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 中國(guó)航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120； 2 北京科技大學(xué)，北京 100083)
［摘要］以北京金融街F7/9 工程中廳空間張弦梁結(jié)構(gòu)為分析實(shí)例，重點(diǎn)分析結(jié)構(gòu)矢跨比、預(yù)應(yīng)力度對(duì)結(jié)構(gòu)靜力性能、整體穩(wěn)定性能的影響，分析表明矢跨比對(duì)結(jié)構(gòu)穩(wěn)定性能和結(jié)構(gòu)位移影響較大，而預(yù)應(yīng)力度影響較小，且隨著矢跨比增大，整體穩(wěn)定對(duì)預(yù)應(yīng)力敏感度降低。四種不同計(jì)算模型對(duì)比分析表明，屋面檁條的存在與否及其連接剛度對(duì)整體穩(wěn)定具有顯著影響，檁條和交叉索的設(shè)置大大提高了結(jié)構(gòu)整體穩(wěn)定性。最后通過罕遇地震作用下彈塑性時(shí)程分析，得出了結(jié)構(gòu)體系在大震下的響應(yīng)特性。
［關(guān)鍵詞］空間張弦梁；結(jié)構(gòu)矢跨比；預(yù)應(yīng)力度；幾何非線性；材料非線性；穩(wěn)定承載力
Design and research on structural system of spatial beam string structure
Wang Shu1, Guan Zhizhong1, Ge Jiaqi1, Liang Yishan2, Liang Haitong1(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120,China； 2 University of Sience and Technology Beijing,Beijing 100083,China)
Abstract:For the spatial beam string structure of Beijing Finance Center F7/9, the impact of the ratio of rise to span and the pre-stressing ratio on the structural static behavior and the structural overall stability is analyzed. The results show that the ratio of rise to span has an apparent impact of the structural overall stability and the structural displacement, while the prestressing ratio plays few impact. As the ratio of rise to span increases, the sensibility of the prestressing ratio on the overall stability drops. The existence of the purlin and its connection rigidity take an explicit effect on the overall stability, and the arrangement of the purlin and the diagonal cable largely raises the overall stability, by analyzing and comparing four different calculation models. The structural seismic response performance under rare earthquake is obtained by the elastic-plastic time-history analysis.
Keywords:spatial beam string structure; ratio of rise to span; prestressing ratio; geometric nonlinearity; material nonlinearity; overall stability
作者簡(jiǎn)介：王樹(1972-)，男，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:nwj1973@163.com。
參考文獻(xiàn)
［1］葛家琪，張國(guó)軍，等. 2008奧運(yùn)會(huì)大跨度鋼結(jié)構(gòu)整體穩(wěn)定性能分析研究［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 2007(6): 22-30.
［2］葛家琪,王樹,等. 河南藝術(shù)中心藝術(shù)墻共享大廳結(jié)構(gòu)體系穩(wěn)定性分析［J］. 建筑結(jié)構(gòu), 2008，38(12): 11-13.
［3］沈士釗, 陳昕.網(wǎng)殼結(jié)構(gòu)穩(wěn)定性［M］. 北京: 科學(xué)出版社, 1999.
［4］JGJ61—2003網(wǎng)殼結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國(guó)建筑工業(yè)出版社，2003.
［5］GB50017—2003鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2003.
［6］GB50011—2001建筑抗震設(shè)計(jì)規(guī)范(2008版)［S］.北京：中國(guó)建筑工業(yè)出版社，2008.
［7］陳紹蕃. 鋼結(jié)構(gòu)設(shè)計(jì)原理［M］. 北京: 科學(xué)出版社, 2001.
［8］JGJ 102—2003玻璃幕墻工程技術(shù)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2003.
［9］謝禮立，翟長(zhǎng)海.最不利設(shè)計(jì)地震動(dòng)研究［J］.地震學(xué)報(bào)，2003，25(3)：250-261.