CN204186014U - Without cleat stanchion self-bearing type steel ladder - Google Patents
Without cleat stanchion self-bearing type steel ladder Download PDFInfo
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- CN204186014U CN204186014U CN201420530531.7U CN201420530531U CN204186014U CN 204186014 U CN204186014 U CN 204186014U CN 201420530531 U CN201420530531 U CN 201420530531U CN 204186014 U CN204186014 U CN 204186014U
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- half space
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- bearing type
- cleat stanchion
- type steel
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Abstract
The utility model relates to a kind of without cleat stanchion self-bearing type steel ladder, comprises at least one group without cleat stanchion self-bearing type steel ladder assembly.Often the upper and lower two-layer main platform of group without the connection of cleat stanchion self-bearing type steel ladder assembly is provided with fixture.Set up at least one at half space and run through beam, one end of every root ladder beam is welded with fixture, the strong butt welding such as the other end and a half space beam; The step plate of upper bench upper end welds with fixture; Every root runs through Liang Junyu each half space beam two-sided welding; The welding position place that every root runs through beam and each half space beam is provided with the clamping device running through beam described in clamping.Run through beam by arranging, steel ladder can not establish supporting upright post at half space place, leaves sufficient space to below steel ladder, can make other purposes.The steel using amount that column needs and the concrete material amount arranged needed for upright post basic can be saved simultaneously, therefore also just there is no concrete curing period.
Description
Technical field
The utility model relates to stair device technique field, is specifically related to a kind of without cleat stanchion self-bearing type steel ladder.
Background technology
At present, common steel ladder needs to be supported by ground column, and the existence because of column makes steel ladder lower space to utilize; Need to lay the foundations with concrete owing to arranging column on the ground simultaneously, need to consume corresponding concrete material, and concrete exists the problem of curing period.
Therefore be necessary to design one without cleat stanchion self-bearing type steel ladder, to overcome the problems referred to above.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of without cleat stanchion self-bearing type steel ladder, can use without the need to column supporting.
The utility model is achieved in that
The utility model provides a kind of without cleat stanchion self-bearing type steel ladder, comprises at least one group without cleat stanchion self-bearing type steel ladder assembly.Often group is without cleat stanchion self-bearing type steel ladder assembly between upper and lower two-layer main platform, comprises the upper bench of connection upper layer main body platform, the lower bench connecting lower floor's main platform and the half space be connected with upper bench and lower bench respectively; The step plate that described upper bench and lower bench include two terraced beams and be fixed between two terraced beams, described half space comprises four half space beams, described upper and lower two-layer main platform is provided with fixture, one end of every root ladder beam is welded with fixture, the strong butt welding such as the other end and a half space beam; The step plate of described upper bench upper end welds with described fixture; Described half space also comprises at least one and runs through beam, and every root runs through Liang Junyu each half space beam two-sided welding; The welding position place that every root runs through beam and each half space beam is provided with the clamping device running through beam described in clamping.
Further, described clamping device for two pieces be arranged on described in run through the steel plate of beam both sides, every block plate all with run through beam two-sided welding; The welding position place of described half space beam and terraced beam forms an assembled panel, near the steel plate of terraced beam side be all positioned at described assembled panel place and with three weld all arounds of described assembled panel, other steel plate all with three weld all arounds of half space beam.
Further, run through beam described in be formed by two channel-section steel butt welding.
Further, described half space also comprises an edge sealing beam, each half space beam away from terraced beam one end all with described envelope side bar welding.
Further, described main platform is concrete structure platform, and described fixture is embedded part.
Further, described main platform is steel structure platform, and described fixture is the girder steel of described steel structure platform.
The utility model has following beneficial effect: run through beam by arranging, steel ladder can not be supported by column, leaves sufficient space to below steel ladder, can make other purposes.Compare conventional steel ladder, the steel using amount that column needs can be saved.Without column supporting, the concrete material amount arranged needed for upright post basic can be saved, also just there is no concrete curing period simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic top plan view without cleat stanchion self-bearing type steel ladder assembly that Fig. 1 provides for the utility model embodiment;
The schematic perspective view without cleat stanchion self-bearing type steel ladder assembly that Fig. 2 provides for the utility model embodiment;
The structural representation that the half space beam that Fig. 3 provides for the utility model embodiment is connected with upper bench ladder beam;
The structural representation that the half space beam that Fig. 4 provides for the utility model embodiment is connected with lower bench ladder beam;
The structural representation that the lower bench ladder beam that Fig. 5 provides for the utility model embodiment is connected with the embedded part of lower-layer concrete structure platform;
The structural representation that the upper bench ladder beam that Fig. 6 provides for the utility model embodiment is connected with the embedded part of upper strata concrete structure platform;
The structural representation that the upper bench ladder beam that Fig. 7 provides for the utility model embodiment is connected with the girder steel of upper strata steel structure platform;
The structural representation that the lower bench ladder beam that Fig. 8 provides for the utility model embodiment is connected with the girder steel of lower floor steel structure platform.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.
As Fig. 1-Fig. 8, the utility model embodiment provides a kind of without cleat stanchion self-bearing type steel ladder, comprises at least one group without cleat stanchion self-bearing type steel ladder assembly.Often group is without cleat stanchion self-bearing type steel ladder assembly between upper and lower two-layer main platform, comprises the upper bench of connection upper layer main body platform, the lower bench connecting lower floor's main platform and the half space be connected with upper bench and lower bench respectively; The step plate that described upper bench and lower bench include two terraced beams 1 and be fixed between two terraced beams 1, described half space comprises four half space beams 2.Described upper and lower two-layer main platform is provided with fixture 6, and one end of every root ladder beam 1 is welded with fixture 6, the strong butt welding such as the other end and a half space beam 2; The step plate of described upper bench upper end welds with described fixture 6; Described half space also comprises at least one and runs through beam 3, every root run through beam 3 all with each half space beam 2 two-sided welding; Every root runs through beam 3 and is provided with the welding position place of each half space beam 2 clamping device running through beam 3 described in clamping.Described clamping device be preferably two pieces be arranged on described in run through the steel plate 5 of beam 3 both sides, every block plate 5 all with run through beam 3 two-sided welding; The welding position place of described half space beam 2 and terraced beam 1 forms an assembled panel, near the steel plate 5 of terraced beam 1 side be all positioned at described assembled panel place and with three weld all arounds of described assembled panel, other steel plate 5 all with 2 three weld all arounds of half space beam.
In actual use procedure, these two bench without cleat stanchion self-bearing type steel ladder assembly support each other, and so terraced beam 1 is bending component or stretch bending component, but not the flexural member in common steel ladder.Because the axial force of steel ladder is little, therefore the size in terraced beam 1 cross section remains and controls by by curved, and therefore the cross section of terraced beam 1 can not change.After the upper bench upper end of self-bearing type steel ladder assembly is fixedly connected with upper and lower two-layer main platform with lower bench lower end, two bench of this self-bearing type steel ladder assembly have the indeformable feature of geometry.Spacing between two bench is less, normally 150 ~ 200mm, beam 3 is run through by what arrange connection two bench, this self-bearing type steel ladder assembly is made to become statically-indeterminate structure, two bench are supported each other, thus the rigidity of this self-bearing type steel ladder assembly can be ensured, also can relievedly use when not arranging supporting upright post.And by arranging steel plate 5, adopt steel plate 5 and run through beam 3 two-sided welding, steel plate 5 and 2 three weld all arounds of half space beam, simultaneously half space beam 2 and the structure running through beam 3 two-sided welding, half space beam 2 tightly can be clamped and run through beam 3, effectively can improve the bulk strength of this self-bearing type steel ladder.Near the steel plate 5 of terraced beam 1 side be all positioned at described assembled panel place and with three weld all arounds of described assembled panel, steel plate 5 is welded with half space beam 2 and terraced beam 1 simultaneously, improves the bulk strength of this self-bearing type steel ladder further.
In addition, the step plate of upper bench upper end also welds with the fixture 6 of upper layer main body platform, can provide the lateral rigidity of this self-bearing type steel ladder, prevent left and right whipping.
In the utility model embodiment, described in run through beam 3 and formed by two channel-section steel butt welding.Adopt the butt welding of double flute steel can form closed cross section, enhance the torsional rigidity running through beam 3, each that is formed postwelding due to double flute steel is all planes simultaneously, is convenient to weld.
As Fig. 1-Fig. 2, as a kind of preferred structure of the utility model embodiment, described half space also comprises an edge sealing beam 4, and each half space beam 2 all welds with described edge sealing beam 4 away from one end of terraced beam 1.Adopt this structure can improve the connection integrity of steel ladder assembly further, improve the integral rigidity of steel ladder.
As Fig. 5-Fig. 8, in the utility model embodiment, preferably, when described main platform is concrete structure platform, described fixture is embedded part.When described main platform is steel structure platform, described fixture is the girder steel of described steel structure platform.
During actual use, what the utility model embodiment provided preferably comprises 1 group without cleat stanchion self-bearing type steel ladder assembly without cleat stanchion self-bearing type steel ladder.Namely use in the parallel stairs of preferential recommendation between two-layer main platform, no matter steel structure platform or concrete structure platform, what the utility model embodiment provided all can apply without cleat stanchion self-bearing type steel ladder.
In the utility model embodiment, utilize finite element software to carry out computational analysis to the stressing conditions without each terraced beam 1 in cleat stanchion self-bearing type steel ladder assembly, result is as follows:
(1) four terraced beam 1 is stretch bending or bending component, axle power absolute value is that the internal force of middle two terraced beams 1 is large, terraced beam 1 internal force of both sides is little, two terraced beams, 1 tensions pressurized of same bench, and such force modes can the requirement of meeting geometric invariable system.In addition, the moment of torsion that bears of terraced beam 1 and the out-of-plane shearing of bench all smaller.Because four terraced beams 1 all weld with the fixture 6 on main platform, the axle power that therefore each terraced beam 1 bears can be applied to main platform carrying.Concrete structure is as shown in table 1.
The stressing conditions table of each terraced beam of table 1
(2) under outside bench inside terraced beam, lower bench inside terraced beam, upper bench outside terraced beam and upper bench the amount of deflection of terraced beam be respectively: 15.0mm, 13.2mm, 13.4mm, 14.9mm, and the amount of deflection of conventional stair is 16.2mm, the allowable deflection of terraced beam is 22.5mm.As can be seen here, this is better than common steel ladder without the anti-deformation of cleat stanchion self-bearing type steel ladder assembly.The Cross section Design of ladder beam is controlled by amount of deflection, and thus comparing conventional elevator beam can not increase material usage.
(3) it is very little that the stress caused by axle power in each terraced beam 1 compares flexural stress, although therefore each terraced beam 1 bends or stretch bending component, but still is the category of flexural member.And the stress that each terraced beam 1 is subject to is much smaller than the design load of steel strength.
Therefore, the requirement meeting steel ladder structure without cleat stanchion self-bearing type steel ladder that the utility model embodiment provides, therefore has following beneficial effect: run through beam by arranging, steel ladder can not be supported by column, leave sufficient space to below steel ladder, other purposes can be made.Compare conventional steel ladder, the steel using amount that column needs can be saved.Without column supporting, the concrete material amount arranged needed for column can be saved, also just there is no concrete curing period simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. without a cleat stanchion self-bearing type steel ladder, it is characterized in that: comprise at least one group without cleat stanchion self-bearing type steel ladder assembly; Often group is without cleat stanchion self-bearing type steel ladder assembly between upper and lower two-layer main platform, comprises the upper bench of connection upper layer main body platform, the lower bench connecting lower floor's main platform and the half space be connected with upper bench and lower bench respectively; The step plate that described upper bench and lower bench include two terraced beams and be fixed between two terraced beams, described half space comprises four half space beams, described upper and lower two-layer main platform is provided with fixture, one end of every root ladder beam is welded with fixture, the strong butt welding such as the other end and a half space beam; The step plate of described upper bench upper end welds with described fixture; Described half space also comprises at least one and runs through beam, and every root runs through Liang Junyu each half space beam two-sided welding; The welding position place that every root runs through beam and each half space beam is provided with the clamping device running through beam described in clamping.
2. according to claim 1 without cleat stanchion self-bearing type steel ladder, it is characterized in that: described clamping device for two pieces be arranged on described in run through the steel plate of beam both sides, every block plate all with run through beam two-sided welding; The welding position place of described half space beam and terraced beam forms an assembled panel, near the steel plate of terraced beam side be all positioned at described assembled panel place and with three weld all arounds of described assembled panel, other steel plate all with three weld all arounds of half space beam.
3. according to claim 1 without cleat stanchion self-bearing type steel ladder, it is characterized in that: described in run through beam and formed by two channel-section steel butt welding.
4. according to claim 1 without cleat stanchion self-bearing type steel ladder, it is characterized in that: described half space also comprises an edge sealing beam, each half space beam away from terraced beam one end all with described envelope side bar welding.
5. according to claim 1 without cleat stanchion self-bearing type steel ladder, it is characterized in that: described main platform is concrete structure platform, described fixture is embedded part.
6. according to claim 1 without cleat stanchion self-bearing type steel ladder, it is characterized in that: described main platform is steel structure platform, described fixture is the girder steel of described steel structure platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530531.7U CN204186014U (en) | 2014-09-16 | 2014-09-16 | Without cleat stanchion self-bearing type steel ladder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530531.7U CN204186014U (en) | 2014-09-16 | 2014-09-16 | Without cleat stanchion self-bearing type steel ladder |
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| CN204186014U true CN204186014U (en) | 2015-03-04 |
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| CN201420530531.7U Active CN204186014U (en) | 2014-09-16 | 2014-09-16 | Without cleat stanchion self-bearing type steel ladder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317179A (en) * | 2015-11-24 | 2016-02-10 | 苏州金螳螂建筑装饰股份有限公司 | Cantilever type unsupported glass stair installation structure and installation method |
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2014
- 2014-09-16 CN CN201420530531.7U patent/CN204186014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317179A (en) * | 2015-11-24 | 2016-02-10 | 苏州金螳螂建筑装饰股份有限公司 | Cantilever type unsupported glass stair installation structure and installation method |
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