悬浇连续梁(刚构)设计理念差异的思考

Thinking on the Difference of Design ldea of Continuous Beam with Suspension Castl(Rigid Structure)

悬浇连续梁(刚构)以其跨越能力大、经济性好的优势广泛运用于公路桥梁。随着桥梁进入服役期时间的增长,此类桥梁出现了很多严重的问题。如何在满足使用要求的前提下,对大跨度预应力混凝土连续刚构桥进行合理的设计,是业界比较关注的问题。文章从设计角度探讨中法日美等国的悬浇连续梁(刚构)设计理念上的异同点,加深我们对连续梁设计关键细节的认识。

The cantilever continuous beam(rigid frame)is widely used in highway bridges because of its great crossing ability and good economy.With the increase of bridge service time,many serious problems have arisen.How to design the long span prestressed concrete continuous rigid frame bridge reasonably under the premise of meeting the service requirements is a problem concerned by the industry.This paper discusses the similarities and differences in the design concepts of cantilever continuous beam(rigid frame)in China,France,Japan and the United States from the perspective of design,in order to deepen our understanding of the key details of the design of continuous beam.