菏泽市丹阳路大桥设计
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摘要
菏泽市丹阳路大桥为(40+100+240+100+40)m双塔中央单索面半飘浮体系混凝土斜拉桥。该桥塔、墩固结,主梁与塔、墩间设置横、竖向支座和纵向液压阻尼器;主梁采用单箱三室斜腹板截面,高3.6m。桥塔采用顺桥向人字形的独柱混凝土塔,高68.2m,单箱单室矩形空心截面。人字形塔柱穿过主梁,与墩身顺接,墩身采用十字形空心薄壁截面,矩形承台,布置33根ф2.0m钻孔灌注桩。辅助墩和交接墩均采用花瓶形双柱式框架墩,矩形承台,布置8根ф1.5m钻孔灌注桩。斜拉索采用ф7mm镀锌高强平行钢丝束。采用MIDAS Civil 2006和SCDS平面程序对该桥进行计算分析,结果表明该桥各项检算均满足规范要求。
The Danyang Road Bridge in Heze City is a semi-floating system concrete cablestayed bridge with double pylons,a central single cable plane and with span arrangement(40+100+240+100+40)m.The pylons and piers of the bridge are rigidly fixed and in between the main girder and pylons and piers,the lateral and vertical bearings and the longitudinal hydraulic dampers are arranged.The cross section of the main girder is the section of triple-cell single box with inclined webs and the girder is 3.6min depth.In the longitudinal direction of the bridge,apylon is the single-column concrete pylon in the shape of inverted Y,is 68.2min height and the cross section of the pylon is the rectangular hollow section of single-cell single box.The inverted Yshape pylon passes through the main girder and is smoothly fixed with the pylon pier.The cross section of the pylon pier is the crisscross hollow thin-wall section and the pier stands on the rectangular pile cap under which 33 nos.ofф2.0 m bored piles are arranged.The auxiliary piers and boundary piers are all the vase-shape double-column frame piers and respectively stand on each rectangular pile cap under which 8nos.ofф1.5mbored piles are arranged.The stay cables are made up of theф7mm high-strength galvanized parallel steel wire strands.The bridge is calculated and analyzed by the MIDAS Civil 2006 and plane program SCDS.The results show that the various checking calculations of the bridge can meet the relevant requirements in the codes.
引文
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