土木工程与管理学报2017，Vol.34Issue(4)：14-18,5.
钢筋混凝土/ECC叠合梁起裂荷载计算理论
Cracking Loadcalculation Theory for Steel Reinforced Concrete/ECC Composite Beams
摘要
Abstract
This paper reports a new calculation method for the cracking load of steel reinforced concrete/ECC composite beams.Based on the elasticity mechanicsand according to the elastic modulus ratio, steel and ECC were converted into concrete based section, by which composite beam has been equivalented into homogeneous elastic section.After that, the equivalent section's neutral axis and inertia moment could be calculated with the formula of static moment.Finally, after taking reference to the concrete structure design code and considering the strain hardening behavior of ECC,plastic influence coefficient of sectional resistance moment has been revised and thus results to the formula for the composite beams.Comparison between the calculated and experimented results confirmed the feasibility of the formula.关键词
叠合梁/正截面受弯/弹模比/起裂荷载Key words
composite beams/normal section bending/elastic modulus ratio/craking load分类
建筑与水利引用本文复制引用
高淑玲,郭亚栋,吴耀泉..钢筋混凝土/ECC叠合梁起裂荷载计算理论[J].土木工程与管理学报,2017,34(4):14-18,5.基金项目
国家自然科学基金(51108151) （51108151）
