摘要
屈服机制是设计框架结构的重要指标。中国、美国等规范采用柱梁受弯承载力比来控制试验强柱弱梁屈服机制,而日本采用整体屈服机制。本文采用柱梁强度比设计的一榀二层框架,采用1/2比例模型进行拟动力试验和地震反映分析。试验结果表明:层间柱梁强度比是控制钢框架结构整体屈服的有效参数,框架各层加速度响应及位移响应能够较好的反映出结构的整体抗震性能,符合工程实际。
Yield mechanism is an important parameter for designing steel frame.Like most country,weak beam yield mechanism is adopted by China＇s architectural design standard,which is controled by column-to-beam bearing capacity ratio in moment-resistant frames.However,whole yield mechanism is used in Japan.The paper uses column-to-beam strength ratio to design a two-storeys potiol frame,making a pseudo-dynamic test and seismic response analysis by using1/2 scale model.The result indicates that the intensity ratios between columns and beams in a layer are the effective parameters to ensure steel frame to yield.The accelerate response and displacement responses in each layer is indicated that the stucture has excellent capacity of earthquake resistance.The experimental result is according with engineering practice.
出处
《四川建材》
2011年第1期34-35,共2页
Sichuan Building Materials
关键词
钢框架
层间柱梁强度比
拟动力试验
动力响应
steel frame
intensity ratio between column and beam in a layer
pseudo-dynamic test
dynamic response.
