CN106836016A - Steel truss girder bridge repairs linear control method - Google Patents
Steel truss girder bridge repairs linear control method Download PDFInfo
- Publication number
- CN106836016A CN106836016A CN201510990675.XA CN201510990675A CN106836016A CN 106836016 A CN106836016 A CN 106836016A CN 201510990675 A CN201510990675 A CN 201510990675A CN 106836016 A CN106836016 A CN 106836016A
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- steel
- bridge
- main truss
- truss
- truss girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 68
- 239000010959 steel Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000001360 synchronised Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 201000010099 disease Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The present invention relates to a kind of reparation for super life-span riveted truss girder bridge, develop a kind of steel truss girder bridge maintenance linear control method, because all kinds of super all kinds of light maintenances of life-span steel truss girder bridge are continuous, but with the growth of service life, bridge steel structure bearing capacity gradually weakens, corrosion and degree of fatigue are more serious, so more need to thoroughly be repaired to such bridge, formulated " Steel Bridge temporary support → trussed steel beam linear adjustment → main truss rod member replacings → main truss temporarily fixed → bridge deck in length and breadth beam dismounting → main truss it is traversing → bridge deck installation " recovery scenario.To control the reparation of steel truss girder linear, after steel truss girder bridge is moved on into reparation position, the stress of steel main truss is adjusted using many synchronous hydra-ulic jacks, the rod member of steel main truss is substantially at unstress state, to the stressing influence of original component in reduction repair process.
Description
Technical field
The present invention relates to a kind of reparation for super life-span riveted truss girder bridge, develop a kind of steel truss girder bridge and repair linear control
Method processed, with ensure steel truss girder bridge reparation it is linear do not change, the repairing quality so as to ensure riveted truss girder bridge.
Background technology
China has built some steel truss girder bridges in 20 beginnings of the century, and the service life of some bridges has exceeded a century, many at present
Number has turned into historical relic's protection bridge.Since recent decades, old all kinds of light maintenances of steel truss girder bridge constantly, but with using the longevity
The growth of life, bridge steel structure bearing capacity gradually weakens, and corrosion and degree of fatigue are more serious, so the bridge need to be carried out more
Thoroughly repair.Used as historical relic's protection bridge, repair process need to ensure the features such as original agent structure, the bridge linear of bridge,
Because these bridges are most in urban district prosperity location, should not be repaired in former Bridge position.Therefore, bridge main need to ensured
Body it is linear it is constant in the state of, changed using the advanced Steel Bridge recovery technique component serious to disease in factory building or
Repair, reach " restoring the old as the old " and repair theory.Because Steel Bridge is by prolonged operation, and in super life-span use state,
The force status of all kinds of components of steel truss girder is there occurs great variety, all kinds of components can not have been calculated using finite element analysis
Stressing conditions, so it is particularly critical to keep linear and stress not change during bridge maintaining.The steel of exploitation
Truss bridge repairs linear control technology can then ensure that the linear state of bridge does not change, remediation efficiency is high, good economy performance
Feature.
The content of the invention
Purpose of design：The weak point in background technology is avoided, a kind of steel truss girder bridge maintenance linear control method is designed, with
Ensure steel truss girder bridge reparation it is linear do not change, the repairing quality so as to ensure steel truss girder bridge.
Design：In order to realize above-mentioned purpose of design.The present invention is adopted in design, Steel Bridge movement to after repairing factory building
With temporarily " the serious rod member replacing → main truss of Steel Bridge temporary support → trussed steel beam linear adjustment → main truss corrosion fixes → bridge deck
In length and breadth beam dismounting → main truss it is traversing → bridge deck installs " scheme, concrete scheme is：(1) after steel truss girder bridge moves on to maintenance place,
According to the theory support counter-force numerical value for calculating（See theory support counter-force computation model Fig. 7）, it is very heavy using many synchronous hydraulics
Push up and the stress of steel main truss be adjusted, manufacture linear closest so as to reach the linear of bridge repair process and its,
The rod member of steel main truss is set to be substantially at unstress state, to the stressing influence of original component in reduction repair process.(2) it is to avoid
Bridge reparation causes nodal shift or the disengaging of main truss, when main truss rod member is changed, using the outer of first dismounting side steel main truss rod member
Side part, then installs the part of brand-new, then the method for changeing the inner side part of main truss rod member.
Compared with background technology, one is the stress that ensure that original component in disease bridge repair process to the present invention,
The technological sciences rationally, by multi-point support force bearing adjustment, ensure that the linear and stress of Steel Bridge repair process, enter
And improve the repairing quality of riveted truss girder；Two is the scheme that steel girder member bar replaces side using dismounting side, it is ensured that steel
The integrated connection of the agent structure of bridge, it is possible to decrease the potential safety hazard of work progress.
Brief description of the drawings
Fig. 1 is that steel truss girder bridge repairs linear control technology implementation total figure.
Fig. 2 is the specific steps that steel truss girder bridge repairs linear control technology；State 1 is steel truss girder maintenance in wherein Fig. 2-1
The schematic diagram of support, state 2-2a is the schematic diagram of steel truss girder temporary support, and state 2-2b is what steel truss girder temporary support was reinforced
Schematic diagram, the schematic diagram that state 2-3 is changed for steel girder member bar, Fig. 2-4 be in Fig. 2-3 A-A to cross section structure diagram.
Fig. 3 and Fig. 4 are to change sequential schematic.
Fig. 5-Figure 10 is that truss bridge repairs linear control technology picture schematic diagram.
Specific embodiment
Embodiment 1：Referring to the drawings 2-1 to Fig. 5.State 1 is the schematic diagram of steel truss girder maintaining support, state 2- in Fig. 2-1
2a is the schematic diagram of steel truss girder temporary support, and state 2-2b is the schematic diagram that steel truss girder temporary support is reinforced, and state 2-3 is steel truss
The schematic diagram that beam column part is changed.Steel truss girder bridge repairs linear control method：
1st step：After steel truss girder bridge moves on to maintenance place, the ground sample of steel truss girder bridge is released in factory building, then in main truss node position
Install multiple support piers.
2nd step：It is linear linear consistent with real bridge like state after Steel Bridge temporary support to make, arrange synchronous on support pier
Hydraulic jack, for adjusting the linear of main truss, is shown in Fig. 5.
3rd step：After steel truss girder bridge is moved into factory building, slowly it is placed on support pier, sees Fig. 6.
4th step：Adjustment hydraulic jack, makes the stress size of each strong point identical with the theoretical stress of the point, it is ensured that main
Boom part is substantially at unstress state, sees Fig. 7 and Fig. 8.
5th step：When main truss rod member is changed, the outside part of side steel main truss rod member is first removed, then install the zero of brand-new
Part, then the inner side part of main truss rod member is changed, see Fig. 9.
6th step：Steel main truss temporary support is installed, monolithic steel main truss is formed rock-steady structure.
7th step：Steel truss girder lateral, stull and bridge deck are removed, the two panels steel main truss of steel truss girder is kept completely separate.
8th step：Monolithic steel main truss is traversing to carry out pushing tow using 5 synchronous hydra-ulic jacks, and main truss is laterally moved to setting position
Afterwards, its holding state is adjusted, then fixed support and support pier is welded, Figure 10 is seen.
9th step：The strong point stressing conditions of two panels steel main truss are adjusted, then the spacing to top-bottom chord is measured.
10th step：Crossbeam unit and bridge floor Slab element are installed successively in the middle of from bridge to two ends, the reparation of steel truss girder is completed
Work.
It is to be understood that：Although above-described embodiment is contrasted to mentality of designing of the invention, detailed word is retouched
State, but these word descriptions, simply to the simple text description of mentality of designing of the present invention, rather than to mentality of designing of the present invention
Limitation, any combination without departing from mentality of designing of the present invention, increase or change, each fall within protection scope of the present invention.
Claims (2)
1. a kind of steel truss girder bridge repairs linear control method, it is characterized in that：(1) after steel truss girder bridge moves on to maintenance place, according to meter
The theory support counter-force numerical value for calculating, is adjusted using many synchronous hydra-ulic jacks to the stress of steel main truss, so that
Reach the linear of bridge repair process and manufacture linear closest with it, the rod member of steel main truss is substantially at unstress state,
To the stressing influence of original component in reduction repair process；(2) to avoid bridge reparation from causing nodal shift or the disengaging of main truss,
When main truss rod member is changed, using the outside part for first removing side steel main truss rod member, then the part of brand-new is installed, then change master
The method of the inner side part of boom part.
2. steel truss girder bridge according to claim 1 repairs linear control method, it is characterized in that：
1st step：After steel truss girder bridge moves on to maintenance place, the ground sample of steel truss girder bridge is released in factory building, then in main truss node position
Install multiple support piers；
2nd step：It is linear linear consistent with real bridge like state after Steel Bridge temporary support to make, synchronous hydraulic is arranged on support pier
Jack, for adjusting the linear of main truss；
3rd step：After steel truss girder bridge is moved into factory building, slowly it is placed on support pier；
4th step：Adjustment hydraulic jack, makes the stress size of each strong point identical with the theoretical stress of the point, it is ensured that main truss bar
Part is substantially at unstress state；
5th step：When main truss rod member is changed, the outside part of side steel main truss rod member is first removed, then the part of brand-new is installed, then
Change the inner side part of main truss rod member；
6th step：Steel main truss temporary support is installed, monolithic steel main truss is formed rock-steady structure；
7th step：Steel truss girder lateral, stull and bridge deck are removed, the two panels steel main truss of steel truss girder is kept completely separate；
8th step：Monolithic steel main truss is traversing to carry out pushing tow using multiple synchronous hydra-ulic jacks, after main truss is laterally moved to setting position,
Its holding state is adjusted, then fixed support and support pier is welded；
9th step：The strong point stressing conditions of two panels steel main truss are adjusted, then the spacing to top-bottom chord is measured；
10th step：Crossbeam unit and bridge floor Slab element are installed successively in the middle of from bridge to two ends, the repair of steel truss girder is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990675.XA CN106836016B (en) | 2015-12-24 | 2015-12-24 | Steel truss girder bridge repairs linear control method |
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| CN201510990675.XA CN106836016B (en) | 2015-12-24 | 2015-12-24 | Steel truss girder bridge repairs linear control method |
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| CN106836016B CN106836016B (en) | 2018-10-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107391811A (en) * | 2017-06-30 | 2017-11-24 | 北方工业大学 | A kind of steel truss girder bridge rod member checking method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913315A (en) * | 1995-06-30 | 1997-01-14 | Mamoru Tsuchie | Steel bridge |
| RU2304656C1 (en) * | 2006-02-03 | 2007-08-20 | Открытое акционерное общество "Мостотрест" (ОАО "Мостотрест") | Method for lattice span structure disassembling by span structure division into three-dimensional blocks |
| CN101122118A (en) * | 2007-08-31 | 2008-02-13 | 西南交通大学 | Method for reinforcing and modifying through steel truss bridge |
| CN101935987A (en) * | 2010-08-27 | 2011-01-05 | 中交一公局桥隧工程有限公司 | Construction method for integrally sliding large-span steel pipe arch of curved bridge |
| CN104818666A (en) * | 2015-04-29 | 2015-08-05 | 镇江长城重工科技有限公司 | Large-span steel temporary bridge |
-
2015
- 2015-12-24 CN CN201510990675.XA patent/CN106836016B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913315A (en) * | 1995-06-30 | 1997-01-14 | Mamoru Tsuchie | Steel bridge |
| RU2304656C1 (en) * | 2006-02-03 | 2007-08-20 | Открытое акционерное общество "Мостотрест" (ОАО "Мостотрест") | Method for lattice span structure disassembling by span structure division into three-dimensional blocks |
| CN101122118A (en) * | 2007-08-31 | 2008-02-13 | 西南交通大学 | Method for reinforcing and modifying through steel truss bridge |
| CN101935987A (en) * | 2010-08-27 | 2011-01-05 | 中交一公局桥隧工程有限公司 | Construction method for integrally sliding large-span steel pipe arch of curved bridge |
| CN104818666A (en) * | 2015-04-29 | 2015-08-05 | 镇江长城重工科技有限公司 | Large-span steel temporary bridge |
Non-Patent Citations (3)
| Title |
|---|
| 李金锁: "既有罗湖铁路钢桥整桥移梁施工", 《国防交通工程与技术》 * |
| 王伟祖: "广州市海珠桥中跨钢梁整节制作技术", 《山西建筑》 * |
| 王倩: "具有历史文物价值的铆接钢桁架桥大修探讨", 《城市道桥与防洪》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107391811A (en) * | 2017-06-30 | 2017-11-24 | 北方工业大学 | A kind of steel truss girder bridge rod member checking method and system |
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| CN106836016B (en) | 2018-10-09 |
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