CN106348034A - Suspension cable steel structure large power plant coal transporting trestle stay cable construction method - Google Patents
Suspension cable steel structure large power plant coal transporting trestle stay cable construction method Download PDFInfo
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- CN106348034A CN106348034A CN201610759195.7A CN201610759195A CN106348034A CN 106348034 A CN106348034 A CN 106348034A CN 201610759195 A CN201610759195 A CN 201610759195A CN 106348034 A CN106348034 A CN 106348034A
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- trestle
- steel strand
- strand wires
- steel
- tensioning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/04—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially-horizontal transit by bridges equipped with conveyors
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a suspension cable steel structure large power plant coal transporting trestle stay cable construction method. A steel strand of a stay cable is drawn by a winch, the steel strand and a sleeve are fed and lifted on a bridge floor, construction cost and safety risk are reduced, a steel structure is simplified by stay cable bridge construction of a coal transporting trestle, the weight of the steel structure is greatly reduced, and engineering cost is reduced. Two sides of the coal transporting trestle are symmetrically tensioned, the influence of lateral tension on the trestle is reduced, and construction is accelerated. An equal tension method is used for tension, single cable force is ensured within the allowable range of design errors, construction speed is increased, and construction quality is guaranteed. The sleeve is welded inside the trestle, the steel strand is fed inside the trestle, the influence of environmental factors is less, waste caused by construction is easily cleaned and recycled, and environmental pollution is less.
Description
Technical field
The present invention relates to the construction field of coal transporting trestle, specifically a kind of suspension cable steel construction large-scale power station coal transporting trestle oblique pull
Rope construction method.
Background technology
Existing power plant needs to configure coal yard, desulfurizer, electric cleaner, side bunker bay, boiler room, chimney, trestle,
Chimney is located between side bunker bay and coal yard, and the line formation axis of side coal bunker, chimney and coal yard, desulfurizer,
Electric cleaner, boiler room are two sets, are respectively arranged on axis both sides；The coal of coal yard needs to be delivered to side coal bunker by trestle
Between.Because, limited by construction site, operating condition is complicated, so the low construction efficiency of coal transporting trestle.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction
Method, using stayed-cable bridge girder construction, and efficiency of construction is high, the coal transporting trestle Stability Analysis of Structures after construction.
The technical scheme is that
Suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method, includes following steps:
(1), the lifting of hdpe pipe and fixation: hoist engine steadily lifts by crane hdpe pipe, and moves to trestle pillar direction, when hdpe pipe
When front end reaches trestle pillar built-in pipe exit, pull Hu Lu with steel wire rope cooperation and clip is exported with trestle pillar built-in pipe
Place's operating platform connects, and hdpe pipe is reserved and all stayed 0.8-1.2m gap, between steel pipe with trestle pillar built-in pipe, trestle respectively
Through the anchorage on trestle pillar and trestle steel truss and tensioning, stretching force is eliminated hdpe pipe with hdpe pipe sag afterwards；
(2), single hanging cable is reeved tensioning: steel wire rope of windlass is bypassed angle pulley, penetrates in hdpe pipe, traction steel strand wires by
Bridge floor goes upward to upper end along along hdpe pipe；By steel strand wires draw rod sequentially pass through into steel bushing bobbin anchorage sealing plate, anchorage taper hole,
And the union joint that steel strand wires are drawn club head is connected with hoist engine pull rope on trestle pillar；Steel strand wires are drawn rod to steel bushing bobbin
Outer traction, makes hoist engine traction rope connection on trestle pillar expose outside steel bushing bobbin；By hoist engine pull rope on trestle pillar
Adapter is connected with steel strand wires；Start hoist engine on trestle pillar, make hoist engine pull rope drive steel strand wires up, until steel twists
Line passes through stretching end anchorage；The connection of hoist engine adapter on removal steel strand wires and trestle pillar, installs intermediate plate simultaneously urgent；Again will
Steel strand wires draw rod and spread out of upwards until it exposes built-in pipe outlet, steel strand wires are drawn rod and is connected with union joint, steel strand wires penetrate stack
, until steel strand wires pass through anchorage on trestle, installation intermediate plate is simultaneously urgent for anchorage on bridge；Stretching end on trestle pillar, installs single hole anti-
Power frame, carries out tensioning top pressure anchoring with single hole jack pair steel strand wires by the given stretching force of design or monitoring；By above-mentioned step
Reeve tensioning by root, until all reeving steel strands of suspension cable finish, then gripped with rope and steel strand wires are tightened rope, and by vibration damping
Device is arranged on built-in pipe mouth of pipe position, adjusts the position of vibroshock and drag-line axis, with welding machine by the voussoir of vibroshock with pre-buried
Pipe spot welding is fixed；
(3), stayed single cable tensioning: connect stretch-draw jack on single steel strand, and pulling force is installed on single steel strand
Sensor, for surveying steel strand wires elongation initial value during 5mpa, stretching end steel strand wires are such as the tensioning oil pressure being loaded onto on single steel strand
Really a stroke fails to meet tensioning requirement, then adopt interim tool clamping piece jury anchor in the continuously tensioning part of this jack
Gu, control afterbody stretching force with the pressure gauge reading of stretch-draw jack, when being allowed to show that changing value is identical with sensor, survey
Terminate stretch value, load onto work clip sheet, appropriateness is urgent, anchor after unloading survey time contracting value when being depressed into 5mpa；Single steel in suspension cable
After twisted wire tensioning terminates, that is, split out pulling force sensor, and reading when removing by pulling force sensor carries out mending tensioning again；In oblique pull
After the completion of all stretching single steel strands of rope, adjustment controls the follow-up flatness of work clip sheet, and in stretching process, gently
Beat work clip sheet and be allowed to follow-up uniformly；Trestle pillar suspension cable answers left and right side classification, and symmetrically synchronization is carried out.
After all steel strand wires hanging cable tensioning in the suspension cable of every Shu Suoshu finish, whole cable force need to be measured whether reach and set
In the Suo Li range of allowable error that meter requires, if exceeding prescribed limit, need to carry out the tensioning such as the employing same with single tendon stretch
The single tune rope that method controls, concrete measurement set-up procedure is: installs overall reaction frame on anchor slab；With single hole jack tension peace
The 2nd steel strand wires equipped with sensor top pressure anchoring, stretching force is controlled by the 2nd stretching rope power；Use single hole jack
Next root steel strand wires of tensioning, stretching force is controlled by sensor show value, when the oil of sensor show value and single hole jack
Stop tensioning when pump oil gauge show value is equal and anchor；Repeat previous step by the order symmetrically interlocked, until last root steel
Twisted wire, and record the sensor display reading of last root steel strand tension；Relatively now sensor reading whether with design
Value is equal, if unequal, carries out mending tensioning；Repeat above step, until tensioning shows to sensor during last root steel strand wires
Show that reading is equal with design load；Suo Li on the 2nd steel strand wires of removal, dismounting single hole anchor slab and sensor, installment work intermediate plate,
With the 2nd steel strand wires of single hole jack tension, its stretching force is consistent with last root steel strand wires display reading and top pressure anchors.
The described welding of hdpe pipe, steel wire are reeved and are carried out all inside trestle.
Advantages of the present invention:
The steel strand wires of suspension cable of the present invention adopt elevator machine travel, steel strand wires and sleeve pipe to carry out blanking, lifting in bridge floor, reduce
Construction cost and security risk；The suspension cable bridge construction of coal transporting trestle simplifies steel construction, significantly reduces steel construction weight,
Reduce engineering cost；The symmetrical tensioning in coal transporting trestle both sides of the present invention, reduces the impact to trestle for the lateral force, accelerates simultaneously
Speed of application；The present invention, using waiting stretching method to carry out tensioning it is ensured that single Suo Li is in design error allowed band, improves
Speed of application, has ensured construction quality；The present invention carries out soldering sleeve, steel wire inside trestle, by environmental factorss shadow
Sound is little, and the garbage easy to clean causing of constructing reclaims, and environmental pollution is little.
Specific embodiment
Below the embodiment it is clear that described is clearly and completely described to the technical scheme in the embodiment of the present invention
It is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
Suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method, includes following steps:
(1), the lifting of hdpe pipe and fixation: hoist engine steadily lifts by crane hdpe pipe, and moves to trestle pillar direction, when hdpe pipe
When front end reaches trestle pillar built-in pipe exit, pull Hu Lu with steel wire rope cooperation and clip is exported with trestle pillar built-in pipe
Place's operating platform connects, and hdpe pipe is reserved and all stayed 0.8-1.2m gap, between steel pipe with trestle pillar built-in pipe, trestle respectively
Through the anchorage on trestle pillar and trestle steel truss and tensioning, stretching force is eliminated hdpe pipe with hdpe pipe sag afterwards；
(2), single hanging cable is reeved tensioning: steel wire rope of windlass is bypassed angle pulley, penetrates in hdpe pipe, traction steel strand wires by
Bridge floor goes upward to upper end along along hdpe pipe；By steel strand wires draw rod sequentially pass through into steel bushing bobbin anchorage sealing plate, anchorage taper hole,
And the union joint that steel strand wires are drawn club head is connected with hoist engine pull rope on trestle pillar；Steel strand wires are drawn rod to steel bushing bobbin
Outer traction, makes hoist engine traction rope connection on trestle pillar expose outside steel bushing bobbin；By hoist engine pull rope on trestle pillar
Adapter is connected with steel strand wires；Start hoist engine on trestle pillar, make hoist engine pull rope drive steel strand wires up, until steel twists
Line passes through stretching end anchorage；The connection of hoist engine adapter on removal steel strand wires and trestle pillar, installs intermediate plate simultaneously urgent；Again will
Steel strand wires draw rod and spread out of upwards until it exposes built-in pipe outlet, steel strand wires are drawn rod and is connected with union joint, steel strand wires penetrate stack
, until steel strand wires pass through anchorage on trestle, installation intermediate plate is simultaneously urgent for anchorage on bridge；Stretching end on trestle pillar, installs single hole anti-
Power frame, carries out tensioning top pressure anchoring with single hole jack pair steel strand wires by the given stretching force of design or monitoring；By above-mentioned step
Reeve tensioning by root, until all reeving steel strands of suspension cable finish, then gripped with rope and steel strand wires are tightened rope, and by vibration damping
Device is arranged on built-in pipe mouth of pipe position, adjusts the position of vibroshock and drag-line axis, with welding machine by the voussoir of vibroshock with pre-buried
Pipe spot welding is fixed；
(3), stayed single cable tensioning: connect stretch-draw jack on single steel strand, and pulling force is installed on single steel strand
Sensor, for surveying steel strand wires elongation initial value during 5mpa, stretching end steel strand wires are such as the tensioning oil pressure being loaded onto on single steel strand
Really a stroke fails to meet tensioning requirement, then adopt interim tool clamping piece jury anchor in the continuously tensioning part of this jack
Gu, control afterbody stretching force with the pressure gauge reading of stretch-draw jack, when being allowed to show that changing value is identical with sensor, survey
Terminate stretch value, load onto work clip sheet, appropriateness is urgent, anchor after unloading survey time contracting value when being depressed into 5mpa；Single steel in suspension cable
After twisted wire tensioning terminates, that is, split out pulling force sensor, and reading when removing by pulling force sensor carries out mending tensioning again；In oblique pull
After the completion of all stretching single steel strands of rope, adjustment controls the follow-up flatness of work clip sheet, and in stretching process, gently
Beat work clip sheet and be allowed to follow-up uniformly；Trestle pillar suspension cable answers left and right side classification, and symmetrically synchronization is carried out；
After often all steel strand wires hanging cable tensioning in bundle suspension cable finish, the rope whether whole cable force reaches design requirement need to be measured
In power range of allowable error, if exceeding prescribed limit, need to carry out the list that the stretching methods such as the employing same with single tendon stretch control
Root adjusts rope, and concrete measurement set-up procedure is: installs overall reaction frame on anchor slab；With single hole jack tension, sensor is installed
The 2nd steel strand wires and top pressure anchoring, stretching force is controlled by the 2nd stretching rope power；With next root of single hole jack tension
Steel strand wires, stretching force is controlled by sensor show value, when the oil pump oil gauge of sensor show value and single hole jack shows
Stop tensioning when indicating value is equal and anchor；Repeat previous step by the order symmetrically interlocked, until last root steel strand wires, and record
The sensor display reading of last root steel strand tension lower；Relatively now whether sensor reading is equal with design load, if not
Equal, then carry out mending tensioning；Repeat above step, until tensioning is to sensor display reading and design during last root steel strand wires
Value is equal；Suo Li on the 2nd steel strand wires of removal, removes single hole anchor slab and sensor, installment work intermediate plate, uses single hole jack
The 2nd steel strand wires of tensioning, its stretching force is consistent with last root steel strand wires display reading and top pressure anchors.
Wherein, the welding of above-mentioned hdpe pipe, steel wire are reeved and are carried out all inside trestle.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (3)
1. suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method it is characterised in that: include following steps:
(1), the lifting of hdpe pipe and fixation: hoist engine steadily lifts by crane hdpe pipe, and moves to trestle pillar direction, when hdpe pipe
When front end reaches trestle pillar built-in pipe exit, pull Hu Lu with steel wire rope cooperation and clip is exported with trestle pillar built-in pipe
Place's operating platform connects, and hdpe pipe is reserved and all stayed 0.8-1.2m gap, between steel pipe with trestle pillar built-in pipe, trestle respectively
Through the anchorage on trestle pillar and trestle steel truss and tensioning, stretching force is eliminated hdpe pipe with hdpe pipe sag afterwards；
(2), single hanging cable is reeved tensioning: steel wire rope of windlass is bypassed angle pulley, penetrates in hdpe pipe, traction steel strand wires by
Bridge floor goes upward to upper end along along hdpe pipe；By steel strand wires draw rod sequentially pass through into steel bushing bobbin anchorage sealing plate, anchorage taper hole,
And the union joint that steel strand wires are drawn club head is connected with hoist engine pull rope on trestle pillar；Steel strand wires are drawn rod to steel bushing bobbin
Outer traction, makes hoist engine traction rope connection on trestle pillar expose outside steel bushing bobbin；By hoist engine pull rope on trestle pillar
Adapter is connected with steel strand wires；Start hoist engine on trestle pillar, make hoist engine pull rope drive steel strand wires up, until steel twists
Line passes through stretching end anchorage；The connection of hoist engine adapter on removal steel strand wires and trestle pillar, installs intermediate plate simultaneously urgent；Again will
Steel strand wires draw rod and spread out of upwards until it exposes built-in pipe outlet, steel strand wires are drawn rod and is connected with union joint, steel strand wires penetrate stack
, until steel strand wires pass through anchorage on trestle, installation intermediate plate is simultaneously urgent for anchorage on bridge；Stretching end on trestle pillar, installs single hole anti-
Power frame, carries out tensioning top pressure anchoring with single hole jack pair steel strand wires by the given stretching force of design or monitoring；By above-mentioned step
Reeve tensioning by root, until all reeving steel strands of suspension cable finish, then gripped with rope and steel strand wires are tightened rope, and by vibration damping
Device is arranged on built-in pipe mouth of pipe position, adjusts the position of vibroshock and drag-line axis, with welding machine by the voussoir of vibroshock with pre-buried
Pipe spot welding is fixed；
(3), stayed single cable tensioning: connect stretch-draw jack on single steel strand, and pulling force is installed on single steel strand
Sensor, for surveying steel strand wires elongation initial value during 5mpa, stretching end steel strand wires are such as the tensioning oil pressure being loaded onto on single steel strand
Really a stroke fails to meet tensioning requirement, then adopt interim tool clamping piece jury anchor in the continuously tensioning part of this jack
Gu, control afterbody stretching force with the pressure gauge reading of stretch-draw jack, when being allowed to show that changing value is identical with sensor, survey
Terminate stretch value, load onto work clip sheet, appropriateness is urgent, anchor after unloading survey time contracting value when being depressed into 5mpa；Single steel in suspension cable
After twisted wire tensioning terminates, that is, split out pulling force sensor, and reading when removing by pulling force sensor carries out mending tensioning again；In oblique pull
After the completion of all stretching single steel strands of rope, adjustment controls the follow-up flatness of work clip sheet, and in stretching process, gently
Beat work clip sheet and be allowed to follow-up uniformly；Trestle pillar suspension cable answers left and right side classification, and symmetrically synchronization is carried out.
2. suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method according to claim 1 it is characterised in that:
After all steel strand wires hanging cable tensioning in the suspension cable of every Shu Suoshu finish, need to measure whether whole cable force reaches design requirement
In Suo Li range of allowable error, if exceeding prescribed limit, need to carry out what the stretching methods such as the employing same with single tendon stretch controlled
Single tune rope, concrete measurement set-up procedure is: installs overall reaction frame on anchor slab；With single hole jack tension, sensing is installed
2nd steel strand wires of device top pressure anchoring, stretching force is controlled by the 2nd stretching rope power；With single hole jack tension next
Root steel strand wires, stretching force is controlled by sensor show value, when the oil pump oil gauge of sensor show value and single hole jack
Stop tensioning when show value is equal and anchor；Repeat previous step by the order symmetrically interlocked, until last root steel strand wires, and remember
The sensor display reading of record last root steel strand tension lower；Relatively now whether sensor reading is equal with design load, if
Unequal, then carry out mending tensioning；Repeat above step, until tensioning shows reading and sets to sensor during last root steel strand wires
Evaluation is equal；Suo Li on the 2nd steel strand wires of removal, dismounting single hole anchor slab and sensor, installment work intermediate plate, very heavy with single hole
Top the 2nd steel strand wires of tensioning, its stretching force is consistent with last root steel strand wires display reading and top pressure anchors.
3. suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method according to claim 1 it is characterised in that:
The described welding of hdpe pipe, steel wire are reeved and are carried out all inside trestle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759195.7A CN106348034B (en) | 2016-08-30 | 2016-08-30 | Suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759195.7A CN106348034B (en) | 2016-08-30 | 2016-08-30 | Suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method |
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| Publication Number | Publication Date |
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| CN106348034A true CN106348034A (en) | 2017-01-25 |
| CN106348034B CN106348034B (en) | 2018-08-17 |
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| CN201610759195.7A Active CN106348034B (en) | 2016-08-30 | 2016-08-30 | Suspension cable steel construction large-scale power station coal transporting trestle stayed Cable Construction method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967796A (en) * | 2010-09-19 | 2011-02-09 | 湖南路桥建设集团公司 | Method for arranging parallel steel wire stay cable |
| JP2012012917A (en) * | 2010-06-29 | 2012-01-19 | Norio Sudo | Roof trestle for adjusting tension of stay wire |
| CN203603543U (en) * | 2013-11-05 | 2014-05-21 | 中国能源建设集团广东省电力设计研究院 | Coal conveying system |
| CN203782575U (en) * | 2014-01-20 | 2014-08-20 | 中交一公局厦门工程有限公司 | Stay cable hanging and tension construction device |
| WO2014202119A1 (en) * | 2013-06-18 | 2014-12-24 | Ftn Fahrzeugtechnik Nord Gmbh | Mobile bridge system |
| CN105401523A (en) * | 2015-09-30 | 2016-03-16 | 中铁港航局集团有限公司 | Hanging mounting method of long heavy stay cable under space limited condition |
| CN105507149A (en) * | 2015-11-25 | 2016-04-20 | 安徽金星预应力工程技术有限公司 | Arrangement method for cable-hanging of single parallel steel strand wires |
| CN105568856A (en) * | 2015-12-23 | 2016-05-11 | 中铁大桥局集团有限公司 | Synchronous construction method for sparse-cable-stayed bridge cable beam |
-
2016
- 2016-08-30 CN CN201610759195.7A patent/CN106348034B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012012917A (en) * | 2010-06-29 | 2012-01-19 | Norio Sudo | Roof trestle for adjusting tension of stay wire |
| CN101967796A (en) * | 2010-09-19 | 2011-02-09 | 湖南路桥建设集团公司 | Method for arranging parallel steel wire stay cable |
| WO2014202119A1 (en) * | 2013-06-18 | 2014-12-24 | Ftn Fahrzeugtechnik Nord Gmbh | Mobile bridge system |
| CN203603543U (en) * | 2013-11-05 | 2014-05-21 | 中国能源建设集团广东省电力设计研究院 | Coal conveying system |
| CN203782575U (en) * | 2014-01-20 | 2014-08-20 | 中交一公局厦门工程有限公司 | Stay cable hanging and tension construction device |
| CN105401523A (en) * | 2015-09-30 | 2016-03-16 | 中铁港航局集团有限公司 | Hanging mounting method of long heavy stay cable under space limited condition |
| CN105507149A (en) * | 2015-11-25 | 2016-04-20 | 安徽金星预应力工程技术有限公司 | Arrangement method for cable-hanging of single parallel steel strand wires |
| CN105568856A (en) * | 2015-12-23 | 2016-05-11 | 中铁大桥局集团有限公司 | Synchronous construction method for sparse-cable-stayed bridge cable beam |
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|---|---|
| CN106348034B (en) | 2018-08-17 |
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Address after: 230000 no.218, Xiangzhang Avenue, hi tech Development Zone, Hefei City, Anhui Province Patentee after: China Energy Construction Group Co.,Ltd. Address before: No.218, Xiangzhang Avenue, high tech Development Zone, Hefei City, Anhui Province, 230088 Patentee before: China Energy Engineering Group Anhui No.1 Electric Power Construction Co.,Ltd. |