以一座27．5m宽的三塔单索面矮塔斜拉桥为背景，腹板为研究对象，研究了多腹板宽箱梁的空间应力分布，总结出了多箱室薄壁箱梁腹板剪力分配规律，对同类桥型的设计和施工具有一定的参考意义。%Based on a 27.5 meter wide extradosed cable-stayed bridge with single plane cable of three towers, the distribution of spatial stress in wide box girder of several webs is studied on the webs. Then its law of distribution of the shear on the webs of box girders are concluded. It has a certain reference significance for the design and construction of the similar bridge types.
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