(1 上海建筑设计研究院有限公司， 上海 200041； 2 上海建筑空间结构工程技术研究中心， 上海 200041)

摘要: 太原植物园温室建筑造型呈“贝壳”形状，其中 1#温室最大跨度为 89. 5m，最大高度 29. 5m，采用双向叠放胶合木梁形成网壳结构体系，在胶合木梁下部设置双向拉索，拉索和胶合木梁之间通过倒四角锥拉杆形成整个温室结构体系。 提出了新型“Z”形木梁拼接节点和木梁叠放节点，可有效避免双向木梁在节点区被打断造成刚度削弱和连接困难，同时也满足了建筑效果的需求，该节点的设计保证了胶合木网壳结构体系的成立。 进一步研究了倒四角锥拉杆节点及安装方法，可有效避免现场张拉索网的难题，并给出了一种索网结构的张紧安装方法。 通过控制索的初始预应力来提高结构整体刚度和稳定性，采用几何非线性方法对结构进行各工况计算，并进行了特征值分析和极限承载力分析，验证了新型结构体系的可靠性，对拓展国内大跨度胶合木建筑的发展具有重要意义。

关键词: 太原植物园； 大跨度胶合木网壳结构； 木梁拼接节点； 倒四角锥拉杆节点

中图分类号:TU393. 3 文献标志码:A 文章编号:1002￣848X(2022)04￣0001￣05

DOI:10. 19701 / j.jzjg.JG21031

Research on key technologies of large￣span glued laminated timber reticulated shell structure designin Taiyuan Botanical Garden

JIA Shuizhong1，2

(1 Shanghai Institute of Architectural Design and Research， Shanghai 200041， China；2 Shanghai Engineering Research Center of Spatial Structure， Shanghai 200041， China)

Abstract: The greenhouse building model in Taiyuan Botanical Garden is shaped like a " shell" . The 1# greenhouse has amaximum span of 89. 5m and a maximum height of 29. 5m. Two￣way laminated glulam beams are used to form a reticulatedshell structure system. Two￣way cables are set at the lower part of the glulam beam. The whole greenhouse structure systemis formed between the cables and the glulam beam through inverted four corner cone pull rods. A new " Z" shaped woodbeam splicing joint and wood beam stacking joint were proposed， which can effectively avoid the stiffness weakening andconnection difficulties caused by the interruption of two￣way glulam beams in the joint area， and also meets the needs ofarchitectural effects. The design of the " Z" shaped wood beam splicing joint ensures the establishment of the gluedlaminated timber reticulated shell structure system. The inverted four corner cone pull rod joint and its installation methodwas further researched， which can effectively avoid the problem of tensioning the cable net on site， and a tensioninginstallation method of the cable net structure was given. By controlling the initial prestress of the cable to improve the overallstiffness and stability of the structure， the geometric nonlinear method was used to calculate the working conditions of thestructure， and the eigenvalue analysis and ultimate bearing capacity analysis were carried out to verify the reliability of thenew structural system， which is of great significance to expand the development of long￣span glulam buildings in China.

Keywords:Taiyuan Botanical Garden； large￣span glued laminated timber reticulated shell structure； wood beam splicingjoint； inverted four corner cone pull rod joint

∗华建集团课题(17￣1 类￣0104￣结)。

第一作者:贾水钟，硕士，教授级高级工程师，主要从事建筑结构设计研究，Email: jiasz@ isaarchitecture.com。

[引用本文] 贾水钟. 太原植物园大跨胶合木网壳结构设计关键技术研究[J]. 建筑结构，2022，52(4):1￣5，62. JIAShuizhong. Research on key technologies of large￣span glued laminated timber reticulated shell structure design in TaiyuanBotanical Garden[J]. Building Structure，2022，52(4):1￣5，62.