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目前,随着我国交通事业蓬勃发展,公路路桥出现严重破损,承载能力下降。我国公路桥梁界的广大工程技术人员对公路路桥加固技术进行了大量的研究工作,并提出了许多切实可行的加固方法。实践证明,采用体外预应力可大大提高公路路桥的承载能力,具有应用和推广价值。本文对其中的体外预应力加固法的特点、原理及施工要点进行了简要的分析。
At present, with the vigorous development of transportation in our country, the road and bridge have been severely damaged and the carrying capacity has dropped. The vast majority of engineers and technicians in highway bridges and bridges in China carried out a great deal of research work on the reinforcement technologies of road and bridge, and put forward many feasible reinforcement methods. Practice has proved that the use of prestressed in-vitro can greatly enhance the bearing capacity of road and bridge, with the application and promotion of value. In this paper, the characteristics, principle and construction points of the external prestress reinforcement method are briefly analyzed.