Seismic Precast Concrete Blocks with Internal Bars for Axial Resistance
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Solution Overview
Problem
Existing seismic strengthening methods for reinforced concrete members, such as section enlargement and steel plate reinforcement, are cumbersome, costly, and require additional fire protection coatings, while precast concrete reinforcing panels lack sufficient resistance to axial forces.
Innovation Solution
A precast concrete reinforcing block assembly comprising interlocking cuboidal units with hollow holes for internal reinforcing bars and filling materials, allowing for efficient stacking and integration without additional fire protection, enhancing resistance to axial and lateral forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steel plate reinforcing method is used, then fire protection performance is improved, but additional fire protection coating process is required
Solution Approach 1:
The patent uses precast concrete reinforcing panel units that are homogeneous in material composition (concrete), eliminating the need for additional fire protection coatings since concrete inherently provides fire resistance. This resolves the contradiction by making the reinforcing structure itself fire-resistant without requiring separate fire protection processes.
Solution Approach 2:
The precast concrete reinforcing panel units serve multiple functions simultaneously: structural reinforcement, fire protection, and aesthetic finishing. The concrete material provides both the necessary structural strength and inherent fire resistance, eliminating the need for separate fire protection coating processes while maintaining reliability.
2Ease of operation
If connectors are used to couple precast concrete reinforcing panel units, then ease of assembly is improved, but resistance to axial force is worsened
Solution Approach 1:
The patent divides the reinforcing structure into standardized precast concrete panel units that can be easily assembled using connectors. Each unit is pre-fabricated with precise dimensions and connection features, enabling simple assembly while maintaining overall structural integrity for axial force resistance.
Solution Approach 2:
The patent uses composite construction combining precast concrete panels with connector systems. The concrete panels provide compressive strength and axial force resistance, while the connectors facilitate easy assembly. The combination of these materials and components resolves the contradiction between ease of assembly and axial force resistance.
Data Source
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AI summary
The present invention relates to a seismic reinforcement PC reinforcement block assembly and a method for constructing same, wherein an inner reinforcement bar is inserted into a cavity of a PC reinforcement block unit stacked/constructed on the outside of an existing member, and the cavity is filled with a filler material such that same can be constructed easily, and resistance against member axial forces can be reinforced without a separate fireproof coating.