人字形中心支撐鋼框架的結(jié)構(gòu)影響系數(shù)研究
楊俊芬1)，張凡2)，顧強(qiáng)3)
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1 西安建筑科技大學(xué)土木學(xué)院 710055；2 中國建筑西北設(shè)計(jì)研究院 西安 710003； 3 蘇州科技大學(xué)土木工程系 215011［提要］闡述了結(jié)構(gòu)影響系數(shù)的定義及計(jì)算方法，采用典型的地震動(dòng)記錄對按照我國規(guī)范要求設(shè)計(jì)的一人字形中心支撐鋼框架結(jié)構(gòu)進(jìn)行增量動(dòng)力分析并得到其結(jié)構(gòu)影響系數(shù)。結(jié)果表明，結(jié)構(gòu)影響系數(shù)受分析方法、極限狀態(tài)及破壞準(zhǔn)則、有限元模型等影響較大，需要在這些方面作大量的研究工作。［關(guān)鍵詞］結(jié)構(gòu)影響系數(shù)；中心支撐鋼框架；增量動(dòng)力分析；極限狀態(tài)；破壞準(zhǔn)則Study on Response Modification Factors of Inverted V CBSF/Yang Junfen１, Zhang Fan2, Gu Qiang3(1 School of Civil Engineering, Xi"an University of Architecture & Technology, Xi"an 710055, China；2 China Northwest Building Design & Research Institute, Xi"an 710003, China；3 Department of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China )Abstract:The definition and computation method of response modification factors (behavior factors) is explained, and an inverted V concentrically braced steel frame (CBSF) is designed according to Chinese design codes.The incremental dynamic analysis (IDA)is used to get the response modification factors. The results indicate that the analysis method of response modification factors, limit state, failure criterion and finite element model have much influence on the response modification factors of structures, and much work is needed in this research field.Keywords:response modification factors; CBSF; IDA; limit state; failure criterion
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