Chen Shenggang, Peng Xiaotong, Lin Chen, Zhang Yingying, Hu Hexiang, He Zhengjian
Jiangsu Key Laboratory Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou 211116, China.
School of Civil Engineering and Architecture, University of Jinan, Ji'nan 250022, China.
Materials (Basel). 2022 Aug 19;15(16):5737. doi: 10.3390/ma15165737.
Prefabricated composite shear walls (PCSW) consisting of steel plate clapped by single-sided or double-sided prefabricated reinforced concrete (RC) panels have enormous advantages for application as lateral-resisting structures in prefabricated high-rising residential buildings. In this paper, three 1/3-scaled PCSW were manufactured and tested to investigate the seismic performance of PCSW with single-sided or double-sided prefabricated RC panels. The experimental results, including hysteretic and skeleton curves, stiffness and strength degradation, ductility, energy dissipation capability and steel frame effects, were interpreted, compared and summarized. In spite of the RC panels being the same thickness, PCSW with double-sided RC panels had the most outstanding lateral-resisting properties: the highest yield strength and bearing capacity, adequate ductility, plumper and stable hysteresis loop and excellent energy absorption capacity. Finally, a simple predicting equation with a modification coefficient to calculate the effects of boundary steel frame was summarized and proposed to calculate the lateral yield load of the PCSW. All efforts were made to give reliable technical references for the design and construction of the PCSW.
由单面或双面预制钢筋混凝土(RC)面板包覆钢板组成的预制复合剪力墙(PCSW)作为预制高层住宅建筑的抗侧力结构具有巨大的应用优势。本文制作并测试了三个1/3比例的PCSW,以研究单面或双面预制RC面板PCSW的抗震性能。对试验结果进行了解释、比较和总结,包括滞回曲线和骨架曲线、刚度和强度退化、延性、能量耗散能力和钢框架效应。尽管RC面板厚度相同,但双面RC面板的PCSW具有最突出的抗侧力性能:屈服强度和承载力最高、延性适中、滞回环丰满稳定且能量吸收能力优异。最后,总结并提出了一个带有修正系数的简单预测方程,用于计算边界钢框架的影响,以计算PCSW的侧向屈服荷载。所有努力都是为了给PCSW的设计和施工提供可靠的技术参考。