介绍了一种新型过河预制装配式电缆桥架。该桥架为叠合式受弯构件,跨中截面形式为向上开口槽形截面,端部为箱形截面。预制构件及其装配连接均采用了后张预应力技术。桥架的主要设计原则为:荷载标准组合下不出现裂缝,荷载基本组合下桥架底板不出现裂缝。结合某工程预制装配式电缆过河桥架的设计,介绍了设计过程和结果,验证了该新型桥架的可行性。 A new type of prefabricated cable bridge is introduced. The bridge is a composite flexural member, and the cross-section form is an upwardly open trough-shaped section with a box-shaped cross section at the end. Prefabricated components and their assembly are connected using post-tensioning prestressed technology. The main design principle of the bridge is that no cracks will appear under the load combination and no cracks will appear on the bottom of the bridge under the load combination. Combined with the design of a prefabricated cable-stayed bridge, the design process and results are introduced, and the feasibility of the new bridge is verified.