（中国建筑西南设计研究院有限公司， 成都 610042）

［摘要］以乐山奥林匹克中心项目游泳馆比赛区屋盖为实例，采用3D3S及MIDAS Gen软件对56.7m跨度的张弦胶合木拱架结构在结构受力、结构变形及空间稳定等方面进行研究，并对胶合木结构半刚性拼接节点、胶合木结构防火设计等方面进行分析。研究结果表明，张弦胶合木拱架结构能充分发挥预应力拉索和胶合木结构各自的优点，具有优越的力学性能，能够较好地应用于大跨度空间结构中。

［关键词］乐山奥林匹克中心； 张弦胶合木拱架结构；  结构稳定；  半刚性节点；  木结构; 防火设计

中图分类号：TU366.3文献标识码：A文章编号：1002-848X(2020)19-0030-05

Research on application of tension string glulam arch structure in engineering

WU Xiaobin, CHEN Huan, YIN Jie, WANG Feng, LONG Weiguo

(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610042, China)

Abstract:Taking the roof of the swimming pool competition area of the Leshan Olympic Center project as an example, 3D3S and MIDAS Gen software were used to study the structural force, structural deformation and spatial stability of the 56.7m span glulam arch structure, and the semi-rigid splicing joints of the glulam structure and the fire protection design of the glulam structure  were analyzed. The results show that tension string glulam arch structure can take full advantage of pre-stressed steel cable and the glulam structure, and has extraordinary mechanical property, which can be better used in large-span space structures.

Keywords:Leshan Olympic Center; tension string glulam arch structure; structural stability; semi-rigid joint; wood structure;  fire protection design

作者简介：吴小宾，硕士，教授级高级工程师，Email：wumat@vip.sina.com；  通信作者：陈欢，学士，工程师，一级注册结构工程师，Email：263197493@qq.com。