(1 广东省建筑设计研究院有限公司, 广州 510010; 2 华南理工大学土木与交通学院, 广州 510641)

摘要: 南海区体育中心的罩棚平面为鱼钩状,平面尺寸为 220m×375m,属于超限大跨空间结构. 为保证细长罩棚的平面内刚度,结构采用交叉钢桁架. 为了解决抗侧需要强约束、消减温度效应需要释放约束的矛盾,内圈三叉柱、外圈 V 形柱采用弧形布置,在刚性屋盖的协同作用下,共同构成空间抗侧力体系;所有钢柱上下节点均铰接,外圈 V 形柱为间断式布置,利用高耸柱身的微转动、弱化屋盖边缘的波浪式变形来释放结构温差形变. 创造性地采用了多种新型构件:外观为伞状单脚独立铰接而实际利用了空间效应可抵抗水平力的“错位柱”,有较强抗侧能力又可释放扭转约束的“翼柱”,压、拔转动时基本共心的大抗拔力、大抗剪力、低约束力矩的万向球铰支座.

关键词: 南海区体育中心; 大跨空间结构; 交叉钢桁架; 温度效应; 错位柱; 翼柱; 行波效应; 万向球铰支座

中图分类号:TU393.3 文献标志码:A 文章编号:1002-848X(2022)21-0096-08

DOI:10.19701 / j.jzjg.GDAD2206

Structural design of Nanhai District Sports Center

LIAO Xuzhao1, LAO Zhiyuan1, LUO Chiyu1, TAN He1, WANG Junjie1,LI Kaiping1, LAI Hongli1, SHI Kairong2

(1 Guangdong Architectural Design & Research Institute Co. , Ltd., Guangzhou 510010, China;2 School of Civil Engineering & Transportation, South China University of Technology, Guangzhou 510641, China)

Abstract: The canopy of the Nanhai District Sports Center has a fishhook shape, with a plane size of 220m×375m, whichbelongs to the out-of-code large-span spatial structure. In order to ensure the in-plane stiffness of the slender canopy, thestructure adopts the cross inverted steel truss. To solve the contradiction that strong constraint is needed for lateralresistance and constraint release is needed to reduce temperature effect, the inner ring trigeminal column and outer ring V-shaped column are arranged in arc-shaped shape. Under the synergistic effect of rigid roof, the spatial lateral forceresistance system is formed together. The upper and lower joints of all steel columns are hinged, and the V-shaped columnsof the outer ring are arranged in a discontinuous manner. The micro-rotation of the towering column and the weakening ofthe wave deformation of the roof edge are used to release the structural temperature difference deformation. A variety of newartifacts are creatively used, including a malposition column that appears to be an umbrella shaped single foot independenthinged but actually uses spatial effects to resist horizontal forces, wing column with strong lateral resistance and releasetorsion constraint, as well as the universal spherical hinged support with large pull-out force, large shear resistance and lowconstraint moment which is basically coaxial during compression and pulling rotation

Keywords:Nanhai District Sports Center; large-span spatial structure; cross inverted steel truss; temperature effect;malposition column; wing column; traveling wave effect; universal spherical hinged support

∗广东省现代土木工程技术重点实验室资助项目(2021B1212040003).

第一作者:廖旭钊,硕士,教授级高级工程师,一级结构注册工程师,主要从事复杂结构和空间结构研究,Email:715128129@qq. com.

[引用本文] 廖旭钊,劳智源,罗赤宇,等. 南海区体育中心结构设计[ J]. 建筑结构,2022,52(21):96-103. LIAOXuzhao,LAO Zhiyuan,LUO Chiyu,et al. Structural design of Nanhai District Sports Center[J]. Building Structure,2022,52(21):96-103.