顶部现浇板对装配式多层混凝土框架结构抗侧协调的影响  

Lateral coordination analysis on top-storey casting slab for multistory regular concrete frame with prefabricated slab

作　　者：潘从建 黄小坤 冯大斌[1,2] 徐福泉 陈才华 Pan Congjian;Huang Xiaokun;Feng Dabing;Xu Fuquan;Chen Caihua(China Academy of Building Research,Bejing 100013,China;CABR Technology Co.Lid,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]建研科技股份有限公司,北京100013

出　　处：《建筑科学》2020年第5期13-18,共6页Building Science

基　　金：十三五国家重点研发计划,研究预制预应力装配式结构体系设计技术(2016YFC0701504)。

摘　　要：为适当减少多层规则混凝土框架结构全装配楼板的抗剪键数量,提出对采用全装配楼板的多层混凝土框架结构在其高度80%以上的楼层设置现浇板(刚性隔板),以较经济地实现多层规侧框架结构整体抗侧变形协调。采用振型反解反应谱法,分别计算分析不同层数和不同楼板布置形式多层混凝土框架结构对比模型的框架柱侧向剪力和位移,结果表明多层规则混凝土框架结构顶部设置现浇板能较好地实现框架结构整体抗侧变形协调;多层规则混凝土框架结构顶部设置刚性隔板导致结构顶部边榀框架柱剪力较大,结构底层边榀框架柱剪力较小的特征。In order to reduce the shearing connected keys of precast slab,casting slab arranged above 80% height of multistory frame structure is put forward to improve the multistory concrete frame lateral integrality,based on the multistory concrete seismic mechanics. Contrastive analysis on different multistory regular concrete frame model with different slab arrangement is taken to illustrated structural lateral shearing force and deformation by modesuperposition response spectrum method. Validity of top-story diaphragm on multistory concrete frame is verified by the results of finite element model. Top-storey diaphragm on multistory concrete frame could result in shearing force difference of column on transverse edge,which has higher shearing force of top-storey column and lower shearing force of base-storey column.

关 键 词：多层混凝土框架 全装配楼板 顶部楼板 抗侧协调性能 

分 类 号：TU378.2[建筑科学—结构工程]