【摘要】 山西中南部铁路通道是我国第一条按重载标准设计的大能力运煤铁路通道,该线汾河特大桥主桥采用(46.1+2×76+46.1)m预应力混凝土刚构连续梁,桥高47 m,该结构体系具有较高的承载能力和较好的抗震性能。本文重点介绍主桥的结构设计、ZH活载(重载)与中—活载对比计算分析、抗震检算,以及墩梁固结部位实体模型分析等。更多还原

【Abstract】 Shanxi-Henan-Shandong Railway thoroughfare,a railway with large coal transportation capacity,is for the f irst time designed with the heavy load standard in China. The main span of Fenhe River Bridge is a( 46. 1 + 2 × 76+ 46. 1) mcontinuous rigid frame prestressed concrete bridge. Its height is 47 m. This structure has higher bearing capacity and better seismic performance. In this paper,the structural design of the main span was introduced. Two load standards,including Z H( heavy load) and CR live load,were applied and compared. Seismic resistance was calculated and checked. Finally,the f ixed joint between pier and girder was analyzed with a f inite element solid model.更多还原