上海浦东足球场钢屋盖结构设计
引用文献：
徐晓明 陈伟 史炜洲 高峰 张士昌 潘钦 叶伟. 上海浦东足球场钢屋盖结构设计[J]. 建筑结构，2023，48（01）：36-42.
XU Xiaoming CHEN Wei SHI Weizhou GAO Feng ZHANG Shichang PAN Qin YE Wei. Structural design on steel roof of Shanghai Pudong Football Stadium[J]. Building Structure，2023,48（01）：36-42.
摘要：上海浦东足球场是国内外首个采用中置压环索承结构体系的足球场，将一般放置在柱顶的压力环向内移动到V形支撑上，形成空间的曲线的中置压环，解决了外置压环索承结构体系不能适应矩形建筑平面的问题。通过有效的找形分析，确定了内环和径向索的预应力，使压环在自重下几乎没有弯矩。通过物理风洞试验和数值风洞试验确定了结构的风荷载，并进行了双非线性整体稳定分析，分析结果表明安全系数满足规范要求。对径向梁进行了局部稳定分析，从考虑截面有效性和最大化利用钢材的角度来选择腹板壁厚。介绍了径向索与径向梁连接节点和索夹节点，以期为其他工程提供数据参考。在屋盖钢结构上布置健康监测系统，对其在施工和长期工作状态进行实时监测，结果表明，各个部位应力监测值与理论值相接近，位形与理论值基本相符，结构安全可靠。
关键词：上海浦东足球场；索承结构；中置压环；找形分析；非线性稳定分析；健康监测；
基金：华建集团科研项目(18-1类-0090-结)；上海建筑设计研究院有限公司科研项目(18-1类-0021-结)。
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参考文献[1] 上海浦东足球场项目超限高层建筑工程抗震设防专项审查论证报告[R].上海：上海建筑设计研究院有限公司，2018.
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[2] 徐晓明，张士昌，高峰，等.苏州奥体中心体育场钢屋盖结构设计[J].建筑结构，2019,49(23):1-6.
[3] 张士昌，徐晓明，史炜洲，等.苏州奥体中心体育场看台结构设计[J].建筑结构，2019,49(23):7-11.
[4] 刘海霞.内置压力环索承网格结构的力学性能及施工全过程分析研究[D].南京：东南大学，2020.
[5] ZHANG N,LUO B,LIU H,et al.Prestress self-equilibrium force-finding method for cable-supported grid structures considering zero-stress state form-finding and the construction process[J].Buildings,2022,12(749),1-18.
[6] ZHANG S C,XU X M,GAO F,et al.Experimental study on corrosion of galfan-coated full-locked coil ropes in a natatorium environment[J].Advances in Civil Engineering,2022,9777836:1-14.
[7] 钢结构设计标准：GB 50017—2017[S].北京：中国建筑工业出版社，2018.
[8] 空间网格结构技术规程：JGJ 7—2010[S].北京：中国建筑工业出版社，2010.
[9] 建筑抗震设计规范：GB 50011—2010[S].2016年版.北京：中国建筑工业出版社，2016.
[10] 张士昌，徐晓明，高峰.苏州奥体中心游泳馆钢屋盖结构设计[J].建筑结构，2019,49(23):15-20.
Structural design on steel roof of Shanghai Pudong Football Stadium
Abstract: Shanghai Pudong Football Stadium is the first football stadium to innovatively adopt a cable-supported structure system with an intermediate compression ring in the world. The compression ring generally placed on the top of the column is moved inward to the V-shaped support to become a curved intermediate compression ring of space, which solves the problem that the outer compression ring cable-support structure cannot adapt to the rectangular building plane. Through effective form-finding analysis, the prestress of the inner ring and radial cable was determined, so that the compression ring has almost no bending moment under its weight. Physical wind tunnel tests and numerical wind tunnel tests were carried out to determine the wind load of the structure, and the double nonlinear overall stability analysis was carried out which analysis result indicates that the safety factor meets the requirements of the code. The local stability analysis of the radial beam was carried out, and the web wall thickness was selected by considering the section's effectiveness and maximum utilization of steel. Connection nodes of radial cable and radial beam and cable clamp nodes were introduced in order to provide data reference for other projects. The health monitoring system was arranged on the steel structure of the roof to monitor its construction and long-term working state in real time. The results show that the stress monitoring value of each part is close to the theoretical value, the configuration is consistent with the theoretical value, and the structure is safe and reliable.
Keywords: Shanghai Pudong Football Stadium; cable-supported structure; intermediate compression ring; shape-finding analysis; nonlinear stability analysis; health monitoring
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