沙漠砂混凝土框架结构的抗震性能有限元分析  

Seismic performance of finite element analysis for desert sand concrete frame structure

作　　者：张振豪 李志强[1] 王尧鸿[2] 董伟 ZHANG Zhenhao;LI Zhiqiang;WANG Yaohong;DONG Wei(College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi,Xinjiang 832003,China;School of Civil Engineering,Inner Mongolia University of Technology,Hohhot,Inner Mongolia 010051,China;College of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia 014010,China)

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003 [2]内蒙古工业大学土木工程学院,内蒙古呼和浩特010051 [3]内蒙古科技大学土木工程学院,内蒙古包头014010

出　　处：《石河子大学学报（自然科学版）》2023年第6期684-690,共7页Journal of Shihezi University(Natural Science)

基　　金：国家自然科学基金(52268034、51668053);新疆生产建设兵团科技创新人才计划(2021CB043)。

摘　　要：为了研究沙漠砂混凝土框架结构的抗震性能及破坏机理,基于ABAQUS有限元软件建立了9榀二层平面框架模型,研究了材料类型、混凝土楼板、配箍率和轴压比对沙漠砂混凝土框架抗震性能的作用规律。结果表明:沙漠砂混凝土框架的承载能力、初始刚度和屈服后承载能力余量均与普通砂混凝土框架相接近;与不带板的沙漠砂混凝土框架相比,带板的耗能提高近20%,承载力提高近6%;轴压比由0.2上升至0.6,试件的变形能力储备降低近15%;配箍率增加1.23%,结构的屈服载荷增长的幅度降低约1.5%,极限载荷增长的幅度降低约2%。In order to investigate the seismic performance and failure mechanism of the desert sand concrete frame structure,9 two-story planar frame model based on ABAQUS finite element software was established to study the effects of material type,concrete floor slab,stirrup ratio and axial compression ratio on the seismic performance of desert sand concrete frames.The results showed that the bearing capacity,initial stiffness and post-yield bearing capacity margin of desert sand concrete frame were similar to those of ordinary sand concrete frame;compared with desert sand concrete frame without slab,the energy dissipation increased by about 20%and the bearing capacity increased by about 6%;when the axial compressive ratio increases from 0.2 to 0.6,the deformation capacity of the specimen decreased by nearly 15%;when the stirrup ratio increased by 1.23%,the yield load of the structure increased by about 1.5%,and the ultimate load growth decreased by about 2%.

关 键 词：沙漠砂混凝土 框架 抗震性能 轴压比 配箍率 

分 类 号：TU375[建筑科学—结构工程]