框支密肋壁板结构转换层刚度比的合理取值  

Rational ratio of lateral stiffness for frame-supported multi-ribbed slab structure in transfer stories

作　　者：贾英杰[1] 魏晓[2,3] 张宇航[4] 王向阳 穆林[2] 赵冬[2] 

机构地区：[1]北京交通大学土木工程学院,北京100044 [2]西安建筑科技大学土木工程学院,陕西西安710055 [3]总后建筑工程研究所,陕西西安710032 [4]兰州军区联勤部,甘肃兰州730000 [5]兰州军区工程科研设计所,甘肃兰州730000

出　　处：《西安建筑科技大学学报（自然科学版）》2009年第3期328-333,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家"十一五"科技支撑项目子课题(2006BAJ04A02-5);陕西省13115资助项目(2008ZDKG-76);陕西省自然科学基金资助项目(2004E221)

摘　　要：框支密肋壁板结构在城市建设中应用前景广泛,确定合理的转换层侧移刚度比能使结构在地震作用下弹性层间位移反应均匀并减少弹塑性变形集中,从而提高结构的抗震性能.提出框支-复合弹性板力学模型,用于计算整体结构在弹性阶段的内力和变形情况;应用该模型对一7层的框支密肋壁板结构结构进行弹性动力反应分析,探讨了转换层上、下刚度比对框支密肋壁板结构侧移的影响,并提出了框支密肋壁板结构转换层刚度比的合理取值.计算结果表明:在8度区框支壁板结构的第2层与底层的侧移刚度比宜控制在0.9～1.7之间,最优刚度比为1.3.In urban constructions, the application perspective of frame-supported multi-ribbed slab structure is widely spread. The rational ratio of lateral stiffness for frame-supported multi-ribbed slab structure in transfer stories leading to the elastic relative displacement uniformity and the decrease of elastic-plastic deformation was put forward in this article in order to improve the seismic performance of this structure. Frame-supported elastic composite slab mechanical model is established in this paper to calculate the internal force and deformation of this structure in elastic stage. With a case study on a 7 story Frame-supported multi-ribbed slab structure, elastic seismic response was analyzed through this model. The influence on displacement which was due to the ratio of lateral stiffness in transfer stories was discussed. What＇s more, the rational ratio of lateral stiffness for frame-supported multi-ribbed slab structure in transfer stories was well defined. In the end , the calculation results of this study indicates that the rational range of ratio of lateral stiffness for frame-supported multi-ribbed slab structure in transfer stories of Intensity 8 is 0.9-1.7 and the excellent ratio is 1.3.

关 键 词：框支密肋壁板结构 刚度比 弹性动力反应分析 

分 类 号：TU364[建筑科学—结构工程] TU317.1