基于IDRAC的高强度RC框架损伤评价

Damage evaluation of high-strength renforced concrete Structure based on IDRAC

采用6层高强度RC框架结构为算例进行地震波输入下结构损伤的评价。引进损伤分析程序IDACR2D对框架结构在大震作用下进行动力分析,研究了高强度RC框架结构的抗震性能,并对损伤程度评价。研究表明采取加权系数组合法由构件损伤组合出层或结构整体损伤的方法较为合理,适用性较好。比较修正Park&Ang损伤模型与基于IDRAC损伤分析方法的损伤指标,表明本文的损伤模型更适用于评价高强度RC结构。采用加权系数组合法和自振频率衰减法计算的损伤指数分布情况能较实际地反映结构整体的损伤情况。

A six-story high-strength RC frame structure was studied.Dynamic analysis and structure damage according to aseismatic code were carrried out by IDARC2D program.Damage indices of every members and floor were calculated using the dynamic results according to the modified Park's model proposed above and IDARC2D.The comparison of damage results according to two models and comparison between damage indices of structural response indicate the feasibility of using the model propose above to evaluate the aseismatic ability of high strength structure.This model can better describe high-strength reinforcement structure.