Modular telescopic device with adjustable annular steel

Abstract

The invention discloses a modular telescopic device with adjustable annular steel, and belongs to the technical field of bridge structure telescopic devices. The modular telescopic device comprises boundary beams, a center beam, bearing cross beams and boundary beam anchoring assemblies. According to the connecting relation of the boundary beams, the center beam, the bearing cross beams and the boundary beam anchoring assemblies, the boundary beam anchoring assemblies are arranged on the boundary beams, and the annular steel of the boundary beam anchoring assemblies can freely move along cross round steel; U-shaped anchoring steel bars are welded to the two sides of a bearing beam box or a displacement rod box, cross penetrating steel bars penetrate through embedded steel bars and the U-shaped anchoring steel bars, and connecting and anchoring of the displacement rod box and the embedded steel bars are achieved; the center beam is borne on the bearing beam box and connected with the bearing cross beams, an elastic displacement assembly is fixedly connected with the boundary beams or the center beam through the displacement rod box. The mounting efficiency of the modular telescopic device of a bridge can be improved.

Description

technical field [0001] The invention belongs to the technical field of expansion devices for bridge structures, and in particular relates to a modular expansion device with adjustable ring steel. Background technique [0002] With the development of my country's transportation construction, the proportion of bridge engineering in expressway is constantly increasing. As the main accessory component of bridge, bridge expansion device is one of the key structures to ensure the safety of bridge operation and the smooth flow of highway. Among them, the modular expansion device is a kind of expansion device that is widely used at present. However, the current situation of the use of the existing modular expansion device shows that the damage phenomenon of the expansion device is very prominent, and the frequency of replacement is frequent, which brings safety hazards to the highway operation and society. Economic losses. The damage form of the modular expansion device is as follo...

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Problems solved by technology

[0012] In view of this, the purpose of the present invention is to provide a modular expansion device with adjustable ring steel, which can solve the problems of poor anchoring performance, difficulty in construction and installation, and easy breakage of the main beam existing in the prior art. , Displacement system failure and other problems, overcome the shortcomings of the existing technology, in order to prolong the service life of the bridge modular expansion device, avoid the increase in maintenance costs and road safety problems caused by damage to the expansion device, and improve the service level of road bridges

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