Non-self-balancing steel truss long-span arch bridge swivel and its construction method

Abstract

The invention discloses a non-self-balancing steel truss large-span arch bridge rotation body, which comprises a base platform, a lower grinding disc is arranged on the surface of the base platform, the surface of the lower grinding disc is set as a conical surface, and a central pillar is arranged in the middle, and the surface of the conical surface is The isolation layer and the lubricating layer are coated in sequence. There is also a slideway on the base platform around the lower grinding table. There are a number of buttresses on the slideway. There is also an upper rotary table on the lower grinding table. The bottom is provided with a groove with the same shape as the lower grinding disc and the central pillar. The bottom of the upper turntable is also connected to the top of the pier. There is an overhead space between the bottom of the upper turntable and the base platform. The construction method is: Step 1) Preparation The base platform and the lower grinding disc; step 2) grinding the lower grinding disc; step 3) preparing the pier reinforcement; step 4) preparing the upper turntable. The invention has a relatively simple structure and is completely formed by pouring concrete, has low cost and is easy to popularize.

Description

technical field [0001] The invention relates to the construction field, in particular to a non-self-balancing steel truss long-span arch bridge swivel and a construction method thereof. Background technique [0002] As the pace of urban development accelerates, the pressure on traffic is increasing. In recent years, various types of long-span bridges across rivers, rivers, and major traffic arteries and waterways in cities have been constructed in full swing, especially with steel truss structures. The development of bridges is relatively rapid. How to carry out the construction of the bridge without affecting the normal traffic of the main traffic roads and waterways under the planned bridge and with almost no interference in the whole process is the most important link. [0003] Some existing methods use parallel conveying to dock the bridge body, but this method can only be used for small-span river surface construction, and the power mechanism and track used for driving...

AI Technical Summary

Problems solved by technology

[0003] Some existing methods use parallel conveying to dock the bridge body, but this method can only be used for small-span river surface construction, and the power mechanism and track used for driving need to be specially customized, which is expensive

There are also some construction methods that use cable suspension bridges, but this method cannot guarantee that the vehicles and ships below are completely unrestricted, and it is also necessary to restrict the operation of the waterway from time to time, causing traffic inconvenience

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