Small box beam bridge

Abstract

The invention belongs to the field of buildings, and in particular relates to a small box beam bridge. The bridge comprises two small box beams which are connected transversely; a groove is formed in the connection position of flange plates of the two small box beams; the flange plate is prepared from carbon steel, tert-butyl methacrylate, cyclopentylmethyl decanoate, (1R,3S)-1,2,2-trimethyl-1,3-cyclopentane dicarboxylic acid, 1-methylcyclopropanemethanol, alpha-methylene-gamma-butyrolactone and the like through pouring, cooling and pressing processes. The small box beam bridge is convenient and safe in construction and building and high in construction process continuity, and effectively shortens the closing time of a road; a prefabricated steel plate is placed in the groove, so leakage and falling objects can be prevented, construction safety is guaranteed, and the strength of the bridge can be improved. In addition, the flange plate of the box beam has high strength and tolerance, the box beam is connected more stably, the built bridge has high safety coefficient, and the bridge is suitable for popularizing in the field of bridge application.

Description

Technical field [0001] The invention belongs to the field of construction, and specifically relates to a small box girder bridge. Background technique [0002] At present, with the increasing number of vehicles, roads and railways have begun to develop from the ground to the air, forming more and more pavement bridge projects. However, there are a lot of problems with the pavement bridge structure. For example, the bridge design load is "medium-live load". "If the live load factor is too large, the safety reserve of the bridge will be greatly reduced, and long-term operation will have a greater negative impact on the safety of the bridge; the long-term load of trains and large passenger and freight vehicles will aggravate the fatigue damage of the bridge structure. The fatigue performance of the bridge shortens the service life of the bridge. [0003] Box girder, a kind of girder in bridge engineering, is hollow inside, with flanges on both sides of the upper part, which resemble...

AI Technical Summary

Problems solved by technology

For example, when the joints are wet in place, concrete grout or even steel plate related parts may fall under the bridge, posing a threat to passing vehicles and posing a major safety hazard. The strength of the steel plate gradually decreases with the increase of service time. Forces drop, bridges overwhelmed

Due to such potential safety hazards, the construction unit will apply to the relevant road departments to close the roads with safety threats, which will bring huge traffic pressure to adjacent roads; bridges also need frequent maintenance