Deformable joint structure of concrete trestle floor

Abstract

A deformable connection structure of concrete trestle floors, in which there is a deformation joint of a certain width between two trestle floors; the lower end surface of the junction of the trestle floors is sealed with a full length of iron sheet; the lower end surface is connected to the iron sheet at the deformation joint The length between them is greater than the actual length of the deformation joint, that is, there is a certain surplus of the iron sheet connected to the lower end surface; the deformation joint is filled with asphalt hemp; The length of the iron sheet connecting the end face between the deformation joints is greater than the actual length of the deformation joint, that is, the upper end face connecting iron sheet has a certain surplus; a waterproof membrane is attached to the iron sheet to play a secondary waterproof role; cement mortar pads are laid on the waterproof membrane layer, and the deformation joints on the waterproof membrane are blocked with asphalt mawangdi grease material. The invention can meet the demand for deformation joints in large-scale projects, and at the same time play the roles of settlement, shockproof, expansion and contraction, and improve waterproof performance.

Description

technical field [0001] The invention relates to a building wall connection structure, in particular to a deformable connection structure for concrete trestle floors. Background technique [0002] Trestle is a station, port, mine or factory, used for loading and unloading goods or getting on and off passengers, or a temporary bridge structure specially used for construction site traffic, mechanical layout and overhead operations. In civil engineering, temporary bridge facilities built for transporting materials, equipment, and personnel are divided into wooden trestle bridges and steel trestle bridges according to the materials used. The trestle in a railway ferry is a bridge building for rolling stock to drive on and off the ferry. [0003] At present, the trestle structure composed of steel structure and concrete is widely used in railway engineering, tunnel construction, electric power engineering and other fields. Trestle bridges spliced ​​by multiple concrete beam stru...

AI Technical Summary

Problems solved by technology

However, the steel nail-fixed connection structure used in the prior art cannot meet the requirements of building settlement, earthquake resistance, and expansion and contraction

Moreover, due to water seepage at the joint, the metal and adhesive of the joint structure are easy to age, which directly affects the service life of the concrete trestle.

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