Experimental model for researching steel box beam deck pavement materials and technology and combination method

Abstract

The invention discloses an experimental model for researching steel box beam deck pavement materials and a technology. The experimental model comprises a crossing body and a pair of supporting bodies;the pair of supporting bodies comprise the first supporting body and the second supporting body which are of a trapezoid structure; the first supporting body and the second supporting body are symmetrically arranged on the two sides of the crossing body; and the inclined planes of the trapezoid structures and the two sides of the crossing body are connected in a transition mode to form an arc-shaped arch structure with an opening facing downwards. The combinationmethod comprises the following steps that the pair of supporting bodies are cast by steel bars and concrete and kept in maintenancetill the design strength is reached; the crossing body is manufactured, and it is ensured that joints are dense; the installation positions of the pair of supporting bodies are fixed; the manufacturedcrossing body is hoisted to the position above the supporting bodies by a mechanical hoisting device; and the crossing body and the supporting bodies are fixed and combined. The designed experimentalmodel is simple in structure, can adapt to different steel box beam deck pavement materials and experiments of the construction technology, and can guaranteeto be close to actual service conditions.

Description

technical field [0001] The invention belongs to the intersection fields of municipal administration, industrial design and materials, and in particular relates to a test model and a combination method for studying steel box girder bridge deck pavement materials and techniques. Background technique [0002] With the continuous development of urban transportation construction, three-dimensional transportation is one of the main directions of current and future urban development. The typical representative is the continuous emergence of urban viaducts. However, due to the shortcomings of concrete viaducts such as complicated construction process, heavy slab surface weight, and difficulty in large-span construction, more and more urban viaduct projects use prefabricated, smaller self-weight, and convenient construction steel box girders to replace traditional concrete girders. . Therefore, along with the application of steel box girders, viaduct deck pavement has become a new t...

AI Technical Summary

Problems solved by technology

Obviously, it is not scientific to copy such research results to the construction of steel box girder bridge decks, mainly because the stress propagation conditions of steel box girders are completely different from those of ground roads and concrete bridge decks. During the pavement construction process, heavy machinery and equipment such as pavers and road rollers will cause bridge deck vibration, which generally does not happen during the construction of concrete bridge decks or ground road surfaces.

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