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1)長安大學(xué)建筑工程學(xué)院，西安，710061；2)西安建筑科技大學(xué)，710055；3)西安高架快速干道工程建設(shè)有限責(zé)任公司，710004
［提要］對某3層3跨的縱向消能支撐框架模型結(jié)構(gòu)進(jìn)行了擬靜力加載試驗(yàn)。介紹了試驗(yàn)情況，并根據(jù)試驗(yàn)結(jié)果對模型結(jié)構(gòu)的變形性能和位移反應(yīng)進(jìn)行了研究，對部分構(gòu)件的轉(zhuǎn)角位移及其延性進(jìn)行了分析，指出了此結(jié)構(gòu)的薄弱層，并提出了加強(qiáng)措施。試驗(yàn)結(jié)果表明，消能支撐框架模型結(jié)構(gòu)具有良好的延性性能和耗能能力。給出了模型結(jié)構(gòu)剛度參數(shù)的確定方法和公式，提出了設(shè)計建議，為進(jìn)一步的理論分析和工程應(yīng)用奠定基礎(chǔ)。
［關(guān)鍵詞］縱向消能支撐框架；變形性能；位移反應(yīng)；剛度參數(shù)
Analysis of Deformation Performance and  Stiffness of Longitudinal Frame Model with Energydissipation Braces/Sun Xianghong1,2, Wang Sheliang2, Yao Tao2,3(1 College of Civil Engineering, Chang"an University, Xi"an 710061, China;2 Xi"an University of Architecture & Technology, Xi"an 710055, China;3 Xi"an Liability of Elevated Express Way Project Co., Ltd., Xi"an 710004, China)
Abstract:The pseudostatic test on the longitudinal frame model of 3 stories and 3 spans with energydissipation braces is carried out. The experimental summary is briefly introduced. On the basis of experimental results, the deformation performance and ductility of the model structure are studied. Strengthening measure for weak story is put forward. The results indicate that the structure is of good ductility and energydissipation capacity, which meets the requirements of code. A method and a simplified formula for the determination of the stiffness parameter are proposed. Some recommendations to seismic design are presented for the sake of advanced theoretical analysis and engineering practice.
Keywords:longitudinal energydissipation braced frame; deformation performance; stiffness parameter
*國家自然科學(xué)基金資助項(xiàng)目（50278077）;長安大學(xué)自然科學(xué)青年基金資助項(xiàng)目（04Q01）。