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一、前言长东黄河大桥是我国新(乡)荷(泽)线长垣-东明黄河大桥,是我国当前最长的铁路桥梁,桥长为10,282公里,全桥由四孔、和三孔钢桁连续梁桥以及单孔预应力钢筋混凝土简支梁桥等桥型组成。桥位介于河南省的长垣与山东省的东明之间,处于华北地震区的邢台-河间地震带和许昌淮南地震带中;对桥址的地震危险性综合一分析后,桥址的最高地震烈度为7度,水平向加速度峰值为125-177厘米/秒~2。
I. INTRODUCTION The Changdong Yellow River Bridge is the longest railway bridge in China’s new (township) Heze (Ze) line - the Dongming Yellow River Bridge. It is currently the longest railway bridge in China with a total length of 10,282 kilometers. The bridge consists of four-hole and three-hole steel.桁 Continuous beam bridge and single hole prestressed reinforced concrete simple beam bridge and other bridges. The bridge is located between Changchun in Henan Province and Dongming in Shandong Province, in the Xingtai-Hejian seismic belt in the North China earthquake zone and in the Huainan seismic belt in Xuchang. After a comprehensive analysis of the seismic hazard of the bridge site, the bridge site The highest earthquake intensity is 7 degrees and the horizontal acceleration peak is 125-177 cm/sec~2.