CN110172925A - A kind of steel box-girder or the steel case of adjusting cornices the easy device and installation method of absolute altitude - Google Patents
A kind of steel box-girder or the steel case of adjusting cornices the easy device and installation method of absolute altitude Download PDFInfo
- Publication number
- CN110172925A CN110172925A CN201910532193.8A CN201910532193A CN110172925A CN 110172925 A CN110172925 A CN 110172925A CN 201910532193 A CN201910532193 A CN 201910532193A CN 110172925 A CN110172925 A CN 110172925A
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- Prior art keywords
- steel
- girder
- absolute altitude
- box
- steel box
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 263
- 239000010959 steel Substances 0.000 title claims abstract description 263
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement 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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
It cornices the easy device and installation method of absolute altitude the present invention relates to a kind of adjusting steel box-girder or steel case, easy device includes two sets of jack, two root long I-steel, two short I-steel, cranes, crane, which is sling absolute altitude steel box-girder to be regulated and is tightly attached to, has fixed steel box-girder, and absolute altitude is lower than fixed steel box-girder, and every root long I-steel and a short I-steel are welded into a L-type I-steel；The long I-steel end of two L-type I-steel is respectively welded on absolute altitude steel box-girder to be regulated, and two sets of jack are individually positioned in and have fixed on steel box-girder, and every set jack is located at below the short I-steel of L-type I-steel.Manufacturing procedure of the present invention is simple, it is corniced by jack stand steel box-girder or steel case, achieve the purpose that adjustment control steel box-girder or steel case cornice and splice elevation, on-site construction operations are simple and convenient, securely and reliably, it can be used in turn, and people, material, machine cost input greatly reduce, save the cost, and be easy to cornice when splicing in steel box-girder or steel case and adjust elevation location.
Description
Technical field:
The present invention relates to science of bridge building fields, relate generally to the adjusting of steel box-girder absolute altitude, and in particular to a kind of adjusting steel box-girder
Or steel case cornices the easy device and installation method of absolute altitude.
Background technique:
Currently, needing to carry out plane before bridge steel box girder individual cell assembly welding and elevation being accurately positioned.Conventional method
Multiple jack to be arranged in steel box-girder bottom, construction personnel gets into the steel case in half vacant state after slinging steel box-girder
Steel box-girder each point absolute altitude is manually adjusted using screw jack or hydraulic jack below beam, each fulcrum must have a behaviour
Make personnel according to the command operation jack of survey crew, steel box-girder could be adjusted in place after duplicate measurements adjustment repeatedly.Behaviour
When making jack, operator need to enter lifting region high altitude operation, and there are construction risks, and Pass line adjustment difficulty is larger, no
It is easy to control, meanwhile, adjustment needs multiple jack and operator, and people, material, machine cost are excessive, violate green construction principle.
Summary of the invention:
The purpose of the present invention is to solve in steel box girder assembling welding process, there are larger safety is hidden by constructing operation personnel
Suffer from, Pass line adjustment control is not easy, and the problems such as people, material, excessive machine cost input, provides a kind of adjusting steel box-girder or steel case is chosen
The easy device and installation method of eaves absolute altitude are corniced by steel box-girder or steel case that L-type I-steel is welded on to absolute altitude to be adjusted
On, then give L-type I-steel to apply active force with jack, it cornices absolute altitude so as to adjust steel box-girder or steel case.Entire steel box-girder or
Steel case Pass line adjustment process of cornicing is simple to operate, and operating personnel station is constructed comparatively safe, simultaneously on steel box-girder top plate
People, material, machine cost input greatly reduce.
The technical proposal for solving the technical problem of the invention is:
A kind of steel box-girder or the steel case of adjusting cornices the easy device of absolute altitude, including two sets of jack, two root long I-steel, two
The short I-steel of root, crane, crane, which is sling absolute altitude steel box-girder to be regulated and is tightly attached to, has fixed steel box-girder, and absolute altitude is lower than fixing
Steel box-girder, it is characterised in that: every root long I-steel and a short I-steel are welded into a L-type I-steel；Two L-type I-shapeds
The long I-steel end of steel is respectively welded on absolute altitude steel box-girder to be regulated, and two sets of jack are individually positioned in and have fixed steel box-girder
On, and every set jack is located at below the short I-steel of L-type I-steel.
The long I-steel length should be greater than very heavy heights of roofs, and bond length should be able to meet jack active face width.
The L-type I-steel should be able to bear the active force of jack application without damaging.
Corniced the installation method of the easy device of absolute altitude using above-mentioned adjusting steel box-girder or steel case, it is characterised in that by with
Lower step carries out: step 1, crane are fixed after lifting side steel box-girder to design position and absolute altitude；Step 2 rises
Heavy-duty machine other side absolute altitude steel box-girder to be regulated or steel case are corniced sling to fixed steel box-girder and be close to, other side absolute altitude waits adjusting
Section steel box-girder or the steel case absolute altitude that cornices slightly below have fixed steel box-girder；Step 3, absolute altitude steel box-girder to be regulated or steel in the other side
A L-type I-steel is respectively welded at case both ends along longitudinal direction of cornicing, and the long I-steel end of two L-type I-steel is respectively welded at separately
Side absolute altitude steel box-girder to be regulated or steel case cornice on top plate, and two short I-steel, which extend to, have been fixed above steel box-girder；Step 4,
A jack is respectively placed immediately below each short I-steel of L-type I-steel for having fixed steel box-girder, passes through two jack point
Other to apply active force to two short I-steel, adjustment other side absolute altitude steel box-girder to be regulated or steel case cornice absolute altitude；Step 5 is used
Guiding ruler, which examines two sides steel box-girder or fix steel box-girder and steel case, to cornice after seam crossing flatness meets design requirement, with several bands
Arc notch steel plate is by two sides steel box-girder or has fixed steel box-girder and cornices with steel case and is welded and fixed, band arc notch steel plate edge
Vertical bridge is arranged to continuous；Step 6 can remove crane, two L-type I-shapeds after the completion of the welding of whole arc notch steel plates
Steel and jack, are used in turn.
The notch size with arc notch steel plate should be able to meet two sides steel box-girder longitudinal seam welding space.
The band arc notch steel plate arrangement spacing is 50cm.
Manufacturing procedure of the present invention is simple, is corniced by jack stand steel box-girder or steel case, reaches adjustment control steel box-girder
Or steel case cornices and splices the purpose of elevation, on-site construction operations are simple and convenient, securely and reliably, can be used in turn, and people, material, machine
Cost input greatly reduces, save the cost, and is easy to cornice when splicing in steel box-girder or steel case and adjusts elevation location.
Detailed description of the invention:
Fig. 1 is the use schematic diagram that apparatus of the present invention are used to adjust steel box-girder absolute altitude.
Fig. 2 is band arc notch steel plain layout drawing of the invention.
Fig. 3 be apparatus of the present invention be used for adjust steel case cornice absolute altitude use schematic diagram.
Specific embodiment:
The present invention is described in detail with reference to the accompanying drawing:
As shown in Figure 1, the present invention adjusts the easy device of steel box-girder absolute altitude, including two sets of jack 2, two root long I-shapeds
Steel, two short I-steel, crane 3, crane 3, which is sling absolute altitude steel box-girder to be regulated and is tightly attached to, has fixed steel box-girder, and absolute altitude
Slightly below fixed steel box-girder, it is characterised in that: every root long I-steel and a short I-steel are welded into a L-type I-steel 1；
The long I-steel end of two L-type I-steel 1 is respectively welded on absolute altitude steel box-girder to be regulated, and two sets of very heavy 2 tops are placed respectively
On having fixed steel box-girder, and every set jack 2 is located at below the short I-steel of L-type I-steel 1.By left side steel box-girder lift to
It is fixed after design position and absolute altitude, right side steel box-girder is sling to left side steel box-girder and is close to, absolute altitude is slightly below left side
Steel box-girder, by the long I-steel end of two L-type I-steel 1 respectively right side steel box-girder top plate, short I-steel extends to left side steel
Above box beam, a jack 2 is respectively placed immediately below the short I-steel of each L-type I-steel 1 of left side steel box-girder, passes through jack
2 pairs short I-steel applies active force, and adjustment right side steel box-girder absolute altitude examines left and right sides steel box-girder seam crossing flatness full with guiding ruler
After sufficient design requirement, left and right sides steel box-girder is welded and fixed with band arc notch steel plate 4, band arc notch steel plate 4 is spaced
50cm along vertical bridge to continuous arrangement, as shown in Figure 2.The long I-steel length of L-type I-steel 1 is 30cm, 2 height of jack
For 25cm, short I-steel length is 20cm.L-type I-steel 1 should be able to bear the active force of the application of jack 2 without damaging.It is described
Notch size with arc notch steel plate 4 should be able to meet left and right sides steel box-girder longitudinal seam welding space, the band arc notch steel plate 4
Long 18cm, width 7cm.It can be welded and fixed after after right side, steel box-girder is adjusted to designed elevation.Steel box-girder cornice with
Fixed steel box-girder welding procedure can also be used this device and carry out Pass line adjustment, specific as shown in Figure 3.
Using the installation method of the easy device for adjusting steel box-girder absolute altitude, as shown in Figure 1, it is characterised in that by following
Step carries out:
1) crane 3 is fixed after lifting left side steel box-girder to design position and absolute altitude；
2) right side steel box-girder is sling to left side steel box-girder and is close to by crane 3, and absolute altitude is slightly below left side steel box-girder；
3) in right side steel box-girder, a L-type I-steel 1 is respectively welded at both ends along longitudinal direction, and long I-steel end is welded in right side
On steel box-girder top plate, short I-steel is extended to above the steel box-girder of left side；
4) jack 2 is respectively placed immediately below the short I-steel of each L-type I-steel 1 of left side steel box-girder, by very heavy
It pushes up 2 pairs short I-steel and applies active force, adjustment right side steel box-girder absolute altitude；
5) after examining left and right sides steel box-girder seam crossing flatness to meet design requirement with guiding ruler, with band arc notch steel plate 4
Left and right sides steel box-girder is welded and fixed, band arc notch steel plate 3 is spaced 50cm along vertical bridge to continuous arrangement, as shown in Figure 2；
6) after the completion of the welding of whole arc notch steel plates, crane, L-type I-steel and jack can be removed, is carried out
It is used in turn.
Using it is described adjusting steel box-girder cornice absolute altitude easy device installation method, as shown in Figure 3, it is characterised in that press
Following steps carry out:
1) crane 3 is fixed after lifting steel box-girder to design position and absolute altitude；
2) crane 3 steel box-girder is corniced sling to fixed steel box-girder and be close to, absolute altitude has slightly below fixed steel case
Beam；
3) a L-type I-steel 1 is respectively welded at steel box-girder both ends along longitudinal direction of cornicing, long I-steel end is welded in steel case
Beam cornices on top plate, and short I-steel, which extends to, have been fixed above steel box-girder；
4) jack 2 is respectively placed having fixed immediately below the short I-steel of each L-type I-steel 1 of steel box-girder, pass through thousand
Jin pushes up 2 pairs short I-steel and applies active force, and adjustment steel box-girder cornices absolute altitude；
5) steel box-girder fix with guiding ruler inspection and steel box-girder cornices after seam crossing flatness meets design requirement, with arc
V notch v steel plate 4, which will fix steel box-girder and cornice with steel box-girder, to be welded and fixed, and band arc notch steel plate 3 is spaced 50cm along vertical
Bridge is arranged to continuous；
6) after the completion of the welding of whole arc notch steel plates, crane, L-type I-steel and jack can be removed, is carried out
It is used in turn, it is specific as shown in Figure 3.
Claims (6)
- The easy device of absolute altitude 1. a kind of adjusting steel box-girder or steel case cornice, including two sets of jack, two root long I-steel, two Short I-steel, crane, crane, which is sling absolute altitude steel box-girder to be regulated and is tightly attached to, has fixed steel box-girder, and absolute altitude is lower than fixed steel Box beam, it is characterised in that: every root long I-steel and a short I-steel are welded into a L-type I-steel；Two L-type I-steel Long I-steel end be respectively welded on absolute altitude steel box-girder to be regulated, two sets of jack are individually positioned in and have fixed steel box-girder On, and every set jack is located at below the short I-steel of L-type I-steel.
- The easy device of absolute altitude 2. adjusting steel box-girder according to claim 1 or steel case cornice, it is characterised in that: described Long I-steel length should be greater than very heavy heights of roofs, and bond length should be able to meet jack active face width.
- The easy device of absolute altitude 3. adjusting steel box-girder according to claim 1 or 2 or steel case cornice, it is characterised in that: institute The L-type I-steel stated should be able to bear the active force of jack application without damaging.
- 4. using described in one of claim 1-3 adjusting steel box-girder or steel case cornice absolute altitude easy device installation method, It is characterized in that sequentially including the following steps: step 1, crane carries out after lifting side steel box-girder to design position and absolute altitude It is fixed；Step 2, crane other side absolute altitude steel box-girder to be regulated or steel case are corniced sling to fixed steel box-girder and be close to, Other side absolute altitude steel box-girder to be regulated or steel the case absolute altitude that cornices slightly below have fixed steel box-girder；Step 3, in the other side, absolute altitude is waited for It adjusts steel box-girder or steel case both ends along longitudinal direction of cornicing and respectively welds a L-type I-steel, and the long I-steel end of two L-type I-steel Head is respectively welded at other side absolute altitude steel box-girder to be regulated or steel case cornices on top plate, and two short I-steel, which extend to, has fixed steel case Above beam；Step 4 respectively places a jack immediately below each short I-steel of L-type I-steel for having fixed steel box-girder, leads to It crosses two jack and active force is applied to two short I-steel respectively, adjustment other side absolute altitude steel box-girder to be regulated or steel case cornice Absolute altitude；Step 5 examines two sides steel box-girder with guiding ruler or fix steel box-girder and steel case seam crossing flatness of cornicing meets design After it is required that, by two sides steel box-girder or is fixed steel box-girder with several band arc notch steel plates and corniced with steel case and be welded and fixed, Band arc notch steel plate is arranged along vertical bridge to continuous；Step 6 can remove after the completion of the welding of whole arc notch steel plates Heavy-duty machine, two L-type I-steel and jack, are used in turn.
- The installation method of the easy device of absolute altitude 5. adjusting steel box-girder according to claim 4 or steel case cornice, feature Be: the notch size with arc notch steel plate should be able to meet two sides steel box-girder longitudinal seam welding space.
- The installation method of the easy device of absolute altitude 6. adjusting steel box-girder according to claim 4 or steel case cornice, feature Be: the band arc notch steel plate arrangement spacing is 50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532193.8A CN110172925A (en) | 2019-06-19 | 2019-06-19 | A kind of steel box-girder or the steel case of adjusting cornices the easy device and installation method of absolute altitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532193.8A CN110172925A (en) | 2019-06-19 | 2019-06-19 | A kind of steel box-girder or the steel case of adjusting cornices the easy device and installation method of absolute altitude |
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| Publication Number | Publication Date |
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| CN110172925A true CN110172925A (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910532193.8A Withdrawn CN110172925A (en) | 2019-06-19 | 2019-06-19 | A kind of steel box-girder or the steel case of adjusting cornices the easy device and installation method of absolute altitude |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455851A (en) * | 2020-04-01 | 2020-07-28 | 冉光全 | Temporary prestressing device for segmental prefabricated assembled beam |
| CN112144427A (en) * | 2020-10-27 | 2020-12-29 | 南京工业大学 | Prefabricated culvert on-site dislocation adjusting device and method |
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| US20140305069A1 (en) * | 2013-04-16 | 2014-10-16 | Guangzhou Construction Engineering Co., Ltd. | Apparatus and method for reverse rectification |
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| CN208167546U (en) * | 2018-03-30 | 2018-11-30 | 中铁二十四局集团有限公司 | A kind of steel box-girder component levelling device |
| CN208183556U (en) * | 2018-04-12 | 2018-12-04 | 贵州路桥集团有限公司 | A kind of underneath type Hanging Basket elevation adjusting device |
| CN210712564U (en) * | 2019-06-19 | 2020-06-09 | 中建三局第二建设工程有限责任公司 | Simple device for adjusting height of steel box girder or steel box cornice mark |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140305069A1 (en) * | 2013-04-16 | 2014-10-16 | Guangzhou Construction Engineering Co., Ltd. | Apparatus and method for reverse rectification |
| CN206752317U (en) * | 2017-03-21 | 2017-12-15 | 秦朗 | Steel box-girder lifts interim accurate positioning device |
| CN206928188U (en) * | 2017-05-24 | 2018-01-26 | 中国水利水电第五工程局有限公司 | A kind of bracket system for the positioning of T negative moment of girder stretch-draw jack |
| CN207840529U (en) * | 2018-01-11 | 2018-09-11 | 中国建筑土木建设有限公司 | Micro-tensioning system for steel construction girder steel plate piece leveling |
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| CN208167546U (en) * | 2018-03-30 | 2018-11-30 | 中铁二十四局集团有限公司 | A kind of steel box-girder component levelling device |
| CN208183556U (en) * | 2018-04-12 | 2018-12-04 | 贵州路桥集团有限公司 | A kind of underneath type Hanging Basket elevation adjusting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455851A (en) * | 2020-04-01 | 2020-07-28 | 冉光全 | Temporary prestressing device for segmental prefabricated assembled beam |
| CN112144427A (en) * | 2020-10-27 | 2020-12-29 | 南京工业大学 | Prefabricated culvert on-site dislocation adjusting device and method |
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Application publication date: 20190827 |
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