CN101798798A - Special catwalk hung with multilayer horizontal inhaul cables - Google Patents
Special catwalk hung with multilayer horizontal inhaul cables Download PDFInfo
- Publication number
- CN101798798A CN101798798A CN201010147694A CN201010147694A CN101798798A CN 101798798 A CN101798798 A CN 101798798A CN 201010147694 A CN201010147694 A CN 201010147694A CN 201010147694 A CN201010147694 A CN 201010147694A CN 101798798 A CN101798798 A CN 101798798A
- Authority
- CN
- China
- Prior art keywords
- special
- catwalk
- inhaul cables
- hung
- crossbeam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a special catwalk hung with multilayer horizontal inhaul cables, comprising haff jigs (101), a cross beam (103), railings (105) and cable releasing slideways (102), wherein the haff jigs (101) fix the horizontal inhaul cables and are fixed at the lower end of the cross beam (103); the railings (105) are vertically fixed on both ends of the cross beam (103); and the cable releasing slideways (102) are fixed in the middle of the cross beam (103). The special catwalk has simple structure and convenient installation, use and disassembly; a hanging method of the special catwalk overcomes the defects of larger capped cable force of the horizontal inhaul cables and high cost of the traditional method, easy steel wire bundle knotting, and the like; and in addition, the hanging method of the multilayer horizontal inhaul cables has the advantages of convenient construction, safety, reliability and low cost.
Description
Technical field
The present invention relates to a kind of special catwalk hung with multilayer horizontal inhaul cables in the bridge engineering.
Background technology
In big Span Continuous steel braced arch construction, the two cantilever erections of intermediate pier girder steel need adopt multilaminar high strength wire digging line jump stay auxiliary often, with control girder steel stress and amount of deflection.The anchored end of jump stay and stretch-draw end are respectively by the anchor case, carry out bearing pin with the swallow plate that stretches out from the girder steel node and be connected, not needing to adopt tower with suspended cable, auxiliary (if adopt pylon, then expense is higher, general large-scale pylon needs more than 2,000 ten thousand yuan, and medium-sized pylon also needs more than 1,000 ten thousand yuan).
For hanging of multilayer jump stay, usually adopt and hang identical method with suspension cable, promptly on girder steel with the drag-line expansion, after by hoisting machine or loop wheel machine the anchored end of drag-line being in place, by soft traction, hard traction the stretch-draw end anchor head of drag-line is attached the names of pre-determined candidates then, put in place until stretch-draw.This hangs method and generally has following problem: the Suo Li that attaches the names of pre-determined candidates of (1) jump stay is bigger, needs to be provided with long hard traction tension rod, not only stretch-draw difficulty, the cost of drawing tension rod firmly also very big (general every need tens0000 are to hundreds of thousands unit); (2) because each layer rope at the vertical direction coplane, when before back one deck drag-line hangs drag-line being launched, is subjected to preceding one deck influence of the drag-line of stretch-draw, occurs steel tendon easily and beat the strand phenomenon.
Summary of the invention
The objective of the invention is to overcome above-mentioned existing disadvantages of background technology part, and a kind of special catwalk hung with multilayer horizontal inhaul cables is provided.
The objective of the invention is to reach: special catwalk hung with multilayer horizontal inhaul cables by following measure, it comprises the Hough anchor clamps of fixed level drag-line, the lower end that the Hough anchor clamps are fixed on crossbeam, two ends at crossbeam vertically are fixed with railing, are fixed with at the medium position of crossbeam and put the rope slideway.
In technique scheme, be equipped with gauze wire cloth on the described crossbeam.
In technique scheme, describedly be placed with the lumps of wood at the crossbeam interbody spacer.
In technique scheme, described cat also comprises support on the road, and described support is arranged on the transition position between jump stay and the steel girder cantilever.
The special-purpose cat of the present invention road simple in structure, install and use and remove all convenient.Adopt the method for hanging of the multilayer jump stay in the special-purpose cat of the present invention road to have following advantage: the method that hangs of abandoning tradition, interim cat road is set on one deck rope before mounted, the Suo Pingtai of putting as back one deck drag-line, reduce the band cap Suo Li of back one deck rope, reduce hanging difficulty, solved the problem that back one deck rope expansion is influenced by preceding one deck rope simultaneously.The method that the hangs easy construction of multilayer jump stay of the present invention, safe and reliable and expense is low.
Through calculating: compare with the oblique La Lasuo method of hanging, the inventive method reduces by about 2/3 stretching force, and if the span of steel bridge is big, then the stretching force of Jian Shaoing is bigger.
Description of drawings
The general arrangement that Fig. 1 hangs for multilayer jump stay of the present invention.
The interarea schematic diagram in the special-purpose cat of Fig. 2 the present invention road.
Fig. 3 is the structure vertical view of Fig. 2.
Fig. 4 is the schematic cross-sectional view of Fig. 2.
Fig. 5 is the plane structure schematic diagram (overlooking state) in special-purpose cat road.
Fig. 6 is the jump stay anchored end schematic diagram of attaching the names of pre-determined candidates.
Fig. 7 is the jump stay stretch-draw end schematic diagram of attaching the names of pre-determined candidates.
Fig. 8, Fig. 9, Figure 10 are respectively the block diagram that the multilayer jump stay hangs method.
1. beam faces among the figure, 2, girder steel integral node, 3. rope dish.
100. special-purpose cat road (or claiming the cat road), 101. Hough anchor clamps, 102. put the rope slideway, 102A. limiting plate, 102B. steel roller bearing, 103. crossbeams, 104. lumps of wood, 105. railings, 106. gauze wire cloths, 107. supports.
200. cable systems, 201. anchor casees, 202. swallow plates, 203. jump stays (or claiming drag-line), 204. bearing pin, 205. position bars, 206. nuts, 207. is very heavy pre-, 208. anchor head, 203A. first floor jump stay, 203B. second layer jump stay, the 3rd layer of jump stay of 203C..
300. dynamic traction device.
The specific embodiment
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they do not constitute limitation of the invention, only do for example.Simultaneously by illustrating that advantage of the present invention will become clear more and understanding easily.
Consult accompanying drawing as can be known: the method that hangs of multilayer jump stay of the present invention, 1. it comprise the steps:. on beam face 1, be provided with and put Suo Pingtai, the anchored end of first floor jump stay 203A is in place, by soft traction with draw firmly and the stretch-draw end anchor head of drag-line attached the names of pre-determined candidates (end of drag-line is an anchored end, the other end is the stretch-draw end), and stretch-draw puts in place; 2.. be provided for placing the cat road 100 of second layer jump stay 203B in the upper end of first floor jump stay 203A, second layer jump stay 203B is launched on cat road 100, the anchored end of second layer jump stay 203B is in place, by soft traction and hard traction the stretch-draw end anchor head of second layer jump stay 203B is attached the names of pre-determined candidates, and stretch-draw puts in place; 3.. be provided for placing the cat road 100 of the 3rd layer of jump stay 203C in the upper end of second layer jump stay 203B, the 3rd layer of jump stay 203C launched on cat road 100, the anchored end of the 3rd layer of jump stay 203C is in place, and by soft traction and hard traction the stretch-draw end anchor head of the 3rd layer of jump stay 203C is attached the names of pre-determined candidates, and stretch-draw puts in place; 4.. until the whole stretch-draw of all jump stays are put in place (as Fig. 1, Fig. 8, Fig. 9, shown in Figure 10).
Need to prove: special-purpose cat road (or claim cat road) uses for the interim drag-line of placing, when water increase drag-line by the Zhang Weicheng jump stay after, the cat road need be removed.In addition: every layer of jump stay generally comprises four drag-lines (but the present invention does not get rid of the drag-line that adopts other radical), have only after four drag-lines are all put in place by stretch-draw, special-purpose cat road could be set thereon, and wherein Shang Duan two drag-lines are by Hough anchor clamps 101 fixing (four drag-lines be square distribution).And wherein the technique for fixing of anchored end and stretch-draw end is a prior art.
Special catwalk hung with multilayer horizontal inhaul cables 100 of the present invention, it comprises the Hough anchor clamps 101 of fixed level drag-line, the lower end that Hough anchor clamps 101 are fixed on crossbeam 103, two ends at crossbeam 103 vertically are fixed with railing 105, are fixed with at the medium position of crossbeam 103 and put rope slideway 102.The two ends of putting rope slideway 102 vertically are fixed with limiting plate 102A, and middle traverse has steel roller bearing 102B, and is more laborsaving when this structure is put drag-line.Be equipped with gauze wire cloth 106 (making things convenient for the people to walk) on the crossbeam 103 in the above, be placed with the lumps of wood 104 (lumps of wood replaces crossbeam, but weight reduction reduces the span between the crossbeam simultaneously) at crossbeam 103 interbody spacers.Also comprise support 107 on the cat road 100, support 107 is arranged on transition position between jump stay and the steel girder cantilever, and (support 107 is arranged on the transition position between jump stay and the girder steel integral node in other words, as shown in Figure 1).The installation of support can make the placement of drag-line steady, and (as Fig. 2, Fig. 3, Fig. 4, Fig. 5) stablized in stretch-draw.
The Lower Half of putting rope slideway 102 and crossbeam 103 and Hough anchor clamps 101 in cat road 101 and the first half adopt outside bolt is connected, and other all is welded into an integral body.Wherein Hough anchor clamps 101 are two semi-moon shaped group welding pieces, by the top and the bottom bolt jump stay is held tightly, put the rope slideway 102 hyte welding structure that exceeds, its base plate is connected with the crossbeam roof bolt, jump stay 203 can slide putting on the rope slideway, the end face welding of crossbeam 103 bottom surfaces and Hough anchor clamps 101.Support 107 is arranged on the position, upper strata of the stretch-draw end of frame rope, lays gauze wire cloth 106 in cat road total length and promptly forms along the construction passage of adorning jump stay the second layer and identical with the job practices on upper strata.
Cable systems 200 comprises anchor case 201, swallow plate 202, jump stay 203, bearing pin 204, tension rod 205, nut 206, jack 207 and anchor head 208 compositions.Anchor case 201 is a box-girder, be connected by bearing pin 204 with the swallow plate 202 on the girder integral node 2, the anchored end that carries the jump stay 203 of anchor head 208 is worn by the dynamic traction device 300 of this side and is pulled, and 208 of the anchor heads of jump stay 203 are put rope and by jack 207 jump stay band cap are pulled to builder's tonnage (as Fig. 6, shown in Figure 7) by tension rod 205 putting by the dynamic traction device 300 of symmetrical side on the rope slideway 102.
Specifically putting the rope process is: after preceding one deck jump stay end face is installed interim cat road 100, the drag-line rope dish 3 of layer to be installed sling be placed near the swallow plate 202, anchored end anchor head 208 is mounted to design attitude, by dynamic traction device 300 jump stay 203 is launched along the rope slideway 102 of putting on the interim cat road 100; By dynamic traction device 300 first tension rod 205 put on nut 206, carry out stretch-draw with 207 pairs of second tension rods 205 of large-tonnage jack then, anchor head 208 is attached the names of pre-determined candidates to design attitude (as Fig. 6, shown in Figure 7).
Calculation and Study shows: preceding one deck drag-line is owing to the increase of the working load in interim cat road, and its Suo Li can increase to some extent, but recruitment is very limited, the operate as normal of one deck drag-line before can not having influence on.
The inventive method, though increased interim cat road expense, but since reduced drag-line band cap Suo Li, shortened hard traction tension rod length, reduced hang difficulty and solved back one deck rope launch to be subjected to before problems such as one deck rope influences, its society and remarkable in economical benefits.
Claims (4)
1. special catwalk hung with multilayer horizontal inhaul cables, it is characterized in that it comprises the Hough anchor clamps (101) of fixed level drag-line, the lower end that Hough anchor clamps (101) are fixed on crossbeam (103), vertically be fixed with railing (105) at the two ends of crossbeam (103), be fixed with at the medium position of crossbeam (103) and put rope slideway (102).
2. special catwalk hung with multilayer horizontal inhaul cables according to claim 1 is characterized in that being equipped with on the described crossbeam (103) gauze wire cloth (106).
3. special catwalk hung with multilayer horizontal inhaul cables according to claim 1 is characterized in that describedly being placed with the lumps of wood (104) at crossbeam (103) interbody spacer.
4. special catwalk hung with multilayer horizontal inhaul cables according to claim 1 is characterized in that also comprising support (107) on the described cat road that described support (107) is arranged on the transition position between jump stay and the steel girder cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010147694A CN101798798A (en) | 2008-12-30 | 2008-12-30 | Special catwalk hung with multilayer horizontal inhaul cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010147694A CN101798798A (en) | 2008-12-30 | 2008-12-30 | Special catwalk hung with multilayer horizontal inhaul cables |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102463017A Division CN101457516B (en) | 2008-12-30 | 2008-12-30 | Multilayer horizontal stay fixing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101798798A true CN101798798A (en) | 2010-08-11 |
Family
ID=42594630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010147694A Pending CN101798798A (en) | 2008-12-30 | 2008-12-30 | Special catwalk hung with multilayer horizontal inhaul cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101798798A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805770A (en) * | 2015-04-15 | 2015-07-29 | 中交二公局第二工程有限公司 | Method for erecting canyon-spanning temporary passage applicable to mountainous area |
| CN112575685A (en) * | 2020-12-08 | 2021-03-30 | 上海市基础工程集团有限公司 | Heavy tie bar river-crossing construction device for large-span basket type steel arch bridge |
-
2008
- 2008-12-30 CN CN201010147694A patent/CN101798798A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805770A (en) * | 2015-04-15 | 2015-07-29 | 中交二公局第二工程有限公司 | Method for erecting canyon-spanning temporary passage applicable to mountainous area |
| CN112575685A (en) * | 2020-12-08 | 2021-03-30 | 上海市基础工程集团有限公司 | Heavy tie bar river-crossing construction device for large-span basket type steel arch bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101684639B (en) | Process method for construction of steel-structured suspension bridge and light type cable carrying crane specially used in same | |
| CN206521197U (en) | A kind of adjustable balance hoisting beam | |
| CN103321416B (en) | Construction method for prestress of cable-stayed grid structure | |
| CN101537976B (en) | Dual-tower-mast giant self-lifting crane and following-carrying lifting method thereof | |
| CN109487709B (en) | One-side riding type temporary rope self-balancing pushing type suspension bridge sling replacement underpinning device | |
| CN102912730A (en) | Hoisting construction method for single-rib closure rope of large-span reinforced concrete arch bridge | |
| CN201376848Y (en) | Large-scale double-tower automatic-elevation hoisting equipment | |
| CN109537476B (en) | Pin lug type double-temporary-rope self-balancing pulling type suspension bridge sling replacement underpinning device | |
| CN112554076A (en) | Continuous small-stroke hanging basket bottom basket lowering device and construction method | |
| CN101457516B (en) | Multilayer horizontal stay fixing method | |
| CN107642049B (en) | Device for replacing main cable clamp of suspension bridge and installation method of device | |
| CN101798798A (en) | Special catwalk hung with multilayer horizontal inhaul cables | |
| CN111335172A (en) | Movable pier column cross beam prestress tensioning hanging frame construction platform and construction method | |
| CN217948828U (en) | Front supporting point inclined climbing hanging basket for arch bridge | |
| CN214656390U (en) | Continuous small-stroke lowering device for bottom basket of hanging basket | |
| CN108643021A (en) | Main arch sunpender wind resistance vibration control structure | |
| CN212559207U (en) | Bridge floor crane | |
| CN212358007U (en) | Tie bar pocket hanging device without temporary cross beam | |
| CN211257921U (en) | Steel bar truss building carrier plate draws device and system to one side | |
| CN203065046U (en) | Self-stabilizing double-rocker-arm lifting device for installation of high-rise tower | |
| CN203188109U (en) | Multi-span ground anchor type suspension bridge | |
| CN112049017A (en) | Bailey frame integral frame falling device for cast-in-place box girder and construction process | |
| CN201530682U (en) | Hoisting device suitable for hoisting steel box girder | |
| CN109264588B (en) | Lower hanging type multi-tower continuous span cable crane with C-shaped crown block and crown block tower span method thereof | |
| CN109110655B (en) | T-shaped crown block of cable crane and matched cable saddle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |