Transportation Technology of Long-span Structural Slabs

Abstract

A transportation process for a large-span structural piece, which adopts the following steps: 1: Prefabricate the large-scale structural piece; 2: Arrange several hydraulic jacking devices at the jacking point below the large-scale structural piece; 3: Lift the large-scale structural piece After reaching the specified height, install a temporary support under it; 4: Connect the transport frame with the trolley axis of the automatic power hydraulic flatbed; 5: Drive the automatic power hydraulic flatbed under the large structural piece, lift it up and transport it out of the workshop to the pre-outfitting Loading site; 6: Evacuate the automatic power hydraulic flatbed truck and support it with temporary supports; Seventh: Drive the automatic power hydraulic flatbed truck under the large structural piece, lift up the large structural piece and transport it to the spraying workshop; Eighth: Finish the spraying of the large structural piece Finally, the painted large-scale structural pieces are transported from the spraying workshop to the final assembly site for final assembly. The invention solves the problem that the existing field transportation vehicles cannot realize the transportation operation of the large-span structural piece, and realizes the safe and efficient transportation operation.

Description

technical field [0001] The invention relates to a transport process, in particular to a transport process for a large-span structural piece of an onshore liquefied natural gas module. It belongs to the field of offshore oil engineering. Background technique [0002] During the construction of a large-scale LNG modular processing plant, due to the similar structure and weight of the central pipe gallery modules, in order to achieve integrated clean construction, usually, a deck is divided into several structural pieces according to the span of its axis. In this way, the more structural pieces, the greater the workload of final assembly and the extension of the construction period. Therefore, in the process of module construction, the workload of workshop prefabrication should be increased as much as possible to reduce the workload during final assembly. However, new problems arise from this. Since the structural fragments have more hinge nodes and the span of the fragments i...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and provide a transport process for large-span structural pieces, which can not only realize the transportation of multi-articulated, long-span structural pieces, but also solve the problem of the existing field transportation vehicles. The transportation operation problem of large-span structural pieces cannot be realized; moreover, in the transportation process, the transportation mode of partial axes is replaced by the transportation frame, which greatly reduces the investment of the axes, saves the resources of the axis of the trolley, and thus saves the cost of automatic power hydraulic flatbed trucks. In addition, it also realized safe and efficient transportation operations, improved the logistics efficiency of site structural sheet transportation, and greatly shortened the construction period while reducing transportation costs

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