CN201901527U - Extraweight-tonnage riveting type crane beam reinforcing device - Google Patents

Extraweight-tonnage riveting type crane beam reinforcing device Download PDF

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Publication number
CN201901527U
CN201901527U CN2010206555044U CN201020655504U CN201901527U CN 201901527 U CN201901527 U CN 201901527U CN 2010206555044 U CN2010206555044 U CN 2010206555044U CN 201020655504 U CN201020655504 U CN 201020655504U CN 201901527 U CN201901527 U CN 201901527U
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CN
China
Prior art keywords
crane beam
type crane
riveting type
tonnage
reinforcing device
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Expired - Lifetime
Application number
CN2010206555044U
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Chinese (zh)
Inventor
晏金炜
朱淳
宣伟慧
汪崖
储西让
方大培
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Shanghai Institute of Electromechanical Engineering
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Shanghai Institute of Electromechanical Engineering
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Priority to CN2010206555044U priority Critical patent/CN201901527U/en
Application granted granted Critical
Publication of CN201901527U publication Critical patent/CN201901527U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to the field of crane beam reinforcing devices, in particular to a riveting type crane beam reinforcing device. The riveting type crane beam reinforcing device comprises a pair of flange girth widened plates, longitudinal stiffening ribs and a reinforcing web plate, wherein the pair of flange girth widened plates are respectively performed reinforcing welding on the same side of the upper flange girth and the lower flange girth at the middle of a crane beam, the reinforcing web plate is welded and fixed on one side of a web plate at the end part of the crane beam, and the pairs of longitudinal stiffening ribs are symmetrically welded and fixed on two sides of the middle part of the web plate. The riveting type crane beam reinforcing device can efficiently controls the damage influence of weld reinforcement after the power of riveting type crane beam is improved, so that an original riveting type crane beam can be used sustainably, which agrees with the operating requirements of an increasingly enlarged extraweight-tonnage crane and avoids a large amount of consumption of labor power, financial resources, material resources required by the reconstruction of original factory buildings; and meanwhile, the reconstruction periods of the factory buildings can also be greatly speeded, which conforms to the low carbon economical method advocated nowadays, so that the extraweight-tonnage riveting type crane beam reinforcing device can bring about huge economic and social benefits under the condition of popularization.

Description

Overweight tonnage riveted type crane girder bracing means
Technical field
The utility model relates to the crane girder field of reinforcement, relates in particular to a kind of riveted type crane girder bracing means.
Background technology
China exists a large amount of riveted type crane girders in 20th century industrial premises built to the eighties of the fifties, continuous lifting along with China's heavy industry energy level, crane lifting energy level demand is also increasing, if can make it be able to sustainable use by reinforcing old crane girder lifting carrying energy level, then avoided former factory building to rebuild required a large amount of person property that expends, can accelerate greatly the old factory rehabilitation cycle again simultaneously, meet the mode of the low-carbon economy of advocating now.But the riveted type crane girder is different from the welded type crane girder, exists a large amount of rivets and connects, and must keep under strict control to the damage of rivet in reinforcing process, avoids rivet failure, and also have the steel fatigue problem under overweight tonnage crane load.
Thick forming pieced together by the riveted joint of two block plates in the last lower flange of overweight tonnage riveted type crane girder, edge of a wing upper and lower surface all has the rivet body of dashing forward, the crane girder web is also riveted whole by angle steel and flange plate, and used decades mostly, if when this kind riveted joint crane girder is carried out reinforcement of weld, the heat that welding produces very easily makes former loosing of rivet lose efficacy, weaken the intensity and the bearing capacity of former crane girder on the contrary, cause that crane girder destroys, and for the crane that moves overweight tonnage heavy-duty, the strength at repeated alternation of crane girder also is to need to consider, therefore must take safe safe method to reinforce.
Disclose a kind of ruggedized construction of steel crane beam in the existing Chinese patent 200820302851.1, in this structure, used the diagonal brace pylon on the factory building steel column steel crane beam, to improve the structural strength of crane girder.The huge shearing that the crane load of overweight tonnage produces in this method will act directly on factory building columns half waist position, and is very unfavorable to former factory building columns, even the factory building columns that needs reinforcement, and increased the reinforcing amount.If shore is connected the bottom of factory building columns, basis to former factory building can produce huge horizontal shear, the foundation bearing capacity deficiency that may cause former factory building columns, and the foundation of reinforcing old factory building also is a relatively thing of difficulty, at last for the riveted type crane girder, the welding of shore and former crane girder lower flange causes the plate distortion of edge of a wing lower floor easily, it is stressed to influence rivet, and,, method reinforces so being not suitable for the riveted type crane girder in case impact and to adopt remedial measures again.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of overweight tonnage riveted type crane girder bracing means, by adding the weldering plate at each position of crane girder, assurance adds the globality on the double-deck edge of a wing of weldering plate and former riveted joint, makes to add weldering plate and former crane girder co-operation and play booster action.
The utility model is achieved in that a kind of overweight tonnage riveted type crane girder bracing means, comprise that a pair of edge of a wing adds wide plate, longitudinal stiffener and reinforcement web, the described a pair of edge of a wing adds phase the same side that wide plate is reinforced the upper and lower edge of a wing that is welded on the crane girder middle part respectively, described reinforcement web is weldingly fixed on web one side of crane beam end portion, and described a pair of longitudinal stiffener is symmetrically welded and is fixed on both sides, web middle part.
The utility model is overweight tonnage riveted type crane girder bracing means, by adding the weldering plate at each position of crane girder, assurance adds the globality on the weldering plate and the double-deck edge of a wing of former riveted joint, make and to add weldering plate and former crane girder co-operation and play booster action, can effectively control the riveted type crane girder and carry the damage influence of energy back reinforcement of weld, make original riveted type crane girder be able to sustainable use, the operating needs that adapts to the overweight tonnage crane that constantly increases, avoided former factory building to rebuild required a large amount of person property that expends, can accelerate greatly the old factory rehabilitation cycle again simultaneously, meet the mode of the low-carbon economy of advocating now.The present invention is safe and reliable, operation feasible, quality controllable, little to the influence of Workshop Production, if promoted, will produce huge economic benefit and social benefit.
Description of drawings
Fig. 1 is the schematic cross-section at crane girder middle part in the overweight tonnage riveted type of the utility model crane girder bracing means;
Fig. 2 is the schematic cross-section of crane beam end portion in the overweight tonnage riveted type of the utility model crane girder bracing means;
Among the figure: 1 edge of a wing, 2 edges of a wing add wide plate, 3 longitudinal stiffeners, 4 reinforcement webs, 5 webs.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
As depicted in figs. 1 and 2, a kind of overweight tonnage riveted type crane girder bracing means comprises that a pair of edge of a wing adds wide plate 2, longitudinal stiffener 3 and reinforcement web 4; The described a pair of edge of a wing adds phase the same side that wide plate 2 is reinforced the upper and lower edge of a wing 1 that is welded on the crane girder middle part respectively, to increase the intensity on the upper and lower edge of a wing 1; Described reinforcement web 4 is weldingly fixed on web 5 one sides of crane beam end portion, to improve the shear stress strength of web 5; Described a pair of longitudinal stiffener 3 is symmetrically welded and is fixed on both sides, web 5 middle part, to improve the local stability of web 5.More than after three positions add the weldering plate, the amount of deflection of former crane girder and strength at repeated alternation have also obtained effective reinforcement.
When welding with upper plate, grind the slit of 3mm earlier in the weld, polish behind the full weld then.
During concrete the application, the heavy factory building in Shanghai is established in nineteen sixty, and main span span 30m, post are apart from 12m, and crane is that the 320T forging is hung, and adopts the riveted type steel crane beam, the high 20m of crane rail.2009, because of forging and pressing the production demand of maximum 450 tons of workpiece, intend reaching 600 tons at the high newly-increased hoisting weight of main span 20m rail, integrate and forge and the electronic traverse crane of three beam double trolley that transports, the crane tonnage is close to double on former crane basis.Therefore needing using nearly 50 years former factory building mainly is that the riveted type crane girder carries out strengthening reconstruction.These 600 tons of cranes are the electronic traverse cranies of three beam double trolley, and crane weighs 720 tons certainly, the A6 heavy-duty, and the every sidecar wheel of crane reaches 20, and the nearly 23m of beam overall belongs to domestic rarer overweight tonnage crane type.
Behind device reinforcement of weld of the present utility model, it is as shown in table 1 below to check data, and every index all is significantly improved:

Claims (1)

1. overweight tonnage riveted type crane girder bracing means, it is characterized in that: comprise that a pair of edge of a wing adds wide plate (2), longitudinal stiffener (3) and reinforcement web (4), the described a pair of edge of a wing adds phase the same side that wide plate (2) is reinforced the upper and lower edge of a wing (1) that is welded on the crane girder middle part respectively, described reinforcement web (4) is weldingly fixed on web (5) one sides of crane beam end portion, and described a pair of longitudinal stiffener (3) is symmetrically welded and is fixed on both sides, web (5) middle part.
CN2010206555044U 2010-12-13 2010-12-13 Extraweight-tonnage riveting type crane beam reinforcing device Expired - Lifetime CN201901527U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206555044U CN201901527U (en) 2010-12-13 2010-12-13 Extraweight-tonnage riveting type crane beam reinforcing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206555044U CN201901527U (en) 2010-12-13 2010-12-13 Extraweight-tonnage riveting type crane beam reinforcing device

Publications (1)

Publication Number Publication Date
CN201901527U true CN201901527U (en) 2011-07-20

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CN2010206555044U Expired - Lifetime CN201901527U (en) 2010-12-13 2010-12-13 Extraweight-tonnage riveting type crane beam reinforcing device

Country Status (1)

Country Link
CN (1) CN201901527U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103111789A (en) * 2013-02-01 2013-05-22 内蒙古科技大学 Steel crane beam fatigue and wreck reinforcing method
CN105883605A (en) * 2016-06-23 2016-08-24 合肥市神雕起重机械有限公司 Web reinforcing device for crane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103111789A (en) * 2013-02-01 2013-05-22 内蒙古科技大学 Steel crane beam fatigue and wreck reinforcing method
CN103111789B (en) * 2013-02-01 2016-01-20 内蒙古科技大学 Steel crane beam fatigue rupture reinforcement means
CN105883605A (en) * 2016-06-23 2016-08-24 合肥市神雕起重机械有限公司 Web reinforcing device for crane

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Granted publication date: 20110720

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