Stair plate low-position shock insulation structure for assembly type stair and construction method

Abstract

The invention relates to a stair plate low-position shock insulation structure for an assembly type stair and a construction method. The stair plate low-position shock insulation structure comprises astair plate and a shock insulation support connected with the low-position end of the stair plate, and the stair plate and the shock insulation support are prefabricated into a whole; the shock insulation support comprises a support base body and a flexible deformable body arranged in the support base body; the flexible deformable body comprises shock insulation rubber and a reserved deformationarea arranged around the shock insulation rubber; steel plates are respectively arranged on the upper surface and the lower surface of the shock insulation rubber; the lower-position end of the stairplate is connected with the steel plate on the upper surface of the flexible deformable body; stair beam connecting steel bars are further included; one ends of the stair beam connecting steel bars are arranged in the shock insulation support, are connected with the steel plate on the lower surface of the shock insulation rubber through fasteners, and are prefabricated with the shock insulation support into a whole; and the other ends of the stair beam connecting steel bars are arranged outside the shock insulation support. By means of the structure, joint connection is simpler, the assembly speed is high, the stability is good, the stair plate low-position shock insulation structure of the assembly type stair is assembled between stair beams, and the shock insulation performance is high.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to a shock-isolation support, in particular to a low-position shock-isolation structure and a construction method of a ladder plate used for an assembled staircase. Background technique [0002] In the structure of slab stairs, the stairs increase the spatial rigidity of the overall structure. In the design of traditional frame structure stairs, the treads of slab stairs are generally only designed as one-way bending members, but the slabs are used as oblique supports during earthquakes. The component bears axial force and shear force, so the stress at the connection between the ladder plate and the ladder beam is relatively large. Generally, it is necessary to set a support between the upper ladder plate and the lower ladder beam to release the shear force and bending moment, reduce the stress on the ladder plate, and play an anti-seismic role. Currently. The installa...

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Problems solved by technology

The installation method of the anti-seismic bearing of the stairs often adopts a prefabricated structure. This structure mainly includes concrete and steel structures. The prefabricated concrete structure is the focus of the development of building industrialization, but its technical level still has limited building size and low assembly rate. , complex node connections, and poor seismic performance; while the steel structure is factory-processed, on-site installed, and has a high degree of industrialization, the construction and maintenance costs are high

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