reinforced bridge

Abstract

The invention discloses a reinforced type bridge. The reinforced type bridge comprises two steel case beams which are arranged on two sides along a transverse direction of the bridge, transverse partition plate concretes which are formed by cast molding between T beams of the bridge, and opposite-pulling screws which are closely attached to top surfaces of T beams of the bridge are fixed on an upper steel plate of the two steel case beams, pass through connection seams between adjacent T beams and are connected between the upper steel plate and the partition plate concretes; and the opposite-pulling screw rods are connected to the upper steel plate through upper steel springs; The reinforced type bridge can improve transverse integrity of the T-shaped beam bridge, reduces inner force born by the T beam, and avoids single beam under stress; a reinforced structure adopts a semi-rigidity connection, can be adapted to a certain degree of deformation caused by vibration, avoids reinforcement failure caused by minor shaking of the bridge and can improve a carrying capacity of the integral bridge.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a reinforced bridge. 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 leads to the deflection of the beam body and cracks in...

AI Technical Summary

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 leads to the deflection of the beam body and cracks in the beam rib. At present, it has been proposed to use splints and anchors to repair and strengthen the T beam, but rigid connections are used between the reinforcements and between the reinforcements and the bridge. , when a heavy-duty vehicle passes on the bridge or a slight vibration occurs due to other geological reasons, it will cause the reinforcement structure to loosen, resulting in failure of the reinforcement, and serious damage to the bridge over time

Images