Concrete hollow slab bridge strengthened by transverse integral clamping connection

Abstract

The invention discloses a concrete hollow slab bridge strengthened by transverse integral clamping connection. The concrete hollow slab bridge comprises a hollow slab beam, upper strengthening parts, lower strengthening parts and connecting parts, wherein the hollow slab beam is formed by parallel arrangement of hollow slabs, upper strengthening parts and lower strengthening parts are arranged on the upper surface of the hollow slab beam and the lower surface of the hollow slab beam correspondingly, and upper strengthening parts and lower strengthening parts are clamped along an upper direction and a lower direction through connecting parts so as to conduct transverse integral clamping connection strengthening on the hollow slab beam. According to the concrete hollow slab bridge strengthened by transverse integral clamping connection, hollow slabs are clamped into a whole transversely through pairs of strengthening parts which are arranged on top surfaces of hollow slabs and bottom surfaces of hollow slabs and connecting parts which are fixedly connected between corresponding upper strengthening parts and lower strengthening parts, so that the transverse integral strengthening of the concrete hollow slab bridge is achieved, the transverse integral structure performance of the concrete hollow slab bridge can be effectively improved, single-plate stressing is avoided, the implementation is convenient, the quality can be guaranteed, and the service life of the bridge can be prolonged.

Description

technical field [0001] The invention relates to a bridge construction, in particular to a concrete hollow slab bridge reinforced by transverse integral clamping. Background technique [0002] Concrete hollow slab bridge is a kind of bridge with hollow slab spanning structure along the bridge direction. It has the advantages of convenient construction, low engineering cost and standardized centralized prefabrication production. However, concrete hollow slab bridges are prone to structural defects. Caused by the destruction of the hinge joint between the plate and the plate, the bite force between the plate and the plate is greatly reduced, the force transmission effect is greatly reduced, and the lateral distribution coefficient of the single plate load is increased. When the hinge joint is completely destroyed, the most unfavorable The stress state of the veneer. [0003] At present, the diseases of hollow slab bridges are mainly fixed on both sides of the repaired bridge v...

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Problems solved by technology

[0002] Concrete hollow slab bridge is a kind of bridge with hollow slab spanning structure along the bridge direction. It has the advantages of convenient construction, low engineering cost and standardized centralized prefabrication production. However, concrete hollow slab bridges are prone to structural defects. Caused by the destruction of the hinge joint between the plate and the plate, the bite force between the plate and the plate is greatly reduced, the force transmission effect is greatly reduced, and the lateral distribution coefficient of the single plate load is increased. When the hinge joint is completely destroyed, the most unfavorable The stress state of the veneer

[0003] At present, the diseases of hollow slab bridges are mainly fixed on both sides of the repaired bridge vertically with splints, and then the splints on both sides are stretched through the bridge bottom surface or transversely through the interior of the bridge to realize the hollow slab. The external or internal forces of the bridge are laterally clamped and reinforced to increase the pressure between two adjacent hollow plates, thereby increasing the occlusal force, and making the plates work together. It is more convenient to lay the cables on the bottom of the bridge, but the bridge Tension will be generated on the top surface, and the structural stability is poor; when the cables run through the interior of the bridge, holes need to be opened horizontally on each hollow slab, which requires a large amount of construction, high cost, and is not easy to implement. structural strength, and when external or internal forces are used to clamp and reinforce the structure laterally, if the hinge joint is damaged again or the contact surface between two adjacent hollow plates is worn and deformed, the cable will loosen and the lateral clamping of the splint to the bridge will be caused. The tight reinforcement effect fails, and the long-term reliability is poor, which is not conducive to quality assurance

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