METHOD FOR REINFORCING EARTHQUAKE RESISTANCE OF STRUCTURE WITH REINFORCED-CONCRETE COLUMN MEMBER

摘要

PROBLEM TO BE SOLVED: To effectively ensure an aseismic property in the whole structure system with a reinforced-concrete column member.;SOLUTION: In a method for reinforcing a structure, reinforcing omitting sections are fitted only in one section and concentrated reinforced steel materials are arranged at the end sections of the omitting sections and the structure has the column member making the apparent shearing-strength ratio (a ratio of the apparent shearing strength using reinforcing omitting-section lengths as shearing spans to that at a time when the member reaches a bending strength) of the reinforcing omitting sections larger than 1. In the method, an energy absorbing capacity as the whole structure at the time when the horizontal strength of the structure at the time when the reinforcing omitting section is not fitted to the whole column member is set in P0 and a ductility factor is set in δ0 is set in E0 (=P0×δ0). In the method, the energy absorbing capacity as the whole structure at the time when the reinforcing omitting sections are fitted to the specified column member of the structure and the ductility factor of the column member is set in δ2 (δ0) and the ductility factors of the residual column members fitting no reinforcing omitting section are set in δ1 (δ0) is set in E1. The number of columns mounting the reinforcing omitting sections or the horizontal strength of the structure with the column members mounting the reinforcing omitting sections is set in E1≥E0 in both cases.;COPYRIGHT: (C)2008,JPO&INPIT