周天华, 王继琴, 吴函恒, 管宇, 王培森. 装配式钢框架-内填轻钢复合墙板结构抗震性能试验研究[J]. 工程力学, 2023, 40(7): 217-227. DOI: 10.6052/j.issn.1000-4750.2021.12.0946
引用本文: 周天华, 王继琴, 吴函恒, 管宇, 王培森. 装配式钢框架-内填轻钢复合墙板结构抗震性能试验研究[J]. 工程力学, 2023, 40(7): 217-227. DOI: 10.6052/j.issn.1000-4750.2021.12.0946
ZHOU Tian-hua, WANG Ji-qin, WU Han-heng, GUAN Yu, WANG Pei-sen. EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF FABRICATED STEEL FRAME-INFILLED LIGHTWEIGHT STEEL COMPOSITE WALL PANEL STRUCTURE[J]. Engineering Mechanics, 2023, 40(7): 217-227. DOI: 10.6052/j.issn.1000-4750.2021.12.0946
Citation: ZHOU Tian-hua, WANG Ji-qin, WU Han-heng, GUAN Yu, WANG Pei-sen. EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF FABRICATED STEEL FRAME-INFILLED LIGHTWEIGHT STEEL COMPOSITE WALL PANEL STRUCTURE[J]. Engineering Mechanics, 2023, 40(7): 217-227. DOI: 10.6052/j.issn.1000-4750.2021.12.0946

装配式钢框架-内填轻钢复合墙板结构抗震性能试验研究

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF FABRICATED STEEL FRAME-INFILLED LIGHTWEIGHT STEEL COMPOSITE WALL PANEL STRUCTURE

  • 摘要: 为适应多高层装配式住宅结构的发展需求,提出了一种新型装配式钢框架-内填轻钢复合墙板结构体系。对4个足尺钢框架-轻钢复合墙板试件进行了低周往复加载试验研究,分析了填料强度、龙骨规格、墙板开洞等因素对试件破坏模式、滞回性能、抗剪承载力、抗侧刚度、延性及耗能性能的影响,并对钢框架与轻钢复合墙板协同受力机制进行了分析。结果表明:钢框架与内填墙板协同工作性能良好;结构中墙板为剪切型破坏,最终以填料角部受压破坏、骨架与填料间黏结滑移失效、墙面板破坏及螺钉连接失效为主要破坏特征,钢框架未发生明显破坏,并对内填墙板具有良好约束作用;填料强度提高及立柱截面增大可提高结构的抗剪承载力、刚度及耗能性能,但延性降低;开设洞口使得墙板的抗剪承载力、初始刚度以及耗能性能均降低,但延性增大。加载初期,内填墙板承担约85%的水平荷载,加载后期,墙板逐渐退出工作,钢框架承担主要水平荷载和倾覆弯矩。

     

    Abstract: To adapt to the development of multi-storey and high-rise fabricated residential structure, a new fabricated steel frame filled with lightweight steel composite wall panel structure system was proposed. Four full-scale steel frame-infilled lightweight steel composite wall panel specimens were tested under low cyclic loading. The effects of filler strengths, stud sections, wall opening on the failure modes, hysteretic behavior, shear bearing capacity, lateral stiffness, ductility and energy dissipation performance of the specimens were analyzed, and the collaboration mechanism of steel frame and lightweight steel composite wall panel was studied. The results show that the steel frame works well with the infilled wall panel. The wall panel experiences shear failure, and the main failure characteristics are compression failure of the filler corners, bond-slip cracks between the skeleton and fillers, damage of the panel and screw connection failure. The steel frame has no obvious damage, which exhibits a good constraint effect on the infilled wall panel. The increase of the filler strength and stud section can improve the shear bearing capacity, stiffness and energy dissipation performance of the specimen, but the ductility is reduced. The opening reduces the shear bearing capacity, initial stiffness and energy dissipation performance of the wall panel, while the ductility increases. In the early loading stage, the wall panels bear 85% of the horizontal load. In the late loading stage, the wall panels gradually withdraw from work, and the steel frames bear the main horizontal load and overturning moment.

     

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