Concrete-filled steel pipe special-shaped column-concealed beam floor slab fabricated system adopting Z-shaped connecting

Abstract

The invention provides a concrete-filled steel pipe special-shaped column-concealed beam floor slab fabricated system adopting Z-shaped connecting, and belongs to the technical field of structural engineering. The concrete-filled steel pipe special-shaped column-concealed beam floor slab fabricated system adopting Z-shaped connecting comprises concrete-filled steel pipe special-shaped columns, concealed beam floor slab modules and Z-shaped joints. Beams prefabricated in a factory serve as frames of beam-slab overall modules, and prefabricated concrete is poured at the bottoms of the beams; inthe construction site, the concealed beam floor slab modules and the concrete-filled steel pipe special-shaped columns are connected through the Z-shaped joints; then pipelines can be freely laid on prefabricated concrete layers, the pipelines between the different slabs penetrate through holes in beam webs, and after laying is completed, lightweight concrete is poured; and through beam-slab integration of the concealed beam floor slabs, both upper flanges and lower flanges of the beams are pre-embedded in the concrete of the floor slabs, thus the local stability of components is improved, andthe problems of fire protection and corrosion prevention of steel structural beams are solved. Through the modes that the holes are formed in the webs and the floor slabs are poured in a layered mode, individualized arrangement of the pipelines is facilitated, and later maintenance and transformation are convenient.

Description

technical field [0001] The invention designs a Z-shaped joint steel pipe concrete special-shaped column-invisible beam floor assembly system, which belongs to the technical field of structural engineering. Background technique [0002] Although the existing steel structure buildings have improved the construction speed and eased the construction difficulty to a certain extent, there are still many problems. During the construction process, some use profiled steel plate slabs to save a lot of formwork, but the profiled steel plates increase the cost, and it is inconvenient to decorate and handle under the slabs, and temporary supports need to be arranged; some use reinforced concrete laminated slabs, which generally require Temporary support is arranged, and the prefabricated layer is thicker to increase the total height of the floor slab. In the traditional beam-slab structure, the slabs are arranged on the beams, which increases the total height of the beams and slabs and ...

AI Technical Summary

Problems solved by technology

Exposed steel beams require anti-corrosion and fire prevention treatment, which increases the cost, and the exposed steel beams are not conducive to flexible space layout

Traditional floor electric pipes are buried in the structural layer, and the building layer is poured on the structural layer, and water, heating and other pipelines are buried in the building layer, making the total thickness of the floor slab larger

Images