CN204571133U - The light prefabricated stair of a kind of steel truss - Google Patents
The light prefabricated stair of a kind of steel truss Download PDFInfo
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- CN204571133U CN204571133U CN201520248551.XU CN201520248551U CN204571133U CN 204571133 U CN204571133 U CN 204571133U CN 201520248551 U CN201520248551 U CN 201520248551U CN 204571133 U CN204571133 U CN 204571133U
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- stair
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- truss
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Abstract
The utility model discloses the light prefabricated stair of a kind of steel truss, comprise the prefabricated main couple being formed and mark time with two parallel stair platforms, be fixedly connected with prefabricated sub-truss between described two parallel stair platforms, described prefabricated main couple and prefabricated sub-truss form precast stair main stress skeleton; Precast stair main stress skeleton outer layer covers surface layer; Filler is provided with in the gap of precast stair main stress skeleton.The utility model can according to different staircase structure forms, the combining form of adjustment main couple and sub-truss, thus adapt to most stair, have wide range of applications.Because inside stuffing adopts light material, stair deadweight can be alleviated, not only can reduce the geological process of stair under geological process, ensure that stair are as the security requirement of passway for escaping, can also be used as large span stair.The additional gauze wire cloth in surface layer inside, can prevent top-crack, by surface layer is floating, polishing during prefabrication, can replace architectural decoration surface layer, ensures that stair are attractive in appearance.
Description
Technical field
The utility model belongs to assembling multilayer and highrise building technical field of prefabricated, is specifically related to a kind ofly inside fill out light filling thing by the precast stair of steel truss as main stress component, external wrapping concrete surface layer.
Background technology
At present, along with Building Trade in China field enters new development course, prefabricated concrete structure is in the ascendant.Prefabricated concrete structure refers to prefabricated units to be main bearing member, and through the concrete structure of assembly connection, have the feature of standardization, batch production, construction quality is high, meets the requirement of green building.Stair are as the indispensable element of multilayer and highrise building, be responsible for the function that flow of personnel, escape etc. are very important, when the disaster such as earthquake or fire occurs, stair are necessary for personnel in building and provide escape and rescue passage, and can not make a difference the normal destruction used.Existing reinforced concrete prefabricated stair make complicated, construction and installation difficulty, and because deadweight is comparatively large, the seismic forces produced under geological process is comparatively large, destroys also even more serious.For some special-shaped stair, existing reinforced concrete prefabricated stair cannot make, and the mode of cast in situs can only be adopted to construct, can not meet the requirement of prefabricated concrete structure.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of steel truss light prefabricated stair, this stair have rational in infrastructure, conduct oneself with dignity low, feature rapidly of constructing.
For achieving the above object, the utility model adopts following technical proposals:
The light prefabricated stair of a kind of steel truss, comprise the prefabricated main couple being formed and mark time with two parallel stair platforms, are fixedly connected with prefabricated sub-truss between described two parallel stair platforms, and described prefabricated main couple and prefabricated sub-truss form precast stair main stress skeleton; Precast stair main stress skeleton outer layer covers surface layer; Filler is provided with in the gap of precast stair main stress skeleton.
The composition rod member of described prefabricated main couple and sub-truss is angle steel or C-type steel.By different Type of Welding, the most stair forms comprising straight stair, two race stair, spiral stairs can be combined into.
Intersect vertically between described prefabricated sub-truss and two parallel stair platforms.
Described prefabricated main couple comprises main couple upper chord and main couple lower chord, and main couple upper chord and main couple lower chord are two parallel stair platforms; Main couple web member is provided with between described main couple upper chord and main couple lower chord; Described main couple upper chord fixedly to be marked time bar, be used for supporting stair step.
Described precast stair main stress skeleton scribbles fire prevention and antirusting paint.
Described filler is lightweight polyphenyl plate.
Described surface layer is concrete or mortar.
The included gauze wire cloth of described surface layer, crack preventing.
Described prefabricated sub-truss is connected with two parallel stair platform weldings.
The beneficial effects of the utility model are:
(1) the utility model adopts steel truss as the main stress frame of precast stair, by being weldingly connected between main couple and sub-truss, the angle steel adopted or C-type steel become arbitrary shape by factory process, according to concrete case history flexible combination, most stair forms can be adapted to.The utility model can according to different staircase structure forms, the combining form of adjustment main couple and sub-truss, thus adapt to the most stair comprising straight stair, two race stair, spiral stairs, have wide range of applications.
(2) because steel truss stress form is reasonable, under identical stair span, the gangboard thickness comparing reinforced concrete stairs is less.
(3) lightweight polyphenyl plate is adopted to fill between steel truss, compare reinforced concrete stairs deadweight lighter, not only in the geological process reducing stair under geological process, can ensure that stair are as the security requirement of passway for escaping, can also be used as large span stair.Steel truss brushing fire prevention and antirusting paint, to reach fire endurance and life requirement.
(4) concrete or mortar is wrapped up outside steel truss precast stair, included gauze wire cloth, top-crack can be prevented, due to floating, polishing can be carried out to the surface layer of parcel during prefabrication, the building coats in later stage and link of plastering can be exempted, architectural decoration surface layer can be replaced, save working procedure, reduce cost.
Accompanying drawing explanation
A kind of steel truss precast stair section of structure that Fig. 1 provides for the utility model embodiment;
The three-dimensional shaft mapping that Fig. 2 is the utility model main couple, sub-truss connects;
Fig. 3 is the local drawing of the utility model main couple;
In figure, 1 is main couple, and 2 is sub-truss, and 3 is surface layer, and 4 is filler, and 5 is main couple upper chord, and 6 is main couple lower chord, and 7 is main couple web member, and 8 is bar of marking time.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Figure 1-Figure 2, utilize steel truss as the light prefabricated stair of main stress component, comprise main couple 1, sub-truss 2, surface layer 3, filler 4, main couple upper chord 5, main couple lower chord 6, main couple web member 7 and bar 8 of marking time.Main couple 1 is formed marks time and two parallel stair platforms, weld sub-truss 2 between two parallel stair platforms, main couple 1 and sub-truss 2 form the stress frame of precast stair, and sub-truss 2 is welded on outside the main stress surface of main couple 1, intersect vertically with main couple 1, strengthen the out-of-plane stability of main couple 1.Filler 4 is filled in the stress frame inside of precast stair, outside laying surface layer 3, and peripheral parcel surface layer 3 can replace stair surface layer and plaster.Main couple 1 is made up of main couple upper chord 5, main couple lower chord 6, main couple web member 7 and bar 8 of marking time, and main couple upper chord 5 and main couple lower chord 6 are two parallel stair platforms; Weld main couple web member 7 between main couple upper chord 5 and main couple lower chord 6, increase the stabilized soil pavement of truss; Main couple upper chord 5 welds bar 8 of marking time, is used for supporting stair step.
Main couple 1 and sub-truss 2 must determine concrete length through calculating, and calculating principle is make it meet supporting capacity under normal service load effect and amount of deflection requirement; Filler 4 is lightweight polyphenyl plate, need meet from heavy and light, fireproof requirement, namely not increase deadweight, is met again the requirement of fire endurance by parcel main couple 1 and sub-truss 2; Surface layer 3 is concrete or mortar, included gauze wire cloth, strengthens surface layer intensity, prevents surface layer from occurring crack.
Main couple 1 is angle steel or C-type steel with the main rod member of sub-truss 2.By different Type of Welding, the most stair forms comprising straight stair, two race stair, spiral stairs can be combined into.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (9)
1. the light prefabricated stair of steel truss, it is characterized in that, comprise the prefabricated main couple being formed and mark time with two parallel stair platforms, be fixedly connected with prefabricated sub-truss between described two parallel stair platforms, described prefabricated main couple and prefabricated sub-truss form precast stair main stress skeleton; Precast stair main stress skeleton outer layer covers surface layer; Filler is provided with in the gap of precast stair main stress skeleton.
2. the light prefabricated stair of steel truss as claimed in claim 1, it is characterized in that, the composition rod member of described prefabricated main couple and prefabricated sub-truss is angle steel or C-type steel.
3. the light prefabricated stair of steel truss as claimed in claim 1, is characterized in that, intersect vertically between described prefabricated sub-truss and two parallel stair platforms.
4. the light prefabricated stair of steel truss as claimed in claim 1, it is characterized in that, described prefabricated main couple comprises main couple upper chord and main couple lower chord, and main couple upper chord and main couple lower chord are two parallel stair platforms; Main couple web member is provided with between described main couple upper chord and main couple lower chord; Described main couple upper chord fixedly to be marked time bar.
5. the light prefabricated stair of steel truss as claimed in claim 1, is characterized in that, described precast stair main stress skeleton scribble fire prevention and antirusting paint.
6. the light prefabricated stair of steel truss as claimed in claim 1, it is characterized in that, described filler is lightweight polyphenyl plate.
7. the light prefabricated stair of steel truss as claimed in claim 1, it is characterized in that, described surface layer is concrete or mortar.
8. the light prefabricated stair of steel truss as claimed in claim 7, is characterized in that, the included gauze wire cloth of described surface layer.
9. the light prefabricated stair of steel truss as claimed in claim 1, it is characterized in that, described prefabricated sub-truss is connected with two parallel stair platform weldings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248551.XU CN204571133U (en) | 2015-04-22 | 2015-04-22 | The light prefabricated stair of a kind of steel truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520248551.XU CN204571133U (en) | 2015-04-22 | 2015-04-22 | The light prefabricated stair of a kind of steel truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204571133U true CN204571133U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520248551.XU Expired - Fee Related CN204571133U (en) | 2015-04-22 | 2015-04-22 | The light prefabricated stair of a kind of steel truss |
Country Status (1)
| Country | Link |
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| CN (1) | CN204571133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915180A (en) * | 2018-08-20 | 2018-11-30 | 柏林 | A kind of steel building stair |
| CN110241987A (en) * | 2019-06-27 | 2019-09-17 | 苏州美瑞德建筑装饰有限公司 | A kind of F-C paint steel construction stone material is marked time stair mounting structure |
| CN111305495A (en) * | 2020-03-15 | 2020-06-19 | 湖南城市学院 | Lightweight concrete combined stair |
| CN113266116A (en) * | 2021-05-19 | 2021-08-17 | 济南一建集团有限公司 | Prefabricated stair structure and manufacturing and mounting method thereof |
-
2015
- 2015-04-22 CN CN201520248551.XU patent/CN204571133U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915180A (en) * | 2018-08-20 | 2018-11-30 | 柏林 | A kind of steel building stair |
| CN110241987A (en) * | 2019-06-27 | 2019-09-17 | 苏州美瑞德建筑装饰有限公司 | A kind of F-C paint steel construction stone material is marked time stair mounting structure |
| CN111305495A (en) * | 2020-03-15 | 2020-06-19 | 湖南城市学院 | Lightweight concrete combined stair |
| CN113266116A (en) * | 2021-05-19 | 2021-08-17 | 济南一建集团有限公司 | Prefabricated stair structure and manufacturing and mounting method thereof |
| CN113266116B (en) * | 2021-05-19 | 2024-08-16 | 济南一建集团有限公司 | Manufacturing and installing method of prefabricated stair structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250101 1-6, 11, Shun Tai Plaza, 2000 Shun Hua Road, Ji'nan high tech Zone, Shandong. Patentee after: Tongyuan Design Group Co. Ltd. Address before: 250101 1-6, 11, Shun Tai Plaza, 2000 Shun Hua Road, Ji'nan high tech Zone, Shandong. Patentee before: Shandong Tongyuan Design Group Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20190422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |