Secondary reinforcing device and method for reinforcing reinforced concrete beam through steel plate: Fid-Bau Portal

Secondary reinforcing device and method for reinforcing reinforced concrete beam through steel plate

WANG YI / LIU YUJIA / ZHOU HAO / HE XUHUI / ZHU ZHIHUI

The secondary reinforcing device comprises a fiber net, a mounting part and a reinforced concrete layer, the fiber net covers the steel plate of a beam body, the fiber net and the steel plate are arranged at an interval, the mounting part is fixedly connected with a concrete structure of the beam body, a mounting hole is formed in the mounting part, and the reinforced concrete layer is arranged in the mounting hole. The two ends, located on the two opposite sides of the steel plate, of the fiber net are connected with the installation pieces in a winding mode and penetrate through the installation holes, and the reinforced concrete layer is formed on the fiber net and the steel plate in a straightened state through pouring. The fiber net is wound around the mounting piece, so that the whole fiber net and the mounting piece can be firmly connected, the straightened state can be conveniently kept, the fiber net can be conveniently poured and embedded in the reinforced concrete layer, reliable connection of the reinforced concrete layer and a reinforced structure is guaranteed, and the problems of stripping of the reinforced structure and loss of the reinforcing effect are solved; the service life can be prolonged, and the bearing capacity of the concrete member can be further improved.

本发明公开了一种钢板加固钢筋混凝土梁的二次加固装置及方法，包括纤维网、安装件和增强混凝土层，纤维网覆盖于梁体的钢板上、并与钢板间距设置，安装件与梁体的混凝土结构固定连接，安装件上设有安装孔，纤维网位于钢板相对两侧的两端与安装件缠绕连接、并贯穿于安装孔，增强混凝土层浇筑形成于拉直状态的纤维网和钢板上。本发明通过纤维网缠绕安装件，能使整个纤维网与安装件牢固连接，且能方便保持拉直状态，便于能方便浇筑埋嵌在增强混凝土层中，保证了增强混凝土层与被加固结构的可靠连接，避免了加固结构的剥离和加固效果丧失的问题，能延长其使用寿命，能进一步提高混凝土构件的承载力。

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