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

（華東建筑設(shè)計(jì)研究院有限公司，上海 200002）
［摘要］大連期貨大廈的結(jié)構(gòu)設(shè)計(jì)中采用了鋼梁開大洞的設(shè)計(jì)方案，洞口尺寸超過了規(guī)范的限值。為了安全合理地實(shí)施該設(shè)計(jì)方案，找出鋼梁開洞后的受力特性，采用梁開洞較成熟的空腹桁架理論來分析鋼梁開洞后對(duì)梁承載力的影響，得出了鋼梁開洞處應(yīng)力的解析解，并歸納出簡(jiǎn)單受力狀態(tài)下鋼梁開矩形洞口的不利位置，開洞位置變化對(duì)梁承載力影響的規(guī)律，洞口尺寸對(duì)鋼梁承載力的影響。分析成果在實(shí)際工程設(shè)計(jì)中得到了成功應(yīng)用。
［關(guān)鍵詞］鋼梁；開大洞；空腹桁架理論；承載力；規(guī)律
Analysis on bearing capacity of steel beam with large web opening by virtue of vierendeel truss theory
Wang Jingyu, Lu Daoyuan, Jiang Bei（East China Architectural Design & Research Institute，Shanghai 200002，China）
Abstract:The plan of steel beam with large web opening was confirmed in the process of Dalian commodity mansion′s design.But the hatch′s size in steel beam goes beyond the limits of criterion. In order to  carry this plan into effect safely and rationally, and find out the steel beam′s carrying capacity with hatch, by virtue of the vierendeel truss theory for steel beam with large web opening, how does the hatch affect steel beam′s carrying capacity was tried to fond out.And in this process,stress of steel beam with large web opening was concluded by expressions. The worst position of web opening was confirmed. The rules how does the variety of web opening position affect steel beam′s carrying capacity and how does the dimension of web opening affect steel beam were concluded. In the design process, the object was accomplished rationally by the analysis production.
Keywords:steel beam; large web opening; vierendeel truss theory, carrying capacity; order
作者簡(jiǎn)介：王經(jīng)雨(1976-)，碩士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:wjy8696@ecadi.com。
參考文獻(xiàn)
［1］陳富生，邱國(guó)樺，范重. 高層建筑鋼結(jié)構(gòu)設(shè)計(jì)（第二版）［M］.北京：中國(guó)建筑工業(yè)出版社，2004.
［2］01SG519多、高層民用建筑鋼結(jié)構(gòu)節(jié)點(diǎn)構(gòu)造詳圖［S］.北京：中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究所出版，2001.
［3］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.
［4］童樂為，陳以一，宋濤煒.大連期貨廣場(chǎng)大開孔鋼梁研究報(bào)告［R］.同濟(jì)大學(xué)土木工程學(xué)院鋼與輕型結(jié)構(gòu)研究室，2005.
［5］JGJ 99—98高層民用建筑鋼結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國(guó)建筑工業(yè)出版社，1998.
［6］童樂為，宋濤煒，江蓓，等.大尺度開孔鋼梁性能的試驗(yàn)研究和數(shù)值分析［J］.同濟(jì)大學(xué)學(xué)報(bào)自然科學(xué)版，2008，8.