CN103979436A - Connection structure of web members and main chord member of tower-crane standard knot - Google Patents
Connection structure of web members and main chord member of tower-crane standard knot Download PDFInfo
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- CN103979436A CN103979436A CN201410087164.2A CN201410087164A CN103979436A CN 103979436 A CN103979436 A CN 103979436A CN 201410087164 A CN201410087164 A CN 201410087164A CN 103979436 A CN103979436 A CN 103979436A
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- main chord
- web
- chord member
- web member
- connection structure
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Abstract
A disclosed connection structure of web members and a main chord member of a tower-crane standard knot comprises an inclined web member (1), the main chord member (2), a transverse web member (3) and a support plate (4); the main chord member employs H-shaped steel; the shape and the dimension of the support plate are matched with the shape and the dimension of a space enclosed by main-chord-member cross-section flanges and a web plate; the support plate is perpendicular to the web plate of the main chord member and is fixedly connected with the web plate and the flanges of the main chord member in a welding manner; the transverse web member is in butt joint with the support plate and the flanges of the main chord member; and the inclined web member is in fixed lap joint with the flanges of the main chord member in a welding manner, and is in fixed butt joint with the support plate in a welding manner. The bearing transmission path of the connection structure of web members and main chord member of tower-crane standard knot is direct, the bearing state of the main chord member is relatively ideal, and the connection structure is stable and reliable; the upper and lower flanges and the web plate of the main chord member form an integrate in a local scope, so that a U-shaped semi-closed structure is formed, therefore the local strength of the main chord member is reinforced, and the weld-seam cracking risk is reduced.
Description
Technical field
The present invention relates to a kind of web member and main chord connection structure, specifically a kind of tower machine standard knot web member and main chord connection structure, belong to tower machine mechanical field.
Background technology
Along with scientific and technical development, building operation is more and more higher to the performance requriements of tower crane, tower machine standard knot bears larger load in the tower crane tool equipment such as hoisting crane, tower wagon, elevator, play an important role to supporting heavily, a good standard knot can not only improve the stability of these tower crane tools, and has promoted the safety performance of complete machine.
In tower machine standard knot structure, welded structure is occupied the highest ratio, directly affects the use safety of tower machine standard knot, and therefore welding process is the emphasis of tower machine standard knot structure manufacturing process.
In at present conventional tower machine standard knot structure, main chord of standard section adopts the shaped steel such as steel pipe, angle steel, H shaped steel more, standard knot web member adopts angle steel or steel pipe more, the main chord of the tower-body standard section of large-scale arm tower crane adopts the pattern of H shaped steel more, standard knot web member adopts angle steel or steel pipe, between web member and main chord, interconnect employing welding manner, at present common Type of Welding as shown in Figure 1: the edge of a wing of horizontal web member 3 and main chord 2 directly overlaps welding, and diagonal web member 1 docks welding with edge of a wing overlap joint and the horizontal web member 3 of main chord 2 respectively again.
The welded structure blanking processing of this version is relatively simple, applies more generally, but has following defect:
1. after part power being passed to when diagonal web member 1 is stressed to horizontal web member 3, be delivered on main chord 2, the transfer route of power is direct not again, and main chord 2 strained conditiones are undesirable;
2. a side wing edge of horizontal web member 3 and main chord 2 and web welding (as shown in Figure 2), local structure is Open architecture, local strength relatively a little less than, there is the hidden danger of weld cracking.
Summary of the invention
For the problems referred to above, the invention provides a kind of tower machine standard knot web member and main chord connection structure, simple in structure, reasonable stress, safe and reliable, and can ensure the effectively stable of connection structure entirety.
For achieving the above object, this tower machine standard knot web member and main chord connection structure comprise diagonal web member, main chord, horizontal web member and stay bearing plate;
Main chord adopts H shaped steel;
The shape and size of stay bearing plate coordinate with the shape and size in the space that the edge of a wing, main chord cross section and web surround, and stay bearing plate is welded and fixed perpendicular to main chord web and with main chord web, the edge of a wing;
The top of horizontal web member is docked and is welded and fixed with the edge of a wing of stay bearing plate, main chord;
The top of diagonal web member is welded and fixed with the edge of a wing of main chord overlap joint, its top is against on stay bearing plate and with stay bearing plate and docks and be welded and fixed.
Scheme as a further improvement on the present invention, diagonal web member adopts angle steel.
Scheme as a further improvement on the present invention, horizontal web member adopts angle steel.
Compared with prior art, this tower machine standard knot web member and main chord connection structure due to adopt horizontal web member and diagonal web member all directly and main chord dock and overlap welding, stressed transfer route is direct, therefore makes main chord strained condition more desirable, and connection structure is reliable and stable; Owing to adopting stay bearing plate and main chord web, the edge of a wing to be welded and fixed, in subrange, by the upper lower flange of main chord and web composition one, form the semi-closed structure of " U " shape, therefore make main chord local strength be strengthened, reduce the risk of weld cracking.
Brief description of the drawings
Fig. 1 is the structural representation of prior art tower machine standard knot web member and main chord connection structure;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the birds-eye view of Fig. 3.
In figure: 1, diagonal web member, 2, main chord, 3, horizontal web member, 4, stay bearing plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 3, Figure 4, this tower machine standard knot web member and main chord connection structure comprise diagonal web member 1, main chord 2, horizontal web member 3 and stay bearing plate 4;
Main chord 2 adopts H shaped steel, the H shaped steel that also can adopt Plate Welding to form;
The shape and size of stay bearing plate 4 coordinate with the shape and size in the space that main chord 2 edges of a wing, cross section and web surround, and stay bearing plate 4 is welded and fixed perpendicular to main chord 2 webs and with main chord 2 webs, the edge of a wing, form a fixing bearing surface;
The top of horizontal web member 3 is docked and is welded and fixed with the edge of a wing of stay bearing plate 4, main chord 2, in order to connect each main chord 2, and controls the distance between main chord 2, ensures production standard width;
The top of diagonal web member 1 is welded and fixed with the edge of a wing overlap joint of main chord 2, its top is against on stay bearing plate 4 and with stay bearing plate 4 and docks and be welded and fixed, in order to connect, to support each main chord 2.
In order to be convenient to welding production when proof strength, scheme as a further improvement on the present invention, diagonal web member 1 adopts angle steel.
In order to be convenient to welding production when proof strength, scheme as a further improvement on the present invention, horizontal web member 3 adopts angle steel.
In this connection structure, a first stay bearing plate 4 of welding in the H of main chord of standard section 2 shaped steel cross-sectional plane, this stay bearing plate 4 is integrally welded with upper lower flange and the web of H shaped steel, the local semi-closed structure that forms " U " shape, make stay bearing plate 4 become as a whole with H shaped steel, form a fixing bearing surface; Horizontal web member 3 angle steel dock welding with the edge of a wing and the stay bearing plate 4 of H shaped steel, make horizontal web member 3 connect each main chord 2, and control the distance between main chord 2, ensure the width of production standard; Finally the both ends of diagonal web member 1 angle steel are welded and docked welding with stay bearing plate 4 with the H section steel flange overlap joint of main chord 2 respectively, make diagonal web member 1 connect, support each main chord 2, thereby reach the object that main chord local strength strengthens, reduces weld cracking risk.
This tower machine standard knot web member and main chord connection structure due to adopt horizontal web member and diagonal web member all directly and main chord dock and overlap welding, stressed transfer route is direct, therefore makes main chord strained condition more desirable, connection structure is reliable and stable; Owing to adopting stay bearing plate and main chord web, the edge of a wing to be welded and fixed, in subrange, by the upper lower flange of main chord and web composition one, form the semi-closed structure of " U " shape, therefore make main chord local strength be strengthened, reduce the risk of weld cracking.
Claims (3)
1. a tower machine standard knot web member and main chord connection structure, comprise diagonal web member (1), main chord (2) and horizontal web member (3), main chord (2) adopts H shaped steel, it is characterized in that, also comprise stay bearing plate (4), the shape and size of described stay bearing plate (4) coordinate with the shape and size in the space that main chord (2) edge of a wing, cross section and web surround, and stay bearing plate (4) is welded and fixed perpendicular to main chord (2) web and with main chord (2) web, the edge of a wing; The top of described horizontal web member (3) is docked and is welded and fixed with the edge of a wing of stay bearing plate (4), main chord (2); The top of described diagonal web member (1) is welded and fixed with the edge of a wing of main chord (2) overlap joint, its top is against stay bearing plate (4) above and docks and be welded and fixed with stay bearing plate (4).
2. tower machine standard knot web member according to claim 1 and main chord connection structure, is characterized in that, described diagonal web member (1) adopts angle steel.
3. tower machine standard knot web member according to claim 2 and main chord connection structure, is characterized in that, described horizontal web member (3) adopts angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087164.2A CN103979436A (en) | 2014-03-11 | 2014-03-11 | Connection structure of web members and main chord member of tower-crane standard knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087164.2A CN103979436A (en) | 2014-03-11 | 2014-03-11 | Connection structure of web members and main chord member of tower-crane standard knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103979436A true CN103979436A (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410087164.2A Pending CN103979436A (en) | 2014-03-11 | 2014-03-11 | Connection structure of web members and main chord member of tower-crane standard knot |
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| CN (1) | CN103979436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495030A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of main string standard knot of double angle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201512372U (en) * | 2009-10-19 | 2010-06-23 | 河南省中原矿山设备有限公司 | Web member on boom crane |
| CN203199917U (en) * | 2013-01-17 | 2013-09-18 | 杭州科曼萨杰牌建设机械有限公司 | Double angle standard knot structure |
| CN203767883U (en) * | 2014-03-11 | 2014-08-13 | 徐州建机工程机械有限公司 | Web member and main chord member connecting structure of tower crane standard section |
-
2014
- 2014-03-11 CN CN201410087164.2A patent/CN103979436A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201512372U (en) * | 2009-10-19 | 2010-06-23 | 河南省中原矿山设备有限公司 | Web member on boom crane |
| CN203199917U (en) * | 2013-01-17 | 2013-09-18 | 杭州科曼萨杰牌建设机械有限公司 | Double angle standard knot structure |
| CN203767883U (en) * | 2014-03-11 | 2014-08-13 | 徐州建机工程机械有限公司 | Web member and main chord member connecting structure of tower crane standard section |
Non-Patent Citations (2)
| Title |
|---|
| 杜佐龙，郭锋效，张保国，王杰: "H型钢装配式塔式起重机基础的设计与施工应用", 《第四届全国钢结构工程技术交流会论文集》 * |
| 盛陈: "起重机塔身标准节焊接变形分析及控制方法", 《工程机械与维修》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495030A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of main string standard knot of double angle |
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Application publication date: 20140813 |
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| RJ01 | Rejection of invention patent application after publication |