重力式锚碇预应力锚固系统的定位研究与应用

Location Research and Application of Prestressed Anchor System for Gravity Anchorage

以贵阳至黄平高速公路项目阳宝山特大桥施工为例,从锚体、基础及支墩竖向分层以及锚碇预应力锚固系统支架的设计和安装两方面阐述了锚碇预应力系统定位施工的关键控制要点。该项目成功地完成了主缆架设和全桥的合龙施工,达到了桥梁施工的预期目标。

Taking the construction of Yangbaoshan bridge on the expressway project from Guiyang to Huangping as an example,this paper expounds the key control points of anchor prestress system positioning construction from two aspects:vertical stratification of anchor body,foundation and support piers,and design and installation of anchorage prestress anchorage system supports.The project has successfully completed the erection of the main cable and the closure of the whole bridge,reaching the expected target of bridge construction.