（1 北京建筑大学土木与交通工程学院， 北京  100044；  2 工程结构与新材料北京市高等学校工程研究中心， 北京 100044; 3 北京市建筑工程研究院有限责任公司， 北京 100039）

［摘要］海口五源河体育场屋盖结构为月牙形索桁架结构体系，外环直径约260m，索结构最高点相对标高为42.8m。结构具有拉索数量多、施工过程结构变形大、张拉力大的特点，故施工难度较大。为了制定行之有效的施工方案，使用有限元软件MIDAS/Gen，对提出的多种施工方法进行了详细的数值模拟分析，最终确定了“地面铺装拉索，整体提升后张拉径向索”的施工方法，在张拉成形过程中将支座设置为可滑状态。实测数据与有限元数值模拟数据吻合较好，验证了仿真计算的准确性，对同类工程具有参考意义。

［关键词］五源河体育场； 月牙形索桁架结构； 施工技术； 施工计算分析； 整体提升

中图分类号：TU393-3文献标识码：A文章编号：1002-848X(2020)09-0092-06

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Research on numerical simulation of construction process of crescent cable truss roof structure in Haikou Wuyuanhe Stadium

HOU Jingfeng1,2, ZHOU Chujun1,2, WANG Zeqiang3, CHEN Xinli3, YOU Deqing3

(1 School of Civil and Transport Engineering， Beijing University of Civil Engineering and Architecture， Beijing 100044， China; 2 Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material， Beijing 100044， China;  3 Beijing Building Construction Research Institute Co., Ltd., Beijing 100039, China)

Abstract:The roof structure of Haikou Wuyuanhe Stadium belongs to crescent cable truss structural system. The diameter of outer ring is about 260m, and the relative elevation of the highest point of the cable structure is 42.8m. The structure has the characteristics of large number of cables, large structural deformation and large tension force in the construction process, so it is difficult to construct. In order to formulate an effective construction plan, the finite element software MIDAS/Gen was used to carry out detailed numerical simulation analysis of various construction methods. Finally, the construction method of “paving cable on the ground, tensioning radial cable after integral lifting” was determined, and the support was set as slippery state in the process of tension forming. The measured data were in good agreement with the finite element simulation data, which verified the accuracy of the simulation calculation and had reference significance for similar projects.

Keywords:Wuyuanhe Stadium; crescent cable truss structure; construction technology; construction calculation and analysis； integral  lifting

作者简介：侯敬峰，博士，副教授，硕士生导师，Email: houjingfeng@ bucea.edu.cn。