PC圧着型外側耐震補強の圧着接合部における荷重一変形関係と破壊モードの推定

概要

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Recently, seismic retrofitting for existing buildings is an urgent problem. Because residents in the buildings often demand to reinforce them as quickly as possible while living, various seismic retrofitting methods by setting new strengthening frames outside the existing buildings have been proposed. In this study, the estimation method for performance of joints between existing frames and newly added strengthening frames assembled by prestressing connection is investigated. Following main results are obtained. 1. Utilizing previous test results, model of bearing stress-sinking displacement relationship of concrete is proposed. 2. Based on results of previous shear tests, model of shear stress-slip deformation relationship about prestressing connection is derived. 3. Making use of two models mentioned above, load-deflection relationship and failure mode of joints assembled by prestressing connection are estimated.
一般社団法人日本建築学会の論文
2011-03-25