Study on lateral resistance of cold-formed corrugated steel plates with lightweight foam concrete composite walls

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL Thin-Walled Structures Pub Date : 2025-01-22 DOI:10.1016/j.tws.2025.112964

Yu Shi , Chengxiang Sun , Chang Gao , Jialin Liu , Xiong Peng

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Abstract

This study experimentally and numerically investigated the lateral resistance of cold-formed corrugated steel plates with lightweight foam concrete composite walls (CPLWs). The horizontal reversed cyclic loading tests were performed on a total of five walls, two CPLWs and three without concrete composite walls (CPWs). The influence of corrugated steel plate orientation, lightweight foam concrete, and connection type on the lateral resistance of the walls was investigated in terms of hysteresis curves, skeleton curves and characteristic values, stiffness degradation, cyclic bearing capacity degradation, and energy dissipation capacity. The results indicate that incorporating lightweight foam concrete enhanced the lateral resistance of the walls significantly. Vertical corrugated steel plates CPLWs exhibited superior lateral resistance than horizontal ones. Flange bolts could not increase the shear capacity or stiffness of the composite walls. Furthermore, after being developed and validated based on the experimental results, 38 finite element analysis (FEA) models were used in parametric studies to analyze the impact of parameters including the thickness of the frame and corrugated steel plates, lightweight foam concrete strength, and the perforation diameter of the corrugated steel plates on the lateral resistance of CPLWs. Overall, a new shear capacity formula was proposed by integrating the underlying mechanism of the walls with findings from both experimental tests and finite element models parametric analyses.

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本研究通过实验和数值计算研究了带有轻质泡沫混凝土复合墙体（CPLWs）的冷弯波纹钢板的抗侧能力。共对五面墙进行了水平反向循环加载试验，其中两面为 CPLW，三面为无混凝土复合墙（CPW）。试验从滞后曲线、骨架曲线和特征值、刚度退化、循环承载力退化和耗能能力等方面研究了波纹钢板方向、轻质泡沫混凝土和连接类型对墙体抗侧能力的影响。结果表明，加入轻质泡沫混凝土可显著增强墙体的抗侧能力。垂直波纹钢板 CPLW 的抗侧能力优于水平波纹钢板 CPLW。法兰螺栓无法提高复合墙体的抗剪能力或刚度。此外，在根据实验结果开发并验证了 38 个有限元分析模型后，在参数研究中使用这些模型分析了框架和波纹钢板厚度、轻质泡沫混凝土强度以及波纹钢板穿孔直径等参数对 CPLW 抗侧能力的影响。总之，通过将墙体的基本机理与实验测试和有限元模型参数分析的结果相结合，提出了一种新的剪切承载力公式。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.