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 北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045； 2 清華大學(xué)土木水利學(xué)院， 北京 100084；3 浙江大學(xué)空間結(jié)構(gòu)研究中心， 杭州 310058)

［摘要］ 國(guó)家速滑館地上鋼結(jié)構(gòu)采用正交索網(wǎng)、環(huán)桁架和幕墻斜拉索組成的空間結(jié)構(gòu)體系，各體系互相關(guān)聯(lián)，施工方法和順序?qū)ψ罱K完成的整體結(jié)構(gòu)性能、形態(tài)影響較大，各施工階段誤差影響不可忽略。針對(duì)該體系的張拉施工過(guò)程，進(jìn)行了理論分析和試驗(yàn)研究，明確了施工張拉過(guò)程索力偏差分布規(guī)律及相應(yīng)的張拉補(bǔ)償調(diào)整原則。根據(jù)實(shí)際施工過(guò)程中設(shè)備和現(xiàn)場(chǎng)狀況，制定了適用于該體系的施工張拉方案。通過(guò)索力監(jiān)測(cè)設(shè)備獲取了張拉過(guò)程中及完成后的索系預(yù)應(yīng)力，對(duì)比了實(shí)際工程中索力的偏差與理論分析及試驗(yàn)研究結(jié)論的差異。結(jié)果表明，理論和模型試驗(yàn)確定的施工方法可行，施工誤差在預(yù)期目標(biāo)范圍內(nèi)，整體誤差較小，滿(mǎn)足使用需求。 

［關(guān)鍵詞］國(guó)家速滑館；索網(wǎng)；斜拉索；施工誤差;預(yù)應(yīng)力偏差

中圖分類(lèi)號(hào)：TU323-4 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)19-0111-05

Research on the influence of construction error for prestress deviation in cable structure of National Speed Skating Oval 

WANG  Zhe 1,2,  ZHU  Zhongyi1,  WANG  Wei 1,3,  BAI  Guangbo1,  CHEN  Binlei1,  WANG  Yi1,  LIANG  Chenyu1,  XING  Juehui1 

(1 Beijing Institute of Architectural Design, Beijing 100045， China； 2 School of Civil Engineering, Tsinghua University, Beijing 100084， China； 3 Spatial Structure Research Center, Zhejiang University, Hangzhou 310058， China) 

Abstract: The upper steel structure of National Speed Skating Oval adopts a space structure system composed of orthogonal cable net, ring truss and curtain wall stay cable. Each system is interrelated. The construction method and sequence have a great influence on the overall structural performance and morphology of the final completion, and the error influence in each construction stage cannot be ignored. Theoretical analysis and experimental studies of the construction process of the system were carried out , and the distribution law of cable force deviation and the corresponding tension compensation adjustment principle in the construction tension process were clarified. According to the equipment and site conditions in the actual construction process, the construction tension scheme suitable for the system was formulated. The cable prestress during and after tension was obtained by cable force monitoring equipment, and the difference between the deviation of cable force in practical engineering and the theoretical analysis and experimental research conclusion was compared. The results show that the construction method determined by the theory and model test is feasible. The construction error is within the expected target range, and the overall error is small, which meets the use requirements. 

Keywords:National Speed Skating Oval； cable net； stay cable； construction error; prestress deviation

*國(guó)家重點(diǎn)研發(fā)計(jì)劃支撐項(xiàng)目(2019YFF0301501)，北京市西城區(qū)財(cái)政科技專(zhuān)項(xiàng)支撐項(xiàng)目(XCSTS-TI2021-29)。

 作者簡(jiǎn)介：王哲，博士，高級(jí)工程師，Email：wangzhe3@biad.com.cn； 通信作者：王瑋，博士，工程師，Email：11212035w@zju.edu.cn。