摘要
为研究混凝土强度对中空GFRP管-混凝土-钢管组合梁力学性能的影响规律,基于有限元软件ABAQUS,分别对混凝土强度等级为C60、C65、C70、C75、C80的构件进行数值模拟,并将得到的试验数据进行对比分析.研究结果表明:混凝土强度越高,组合梁的极限承载力越高,承载力增大的幅度也不断上升,同时组合梁的极限位移也随之减小.
In order to study the effect of concrete strength on the mechanical properties of hollow GFRP tube-concrete-steel tube composite beam(DSTB),the finite element software ABAQUS was used to conduct numerical analysis on the components with concrete strength of C60,C65,C70,C75 and C80 respectively,and the experimental data obtained were compared and analyzed.The research results show that the higher the concrete strength,the higher the ultimate bearing capacity of the composite beam and the range of bearing capacity.Meanwhile,the ultimate displacement of the composite beam decreases.
作者
李文
王钰炜
武先梅
LI Wen;WANG Yuwei;WU Xianmei(Northeast Petroleum University School of Civil and Architectural Engineering,Daqing 163318,China)
出处
《徐州工程学院学报（自然科学版）》
CAS
2021年第3期68-75,共8页
Journal of Xuzhou Institute of Technology(Natural Sciences Edition)
基金
国家自然科学基金项目(51308028)。
关键词
混凝土强度
GFRP管
组合梁
承载力
位移
concrete strength
GFRP pipe
composite beam
bearing capacity
displacement
