Replaceable Cover Plates in Shear Link Dampers
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Solution Overview
Problem
Existing earthquake-proof reinforcing methods, such as those using hydraulic and steel dampers, face high construction costs and lengthy replacement processes when dampers are deformed by external forces, necessitating a solution for efficient and cost-effective replacement of deformed components.
Innovation Solution
A shear link with replaceable cover plates, featuring a main frame and separably combined cover plates connected via a combination unit, allowing easy detachment and replacement of deformed cover plates, which are designed with through holes and slits to enhance deformation and force absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic dampers are used for earthquake-proof reinforcement, then earthquake-proof performance is improved, but construction costs increase excessively
Solution Approach 1:
The patent employs steel dampers with replaceable cover plates as a cost-effective alternative to hydraulic dampers. The cover plates are designed to be easily replaceable through a combination unit with bolts and nuts, allowing deformation to be absorbed by replaceable components rather than the entire damper structure, thereby reducing construction costs while maintaining earthquake-proof performance.
2Ease of manufacture
If steel dampers are used for earthquake-proof reinforcement, then construction costs are reduced, but replacement time and cost increase when dampers are deformed
Solution Approach 1:
The steel damper is segmented into a main frame and separate cover plates that can be independently replaced. The cover plates are connected to the main frame through a combination unit consisting of bolts and nuts, enabling quick detachment and replacement of deformed cover plates without replacing the entire damper assembly, thus reducing replacement time and cost.
Solution Approach 2:
The design allows the cover plates to be discarded when deformed and replaced with new ones, while the main frame is recovered and reused. This selective replacement approach minimizes waste and reduces replacement costs compared to replacing the entire damper assembly.
3Strength
If the whole damper is integrated, then structural strength is improved, but replacement complexity increases when dampers are deformed
Solution Approach 1:
The damper is divided into a main frame and removable cover plates connected by a combination unit. This segmentation maintains structural strength during operation while enabling simple replacement of deformed cover plates by detaching the combination unit, thereby reducing replacement complexity.
Solution Approach 2:
The combination unit with bolts and nuts provides a dynamic connection that allows the cover plates to be easily attached and detached. This dynamic connection maintains structural integrity during use but enables quick disassembly for replacement, balancing structural strength with replacement simplicity.
Data Source
AI summary
The present invention relates to a shear link including replaceable cover plates. The shear link includes first and second combination plates combined with a structure, a main frame that includes both ends fixed to the first and second combination plates respectively and a hollow formed in a center to pass therethrough forward and backward, first and second cover plates positioned to come into contact with left and right sides of the main frame respectively to cover the hollow and including a plurality of through holes passing therethrough forward and backward, and a combination unit that separably combines the main frame with the first and second cover plates.In the shear link including replaceable cover plates according to the present invention, since the first and second cover plates are separably combined with the main frame by the combination unit, the first and second cover plates deformed by an external force may be easily separated from the main frame to reduce time and costs consumed for a replacement operation.