CN102535771B - Large-span prestress string-crossed support steel stair - Google Patents
Large-span prestress string-crossed support steel stair Download PDFInfo
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- CN102535771B CN102535771B CN2011104561139A CN201110456113A CN102535771B CN 102535771 B CN102535771 B CN 102535771B CN 2011104561139 A CN2011104561139 A CN 2011104561139A CN 201110456113 A CN201110456113 A CN 201110456113A CN 102535771 B CN102535771 B CN 102535771B
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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 frame structure system that column is arranged in the middle of mainly adopting across stair greatly.What there was column centre is owing to adopting middle standing pillar across its major advantage of stair greatly, has effectively reduced the design span of stair, and structure design is relatively simple; Shortcoming is that middle standing pillar has changed Exterior Design, can't meet the architectural image requirement.
Summary of the invention
In order to overcome can't realizing large span, can't meeting the deficiency that architectural image requires of existing stair, the invention provides and a kind ofly effectively realize the stair large span, reduce the stair distortion, outward appearance is slim and graceful greatly across the prestressing force string-crossed support steel stair.
The technical solution adopted for the present invention to solve the technical problems is:
a kind of greatly across the prestressing force string-crossed support steel stair, comprise step plate and landing slab, described steel stair also comprises at least two terraced beams, joist, vertical strut, vertical strut and reinforcing pull rod, described terraced beam comprises the inclination hypomere, inclination stage casing and inclination epimere, described inclination hypomere is connected with the lower end in inclination stage casing by the lower platform section, the upper end in described inclination stage casing is connected with the inclination upper end by the upper mounting plate section, described step plate is arranged on the inclination hypomere step by step, on inclination stage casing and inclination epimere, before described upper mounting plate section and lower platform section, rear end is fixedly connected with the bottom of joist respectively, the upper end of described joist is fixedly connected with landing slab,
The bottom surface of described 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 described 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 fixedly connected with described inclination hypomere, inclination stage casing and inclination epimere.
Further, described reinforcing pull rod comprises in lower reinforcing pull rod, first reinforcing pull rod and upper reinforcing pull rod in reinforcing pull rod, second,
Described lower reinforcing pull rod is positioned at inclination hypomere below, and the lower end of described lower reinforcing pull rod is fixedly connected with the lower end of inclination hypomere, and the upper end of described lower reinforcing pull rod is fixedly connected with vertical strut of lower platform section below;
In described first in reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, the lower end of reinforcing pull rod is fixedly connected with the lower end in inclination stage casing in described first, the upper end of reinforcing pull rod is fixedly connected with the vertical strut below the upper mounting plate section in described first; In described second, the upper end of reinforcing pull rod is fixedly connected with the upper end in inclination stage casing, and the lower end of reinforcing pull rod is fixedly connected with vertical strut of lower platform section below in described second;
Described upper reinforcing pull rod is positioned at inclination epimere below, and the upper end of described upper reinforcing pull rod is fixedly connected with the upper end of inclination epimere, and the lower end of described upper reinforcing pull rod is fixedly connected with vertical strut of upper mounting plate section below.
Further again, described vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
Or: described 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 vertical strut and be the situation of two, certainly, vertically strut also can be 1,3 or more, as long as form trussed construction between vertical strut, vertical strut;
Wherein, preferred scheme is the equal in length of each vertical supporting, certainly, and also can be unequal.
Further, the upper and lower end of described reinforcing pull rod is connected with steel fastener respectively.
Described 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, 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 form string strutbeam system, and two groups of systems are intersected mutually; Vertical strut connects each Pin string and props up the system bottom, and joist connects its top, guarantees that each Pin string props up the lateral stability of system, improves prestressing force string-crossed support stair globality; Step plate is laid on terraced beam and joist; Change the initial prestress of reinforcing pull rod, control vertical deformation and the natural frequency of string-crossed support stair.
Though the construction pre-stress technology has been applied to the every field of building structure widely, the engineering that is applied on stair still belongs to rare.Span for stair is large, and the requirements such as load weight, the Beauty for steel stair, have solved the problems referred to above by prestressing force string-crossed support system effectively, has met function and the requirement of building, has realized the handsome in appearance slim and graceful of stair.
Beneficial effect of the present invention is mainly manifested in: 1, the span of stair is large, can reach 25m; 2, the width of stair is large, can reach 8m; 3, stair are without 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 large, and natural frequency is high, and comfortableness is good; 6, terraced beam with reinforcing pull rod, be connected simply, reliable; 7, meet code requirement, safe and reliable.
The accompanying drawing explanation
Fig. 1 is large structure chart across the prestressing force string-crossed support steel stair;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the schematic diagram of top string Zhi Jiedian;
Fig. 4 is the schematic diagram of bottom string Zhi Jiedian;
Fig. 5 is the annexation schematic diagram of joist and terraced beam.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
with reference to Fig. 1～Fig. 5, a kind of greatly across the prestressing force string-crossed support steel stair, comprise step plate 5 and landing slab 7, described steel stair also comprises at least two terraced beams 1, joist 6, vertical strut 3, vertical strut 2 and reinforcing pull rod 4, described terraced beam 1 comprises the inclination hypomere, inclination stage casing and inclination epimere, described inclination hypomere is connected with the lower end in inclination stage casing by the lower platform section, the upper end in described inclination stage casing is connected with the inclination upper end by the upper mounting plate section, described step plate 5 is arranged on the inclination hypomere step by step, on inclination stage casing and inclination epimere, before described upper mounting plate section and lower platform section, rear end is fixedly connected with the bottom of joist 6 respectively, the upper end of described joist 6 is fixedly connected with landing slab 7,
The bottom surface of described upper mounting plate section and lower platform section all is fixedly connected with the upper end of two vertical struts 2 at least, and the lower end of described vertical strut 2 all is fixedly connected with vertical strut 3;
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 described inclination hypomere, inclination stage casing and inclination epimere.
Described reinforcing pull rod 4 comprises in lower reinforcing pull rod, first reinforcing pull rod and upper reinforcing pull rod in reinforcing pull rod, second,
Described lower reinforcing pull rod is positioned at inclination hypomere below, and the lower end of described lower reinforcing pull rod is fixedly connected with the lower end of inclination hypomere, and the upper end of described lower reinforcing pull rod is fixedly connected with vertical strut of lower platform section below;
In described first in reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, the lower end of reinforcing pull rod is fixedly connected with the lower end in inclination stage casing in described first, the upper end of reinforcing pull rod is fixedly connected with the vertical strut below the upper mounting plate section in described first; In described second, the upper end of reinforcing pull rod is fixedly connected with the upper end in inclination stage casing, and the lower end of reinforcing pull rod is fixedly connected with vertical strut of lower platform section below in described second;
Described upper reinforcing pull rod is positioned at inclination epimere below, and the upper end of described upper reinforcing pull rod is fixedly connected with the upper end of inclination epimere, and the lower end of described upper reinforcing pull rod is fixedly connected with vertical strut of upper mounting plate section below.
Further again, described vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
Or: described 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 vertical strut and be the situation of two, certainly, vertically strut also can be 1,3 or more, as long as form trussed construction between vertical strut, vertical strut; Wherein, preferred scheme is the equal in length of each vertical supporting, certainly, and also can be unequal.
The upper and lower end of described reinforcing pull rod 4 is connected with steel fastener 8 respectively.
Described 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, 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 form string strutbeam system, and two groups of systems are intersected mutually; Vertically strut 3 each Pin strings of connection prop up the system bottom, and joist 6 connects its tops, guarantees that each Pin string props up the lateral stability of system, improve prestressing force string-crossed support stair globality; Step plate 5 and landing slab 7 are laid on respectively on terraced beam 1 and joist 6, by changing the initial prestress of reinforcing pull rod 4, can control vertical deformation and the natural frequency of string-crossed support stair.
Claims (5)
1. one kind greatly across the prestressing force string-crossed support steel stair, comprise step plate and landing slab, it is characterized in that: described steel stair also comprises two terraced beams, joist, vertical strut, vertical strut and reinforcing pull rod, described terraced beam comprises the inclination hypomere, inclination stage casing and inclination epimere, described inclination hypomere is connected with the lower end in inclination stage casing by the lower platform section, the upper end in described inclination stage casing is connected with the inclination upper end by the upper mounting plate section, described step plate is arranged on the inclination hypomere step by step, on inclination stage casing and inclination epimere, before described upper mounting plate section and lower platform section, rear end is fixedly connected with the bottom of joist respectively, the upper end of described joist is fixedly connected with landing slab,
The bottom surface of described 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 described 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 fixedly connected with described inclination hypomere, inclination stage casing and inclination epimere; The ladder beam has two, and terraced beam is arranged in the both sides of step plate bottom.
2. as claimed in claim 1 greatly across the prestressing force string-crossed support steel stair, it is characterized in that: described reinforcing pull rod comprises in lower reinforcing pull rod, first reinforcing pull rod and upper reinforcing pull rod in reinforcing pull rod, second,
Described lower reinforcing pull rod is positioned at inclination hypomere below, and the lower end of described lower reinforcing pull rod is fixedly connected with the lower end of inclination hypomere, and the upper end of described lower reinforcing pull rod is fixedly connected with vertical strut of lower platform section below;
In described first in reinforcing pull rod and second reinforcing pull rod be positioned at inclination stage casing below, the lower end of reinforcing pull rod is fixedly connected with the lower end in inclination stage casing in described first, the upper end of reinforcing pull rod is fixedly connected with the vertical strut below the upper mounting plate section in described first; In described second, the upper end of reinforcing pull rod is fixedly connected with the upper end in inclination stage casing, and the lower end of reinforcing pull rod is fixedly connected with vertical strut of lower platform section below in described second;
Described upper reinforcing pull rod is positioned at inclination epimere below, and the upper end of described upper reinforcing pull rod is fixedly connected with the upper end of inclination epimere, and the lower end of described upper reinforcing pull rod is fixedly connected with vertical strut of upper mounting plate section below.
3. as claimed in claim 1 or 2 greatly across the prestressing force string-crossed support steel stair, it is characterized in that: described vertical strut is one, and two vertical struts and upper mounting plate section or lower platform section all form triangular structure.
4. as claimed in claim 1 or 2 greatly across the prestressing force string-crossed support steel stair, it is characterized in that: described vertical strut has at least two, and vertical strut is installed between adjacent vertical strut, and each vertical strut forms trussed construction.
5. as claimed in claim 1 or 2 greatly across the prestressing force string-crossed support steel stair, it is characterized in that: the upper and lower end of described reinforcing pull rod is connected with steel fastener respectively.
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 |
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| 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 CN102535771A (en) | 2012-07-04 |
| CN102535771B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316579B (en) * | 2018-03-07 | 2024-06-04 | 深圳华森建筑与工程设计顾问有限公司 | Super large span stair structure |
| 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 |
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 (6)
| Title |
|---|
| 大跨度折线型平台无支撑楼梯计算;张云英等;《低温建筑技术》;20040828(第04期);第46-47和64页 * |
| 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》.2004,(第04期),第46-47和64页. |
| 某大跨度异形板式楼梯的结构设计与分析;顾小峰;《山西建筑》;20091001(第28期);第76-77页 * |
| 浅谈大跨板式楼梯设计;谈丽萍;《建材世界》;20101015(第05期);第63-65页 * |
| 谈丽萍.浅谈大跨板式楼梯设计.《建材世界》.2010,(第05期),第63-65页. |
| 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》.2009,(第28期),第76-77页. |
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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. |