sufficient strength.

[Brief description of drawings]

FIG. 1 is a front view of an essential part of a load bearing wall assembly structure according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is an explanatory diagram showing an arrangement of beam-bearing bearing walls in FIG.

FIG. 4 is a front view of an essential part showing a load bearing wall assembly structure according to another embodiment of the present invention.

5 is a front sectional view showing, in an enlarged manner, a main part of a mounting structure of the beam-bearing load bearing wall in FIG. 1 to the lowest floor beam.

FIG. 6 is a side sectional view showing, in an enlarged manner, a main part of a structure for mounting the beam-bearing load bearing wall in FIG.

[Explanation of symbols]

 1 Column 2, 2A Beam-bearing bearing wall 2a, 2e Walls 2b, 2c, 2d Beam-type 4 Joint mortar, adhesive (hardening material) 5,6 PC steel 10 Bonding bar 11 Bottom floor beam 12 Non-shrink mortar (hardening) Material) 14 Mounting hole 15 Mortar 16 Cotter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location E04G 21/12 105 E 7228-2E

Claims (2)

[Scope of utility model registration request] 1. A beam-bearing load bearing wall integrally having a beam cast on an upper part and / or a lower portion of a wall, a PC steel material passed through a sheath previously provided on the beam bearing load bearing wall, and the beam cast A load-bearing wall assembly structure, wherein the load-bearing wall includes a hardened material and a column for rigidly connecting the beam-bearing load-bearing wall by pressure bonding by introducing prestress by the PC steel material. 2. A beam-type bearing wall integrally having a beam type on the upper part of the wall, a PC steel material passed through a sheath previously provided in the beam type, and a beam-type bearing wall provided on the wall. By joining the reinforcing bars projecting downward from the lower part of this, the cotter protrudingly provided at the lower end of the beam-shaped bearing wall, the beam-bearing bearing wall as a hardening material, and by crimping by prestressing the PC steel material, A column that rigidly connects the beam-type bearing wall and a mounting hole that accommodates the connecting rebar of the beam-type bearing wall and that is filled with a hardening material, and is hardened to be cast around the cotter. A load-bearing wall assembly structure including a lowermost floor beam supporting the beam-bearing load-bearing wall with a material.