摘要
开展了3个混凝土单层空间框剪结构模型的拟静力试验,考察了它们在楼板参与作用下的破坏过程,并与弹塑性分析结果进行了对比,探讨了楼板对抗侧力构件剪力分配的影响。试验和分析结果表明:1)框架梁总体上破坏较晚且破坏程度明显小于剪力墙和框架柱;2)水平荷载作用下剪力墙附近楼板损伤较大,该处楼板钢筋承受较大拉应力;3)考虑实际楼板作用和忽略楼板作用相比,前者情况下框剪结构所能承受的最大水平荷载有所增大,同时剪力墙在所有抗侧力构件中的贡献比例也有所提高;4)具有相同横截面积和配筋的不同位置框架柱所承受的剪力总体上相差不大。
Pseudo-static tests of three one-storey spatial RC frame-shear wall structures with floor slabs were conducted to investigate their failure modes and hysteretic behaviors.The test results were compared with those of pushover analysis.It is shown that： 1） damage of the frame beams occurs later and is less than that of the shear wall and the frame columns;2） damage of the floor slabs under lateral loading is significant in regions close to the shear wall,and tensile stresses of slabs＇ steel bars in these regions are much larger;3） in comparison with the case that the floor slabs are neglected,the maximum lateral load that a frame-shear wall structure can bear is larger in the case that the floor slabs are taken into account,and the contribution ratio of the shear wall also increases;4） shear forces carried by the frame columns with identical cross sections and reinforcement details but located at different positions are close to each other on the whole.
出处
《土木建筑与环境工程》
CSCD
北大核心
2011年第6期44-50,共7页
Journal of Civil,Architectural & Environment Engineering
基金
国家自然科学基金资助项目(90815012
51025829)
亚热带建筑科学国家重点实验室重点研究项目(2009ZA04)
全国博士生国内访学项目(F-0920)
关键词
钢筋混凝土
框剪结构
抗震试验
弹塑性分析
reinforced concrete
frame-shear wall structure
seismic test
elastoplastic analysis
