Assembly type steel structure-concrete combined bridge and construction method thereof

Abstract

The invention relates to an assembly type steel structure-concrete combined bridge and a construction method thereof, and relates to the technical field of bridge construction. The assembly type steelstructure-concrete combined bridge comprises concrete piers and steel frame girders, wherein the side walls of the two sides of the concrete piers are correspondingly provided with placing grooves, the steel frame girders comprise steel girder supporting devices, steel girder bearing devices and steel girder plates, the bottoms of the placing grooves are connected with elastic blocks, and the elastic blocks are connected with the steel girder supporting devices; and male inserting plates and female inserting plates are arranged on the lower surfaces of the two steel girder plates on the sameconcrete pier correspondingly, the female inserting plates are matched with the male inserting plates in an inserted mode, the short edges of the female inserting plates and the short edges of the male inserting plates are connected with elastic parts, and the elastic parts extend to the part between the two steel girder plates and are connected with the opposite sides of the two steel girder plates. According to the assembly type steel structure-concrete combined bridge, due to arrangement of the male inserting plates, the female inserting plates, the elastic parts and the elastic blocks, theprobability of being damaged between the adjacent steel frame girders and between the steel frame girders and the concrete piers is reduced, the integral structure of the bridge is stable, and the probability of being damaged under the condition of an earthquake or large vibration is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to an assembled steel structure-concrete composite bridge and a construction method thereof. Background technique [0002] Expansion joints are an important part of bridge construction. Under the influence of temperature changes, concrete shrinkage, live load, settlement and creep of bridge piers and other factors, the bridge span structure will be deformed, resulting in displacement of the beam end. In order to adapt to this displacement and maintain the smoothness of vehicles traveling on the bridge, transverse expansion joints must be set between the two ends of the bridge deck and between the beam end and the back wall of the abutment. [0003] The existing bridge expansion joint structure mainly has two forms, one is to use angle steel or channel steel to weld with the pre-embedded steel bar at the end of the bridge deck, and then pour concrete; Desoldering and de...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned technical solution has the following defects: the high molecular polymer has a certain deformation ability, and when the vehicle is pressed on the first steel plate or the second steel plate, it will bend, and the height of the pressed position will be lower than that of the unpressed position. When falling, there will be a dislocation tendency between the first steel plate and the second steel plate. If things go on like this, the first steel plate and the second steel plate will be separated, resulting in damage to the structure; Prone to misalignment, resulting in structural damage

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