Endurance wall

A cost-effective load-bearing wall with a K-shaped brace and L-shaped fittings ensures enhanced seismic and wind resistance by allowing controlled deformation, addressing the high manufacturing costs of complex fittings.

JP7869381B1Active Publication Date: 2026-06-02ONE CONSTR
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
ONE CONSTR
Filing Date
2025-06-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The manufacturing of deformable connecting fittings for shear walls in wooden buildings requires multiple bending processes, leading to higher costs, and existing fittings are not cost-effective while maintaining high seismic and wind resistance.

Method used

A load-bearing wall structure with two diagonal braces in a K-shape (Σ-shape) using a central connecting fitting with a simple L-shaped cross-section, where the diagonal members are fixed to a column using screws of different lengths and positioned on a virtual coordinate system to accommodate varying wall heights.

Benefits of technology

The solution provides enhanced seismic and wind resistance with cost-effective fittings that can adapt to different wall heights without the need for custom fittings, preventing damage to diagonal members by allowing controlled deformation under loads.

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    Figure 0007869381000001_ABST
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Abstract

In a load-bearing wall having two diagonal braces arranged in a Σ shape, a high-strength load-bearing wall is provided by using an inexpensive central connecting fitting with a simple L-shaped cross-section. [Solution] This is a load-bearing wall in which a first diagonal member 14 and a second diagonal member 15 are installed in a rectangular space enclosed by a lower horizontal member 10, a first column 11, a second column 12, and an upper horizontal member 13. The lower end of the first diagonal member 14 and the upper end of the second diagonal member 15 are abutted together and fixed to a mounting piece of a central connecting hardware 30 located in the center of the second column. The central connecting hardware 30 is screwed to the side of the second column 12 using fixing holes 37 and 38 provided in the upper and lower regions in the longitudinal direction of the fixing piece 33. The central connecting hardware 30 allows for the installation of diagonal members without impairing the function even in load-bearing walls of different heights, and by appropriately using the mounting position and screws of different lengths, it prevents damage to the diagonal members and improves the strength of the load-bearing wall.
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