CN107165062B - A method of removing Existing Railway Line gate-type pier capping beam protecting canopy frame - Google Patents
A method of removing Existing Railway Line gate-type pier capping beam protecting canopy frame Download PDFInfo
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- CN107165062B CN107165062B CN201710548953.5A CN201710548953A CN107165062B CN 107165062 B CN107165062 B CN 107165062B CN 201710548953 A CN201710548953 A CN 201710548953A CN 107165062 B CN107165062 B CN 107165062B
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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
Abstract
A method of removing Existing Railway Line gate-type pier capping beam protecting canopy frame, it is related to construction of railways field, the present invention is slotted using steel pipe column, allowing D type, just beam stringer is fallen into the steel pipe column slot of opening, to which protecting canopy frame be reduced, to remove D type just beam crossbeam, the dismounting of crossbeam brace provides working space, not only it ensure that Existing Railway Line safety but also solved the problems, such as that protecting canopy frame bears bent cap and pushes down and can not take out, the present invention is after transom pier Coping Construction is complete, guarantee in the case where Existing Railway Line safety to the D type of bent cap lower part just beam, steel pipe column, I-steel, the progress safety such as scaffold, quickly remove, it is suitble to large-scale promotion and application.
Description
[technical field]
The present invention relates to construction of railways fields, and in particular to a kind of to remove Existing Railway Line gate-type pier capping beam protecting canopy frame
Method.
[background technique]
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 mentions
High quality, rapid expansion transport capacity, improves rapidly equipment.The year two thousand twenty is expected, china railway revenue kilometres reach 12
Ten thousand kilometers, main busy trunk lines realization separates lines for passenger and freight, and complex line rate and electrochemical rate respectively reach 50% and 60% or more, and transport capacity is full
Sufficient national economy and social development needs, and major technique equipment reaches or approaches advanced international standards.Railway is in actual construction
In the process, especially larger in the special region difficulty of construction of some environment, working security is also poor, special with white mountain village two-wire
Circuit bridge construction for, white mountain village two-wire grand bridge overall length 3612.179m, wherein 37#, 38# pier be transom pier box beam on across
Existing 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# gate-type pier capping beam is designed as post stretching C50 prestressed reinforced concrete, and sectional dimension is 3 × 2.5 meters, 37# pier capping beam bottom away from
Both wired rail level clear height was 7.982m；38# pier capping beam bottom is 8.144m away from both wired rail level clear height.Because of white mountain village two-wire grand bridge
Across existing Hunan and Guangxi railway on 37#, 38# transom pier, bent cap weighs 480 tons, and existing Bailey beam and rice cannot be used by being limited by clear height
The construction of steelframe sky, difficulty of construction and very risky, for this purpose, applicant has investigated the construction party of a kind of both wired transom pier bent cap
Method, but after the completion of transom pier Coping Construction, need in the case where guaranteeing Existing Railway Line safety to the D type of bent cap lower part just
Beam, steel pipe column, I-steel, scaffold etc. are removed, then how to provide the relatively reasonable construction method of one kind also seems have
It is particularly important.
[summary of the invention]
To overcome deficiency present in background technique, it is anti-that the present invention provides a kind of dismounting Existing Railway Line gate-type pier capping beams
The method for protecting frame, the present invention guarantee in the case where Existing Railway Line safety after transom pier Coping Construction is complete to bent cap lower part
D type just the progress such as beam, steel pipe column, I-steel, scaffold safety, quickly remove.
To realize that goal of the invention as described above, the present invention use technical solution as described below:
A method of Existing Railway Line gate-type pier capping beam protecting canopy frame being removed, the method specifically comprises the following steps:
The first step removes chamfering scaffold:
Setting warning, hangs eye-catching caution notice, forbids non-operator and ground construction when removing scaffold first
Personnel are current, and have special messenger to be responsible for warning；Wherein long upright bar, the dismounting of brace carry out with two people, are unable to separate operaton, under
It should check whether when class securely, or add and be fixed temporarily support, prevent accident；When removing outrigger, steel pipe and fastener are forbidden to invade
Enter existing line base, the steel pipe of dismounting is placed in far from roadbed side, tears open afterwards by first filling from top to bottom, fill the sequence first torn open afterwards；
Specific dismounting sequence are as follows: safety net, bridging, leger, small cross bar, upright bar are removed from top to bottom, and a step one is clear, must not be adopted
It is removed with stepping type, upper and lower operation simultaneously is not allowed；High wind, rainy weather are being met, not can be carried out outrigger dismounting；The steel pipe of disassembly
Classify with fastener and stack, forbids high-altitude throwing；
Second step hangs out pavement job platform:
Job platform is hung out using crane in vertical skylight point；
D type just beam drops in third step:
In two fulcrum of transom pier, respectively with jack connection ￠ 36mm~50mm wirerope, by D type, just beam is caught first, is used
Jack tenses wirerope, is able to eat power, jack pocket D type just beam；Then with four welding gun along I-steel side elder generation transverse cuts gate-type
Four steel pipe column top ring flanges on the inside of pier, when cutting, pay attention to cutting along I-steel flange plate, while cut surface being kept to get out of the way
I-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；Door
It after formula pier both ends ring flange has been cut, first stands to four steel pipe columns on the inside of cutting transom pier, then stands on the outside of cutting transom pier four
Root steel pipe column cuts 1~2cm every time, and symmetrically equal height is cut at transom pier both ends, allows I-steel uniform settlement to steel pipe column notch
In, every steel pipe column cut height reaches 10cm~20cm and completes to stop cutting after falling beam；
4th step removes D type 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, worker lies in the lumps of wood
Upper dismounting brace, brace, which is dismantled, to be moved back to two sides, then hangs brace onto ground, both wired in Man Pu to prevent bolt from dropping to
The lumps of wood two sides binding lumps of wood as baffle；
5th step removes D type just beam crossbeam:
Before just beam crossbeam is removed in D type first, bent cap bed die and the lumps of wood are plucked out；The dismounting of crossbeam is constructed using skylight point,
When tearing crossbeam open, first skylight point is to unload based on bolt, from span centre toward both ends, first removes connection metal plate, then loosen vertical bolt, is
When preventing removal bolt, bolt falls into both wired and influences both wired traffic safeties, the lumps of wood after removal crossbeam on girder falling
It could remove, whole vertical bolt looseness and then by vertical disassembling bolts, but each surplus one of the both ends of every crossbeam are vertical
Bolt does not unload, and lays down again when root crossbeam sliding, takes out crossbeam operation and complete successively in subsequent skylight point, from both ends to span centre
It is removed by root in direction；The method that crossbeam is exited from just beam are as follows: anti-fall back is lower than crossbeam bottom, in order to avoid crossbeam during falling beam
Girder falling is pounded, the tool used is: being connect with jack with crossbeam both ends, connecting plate, bracket, the bolt of crossbeam are slow after all coming loose
It is slow to unclamp jack, crossbeam is put on the lumps of wood on girder falling, then in jack support to job platform, is hung crossbeam with crane
Out；Crossbeam remove two last to surplus centre when to prevent D type beam from toppling over, jack should all be loosened at this time with the lumps of wood its two
Bearing diagonal is taken by D type beam supporting & stablizing in end；
6th step hangs out D type just beam stringer:
Crossbeam and stringer remove crossbeam after disintegrating as early as possible, unclamp jack, hang out stringer, and just the stringer of beam removes blockade line
Road is hung out using crane, and just beam stringer is hung out in two times, is unclamped side jack and is hung out a side girder, unclamps again the other side and fall
Chain 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
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, hauls steel pipe column with crane, then dismantled and connect with pier stud
Angle steel finally hangs out steel pipe column buttress.
The method of the dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, the crane are 100T crane.
The method of the described dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, the size of the lumps of wood be 10cm ×
10cm。
The method of the described dismounting Existing Railway Line gate-type pier capping beam protecting canopy frame, block in the 6th step route when
Between be 60 minutes.
Using technical solution 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 use steel pipe
Column fluting, allowing D type, just beam stringer is fallen into the steel pipe column slot of opening, so that protecting canopy frame be reduced, to remove D type, just beam is horizontal
Beam, the dismounting of crossbeam brace provide working space, not only ensure that Existing Railway Line safety but also have solved protecting canopy frame and have born bent cap
Push down the problem that can not be taken out, the present invention guarantees in the case where Existing Railway Line safety after transom pier Coping Construction is complete to lid
The D type of beam lower part just the progress such as beam, steel pipe column, I-steel, scaffold safety, quickly remove, be suitble on a large scale promote and
Using.
[specific embodiment]
The present invention can be explained in more detail by the following examples, the invention is not limited to the following examples；
A kind of method for removing Existing Railway Line gate-type pier capping beam protecting canopy frame of the present invention, the method are specifically wrapped
Include following steps:
The first step removes chamfering scaffold:
Setting warning, hangs eye-catching caution notice, forbids non-operator and ground construction when removing scaffold first
Personnel are current, and have special messenger to be responsible for warning；Wherein long upright bar, the dismounting of brace carry out with two people, are unable to separate operaton, under
It should check whether when class securely, or add and be fixed temporarily support, prevent accident；When removing outrigger, steel pipe and fastener are forbidden to invade
Enter existing line base, the steel pipe of dismounting is placed in far from roadbed side, tears open afterwards by first filling from top to bottom, fill the sequence first torn open afterwards；
Specific dismounting sequence are as follows: safety net, bridging, leger, small cross bar, upright bar are removed from top to bottom, and a step one is clear, must not be adopted
It is removed with stepping type, upper and lower operation simultaneously is not allowed；The weathers such as high wind, rain are being met, not can be carried out outrigger dismounting；The steel pipe of disassembly
Classify with fastener and stack, forbids high-altitude throwing；
Second step hangs out pavement job platform:
Job platform is hung out using 100T crane in vertical skylight point；
D type just beam drops in third step:
First two fulcrum three of transom pier divide one across, 2/3rds across place, respectively with a 10T jack connection ￠ 36mm~
By D type, just beam is caught 50mm wirerope, is tensed wirerope with jack, is able to eat power, jack pocket D type just beam；Then with four weldering
Rifle pushes up ring flange along four steel pipe columns (two, left pier, two, right pier) on the inside of I-steel side elder generation transverse cuts transom pier, when cutting
Pay attention to cutting along I-steel flange plate, while cut surface being kept to get out of the way I-steel 2~3cm of flange plate, must not burn I-shaped
Steel, finally four steel pipe column (two, left pier, two, right pier) ring flanges on the outside of transverse cuts transom pier again；Two end flanges of transom pier
After disk has been cut, first stand to four steel pipe columns on the inside of cutting transom pier, then stand to four steel pipe columns on the outside of cutting transom pier, every time
1~2cm is cut, transom pier both ends symmetrically wait height to cut, allow I-steel uniform settlement into steel pipe column notch, every steel pipe column
Cut height reaches 10cm~20cm and completes to stop cutting after falling beam, wherein the preferred 10cm of cut height；
4th step removes D type 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, work
People lies in and removes brace on the lumps of wood, and brace, which is dismantled, to be moved back to two sides, then hangs brace onto ground, to prevent bolt from dropping to both
Wired lumps of wood two sides in full paving bundle 10cm × 10cm lumps of wood as baffle；
5th step removes D type just beam crossbeam:
Before just beam crossbeam is removed in D type first, bent cap bed die and 10cm × 10cm lumps of wood are plucked out；The dismounting of crossbeam utilizes
The construction of skylight point, when tearing crossbeam open, first skylight point is to unload based on bolt, from span centre toward both ends, first removes connection metal plate, then loosen
Vertical bolt, when to prevent removal bolt, bolt falls into both wired and influences both wired traffic safeties, anti-fall after removal crossbeam
The lumps of wood on beam could be removed, whole vertical bolt looseness and then by vertical disassembling bolts, but the both ends of every crossbeam are each
A surplus vertical bolt does not unload, and lays down again when root crossbeam sliding, takes out crossbeam operation and complete successively in subsequent skylight point, by
It is removed to span centre direction by root at both ends；The method that crossbeam is exited from just beam are as follows: anti-fall back is lower than crossbeam bottom, in order to avoid falling
Crossbeam pounds girder falling during beam, and the tool used is: connect with crossbeam both ends with 1.5T jack, the connecting plate of crossbeam, bracket,
Bolt comes up jack after all coming loose, and crossbeam is put on the lumps of wood on girder falling, then in jack support to job platform, uses
Crane hangs out crossbeam；Crossbeam will prevent D type beam from toppling over when removing two last to surplus centre, at this time should all loosen jack
Bearing diagonal is taken by D type beam supporting & stablizing at its both ends with the lumps of wood；
6th step hangs out D type just beam stringer:
Crossbeam and stringer remove crossbeam after disintegrating as early as possible, unclamp jack, hang out stringer, and just the stringer of beam removes blockade line
Road 60 minutes, is hung out using 100T crane, and just beam stringer is hung out in two times, is unclamped side jack and is hung out a side girder, then pine
Other side jack is opened, another side girder is hung out；
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, hauls steel pipe column with crane, then dismantled and connect with pier stud
Angle steel finally hangs out steel pipe column buttress.
Part not in the detailed description of the invention is the prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable, still, Ying Liao
Solution, the present invention is intended to include all changes and improvement that all belong to the embodiment in this design and invention scope.
Claims (4)
1. it is a kind of remove Existing Railway Line gate-type pier capping beam protecting canopy frame method, it is characterized in that: the method specifically include as
Lower step:
The first step removes chamfering scaffold:
Setting warning, hangs eye-catching caution notice, forbids non-operator and ground construction personnel when removing scaffold first
It is current, and there is special messenger to be responsible for warning；Wherein long upright bar, the dismounting of brace carry out with two people, are unable to separate operaton, when coming off duty
It should check whether securely, or add and be fixed temporarily support, prevent accident；When removing outrigger, steel pipe and fastener had forbidden intrusion both
Wired roadbed, the steel pipe of dismounting are placed in far from roadbed side, tear open afterwards by first filling from top to bottom, fill the sequence first torn open afterwards；Specifically
Dismounting sequence are as follows: safety net, bridging, leger, small cross bar, upright bar are removed from top to bottom, and a step one is clear, must not be used and be stepped on
Step formula is removed, and upper and lower operation simultaneously is not allowed；High wind, rainy weather are being met, not can be carried out outrigger dismounting；It the steel pipe of disassembly and buckles
Part classification is stacked, and high-altitude throwing is forbidden；
Second step hangs out pavement job platform:
Job platform is hung out using crane in vertical skylight point；
D type just beam drops in third step:
In two fulcrum of transom pier, respectively with jack connection ￠ 36mm~50mm wirerope, by D type, just beam is caught first, uses jack
Wirerope is tensed, is able to eat power, jack pocket D type just beam；Then with four welding gun along I-steel side elder generation transverse cuts transom pier
The steel pipe column top ring flange of side four, when cutting, pay attention to cutting along I-steel flange plate, while cut surface being kept 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
It after both ends ring flange has been cut, first stands to four steel pipe columns on the inside of cutting transom pier, then stands to four steel on the outside of cutting transom pier
Tubing string cuts 1~2cm every time, and transom pier both ends symmetrically wait height to cut, allow I-steel uniform settlement into steel pipe column notch,
Every steel pipe column cut height reaches 10cm~20cm and completes to stop cutting after falling beam；
4th step removes D type 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, worker lies on the lumps of wood and tears open
Except brace, brace, which is dismantled, to be moved back to two sides, then hangs brace onto ground, to prevent bolt from dropping to both wired sides in full paving
The wooden two sides binding lumps of wood is as baffle；
5th step removes D type just beam crossbeam:
Before just beam crossbeam is removed in D type first, bent cap bed die and the lumps of wood are plucked out；The dismounting of crossbeam is constructed using skylight point, tears cross open
Liang Shi, first skylight point is to unload based on bolt, from span centre toward both ends, connection metal plate is first removed, then loosen vertical bolt, to prevent
When removal bolt, bolt falls into both wired and influences both wired traffic safeties, the lumps of wood ability after removal crossbeam on girder falling
It removes, whole vertical bolt looseness and then by vertical disassembling bolts, but the both ends of every crossbeam each remain a vertical bolt
It does not unload, is laid down again when root crossbeam sliding, take out crossbeam operation and completed successively in subsequent skylight point, from both ends to span centre direction
It is removed by root；The method that crossbeam is exited from just beam are as follows: anti-fall back be lower than crossbeam bottom, in order to avoid during falling beam crossbeam pound it is anti-
Beam is fallen, the tool used is: being connect with jack with crossbeam both ends, connecting plate, bracket, the bolt of crossbeam are slowly loose after all coming loose
Jack is opened, crossbeam is put on the lumps of wood on girder falling, then in jack support to job platform, is hung out crossbeam with crane；It is horizontal
Beam will prevent D type beam from toppling over when removing two last to surplus centre, should all loosen jack taken with the lumps of wood at its both ends at this time
Bearing diagonal is by D type beam supporting & stablizing；
6th step hangs out D type just beam stringer:
Crossbeam and stringer remove crossbeam after disintegrating as early as possible, unclamp jack, hang out stringer, and just the stringer of beam removes block route,
Hung out using crane, just beam stringer is hung out in two times, and it unclamps side jack and hangs out a side girder, unclamp again other 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, hauls steel pipe column with crane, then dismantle the angle connecting 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: described
Crane is 100T crane.
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: 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: described
The time that route is blocked in 6th step is 60 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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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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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| CN110273385B (en) * | 2019-04-03 | 2021-03-02 | 中铁大桥局武汉桥梁特种技术有限公司 | Method for dismantling cross-line hole cross-concrete box girder |
| 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 |
| CN112727132B (en) * | 2020-12-10 | 2022-11-08 | 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 |
| 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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| CN201671062U (en) * | 2010-05-19 | 2010-12-15 | 中铁二十局集团有限公司 | D-type temporary beam for construction of dual-line portal type pier cap beam spanning existing line |
| CN101838968B (en) * | 2010-05-19 | 2011-06-29 | 中铁二十局集团有限公司 | Double track bridge construction process crossing existing railway operational lines |
| CN203487475U (en) * | 2013-10-11 | 2014-03-19 | 中铁一局集团有限公司 | Line suspending and reinforcing structure for existing line jacking bridge and culvert construction |
| CN104480868B (en) * | 2014-12-13 | 2016-06-22 | 中铁十九局集团第二工程有限公司 | On tear beam method open across the highway bridge of railway in operation |
| KR20160004190A (en) * | 2015-04-13 | 2016-01-12 | 고재용 | Drain pipeline system useful in a bridge |
| CN205443948U (en) * | 2016-01-05 | 2016-08-10 | 中铁十六局集团第四工程有限公司 | On stride electric Railway steel bearing structure and synthesize and to prevent electric installation |
| CN205775880U (en) * | 2016-07-01 | 2016-12-07 | 中铁二十局集团市政工程有限公司 | Across the most wired steel bent cap lifting construction structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108868192B (en) * | 2018-07-13 | 2020-07-10 | 中铁六局集团有限公司 | Construction method for dismantling close-distance over-railway existing line gate-type pier beam support |
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| CN107165062A (en) | 2017-09-15 |
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