CN202543805U - Rear anchor lifting device for erection of major strand of suspension bridge in PPWS (precast parallel wire strand) construction - Google Patents
Rear anchor lifting device for erection of major strand of suspension bridge in PPWS (precast parallel wire strand) construction Download PDFInfo
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- CN202543805U CN202543805U CN2011204907984U CN201120490798U CN202543805U CN 202543805 U CN202543805 U CN 202543805U CN 2011204907984 U CN2011204907984 U CN 2011204907984U CN 201120490798 U CN201120490798 U CN 201120490798U CN 202543805 U CN202543805 U CN 202543805U
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- anchor
- suspension bridge
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Abstract
The utility model relates to the field of PPWS (precast parallel wire strand) construction for suspension bridges, in particular to a rear anchor lifting device for erection of a major strand of a suspension bridge in PPWS construction. The rear anchor lifting device at least comprises a first pulling cable guide wheel unit and support fixed on the floor, and a second pulling cable guide wheel unit and support fixed on an anchorage of the suspension bridge. An anchor lifting device support is fixed between the first pulling cable guide wheel unit and support and the second pulling cable guide wheel unit and support. Strand cylinders are fixed on the anchor lifting device support at intervals. The rear anchor lifting device is characterized in that rails are further arranged on the anchor lifting device support and are located on two sides of each strand cylinder, and an anchor delivering trolley is disposed on the rails. The defects of low construction efficiency caused by failing to pull a rear anchor continuously during erection of traditional strands of suspension bridges in construction and the like are overcome, and efficiency of strand erection is improved.
Description
Technical field
The utility model relates to suspension bridge PPWS construction field, and particularly a kind of suspension bridge PPWS construction main cable strand sets up anchor device on the anchor head of back.
Technical background
Along with advancing by leaps and bounds of infrastructures such as highway in China traffic,, progressively become one of first-selected bridge type of striding river, passage over strait as the strongest suspension bridge of span ability.At home, main rope of suspension bridge generally is made up of tens of up to a hundred prefabricated parallel wire units (PWS is referred to as strand), and strand is made the Suo Panshang of back around 3～4.0m diameter by the system rope factory of specialty, is transported to the main push-towing rope erecting bed and supplies to set up use.It is to carry out under the mode of in trailer system traction, strand being emitted by the rope dish that main cable strand sets up, and is drawn to the opposite side anchorage by a side anchor heavy stone used as an anchor of suspension bridge along the cylinder on the construction cat road.When anchor head was near the opposite side anchorage before strand, back anchor head will be by throwing off in the rope dish, and the anchor head 3kN ~ 8kN that weighs when transferring to anchorage anchor face near the rope dish, overcomes construction environments such as upward slope, turnover.Conventional method is that anchor head is hung on a cableway wire rope through jinnie wheel; Be drawn to gradually by ground in the process of anchor block to anchor face, the cableway wire rope has at least two places to support in the turning point, need adopt coaster to switch in turnover support place; Time-consuming, efficiency of construction is lower.
Summary of the invention
The purpose of the utility model provides a kind of suspension bridge PPWS construction main cable strand and sets up anchor device on the anchor head of back; This device overcomes during traditional suspension bridge construction strand sets up; Back anchor head can not draw continuously, and the efficiency of construction that causes is hanged down inferior problem, improves strand and sets up work efficiency.
The utility model solves the technical scheme that its technical problem adopted: a kind of suspension bridge PPWS construction main cable strand sets up anchor device on the anchor head of back; Which comprises at least the first haulage rope guide wheel group and the support that fixes on the ground and be fixed on second haulage rope guide wheel group and the support on the suspension bridge anchorage; Be fixed with the anchor device support between the first haulage rope guide wheel group and support and the second haulage rope guide wheel group and the support; Fixed interval strand cylinder on the last anchor device support; It is characterized in that: go up on the anchor device support and also be fixed with track, track is positioned at strand cylinder both sides, is equipped with anchor head delivery dolly on the track.
Described track is the twice chute that is distributed in strand cylinder both sides.
Described anchor head delivery dolly is the skid of " ∏ " type structure, and two slide plates of skid bottom are positioned at the track of strand cylinder both sides.
Described track at the turning with the bend radius transition.
Be fixed with anchor head behind the strand on the described anchor head delivery dolly.
The beneficial effect of the utility model is; Owing on last anchor device support, laid rail system; After anchor head is deviate from by the rope dish, be placed on the anchor head delivery dolly that can slide in orbit by crane gear, the delivery dolly is under the tension force after the strand traction drives; Move along track, arrive predetermined installation site.Track with the macrobending radius transition, need not conversion in the turning point in the turning point simultaneously, has reduced subsidiary operation time and labour intensity, thereby has improved construction efficiency.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Fig. 1 is the elevation of anchor device on the anchor head after the utility model;
Fig. 2 is an A-A profile among Fig. 1;
Fig. 3 is a B-B profile among Fig. 2;
Among the figure: 1, rope releasing device; 2, first haulage cable guide wheel and support; 3, go up the anchor device support; 4, second haulage rope guide wheel group and the support; 5, drag cable; 6, suspension bridge anchorage; 7, anchor head delivery dolly; 8, track; 9, strand cylinder; 10, strand; 11, anchor head behind the strand.
The specific embodiment
Embodiment 1:
Shown in the elevation of anchor device on the anchor head behind the utility model of Fig. 1; This mobile Handling device comprises the first haulage rope guide wheel group and the support 2 that fixes on the ground at least and is fixed on the second haulage rope guide wheel group and the support 4 on the suspension bridge anchorage 6; Be fixed with anchor device support 3 between the first haulage rope guide wheel group and support 2 and the second haulage rope guide wheel group and the support 4; The strand cylinder 9 of fixed interval on the last anchor device support 3; Also be fixed with track 8 on the last anchor device support 3, track 8 is positioned at strand cylinder 9 both sides, is equipped with anchor head delivery dolly 7 on the track 8; Rope releasing device 1 is placed on the ground.
During construction, the preceding anchor head of strand 10 is drawn near after near the anchorage of opposite bank, and anchor head 11 is emitted by rope releasing device 1 behind the strand; By crane with strand after anchor head 11 transfer on the anchor head delivery dolly 7 and fixing; Drag cable 5 turns to and supports down traction strand 10 first haulage cable guide wheel and support 2 and the second haulage rope guide wheel group and support 4, and strand 10 supports the back-up roller that gets into the cat road of constructing down at strand cylinder 9 simultaneously, by suspension bridge one side anchor heavy stone used as an anchor strand 10 is led to the opposite bank; Tension force at strand 10 is down dilatory; The track 8 of the setting of anchor head delivery dolly 7 on last anchor device support 3 is advanced, and arrives the installation site of the anchorage 6 of suspension bridge, carries out anchoring.
Above-mentioned track 8 with the macrobending radius transition, need not conversion in the turning point at the turning, guarantees that delivery dolly 7 can be drawn to the precalculated position continuously, has reduced subsidiary operation time and labour intensity, thereby has improved construction efficiency.
Embodiment 2:
Present embodiment and embodiment 1 structure are basic identical; The track 8 of present embodiment is the twice chute that is distributed in strand cylinder 9 both sides; Anchor head delivery dolly 7 is skids of " ∏ " type structure, and two slide plates of skid bottom are positioned at the track 8 of strand cylinder 9 both sides, see Fig. 2 Fig. 3.Since anchor head delivery dolly 7 on track 8, the both sides of strand cylinder 9 arrange; Strand 10 is when drag cable 5 draws; Strand 10 front ends are supported on the strand cylinder 9; Anchor head 11 is fixed on the anchor head delivery dolly 7 behind the strand, under the effect of strand tension force, drags anchor head delivery dolly 7 when sliding in orbit, and delivery dolly 7 can be avoided stopping at strand cylinder 9.
Claims (5)
1. suspension bridge PPWS construction main cable strand sets up anchor device on the anchor head of back; Which comprises at least the first haulage rope guide wheel group and the support that fixes on the ground and be fixed on second haulage rope guide wheel group and the support on the suspension bridge anchorage; Be fixed with the anchor device support between the first haulage rope guide wheel group and support and the second haulage rope guide wheel group and the support; Fixed interval strand cylinder on the last anchor device support; It is characterized in that: go up on the anchor device support and also be fixed with track, track is positioned at strand cylinder both sides, is equipped with anchor head delivery dolly on the track.
2. suspension bridge PPWS construction main cable strand according to claim 1 sets up anchor device on the anchor head of back, and it is characterized in that: described track is the twice chute that is distributed in strand cylinder both sides.
3. suspension bridge PPWS construction main cable strand according to claim 1 sets up anchor device on the anchor head of back, it is characterized in that: described anchor head delivery dolly is the skid of " ∏ " type structure, and two slide plates of skid bottom are positioned at the track of strand cylinder both sides.
4. suspension bridge PPWS according to claim 1 construction main cable strand sets up anchor device on the anchor head of back, it is characterized in that: described track at the turning with the bend radius transition.
5. suspension bridge PPWS according to claim 1 construction main cable strand sets up anchor device on the anchor head of back, it is characterized in that: be fixed with anchor head behind the strand on the described anchor head delivery dolly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204907984U CN202543805U (en) | 2011-12-01 | 2011-12-01 | Rear anchor lifting device for erection of major strand of suspension bridge in PPWS (precast parallel wire strand) construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204907984U CN202543805U (en) | 2011-12-01 | 2011-12-01 | Rear anchor lifting device for erection of major strand of suspension bridge in PPWS (precast parallel wire strand) construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543805U true CN202543805U (en) | 2012-11-21 |
Family
ID=47164459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204907984U Expired - Lifetime CN202543805U (en) | 2011-12-01 | 2011-12-01 | Rear anchor lifting device for erection of major strand of suspension bridge in PPWS (precast parallel wire strand) construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543805U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898428A (en) * | 2019-04-23 | 2019-06-18 | 四川公路桥梁建设集团有限公司 | Conversion adjusting device for anchor main cable traction system of super-large and large inclination angle tunnel |
| CN109973130A (en) * | 2019-04-26 | 2019-07-05 | 四川路桥华东建设有限责任公司 | Once draw construction system and method in place in a kind of main cable strand realization narrow space of Super Long Tunnel anchor |
| CN110065888A (en) * | 2019-05-07 | 2019-07-30 | 中国水利水电第七工程局有限公司 | A kind of cable crane main rope Demolition Construction method |
-
2011
- 2011-12-01 CN CN2011204907984U patent/CN202543805U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898428A (en) * | 2019-04-23 | 2019-06-18 | 四川公路桥梁建设集团有限公司 | Conversion adjusting device for anchor main cable traction system of super-large and large inclination angle tunnel |
| CN109973130A (en) * | 2019-04-26 | 2019-07-05 | 四川路桥华东建设有限责任公司 | Once draw construction system and method in place in a kind of main cable strand realization narrow space of Super Long Tunnel anchor |
| CN109973130B (en) * | 2019-04-26 | 2023-09-08 | 四川路桥华东建设有限责任公司 | Construction system and method for realizing one-time traction of extra-long tunnel anchor narrow space by main cable strand |
| CN110065888A (en) * | 2019-05-07 | 2019-07-30 | 中国水利水电第七工程局有限公司 | A kind of cable crane main rope Demolition Construction method |
| CN110065888B (en) * | 2019-05-07 | 2020-04-28 | 中国水利水电第七工程局有限公司 | Cable crane main cable dismantling construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
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| CX01 | Expiry of patent term |