CN102311037A - Staircase truss - Google Patents
Staircase truss Download PDFInfo
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- CN102311037A CN102311037A CN201110312168A CN201110312168A CN102311037A CN 102311037 A CN102311037 A CN 102311037A CN 201110312168 A CN201110312168 A CN 201110312168A CN 201110312168 A CN201110312168 A CN 201110312168A CN 102311037 A CN102311037 A CN 102311037A
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- shaped steel
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Abstract
The invention discloses a staircase truss, which is characterized in that a plurality of diagonally-braced section steels are arranged into curvilinear diagonally-braced section steels, the bending degree of the curvilinear diagonally-braced section steel is properly arranged to enable the curvilinear diagonally-braced section steel to have enough strength to support and reinforce the truss, the curvilinear diagonally-braced section steels absorb heat generated during welding to generate thermal stress when the curvilinear diagonally-braced section steels are welded on the staircase truss, the thermal stress acts on the curvilinear diagonally-braced section steels to enable the curvilinear diagonally-braced section steels to be compressed, the curvature radius of the bent part of the compressed curvilinear diagonally-braced section steels becomes smaller, and after the welding is completed and when the heat on the curvilinear diagonally-braced section steels is dissipated slowly, shrinkage stress is generated on the curvilinear diagonally-braced section steels to enable the curvilinear diagonally-braced section steels to be elongated, and the curvature radius of the bent part of the curvilinear diagonally-braced section steels becomes larger. Therefore, the thermal stress which causes expansion on heating and contraction on cooling to the curvilinear diagonally-braced section steels and is caused by the high heat generated during welding is absorbed and released by the bent parts of the curvilinear diagonally-braced section steels, the thermal deformation of the staircase truss generated during welding can be effectively reduced and the yield rate of the truss is improved.
Description
Technical field
the present invention relates to a kind of staircase and girder.
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Background technology
are present, and known moving staircase girders generally all is to adopt welding technology to be made, referring to shown in Figure 1; It is by two parallel shaped steel and a plurality of column are formed basic steel beam structure up and down; For the intensity of reinforced steel beam and girder, added linear diagonal brace shaped steel between a plurality of columns and the shaped steel, after welding; Form a triangle between shaped steel, column and the diagonal brace shaped steel, made whole steel beam structure have enough intensity and stability.
still, in adopting the welding technology sintering procedure, because the high temperature that welding produces; The diagonal brace shaped steel of linearity absorbs violent expansion of heat and extends; After welding was accomplished, the violent contraction in diagonal brace shaped steel cooling back produced bigger shrink stress and makes whole truss deform.Because the thermal deformation process of welding is comparatively complicated, the distortion that truss produces in this process has forms such as distortion, bending, and this Deformation control is difficulty very, and should distortion be difficult to proofread and correct.In process of production, factory generally adopts the fixing environment of frock to weld, thereby reduces deflection as far as possible, but stress is released when truss is removed from frock, is out of shape still unavoidably, and the production yield of truss is low.
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Summary of the invention
the objective of the invention is to overcome the deficiency of prior art, provide a kind of staircase and girder to reduce the thermal deformation that truss produces in welding process.
are for achieving the above object; The technical scheme that the present invention adopts is: a kind of staircase and girder; Comprise first shaped steel, and second shaped steel that parallels of said first shaped steel, be fixedly installed on a plurality of columns and a plurality of diagonal brace shaped steel between said first shaped steel and said second shaped steel; Said a plurality of column and said first shaped steel, the perpendicular setting of said second shaped steel; Said a plurality of diagonal brace shaped steel and said first shaped steel, said second shaped steel tilt setting; Said a plurality of column, said a plurality of diagonal brace shaped steel distribute along the length direction of said first shaped steel, said second shaped steel separately; The both ends of said a plurality of diagonal brace shaped steel are welded respectively and are fixedly installed on said first shaped steel, said second shaped steel, and said a plurality of diagonal brace shaped steel are curve diagonal brace shaped steel, and said curve diagonal brace shaped steel has first curved profile and second curved profile that is oppositely arranged; On any vertical section of said curve diagonal brace shaped steel, the circular arc tangential line of crooked arc sections lays respectively at the both sides of the line of centers of said vertical section on the outline line of said first curved profile, said second profile.
preferably, said curve diagonal brace shaped steel adopts " S " type shaped steel or circular arc type shaped steel.
are because the utilization of technique scheme; The present invention compared with prior art has advantage: be set to curve diagonal brace shaped steel through a plurality of diagonal brace shaped steel; And its crooked degree is set suitably makes it have enough intensity truss is carried out bracing reinforcement, when being set to this curve diagonal brace shaped steel welding on first shaped steel and second shaped steel on the staircase and girder, curve diagonal brace shaped steel absorbs the heat that welding produces and produces thermal stress; This thermal stress acts on and makes on the curve diagonal brace shaped steel that curve diagonal brace shaped steel is compressed; Its radius of curvature that is compressed the palintrope pars convoluta diminishes, after welding is accomplished, when the heat on the curve diagonal brace shaped steel slowly leaves; Produce shrink stress on the curve diagonal brace shaped steel and make curve diagonal brace shaped steel be elongated, its radius of curvature that is elongated the palintrope pars convoluta becomes big.Like this; In the process of welding; The high heat that welding produces and the thermal stress of expanding with heat and contract with cold that causes curve diagonal brace shaped steel absorb and discharge by the curve of curve diagonal brace shaped steel, have reduced the thermal deformation that staircase and girder produces in welding process effectively, have improved the production yield of truss.
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Description of drawings
Accompanying drawing 1 is the structural representation of existing staircase and girder;
Accompanying drawing 2 is the structural representation of the staircase and girder of embodiments of the invention one;
accompanying drawing 3 is the structural representation of the staircase and girder of embodiments of the invention two.
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The specific embodiment
Structure of the present invention is further set forth below in conjunction with accompanying drawing in
.
are referring to shown in Fig. 2-3; A kind of staircase and girder; Second shaped steel 2 that comprises first shaped steel 1, parallels with first shaped steel 1; And be fixedly installed on a plurality of columns 3 and a plurality of diagonal brace shaped steel between first shaped steel 1 and second shaped steel 2, and a plurality of columns 3 and first shaped steel 1, second shaped steel, 2 homogeneous phases are obliquely installed, and a plurality of diagonal brace shaped steel and first shaped steel 1, second shaped steel, 2 homogeneous phases are obliquely installed; A plurality of diagonal brace shaped steel and a plurality of column 3 distribute along the length direction of first shaped steel 1 and second shaped steel 2 separately; The both ends of a plurality of diagonal brace shaped steel are fixedly installed on first shaped steel 1 and second shaped steel 2 through welding respectively, and first shaped steel 1, second shaped steel 2 and a plurality of column 3 have been formed the basic steel beam structure of truss, and the setting of a plurality of diagonal brace shaped steel has then improved the stability and the intensity of this steel beam structure.A plurality of diagonal brace shaped steel are curve diagonal brace shaped steel 4; This curve diagonal brace shaped steel 4 has first curved profile 41 and second curved profile 42 that is oppositely arranged; On any vertical section of curve diagonal brace shaped steel 4; The circular arc tangential line of crooked arc sections lays respectively at the both sides of the line of centers of above-mentioned vertical section on the outline line of first curved profile 41 and second curved profile 42, plays the effect that truss reinforcement is supported thereby can make this curve diagonal brace shaped steel 4 have enough intensity like this.The line of centers here refers to one short in staggered two lines that link to each other of two-end-point up and down of the outline line of first curved profile 41 and second curved profile 42 on the cross section, and this cross section is equally divided into two symmetrical identical two parts along this line of centers.This curve diagonal brace shaped steel 4 forms via the prestress compacting, generally can adopt the pressing compacting to form.In embodiment one; Referring to shown in Figure 2, what a plurality of curve diagonal brace shaped steel 4 adopted is " S " type shaped steel, in embodiment two; Referring to shown in Figure 3; What a plurality of curve diagonal brace shaped steel 4 adopted is circular arc type shaped steel, and the line of centers that is its vertical section shown in the dotted line among Fig. 2-3, the circular arc tangential line of " S " type of both sides and the crooked arc sections of circular arc all are no more than this line of centers and lay respectively at the both sides of this line of centers.
are when curve diagonal brace shaped steel 4 being welded to 2 last times of first shaped steel 1, second shaped steel; Curve diagonal brace shaped steel 4 absorbs the heat of welding generation and makes its inner thermal stress that produces; This thermal stress makes curve diagonal brace shaped steel 4 between first shaped steel 1 and second shaped steel 2, be compressed, and the radius of curvature of curve diminishes on the curve diagonal brace shaped steel 4, and after welding is accomplished; When the heat on the curve diagonal brace shaped steel 4 slowly leaves; At this moment produce shrink stress on the curve diagonal brace shaped steel 4 and make curve diagonal brace shaped steel 4 between first shaped steel 1 and second shaped steel 2, be elongated, the radius of curvature of curve becomes big on the curve diagonal brace shaped steel 4, like this; In the process of welding; The high heat that welding produces and the thermal stress of expanding with heat and contract with cold that causes curve diagonal brace shaped steel 4 absorb and discharge by the curve of curve diagonal brace shaped steel 4, have reduced the thermal deformation that staircase and girder produces in welding process effectively, have improved the production yield of truss.
the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. staircase and girder; Comprise first shaped steel, and second shaped steel that parallels of said first shaped steel, be fixedly installed on a plurality of columns and a plurality of diagonal brace shaped steel between said first shaped steel and said second shaped steel; Said a plurality of column and said first shaped steel, the perpendicular setting of said second shaped steel; Said a plurality of diagonal brace shaped steel and said first shaped steel, said second shaped steel tilt setting; Said a plurality of column, said a plurality of diagonal brace shaped steel distribute along the length direction of said first shaped steel, said second shaped steel separately; The both ends of said a plurality of diagonal brace shaped steel are welded respectively and are fixedly installed on said first shaped steel, said second shaped steel; It is characterized in that: said a plurality of diagonal brace shaped steel are curve diagonal brace shaped steel; Said curve diagonal brace shaped steel has first curved profile and second curved profile that is oppositely arranged, and on any vertical section of said curve diagonal brace shaped steel, the circular arc tangential line of crooked arc sections lays respectively at the both sides of the line of centers of said vertical section on the outline line of said first curved profile, said second profile.
2. a kind of staircase and girder according to claim 1 is characterized in that: said curve diagonal brace shaped steel adopts " S " type shaped steel or circular arc type shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312168 CN102311037B (en) | 2011-10-14 | 2011-10-14 | Staircase truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312168 CN102311037B (en) | 2011-10-14 | 2011-10-14 | Staircase truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102311037A true CN102311037A (en) | 2012-01-11 |
| CN102311037B CN102311037B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110312168 Active CN102311037B (en) | 2011-10-14 | 2011-10-14 | Staircase truss |
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| Country | Link |
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| CN (1) | CN102311037B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001003A (en) * | 2014-11-28 | 2017-08-01 | 蒂森克虏伯电梯创新有限责任公司 | Supporting construction for transporting equipment |
| CN107207213A (en) * | 2014-11-28 | 2017-09-26 | 蒂森克虏伯电梯创新有限责任公司 | Supporting structure for conveying arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801738Y (en) * | 2005-06-06 | 2006-08-02 | 江苏康力电梯集团有限公司 | Truss of escalator |
| CN1915781A (en) * | 2006-09-05 | 2007-02-21 | 西子奥的斯电梯有限公司 | Truss of integral type stairway |
| CN200951921Y (en) * | 2006-09-19 | 2007-09-26 | 西子奥的斯电梯有限公司 | Staircase honing supporter |
| CN201574368U (en) * | 2010-01-19 | 2010-09-08 | 田国 | Stereoscopic type road bridge safety barrier |
| CN202272613U (en) * | 2011-10-14 | 2012-06-13 | 克莱斯电梯（中国）有限公司 | Escalator truss |
-
2011
- 2011-10-14 CN CN 201110312168 patent/CN102311037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801738Y (en) * | 2005-06-06 | 2006-08-02 | 江苏康力电梯集团有限公司 | Truss of escalator |
| CN1915781A (en) * | 2006-09-05 | 2007-02-21 | 西子奥的斯电梯有限公司 | Truss of integral type stairway |
| CN200951921Y (en) * | 2006-09-19 | 2007-09-26 | 西子奥的斯电梯有限公司 | Staircase honing supporter |
| CN201574368U (en) * | 2010-01-19 | 2010-09-08 | 田国 | Stereoscopic type road bridge safety barrier |
| CN202272613U (en) * | 2011-10-14 | 2012-06-13 | 克莱斯电梯（中国）有限公司 | Escalator truss |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001003A (en) * | 2014-11-28 | 2017-08-01 | 蒂森克虏伯电梯创新有限责任公司 | Supporting construction for transporting equipment |
| CN107207213A (en) * | 2014-11-28 | 2017-09-26 | 蒂森克虏伯电梯创新有限责任公司 | Supporting structure for conveying arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102311037B (en) | 2013-04-24 |
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