摘要
随着高速铁路建设技术的发展,大部分区段采用桥梁通过。在特殊的盐碱地地段,为减少盐碱地质对桥梁基础的腐蚀,尽量加大箱梁的跨度,减少桥墩的数量。但从经济上考虑,是采用40 m箱梁,还是采用32 m箱梁,本文以包银铁路1号双线特大桥为例,分析2种梁型的经济性,并进行比较。
With the development of high speed railway construction technology, the bridge construction scheme is adopted in most sections. In order to reduce the corrosion of the salt base to bridge foundation, the span of box girders should be increased as much as possible to reduce the number of pier in the special saline alkali land section. However, the economy of span selection of 40 m or 32 m box girders should be analyzed. Taking the No. 1 double line super large bridge of Bao - Yin railway as an example, the economy of 2 types of box girders are analyzed and compared in this paper.
出处
《铁路工程技术与经济》
2018年第2期42-44,共3页
Railway Engineering Technology and Economy
关键词
铁路桥梁
箱梁
预制架设
经济性分析
Railway bridge
Box girder
Prefabricated erection
Economic analysis
