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由于各种原因,目前我国有很多混凝土桥梁需要维修或加固。近年来,采用粘贴CFRP布加固混凝土结构的技术得到广泛应用。为充分利用CFRP布的高强特点,对CFRP布施加预应力后,再粘贴于梁底进行加固,可以取得更好的加固效果。本文介绍预应力CFRP布在混凝土桥梁加固中的应用技术及其施工阶段的计算方法。
Due to various reasons, there are many concrete bridges in our country that need to be repaired or reinforced. In recent years, the use of CFRP cloth paste concrete structure reinforcement technology has been widely used. In order to make full use of the high-strength characteristics of CFRP cloth, CFRP cloth is prestressed, and then bonded to the bottom of the beam for reinforcement, which can achieve better reinforcement effect. This paper introduces the application technology of prestressed CFRP cloth in the reinforcement of concrete bridges and the calculation method in the construction stage.