碟簧式自復(fù)位防屈曲支撐滯回性能數(shù)值模擬
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中圖分類號：TU352.11；TB115.2 文獻(xiàn)標(biāo)志碼：B
Numerical simulation hysteretic performance disc spring self-centering system buckling-restrained brace
ZHANG Cheng WANG Dunqiang
Abstract： In order to study the hysteretic performance the disc spring self-centering system bucklingrestrained brace（SC-BRB），the finite element simulation is analyzed by using Abaqus，and the hysteretic performance the support is carried out.The accuracy the finite element model is verified by referring to the relevant experiments and theoretical analysis models. The results show that the hysteretic curve SC-BRB presents a significant“flag”characteristic and has good restoring efect，and the higher initial preload the disc spring，the more effective resetting action the support.
Key words： self-centering system； buckling-restrained brace； hysteretic performance； numericasimulation；Abaqus；finite element model
0引言
防屈曲支撐（buckling-restrainedbrace，BRB）在中大震作用下會產(chǎn)生較大的殘余變形，加大建筑物的震后修復(fù)難度和成本[1]。（剩余4919字）