重庆大学学报2017，Vol.40Issue(9)：30-39,10.DOI:10.11835/j.issn.1000-582X.2017.09.004
圆形孔蜂窝型钢高强混凝土梁受弯性能研究
Study on the bending performance of circular hole castellated steel reinforced high strength concrete beam
摘要
Abstract
To study the bending performance of circular hole castellated steel reinforced high strength concrete beam,we designed four specimens,and then carried out flexural loading test.The results mainly show that the loading process of specimens can be divided into elastic stage,elastic-plastic stage and failure stage.During the loading process,the beam does not crack prematurely.And after yielding,the beam still owes high safety reserve.All the deflection value of specimens are beyond 14 mm when damaged,far surpassing the specification limit,which means that the beam has good deformation performance.Based on the test results,software ABAQUS was used to analyze the performance of specimens with nonlinear finite element method.And the finite element calculation results agree well with the test results.Based on the foundation,we used software ABAQUS to expand the analysis.The results show that the steel and concrete strength both have little effect to the initial elastic stiffness.With the increase of steel and concrete strength,the bearing capacity of specimens will gradually increase and the ductility coefficient will gradually decrease.关键词
圆形孔蜂窝型钢/高强混凝土/梁高强混凝土梁/受弯性能/有限元分析Key words
circular hole castellated steel/reinforced high strength concrete beam/bending performance/experimental study/finite element analysis分类
建筑与水利引用本文复制引用
孟二从,苏益声,邱秀丽,皮云东,肖祖霖..圆形孔蜂窝型钢高强混凝土梁受弯性能研究[J].重庆大学学报,2017,40(9):30-39,10.基金项目
国家自然科学基金资助项目(51468003) （51468003）
西南大学博士基金资助项目(SWU116071).Supported by National Natural Science Foundation of China (51468003) and the Doctoral program of Southwestern University(SWU116071). （SWU116071）
