JPS5847842A - Connecting structure of strong wall - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a joint structure for load-bearing walls.

In conventional mass-produced houses constructed of thin-walled 1.11 panels with lip, the load-bearing walls are connected by sagging walls and waist walls, and anchor bolts and ordinary bolts are connected between the load-bearing walls and the foundation and flooring. are connected by.

FIG. 1 shows such a bonding structure.

In the figure, reference numeral 1 indicates a load-bearing wall, reference numeral 2 indicates a sagging wall that connects the load-bearing walls, and reference numeral 3 indicates a waist wall.

Further, reference numeral 4 indicates a foundation, and reference numeral 5 indicates a flooring material.

Conventionally, the load-bearing walls 1 and the foundation 4 are connected by anchor bolts 6, and the upper and lower load-bearing walls 1, 1 and the intermediate flooring 5 are connected by bolts 7.

The upper load-bearing wall 1 and the flooring 5 are connected by bolts 8.

In such a joint structure, for example, ordinary mortar having a material age of 28 days and a compressive strength of 210 kg/ctAt was filled between the bolt and the joint partner.

However, when ordinary mortar is used, it is not possible to obtain sufficient strength at the joints, and when large external forces such as those caused by earthquakes are applied, stress is locally concentrated at the joints made by bolts, resulting in localized failure.

There were drawbacks such as a reduction in the strength of the building.

The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional art, and an object of the present invention is to provide a joint structure for load-bearing walls that increases the strength of joint parts of load-bearing walls and improves rigidity and toughness. It is said that

In order to achieve the above object, the present invention adopts a structure in which high-strength mortar or high-strength non-shrinkable mortar is filled between bolts and members at the joints between load-bearing walls and other members. did.

The present invention will be described in detail below based on embodiments shown in nine drawings.

FIG. 2 and the following diagrams illustrate nine embodiments of the present invention, each showing a partially enlarged vertical sectional side view of each connecting portion.

FIG. 2 shows the state of connection between the foundation 4 and the load-bearing wall 1. That is, a through hole 9 is provided that extends conically from the lower end 1b of the recess 1a formed on the side surface of the lower end of the load-bearing wall 1 to the lower edge of the load-bearing wall.

Apply top mortar 4a to the upper end of the foundation 4 and insert the anchor bolt 6 through these holes. After fitting into the hole 9, high-strength mortar or high-strength non-shrinkage mortar 11 is filled into the through hole 9 and fixed with a nut 10.

FIG. 5 shows a structure in which upper and lower load-bearing walls 1, 1 are joined via left and right flooring materials 5.degree. 5'. In such a connection, a recess 1C is provided at the upper end of the lower load-bearing wall 1, and a through hole 1d is provided in communication with the recess 1C, and a recess sat sa' and through holes 9 in the upper load-bearing wall 1. recessed portion 5a of flooring material 5, 5';
High-strength mortar or high-strength non-shrinkage mortar 11 is filled into the recess 1C1 through-hole 1d of the load-bearing wall below 5a'. After that, a structure is adopted in which the top and bottom of the direct connection bolt 7, which has been penetrated and inserted in advance, is fixed with nuts 10.

FIG. 4 shows a joint structure between the flooring materials 5, 5' on the ceiling side and the load-bearing wall 1. In this case, a recess 5a formed at the joint of the left and right flooring materials 5, 5', After filling high-strength mortar or high-strength non-shrinkage mortar 11 between 5a' and the through hole 1d of the load-bearing wall 1, a structure is adopted in which bolts 8 inserted in advance are fixed with upper and lower nuts 10. There is.

By the way, FIGS. 5 and 6 show the joint structure between adjacent flooring materials, and high-strength non-shrinkage mortar is applied to the recesses 5a and 5a' formed on the joining surfaces of the left and right flooring materials 5 and 5'. 11
After filling the flanges 5b, 5b' of each flooring material 5, 5'
A structure is adopted in which bolts 12 that have passed through the gap are fixed with nuts 10 from both sides.

In this way, a space is provided at the connection part where the load-bearing wall and other members are joined by bolts, and this space.

The structure is filled with high-strength non-shrinkage mortar and the joints are integrated.

It can increase the rigidity and toughness of buildings. In addition, high-strength non-shrinkage mortar has a compressive strength of 28 days.
The adhesive strength is extremely high at 6 o Kg/crA, and it is possible to increase the adhesive strength, increase the overall proof stress, and reduce the conventional wall amount by about 15 mm.

As is clear from the above description, according to the present invention, a space is provided in the part where the bolts connecting the load-bearing wall and the foundation or flooring are provided, and high-strength mortar and high-strength non-woven material are provided in the space. Fill with shrinkage mortar. Since the structure is then joined using pre-pierced bolts, it can be integrated with each member, and the rigidity and toughness of the building can be significantly improved. In addition, since the bonded state has become stronger, the amount of walls can be reduced, and the strength of the load-bearing wall panels can be fully demonstrated, preventing local failure and improving the strength of the building.

[Brief explanation of the drawing]

Figure 1 is a front view of a load-bearing wall structure to which the present invention is applied;
The following figures show one embodiment of the present invention. Figure 2 is a partially enlarged vertical side view showing the connection structure between the foundation and load-bearing walls, and Figure 3 shows the connection state between the upper and lower load-bearing walls and flooring. Figure 4 is a partially enlarged vertical side view showing the joint structure between flooring and load-bearing walls on the ceiling side, and Figures 5 and 6 are longitudinal cross-sectional views showing the joint structure between flooring materials. FIG. 6 is a side view and a plan view (FIG. 6 shows a cross section taken along line A-A in FIG. 5). 1... Load-bearing wall, 5... Floor material, 6... Anchor pole) 1718... Bolt, 9... Through hole, 11...
High strength mortar or high strength non-shrinkage mortar. Patent applicant: Ube Koi Co., Ltd. 13rl! J 4th rIJ Figure 5 5 5all 5a'5' 16 Figure 209-

Claims (1)

[Claims] Compressive strength of 400 at the joint between the load-bearing wall and the foundation or flooring material
1. A load-bearing wall connection structure characterized by being filled with high-strength mortar or high-strength non-shrinkage mortar of kg/- or more (28 days old) and connected with bolts.