求翻译：先简支后连续梁桥以结构受力性能好、伸缩缝少、行车平顺舒适、施工时简单可行，施工质量可靠，有利于实现桥梁施工的工厂化、标准化和装配化，而且施工工期也较短等而成为最富有竞争力的主要桥型之一。是什么意思？

First simply supported continuous beam bridge structure mechanical performance, expansion joints, driving is smooth and comfortable, the construction of simple and feasible, reliable quality construction, bridge construction of the factory, standardization and assembly, and construction period than

After briefly support continuous beam axle in order to structure the force better performance, expansion joints, less traffic smooth comfort, when the construction simple and workable, with the construction quality, reliable, and to the realization of the bridge construction, standardization and fac

After first simple support continuous bridge by structure stress performance good, expansion joint few, driving smooth comfortable, when construction simple feasible, the construction quality is reliable, is advantageous to the realization bridge construction factorization, the standardization and t

Simply supported-continuous girder bridge with good behaviors of structures and expansion joints, road ride comfort, less construction is simple, quality reliable, conducive to the realization of factory, standardization of bridge construction and Assembly, and the construction period is shorter and

正在翻译，请等待...