A cross-bracing structure between arches capable of controlling length indentation and construction method thereof

Abstract

The invention provides an inter-arch transverse strut structure capable of controlling length indentation, comprising arch ribs on both sides, at least one transverse strut segment, and a pair of hydraulic devices arranged symmetrically up and down and used to control the length indentation of the transverse strut segment. A rotating hinge is arranged between the arch rib on both sides and the cross brace segment, so as to adapt to the change of the angle between the arch rib and the cross brace when the arch rib rotates laterally. The invention has reasonable design, simple structure, convenient construction, is compatible with the new lateral swivel construction method, and has good practical value and economic benefit.

Description

technical field [0001] The invention relates to an inter-arch transverse strut structure capable of controlling length indentation and a construction method thereof. Background technique [0002] With the increasing development of national infrastructure construction, the span of the arch bridge is gradually increasing, and the construction of the arch rib is the first technical problem to be solved. At present, there are two common construction methods of arch rib: bracket method and non-bracket method. The bracket method is often used for masonry arch bridges, but usually requires a large number of arches as temporary supports. The removal process of the arch is complicated, the construction cost is high, and the It is difficult to apply to complex terrain such as deep valleys; the construction without brackets is divided into swivel construction method and cantilever construction method. Among them, the swivel construction method is the most widely used, but when the span...

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Problems solved by technology

At present, there are two common construction methods for arch ribs: the bracket method and the non-support method construction: the bracket method construction is often used in masonry arch bridges, but usually requires a large number of arch frames as temporary supports, and the demolition process of the arch frames is complicated and the construction cost is high. Difficult to apply to complex terrain such as deep valleys; the construction method without support is divided into swivel construction method and cantilever construction method, among which the swivel construction method is the most widely used horizontal rotation method, but when the span of the arch bridge increases and the arch rib is too long, the rotation is not easy Control; the cantilever construction method cantileverly constructs two half-arches from the arch foot to the vault top, and finally closes the dragon at the vault top. Long, and requires a lot of high-altitude operations, there is a greater safety risk

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