秀山大桥锚体及锚固系统设计

发布时间：2018-01-29 03:55

本文关键词： 悬索桥锚体重力式锚碇锚固系统分布传力式结构设计　出处：《桥梁建设》2017年02期 　论文类型：期刊论文

【摘要】：舟山市秀山大桥为主跨926m的三跨连续弹性支承体系悬索桥,其官山侧和秀山侧均采用重力式锚碇、分布传力式锚固系统。锚体设计采用前、后趾分离的三角造型,左、右幅支墩采用不同的基底标高,前锚室与支墩之间设置弧形加劲板进行连接,锚块过锚固系统后锚面位置后横向进行回缩,前锚室顶板分段采用预制空心板和钢壳作为底模其上整体浇注混凝土的结构形式;锚固系统将锚固板、定位桁架、定位支架等构件进行标准化设计、模块化分组,采用螺栓连接的方式现场组拼成型;利用ANSYS软件对锚体及锚固系统进行实体有限元分析,结果表明:混凝土最大拉应力控制在4.194MPa,剪力键最大滑移量控制在0.38mm。
[Abstract]:Xiushan Bridge in Zhoushan City is a three-span continuous elastic support system suspension bridge with main span of 926m. The Guanshan and Xiushan sides adopt gravity Anchorage and distributed force transfer Anchorage system. After the separation of the rear toe triangular modeling, left and right width pier with different base elevation, the front anchor chamber and the pier set between the arc stiffening plate connection, anchor block after the anchor system after the anchor surface position of the lateral contraction. The precast hollow slabs and steel shells are used as the structural form of the whole pouring concrete on the bottom mold of the roof of the front anchor chamber. Anchorage system will anchor plate, positioning truss, positioning support and other components for standardized design, modular grouping, the use of bolt connection of the site assembly; The finite element analysis of the anchor body and the anchoring system is carried out by using ANSYS software. The results show that the maximum tensile stress of concrete is controlled at 4.194 MPA and the maximum slip of shear bond is controlled at 0.38 mm.
【作者单位】：浙江省交通规划设计研究院;天津市交通科学研究院;杭州市公路管理局;
【分类号】：U448.25
【正文快照】： 1工程概况舟山市秀山大桥连接官山岛和秀山岛,跨越官山岛与秀山岛间100 000吨级航道。官山岛至秀山岛间龟山航门水道水域宽约1 740m,最大水深80m,水下等高线-20m的水域宽约1 600m,东西走向,桥位区设计风速大(高达47.5m/s)。秀山大桥主桥设计采用双塔三跨连续弹性支承体系悬索

【相似文献】