CFRP粘贴双筋钢筋混凝土T形梁正截面受弯全过程分析

WHOLE FLEXURAL PROCESS ANALYSIS OF SECTION OF DOUBLE REINFORCED CONCRETE T-BEAMS BONDED WITH CARBON FIBER REINFORCED PLASTICS

采用混凝土非线性应力应变关系并考虑受压钢筋的影响,推导出各阶段的弯矩-曲率关系的理论公式,讨论CFRP加固量、配筋率等因素对T形梁截面曲率延性和弯矩-曲率关系的影响。

Based on the nonlinear stress strain relation of concrete,this paper calculates the ductility coefficient of the section of double reinforced concrete T-beams bonded with carbon fiber reinforced plastics （CFRP） ,and discusses CFRP amount, steel reinforced ratio effect upon beams curvature ductility coefficient and moment-curvature relationships.