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一、前言延安东路越江隧道地面引道段影响市区南北向道路交通。根据市区交通要求新建福建路、山东路、烂泥渡路三座自行车人行天桥;作为上海市地铁徐家汇车站的前期工程徐家汇人行天桥必须提前拆除,这一拆一建工程同期进行。因此,市政工程管理局主管领导提出利用徐家汇人行天桥于以上三处天桥中的意见。徐家汇天桥平面是园曲线,像一条彩虹跨越几条幅射形的道路,与徐家汇街景很相称,但给迁建带来困难。以上三座天桥根据桥位处的道路线形要求有着各不相同的平面线型。我们本着勤俭建国、勤俭办一切事业的精神反复研究,发现该桥梁使用于山东路桥较为合适。山东中路和山东南路中线有只夹角21°,利用此夹角
I. Preface Yan’an East Road Crossing the tunnel section of the tunnel affect the urban north-south road traffic. According to the traffic requirements of the urban areas, three bicycle pedestrian bridges of Fujian Road, Shandong Road and Zhundidu Road are newly built; as the pre-construction Xujiahui pedestrian bridge of Shanghai Metro Xujiahui Station, the pedestrian bridge must be demolished ahead of schedule. Therefore, the competent leaders of municipal engineering administration put forward the suggestion of using Xujiahui pedestrian bridge in the above three bridges. Xujiahui bridge plane is the park curve, like a rainbow across several radial-shaped road, and Xujiahui Street View is commensurate with, but to relocation difficulties. The above three flyovers have different planar lines according to the requirements of the road alignment at the bridge. In the spirit of thrift and thrift to establish a new business, diligently and thrifty to carry out all the undertaking of the spirit of repeated studies, found that the bridge used in Shandong Road and Bridge is more appropriate. Shandong Middle Road and Shandong South Center only angle of 21 °, the use of this angle