CN102535771A - Large-span prestress string-crossed support steel stair - Google Patents
Large-span prestress string-crossed support steel stair Download PDFInfo
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- CN102535771A CN102535771A CN2011104561139A CN201110456113A CN102535771A CN 102535771 A CN102535771 A CN 102535771A CN 2011104561139 A CN2011104561139 A CN 2011104561139A CN 201110456113 A CN201110456113 A CN 201110456113A CN 102535771 A CN102535771 A CN 102535771A
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- vertical strut
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Abstract
A large-span prestress string-crossed support steel stair comprises treading boards, landing platforms, at least two stair beams, support beams, longitudinal support rods, vertical support rods and steel pull rods. Each stair beam comprises a lower inclined section, a middle inclined section and an upper inclined section, the lower inclined sections are connected with the lower ends of the middle inclined sections through lower platform sections, the upper ends of the middle inclined sections are connected with the upper ends of the upper inclined section through upper platform sections, the treading boards are mounted on the lower inclined sections, the middle inclined sections and the upper inclined sections step by step, the front end and the rear end of the upper platform sections and the lower platform sections are fixedly connected with the lower portions of the support beams, the upper ends of the support beams are connected with the landing platforms fixedly, the bottom surfaces of the upper platform sections and the lower platform sections are fixedly connected with the upper ends of at least two vertical support rods, the lower ends of the vertical support rods are fixedly connected with the longitudinal support rods, the longitudinal support rods are connected with one ends of the steel pull rods, and the other ends of the steel pull rods are fixedly connected with the lower inclined sections, the middle inclined sections and the upper inclined sections. The large-span prestress string-crossed support steel stair is large in span, small in appearance size and low in deformation.
Description
Technical field
The invention belongs to the staircase structure field, relate in particular to a kind of steel stair.
Background technology
At present, the known stair of striding greatly mainly adopt the middle frame structure system that column is arranged.It is owing to adopt middle standing pillar that there is its major advantage of stair of striding greatly of column the centre, has reduced the design span of stair effectively, and structure design is simple relatively; Shortcoming is that middle standing pillar has changed Exterior Design, can't satisfy the architectural image requirement.
Summary of the invention
In order to overcome can't realizing large span, can't satisfying the deficiency that architectural image requires of existing stair, the present invention provides a kind of effective realization stair large span, reduces the stair distortion, outward appearance is slim and graceful strides prestressing force greatly and intersects string and prop up steel stair.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of prestressing force intersection string of striding greatly props up steel stair; Comprise step plate and landing slab; Said steel stair also comprises at least two terraced beams, joist, vertical strut, vertical strut and reinforcing pull rod, and said terraced beam comprises inclination hypomere, inclination stage casing and inclination epimere, and said inclination hypomere is connected with the lower end in inclination stage casing by the lower platform section; The upper end in said inclination stage casing is connected with the upper end that tilts by the upper mounting plate section; Said step plate is installed on inclination hypomere, inclination stage casing and the inclination epimere step by step, and the front and back ends of said upper mounting plate section and lower platform section is fixedlyed connected with the bottom of joist respectively, fixedlys connected with landing slab in the upper end of said joist;
The bottom surface of said upper mounting plate section and lower platform section all is fixedly connected with the upper end of two vertical struts at least, and the lower end of said vertical strut all is fixedly connected with vertical strut;
Vertically strut is connected with an end of reinforcing pull rod, and the other end of reinforcing pull rod is fixedlyed connected with said inclination hypomere, inclination stage casing and inclination epimere.
Further, said reinforcing pull rod comprises down in the reinforcing pull rod, first reinforcing pull rod and last reinforcing pull rod in the reinforcing pull rod, second,
Said reinforcing pull rod down is positioned at inclination hypomere below, fixedlys connected with the lower end of inclination hypomere in the said lower end of reinforcing pull rod down, fixedlys connected with vertical strut of lower platform section below in the upper end of said reinforcing pull rod down;
In said first in the reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, fixedly connected with the lower end in inclination stage casing in the lower end of reinforcing pull rod in said first, fixedly connected with the vertical strut below the upper mounting plate section in the upper end of reinforcing pull rod in said first; In said second fixedly connected with the upper end in inclination stage casing in the upper end of reinforcing pull rod, and said the is to fixedly connected with vertical strut of lower platform section below in the lower end of middle reinforcing pull rod;
The said reinforcing pull rod of going up is positioned at inclination epimere below, fixedlys connected with the upper end of inclination epimere in said upper end of going up reinforcing pull rod, fixedlys connected with vertical strut of upper mounting plate section below in said lower end of going up reinforcing pull rod.
Further again, said vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
Or: said vertical strut has at least two, and vertical strut is installed between adjacent vertical strut, and each vertical strut forms trussed construction.
Be illustrated in figure 1 as vertical strut and be two situation, certainly, vertically strut also can be 1,3 or more, as long as form trussed construction between the vertical strut, vertical strut;
Wherein, preferred scheme is each vertical equal in length that supports, certainly, and also can be unequal.
Further, the upper and lower end of said reinforcing pull rod is connected with steel fastener respectively.
Said terraced beam has three, and three terraced beams lay respectively at a side, middle part and the opposite side of step plate.Certainly, terraced beam also can be two, four or more, if two, then two terraced beams are arranged in the both sides of step plate bottom; If four or more, the equally spaced step plate bottom that is arranged in.
Technical conceive of the present invention is: terraced beam, vertical strut and reinforcing pull rod are formed string strutbeam system, and two groups of systems are intersected each other; Vertically strut connects each Pin string and props up the system bottom, and joist connects its top, and it is stable outward to guarantee that each Pin string props up the face of system, improves prestressing force and intersects string and prop up the stair globality; Step plate is laid on terraced beam and the joist; Change the initial pretension of reinforcing pull rod, vertical deformation and natural frequency that control intersection string props up stair.
Though the construction pre-stress technology has been applied to the every field of building structure widely, the engineering that is applied on the stair still belongs to rare.Span to stair is big, and requirements such as load weight, moulding U.S.A intersect the string system of propping up with prestressing force and are used for steel stair, have solved the problems referred to above effectively, has satisfied the function and the requirement of building, has realized the handsome in appearance slim and graceful of stair.
Beneficial effect of the present invention mainly shows: 1, the span of stair is big, can reach 25m; 2, the width of stair is big, can reach 8m; 3, stair do not have the span centre column, and structure is merrily and lightheartedly attractive in appearance; 4, the supporting capacity of stair is high; 5, the rigidity of stair is big, and natural frequency is high, and comfortableness is good; 6, terraced beam be connected with reinforcing pull rod simply, reliable; 7, compliant requirement, safe and reliable.
Description of drawings
Fig. 1 strides the structure chart that prestressing force intersection string props up steel stair greatly;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the sketch map of top string Zhi Jiedian;
Fig. 4 is the sketch map of bottom string Zhi Jiedian;
Fig. 5 is the annexation sketch map of joist and terraced beam.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1～Fig. 5; A kind of prestressing force intersection string of striding greatly props up steel stair; Comprise step plate 5 and landing slab 7, said steel stair also comprises at least two terraced beams 1, joist 6, vertically strut 3, vertical strut 2 and reinforcing pull rod 4, and said terraced beam 1 comprises inclination hypomere, inclination stage casing and inclination epimere; Said inclination hypomere is connected with the lower end in inclination stage casing through the lower platform section; The upper end in said inclination stage casing is connected with the upper end that tilts through the upper mounting plate section, and said step plate 5 is installed on inclination hypomere, inclination stage casing and the inclination epimere step by step, and the front and back ends of said upper mounting plate section and lower platform section is fixedly connected with the bottom of joist 6 respectively; The upper end of said joist 6 is fixedly connected with landing slab 7
All fixedlying connected with the upper end of two vertical struts 2 at least in the bottom surface of said upper mounting plate section and lower platform section, all fixedlys connected with vertical strut 3 in the lower end of said vertical strut 2;
Vertically strut 3 is connected with an end of reinforcing pull rod 4, and the other end of reinforcing pull rod 4 is fixedly connected with said inclination hypomere, inclination stage casing and inclination epimere.
Said reinforcing pull rod 4 comprises down in the reinforcing pull rod, first reinforcing pull rod and last reinforcing pull rod in the reinforcing pull rod, second,
Said reinforcing pull rod down is positioned at inclination hypomere below, fixedlys connected with the lower end of inclination hypomere in the said lower end of reinforcing pull rod down, fixedlys connected with vertical strut of lower platform section below in the upper end of said reinforcing pull rod down;
In said first in the reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, fixedly connected with the lower end in inclination stage casing in the lower end of reinforcing pull rod in said first, fixedly connected with the vertical strut below the upper mounting plate section in the upper end of reinforcing pull rod in said first; In said second fixedly connected with the upper end in inclination stage casing in the upper end of reinforcing pull rod, and said the is to fixedly connected with vertical strut of lower platform section below in the lower end of middle reinforcing pull rod;
The said reinforcing pull rod of going up is positioned at inclination epimere below, fixedlys connected with the upper end of inclination epimere in said upper end of going up reinforcing pull rod, fixedlys connected with vertical strut of upper mounting plate section below in said lower end of going up reinforcing pull rod.
Further again, said vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
Or: said vertical strut has at least two, and vertical strut is installed between adjacent vertical strut, and each vertical strut forms trussed construction.
Be illustrated in figure 1 as vertical strut and be two situation, certainly, vertically strut also can be 1,3 or more, as long as form trussed construction between the vertical strut, vertical strut; Wherein, preferred scheme is each vertical equal in length that supports, certainly, and also can be unequal.
The upper and lower end of said reinforcing pull rod 4 is connected with steel fastener 8 respectively.
Said terraced beam 1 has three, and three terraced beams lay respectively at a side, middle part and the opposite side of step plate.Certainly, terraced beam also can be two, four or more, if two, then two terraced beams are arranged in the both sides of step plate bottom; If four or more, the equally spaced step plate bottom that is arranged in.
In the present embodiment, terraced beam 1, vertical strut 2 and reinforcing pull rod 4 are formed string strutbeam systems, and two groups of systems are intersected each other; Vertically strut 3 connects each Pin string and props up the system bottom, and joist 6 connects its tops, and it is stable outward to guarantee that each Pin string props up the face of system, improves prestressing force and intersects string and prop up the stair globality; Step plate 5 is laid on respectively on terraced beam 1 and the joist 6 with landing slab 7, through changing the initial pretension of reinforcing pull rod 4, can control vertical deformation and natural frequency that the intersection string props up stair.
Claims (6)
1. stride prestressing force greatly and intersect string and prop up steel stair for one kind; Comprise step plate and landing slab; It is characterized in that: said steel stair also comprises at least two terraced beams, joist, vertical strut, vertical strut and reinforcing pull rod, and said terraced beam comprises inclination hypomere, inclination stage casing and inclination epimere, and said inclination hypomere is connected with the lower end in inclination stage casing by the lower platform section; The upper end in said inclination stage casing is connected with the upper end that tilts by the upper mounting plate section; Said step plate is installed on inclination hypomere, inclination stage casing and the inclination epimere step by step, and the front and back ends of said upper mounting plate section and lower platform section is fixedlyed connected with the bottom of joist respectively, fixedlys connected with landing slab in the upper end of said joist;
The bottom surface of said upper mounting plate section and lower platform section all is fixedly connected with the upper end of two vertical struts at least, and the lower end of said vertical strut all is fixedly connected with vertical strut;
Vertically strut is connected with an end of reinforcing pull rod, and the other end of reinforcing pull rod is fixedlyed connected with said inclination hypomere, inclination stage casing and inclination epimere.
2. the prestressing force of striding greatly as claimed in claim 1 intersects string and props up steel stair, it is characterized in that: said reinforcing pull rod comprises down in the reinforcing pull rod, first reinforcing pull rod and last reinforcing pull rod in the reinforcing pull rod, second,
Said reinforcing pull rod down is positioned at inclination hypomere below, fixedlys connected with the lower end of inclination hypomere in the said lower end of reinforcing pull rod down, fixedlys connected with vertical strut of lower platform section below in the upper end of said reinforcing pull rod down;
In said first in the reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, fixedly connected with the lower end in inclination stage casing in the lower end of reinforcing pull rod in said first, fixedly connected with the vertical strut below the upper mounting plate section in the upper end of reinforcing pull rod in said first; In said second fixedly connected with the upper end in inclination stage casing in the upper end of reinforcing pull rod, and said the is to fixedly connected with vertical strut of lower platform section below in the lower end of middle reinforcing pull rod;
The said reinforcing pull rod of going up is positioned at inclination epimere below, fixedlys connected with the upper end of inclination epimere in said upper end of going up reinforcing pull rod, fixedlys connected with vertical strut of upper mounting plate section below in said lower end of going up reinforcing pull rod.
3. according to claim 1 or claim 2 the prestressing force of striding greatly intersects string and props up steel stair, and it is characterized in that: said vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
4. according to claim 1 or claim 2 the prestressing force of striding greatly intersects string and props up steel stair, and it is characterized in that: said vertical strut has at least two, and vertical strut is installed between adjacent vertical strut, and each vertical strut forms trussed construction.
5. according to claim 1 or claim 2 the prestressing force of striding greatly intersects string and props up steel stair, and it is characterized in that: the upper and lower end of said reinforcing pull rod is connected with steel fastener respectively.
6. according to claim 1 or claim 2 the prestressing force of striding greatly intersects string and props up steel stair, and it is characterized in that: said terraced beam has three, and three terraced beams lay respectively at a side, middle part and the opposite side of step plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104561139A CN102535771B (en) | 2011-12-31 | 2011-12-31 | Large-span prestress string-crossed support steel stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104561139A CN102535771B (en) | 2011-12-31 | 2011-12-31 | Large-span prestress string-crossed support steel stair |
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| CN102535771A true CN102535771A (en) | 2012-07-04 |
| CN102535771B CN102535771B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104561139A Active CN102535771B (en) | 2011-12-31 | 2011-12-31 | Large-span prestress string-crossed support steel stair |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316579A (en) * | 2018-03-07 | 2018-07-24 | 深圳华森建筑与工程设计顾问有限公司 | The staircase structure of super-span |
| CN113279529A (en) * | 2021-06-28 | 2021-08-20 | 北京城建集团有限责任公司 | Large-span disassembly-free ladder structure based on steel bar truss floor support plate and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687214Y (en) * | 2004-03-10 | 2005-03-23 | 董学君 | Truss type assembled stairway |
| DE202006009173U1 (en) * | 2006-06-08 | 2006-10-19 | Peter Maier Leichtbau Gmbh | Staircase for bridge systems, has two stair stringers and steps, where one step is either detachably and/or rotatably arranged between stair stringers or supported on stop, and is connected with stair stringers by bolt fastener |
| CN201850713U (en) * | 2010-08-31 | 2011-06-01 | 成都春江科技有限公司 | Oblique sliding dual-purpose emergency staircase |
| CN102261058A (en) * | 2011-01-10 | 2011-11-30 | 中格复合材料（南通）有限公司 | Oil platform with hand rails |
| CN202416744U (en) * | 2011-12-31 | 2012-09-05 | 苏州工业园区设计研究院股份有限公司 | Large-span pre-stressed cross-chord support steel stair |
-
2011
- 2011-12-31 CN CN2011104561139A patent/CN102535771B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687214Y (en) * | 2004-03-10 | 2005-03-23 | 董学君 | Truss type assembled stairway |
| DE202006009173U1 (en) * | 2006-06-08 | 2006-10-19 | Peter Maier Leichtbau Gmbh | Staircase for bridge systems, has two stair stringers and steps, where one step is either detachably and/or rotatably arranged between stair stringers or supported on stop, and is connected with stair stringers by bolt fastener |
| CN201850713U (en) * | 2010-08-31 | 2011-06-01 | 成都春江科技有限公司 | Oblique sliding dual-purpose emergency staircase |
| CN102261058A (en) * | 2011-01-10 | 2011-11-30 | 中格复合材料（南通）有限公司 | Oil platform with hand rails |
| CN202416744U (en) * | 2011-12-31 | 2012-09-05 | 苏州工业园区设计研究院股份有限公司 | Large-span pre-stressed cross-chord support steel stair |
Non-Patent Citations (3)
| Title |
|---|
| 张云英等: "大跨度折线型平台无支撑楼梯计算", 《低温建筑技术》 * |
| 谈丽萍: "浅谈大跨板式楼梯设计", 《建材世界》 * |
| 顾小峰: "某大跨度异形板式楼梯的结构设计与分析", 《山西建筑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316579A (en) * | 2018-03-07 | 2018-07-24 | 深圳华森建筑与工程设计顾问有限公司 | The staircase structure of super-span |
| CN113279529A (en) * | 2021-06-28 | 2021-08-20 | 北京城建集团有限责任公司 | Large-span disassembly-free ladder structure based on steel bar truss floor support plate and construction method thereof |
| CN113279529B (en) * | 2021-06-28 | 2023-09-29 | 北京城建集团有限责任公司 | Large-span disassembly-free ladder structure based on steel bar truss floor support plate and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN102535771B (en) | 2013-11-20 |
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Address after: Suzhou City, Jiangsu province 215028 Industrial Park Suzhou Bada Street No. 111 Patentee after: ARTS GROUP CO., LTD. Address before: Suzhou Industrial Park Suzhou City, Jiangsu province 215126 Sheng Pu Zhen Jin Sheng Lu No. 12 Patentee before: Suzhou Industrial Park Design & Research Institute Co., Ltd. |