混合试验数值子结构模型降阶综合法  

Hybrid experimental numerical substructure model reduction synthesis method

作　　者：孟祥雍 田石柱[1] MENG Xiangyong;TIAN Shizhu(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《四川建材》2025年第2期64-68,共5页Sichuan Building Materials

摘　　要：大型结构抗震混合试验方法是一种既经济又高效的结构抗震性能研究方法。它将实验室试验和数值模拟相结合,以更准确地模拟和预测结构的响应。为了在提高数值模拟效率的同时尽可能地保留结构的复杂性,进而在保证恢复力得到准确模拟的前提下提高抗震混合试验的效率,本文提出了模型降阶综合法。该方法将多种模型降阶方法引入到固定界面模态综合法中,提出动静自由度分离且针对结构的动力自由度进行合理缩减,并将该方法应用于大型结构抗震混合试验数值子结构中,以验证本文所述方法的可行性。The method of seismic hybrid testing for structures is an economical and efficient approach for studying the seismic performance of structures.It combines laboratory experiments with numerical simulations to more accurately simulate and predict the response of structures.In order to improve the efficiency of seismic hybrid testing while retaining the complexity of the structure as much as possible,and to enhance the efficiency of the testing while ensuring accurate simulation of the restoring force,this paper proposes a model reduction synthesis method.This method incorporates various model reduction techniques into the fixed-interface modal synthesis method,primarily targeting rational reduction of the dynamic degrees of freedom of the structure.The proposed method is then applied to the dynamic analysis of large-scale frame structures to validate its feasibility.

关 键 词：混合试验 大型结构抗震 模型降阶 动静自由度分离 

分 类 号：TU375[建筑科学—结构工程]