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评述了不对称斜拉桥,以几个最近设计项目讨论和叙述了审美和结构概念。结合塔柱和拉索布置的概念设计,评述了平面弯曲的效应。建议采用部分斜拉桥的可能性,以减小由于粱的平面弯曲引起的高桥墩的附加内力,并以一设计研究实例来示范。
Asymmetric cable-stayed bridges were reviewed and the aesthetic and structural concepts discussed and described in several recent design projects. Combined with the conceptual design of tower and cable arrangement, the effect of plane bending is reviewed. The possibility of using partial cable-stayed bridges is suggested to reduce the additional internal forces of tall piers due to plane bending of beams and is demonstrated by a design study example.