钢筋混凝土刚架拱桥施工工艺主要特点是采用条形、分段预制构件使主拱先合拢成拱 ,然后安装微弯板、浇桥面组成整体。介绍 32 7国道利沟大桥加宽施工中 ,构件预制、起吊、安装等施工技术 Reinforced concrete arch bridge construction process is characterized by the main strip, prefabricated sections of the main arch arch close together, and then install the micro-bending plate, pouring the bridge to form the whole. Introduction 32 7 State Road Dali Bridge widening construction, precast components, lifting, installation and other construction techniques