884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

1) 西安建筑科技大學(xué)，710055； 2)中國(guó)建筑西北設(shè)計(jì)研究院，西安，710003；3)蘇州科技

學(xué)院，215011

［提要］結(jié)構(gòu)影響系數(shù)主要包括延性折減系數(shù)和超強(qiáng)系數(shù)。給出了按我國(guó)抗震規(guī)范設(shè)計(jì)的幾個(gè)典型抗彎鋼框架結(jié)構(gòu)，采用彈塑性時(shí)程分析方法確定了結(jié)構(gòu)的整體能力曲線?？紤]了結(jié)構(gòu)層數(shù)、跨數(shù)等對(duì)結(jié)構(gòu)延性和超強(qiáng)能力的影響，給出了在典型地震波作用下的各結(jié)構(gòu)的結(jié)構(gòu)影響系數(shù)值。建議在我國(guó)的結(jié)構(gòu)抗震設(shè)計(jì)中，抗彎鋼框架的結(jié)構(gòu)影響系數(shù)最小值可取4。

［關(guān)鍵詞］抗彎鋼框架；結(jié)構(gòu)影響系數(shù)；延性；超強(qiáng)；彈塑性時(shí)程分析方法

Research on Structural Influencing Coefficient of Moment-resisting Steel Frames/Li Cheng1, Xu Bairong2, Gu Qiang3(1 College of Civil Engineering, Xi"an University of Architecture ＆ Technology, Xi"an 710055, China; 2 Northwest Building Design and Research Institute, Xi"an 710003, China; 3 University of Science and Technology of Suzhou,Suzhou 215011, China)

Abstract:The structural influencing coefficient includes ductility reduction factor and overstrength factor.The moment-resisting steel frames are designed according to Chinese seismic code, and inelastic time history analysis has been performed on these steel frames to get the global capacity envelopes of structures. Involving effects of the number of stores and spans on structural ductility and overstrength capability, the structural influencing coefficient values are determined for moment-resisting steel frames under the action of the typical seismic wave.It is proposed that the minimum structural influencing coefficient value can be 4 for moment-resisting steel frames in Chinese earthquake resistant design of structure.

Keywords:moment-resisting steel frames; structural influencing coefficient; ductility; overstrength; inelastic time history analysis

*國(guó)家自然科學(xué)基金資助項(xiàng)目(50578099)。