钢筋混凝土受扭构件的粘钢加固补强研究

Study on Steel-adhering Strengthening of R.C.Components in Torsion

主要介绍钢筋混凝土受扭构件采用粘钢加固的一些理论分析与试验结果。从理论上分析了粘钢加固能够提高钢筋混凝土构件的受扭承载能力,并推导了受扭构件粘钢加固后的极限承载力的计算公式。在理论分析的基础上利用ANSYS有限元程序,以数值分析模拟了加固的受力、破坏全过程,并介绍了受扭构件的结构试验结果。综合理论分析、数值计算、结构试验可以得出粘钢加固能有效地提高构件的受扭极限承载能力的结论,推导了相应的计算公式。

This paper mainly introduces some theory about steel-adhering strengthening of component in torsion.Firstly,this paper analyzes theoretically that the steel-adhering strengthening can improve the bearing capacity of concrete components in torsion,and deduces the calculation formulae of ultimate bearing capacity of member in torsion after strengthened by steel adhering.Then,based on the theoretical analysis and applying AN-SYS finite element program,it simulates the whole process of bearing and failure by numerical analysis.At last,it introduces the result of structural modeling and experiment.Based on the theoretical analysis,numerical calcula-tion and structural experiment,it is concluded that steel-adhering strengthening can improved the ultimate bear-ing capacity of members in torsion and relevant calculation formulae are deduced.