组合梁斜拉桥的技术发展

Technological Development of Combined Beam Cable-stayed Bridge

组合梁斜拉桥的发展与组合结构及斜拉桥的发展密不可分,是两者均发展到一定的阶段相互结合的产物。随着组合结构及斜拉桥的不断发展,组合梁斜拉桥的实践也在不断深入。综述现代组合梁斜拉桥的发展历史,介绍其在结构型式、施工技术方面的发展概况,并指出主梁型式多样化及其向超大跨径方向的发展趋势。

The development of combined beam cable-stayed bridge is inseparable to the development of the combined beam and the cable-stayed bridge,which is the combined product of the both developing to a certain stage.With the continuous development of the combined structure and the cable-stayed bridge,the practice of combined beam cable-stayed bridge is continuously deeply developed.The article summarizes the developing history of the modern combined beam cable-stayed bridge,introduces its present developing situation in the structural type and construction technology,and points out the diversification of the main beam and its development trend to the super-long span.