太原植物园大跨胶合木网壳木梁叠放连接节点刚度取值方法研究
引用文献：
李瑞雄. 太原植物园大跨胶合木网壳木梁叠放连接节点刚度取值方法研究[J]. 建筑结构，2022，48（04）：11-16，30.
LI Ruixiong. Research on the stiffness value method of the stacked connection joints of large-span glued laminated timber reticulated shell wood beams in Taiyuan Botanical Garden[J]. Building Structure，2022,48（04）：11-16，30.
摘要：以太原植物园为工程背景，结构采用了胶合木网壳-拉索新型结构体系，网壳采用双向叠放木梁，沿主向间隔两跨在上部木梁对应位置增设一根加强木梁，形成双向三层叠放木梁新型节点。该新型节点采用钢销和高强螺钉进行连接，受力复杂，需要进行足尺节点试验。根据受力特点分别设计了沿主向木梁加载和沿次向木梁加载试验方案，分别对节点进行了主、次向加载试验，得到节点抗剪承载力和位移关系曲线，结合主、次向加载节点破坏现象分析了节点受力特征。结果表明沿主、次向加载节点延性较好，具有较大的延性变形能力。进一步利用有限元软件MIDAS和试验结果数据计算得到节点的剪切刚度。
关键词：太原植物园，大跨胶合木网壳，木梁叠放连接节点，抗剪承载力，破坏特征，剪切刚度
基金：华建集团课题(17-1类-0104-结)。
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参考文献[1] YASUMURA M,KOBAYASHI K,OKABE M,et al.Full-scale tests and numerical analysis of low-rise CLT structures under lateral loading[J].Journal of Structural Engineering,2016,142(4):E4015007.
[2] GAVRIC I,FRAGIACOMO M,CECCOTTI A.Cyclic behaviour of typical metal connectors for cross laminated (CLT )structures[J].Materials and Structures,2015,48 (6):1841-1857.
[3] 何敏娟，赵艺，高承勇，等.螺栓排数和自攻螺钉对木梁柱节点抗侧力性能的影响[J].同济大学学报(自然科学版),2015,43(6):845-852.
[4] 刘慧芬，何敏娟.自攻螺钉参数设置对胶合木梁柱节点受力性能的影响[J].建筑结构学报，2015,36(7):148-156.
[5] 李征，王康郦，何敏娟.预应力胶合木梁柱节点的抗侧力性能研究[J].南京工业大学学报(自然科学版),2016,38 (5 ):28-33.
[6] 李亚明，李瑞雄，贾水钟，等.太原植物园胶合木半搭接节点受力性能试验研究[J].建筑技术，2020,51(3):299-302.
[7] 何敏娟，倪淑娜，马人乐，等.木结构钢填板预应力套管螺栓连接性能试验[J].同济大学学报(自然科学版),2013,41(9):1353-1358.
[8] LI HONGMIN,FRANK LAM,QIU HONGXING.Flexural performance of spliced beam connected and reinforced with self-tapping wood screws[J].Engineering Structures,2017,152:523-534.
[9] 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.
[10] 胶合木结构技术规范：GB/T 50708—2012 [S].北京：中国建筑工业出版社，2012.
[11] 木结构设计标准：GB/T 50005—2017 [S].北京：中国建筑工业出版社，2018.
[12] 贾水钟，李瑞雄，李亚明.太原植物园进口胶合木材性试验及应用研究[J].建筑结构，2022,52(4):17-21.
[2] GAVRIC I,FRAGIACOMO M,CECCOTTI A.Cyclic behaviour of typical metal connectors for cross laminated (CLT )structures[J].Materials and Structures,2015,48 (6):1841-1857.
[3] 何敏娟，赵艺，高承勇，等.螺栓排数和自攻螺钉对木梁柱节点抗侧力性能的影响[J].同济大学学报(自然科学版),2015,43(6):845-852.
[4] 刘慧芬，何敏娟.自攻螺钉参数设置对胶合木梁柱节点受力性能的影响[J].建筑结构学报，2015,36(7):148-156.
[5] 李征，王康郦，何敏娟.预应力胶合木梁柱节点的抗侧力性能研究[J].南京工业大学学报(自然科学版),2016,38 (5 ):28-33.
[6] 李亚明，李瑞雄，贾水钟，等.太原植物园胶合木半搭接节点受力性能试验研究[J].建筑技术，2020,51(3):299-302.
[7] 何敏娟，倪淑娜，马人乐，等.木结构钢填板预应力套管螺栓连接性能试验[J].同济大学学报(自然科学版),2013,41(9):1353-1358.
[8] LI HONGMIN,FRANK LAM,QIU HONGXING.Flexural performance of spliced beam connected and reinforced with self-tapping wood screws[J].Engineering Structures,2017,152:523-534.
[9] 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.
[10] 胶合木结构技术规范：GB/T 50708—2012 [S].北京：中国建筑工业出版社，2012.
[11] 木结构设计标准：GB/T 50005—2017 [S].北京：中国建筑工业出版社，2018.
[12] 贾水钟，李瑞雄，李亚明.太原植物园进口胶合木材性试验及应用研究[J].建筑结构，2022,52(4):17-21.
Research on the stiffness value method of the stacked connection joints of large-span glued laminated timber reticulated shell wood beams in Taiyuan Botanical Garden
Abstract: Taking the Taiyuan Botanical Garden as the engineering background, the structure adopts a new structural system of glued laminated timber reticulated shell-cable. The reticulated shell adopts two-way stacked wood beams, and a reinforced wood beam is added at the corresponding position of the upper wood beam at two spans along the main direction to form a new type of two-way three-layer stacked wood beam joint. The new type of joint is connected by steel pins and high-strength screws, and the force is complex, so a full-scale joint test is required. According to the force characteristics, the loading test schemes of the wood beam along the primary direction and the wood beam along the secondary direction were designed respectively. The primary and secondary loading tests were carried out on the joints respectively, and the shear bearing capacity and displacement curve of the joints were obtained. Combined with the failure phenomenon of the joint along the primary and secondary loading joints, the force characteristics of the joints were analyzed. The results show that the ductility of the joint along the primary and secondary loading joints is better, and has great ductility deformation ability. Furthermore, the shear stiffness of the joint was calculated by using the finite element software MIDAS and the test data.
Keywords: Taiyuan Botanical Garden; large-span glued laminated timber reticulated shell; wood beam stacking connection joint; shear capacity; failure characteristics; shear stiffness
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