论文部分内容阅读
基于美国规范ASCE41-13中对防屈曲支撑(BRB)性能指标的限值规定,采用大型非线性有限元分析软件ABAQUS,模拟分析了防屈曲支撑在不同性能水准下的受力性能和损伤程度,验证了美国规范性能指标限值的可行性,并结合实际工程实例,研究了防屈曲支撑性能指标对构件性能评估的意义,及其在基于性能的结构抗震设计中的应用.结果表明:有限元计算结果能准确地模拟防屈曲支撑的受力变形状态并验证其性能指标的正确性;该性能指标在基于构件性能的结构抗震评估研究中具有重要意义.
Based on the limits of BRC performance index in American Standard ASCE 41-13, large-scale nonlinear finite element analysis software ABAQUS was used to simulate and analyze the mechanical performance and damage degree of buckling brace under different performance levels. The feasibility of the limit value of the performance index in the United States was verified, and the practical engineering examples were used to study the significance of the performance index of the buckling brace on component performance evaluation and its application in the performance-based seismic design of the structure.The results show that the finite element The calculated results can accurately simulate the deformation state of the buckling brace and verify the correctness of its performance index. The performance index is of great significance in the study of structural seismic evaluation based on component performance.