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（中國建筑西南設計研究院有限公司， 成都 610042）
［摘要］成都鳳凰山專業(yè)足球場屋蓋采用大開口索穹頂結構，覆蓋材料為ETFE膜材，主體結構采用鋼筋混凝土框架-剪力墻結構，對重要豎向構件采用型鋼混凝土進行加強。針對整體結構和構件的重要性，制定了合理的抗震性能目標，通過細致的抗震性能化設計使結構達到預期的抗震性能目標。對大開口索穹頂結構的構成、主要構件截面尺寸及其強度和剛度做了介紹，采用有限元法分析設計了典型、復雜的大開口索穹頂節(jié)點，確保了節(jié)點安全合理。對大開口索穹頂結構進行了抗連續(xù)倒塌分析，確保在偶然工況下結構具備抗連續(xù)倒塌的能力。通過合理設計，大開口索穹頂結構具有輕盈高效跨越大空間的性能優(yōu)勢，同時具備良好的抗震性能和抗連續(xù)倒塌能力。
［關鍵詞］專業(yè)足球場； 大開口索穹頂； 性能化設計； 節(jié)點設計； 抗連續(xù)倒塌
中圖分類號：TU398-7文獻標識碼：A文章編號：1002-848X(2020)19-0015-07
Structural design of Chengdu Fenghuangshan professional football field
FENG Yuan, WANG Liwei, ZHANG Yan, QIU Tian, YANG Wen, XIANG Xin′an, LIU Xiang, LIAO Shuying
(China Southwest Architectural Design and Research Institute Co.， Ltd., Chengdu 610042, China)
Abstract:Large opening cable dome structure is adopted in the roof of Chengdu Fenghuangshan professional football field, and the covering material is ETFE membrane. The main structure is reinforced concrete frame-shear wall structure, and the important vertical components adopt steel-reinforced concrete (SRC) components. In view of the importance of the whole structure and components and their the reasonable seismic performance objectives were formulated, and the expected seismic performance objectives were achieved through detailed performance-based seismic design. The composition of cable dome structure, section size of main components and their strength and stiffness were introduced, and typical and complex cable dome joints were analyzed and designed by using finite element method to ensure the safety and rationality of joints. The anti-progressive collapse analysis of cable dome structure was conducted to ensure that the structure had the ability to resist progressive collapse under accidental conditions. Through reasonable design, the cable dome structure had the performance advantages of lightweight, high efficiency and spanning large space, and has good seismic performance and anti-progressive collapse ability.
Keywords:professional football field; large opening cable dome; performance-based design; joint design; anti-progressive collapse
*國家自然科學基金資助(51678550)，中國建筑股份有限公司科技研發(fā)基金資助(CSCEC-2015-Z-43)。
作者簡介：馮遠，教授級高級工程師，Email:xnyfy@vip.163.com； 通信作者：張彥，碩士，高級工程師，12489411@qq.com。
