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

周建龍，江曉峰，王 建

（華東建筑設(shè)計(jì)研究院有限公司，上海 200002）

 

［摘要］基于工程實(shí)例進(jìn)行了結(jié)構(gòu)大震彈塑性時(shí)程分析，并對(duì)地震輸入結(jié)構(gòu)的總能量、結(jié)構(gòu)構(gòu)件滯回耗能、阻尼器耗能以及系統(tǒng)阻尼耗能進(jìn)行分析。三個(gè)工程實(shí)例為無減震設(shè)計(jì)的某超高層建筑、采用防屈曲支撐設(shè)計(jì)的某大跨鋼結(jié)構(gòu)和采用粘滯阻尼器減震設(shè)計(jì)的某復(fù)雜連體結(jié)構(gòu)。該研究方法不同于以往研究僅針對(duì)單自由度或簡單多自由度系統(tǒng)的理論分析。分析結(jié)果表明，地震輸入結(jié)構(gòu)的總能量受地震波特性影響非常顯著，要合理估計(jì)總輸入能量是困難的，但各部分耗散能量占總輸入能量的比值具有穩(wěn)定性。

［關(guān)鍵詞］能量分析；彈塑性時(shí)程分析；滯回耗能比；阻尼耗能比

中圖分類號(hào)：TU352文獻(xiàn)標(biāo)識(shí)碼：文章編號(hào)：1002-848X(2012)05-0150-05

 

Zhou Jianlong, Jiang Xiaofeng, Wang Jian

(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)

 

Abstract: Nonlinear time-history analyses were carried out for three engineering applications, and energy analyses were presented for total input energy due to earthquake, energy dissipation by structural components, damper devices and system damping. The engineering applications include one ultra-high-rise building without energy dissipation design, one large-span steel structure using buckling-resistant braces, and one complicated connected structure using viscous dampers. This research is different from previous theoretical analysis based on single or multiple degree of freedom system. The analysis results show that total input energy due to earthquake is sensitive to the characteristics of ground motion and it is difficult to accurately evaluate the total input energy, however, the ratio of energy dissipation by components or devices to total energy is stable.

Keywords: energy analysis; nonlinear time-history analysis; hysteresis energy ratio; damping energy ratio

作者簡介：周建龍，教授級(jí)高工，Email：jianlong_zhou@ecadi.com。

 

［1］HOUSNER G W. Behavior of structures during earthquake ［J］. Journal of the Engineering Mechanics Division, 1959, 85(4): 109-129.

［2］AKIYAMA H. Earthquake resistant limit state design for buildings ［M］. Tokyo: University of Tokyo Press, 1985.

［3］馬千里. 鋼筋混凝土框架結(jié)構(gòu)基于能量抗震設(shè)計(jì)方法研究［D］. 北京：清華大學(xué)，2009.

［4］FAJFAR P. Equivalent ductility factors taking into account low-cycle fatigue ［J］. Earthquake Engineering & Structural Dynamics, 1992, 21(9): 837-848.

［5］歐進(jìn)萍，何政，吳斌，等．鋼筋混凝土結(jié)構(gòu)基于地震損傷性能的設(shè)計(jì)［J］．地震工程與工程振動(dòng), 1999, 19(1): 21-30.

［6］RIDDELL R, GARCIA J E. Hysteretic energy spectrum and damage control ［J］. Earthquake Engineering & Structural Dynamics, 2001, 30(12): 1791-1816.

［7］陳永祁，龔思禮. 結(jié)構(gòu)在地震動(dòng)時(shí)延性和累積塑性耗能的雙重破壞準(zhǔn)則［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 1986（1）: 35-48.

［8］肖明葵,劉波,白紹良．抗震結(jié)構(gòu)總輸入能量及其影響因素分析［J］．重慶建筑大學(xué)學(xué)報(bào),1996, 18(2): 21-33.

［9］YE L P, OTANI S. Maximum seismic displacement of inelastic systems based on energy concept ［J］. Earthquake Engineering & Structural Dynamics, 1999, 28(12): 1483-1499.

［10］程光煜. 基于能量抗震設(shè)計(jì)方法及其在鋼支撐框架結(jié)構(gòu)中的應(yīng)用［D］. 北京：清華大學(xué), 2007.

［11］江曉峰，周健，蘇駿，等. 弱連體結(jié)構(gòu)抗震設(shè)計(jì)方法在虹橋綜合交通樞紐工程中的應(yīng)用［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 2010, 31(5):167-172.