PK prestressed concrete composite slab lifting appliance and lifting method adopting same

Abstract

The invention discloses a PK prestressed concrete composite slab lifting appliance and a lifting method adopting the same. The lifting appliance comprises a telescopic support tube and two lifting hooks mounted at the left end and the right end of the support tube respectively; a lifting ring is arranged at one end of each of the lifting hooks, the other ends of the lifting hooks bend outwards to form lifting hook bending parts; the upper ends of the lifting hooks are detachably connected with the telescopic support tube; the lifting method comprises the following lifting steps: S1, mounting and fixing the upper ends of the lifting hooks at the two ends of the telescopic support tube; S2, enabling the lifting hook bending parts to be aligned with corresponding PK slab rib holes, inserting the lifting hook bending parts into the corresponding slab rib holes and further using fixing clamping pieces to fix the tail ends of the lifting hook bending parts on a PK base plate; S3, adopting a steel wire rope for connecting the lifting appliance with the lifting hooks of a lifting machine; S4, inspecting whether the connection at the connecting points of the lifting hooks is firm or not, and starting the lifting machine for lifting. According to the PK prestressed concrete composite slab lifting appliance and lifting method adopting the same, the self-made lifting appliance is adopted for lifting PK slabs, so that not only is the manufacturing cost of the lifting appliance reduced, but also the lifting time is shortened.

Description

technical field [0001] The invention relates to the technical field of PK board hoisting in building floor construction, in particular to a PK prestressed concrete composite slab hanger and a hoisting method using the hanger. Background technique [0002] PK prestressed concrete laminated slab is referred to as PK slab, which is often used in the laying of floors. It uses concrete prefabricated thin slabs with ribs as the bottom plate, and oval holes are reserved on the ribs, and transverse non-prestressed steel bars are inserted in the holes, and then laminated concrete is poured to form an overall two-way stressed floor. When laying the floor slabs, it is necessary to hoist the PK boards one by one to the corresponding position, and then lay them according to the requirements of the drawings. [0003] At present, when hoisting the PK board, mainly after the rib plate of the PK board is clamped by a special spreader, the hoisting device is used for lifting. For example, t...

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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: the existing hoists are large in size and heavy, low in hoisting efficiency and high in production cost

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