摘要
从修正压力场理论(MCFT)出发,建立钢筋混凝土(RC)板抗冲切承载力的计算模型,提出板的抗冲切承载力计算式。使用该计算式对109个钢筋混凝土板抗冲切试验结果进行验算,所得计算结果与试验结果吻合较好。并根据试验数据,借鉴欧洲混凝土结构设计标准EC2,考虑配筋率对抗冲切承载力的影响,对该计算式进行改进,改进式的计算结果与试验结果吻合良好。
A punching shear strength calculation model of reinforced concrete( RC) slab was established based on the modified compression field theory( MCFT),the formulae of punching shear strength of the slab were presented. The proposed model was used to verify the results of punching shear failure tests previously conducted on 109 reinforced concrete slabs,the results from the formulae were compared with test results and satisfactory agreements were achieved. Eurocode 2: Design of Concrete Structures( EN1992-1-1: 2004) was used for reference,considering the influence of the reinforcement ratio on punching shear strength,the formula was improved based on a lot of test data,the calculated results of the improved formula were in good agreement with test results.
作者
史庆轩
金渝林
SHI Qingxuan;JIN Yulin(School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;Key Lab of Structural Engineering and Earthquake Resistant,Ministry of Education,Xi’an University of Architecture and Technology,Xi’an 710055,China)
出处
《工业建筑》
CSCD
北大核心
2019年第6期94-98,共5页
Industrial Construction
基金
国家自然科学基金项目(51878540)
关键词
修正压力场理论
钢筋混凝土板
抗冲切承载力
配筋率
modified compression field theory
RC slabs
punching shear strength
reinforcement ratio
