CN209975905U - Stair with sliding support - Google Patents
Stair with sliding support Download PDFInfo
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- CN209975905U CN209975905U CN201822268243.XU CN201822268243U CN209975905U CN 209975905 U CN209975905 U CN 209975905U CN 201822268243 U CN201822268243 U CN 201822268243U CN 209975905 U CN209975905 U CN 209975905U
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Abstract
The utility model relates to a stair with sliding support belongs to the building engineering field. A stair with a sliding support comprises a step plate and the sliding support, wherein the step plate is obliquely arranged above the sliding support; the sliding support comprises a polytetrafluoroethylene plate or a steel plate arranged between the bottom end of the ladder plate and the lower end ladder beam, and graphite powder or a plastic film is laid above the polytetrafluoroethylene plate or the steel plate; a gap with the width of 5cm is reserved between the fine stone concrete of the terrace layer and the initial stage of the stair step; parallel to the top surface and the bottom surface of terraced board have still arranged a plurality of upper portions respectively and have indulged the muscle and indulge the muscle with the lower part, the muscle is indulged on upper portion and the muscle is indulged in the lower part and all is fixed through a plurality of distribution muscle on the terraced board. The utility model discloses make stair adopt lower extreme sliding support, can avoid forming the riser and support, weaken rigidity, when receiving earthquake power destruction, release earthquake destructive power and be unlikely to produce structural deformation and destroy even.
Description
Technical Field
The utility model relates to a stair with sliding support belongs to the building engineering field.
Background
At present, with the development of national economy of China, the national requirement on the earthquake resistance of buildings is more and more strict, in houses in earthquake-resistant fortification areas, all main structure components are earthquake-resistant components, doubts are not needed, and non-structural components attached to the main structure also have corresponding reliable connection earthquake-resistant measures. In the design of earthquake fortification, the earthquake-resistant component mainly comprises a frame beam, a frame column, a shear wall and a masonry body designed (or constructed) according to earthquake resistance; the non-seismic component comprises a stair, a floor slab and the like. Although GB50011-2010 "building antidetonation design code" requires that the arrangement of staircases should not lead to the structural plane special irregularity, when the stair component and major structure are integrally poured, the influence of the stair component on the earthquake action and its effect should be taken into account, the earthquake-resistant bearing capacity check calculation of the stair component should be carried out, the influence of the stair component on the major structure rigidity is reduced, but in the calculation software PKPM in the traditional frame structure stair design, the staircases cannot be input into the calculation model, the influence of the stair component cannot be considered, and only the staircases can be calculated alone. To frame construction, when stair component and major structure were watered in order, the step of board-like stair only generally was designed according to one-way flexural member, but the step bears axial force and shear force as oblique bracing member in the earthquake effect, therefore step and terraced roof beam junction stress is great, and the bracing system absorbs very big jarring power during the earthquake, leads to the destruction or the collapse of stair easily, and then influences escape passage safety.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a staircase with a sliding support, which can avoid the formation of a step plate support, weaken the rigidity, and release the earthquake destructive force when the earthquake force is damaged, so as to prevent the structural deformation or even damage.
The utility model aims at realizing through the following technical scheme:
a stair with a sliding support comprises a step plate and the sliding support, wherein the step plate is obliquely arranged above the sliding support; the bottom end of the stair board is provided with a low-end stair beam, the top end of the stair board is provided with a high-end stair beam, and the initial stair step section is positioned right above the low-end stair beam; the sliding support comprises a polytetrafluoroethylene plate or a steel plate arranged between the bottom end of the ladder plate and the lower end ladder beam, and graphite powder or a plastic film is laid above the polytetrafluoroethylene plate or the steel plate; a gap with the width of 5cm is reserved between the fine stone concrete of the terrace layer and the initial stage of the stair step;
parallel to the top surface and the bottom surface of terraced board have still arranged a plurality of upper portions respectively and have indulged the muscle and indulge the muscle with the lower part, the muscle is indulged on upper portion and the muscle is indulged in the lower part and all is fixed through a plurality of distribution muscle on the terraced board.
Furthermore, the width of the polytetrafluoroethylene plate or the steel plate is the same as that of the initial step section of the stair.
Further, the thickness of the polytetrafluoroethylene plate or the steel plate is 5mm, and the polytetrafluoroethylene plate or the steel plate is glued on the concrete surface of the lower end ladder beam.
Furthermore, a polystyrene board is filled in the gap, and the thickness of the polystyrene board is the same as that of the fine aggregate concrete of the terrace layer.
Furthermore, the upper longitudinal rib extends into the platform plate at the top end of the ladder plate.
Furthermore, the diameters of the upper longitudinal bar and the lower longitudinal bar are not smaller than the diameter of the longitudinal stress steel bar of the ladder board.
Furthermore, the upper longitudinal bar and the lower longitudinal bar are three-level steel bars with the diameter of 16 mm.
Furthermore, the distribution ribs are perpendicular to the upper longitudinal ribs and the lower longitudinal ribs.
The utility model has the advantages that:
firstly, the utility model discloses make stair adopt lower extreme sliding support, can avoid forming the halfpace and support, weaken rigidity, when receiving seismic force and destroy, release seismic force of destruction and be unlikely to produce structural deformation and destroy even.
Secondly, stair with sliding support adopts sliding support's concrete frame structure, and the stair component leaves with major structure, and step sliding support is in the landing slab, and the stair component is less to the influence of structural rigidity etc. whether participate in whole antidetonation calculation difference little, can participate in overall structure calculation without considering stair. The structure of the earthquake-resistant wall with enough rigidity is arranged in the staircase, the influence of the staircase component on the structural rigidity is small, and the whole earthquake-resistant calculation can not be involved. In addition, the influence on the rigidity of the whole structure is reduced by the structure of the stair with the sliding support, and the stair plate with the sliding support has the possibility of being instantaneously separated from the sliding support under the action of an earthquake, so that the quantitative analysis of the displacement of the stair plate support end of the sliding support under the action of the earthquake is considered in the design.
Drawings
Fig. 1 is a schematic structural view of a staircase with a sliding support according to the present invention;
FIG. 2 is a schematic structural view of the junction between the fine-grained concrete of the terrace layer and the initial step section of the stair step;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a schematic structural view of distribution ribs for fixing the upper longitudinal ribs and the lower longitudinal ribs, respectively;
the method comprises the following steps of 1-step plate, 2-sliding support, 3-low-end step beam, 4-high-end step beam, 5-initial step section, 6-fine stone concrete of terrace layer, 7-gap, 8-upper longitudinal rib, 9-upper longitudinal rib and 10-distribution rib.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A stair with a sliding support comprises a step plate 1 and a sliding support 2, wherein the step plate 1 is obliquely arranged above the sliding support 2; the bottom of the step plate 1 is provided with a low-end step beam 3, the top of the step plate is provided with a high-end step beam 4, and the initial stair step section 5 is located right above the low-end step beam 3. As shown in fig. 2, the sliding support 2 comprises a teflon plate or a steel plate which is arranged between the bottom end of the ladder plate and the lower end ladder beam 3, the thickness of the teflon plate or the steel plate is 5mm, and the teflon plate or the steel plate is adhered to the concrete surface of the lower end ladder beam through gluing. The width of the polytetrafluoroethylene plate or the steel plate is the same as that of the initial stair step section 5. Graphite powder or a plastic film is laid above the polytetrafluoroethylene plate or the steel plate to ensure that a sliding effect is achieved. When the stair decorative surface layer is constructed, a gap 7 with the width of 5cm is reserved between the terrace layer fine stone concrete 6 and the stair tread initial section 5 and is filled with a high polymer foam filling agent, so that the stair has a free sliding distance. Preferably, the gap 7 is filled with a polystyrene board, and the thickness of the polystyrene board is the same as that of the fine aggregate concrete 6 of the terrace layer.
For the intensity of reinforcing step, avoid taking place to destroy or collapse because of the atress, be on a parallel with the muscle 8 is indulged with the lower part and is indulged to a plurality of upper portions still arranged respectively to the top surface and the bottom surface of step 1, muscle 8 is indulged on upper portion and muscle 9 is indulged in the lower part and all is fixed through a plurality of distribution muscle 10 to the muscle 8 is indulged on upper portion on the step 1. Wherein, the upper longitudinal rib stretches 8 into the platform board at the top end of the ladder board. The diameters of the upper longitudinal bar 8 and the lower longitudinal bar 9 are not smaller than the diameter of the longitudinal stress steel bar of the ladder board. Preferably, the upper longitudinal bar 8 and the lower longitudinal bar 9 are three-level steel bars with the diameter of 16 mm. As shown in fig. 3 and 4, the distribution ribs 10 are disposed perpendicular to the upper longitudinal ribs 8 and the lower longitudinal ribs 9.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A stair with a sliding support is characterized by comprising a step plate (1) and the sliding support (2), wherein the step plate (1) is obliquely arranged above the sliding support (2); a low-end ladder beam (3) is arranged at the bottom end of the ladder plate (1), a high-end ladder beam (4) is arranged at the top end of the ladder plate, and a stair step starting section (5) is positioned right above the low-end ladder beam (3); the sliding support (2) comprises a polytetrafluoroethylene plate arranged between the bottom end of the ladder plate and the lower end ladder beam (3), and a plastic film is laid above the polytetrafluoroethylene plate; a gap (7) with the width of 5cm is reserved between the terrace layer fine stone concrete (6) and the stair step starting section (5);
a plurality of upper longitudinal ribs (8) and lower longitudinal ribs (9) are arranged on the top surface and the bottom surface of the ladder plate (1) in parallel, and the upper longitudinal ribs (8) and the lower longitudinal ribs (9) are fixed on the ladder plate (1) through a plurality of distribution ribs (10);
the width of the polytetrafluoroethylene plate is the same as that of the initial step section (5) of the stair;
the thickness of the polytetrafluoroethylene plate is 5mm, and the polytetrafluoroethylene plate is glued on the concrete surface of the lower end ladder beam;
polystyrene boards are filled in the gaps (7), and the thickness of each polystyrene board is the same as that of the fine stone concrete (6) of the terrace layer;
the upper longitudinal rib (8) extends into the platform plate at the top end of the ladder plate;
the diameters of the upper longitudinal bar (8) and the lower longitudinal bar (9) are not smaller than the diameter of the longitudinal stress steel bar of the ladder plate;
the upper longitudinal bar (8) and the lower longitudinal bar (9) are three-stage reinforcing steel bars with the diameter of 16 mm;
the distribution ribs (10) are perpendicular to the upper longitudinal ribs (8) and the lower longitudinal ribs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268243.XU CN209975905U (en) | 2018-12-28 | 2018-12-28 | Stair with sliding support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268243.XU CN209975905U (en) | 2018-12-28 | 2018-12-28 | Stair with sliding support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209975905U true CN209975905U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822268243.XU Active CN209975905U (en) | 2018-12-28 | 2018-12-28 | Stair with sliding support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575662A (en) * | 2023-07-13 | 2023-08-11 | 中国船舶集团国际工程有限公司 | Bidirectional earthquake-resistant stair and box plate assembled steel structure building |
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2018
- 2018-12-28 CN CN201822268243.XU patent/CN209975905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575662A (en) * | 2023-07-13 | 2023-08-11 | 中国船舶集团国际工程有限公司 | Bidirectional earthquake-resistant stair and box plate assembled steel structure building |
| CN116575662B (en) * | 2023-07-13 | 2023-10-10 | 中国船舶集团国际工程有限公司 | Bidirectional earthquake-resistant stair and box plate assembled steel structure building |
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