基于能量法的型钢混凝土构件的界面滑移计算

Calculation of Interface Slips in SRC Members by Energy Method

根据国内外关于型钢混凝土粘结滑移性能的试验研究资料,在已有对型钢混凝土粘结应力沿锚固长度的分布规律的基础上,引入能量法求解型钢混凝土界面的相对滑移.以型钢混凝土圆钢管柱为例,建立了型钢与混凝土界面的沿锚固长度方向相对滑移的基本计算公式.计算结果表明,圆钢管混凝土柱中型钢与混凝土界面的相对滑移具有二次曲线分布的基本特征.

Based on the experiment materials, bond slip behavior of the steel reinforced concrete （SRC） beams is studied in this paper. According to the characteristics of the loads, the slip displacements formulation between steel and concrete of a SRC column subjected to push out load is derived by energy method. The calculation results show that the slip curves have the basic characteristics of quadratic curves distribute.