宁波市福明路跨宁波东站主桥是跨径布置为55+45+220+45+55=420m 的双塔双索面斜拉桥.主梁采用混合主梁,其中两侧边跨各采用预应力砼箱梁,中跨197.2m范围内采用钢箱梁,钢箱梁与预应力混凝土箱梁相交位置为2m 长的钢混接合段,为半漂浮体系.主梁上跨宁波东站的位置处跨越甬台温铁路正线2条,到发线5条;跨越客车整备线5条,存车线7条;跨越辅助客站发线2条及基本站台和中间站台.针对主梁上跨既有线,索塔临近既有线,协调、组织难度大等特点,中跨钢梁采用步履式顶推的施工方案,索塔上塔柱采用液压爬模的施工技术.%In Ningbo Fuming road the bridge span across Ni-ngbo East Railway Station is a cable-stayed bridge with double cable planes of the Twin Towers 55+45+220+45+55=420m. Main beam using hybrid girder, the two sides across the prest-ressed concrete box girder, in the range of 197.2m with steel box girder, steel girder and prestressed concrete box girder intersection position is 2m long steel-concrete joint section, half floating system. The main girder span Ningbo East Rail-way Station location across the Ningbo-Taizhou-Wenzhou rai-lway line 2, and line 5; across the bus full of line 5, parking line 7; span and auxiliary station line 2 and the basic platform and the intermediate platform. In view of main girder cross lines, tower close to existing lines, the characteristics of organization and coordination are difficult, mid-span steel girder construction scheme with a push of the tower, tower construction technology with hydraulic climbing formwork.
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