CN203783004U - Reinforced concrete stair structure - Google Patents
Reinforced concrete stair structure Download PDFInfo
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- CN203783004U CN203783004U CN201420083627.3U CN201420083627U CN203783004U CN 203783004 U CN203783004 U CN 203783004U CN 201420083627 U CN201420083627 U CN 201420083627U CN 203783004 U CN203783004 U CN 203783004U
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- stair
- platform
- reinforced concrete
- gangboard
- separation layer
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Abstract
The utility model relates to a reinforced concrete stair structure which comprises a platform, a stair girder and a stair plate, wherein the stair girder is used for supporting and connected with the platform; the top of the stair plate is fixedly connected with the platform and the stair girder in an anchoring manner; the bottom of the stair plate is arranged on an installation surface, and a buffer structure is arranged between the bottom of the stair girder and the installation surface; the buffer structure comprises a movable clearance and a first isolation layer arranged on the installation surface. The reinforced concrete stair structure disclosed by the utility model is simple in structure, strong in operability, low in cost and capable of preventing structural damage generated by earthquake.
Description
Technical field
The utility model relates to building field, espespecially a kind of reinforced concrete stairs structure.
Background technology
China is a country that earthquake is multiple, and the whole nation, except minority is economized, 6 grades of above earthquakes all occurred.Basic earthquake intensity 6 is spent and the area in above area accounts for whole areas more than 2/3.Earthquake causes casualties serious with economic loss, and its main cause is the destruction of building construction and collapses.Earthquake also reflects that the seismic design of more existing building structure or structural element (as stair) is difficult to meet the demand for security of people to dwelling environment and good life.
A large amount of frame constructions and framework in earthquake) stair of shear wall structure middle frame part suffer comparatively serious destruction, the frame column being connected with stair also damages to some extent.Current, in conventional design, do not consider that stair participate in overall structure co-operation, also do not carry out seismic design to stair self.In fact in earthquake, stair premiere feature should be evacuation, rescue passage, is serving as first anti-vibration defense lines.In the research of the anti-seismic performance to stair, engineering staff has proposed seismic measures and the method for some enhancing structures or member shock resistance, as stair self are carried out to seismic design, strengthen the frame column of staircase or newel is changed into frame column, and staircase design is become to steel concrete or brick shear wall structure etc.Above-mentioned Seismic Design Method and measure can strengthen shock resistance and the earthquake disaster mitigation of stair to a certain extent, but can not fundamentally change the adverse effect of stair to agent structure in building structure, can not change its structural damage pattern, therefore still do not meet the requirement of antidetonation.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, and a kind of reinforced concrete stairs structure is provided, and can solve the problem of shock strength deficiency in existing staircase design and the adverse effect of stair to agent structure.
The technical scheme that realizes above-mentioned purpose is:
A kind of reinforced concrete stairs structure of the utility model, comprise the terraced beam of platform and the gangboard of top and described platform and described terraced beam anchor connection described in platform, support and connection, the bottom of described gangboard be placed on installed surface and and described installed surface between be provided with buffer structure, described buffer structure comprises free gap and is located at the first separation layer on described installed surface.
The top of employing gangboard reinforcing bar is with terraced beam steel together with platform reinforcing bar binding, and then concreting anchoring forms overall structure.Make the sound construction between stair, platform and terraced beam, increase the shock strength of stair entirety.Between gangboard bottom and installed surface, buffer structure is set, this buffer structure is free gap and the first separation layer, cushion in earthquake active force between stair and installed surface structure by the first separation layer, reduce the impact of staircase component on the installed surface rigidity of structure, the horizontal seismic force that stair are born simultaneously also reduces, and is conducive to stair and platform and the integrally-built antidetonation of terraced beam.By free gap being set between gangboard base plate and installed surface, make the gangboard can free shrink under deformation state, present removable state, solve the adverse effect of stair to agent structure, in addition, between stair and platform and terraced beam due to reinforcing bar binding together, into a single integrated structure, can prevent stair landing from platform in earthquake.The stair that adopt above-mentioned construction method to obtain, the earthquake of stair can reduce earthquake generation time, makes stair become the reliable passage of escape and rescue.Construction method is simple, workable simultaneously, and cost is low, can prevent the structural deterioration producing under earthquake.
The further improvement of the utility model reinforced concrete stairs structure is, the installed surface of first floor stair is ground place ladder beam.
The further improvement of the utility model reinforced concrete stairs structure is, except first floor stair, described installed surface is the platform of lower first floor ladder.
The further improvement of the utility model reinforced concrete stairs structure is, on described platform with on ground, is provided with building coats, between described building coats and described gangboard, is provided with the second separation layer.
The further improvement of the utility model reinforced concrete stairs structure is, the thickness of described the first separation layer is 3 millimeters to 7 millimeters, and described the second separation layer thickness is 40 millimeters to 60 millimeters.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model reinforced concrete stairs structure;
Fig. 2 is the local enlarged diagram of A position in Fig. 1;
Fig. 3 is the local enlarged diagram of B position in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 has shown the schematic diagram of the utility model reinforced concrete stairs structure.In the utility model reinforced concrete stairs structure, the top that adopts gangboard reinforcing bar with platform reinforcing bar together with terraced beam steel bar colligation, then build anchoring and form an overall structure, make gangboard become as a whole with the terraced beam of platform and platform below, improved overall shock strength.Between gangboard bottom and installed surface, be provided with buffer structure, between gangboard and ground place ladder beam, be provided with the first separation layer and free gap, between gangboard and the platform of lower first floor ladder, be also provided with the first separation layer and free gap, the space of free shrink when free gap provides distortion for gangboard, can cushion the active force between stair and platform and terraced girder construction in earthquake by the first separation layer, reduce the impact of staircase component on platform and terraced girder construction rigidity.It is strong that the utility model reinforced concrete stairs structure and construction method thereof have antidetonation, reduces the features such as the adverse effect of stair to agent structure.Below in conjunction with accompanying drawing, the utility model reinforced concrete stairs structure and construction method thereof are described.
As shown in Figure 1, be the schematic diagram of the utility model reinforced concrete stairs structure.Below in conjunction with Fig. 1, the utility model reinforced concrete stairs structure is described.
The utility model reinforced concrete stairs structure comprises the terraced beam 20 of platform 30, support and connection platform 30 and the gangboard 10 of top and platform 30 and 20 anchor connections of terraced beam, this anchor connection be by gangboard reinforcing bar with platform reinforcing bar together with terraced beam steel bar colligation, then concreting solidifies.The bottom of gangboard 10 is placed on installed surface, and and installed surface between be installed with buffer structure 50.
The utility model reinforced concrete stairs structure is in construction, and the bottom of first floor stair is placed on ground place ladder beam.Refer to Fig. 2, it is the bottom of first floor stair and the partial enlarged drawing of ground place ladder beam.Shown in Fig. 2, the bottom of gangboard 10 is placed on ground place ladder beam 20, and be installed with buffer structure 50 between ground place ladder beam 20, buffer structure 50 comprises free gap 501 and is located at the first separation layer 502, the first separation layers 502 on ground place ladder beam 20 below that is placed in free gap 501.As a preferred embodiments of the present utility model, on ground, be equipped with building coats 40, the be above the ground level height of the terraced beam 20 in place of building coats 40, is provided with the second separation layer 401 with gangboard 10 junctions, bottom, and the second separation layer joining with stairway step is placed in the inside of stairway step.
Except first floor stair, the bottom of other floor ladders is all placed on the platform of adjacent lower floor stair, taking second layer stair and first floor stair junction as example describes.Refer to 3, it is the local enlarged diagram of gangboard bottom and lower first floor ladder platform.Shown in Fig. 3, the bottom of the gangboard 10 of second layer stair is placed on the platform 20 of first floor stair, and be installed with buffer structure 50 between the platform 20 of first floor stair, buffer structure 50 comprises free gap 501 and is located at the first separation layer 502 on the platform 20 of first floor stair, is located at the below of free gap 501.On the platform 20 of first floor stair, be equipped with building coats 40, building coats 40 is provided with the second separation layer 401 with second layer stair connecting place, and this second separation layer 401 is placed in the step inside of second layer stair.
The first separation layer 502 is flexible material, can adopt polytetrafluoroethylene (PTFE), and the thickness of the first separation layer 502 is 3 millimeters to 7 millimeters, and preferred thickness is 5 millimeters.The second separation layer 401 is also flexible material, can adopt polyphenyl lath, and the thickness of the second separation layer 401 is 40 millimeters to 60 millimeters, and preferred thickness is 50 millimeters.Cushion in earthquake active force between stair and terraced girder construction by separation layer, reduce the impact of staircase component on terraced girder construction rigidity, the horizontal seismic force that stair are born simultaneously also reduces, and is conducive to stair and the integrally-built antidetonation of terraced beam.Between gangboard base plate and terraced beam, certain gap is set, this gap is free gap, makes the gangboard can free shrink under deformation state, presents removable state, solves the adverse effect of stair to agent structure.
The beneficial effect of the utility model reinforced concrete stairs structure is:
Between the terraced beam of the platform on gangboard and its top and this platform below, anchor connection forms overall structure, make stair, platform, with terraced beam between be connected firmly, the shock strength of increase stair entirety.
Between gangboard bottom and installed surface, be provided with separation layer and free gap, this installed surface is ground place ladder beam or the platform for lower first floor ladder, cushion earthquake active force between stair and lower floor's platform or ground place ladder girder construction at the middle and upper levels by separation layer, reduce the impact of staircase component on lower floor's platform and ground place ladder girder construction rigidity, the horizontal seismic force that stair are born simultaneously also reduces, and is conducive to stair and platform and the integrally-built antidetonation of terraced beam.Free gap makes the gangboard can free shrink under deformation state, presents removable state, solves the adverse effect of stair to agent structure.
Adopt the utility model reinforced concrete stairs structure, the earthquake of stair can reduce earthquake generation time, makes stair become the reliable passage of escape and rescue.Simultaneously simple in structure, workable, cost is low, can prevent the structural deterioration producing under earthquake.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thereby some details in embodiment should not form restriction of the present utility model, the utility model by the scope defining using appended claims as protection domain of the present utility model.
Claims (5)
1. a reinforced concrete stairs structure, it is characterized in that, comprise the terraced beam of platform and the gangboard of top and described platform and described terraced beam anchor connection described in platform, support and connection, the bottom of described gangboard be placed on installed surface and and described installed surface between be provided with buffer structure, described buffer structure comprises free gap and is located at the first separation layer on described installed surface.
2. reinforced concrete stairs structure as claimed in claim 1, is characterized in that, the installed surface of first floor stair is ground place ladder beam.
3. reinforced concrete stairs structure as claimed in claim 2, is characterized in that, except first floor stair, described installed surface is the platform of lower first floor ladder.
4. reinforced concrete stairs structure as claimed in claim 3, is characterized in that, on described platform with on ground, is provided with building coats, between described building coats and described gangboard, is provided with the second separation layer.
5. reinforced concrete stairs structure as claimed in claim 4, is characterized in that, the thickness of described the first separation layer is 3 millimeters to 7 millimeters, and described the second separation layer thickness is 40 millimeters to 60 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083627.3U CN203783004U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete stair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083627.3U CN203783004U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete stair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783004U true CN203783004U (en) | 2014-08-20 |
Family
ID=51319206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083627.3U Expired - Fee Related CN203783004U (en) | 2014-02-26 | 2014-02-26 | Reinforced concrete stair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790295A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Reinforced concrete stair structure and construction method thereof |
| CN111706017A (en) * | 2020-06-10 | 2020-09-25 | 中和华丰建设有限责任公司 | Reinforced concrete stair construction method |
-
2014
- 2014-02-26 CN CN201420083627.3U patent/CN203783004U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790295A (en) * | 2014-02-26 | 2014-05-14 | 中国建筑第八工程局有限公司 | Reinforced concrete stair structure and construction method thereof |
| CN103790295B (en) * | 2014-02-26 | 2016-08-17 | 中国建筑第八工程局有限公司 | Reinforced concrete stairs structure and construction method thereof |
| CN111706017A (en) * | 2020-06-10 | 2020-09-25 | 中和华丰建设有限责任公司 | Reinforced concrete stair construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20210226 |