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李幗昌， 邵文帥， 王占飛， 楊 陽
（沈陽建筑大學(xué)土木工程學(xué)院，沈陽110168）[摘要] 為了探明靜力彈塑性分析方法中，不同側(cè)向加載模式對超限高層結(jié)構(gòu)抗震性能的影響。以沈陽地區(qū)某超限高層為研究對象，進行多遇地震作用下的反應(yīng)譜分析和罕遇地震作用下的靜力彈塑性分析。在抗震分析中，建筑物的場地類別為Ⅱ類場地，抗震設(shè)防烈度為7度(0.1g)。分析時，在建筑物的x方向和Y方向分別施加了三種加載模式的橫向力，即層剪力加載模式、等加速度加載模式和振型加載模式。結(jié)果表明在三種不同加載方式下該建筑物的性能點、塑性鉸分布以及彈塑性層間位移角有一定的差別，但在三種加載方式下，結(jié)構(gòu)均滿足抗震設(shè)防要求。
[關(guān)鍵詞] 超限高層；抗震性能；靜力彈塑性分析
中圖分類號：TU973 文獻標(biāo)識碼：A 文章編號：1002-848X(2012) S2-0168-04Pushover analysis of an out-of-code high-rise building based on different types of loading modes
Li Guochang, Shao Wenshuai, Wang Zhanfei, Yang Yang
( School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China)Abstract: In order to verify the effects of different loading modes on the seismic performance of the out-of-code high-rise building according to Pushover analysis method, the response spectrum analysis under the frequent earthquake and the static elasto-plastic analysis under the rare earthquake on a certain out-of-code lugh-rise building in Shenyang were performed. In the process of analysis, the category of the construction is the class II and the seismic fortification intensity is 7 degrees (0. 1g). Three different types of the loading modes, namely, the story shear, uruform acceleration and vibration mode, were exerted along the direction X and Y, in the construction. The results show that, under the three loading modes, the performance point, the distribution of the plastic lunge and layer displacement angle of the structure are different, but structure meets the requirements for seismic resistance.
Keywords: out-of-code high-rise buildings; the seismic performance; Pushover analysis
