A combined square-shaped aluminum alloy overpass

Abstract

The invention relates to a combined cross-shaped aluminum alloy overpass, which includes four main trusses, four transitional trusses, sidewalk slabs and multiple stairs, the four main trusses are distributed in a square shape, and two adjacent main trusses are connected by transitional trusses , one end of the staircase is set on the main truss through the support, and the other end is set on the ground; both the main truss and the transition truss include the inner facade, the outer facade and the support frame, and the inner facade and the outer facade are connected by the support frame Together, the inner facade of the main truss and the inner facade of the transition truss are connected together through the support, and the outer facade of the main truss and the outer facade of the transition truss are connected together through the support. The support includes the bottom steel plate, the upper steel plate And the middle rubber bearing, the bottom steel plate and the upper steel plate clamp the middle rubber bearing in the middle, and the bottom steel plate and the upper steel plate are connected together by bolts. The invention not only solves the deficiency of the steel structure bridge, but also can effectively relieve street congestion and improve the traffic capacity of the road.

Description

technical field [0001] The invention relates to a combined square-shaped aluminum alloy overpass. Background technique [0002] At present, pedestrian bridges mainly use steel structures or single-span aluminum alloy pedestrian bridges. The advantages of steel structure bridges are obvious, but steel pedestrian bridges have relatively large deadweight, low bearing capacity, and steel materials are easy to corrode. The residual value is low, and it is generally faced with durability problems and high maintenance costs caused by corrosion. [0003] The light weight, high strength, corrosion resistance, low maintenance cost and recyclability of aluminum alloy materials in single-span aluminum alloy pedestrian bridges solve the shortcomings of steel structure bridges, but for streets with large traffic, the effect is not obvious and cannot be very good solve the congestion problem. [0004] Welding is more common in the application of bridges in the past. Although the welding ...

AI Technical Summary

Problems solved by technology

[0002] At present, pedestrian bridges mainly use steel structures or single-span aluminum alloy pedestrian bridges. The advantages of steel structure bridges are obvious, but steel pedestrian bridges have relatively large deadweight, low bearing capacity, and steel materials are easy to corrode. The residual value is low, and it also generally faces the problem of durability and high maintenance cost caused by corrosion

[0003] The light weight, high strength, corrosion resistance, low maintenance cost and recyclability of aluminum alloy materials in single-span aluminum alloy pedestrian bridges solve the shortcomings of steel structure bridges, but for streets with large traffic, the effect is not obvious and cannot be very good to solve the congestion problem

[0004] Welding is more common in the application of bridges in the past. Although the welding method can effectively connect the parts, the strength of the base metal will drop to 60% of the original strength after welding.

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