CN102127898A - Device and method for turning over steel truss girder member - Google Patents
Device and method for turning over steel truss girder member Download PDFInfo
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- CN102127898A CN102127898A CN2010105993455A CN201010599345A CN102127898A CN 102127898 A CN102127898 A CN 102127898A CN 2010105993455 A CN2010105993455 A CN 2010105993455A CN 201010599345 A CN201010599345 A CN 201010599345A CN 102127898 A CN102127898 A CN 102127898A
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- circular arc
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Abstract
The invention provides a device for turning over a steel truss girder member. The device comprises two turnover pedestals, a turnover frame and two traction devices. The device is characterized in that the turnover frame and the two traction devices are arranged between the two turnover pedestals; the turnover frame is provided with a circular arc shaped girder; three separate traction lugs are arranged outside the circular arc shaped girder; a hoop for fixing the steel truss girder member is arranged inside the circular arc shaped girder; and the two traction devices are respectively arranged at the two sides of the horizontal diameter of the circular arc shaped girder and are connected with different traction lugs via steel wire ropes. A method for turning over the steel truss girder member based on the device is characterized by tightening one steel wire rope of one traction device and loosening the other steel wire rope of the other traction device to axially turn over the turnover frame at an angle of 90 degrees every time and turning over the turnover frame twice to realize 180-degree turnover. The device and the method have the following beneficial effects: the device is safe and convenient to operate and has stronger turnover controllability; the turned over steel truss girder member is free from wear and the connecting plates are free from deformation; the device has high construction efficiency and low labor intensity; and the construction cost can be reduced and the practicability is greatly improved.
Description
Technical field
The present invention relates to the realm of building construction, specifically is a kind of steel girder member bar turning device and turn-over method.
Background technology
The construction of current LONG-SPAN RAILWAY bridge is more and more, and it uses steel truss structure mostly, and girder steel main truss rod member has the characteristics that weight is big, the node shape is peculiar.Because of making and long-distance transportation needs, the special-shaped node of steel girder member bar generally up, and for its installment state of upper cord member be special-shaped node down, so need will steel girder member bar turning 180 degree after capable again assembly unit.
In the prior art, girder steel stands up the following two kinds of methods that mainly contain:
Method one is wound in the steel girder member bar position of centre of gravity with wire rope on the sand pit, adopt the loop wheel machine boom hoist cable, utilizes eccentric center principle to realize that girder steel stands up, and other adopts a loop wheel machine auxiliary, with plan safety.The method equipment has high input, the place area occupied is big, and operation is difficulty comparatively, and efficiency of construction is low, and steel girder member bar wearing and tearing more greatly, easily cause the junction plate distortion, especially stands up poor controllability, and construction safety is had considerable influence.
Method two adopts the equipment for supporting patient with burn of band upset wheel disc to carry out member bar turning.It improves a lot than method one efficiency of construction, working security and economy, but this equipment for supporting patient with burn structure is comparatively complicated, thereby makes the steel work manufacturing procedure comparatively loaded down with trivial details; The assembly node of this equipment for supporting patient with burn is more, the closed of claimed apparatus is better, and processing, the installation accuracy of device are had relatively high expectations, and ease-to-operate, practicality still have weak point.So the method practicality is relatively poor, is not suitable for the job site and uses on a large scale; And stand up that rod member quantity is more, when the rod member substance is big, its work efficiency is still low, labour intensity is still bigger.
Summary of the invention
At the defective that exists in the prior art, the object of the present invention is to provide a kind of steel girder member bar turning device and turn-over method, device processing is simple, easy-to-operate, it is stronger to stand up controllability, and the steel girder member bar after standing up does not have wearing and tearing, junction plate does not have distortion, and construction efficiency height, labour intensity are low, can reduce construction cost, practicality strengthens greatly.
For reaching above purpose, the technical scheme that the present invention takes is: a kind of steel girder member bar turning device, comprise that two stand up pedestal, one stands up frame, and two groups of draw-gears that connect the two, describedly stand up frame and two draw-gears all stand up between the pedestal two, the described frame that stands up has the circular arc girder, its outside is provided with the traction ear seat of three separation, the inboard is provided with the fixing anchor ear of steel girder member bar, two draw-gears lay respectively at the horizontal diameter both sides of circular arc girder, it connects different traction ear seats by wire rope, and draw-gear to drive the direction of standing up the frame axial deflection identical with application of force direction.
On the basis of technique scheme, described each draw-gear includes a hoist engine, and connects two and stand up the support of pedestal and be positioned at assembly pulley on the support, described hoist engine links to each other with assembly pulley by wire rope, and connects the described traction ear seat that stands up frame by assembly pulley.
On the basis of technique scheme, described two stand up pedestal is arranged in parallel, and described support two ends vertically embed each respectively and stand up in the pedestal.
On the basis of technique scheme, described assembly pulley comprises the fixed pulley that links to each other with described support by an otic placode, and the movable pulley that links to each other with this fixed pulley by wire rope.
On the basis of technique scheme, when the steel wire of a draw-gear tightened up, the steel wire of another draw-gear loosened, and describedly stood up the direction deflection that frame tightens up to steel wire.
On the basis of technique scheme, described wherein two traction ear seats lay respectively at the perpendicular diameter two ends of circular arc girder, and another traction ear seat is positioned at horizontal diameter one end of circular arc girder.
On the basis of technique scheme, described circular arc girder connects anchor ear by steel truss, and described anchor ear is four end to end rod members, and wherein the two-phase link member is welded in steel truss, articulate between the two-phase link member in addition, and by bolt and other two rod member bolts.
Simultaneously, the present invention take a kind of steel girder member bar turning way, comprise following several steps:
(1) steel girder member bar is set up in two and stands up between the pedestal, and with anchor ear with its with stand up frame and interfix;
(2) determine the traction ear seat that the steel wire of each draw-gear will connect, it is connected respectively;
(3) utilize hoist engine to tighten up the wherein steel wire of a draw-gear, loosen the steel wire of another draw-gear, drive 90 ° of steel girder member bar axial deflection until the described frame that stands up;
(4) adjust the traction ear seat that the steel wire of each draw-gear will connect, two draw-gears continue one to be received one and puts, and order is stood up frame and driven steel girder member bar and axially continue 90 ° of deflections, promptly finishes the upset of 180 ° of steel girder member bars.
On the basis of technique scheme, in step (1) before, two positions of standing up between the pedestal are set according to the size of steel girder member bar, stand up on the pedestal pad two simultaneously and establish backing plate.
On the basis of technique scheme, in the described step (2), the draw-gear of contiguous anchor ear one side links to each other with the traction ear seat of circular arc girder horizontal diameter one end, and another draw-gear links to each other with the top traction ear seat of circular arc girder perpendicular diameter.
Beneficial effect of the present invention is: steel girder member bar turning device of the present invention, its processing is simple, cost is lower, controlled stronger, in conjunction with the turn-over method based on said apparatus, steel girder member bar is stressed rationally, and is easy and safe to operate, have rod member simultaneously and do not have the advantage that wearing and tearing, junction plate do not have distortion, be particularly useful for standing up of the particularly special-shaped node of various rod members, steel girder member bar that weight is big.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention steel girder member bar turning device;
Fig. 2 is that the A-A cross section cooperates schematic diagram with steel girder member bar among Fig. 1;
Fig. 3 is for standing up the structure chart of frame among Fig. 1;
Fig. 4 is the schematic diagram that cooperates that stands up pedestal and support, otic placode.
Reference numeral: stand up pedestal 1, backing plate 11 stands up frame 2, circular arc girder 21, traction ear seat 22 (22 '), anchor ear 23, steel truss 24, rod member 25 (25 '), bolt 26, draw-gear 3, hoist engine 31, support 32, wire rope 33, fixed pulley 34, movable pulley 35, otic placode 36, steel girder member bar 4.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention/mode is described in further detail.
As shown in Figure 1 and Figure 4, steel girder member bar turning device of the present invention comprises that two stand up two groups of draw-gears 3 that pedestal 1, stands up frame 2 and connects the two, described two stand up pedestal 1 is arranged in parallel, stand up frame 2 and be positioned at two centres of standing up pedestal 1, two groups of draw-gears 3 connect two respectively and stand up pedestal, are positioned at the both sides of standing up frame 2 simultaneously.
As shown in Figure 3, the described frame 2 that stands up comprises circular arc girder 21, its outside is provided with three traction ear seats that are separated from each other setting, and wherein two traction ear seats 22 lay respectively at the perpendicular diameter two ends of circular arc girder 21, another traction ear seat 22 ' be positioned at horizontal diameter one end of circular arc girder 21.Described circular arc girder 21 inside are provided with an anchor ear 23 that is used for fixing steel girder member bar 4, connect by some steel trusss 24 between anchor ear 23 and the circular arc girder 21.Described anchor ear 23 is four end to end rod members, and wherein two-phase link member 25 is welded in steel truss 24, in addition two-phase link member 25 ' between articulate mutually, and by two rod members of bolt 26 and other 25 bolts respectively.
As Fig. 1, Fig. 2 and shown in Figure 4, described two groups of draw-gears 3 lay respectively at the horizontal diameter both sides of circular arc girder 21, each group draw-gear 3 includes hoist engine 31, support 32, assembly pulley and wire rope 33, described support 32 two ends vertically embed each respectively and stand up in the pedestal 1, described assembly pulley comprises the fixed pulley 34 that is positioned on the support 32 and by the coupled movable pulley 35 of wire rope 33, movable pulley 35 by described wire rope 33 and traction ear seat 22 with draw ear seat 22 ' be connected, described hoist engine 31 links to each other with fixed pulley 34 by wire rope 33, and also is provided with an otic placode 36 between described fixed pulley 34 and the support 32.
As depicted in figs. 1 and 2, during construction, at first according to steel girder member bar 4 perimeter of sections of required rotation, length that the rod member Design of length is stood up pedestal 1 and the spacing of two pedestals 1, reinforce the ground that stands up pedestal 1 then, prevent to stand up pedestal 1 and produce differential settlement, standing up laying backing plate 11 on the pedestal 1, hang steel girder member bar 4 to rational position.Implement according to following steps then:
(1) steel girder member bar 4 is located at two by crane carriage and stands up between the pedestal 1,,, steel girder member bar 4 is fixed on stands up on the frame 2 thus by two rod members of bolt 26 and other 25 bolts respectively with behind the two-phase link member 25 of anchor ear 23 ' walk around steel girder member bar 4.
(2) determine the traction ear seat that the wire rope 33 of each draw-gear 3 will connect, as the direction of rotation in the present embodiment is the C direction, then will be close to the traction ear seat 22 of wire rope 33 and circular arc girder 21 horizontal diameter one end on the movable pulley 35 of anchor ear 23 1 sides ' link to each other, wire rope 33 links to each other with the traction ear seat 22 on the top of circular arc girder 21 perpendicular diameter on the movable pulley 35 of opposite side.
(3) utilize with the hoist engine 31 of that side of traction ear seat 22 ' link to each other and tighten up wire rope 33, drive movable pulley 35 by fixed pulley 34, pulling circular arc girder 21 drives steel girder member bar 4 side direction and overturns 90 ° axially to 90 ° of C direction deflections; That side hoist engine 31 that links to each other with the traction ear seat 22 on top simultaneously loosens wire rope 33, by the fixed pulley 34 drive movable pulley 35 of this side, to guarantee that standing up operation increases controllability, improves security performance.
(4) adjust the traction ear seat that the wire rope 33 of every side-lining device 3 is connected, in the present embodiment, circular arc girder 21 is after the deflection of C direction, its traction ear seat 22 ' above being positioned at, just now do not have the traction ear seat that connects 22 to forward intermediate altitude to, will link to each other with this traction ear seat 22 with the wire rope of traction ear seat 22 ' be connected described in the step (2) by the lower end; Simultaneously the wire rope 33 of opposite side is connected to traction ear seat 22 ', that side-lining device 3 that tightens up wire rope 33 in the step (3) still shrinks, another draw-gear 3 continues to loosen, make circular arc girder 21 drive steel girder member bar 4 and axially continue 90 ° of deflections, promptly finish the upset of 180 ° of steel girder member bars.
The present invention not only is confined to above-mentioned preferred forms, and no matter those skilled in the art make any variation under enlightenment of the present invention, and every have identical with a present invention or akin technical scheme, all within its protection domain.
Claims (10)
1. steel girder member bar turning device, comprise that two stand up two groups of draw-gears that pedestal, stands up frame and connects the two, it is characterized in that: describedly stand up frame and two draw-gears all stand up between the pedestal two, the described frame that stands up has the circular arc girder, its outside is provided with the traction ear seat of three separation, the inboard is provided with the fixing anchor ear of steel girder member bar, two draw-gears lay respectively at the horizontal diameter both sides of circular arc girder, it connects different traction ear seats by wire rope, and draw-gear to drive the direction of standing up the frame axial deflection identical with application of force direction.
2. steel girder member bar turning device as claimed in claim 1, it is characterized in that: described each draw-gear includes a hoist engine, and connects two and stand up the support of pedestal and be positioned at assembly pulley on the support, described hoist engine links to each other with assembly pulley by wire rope, and connects the described traction ear seat that stands up frame by assembly pulley.
3. steel girder member bar turning device as claimed in claim 2 is characterized in that: described two stand up pedestal is arranged in parallel, and described support two ends vertically embed each respectively and stand up in the pedestal.
4. steel girder member bar turning device as claimed in claim 3 is characterized in that: described assembly pulley comprises the fixed pulley that links to each other with described support by an otic placode, and the movable pulley that links to each other with this fixed pulley by wire rope.
5. as claim 1 or 4 described steel girder member bar turning devices, it is characterized in that: when the steel wire of a draw-gear tightened up, the steel wire of another draw-gear loosened, and describedly stood up the direction deflection that frame tightens up to steel wire.
6. steel girder member bar turning device as claimed in claim 1 is characterized in that: described wherein two traction ear seats lay respectively at the perpendicular diameter two ends of circular arc girder, and another traction ear seat is positioned at horizontal diameter one end of circular arc girder.
7. steel girder member bar turning device as claimed in claim 1, it is characterized in that: described circular arc girder connects anchor ear by steel truss, described anchor ear is four end to end rod members, wherein the two-phase link member is welded in steel truss, articulate between the two-phase link member in addition, and by bolt and other two rod member bolts.
8. the steel girder member bar turning way based on claim 1 device is characterized in that, comprises following several steps:
(1) steel girder member bar is set up in two and stands up between the pedestal, and with anchor ear with its with stand up frame and interfix;
(2) determine the traction ear seat that the steel wire of each draw-gear will connect, it is connected respectively;
(3) utilize hoist engine to tighten up the wherein steel wire of a draw-gear, loosen the steel wire of another draw-gear, drive 90 ° of steel girder member bar axial deflection until the described frame that stands up;
(4) adjust the traction ear seat that the steel wire of each draw-gear will connect, two draw-gears continue one to be received one and puts, and order is stood up frame and driven steel girder member bar and axially continue 90 ° of deflections, promptly finishes the upset of 180 ° of steel girder member bars.
9. steel girder member bar turning way based on claim 8 device is characterized in that: in step (1) before, according to the size of steel girder member bar two positions of standing up between the pedestal are set, stand up on the pedestal pad two simultaneously and establish backing plate.
10. steel girder member bar turning way based on claim 8 device, it is characterized in that: in the described step (2), the draw-gear of contiguous anchor ear one side links to each other with the traction ear seat of circular arc girder horizontal diameter one end, and another draw-gear links to each other with the top of circular arc girder perpendicular diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105993455A CN102127898A (en) | 2010-12-22 | 2010-12-22 | Device and method for turning over steel truss girder member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105993455A CN102127898A (en) | 2010-12-22 | 2010-12-22 | Device and method for turning over steel truss girder member |
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| Publication Number | Publication Date |
|---|---|
| CN102127898A true CN102127898A (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105993455A Pending CN102127898A (en) | 2010-12-22 | 2010-12-22 | Device and method for turning over steel truss girder member |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593275A (en) * | 2018-04-29 | 2018-09-28 | 南京林业大学 | A kind of truss loading device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988349A (en) * | 1995-09-20 | 1997-03-31 | Tachikawa Blind Mfg Co Ltd | Panel raising device |
| JP2005178940A (en) * | 2003-12-17 | 2005-07-07 | Ohbayashi Corp | Tower crane stand and tower crane supporting method |
| CN101240661A (en) * | 2007-12-28 | 2008-08-13 | 中铁大桥局股份有限公司 | Large steel girder member bar turning device and its member bar turning method |
| CN101525865A (en) * | 2008-12-30 | 2009-09-09 | 中铁二局股份有限公司 | Extroversive posture adjusting method for steel box arch rib section |
| CN201924286U (en) * | 2010-12-22 | 2011-08-10 | 中铁大桥局集团第四工程有限公司 | Turning device for steel truss girder bar |
-
2010
- 2010-12-22 CN CN2010105993455A patent/CN102127898A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988349A (en) * | 1995-09-20 | 1997-03-31 | Tachikawa Blind Mfg Co Ltd | Panel raising device |
| JP2005178940A (en) * | 2003-12-17 | 2005-07-07 | Ohbayashi Corp | Tower crane stand and tower crane supporting method |
| CN101240661A (en) * | 2007-12-28 | 2008-08-13 | 中铁大桥局股份有限公司 | Large steel girder member bar turning device and its member bar turning method |
| CN101525865A (en) * | 2008-12-30 | 2009-09-09 | 中铁二局股份有限公司 | Extroversive posture adjusting method for steel box arch rib section |
| CN201924286U (en) * | 2010-12-22 | 2011-08-10 | 中铁大桥局集团第四工程有限公司 | Turning device for steel truss girder bar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593275A (en) * | 2018-04-29 | 2018-09-28 | 南京林业大学 | A kind of truss loading device |
| CN108593275B (en) * | 2018-04-29 | 2023-11-24 | 南京林业大学 | Truss loading device |
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Application publication date: 20110720 |