A device and method for quickly constructing a large-span lightweight emergency bridge

Abstract

The invention provides a device for quickly constructing a large-span lightweight emergency bridge, which includes an auxiliary guide beam, a ballast device and a pushing device; the auxiliary guide beam is a composite material guide beam; the ballast device includes a square bridge with an open bottom Steel frame, a set of steel sheet piles, a set of steel wire ropes and a set of rollers; the pushing device includes a drive motor and a set of pulleys, the drive motor is connected to the rollers, and the set of pulleys is fixed to the auxiliary guide beam and / or emergency The bottom of the main girder of the bridge. The invention also provides a method for quickly constructing a large-span lightweight emergency bridge. The device has the advantages of simple structure, convenient transportation, simple assembly, quick and reliable erection, and the composite material truss bridge can be erected in places with narrow sites and inconvenient transportation.

Description

technical field [0001] The invention belongs to the field of bridge equipment, and particularly relates to a device suitable for rapidly constructing a large-span lightweight emergency bridge during emergency rescue and disaster relief, and also relates to a method for rapidly constructing a large-span lightweight emergency bridge. Background technique [0002] With the rapid development of the economy, my country's road and bridge industry has made great progress. As an important carrier of economic development, bridges are extremely important in terms of strength and stability. In recent years, earthquake disasters have occurred frequently in some areas of our country, and many bridges have been seriously damaged under the action of earthquakes, which not only brought huge property losses, but also threatened the lives of the people. After the earthquake disaster, strong seismic waves caused roads to be buried or collapsed, bridges and tunnels were damaged, and traffic wa...

AI Technical Summary

Problems solved by technology

However, there are many difficulties in erecting emergency bridges after earthquakes. Usually, they can only be erected from one end. In order to avoid overturning, the end must be weighed, usually using sandbags, vehicles, etc. In this way, the bridge The bottom must also be pushed on the road; however, using methods such as sandbag weight, vehicle weight, and direct ground push can easily cause damage to composite bridges

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