CN107165062A - A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame - Google Patents
A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame Download PDFInfo
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- CN107165062A CN107165062A CN201710548953.5A CN201710548953A CN107165062A CN 107165062 A CN107165062 A CN 107165062A CN 201710548953 A CN201710548953 A CN 201710548953A CN 107165062 A CN107165062 A CN 107165062A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is related to construction of railways field, the present invention is using steel pipe column fluting, allowing D types, just beam longeron is fallen into the steel pipe column groove of opening, so as to which protecting canopy frame be reduced, to remove D types just beam crossbeam, crossbeam brace, which is removed, provides working space, not only it ensure that Existing Railway Line safety but also solved protecting canopy frame and bear bent cap and pushed down the problem that can not be taken out, the present invention is after transom pier Coping Construction is complete, ensure in the case of Existing Railway Line safety to the D types of bent cap bottom just beam, steel pipe column, I-steel, scaffold etc. carries out safety, quickly remove, it is adapted to large-scale promotion and application.
Description
【Technical field】
The present invention relates to construction of railways field, and in particular to a kind of side of dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame
Method.
【Background technology】
Known, to adapt to the target call built a well-off society in an all-round way, the railway network will expand scale, and perfect frame improves matter
Amount, rapid expansion transport capacity improves rapidly equipment.The year two thousand twenty is expected, china railway revenue kilometres reach that 120,000 is public
In, main busy trunk lines are realized and separated lines for passenger and freight, and complex line rate and electrochemical rate respectively reach 50% and more than 60%, and transport capacity meets state
People's economy and social development need, and major technique equipment reaches or approaches advanced international standards.Railway is in actual work progress
In, particularly larger in the special region difficulty of construction of some environment, working security is also poor, with white mountain village two-wire grand bridge
Exemplified by line construction, white mountain village two-wire grand bridge total length 3612.179m, wherein 37#, 38# pier are across existing in transom pier box beam
Hunan and Guangxi railway, bridge and existing Hunan and Guangxi railway angle are 12 °, and transom pier and existing Hunan and Guangxi railway angle are 102 °, 37#, 38#
Formula pier capping beam is designed as post stretching C50 prestressed reinforced concretes, and sectional dimension is 3 × 2.5 meters, and 37# pier capping beams bottom is away from existing
Line rail level clear height is 7.982m；38# pier capping beams bottom is 8.144m away from both wired rail level clear height.Because white mountain village two-wire grand bridge 37#,
Across existing Hunan and Guangxi railway on 38# transom piers, bent cap weighs 480 tons, and existing Bailey beam and rice steelframe can not be used by being limited by clear height
Sky construction, difficulty of construction and very risky, therefore, applicant investigated the construction method of a kind of both wired transom pier bent cap,
But after the completion of transom pier Coping Construction, need in the case where ensureing Existing Railway Line safety to the D types of bent cap bottom just beam,
Steel pipe column, I-steel, scaffold etc. are removed, then how to be provided a kind of relatively reasonable construction method and also seemed have particularly
It is important.
【The content of the invention】
It is not enough present in background technology to overcome, remove Existing Railway Line gate-type pier capping beam protection canopy the invention provides one kind
The method of frame, the present invention is after transom pier Coping Construction is complete, it is ensured that to the D types of bent cap bottom in the case of Existing Railway Line safety
Just beam, steel pipe column, I-steel, scaffold etc. carry out safety, quickly removed.
To realize goal of the invention as described above, the present invention uses technical scheme as described below：
A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, methods described specifically includes following steps：
The first step, removes chamfering scaffold：
Warning is set when removing scaffold first, eye-catching caution notice is hung, forbids non-operator and ground construction personnel
It is current, and there is special messenger to be responsible for warning；Wherein long vertical rod, the dismounting of brace are carried out with two people, it is impossible to separate operaton, when coming off duty
It should check whether firmly, or add interim fixed support, prevent accident；When removing outrigger, steel pipe and fastener had forbidden intrusion both
Wired roadbed, the steel pipe of dismounting is placed in away from roadbed side, is torn open afterwards by first filling from top to bottom, the order first torn open is filled afterwards；Specifically
Dismounting order be：Safety net, bridging, leger, small cross bar, vertical rod, are removed from top to bottom, and a step one is clear, must not use and step on
Step formula is removed, and is forbidden upper and lower while operation；Meeting high wind, rainy weather, it is impossible to carry out outrigger dismounting；The steel pipe of dismounting and buckle
Part classification is stacked, and forbids high-altitude throwing；
Second step, hangs out pavement job platform：
In vertical skylight point job platform is hung out using crane；
D types just beam, drops in the 3rd step：
First in the fulcrum of transom pier two respectively with jack connection ￠ 36mm~just beam is caught 50mm steel wire ropes by D types, uses jack
Steel wire rope is tensed, power is able to eat, jack pocket D types just beam；Then with four welding gun along along the first transverse cuts transom pier in I-steel side
The steel pipe column top ring flange of side four, notes cutting along I-steel flange plate during cutting, while keeping cut surface to get out of the way I-shaped
Steel 2~3cm of flange plate, must not burn I-steel, finally four steel pipe column ring flanges on the outside of transverse cuts transom pier again；Transom pier
After two ends ring flange has been cut, four steel pipe columns on the inside of cutting transom pier are first found, then found four steel on the outside of cutting transom pier
Tubing string, cuts 1~2cm every time, and transom pier two ends symmetrically wait height to cut, allow I-steel uniform settlement into steel pipe column otch,
Every steel pipe column cut height reaches 10cm~20cm and completes to stop cutting after beam；
4th step, removes D types just beam crossbeam brace：
In skylight point, the lumps of wood is completely spread on girder falling, the lumps of wood is fixed on girder falling with iron wire, workman lies on the lumps of wood and torn open
Except brace, brace moves to both sides after dismantling, then hang brace onto ground, to prevent bolt from dropping to both wired sides in full paving
The wooden both sides binding lumps of wood is used as baffle plate；
5th step, removes D types just beam crossbeam：
Before just beam crossbeam is removed in D types first, bent cap bed die and the lumps of wood are plucked out；The dismounting of crossbeam, is constructed using skylight point, tears horizontal stroke open
Liang Shi, first skylight point, from span centre toward two ends, first removes connection metal plate to unload based on bolt, then loosens vertical bolt, to prevent
During removal bolt, bolt falls into both wired and influences both wired traffic safety, the lumps of wood ability after removal crossbeam on girder falling
Remove, after whole vertical bolt loosenesses, then by vertical disassembling bolts, but the two ends of every crossbeam each remain a vertical bolt
Do not unload, laid down again when the root crossbeam slides, take out crossbeam operation and completed successively in follow-up skylight point, from two ends to span centre direction
Removed by root；The method that crossbeam is exited from just beam is：Anti-fall back is less than crossbeam bottom, in order to avoid crossbeam pounds anti-during falling beam
Fall beam, the instrument used is：It is connected with jack with crossbeam two ends, connecting plate, bracket, the bolt of crossbeam are slowly loose after all coming loose
Jack is driven, crossbeam is put on the lumps of wood on girder falling, then with jack support to job platform, is hung out crossbeam with crane；It is horizontal
Beam will prevent D type beams from toppling over when removing in the middle of remaining last two, now should all loosen jack and be taken with the lumps of wood at its two ends
Bearing diagonal is by D type beam supporting ＆ stablizings；
6th step, hangs out D types just beam longeron：
Crossbeam removes crossbeam as early as possible after disintegrating with longeron, unclamp jack, hang out longeron, and just the longeron of beam removes block circuit,
Hung out using crane, just beam longeron is hung out in two times, unclamp side jack and hang out a side girder, then unclamp opposite side jack,
Hang out another side girder；
7th step, removes sleeper, H profile steel, girder falling, I-steel：
Using skylight point, the sleeper of steel pipe column branch pier top, H profile steel, I-steel are hung down with crane, by bent cap bottom girder falling
H profile steel is removed with jack, and application block point is hung to ground；
8th step, removes steel pipe column buttress：
Using skylight point, fixing bolt on ring flange is first removed, steel pipe column is hauled with crane, then dismantle the angle being connected with pier stud
Steel, finally hangs out steel pipe column buttress.
The method of described dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, the crane is 100T cranes.
The method of described dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, the size of the lumps of wood for 10cm ×
10cm。
In the method for described dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, the 6th step block circuit when
Between be 60 minutes.
Using technical scheme as described above, the present invention has superiority as described below：
A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame of the present invention, the present invention is opened using steel pipe column
Groove, allowing D types, just beam longeron is fallen into the steel pipe column groove of opening, so as to protecting canopy frame be reduced, to remove D types just beam crossbeam, horizontal stroke
Beam brace, which is removed, provides working space, not only ensure that Existing Railway Line safety but also had solved protecting canopy frame and bear bent cap and has pushed down nothing
The problem that method is taken out, the present invention is after transom pier Coping Construction is complete, it is ensured that to bent cap bottom in the case of Existing Railway Line safety
D types just beam, steel pipe column, I-steel, scaffold etc. carry out safety, quickly remove, be adapted to large-scale promotion and application.
【Embodiment】
The present invention can be explained in more detail by the following examples, the invention is not limited in the following examples；
It is of the present invention it is a kind of remove Existing Railway Line gate-type pier capping beam protecting canopy frame method, methods described specifically include as
Lower step：
The first step, removes chamfering scaffold：
Warning is set when removing scaffold first, eye-catching caution notice is hung, forbids non-operator and ground construction personnel
It is current, and there is special messenger to be responsible for warning；Wherein long vertical rod, the dismounting of brace are carried out with two people, it is impossible to separate operaton, when coming off duty
It should check whether firmly, or add interim fixed support, prevent accident；When removing outrigger, steel pipe and fastener had forbidden intrusion both
Wired roadbed, the steel pipe of dismounting is placed in away from roadbed side, is torn open afterwards by first filling from top to bottom, the order first torn open is filled afterwards；Specifically
Dismounting order be：Safety net, bridging, leger, small cross bar, vertical rod, are removed from top to bottom, and a step one is clear, must not use and step on
Step formula is removed, and is forbidden upper and lower while operation；Meeting the weathers such as high wind, rain, it is impossible to carry out outrigger dismounting；The steel pipe of dismounting and buckle
Part classification is stacked, and forbids high-altitude throwing；
Second step, hangs out pavement job platform：
In vertical skylight point job platform is hung out using 100T cranes；
D types just beam, drops in the 3rd step：
First three point one of two fulcrum of transom pier across, 2/3rds across place, it is each with a 10T jacks connection ￠ 36mm~50mm steel
By D types, just beam is caught cord, is tensed steel wire rope with jack, is able to eat power, jack pocket D types just beam；Then with four welding gun along work
Four steel pipe columns on the inside of word steel side elder generation transverse cuts transom pier（Left two, pier, right two, pier）Ring flange is pushed up, noting during cutting will
Cut along I-steel flange plate, while keeping cut surface to get out of the way I-steel 2~3cm of flange plate, must not burn I-steel, finally
Four steel pipe columns on the outside of transverse cuts transom pier again（Left two, pier, right two, pier）Ring flange；The ring flange cutting of transom pier two ends
After complete, four steel pipe columns on the inside of cutting transom pier are first found, then found four steel pipe columns on the outside of cutting transom pier, 1 is cut every time
~2cm, transom pier two ends symmetrically wait height to cut, and allow I-steel uniform settlement into steel pipe column otch, every steel pipe column otch
Highly reach 10cm~20cm and complete to stop cutting, the wherein preferred 10cm of cut height after beam；
4th step, removes D types just beam crossbeam brace：
In skylight point, 10cm × 10cm lumps of wood is completely spread on girder falling, the lumps of wood is fixed on girder falling with iron wire, workman lies
Brace is removed on the lumps of wood, brace moves to both sides, then hangs brace onto ground after dismantling, to prevent bolt from dropping to both wired
Baffle plate is used as in lumps of wood both sides binding 10cm × 10cm lumps of wood of full paving；
5th step, removes D types just beam crossbeam：
Before just beam crossbeam is removed in D types first, bent cap bed die and 10cm × 10cm lumps of wood are plucked out；The dismounting of crossbeam, utilizes skylight
Point construction, when tearing crossbeam open, first skylight point is to unload based on bolt, from span centre toward two ends, first removes connection metal plate, then loosen vertical
Bolt, to prevent during removal bolt, bolt falls into both wired and influences both wired traffic safeties, after removal crossbeam on girder falling
The lumps of wood could remove, after whole vertical bolt loosenesses, then by vertical disassembling bolts, but the two ends each surplus one of every crossbeam
The vertical bolt of root is not unloaded, and is laid down again when the root crossbeam slides, and is taken out crossbeam operation and is completed successively in follow-up skylight point, by two ends
Removed to span centre direction by root；The method that crossbeam is exited from just beam is：Anti-fall back is less than crossbeam bottom, in order to avoid falling the beam phase
Between crossbeam pound girder falling, the instrument used is：It is connected with 1.5T jacks with crossbeam two ends, connecting plate, bracket, the bolt of crossbeam
Come up jack after all coming loose, and crossbeam is put on the lumps of wood on girder falling, then with jack support to job platform, uses crane
Crossbeam is hung out；Crossbeam will prevent D type beams from toppling over when removing in the middle of remaining last two, now jack should all be loosened into use side
Wood takes bearing diagonal at its two ends by D type beam supporting ＆ stablizings；
6th step, hangs out D types just beam longeron：
Crossbeam removes crossbeam as early as possible after disintegrating with longeron, unclamp jack, hang out longeron, and just the longeron of beam removes block circuit 60
Minute, hung out using 100T cranes, just beam longeron is hung out in two times, unclamp side jack and hang out a side girder, then unclamp another
Side jack, hangs out another side girder；
7th step, removes sleeper, H profile steel, girder falling, I-steel：
Using skylight point, the sleeper of steel pipe column branch pier top, H profile steel, I-steel are hung down with crane, by bent cap bottom girder falling
Two H profile steels are removed with jack, and application block point is hung to ground；
8th step, removes steel pipe column buttress：
Using skylight point, fixing bolt on ring flange is first removed, steel pipe column is hauled with crane, then dismantle the angle being connected with pier stud
Steel, finally hangs out steel pipe column buttress.
Part not in the detailed description of the invention is prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable, still, Ying Liao
Solution, it is contemplated that all changes and improvement including all embodiments belonged in this design and invention scope.
Claims (4)
1. a kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is characterized in that：Methods described specifically include as
Lower step：
The first step, removes chamfering scaffold：
Warning is set when removing scaffold first, eye-catching caution notice is hung, forbids non-operator and ground construction personnel
It is current, and there is special messenger to be responsible for warning；Wherein long vertical rod, the dismounting of brace are carried out with two people, it is impossible to separate operaton, when coming off duty
It should check whether firmly, or add interim fixed support, prevent accident；When removing outrigger, steel pipe and fastener had forbidden intrusion both
Wired roadbed, the steel pipe of dismounting is placed in away from roadbed side, is torn open afterwards by first filling from top to bottom, the order first torn open is filled afterwards；Specifically
Dismounting order be：Safety net, bridging, leger, small cross bar, vertical rod, are removed from top to bottom, and a step one is clear, must not use and step on
Step formula is removed, and is forbidden upper and lower while operation；Meeting high wind, rainy weather, it is impossible to carry out outrigger dismounting；The steel pipe of dismounting and buckle
Part classification is stacked, and forbids high-altitude throwing；
Second step, hangs out pavement job platform：
In vertical skylight point job platform is hung out using crane；
D types just beam, drops in the 3rd step：
First in the fulcrum of transom pier two respectively with jack connection ￠ 36mm~just beam is caught 50mm steel wire ropes by D types, uses jack
Steel wire rope is tensed, power is able to eat, jack pocket D types just beam；Then with four welding gun along along the first transverse cuts transom pier in I-steel side
The steel pipe column top ring flange of side four, notes cutting along I-steel flange plate during cutting, while keeping cut surface to get out of the way I-shaped
Steel 2~3cm of flange plate, must not burn I-steel, finally four steel pipe column ring flanges on the outside of transverse cuts transom pier again；Transom pier
After two ends ring flange has been cut, four steel pipe columns on the inside of cutting transom pier are first found, then found four steel on the outside of cutting transom pier
Tubing string, cuts 1~2cm every time, and transom pier two ends symmetrically wait height to cut, allow I-steel uniform settlement into steel pipe column otch,
Every steel pipe column cut height reaches 10cm~20cm and completes to stop cutting after beam；
4th step, removes D types just beam crossbeam brace：
In skylight point, the lumps of wood is completely spread on girder falling, the lumps of wood is fixed on girder falling with iron wire, workman lies on the lumps of wood and torn open
Except brace, brace moves to both sides after dismantling, then hang brace onto ground, to prevent bolt from dropping to both wired sides in full paving
The wooden both sides binding lumps of wood is used as baffle plate；
5th step, removes D types just beam crossbeam：
Before just beam crossbeam is removed in D types first, bent cap bed die and the lumps of wood are plucked out；The dismounting of crossbeam, is constructed using skylight point, tears horizontal stroke open
Liang Shi, first skylight point, from span centre toward two ends, first removes connection metal plate to unload based on bolt, then loosens vertical bolt, to prevent
During removal bolt, bolt falls into both wired and influences both wired traffic safety, the lumps of wood ability after removal crossbeam on girder falling
Remove, after whole vertical bolt loosenesses, then by vertical disassembling bolts, but the two ends of every crossbeam each remain a vertical bolt
Do not unload, laid down again when the root crossbeam slides, take out crossbeam operation and completed successively in follow-up skylight point, from two ends to span centre direction
Removed by root；The method that crossbeam is exited from just beam is：Anti-fall back is less than crossbeam bottom, in order to avoid crossbeam pounds anti-during falling beam
Fall beam, the instrument used is：It is connected with jack with crossbeam two ends, connecting plate, bracket, the bolt of crossbeam are slowly loose after all coming loose
Jack is driven, crossbeam is put on the lumps of wood on girder falling, then with jack support to job platform, is hung out crossbeam with crane；It is horizontal
Beam will prevent D type beams from toppling over when removing in the middle of remaining last two, now should all loosen jack and be taken with the lumps of wood at its two ends
Bearing diagonal is by D type beam supporting ＆ stablizings；
6th step, hangs out D types just beam longeron：
Crossbeam removes crossbeam as early as possible after disintegrating with longeron, unclamp jack, hang out longeron, and just the longeron of beam removes block circuit,
Hung out using crane, just beam longeron is hung out in two times, unclamp side jack and hang out a side girder, then unclamp opposite side jack,
Hang out another side girder；
7th step, removes sleeper, H profile steel, girder falling, I-steel：
Using skylight point, the sleeper of steel pipe column branch pier top, H profile steel, I-steel are hung down with crane, by bent cap bottom girder falling
H profile steel is removed with jack, and application block point is hung to ground；
8th step, removes steel pipe column buttress：
Using skylight point, fixing bolt on ring flange is first removed, steel pipe column is hauled with crane, then dismantle the angle being connected with pier stud
Steel, finally hangs out steel pipe column buttress.
2. the method according to claim 1 for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is characterized in that：It is described
Crane is 100T cranes.
3. the method according to claim 1 for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is characterized in that：It is described
The size of the lumps of wood is 10cm × 10cm.
4. the method according to claim 1 for removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is characterized in that：It is described
The time that circuit is blocked in 6th step is 60 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548953.5A CN107165062B (en) | 2017-07-07 | 2017-07-07 | A method of removing Existing Railway Line gate-type pier capping beam protecting canopy frame |
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|---|---|---|---|
| CN201710548953.5A CN107165062B (en) | 2017-07-07 | 2017-07-07 | A method of removing Existing Railway Line gate-type pier capping beam protecting canopy frame |
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| CN107165062B CN107165062B (en) | 2019-03-12 |
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| CN108868192A (en) * | 2018-07-13 | 2018-11-23 | 中铁六局集团有限公司 | Short distance overcrossing railway both wired transom pier overarm brace Demolition Construction engineering method |
| CN110273385A (en) * | 2019-04-03 | 2019-09-24 | 中铁大桥局武汉桥梁特种技术有限公司 | A kind of across concrete box girder method for dismounting in cross-line hole |
| CN112727132A (en) * | 2020-12-10 | 2021-04-30 | 中铁五局集团建筑工程有限责任公司 | Method for dismantling existing canopy of overhead operation subway station |
| CN113005900A (en) * | 2019-12-20 | 2021-06-22 | 中交第一航务工程局有限公司 | Inverted protection shed and mounting and dismounting method thereof |
| CN113216693A (en) * | 2021-04-09 | 2021-08-06 | 中铁六局集团有限公司 | Construction method for statically dismantling open cut tunnel of up-crossing railway business line |
| CN114457708A (en) * | 2022-02-23 | 2022-05-10 | 浙江交工金筑交通建设有限公司 | Construction method for removing bracket system of widened overpass group of highway |
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| CN113005900A (en) * | 2019-12-20 | 2021-06-22 | 中交第一航务工程局有限公司 | Inverted protection shed and mounting and dismounting method thereof |
| CN112727132A (en) * | 2020-12-10 | 2021-04-30 | 中铁五局集团建筑工程有限责任公司 | Method for dismantling existing canopy of overhead operation subway station |
| CN113216693A (en) * | 2021-04-09 | 2021-08-06 | 中铁六局集团有限公司 | Construction method for statically dismantling open cut tunnel of up-crossing railway business line |
| CN114457708A (en) * | 2022-02-23 | 2022-05-10 | 浙江交工金筑交通建设有限公司 | Construction method for removing bracket system of widened overpass group of highway |
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| CN107165062B (en) | 2019-03-12 |
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