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T-beam reinforcing structure and construction method thereof

A technology of beam reinforcement and structure, applied in bridge reinforcement, building structure, bridge, etc., can solve the problems of T-beam and T-beam bite force reduction, force transmission effect reduction, unfavorable single beam stress state, etc., to improve the lateral Integrity, improving bearing capacity, and avoiding the effect of single beam stress

Active Publication Date: 2015-12-23
张江涛
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  • Abstract
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Problems solved by technology

The compression area of ​​the T-beam section uses concrete to make the flange plate and also serves as the bridge deck; the tension area uses steel bars or prestressed steel bars to bear the tension. The flexural strength of the T-beam and the rectangular beam is basically the same, but it can save concrete and reduce the weight of the component. The spanning ability is improved, but the joints between the T-beams are prone to structural damage, which greatly reduces the bite force between the T-beams and the force transmission effect. When the joints are completely destroyed, the most unfavorable The stress state of the single beam caused the deflection of the beam body and cracks in the beam ribs, resulting in serious damage to the bridge

Method used

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  • T-beam reinforcing structure and construction method thereof
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Embodiment Construction

[0022] figure 1 It is a structural schematic diagram of the present invention, figure 2 for figure 1 Enlarged view at A place of , as shown in the figure: the T-beam reinforcement structure of this embodiment includes two steel box girders 1 arranged on both sides of the bridge cross bridge and the top surface of each T-beam that is close to the bridge and fixed For the upper steel plate 2 of the two steel box girders 1, the T-shaped girder bridge is reinforced by the two steel box girders 1 and the upper steel plate 2 fixed on the two steel box girders 1, so that the internal force borne by the original T girder is reduced.

[0023] In this embodiment, it also includes the lower connecting piece 3 arranged under each T beam and fixed to the two steel box girders 1, further strengthening the connection strength between the two steel box girders 1, improving the reinforcement performance, and the lower connecting piece 3 and A certain gap is left between each T-beam, which w...

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Abstract

The invention discloses a T-beam reinforcing structure and a construction method thereof. The T-beam reinforcing structure comprises two steel box beams transversely arranged at the two sides of a bridge beam and an upper steel plate which is attached to the top faces of T-beams of the bridge beam tightly and fixed to the two steel box beams. By means of the T-beam reinforcing structure and the construction method thereof, the transverse integrity of the T-beam bridge can be improved after the T-beams are reinforced, the internal force borne by original T-beams is reduced, the situation that force is borne by a single beam is avoided, and the bearing capacity of the whole bridge is improved.

Description

technical field [0001] The invention relates to bridge construction, in particular to a T-beam reinforcement structure and a construction method thereof. Background technique [0002] A girder bridge whose load-bearing structure is composed of reinforced concrete flanges and girder ribs is called a T-girder bridge. The compression area of ​​the T-beam section uses concrete to make the flange plate and also serves as the bridge deck; the tension area uses steel bars or prestressed steel bars to bear the tension. The flexural strength of the T-beam and the rectangular beam is basically the same, but it can save concrete and reduce the weight of the component. The spanning ability is improved, but the joints between the T-beams are prone to structural damage, which greatly reduces the bite force between the T-beams and the force transmission effect. When the joints are completely destroyed, the most unfavorable The stress state of the single beam caused the deflection of the b...

Claims

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Application Information

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IPC IPC(8): E01D2/00E01D22/00E01D24/00
Inventor 张江涛周志祥曹晓川
Owner 张江涛