预应力高强混凝土施工技术应用

Research on construction technology of the large span's high strength prestressed concrete

简要介绍了当前大跨度预应力高强混凝土的发展情况,并结合工程实际,详细阐述了大跨度预应力高强混凝土结构的施工要求、预应力筋张拉控制、孔道灌浆、裂缝控制,探讨了施工阶段的工程监测方法。

During the construction process,the construction of the large span's high strength prestressed concrete is the key part of the whole engineering project.The situation of development of the large span's high strength prestress-concrete is introduced briefly in the paper.Considering the some projects,its construction demand,prestressed steel wire tensile controlling,duct grouting and crack controlling,duct grouting and crack controlling are stated in detail,as well as the method of project monitor during the construction is discussed.