CN204098374U - A kind of prefabricated pair of race stair - Google Patents
A kind of prefabricated pair of race stair Download PDFInfo
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- CN204098374U CN204098374U CN201420417913.9U CN201420417913U CN204098374U CN 204098374 U CN204098374 U CN 204098374U CN 201420417913 U CN201420417913 U CN 201420417913U CN 204098374 U CN204098374 U CN 204098374U
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- ear
- ladder beam
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- stair
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Abstract
The utility model discloses a kind of prefabricated pair of race stair, comprise and connect upper strata floor ladder beam and choose the precast stair body that ear and lower floor's floor ladder beam choose ear, it is mutually vertically hinged that one end of described precast stair body and upper strata floor ladder beam choose ear, the other end is placed in lower floor's floor ladder beam and chooses on ear, and the horizontal direction contact surface place that described precast stair body and lower floor's floor ladder beam choose ear has gap.Compared with prior art, the utility model is connected mode independently, and make to which substantially obviate geological process and to go downstairs the impact of gangboard and rigidity stressed on floor agent structure, safer, the utility model is fixed without the need to reinforcing bar, is convenient to transport and installs.
Description
Technical field
The utility model relates to building field, particularly a kind of prefabricated pair of race stair be applied to the connection of floor in residential building.
Background technology
In highrise building, the construction of stair needs to consider a lot of external factor, particularly shock resistance, gangboard due to stair is the transition structure connecting levels floor, therefore under macroseism, the vibrations that levels floor produces can be applied directly on stair, otherwise, the comparatively big bang that stair are formed also can be applied directly to levels floor, and stair in cast-in-place structural and floor agent structure adopt and are rigidly connected, what stair gangboard played bearing diagonal is applied on stair, larger on the impact of structural entity rigidity, no matter this is the vibrations where produced if just causing, in the course of time the connection of stair and floor can all be damaged, and usually need the overall seismic Calculation considering stair participation structure in the design, but current computation model is not ideal enough, result of calculation is accurate not, to such an extent as to affects result of calculation and the design of structural entity.
And more existing prefabricated gangboards, it is generally overall structure, be fixedly connected in floor agent structure by the reinforcing bar of gangboard front and back end, although the damage that long-term faint vibrations bring can be resisted to a certain extent, but in macroseism situation, or the intrinsic drawback that is rigidly connected cannot be avoided, cause the badly damaged of gangboard and floor agent structure junction, there is great potential safety hazard, and this prefabricated gangboard manufacturing cost with reinforcing bar is high, it is complicated to install, be not easy to transport and lifting.
Utility model content
The utility model technical issues that need to address are for above-mentioned the deficiencies in the prior art, and provide a kind of stand alone type to have prefabricated pair of race stair of shockproof function.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of prefabricated pair of race stair, comprise and connect upper strata floor ladder beam and choose the precast stair body that ear and lower floor's floor ladder beam choose ear, it is mutually vertically hinged that one end of described precast stair body and upper strata floor ladder beam choose ear, the other end is placed in lower floor's floor ladder beam and chooses on ear, and the horizontal direction contact surface place that described precast stair body and lower floor's floor ladder beam choose ear has gap.
As further preferred version, the filler for antidetonation is set in the gap that precast stair body and lower floor's floor ladder beam choose ear horizontal direction contact surface place.
As further preferred version, described gap length is 20mm-50mm.
As further preferred version, the face that described precast stair body up and down floor plate ladder beam chooses ear contact has sliding pad.
As further preferred version, choose between ear at precast stair body and lower floor's floor ladder beam and arrange for levelling seat pulp layer.
Beneficial effect
Compared with prior art, one of the present utility model prefabricated pair of race stair, ear is chosen hinged by one end of precast stair body and upper strata floor ladder beam, the other end is placed in lower floor's floor ladder beam and chooses on ear, this independently structure, stair are avoided to be fixedly connected with floor, when there are vibrations, precast stair body can choose horizontal slip on ear at lower floor's floor ladder beam, eliminate shaking force, avoiding firmer floor vibrations to be passed on stair causes stair to damage, and structure power transmission is clear, and the result of aseismic Calculation Models more accurately and reliably; The horizontal direction contact surface place that precast stair body and lower floor's floor ladder beam choose ear has gap, for lower floor floor ladder beam choose ear slide or deformation occur time, reserved horizontal movement space, avoid mutual extruding, the filler being used for antidetonation is set in gap and improves safety factor further, the face that precast stair body up and down floor plates ladder beam chooses ear contact has sliding pad, friction factor each other can be reduced, reduce friction be convenient to precast stair body choose on ear at lower floor floor ladder beam movable; Precast stair body and lower floor's ladder beam are chosen between ear and are arranged for levelling seat pulp layer, do pulp layer and play certain adhesion fixed effect and improve stability, also make contact surface more level and smooth; One of the present utility model prefabricated pair of race stair, without the need to bar connecting, to manufacture, transport, fast easier for installation, and effectively can eliminate shaking force, improve safety, be applicable to manufacture and the installation of any floor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, 1-upper strata floor ladder beam chooses ear, and 2-lower floor floor ladder beam chooses ear, 3-precast stair body, 4-filler, and 5-sits pulp layer.
Detailed description of the invention
Optimal technical scheme of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, one of the present utility model prefabricated pair of race stair, connection upper strata, the upper end floor ladder beam of precast stair body 3 chooses ear 1, lower end connects lower floor's floor ladder beam and chooses ear 2, and the upper end of precast stair body 3 and upper strata floor ladder beam to choose ear 1 mutually vertically hinged, can horizontally slip centered by hinged support, the lower end of precast stair body 3 is placed in lower floor's floor ladder beam and chooses on ear 2, precast stair body 3 and lower floor's floor ladder beam are chosen ear 2 and are divided into horizontal direction contact surface and vertical direction contact surface, vertical direction contact surface is the weight-bearing surface that carrying lower floor floor ladder beam chooses ear 2 weight, this weight-bearing surface can arrange sliding pad or slip striped, sliding pad is metallic gasket or poly-tetraene plate, and the striped that slides is generally Embedded metal bump, metal material can bear weight for a long time, mainly in order to reduce contact surface, reduce friction factor, be convenient to slide, the horizontal direction contact surface place that precast stair body 3 and lower floor's floor ladder beam choose ear 2 has gap, gap length is 20mm-50mm, covering layer is laid in gap, arranges and be used for quakeproof and quake-resistant filler 4 in gap, filler 4 is generally fixed on lower floor's floor ladder beam and chooses on ear 2, choosing between ear 2 at precast stair body 3 and lower floor's floor ladder beam arranges for levelling seat pulp layer 5, sit pulp layer 5 and can improve the smoothness that precast stair body 3 and lower floor floor ladder beam choose ear 2 surface, sitting pulp layer 5 general thickness is 15mm, also poly-tetraene plate can be laid in seat pulp layer 5, Main Function reduces friction factor, is convenient to the slip of precast stair body.
Above-described embodiment is the principle of illustrative the application and effect thereof only, but not for limiting the application.Any person skilled in the art scholar all under the spirit and category of the application, can modify above-described embodiment or changes.Therefore, have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the application discloses, must be contained by the claim of the application.
Claims (5)
1. prefabricated pair of race stair, comprise and connect upper strata floor ladder beam and choose the precast stair body (3) that ear (1) and the terraced beam of lower floor's floor choose ear (2), it is characterized in that: it is mutually vertically hinged that one end of described precast stair body (3) and upper strata floor ladder beam choose ear (1), the other end is placed in lower floor's floor ladder beam and chooses on ear (2), and the horizontal direction contact surface place that described precast stair body (3) and lower floor's floor ladder beam choose ear (2) has gap.
2. one according to claim 1 prefabricated pair of race stair, is characterized in that: in the gap that precast stair body (3) and lower floor's floor ladder beam choose ear (2) horizontal direction contact surface place, arrange the filler (4) being used for antidetonation.
3. one according to claim 2 prefabricated pair of race stair, is characterized in that: described gap length is 20mm-50mm.
4. one according to claim 1 prefabricated pair of race stair, is characterized in that: described precast stair body (3) up and down floor plate ladder beam is chosen on face that ear (2) contacts has sliding pad.
5. one according to claim 1 prefabricated pair of race stair, is characterized in that: choose between ear (2) at precast stair body (3) and lower floor's floor ladder beam and arrange for levelling seat pulp layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417913.9U CN204098374U (en) | 2014-07-28 | 2014-07-28 | A kind of prefabricated pair of race stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417913.9U CN204098374U (en) | 2014-07-28 | 2014-07-28 | A kind of prefabricated pair of race stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098374U true CN204098374U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420417913.9U Active CN204098374U (en) | 2014-07-28 | 2014-07-28 | A kind of prefabricated pair of race stair |
Country Status (1)
| Country | Link |
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| CN (1) | CN204098374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179305A (en) * | 2014-07-28 | 2014-12-03 | 南京长江都市建筑设计股份有限公司 | Prefabricated double-flight staircase |
| CN109914717A (en) * | 2019-04-01 | 2019-06-21 | 成都建工第二建筑工程有限公司 | Prefabricated sliding stair and its construction method |
-
2014
- 2014-07-28 CN CN201420417913.9U patent/CN204098374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179305A (en) * | 2014-07-28 | 2014-12-03 | 南京长江都市建筑设计股份有限公司 | Prefabricated double-flight staircase |
| CN109914717A (en) * | 2019-04-01 | 2019-06-21 | 成都建工第二建筑工程有限公司 | Prefabricated sliding stair and its construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |