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Separation type damping stair

A separate and stair technology, applied in the direction of anti-seismic, stepped structure, building components, etc., can solve the problems of not changing the structural failure mode, not meeting earthquake resistance, etc., to avoid adverse effects, simple construction, and strong operability.

Inactive Publication Date: 2012-03-21
CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the applicant's research and comparison, although the above-mentioned seismic design methods and measures can enhance the seismic capacity of the stairs and reduce earthquake disasters to a certain extent, they cannot fundamentally change the adverse effects of the stairs on the main structure in the building structure, nor can they change Its structural failure mode still does not meet the requirements of earthquake resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: Take two running stairs as an example, such as figure 1 , 2Shown in and 3, a kind of separable damping type staircase is made up of ladder beams 3, 4, 5, 6, ladder columns 7, ladder plates 1, 2 and stair rest platform 8, and described ladder plates 1, 2 and the staircase The rest platform 8 is fixed in the frame structure formed by the frame column 9 and the frame beams 10, 11 through the ladder column 7 and the ladder beams 3, 4, 5, 6, and the ladder plate is composed of the upper ladder plate 1 and the lower ladder plate 2, On the ladder beam 4, a cast-in-place supporting plate A14 is arranged at the corresponding position of the lower end of the upper ladder plate 1, and the upper end face of the cast-in-place supporting plate A14 is on the same level as the upper end face of the stair rest platform 8, and the upper end of the upper ladder A horizontal separation layer 13 with sufficient sliding space is provided between the lower end of the plate 1 an...

Embodiment 2

[0039] Embodiment 2: as Figure 4 and 5 As shown, while having the structure described in Embodiment 1, a cast-in-place supporting plate B18 is arranged at the lower end corresponding to the upper and lower ladder plates 2 of the ladder beam 3, and the upper end surface of the cast-in-place supporting plate B18 is in line with the The upper end surface of the floor 12 is on the same level, and a horizontal separation layer 15 with sufficient sliding space is provided between the lower end of the lower step 2 and the cast-in-place pallet B18, that is, between the lower staircase and the floor. A horizontal separation layer is provided, and the thickness of the section of the horizontal separation layer 15 is 1-20mm, and the width is the same as that of the step board.

[0040] like Figure 11 As shown, at the horizontal separation layer 15 between the lower stairway 2 and the floor 12, a flexible component with a slippage damping function is pre-embedded during construction, ...

Embodiment 3

[0041] Embodiment 3: as Image 6 and 7 As shown, while having the structure described in Embodiment 1, a horizontal separation layer 16 with sufficient sliding space is provided between the stair rest platform 8 and the ladder beam 6, and the thickness of the cross section of the horizontal separation layer 16 is It is 1-20mm, and the width is the same width as the stair rest platform.

[0042] like Figure 12 As shown, at the horizontal separation layer 16 between the stair rest platform 8 and the frame beam 6, a flexible part with a slip damping function is pre-embedded during construction, and the flexible part is a polytetrafluoroethylene film or Cement mortar cushion.

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Abstract

The invention discloses a separation type damping stair, which is composed of stair beams, stair columns, stair plates and stair rest platforms. The stair plates and the stair rest platforms are fixed in frames formed by frame columns and frame beams through the stair columns and the stair beams. Horizontal separation layers are arranged between the stair plates and the stair rest platforms or between the stair plates and floor plates, or horizontal separation layers or vertical separation seams are arranged between the stair rest platforms and the frame structures. By the adoption of horizontal separation or gliding layers and arrangement of the vertical separation seams, inclined support effect of the stair on a building structure is removed under the horizontal loading effect of earthquake and the like, negative effect on quake-proof performance of the building structure is avoided, simultaneously the complexity that the design of the building structure needs to be taken into stair calculation and analysis is avoided, and the problem that building cost is added due to the fact that the stair needs to take part in quake-proof design is solved. The separation type damping stair can improve quake-proof performance of the building structure and has good economy.

Description

technical field [0001] The invention relates to the design of staircase structure, in particular to a separated shock-absorbing staircase of frame structure and frame-shear wall structure. Background technique [0002] my country is an earthquake-prone country. Except for a few provinces, earthquakes of magnitude 6 or above have occurred in the whole country. Areas with an earthquake basic intensity of 6 degrees and above account for more than two-thirds of the total national land area. my country is also one of the countries most severely affected by earthquakes in the world. In 2008, the 8.0-magnitude Wenchuan Earthquake occurred in my country, which caused huge casualties and economic losses. The earthquake damage shows that the main cause of casualties and economic losses caused by the earthquake is the damage and collapse of houses and buildings. The earthquake damage also reflects that the existing anti-seismic technology of some building structures or structural c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/022E04B1/98
Inventor 冯远吴小宾陈文明熊耀清李从春
Owner CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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