Traction sliding system and construction technology for erecting prefabricated crane beam in power plant

Abstract

The invention relates to a traction sliding system and construction technology for erecting a prefabricated crane beam in a power plant. The traction sliding system comprises a supporting sliding unitand a sliding unit, wherein the supporting sliding unit is arranged between a first span and a second span, and the sliding unit is arranged from a third span to a tail end, and the sliding unit witha single span jointly forms the siding system of the crane beam. The construction technology comprises the steps that on the basis of the siding system, the crane beam is first suspended on a beam body placing platform between the first span and the second span, and then the crane beam is slid into position by the traction sliding method. According to the aim, the invention provides the tractionsliding system and construction technology for erecting the prefabricated crane beam in the power plant in view of the prior art and the on-site actual environment and conditions, the installation andemplacement of the crane beam is completed in the condition that the crane dose not enter a main plant installation platform, the construction progress of a plant main structure is accelerated, and the work, such as erection and demolition of a high-altitude supporting platform under the cast-in-place technology of the crane beam, is avoided, and the prefabrication of the crane beam is completedahead of schedule.

Description

technical field [0001] The invention relates to the field of hydroelectric power generation, in particular to the field of erection of prefabricated beams without direct hoisting, and in particular to a traction and sliding system and construction technology for the erection of prefabricated crane beams in power plants. Background technique [0002] Concrete crane beam structures are involved in many projects, including single-span beams and continuous multi-span beams. At present, the crane girders of all power plants are generally cast-in-place and prefabricated in place, and the lifting means and work site can be guaranteed when the prefabricated beam hoisting process is adopted. However, due to the geographical location of some factories, the maximum lifting capacity is limited (maximum 50t), and the beam body cannot be hoisted directly; The high-altitude scaffolding inside will affect the normal construction in the main engine pit at the bottom, and at the same time, t...

AI Technical Summary

Problems solved by technology

However, due to the geographical location of some factories, the maximum lifting capacity is limited (maximum 50t), and the beam body cannot be hoisted directly; The erection of high-altitude scaffolding will affect the normal construction in the main engine pit at the bottom, and there are certain safety risks, that is, the erection of the crane beam of the power plant cannot be completed on schedule with the existing cast-in-place and prefabricated hoisting technology

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