Web arch structure reinforced by frame type reinforcing structure

Abstract

The invention discloses a web arch structure reinforced by a frame type reinforcing structure, which comprises a web arch. The web arch is provided with a reinforcing structure, the reinforcing structure comprises a longitudinal rib and a diaphragm plate, the longitudinal rib is poured at the arch top part of the inner side of the web arch along the longitudinal direction of the web arch, and the diaphragm plate is fixedly poured at the inner side of the web arch along the spanning direction of the web arch, and the diaphragm plate and the longitudinal ribs are poured and connected into a whole to form a space reinforcing frame structure of the web arch. A reinforced space frame structure is formed, and the resistance of the web arch structure for resisting various load effects is obviously improved; the main reinforcing steel bars of the reinforced diaphragm plate can effectively restrain the opening deformation of the web arch under load and prevent the expansion of the midspan vertical crack of the web arch; construction is relatively easy and convenient, compared with a reinforced concrete reinforced web arch, the material consumption and the dead weight of the reinforced structure are remarkably reduced, the better reinforcing effect is achieved, damage to the original web arch caused by reinforcing embedded steel bars is reduced, and on-site reinforcing construction operation is remarkably reduced; and compared with sticking of carbon fibers or steel plates, the web arch reinforcing effect is remarkably improved.

Description

technical field [0001] The invention belongs to the field of building structures and bridge road engineering, in particular to a belly arch structure reinforced with a frame-type reinforcement structure. Background technique [0002] The fasting arch bridge is one of the commonly used bridges on mountainous roads. From the structural point of view, the hollow arch bridge is to set the belly arch on the main arch ring of the arch bridge. Generally, the belly arch is supported by the cross wall or column on the main arch structure to support the prefabricated or cast-in-place small-span concrete belly arch slab, and then The bridge deck system of the arch bridge is formed on it, thereby reducing the dead load of the bridge and increasing the area of ​​the bridge's water discharge. Generally, the abdominal arch structure is formed by the rigid connection between the abdominal arch plate and the transverse walls or columns at the two ends of the main arch structure. The arch m...

AI Technical Summary

Problems solved by technology

In the prior art, there are two common ways to strengthen the abdominal arch structure: one is to paste carbon fiber cloth or steel plate on the bottom surface of the abdominal arch. Reinforcement materials will collapse under tension, and it is difficult to achieve the required reinforcement effect; the second is to add a reinforced concrete reinforcement layer on the bottom of the abdominal arch to thicken the abdominal arch structure. The reinforcement will cause great damage to the original abdominal arch structure. The surface is large, the amount of materials used is large, and the self-weight increases a lot

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