喷涂保温材料冷弯薄壁型钢组合墙体抗震性能试验研究

发布时间：2018-01-05 19:19

本文关键词：喷涂保温材料冷弯薄壁型钢组合墙体抗震性能试验研究　出处：《建筑结构学报》2014年01期 　论文类型：期刊论文

【摘要】：喷涂保温材料冷弯薄壁型钢组合墙体是在冷弯薄壁型钢骨架区格内设置聚苯乙烯泡沫板,并在骨架外侧喷涂轻质保温材料制成。通过对1个冷弯薄壁型钢骨架试件和2个喷涂保温材料冷弯薄壁型钢组合墙体试件的低周反复加载试验,分析了试件的受力过程和破坏形态,研究了试件的滞回曲线、骨架曲线、承载能力、抗侧刚度以及延性等力学特征,并将试验结果与已有的两侧挂板冷弯薄壁型钢组合墙体的试验数据进行了对比分析。研究结果表明:冷弯薄壁型钢骨架的节点刚度较弱,承载能力较低,不宜单独作为抗侧力构件;与两侧挂板冷弯薄壁型钢组合墙体相比,轻质保温材料的连续喷涂使得组合墙体更具整体性,其承载能力和抗侧刚度显著增加,并具有良好的抗震性能。
[Abstract]:The composite wall of cold-formed thin-walled steel with sprayed thermal insulation material is set up polystyrene foam plate in the lattice of cold-formed thin-walled steel skeleton area. The low cycle repeated loading tests of one cold-formed thin-walled steel skeleton specimen and two cold-formed thin-walled steel composite wall specimens were carried out. The mechanical characteristics of the specimen such as hysteretic curve, skeleton curve, bearing capacity, lateral stiffness and ductility are studied. The test results are compared with the experimental data of cold-formed thin-walled steel composite wall. The results show that the joint stiffness of cold-formed thin-walled steel frame is weak and the bearing capacity is low. It is not suitable to be used as an anti-lateral force member alone. Compared with the cold-formed thin-walled composite wall with both sides of hanging plate, the continuous spraying of light heat preservation material makes the composite wall more integral, its bearing capacity and lateral stiffness increase significantly, and it has good seismic performance.
【作者单位】：西安建筑科技大学土木工程学院;广州固保系统建筑材料有限公司;
【基金】：住房和城乡建设部科学技术项目(2012-K2-17) 陕西省“13115”科技创新工程重大科技专项(2009ZDKG-66)
【分类号】：TU398;TU352.11
【正文快照】： 0前言冷弯薄壁型钢结构住宅体系作为木结构的替代品,在北美、欧洲、澳大利亚、日本等地已得到广泛应用。目前,冷弯薄壁型钢组合墙体普遍采用的构造方法是将冷弯薄壁型钢骨架和轻质墙面板(如定向刨花板、石膏板、加劲薄钢板等)通过自攻螺钉连接。文献[1-7]对该类墙体的抗震性能

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