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 北京交通大學(xué)，北京100044)

［摘要］河南藝術(shù)中心40m高懸臂玻璃藝術(shù)墻采用了“單層索網(wǎng)次結(jié)構(gòu)-平面鋼管相貫桁架主體結(jié)構(gòu)”體系。首先研究確立了結(jié)構(gòu)整體大變形失穩(wěn)破壞極限狀態(tài)下體系強(qiáng)度的強(qiáng)屈比、體系變形的延性性能，對(duì)整體結(jié)構(gòu)進(jìn)行了考慮幾何非線性、材料彈塑性、初始幾何缺陷的穩(wěn)定分析與設(shè)計(jì)。重點(diǎn)進(jìn)行了基于延性性能的結(jié)構(gòu)抗震性能研究，對(duì)整體結(jié)構(gòu)進(jìn)行大震彈塑性時(shí)程分析，對(duì)結(jié)構(gòu)自振特性、構(gòu)件應(yīng)力比、結(jié)構(gòu)位移、塑性鉸分布與損壞程度等性能進(jìn)行深入量化分析與設(shè)計(jì)。通過(guò)上述系列分析研究，實(shí)現(xiàn)了抗震安全及整體穩(wěn)定安全的雙重延性性能化設(shè)計(jì)目標(biāo)。

［關(guān)鍵詞］延性性能；幾何非線性；體系穩(wěn)定屈曲分析；彈塑性時(shí)程分析

中圖分類號(hào)：TU318.82，TU398.9文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)02-0031-06Ductility security performance of the cable-net pipe truss in Henan Provincial Art Centre

Ge Jiaqi1, Wang Yongning¹, Zhang Ling¹, Wang Shu¹, Huang Jiyang¹, Chen Dan²

(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China;

2 Beijing Jiaotong University, Beijing 100044, China)

Abstract:The cantilevered art wall with 40m height at Henan Provincial Art Centre, employs a structural system of the single layer cable-net combined with pipe truss. The structural overall stability analysis was conducted considering geometric nonlinearity, elastic-plastic material, and initial geometric imperfection respectively, to identify the yield ratio and the structural ductile deformation under the buckling collapse limit state.  The structural seismic performance was studied on the basis of the ductility behavior by performing the elastic-plastic time-history analysis. The numerical analysis and design were conducted for the structure modal, the member stress ratio, the structure displacement, the plastic hinge distribution, and the collapse level. Through the above analysis, the objective of the double ductility performance design of the earthquake-resistance security and the overall stability security was realized.

Keywords:ductility performance; geometric nonlinearity; buckling analysis of overall stability; elastic-plastic time-history analysis

作者簡(jiǎn)介：葛家琪，研究員，一級(jí)注冊(cè)結(jié)構(gòu)工程師，結(jié)構(gòu)總工程師，Email:capdi.gssd@vip.163.com。

參考文獻(xiàn)

［1］葛家琪，王樹(shù)，楊霄，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.

［2］葛家琪，張國(guó)軍，王樹(shù)，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), 2007，28(6): 22-30.

［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)計(jì)劃出版社，2003.

［6］GB50011—2001建筑抗震設(shè)計(jì)規(guī)范［S］.2008年版.北京：中國(guó)建筑工業(yè)出版社，2008.