摘要
该文提出一种带C形钢边框装配式钢筋混凝土预制楼板,可有效提高板间连接强度、实现楼板双向受力,提高楼板设计承载力,增加楼板刚度。对6块新型楼板进行了静力试验,分析了钢筋及C形钢应变发展、荷载-挠度变化规律,得到了试件的设计承载力、破坏模式和极限承载力。基于有限元参数分析,得到C形钢边框腹板高度、腹板厚度及翼缘宽度等因素对楼板受弯承载力的影响,根据试验与有限元结果提出受弯承载力简化计算方法。
A prefabricated steel-reinforced concrete slab with C-type steel border was proposed,which can effectively improve the connection strength,realize two-way slab and increase the rigidity of the floor.Static tests of 6 proposed slab specimens were conducted.The strain development of steel bars and C-type steel,as well as the load-deflection relationships,were analysed,while the design bearing capacity,failure mode and ultimate bearing capacity were obtained.Parametrical analysis by finite element method was performed to investigate the influence of the height and thickness of the web and the width of the flange with C-type steel border on the flexural bearing capacity of the floor.Based on the test and finite element results,a simplified calculation method for the flexural bearing capacity of the proposed slab is proposed.
作者
刘学春
宋杰
陈学森
强申
LIU Xue-chun;SONG Jie;CHEN Xue-sen;QIANG Shen(Beijing Engineering Research Center of High-rise and Large-span Prestressed Steel Structures,Beijing University of Technology,Beijing 100124,China;Tianjin Haihe Developing Investment Corporation Limited,Tianjin 300000,China)
出处
《工程力学》
EI
CSCD
北大核心
2022年第S01期312-319,共8页
Engineering Mechanics
基金
国家自然科学基金项目(51978013)。
关键词
土木工程
钢结构
带钢边框楼板
C形钢边框
静力性能试验
预制楼板
设计承载力
装配式楼板
civil engineering
steel structure
slab with steel border
C-type steel border
static test
prefabricated floor slab
design resistance
assembled floor slab
