CS外墙挂板节点区域竖向承载能力试验及有限元分析  

Experiment and finite element analysis of joint vertical bearing capacity of concrete sandwich exterior cladding panels

作　　者：常铭昊 晋强[1,3] 马小永 朱琳 胡荻[1,3] CHANG Minghao;JIN Qiang;MA Xiaoyong;ZHU Lin;HU Di(College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China;Xinjiang Uygur Autonomous Region Metallurgical Construction Co. Ltd, Urumqi, Xinjiang 830000, China;Xinjiang BIM and Assembly Engineering Technology Research Center, Urumqi, Xinjiang 830052, China)

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]新疆冶金建设(集团)有限责任公司,新疆乌鲁木齐830000 [3]新疆BIM及装配式工程技术研究中心,新疆乌鲁木齐830052

出　　处：《山东科技大学学报（自然科学版）》2022年第1期75-85,共11页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：乌鲁木齐市建设委员会研究项目(WZCG108001C238)。

摘　　要：为研究CS外墙挂板承重节点的竖向承载能力,针对外墙挂板承重节点区域设计4种方案并对其内页板在竖向均布荷载作用下的承载能力进行试验研究,采集并绘制外墙挂板试件的荷载-位移曲线和荷载-应变曲线,通过有限元模拟与试验结果相印证并进行参数化扩展分析。结果表明:试件在竖向偏心荷载作用下产生脆性破坏;外墙挂板应力主要集中在节点周边区域,导致混凝土开裂、破碎。本研究所设计制作的3种节点加固方法均可有效提升CS外墙挂板的承载能力,采用双层钢丝网架或钢筋加固的方式均可有效提升试件的承载能力,内页板混凝土面层的厚度对试件承载能力有显著影响。In order to study the vertical load-bearing capacity of the load-bearing joints of the concrete sandwich exterior cladding panels,four different schemes were designed for the load-bearing joints of the exterior cladding panels and an experimental study was made on the bearing capacity of the inner slabs under uniform vertical loads.The load-displacement and load-strain data of the specimens were collected and their respective curves were drawn.The finite element simulation was then used to verify the test results and the parameterized extension analysis was further made.The results show that all the specimens undergo brittle failure under the action of vertical eccentric loading and that the stress of the exterior cladding panels mainly concentrates on the area around the joints,causing the crack and breakup of the concrete.All the three proposed joint reinforcement methods can greatly increase the vertical bearing capacity of the exterior cladding panels.The double-layer steel mesh frame or steel reinforcement method can effectively improve the load-bearing capacity of the specimens and the thickness of the inner slab has a significant impact on the load-bearing capacity of the specimens.

关 键 词：外墙挂板 节点区域 CS板 竖向承载能力 有限元分析 

分 类 号：TU398[建筑科学—结构工程]