正交胶合木填充墙-钢框架体系受力性能

采用开源地震工程模拟系统(OpenSees)对以正交胶合木作填充墙的钢框架结构进行探索性数值研究,主要研究该填充墙钢框架单元在单调和循环加载作用下的受力性能,墙体与钢框架之间的协同工作性能以及连接个数对整体结构受力性能的影响.结果表明:正交胶合木填充墙能够提高钢框架的抗侧刚度和水平承载力;柔性连接的设置使整体结构耗能性能良好;工作缝的设置减缓墙体的开裂,更大程度上发挥连接件的耗能和变形能力;连接个数对构件的抗侧能力影响较大,可以通过调整连接数量和连接间距设计出具有多种刚度和耗能能力的框架单元.

Mechanical performance of cross laminated timber infill wall-steel frames

Open System for Earthquake Engineering Simulation (Abbrev.OpenSees) was used to do some exploratory numerical research on the cross laminated timber (CLT) infill wall-steel frame system.Numerical analysis was performed including the mechanical performance of the CLT infill wall-steel frame under monotonic and cyclic loading,cooperative working performance between the CLT panel and steel frame,and the influence of the number of bracket connections on the mechanical performance of the structure.The results are presented as follows:the lateral stiffness and bearing capacity of the steel frame can be strengthened by the CLT infill wall;flexible connections show a better performance of energy dissipation;the gap setting is not only used to postpone the cracking time of the wall,but also beneficial to develop the energy dissipation and deformation of connections;the number of connections has great effect on the lateral resistance of the structure,and furthermore,various stiffness and energy dissipation capacities of the structure can be designed by adjusting the number and space of connections.