TRILINEAR MOMENT-CURVATURE RELATIONSHIP FOR REINFORCED-CONCRETE BEAMS

被引：0

作者：

ALWIS, WAM

机构：

来源：

ACI STRUCTURAL JOURNAL | 1990年 / 87卷 / 03期

关键词：

Concrete - Cracking - Concrete Construction - Reinforced Concrete - Structural Analysis - Computer Aided Analysis;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A trilinear moment-curvature curve is constructed by depicting each of uncracked, cracked, and yielded behavior of reinforced concrete beams as linear segments. This curve and Branson's well-known formula for effective stiffness are qualitatively related to each other, and as a result the difference between predictions by the two models is inherently bounded. Moment-curvature and load-deflection curves derived by Branson's formula and a recent nonlinear model by Bazant and Oh have been compared with those produced by the trilinear model for several example beams. Good agreement is observed among these models. The main advantage of the trilinear model is in computer applications related to analysis and design of reinforced concrete beams and frames.

引用

页码：276 / 283

页数：8