问题68对于较大或大跨度的桥梁,桥垮结构竖向刚度值是否也执行GB50157—2003《地铁设计规范》第9.1.5条表9.1.5的规定答:表9.1.5主要针对连续多跨中小跨度桥梁,是为了确保列车通过时的舒适,也为了控制预应力混凝土梁的后期徐变。对于较大或大跨度的桥梁可不受此条的限制。参照 Question 68 For bridge with large or large span, whether the vertical stiffness value of bridge collapse structure is also implemented according to Table 9.1.5 of Article 9.1.5 of Subway Design Code GB50157-2003 Answer: Table 9.1.5 mainly refers to the continuous Cross-span bridge, in order to ensure the comfort of the train passing, but also to control the post-creep of prestressed concrete beams. For larger or large span of the bridge is not subject to this article. Reference