三跨钢—混组合连续梁桥桥面混凝土抗裂研究

Study of concrete crack of three-span steel-concrete composite continuous bridge

结合工程设计实践,综合分析了影响钢—混组合连续梁桥混凝土拉应力的主要因素,对桥梁负弯矩段桥面板抗裂措施作了研究,并比较了多种控制混凝土拉应力的工程措施,为类似工程的设计提供可供选择的建议。

Combining with engineering design practice,the article comprehensively analyzes major factors influencing steel-concrete composite continuous beam bridge concrete tensile stress,studies bridge deck anti-cracking measures of negative bending moment section,and compares various concrete tensile stress engineering controlling measures,which has provided some suggestions for similar engineering design.