Stone arch bridge structure compositely strengthened by aid of grooved arch ribs

Abstract

The invention discloses a stone arch bridge structure compositely strengthened by the aid of grooved arch ribs. The stone arch bridge structure comprises a stone main arch and the two grooved arch ribs. The two grooved arch ribs are respectively arranged on two transverse sides of the stone main arch, the cross sections of the grooved arch ribs are grooved, and two transverse side surfaces of the stone main arch are respectively correspondingly embedded in grooves of the two grooved arch ribs. The stone arch bridge structure has the advantages that the two grooved arch ribs are clamped on the two sides of the stone main arch to form the compositely reinforced and strengthened structure, the grooved arch ribs are reliably combined with the stone main arch, the actual axis of the stone main arch is restrained, and deviation between the actual axis of the stone main arch and the original designed theoretical arch axis is prevented; both positive bending moment and negative bending moment of the stone main arch are reinforced by wing panels of the grooved arch ribs, a good reinforcing effect is realized, a stone arch bridge is reinforced, the bearing capacity of the stone arch bridge can be obviously improved, unpredicted damage to the stone arch bridge is prevented, the self weight of the reinforced structure can be reduced, further damage to the original stone main arch due to bar planting construction measures in the prior art is prevented, the safe usage of the bridge is guaranteed, and the stone arch bridge structure has an obvious technical and economic comprehensive benefit.

Description

technical field [0001] The invention belongs to the field of building structures and bridge road engineering, and in particular relates to a stone arch bridge structure reinforced by groove-shaped arch ribs. Background technique [0002] Stone arch bridge is one of the more sturdy and durable bridges, and it is simple to build and relatively low in cost. It is often used in mountainous areas and areas with small spans. In actual use, due to the more joints in the bridge structure, the greater the possibility that the actual working state of the bridge deviates from the ideal design state, and the worse the reliability of the structure. The joints of the stone arch bridge are completed by many people at different times and under different environmental conditions. It is difficult to measure the interface treatment, joint materials, technology and quality by the standard of the standard. The joints of the main stone arch structure and After a long period of weathering and inf...

AI Technical Summary

Problems solved by technology

[0009] c If it is considered that it is easy to ensure the construction quality and significantly increase the bearing capacity, the thickness of the outsourcing concrete should be a larger value; however, since the self-weight of the outsourcing concrete will be fully borne by the original stone arch ring, the increase in load may lead to the development of disease on the original main arch ring ; The outsourcing concrete only bears the live load part with the original main arch ring, and the internal force shared by the original main arch ring is actually relatively weak, so the project volume is large, but the technical and economic benefits are not obvious

If the thickness of the outsourcing concrete is small, the construction quality of thin-layer concrete is difficult to guarantee, and the structural reliability is poor

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