摘要
为改进传统农居的抗震性能,本文提出适用于低层农居的纤维石膏基复合墙板轻钢框架结构。采用1∶4的缩尺比例设计了3榀单层单跨的轻钢框架,通过低周往复荷载试验,研究了纤维石膏基复合墙板轻钢框架的抗震性能和墙板的连接方式对轻钢框架抗震性能的影响。结果表明:纤维石膏基复合墙板具有良好的耐损伤能力和韧性,能够提高轻钢框架的抗侧刚度和耗能能力;柔性连接中,Z型连接件能够使墙板产生随动性,实现摩擦耗能;纤维石膏基复合墙板轻钢框架结构的抗震性能较好,能够应用于低层农居。研究结果对钢框架中抗侧力构件的发展以及墙板和钢框架连接方式的设计提供参考。
To improve the seismic performance of traditional rural dwellings,we propose a structure of lightweight steel frame with fiber gypsum-based composite wallboard.Three one-story and one-bay specimens were designed with a scale of 1∶4.We subjected the three specimens to a low-frequency cyclic loading test and studied the seismic behavior of fiber gypsum-infilled wall steel frame and the effects of the connection types of infilling wall on the seismic behavior of steel frame.The results indicate that the wallboard has good damaging resistance and toughness;the wallboard can also improve the lateral stiffness and energy dissipation capacity of lightweight steel frame.In flexible connections,the Z-type connector can make the wallboard follow the steel frame and achieve friction energy consumption.The structure can be used in low-rise rural dwellings because of the favorable seismic performance.The results can be used as a reference for further investigation of lateral force-resisting members and the design of connections of wallboard and steel frame.
作者
李晓东
康永康
宋子阳
吴长
LI Xiaodong;KANG Yongkang;SONG Ziyang;WU Chang(School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2020年第12期1797-1803,共7页
Journal of Harbin Engineering University
基金
国家自然科学基金项目(51968043)
国家重点研发计划(2019YFD1101004).
关键词
纤维石膏基复合墙板
轻钢框架
抗震性能
低周往复荷载试验
连接方式
破坏形态
抗侧刚度
低层农居
fiber gypsum-based composite wallboard
lightweight steel frame
seismic performance
low-frequency cyclic loading test
connection types
failure modes
lateral stiffness
low-rise rural dwelling
