Buckling Restrained Brace Plate Reinforcement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Buckling restrained braces have complex structures that increase costs due to the use of multiple reinforcing materials, making them expensive to manufacture and install, while existing solutions do not effectively improve yield strength and buckling strength.
Innovation Solution
A buckling restrained brace design featuring a core material with plate-shaped reinforcing members attached to its ends and optionally a second reinforcing member between core materials, allowing for improved axial and bending strength with a simpler manufacturing process and reduced material costs, along with a load-bearing structure that facilitates easy installation using slits in mounting members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple reinforcing materials are welded to the periphery of the core material and covered with other reinforcing materials from the outside, then buckling strength is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates the complex multi-layer reinforcing material structure from the buckling restrained brace. Instead of using multiple reinforcing materials welded to the periphery and covered with other materials, the invention uses a simplified design where reinforcing members are integrated into the core material structure itself, reducing overall complexity while maintaining buckling strength.
Solution Approach 2:
The core material in the patent serves multiple functions simultaneously: it acts as the structural member, provides reinforcement through its own geometry, and eliminates the need for separate reinforcing materials. This multi-functionality reduces device complexity while maintaining the required buckling strength.
2Strength
If multiple reinforcing materials are welded to the periphery of the core material and covered with other reinforcing materials from the outside, then buckling strength is improved, but manufacturing cost increases
Solution Approach 1:
The patent removes the expensive multi-layer reinforcing material structure and its associated welding operations. The simplified design uses fewer materials and simpler construction methods, directly reducing manufacturing cost while maintaining buckling strength through the optimized core material geometry.
Solution Approach 2:
The patent changes the design parameters by using a different geometric configuration of the core material that provides reinforcement through its shape rather than through additional materials. This parameter change reduces material usage and manufacturing complexity, lowering costs while maintaining structural strength.
3Strength
If a plate-shaped first reinforcing member is attached on the end portion of the core material, then axial strength and bending strength are improved, but device complexity increases
Solution Approach 1:
The patent merges the reinforcing member with the core material structure. Instead of attaching a separate plate-shaped reinforcing member to the end portion, the reinforcement is integrated into the core material's geometry, combining the functions of the core material and reinforcing member into a single unified structure, thereby reducing device complexity.
Solution Approach 2:
The core material structure serves multiple functions: it provides the primary structural element, incorporates end reinforcement through its geometry, and eliminates the need for separate reinforcing components. This multi-functionality reduces the number of parts and overall structural complexity while maintaining axial and bending strength.
Data Source
AI summary
Provided are a buckling restrained brace including a core material that has a plate shape and extends along an axis, a restraining member that extends along the axis and covers the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler that is filled between the restraining member and the core material, and a pair of first reinforcing members that each have a plate shape and are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace.