(1 中国建筑标准设计研究院，北京 100048； 2 西安建筑科技大学，西安 710055)
［摘要］通过对我国现行抗震设计方法的简要概述，得出为了实现规范要求的钢框架梁铰倒塌机制，需要使用抗震性能好的钢材。特别对钢材屈强比的重要性作了重点阐述。为了在框架梁柱中能使用高强度、高屈强比的钢材，提出了必须发展新的抗震结构——控制震害结构(DCS)的必要性。
［关键词］β谱；抗震性能；梁铰倒塌机制；屈强比；塑性变形；控制震害结构
Requirement for steel performance during anti-seismic design of high-rise steel structural building
Yu Yinquan1, Zhang Qingjiang2(1 China Institute of Building Standard Design & Research, Beijing 100048, China；2 Xi’an University of Architecture and Technology, Xi’an 710055, China)
Abstract:By summarizing domestic actual anti-seismic design method, steel of high-performance for anti-seismic is needed to achieve beam plastic hinge collapse mechanism which is required in the code. The steel of high-performance for anti-seismic is the steel that meet the four basic requirements. It highlights the importance of steel yield ratio. To put steel of high strength and high yield-strength ratio into use for columns and beams in frame structure, necessity of developing new anti-seismic structural style, such as damage-controlled structures (DCS), is provided.
Keywords:β spectrum; earthquake resistant capability; beam plastic hinge collapse mechanism; yield-strength ratio; plastic deformation; damage-controlled structures
作者简介：郁银泉，教授级高级工程师，一级注册结构工程师，Email:yuyq@chinabuilding.com.cn。
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