摘要
在当前的经济社会的发展新阶段,城市的发展建设越来越快,城镇化水平急速提升为城市道路工程项目的建设带来了很大的要求和标准,人们的出行需求也变得越来越旺盛,因此道路桥梁工程项目的建设大面积的铺开,在这个过程中,预应力混凝土的连续箱桥梁的建造施工技术获得了极为广泛的应用,特别是在城市中建设那些具有很长跨度的道路桥梁工程项目之中,这种技术的应用做出了突出的贡献。在其独特的结构的技术特征的基础上推动了道路桥梁工程项目的建设质量的提升,然而由于在道路桥梁工程项目的建造施工的过程中广泛的使用了这中建造施工的技术,在技术应用的阶段也慢慢的发现了一些设计和施工上的缺陷和问题,例如很可能发生的一些情况,就是在工程项目的建造完成阶段会出现一些纵向的裂纹,这个问题的产生会导致严重的道路桥梁工程项目的安全问题。在目前的工程项目的建造施工的阶段,由于在工程项目的建造施工期间因为增加了一些纵向的预应力,在中间层的桥段将会出现断裂的事故,这引起了道路桥梁工程项目的建造行业的高度注意。面对这些可能会出现的一些施工的质量和安全的问题,文章主要研究和分析了如何建设预应力钢筋混凝土框架的连续箱梁的施工,并且提出了一些有针对性的建设解决方法,为提高我国的道路桥梁工程项目建设质量以及施工安全提供了一些参考的基础。
In the current new stage of economic and social development,urban development and construction are faster and faster.The rapid improvement of urbanization level has brought great requirements and standards for the construction of urban road projects,and people's travel needs have become more and more vigorous.Therefore,the construction of road and bridge projects has spread in a large area.In this process,the construction technology of prestressed concrete continuous box bridge has been widely used,especially in the construction of long-span road and bridge projects in the city,the application of this technology has made outstanding contributions.On the basis of its unique structural technical characteristics,it promotes the improvement of the construction quality of the road and bridge engineering project.However,due to the extensive use of this construction technology in the construction process of the road and bridge engineering project,some defects and problems in the design and construction are slowly found in the stage of technical application.For example,there are likely to be some longitudinal cracks in the construction stage of the project,which will lead to serious safety problems of road and bridge projects.In the current construction stage of the project,due to the increase of some longitudinal prestressing force during the construction of the project,the bridge section in the middle layer will break,which has attracted great attention of the construction industry of the road and bridge project.In the face of these possible construction quality and safety problems,this paper mainly studies and analyzes how to construct the continuous box girder of prestressed reinforced concrete frame,and puts forward some targeted construction solutions,which provides some reference basis for improving the construction quality and construction safety of road and bridge projects in China.
作者
郑昭
ZHENG Zhao(Hangzhou Road Management Service Center,Hangzhou,Zhejiang,310000,China)
出处
《工程建设（维泽科技）》
2020年第4期134-135,共2页
Engineering Construction
关键词
预应力
混凝土现浇
连续梁
合龙段
施工技术
prestress
concrete cast-in-place
continuous beam
closure section
construction technology
