约束条件对钢筋混凝土平板冲切承载力的影响
Influence of Constraints on the Bearing Capacity of Reinforced Concrete Slabs
李兆鹏 1淡凯2
作者信息
- 1. 杨凌职业技术学院,陕西 杨凌 712100;宁夏大学 土木与水利工程学院,宁夏 银川 750021
- 2. 杨凌职业技术学院,陕西 杨凌 712100
- 折叠
摘要
本文在实验的基础上建立不同约束条件的钢筋混凝土平板数值模拟试件,通过研究不同约束条件下钢筋混凝土平板的极限承载力及破坏形式,发现约束条件对钢筋混凝土极限承载力及破坏形式影响显著.简支及固支约束条件与支撑约束条件相比可大幅提升钢筋混凝土平板的极限承载力.对破坏形式的影响,发现约束条件越多试件的破坏形式越接近脆性破坏,当约束达到一定数量后再增加约束,试件的极限承载力及破坏形式的影响不再明显.
Abstract
In this paper,on the basis of experiments,numerical simulation specimens of reinforced concrete slabs with different constraints are established.By studying the ultimate bearing capacity and failure forms of reinforced con-crete slabs under different constraints,we find that the constraints have significant effects on the ultimate bearing capac-ity and failure modes of reinforced concrete.The simply supported and fixed constraints can greatly improve the ultimate bearing capacity of reinforced concrete slabs compared with the supported constraints.On the influence of failure mode,when the constraint conditions are more,the failure mode of the specimen is closer to brittle failure.
关键词
抗冲切性能/数值模拟/钢筋混凝土平板/约束条件Key words
punching shear resistance/numerical simulation/reinforced concrete slab/constraint condition引用本文复制引用
基金项目
国家自然科学基金资助项目(51468052)
杨凌职业技术学院自然科学基金(ZK23-27)
横向课题基金(0100327)
出版年
2024
NETL
NSTL
维普
万方数据