A reinforced concrete beam prestressed wire rope reinforcement device and method thereof

Abstract

The invention discloses a reinforcing device and a reinforcing method of a prestressed steel wire rope of a reinforced concrete girder. The reinforcing device is fixedly arranged on the reinforced concrete girder and mainly comprises two angle irons, the steel wire rope and a plurality of adjustable bolts, wherein the two angle irons are horizontally and fixedly arranged on the left girder side and the right girder side of the concrete girder through the corresponding sides of the two angle irons, and a row of bolt holes are respectively formed in the other side of each of the two angle irons along the length direction of the two angle irons; rings are all arranged on the adjustable bolts, the adjustable bolts are respectively and correspondingly locked in the bolt holes of the two angle irons one to one in an adjustable manner, the steel wire rope is coiled between the rings of the adjustable bolts of the two angle irons in an overstep zigzag manner so as to form a plurality of groups of transverse [-shaped reinforcing ribs, which are tensed to bypass the bottom of the concrete girder and are arranged in parallel in sequence, and the two free ends of the steel wire rope are respectively tensed and anchored by an aluminum fastener and the adjacent transverse [-shaped reinforcing ribs. In comparison with the prior art, the reinforcing device has the advantages of convenience for construction, excellent reinforcing effect, excellent shear behavior and high applicability.

Description

technical field [0001] The invention relates to the technical field of reinforced concrete beam reinforcement, in particular to a reinforced concrete beam reinforcement device and a method thereof, in which prestressed steel wire ropes are used for reinforcement to improve the shear resistance of soil beams. Background technique [0002] Existing shear reinforcement technologies for reinforced concrete beams mainly include enlarging section reinforcement method, externally bonded section steel reinforcement method, pasting fiber composite material reinforcement method, pasting steel plate reinforcement method, adding fulcrum reinforcement method and steel strand mesh-polymer mortar reinforcement method law etc. The existing reinforcement methods have the following problems: (1) There is a stress hysteresis effect between the reinforcement material and the original component, and the ability to work together is poor, which greatly affects the reinforcement effect; (2) The anc...

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Problems solved by technology

The existing reinforcement methods have the following problems: (1) There is a stress hysteresis effect between the reinforcement material and the original component, and the ability to work together is poor, which greatly affects the reinforcement effect; (2) The anchorage length at the end of the reinforcement material is not enough, and the anchoring end is prone to peeling off Destruction; (3) Increase the cross-sectional size of the original components, affecting viewing and use

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