摘要
设计了一种内嵌式墙板柔性连接方式,对在这种柔性连接下的6块全轻页岩陶粒预制墙板进行了抗弯承载力试验研究,主要研究参数为框架梁与预制墙板连接节点的位置、个数和墙板开窗洞情况。对墙板的荷载-挠度曲线、荷载-应变曲线和极限承载力进行了系统分析。结果表明:设计的柔性连接满足墙板承载力要求;墙板连接节点的位置和个数对墙板开裂荷载、挠度、极限抗弯承载力和破坏状态影响显著;开窗洞墙板由于配筋加密,刚度增强,削弱了开洞对墙板承载的不利影响。各墙板在正常使用极限荷载下均未破坏,挠度满足规范要求。
A flexible connection method of embedded wallboard was designed. The flexural bearing capacity of six full lightweight shale ceramsite prefabricated wallboard under this flexible connection was tested. The main parameters are the location and number of joints between frame beam and prefabricated wallboard and the openings of window in wallboard. The load-deflection curve,load-strain curve and ultimate bearing capacity of wallboard were systematically analyzed. The results show that the designed flexible connection meets the requirements of the bearing capacity of wallboard;the location and number of the joints of wallboard connections have significant effects on the cracking load,deflection,ultimate flexural bearing capacity and failure state of wallboard;because the reinforcement is dense and the stiffness is strengthened,the adverse effect of the opening of window on the bearing capacity of the wallboard is weakened. All wallboards are not destroyed under the normal ultimate load,and the deflection meets the requirements of the code.
作者
陈萌
李学稼
于秋波
钟祥伟
Chen Meng;Li Xuejia;Yu Qiubo;Zhong Xiangwei(School of Civil Engineering,Zhengzhou University,Zhengzhou 450000,China;Zhengzhou University Multi-functional Design and Research Academy Co.,Ltd.,Zhengzhou 450000,China)
出处
《建筑结构》
CSCD
北大核心
2019年第21期99-103,共5页
Building Structure
基金
2017年河南省墙改基金
关键词
全轻骨料混凝土
预制墙板
受弯性能
柔性连接
full lightweight aggregate concrete
prefabricated wallboard
flexural performance
flexible connection
