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Prefabricated integral shock insulation support for stair structure and construction method

A technology for shock-isolation bearings and stair structures, which is applied in the direction of ladder-like structures, stairs, and shock-proofing, to achieve high efficiency, high shock-resistant performance, and convenient installation and assembly

Pending Publication Date: 2020-11-03
CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the technical problems of existing stair isolation bearings, the present invention provides a prefabricated integral isolation bearing for staircase structures and a construction method, which has simple node connection during construction, high assembly rate, good stability, and vibration isolation The support and stairs form a frame structure combining concrete and steel bars. The seismic fortification intensity can reach 6-8 degrees, and the seismic isolation level is high.

Method used

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  • Prefabricated integral shock insulation support for stair structure and construction method
  • Prefabricated integral shock insulation support for stair structure and construction method
  • Prefabricated integral shock insulation support for stair structure and construction method

Examples

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Embodiment 1

[0033] see figure 1 , the prefabricated integral vibration isolation bearing for stair structure provided in this embodiment includes a bearing base, a flexible deformation body 1 and a connecting component placed in the bearing base, and the flexible deformation body 1 and the connecting component are separated by concrete. Prefabricated in one piece with the support base.

[0034] In this embodiment, the flexible deformation body 1 includes a vibration isolation rubber 2 and a reserved deformation area arranged around the vibration isolation rubber 2; the structure of the flexible deformation body 1 is an L-shaped body; The rubber 2 is connected and prefabricated into one body with the flexible deformable body 1 and the support base; the other end of the connecting component is placed outside the support base. The flexible deformable body 1 further includes steel plates 3 respectively disposed on the upper surface and the lower surface of the vibration-isolating rubber 2 , ...

Embodiment 2

[0052] see Figure 5 and Image 6 , and the difference from Example 1 is that the fasteners 4 are anchor bars, and the distance between the two fasteners 4 is 200mm. The diameter of the fastener 4 is 10mm, and the height of the fastener 4 is 100mm. The connecting steel bar 6 of the ladder beam section is L-shaped, and the horizontal section is fixed with the steel plate 3 by the fastener 4, and the length of the horizontal section of the connecting steel bar 6 of the ladder beam section is 600 mm.

[0053] In this embodiment, the rubber shear modulus G of the vibration isolation rubber 2 is 0.6 MPa, the rubber ultimate tensile stress is 2.0 MPa, and the ultimate compressive stress is 100 MPa. The ultimate compressive strength of the flexible deformable material is 0.16MPa, and its uniaxial ultimate compressive strain is 85%.

[0054] In this embodiment, the prefabricated integral vibration isolation bearing is located between the lower end (the lowest end tread) of the rein...

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Abstract

The invention relates to a prefabricated integral shock insulation support for a stair structure and a construction method. The prefabricated integral shock insulation support comprises a support basebody, a flexible deformation body and a connecting assembly, the flexible deformation body and the connecting assembly are arranged in the support base body, and the flexible deformation body comprises shock insulation rubber and a reserved deformation area arranged around the shock insulation rubber; the structure of the flexible deformation body is an L-shaped body; and one end of the connecting assembly is arranged in the support base body and connected with the shock insulation rubber, and the connecting assembly, the flexible deformation body and the support base body are prefabricated into a whole. The other end of the connecting assembly is arranged outside the support base body; and the flexible deformation body further comprises steel plates arranged on the upper surface and thelower surface of the shock insulation rubber respectively, and the connecting assembly is connected with the shock insulation rubber through the steel plates. By means of the shock insulation support,a construction joint is simple in connection and high in assembly rate, the shock insulation support and a stairway form a concrete and steel bar combined frame structure, stability is good, seismicfortification intensity can reach 6-8 degrees, and the shock isolation level is high.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to a vibration isolation bearing, in particular to a prefabricated integral vibration isolation bearing for a staircase structure and a construction method. Background technique [0002] In the structure of the slab staircase, the staircase increases the spatial rigidity of the overall structure. In the traditional frame structure staircase design, the slabs of the slab staircase are generally only designed according to one-way bending members, but the slab acts as an oblique support during earthquake action. The components are subjected to axial force and shear force, so the stress at the connection between the ladder plate and the ladder beam is large. Generally, it is necessary to set a support between the upper ladder and the lower ladder beam to release the shear force and bending moment, reduce the force of the ladder, and play a role in earthquake resistance. Cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/02E04F11/022E04H9/02E04B1/98
CPCE04B1/98E04F11/02E04F11/022E04H9/021
Inventor 辛力史生志杨琦曾凡生
Owner CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
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