Novel bridge reinforcing device based on high-performance steel fiber reinforced concrete

Abstract

The invention discloses a novel bridge reinforcing device based on high-performance steel fiber reinforced concrete. Pier column, a main beam is fixedly mounted on the upper side of the pier column; areinforcing beam is mounted between the pier columns; adjusting devices are uniformly mounted on the upper side of the reinforcing beam; a jacking column is installed in the adjusting device, the adjusting device comprises a base, a step groove is formed in the lower side in the base, a lower ring of a bearing is fixedly installed on the upper side of a shoulder of the step groove, a worm wheel is fixedly installed on the upper side of an upper ring of the bearing, the rear side of the worm wheel is meshed with a worm, and the worm is rotationally installed in the step groove through a rotating shaft. Compared with the prior art, the device can support and reinforce the main beam through cooperation of the reinforcing beam, the adjusting device and the jacking column, the supporting forcecan be adjusted according to needs, a large number of bolts are prevented from being used on the main beam, structural damage to the main beam is reduced, and the reinforcing effect is improved.

Description

Technical field [0001] The invention relates to the technical field of bridge equipment, in particular to a new type of bridge strengthening device based on high-performance steel fiber concrete. Background technique [0002] High performance steel fiber concrete is a new type of multiphase composite material formed by mixing short steel fibers distributed randomly in ordinary concrete. These chaotically distributed steel fibers can significantly improve the tensile, flexural, impact and fatigue resistance of concrete, have good ductility, and can have beneficial effects when used in bridge reinforcement operations. [0003] The old bridges currently in use, due to improper design, poor construction quality, or reduced durability, are likely to cause cracks in the bridge, and there are hidden safety hazards. The existing technology mostly uses the method of installing connectors and support rods on the main girder. Reinforce to improve the stability, but in the process of reinforc...

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Problems solved by technology

[0003] The old bridges currently in use, due to problems such as improper design, poor construction quality or reduced durability, are likely to cause cracks in the bridge and pose potential safety hazards. The existing technology mostly adopts the method of installing connectors and support rods on the main girder. Reinforcement to improve stability, but in the process of reinforcement, a large number of bolts will be installed on the main beam, which will damage the structure of the main beam, and the reinforcement effect is not ideal. In order to solve the above problems, we propose a new type of bridge based on high-performance steel fiber reinforced concrete Reinforcement device

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