北京光華路SOHO2采光頂雙向張弦結(jié)構(gòu)設(shè)計探討
朱禮敏，郭傳軍，楊曉蒙，劉楓，劉軍進
- 摘 要
-
朱禮敏，郭傳軍，楊曉蒙，劉楓，劉軍進（中國建筑科學(xué)研究院建筑結(jié)構(gòu)研究所， 北京 100013）［摘要］光華路SOHO2采光頂采用雙向張弦結(jié)構(gòu)，由于張弦桁架上弦桿采用了T形鋼梁，這種截面形式在國內(nèi)張弦桁架中尚屬首次使用，對張弦桁架的找形分析、T形梁放置方向和節(jié)點形式等需要考慮和解決的主要技術(shù)問題進行探討。為了既滿足建筑造型，又符合結(jié)構(gòu)受力，同時保證加工制作的經(jīng)濟性，建議T形梁水平放置、T形梁節(jié)點采用鑄鋼節(jié)點。本項目的施工張拉控制十分重要，施工前必須進行準(zhǔn)確的施工模擬計算，及時進行施工監(jiān)測，保證張拉過程的順利完成。［關(guān)鍵詞］張弦桁架； 找形分析； T形梁； 鑄鋼節(jié)點中圖分類號：TU3933文獻標(biāo)識碼：A文章編號：1002848X(2013)11008004Design on bidirectional truss string structure of skylight of SOHO2 on Guanghua road in BeijingZhu Limin, Guo Chuanjun, Yang Xiaomeng, Liu Feng, Liu Junjin(Institute of Building Structures, China Academy of Building Research, Beijing 100013, China)Abstract:Bi-directional truss string structure is adopted in the skylight of SOHO2 on Guanghua road in Beijing. As the top chords of the truss have Tshaped sections which appear firstly in truss string structures in China. The truss formfinding analysis, the layout direction and joint type of Tshaped beams are primary issues to consider and solve. To satisfy architectural requirements and structural demands as well as the economy, it is suggested that Tshaped beams should be placed horizontally and cast steel joints are preferred. The prestressed control of construction is very important. In order to finish the prestressed process successfully, the accurate construction simulation analysis is needed before construction and the timely monitoring is needed in construction.Keywords:truss string structure; formfinding analysis; Tshaped beam; cast steel joint作者簡介：朱禮敏，博士，副研究員，一級注冊結(jié)構(gòu)工程師，Email：zhulimin@cabrtech.com。參考文獻［1］GB 50009—2001建筑結(jié)構(gòu)荷載規(guī)范 ［S］.2006年版. 北京：中國建筑工業(yè)出版社，2006.［2］JGJ 257—2012索結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國建筑工業(yè)出版社，2012.［3］GB 50017—2003鋼結(jié)構(gòu)設(shè)計規(guī)范［S］.北京：中國計劃出版社，2003.
