拱形钢塔混合梁斜拉桥总体设计与计算分析  

Overall Design and Calculation Analysis of Arch Steel Tower Hybrid Girder Cable-Stayed Bridge

作　　者：李龙[1,2] 梁长海 Li Long;Liang Changhai(Anhui Transport Consulting&Design Institute Co.,Ltd.,Hefei 230088,China;Research and Development Center of Highway Transportation Energy Conservation and Environmental Protection Technology,Hefei 230088,China)

机构地区：[1]安徽省交通规划设计研究总院股份有限公司,合肥市230088 [2]公路交通节能环保技术交通运输行业研发中心,合肥市230088

出　　处：《北方交通》2021年第2期14-17,共4页Northern Communications

摘　　要：襄河大桥主桥采用(102+55)m的拱形钢塔混合梁斜拉桥,主梁采用流线型钢-混混合梁、桥塔采用钢-混混合塔的双结合段设计,钢梁、钢塔部分均采用后承压板式构造。该桥桥塔采用拱形钢塔,斜拉索采用无粘结钢绞线成品索,斜拉索在钢梁、混凝土梁及钢塔上分别采用锚拉板、齿块、钢锚箱进行锚固,桥梁下部结构采用承台及群桩基础,主梁及桥塔施工均采用少支架方法进行施工,该桥采用MIDAS进行整体计算并采用ANSYS进行局部计算,计算结果表明该桥结构受力合理,构造明确。The main bridge of Xianghe Bridge adopts(102+55)m arch steel pylon hybrid girder cable-stayed bridge.The main girder adopts streamlined steel-concrete hybrid girder and the bridge tower adopts double-joint section of steel-concrete hybrid tower.The steel girder and steel pylon are all constructed with back bearing plate.The bridge tower adopts arch steel tower,and the cable-stayed cable adopts unbonded steel strand finished cable.The cable-stayed cable is anchored on steel beam,concrete beam and steel tower with anchor plate,tooth block and steel anchor box respectively.Pile cap and pile group foundation are used in the lower structure of bridge.The main girder and bridge tower are constructed with less brackets.MIDAS is used for overall calculation and ANSYS is used for local calculation.The calculation results show that the structure of the bridge is reasonable and its structure is clear.

关 键 词：斜拉桥 拱形钢塔 混合梁 斜拉索 少支架法 有限元 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]