浅析连续刚构桥梁跨中下挠的成因及对策

On reasons for excessive deflection in the midspan on continuous rigid frame bridges and their strategies

结合自身工作实践及国内外桥梁现状,针对连续刚构桥使用过程中跨中下挠的问题进行了分析,阐述了病害成因,并从设计和施工两方面入手,提出了相应的对策措施,以期指导连续刚构桥施工。

Combining with the working practice and the bridges at home and abroad, the paper analyzes the problem of excessive deflection in the midspan in the used process of the continuous rigid frame bridges, illustrates the reasons for the diseases, and points out respective strategic measures from the design and the construction, so as to direct the continuous rigid bridge construction.