摘要
为了研究钢筋混凝土正交斜放盒式多筒结构两侧网格框架筒与中间剪力墙筒在水平地震荷载作用下的协同工作性能。选取结构刚度特征值λ为参数,建立该新型结构有限元模型。采用MIDAS/building对三设防水准下该结构协同受力性能进行研究,包括结构剪力、倾覆力矩、分担率等分配规律等。结果表明新型结构协同工作性能较好,框架筒在底部剪力承担率较大,承担近一半底部弯矩;刚度特征值λ越大,框架筒承担剪力和弯矩越大,而对剪力墙承担弯矩影响较小,建议在框架筒底部楼层采取加强措施。
The purpose of this paper is to study the cooperative mechanical behaviors of reinforced concrete orthogonally inclined box multitube structures under horizontal seismic load.The structural stiffness eigenvalueλis chosen as the parameter to establish a new finite element model.The cooperative mechanical behaviors of the structure,including the structural shear,the overturning moment,the sharing rate and so on are studied by using MIDAS/building.The results show that the new structure has better working performance,and the shear on the frame is largely borne by the bottom,and the bottom moment is about 50%.The larger the stiffness value the larger the shear force and the bending moment;the shear wall has little effect on the moment;it is recommended to take measures to strengthen the floor at the bottom of the frame.
作者
毕永辉
马克俭
徐增茂
杨宇婷
魏艳辉
BI Yong-hui;MA Ke-jian;XU Zeng-mao;YANG Yu-ting;WEI Yan-hui(Research Center of Spatial Structure,Guizhou University,Guiyang 550003,China;Liaoning ORF Technology Co.,Ltd,Shenyang 110399,China)
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2018年第4期1295-1302,共8页
Journal of Guangxi University（Natural Science Edition）
基金
贵州省科技合作计划项目(黔科合LH字[2016]7468号)
贵州省协同创新中心建设项目(黔教合协同创新字(2013)09)
贵州大学研究生创新基金资助(研理工2017062)
关键词
新型盒式多筒结构
协同受力
内力分配
刚度特征值
new box multi-barrel structure
cooperative work
internal force distribution
stiffness eigenvalue
