Construction device and method for large-span steel girder frame connection platform

Abstract

The invention discloses a construction device and method for a large-span steel girder frame connection platform. The device comprises a trolley (1) and operation baskets (2), wherein the top of the trolley (1) is connected with the tops of the operation baskets (2) through a winch (3); a guide rail (6) is arranged at the bottom of each operation basket (2); each guide rail (6) is provided with a second electromagnet and a third electromagnet (8). The method is characterized in that the trolley (1) and the two operation baskets (2) form a tripod-like structure and clamp a main girder (9) or a secondary girder unit to move at a normal section of the main girder (9) or the secondary girder unit; when the trolley (1) arrives at each node, the operation baskets (2) are lifted through the winch (3) so that the operation baskets (2) can be flush with the bottom face of the trolley (1) and pass through the node. By means of the construction device and method, consumption of steel tubes and fasteners can be reduced, construction cost and labor intensity can be lowered, operation is convenient and fast, the construction period is shortened, the construction space below the platform is not occupied, and potential safety hazards are eradicated.

Description

Technical field [0001] The invention relates to a construction technology of a large-span steel beam frame-connected platform in the field of civil engineering, in particular to a construction device and a construction method of a large-span steel beam frame-connected platform. Background technique [0002] Large-span (generally a span of more than 30m) steel beam frame connected platform includes a platform frame formed by connecting and fixing multiple parallel main beams and multiple parallel and perpendicular secondary beams, main beam and secondary beam The top surface is flush; each main beam is a complete steel beam, and its two ends are respectively fixed on the surrounding concrete structure that has been poured. Specifically, the surrounding concrete structure refers to the poured concrete side walls and columns. Or floor slab, pre-embedded steel corbels on the surrounding concrete structure, the two ends of the main beam are welded and fixed with two steel corbels resp...

AI Technical Summary

Problems solved by technology

The construction device and construction method of this prior art have the following defects: the steel pipes and fastener materials that are put into the full hall scaffold at one time are many, the consumption is large, and the construction cost is high; It takes a long time and the construction period is long; moreover, the support is dense and occupies all the space under the large-span steel beam frame connection platform, making the space below unusable for a long time; what's more, the support is high, easy to lose stability, and has great safety Hidden danger

From the above analysis, it can be known that the erection of scaffolding for welding construction requires many steel pipes and fasteners, a large workload, and time-consuming and laborious installation and disassembly. Moreover, the most important thing is that the operation is suspended at high altitude. The actual operation is extremely difficult and the construction speed is slow. , low efficiency and great security risks

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