Guiding and correction device for arch healing

Abstract

The invention discloses a guiding correction device for folding an arch, which comprises a tenon and a mortise corresponding to the tenon, wherein the tenon and the mortise are longitudinally arranged on two end faces of the arch to be folded; the cross-sectional area of the end part of the tenon is smaller than that of the root part of the tenon; and the cross-sectional areas from the end part to the root part of the tenon have a smooth transition from small to big. The guiding correction device can make use of the gravities of two half arches to perform adjustment and correction automatically when the arch is folded, so that the construction difficulty is reduced and the construction cycle is greatly shortened; two parallel arches or a plurality of arches can be folded simultaneously without using steel cables to fix the two half arches to be folded transversely, thus the manpower and material resources are greatly reduced and the construction cost is saved, the transition for folding sections is not needed; only one joint seam is formed after the folding; besides, the tenon has certain supporting function, and the strength of the folded arch is higher than that of the arch folded by the prior art.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a guiding and correcting device for closing bridge arches. Background technique [0002] Arch bridge refers to a bridge with an arch as the main load-bearing member of the upper structure in the vertical plane. It is the earliest invention and construction in my country. Arch bridge is the most commonly used type of bridge in my country, especially for highway bridges. During the construction of an arch bridge, the closure of the arch is the most technically difficult and most complicated construction process, and is the most important factor in determining the construction period of the bridge. [0003] In the prior art, the arch closure mainly adopts the following methods: vertically install the arch ribs of the arch foot section at the abutments on both sides of the bank, and then perform temporary consolidation after the lower end of the arch ribs and...

AI Technical Summary

Problems solved by technology

[0004] The above construction process has the following disadvantages: 1. The horizontal plane or / and the direction perpendicular to the horizontal plane between the two half-arches are usually not aligned, and adjustment is required. The adjustment process is complicated and takes a long time; In addition to the above-mentioned problems that cannot be aligned, there is also the problem that the cross-sectional shapes are staggered by a certain angle. After this problem occurs, the adjustment process is more complicated, and sometimes it is even impossible to align; There is a closing section (transition section) between them, which will affect the appearance when the two half-span arches are not completely aligned, and there are two seams, which will have an adverse effect on the strength of the closed arch; 4. It is impossible to carry out parallel double arches or Multiple arches are closed at the same time, and the alignment problem of single arches is obvious when they are closed. Since the parallel double arches or multiple arches have been fixedly connected by tie beams before closing, simultaneous closing cannot be performed.

The above problems have seriously affected the smooth progress of the construction, making it impossible to carry out follow-up projects, greatly prolonging the construction period of the bridge, and also affecting the appearance and strength of the arch

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