CN205843552U - A kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction - Google Patents
A kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction Download PDFInfo
- Publication number
- CN205843552U CN205843552U CN201620891759.8U CN201620891759U CN205843552U CN 205843552 U CN205843552 U CN 205843552U CN 201620891759 U CN201620891759 U CN 201620891759U CN 205843552 U CN205843552 U CN 205843552U
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- CN
- China
- Prior art keywords
- cantilever end
- rigid frame
- buried anchor
- incremental launching
- pushing tow
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Abstract
This utility model belongs to bridge structure technical field of construction, it particularly relates to a kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction.It includes in rigid frame bridge the cantilever end A across side, the cantilever end B of opposite side, box beam base plate, box beam top board, pre-buried anchor slab, pushing tow bracket pre-embedded steel slab, weld seam, puts more energy into bracing members, scale, free end face, support column and jack temporarily.Compared with prior art, rigid frame bridge described in the utility model takes full advantage of the outer locking device of incremental launching construction across the system for monitoring displacement closing up incremental launching construction, by recording the scale meansigma methods on all pre-buried anchor slabs, the pushing tow displacement of steel bridge folding mouth can be accurately obtained, and simple to operate, real-time, without increasing extra charge, can be that Practical Project provides new departure across the displacement monitoring closing up incremental launching construction in long-span continuous rigid-framed bridge.
Description
Technical field
This utility model belongs to bridge structure technical field of construction, it particularly relates to one in the rigid frame bridge across
Close up the system for monitoring displacement of incremental launching construction.
Background technology
In order to eliminate high temperature closure with become bridge after the adverse effect of concrete shrinkage and creep, large span continuous rigid frame bridge need to be
To the cantilever end horizontal jacking force of beam body applying when closing up, substantially offset the knot because closing up the temperature difference and concrete shrinkage and creep causes
Structure displacement and internal force so that the internal force under Cheng Qiaohou structure use state is in zone of reasonableness, it is ensured that bridge uses safety.Existing
Incremental launching construction displacement monitoring means in, it is common practice to drawing tape measure between pushing tow cross section, slightly accurate way is
Being arranged on by pushing tow displacement monitoring dot structure at girder end bay box beam base plate, the former precision is poor, it is difficult to realize monitoring in real time, after
Person monitoring point structure installation difficulty, extra charge increases, and incremental launching construction is all carried out at night, is unfavorable for displacement monitoring, based on
This, the monitoring means that each unit in charge of construction takes during Practical Project incremental launching construction is different, but mostly there is problem above.
Summary of the invention
For solve above-mentioned technical problem, this utility model provide a kind of simple to operate, real-time for rigid frame bridge
In across the system for monitoring displacement closing up incremental launching construction.
Described in the utility model in rigid frame bridge across closing up the system for monitoring displacement of incremental launching construction, described displacement monitoring
System include with in rigid frame bridge across adjacent for cantilever end A1 cantilever end B2, box beam base plate 3, box beam top board 4, pre-buried anchor slab 5, top
Push away bracket pre-embedded steel slab 6, weld seam 7, put more energy into bracing members 8, scale 9 and free end face 10 temporarily.Box beam base plate 3 and box beam top board 4
Upper surface in cantilever end correspondence web district is respectively provided on two sides with a pre-buried anchor slab 5 exceeding concrete surface；Box beam top board 4
It is respectively provided with a pushing tow bracket pre-embedded steel slab 6 at the box girder web of corresponding both sides；Bracing members 8 of temporarily putting more energy into is erected at the outstanding of homonymy
The upper surface of the pre-buried anchor slab 5 of arm end A1 and cantilever end B2；Bracing members 8 one end of temporarily putting more energy into firmly is located at cantilever by weld seam 7
Pre-buried anchor slab 5 upper surface of end A1, another end-rack is at pre-buried anchor slab 5 upper surface of cantilever end B2；Scale 9 is located at cantilever end B2's
On pre-buried anchor slab 5, its zero graduation line aligns with free end face 10.
Described in the utility model in rigid frame bridge across closing up the system for monitoring displacement of incremental launching construction, described cantilever end B2
On pushing tow bracket pre-embedded steel slab 6 can connect support column 11；Pushing tow bracket pre-embedded steel slab 6 on described cantilever end A1 can connect thousand
Jin top 12.
In use, can carry out in accordance with the following steps: rigid frame bridge side cantilever end A and opposite side cantilever end B sections exist
During formwork erection construction, pre-set pre-buried anchor slab and pushing tow bracket pre-embedded steel slab at box beam top board and box beam base plate, and take reliable
Measure ensures that pre-buried anchor slab exceeds box beam concrete roof surface；Side cantilever end A box beam top board and base plate steel of temporarily putting more energy into props up
Support is welded with pre-buried anchor slab, and ensures that weld seam is firm；Exceed at the opposite side pre-buried anchor slab of cantilever end B and set at concrete surface
Putting scale, scale zero graduation aligns with bracing members free end face of putting more energy into temporarily；Jack and pushing post withstand bracket pre-embedded steel slab
On, when jack starts pushing tow, record the scale label that bracing members free end face of putting more energy into is corresponding, obtain the top of steel bridge folding mouth
Push away displacement.
Compared with prior art, rigid frame bridge described in the utility model fills across the system for monitoring displacement closing up incremental launching construction
Divide the outer locking device that make use of incremental launching construction, by recording the scale meansigma methods on all pre-buried anchor slabs, it is possible to be accurately obtained
The pushing tow displacement of steel bridge folding mouth, and simple to operate, real-time, without increasing extra charge, can be Practical Project
Middle long-span continuous rigid-framed bridge provides new method across the displacement monitoring closing up incremental launching construction.
Accompanying drawing explanation
Fig. 1: across the system for monitoring displacement layout drawing closing up incremental launching construction in rigid frame bridge；Fig. 2: across closing up locking in rigid frame bridge
Device layout drawing；1-cantilever end A, 2-cantilever end B, 3-box beam base plate, 4-box beam top board, the pre-buried anchor slab of 5-, 6-pushing tow bracket are pre-
Bury steel plate, 7-weld seam, 8-put more energy into bracing members, 9-scale, 10-free end face, 11-support column, 12-jack temporarily.
Detailed description of the invention
Below in conjunction with specific embodiment, system for monitoring displacement described in the utility model is described further, but this
The protection domain of utility model is not limited to this.
Embodiment 1
Across closing up the system for monitoring displacement of incremental launching construction in a kind of rigid frame bridge, including cantilever end across side in rigid frame bridge
A1, the cantilever end B2 of opposite side, box beam base plate 3, box beam top board 4, pre-buried anchor slab 5, pushing tow bracket pre-embedded steel slab 6, weld seam 7, face
Time put more energy into bracing members 8, scale 9, free end face 10, support column 11 and jack 12.Cantilever end A1 and cantilever end B2 sections are vertical
During mould construction, pre-set pre-buried anchor slab 5 and pushing tow bracket pre-embedded steel slab 6 at box beam top board 4 and box beam base plate 3；Described pre-buried
Anchor slab 5 takes responsible measures to ensure, and pre-buried anchor slab 5 exceeds box beam top board 4 concrete surface；Described side cantilever end 1 ensures temporarily
Bracing members 8 of putting more energy into is firm with pre-buried anchor slab 5 weld seam 7；Described scale 9 is arranged at the pre-buried anchor slab of opposite side cantilever end 25 and exceeds coagulation
Soil surface；Described scale 9 zero graduation aligns with free end face 10；During described jack 12 pushing tow support column 11, record is freely
Scale 9 scale of end face 10 correspondence, obtains the pushing tow displacement of steel bridge folding mouth.Free end face 10 is positioned at steel of temporarily putting more energy into and props up
The low order end of support 8.
In use, can carry out in accordance with the following steps: rigid frame bridge side cantilever end A and opposite side cantilever end B sections exist
During formwork erection construction, pre-set pre-buried anchor slab and pushing tow bracket pre-embedded steel slab at box beam top board and box beam base plate, and take reliable
Measure ensures that pre-buried anchor slab exceeds box beam concrete roof surface；Side cantilever end A box beam top board and base plate steel of temporarily putting more energy into props up
Support is welded with pre-buried anchor slab, and ensures that weld seam is firm；Exceed at the opposite side pre-buried anchor slab of cantilever end B and set at concrete surface
Putting scale, scale zero graduation aligns with the free end face of bracing members of putting more energy into temporarily；Jack and pushing post withstand bracket pre-buried steel
On plate, when jack starts pushing tow, the scale label that record free end face is corresponding, obtain the pushing tow displacement of steel bridge folding mouth
Amount.
Compared with prior art, rigid frame bridge described in the utility model fills across the system for monitoring displacement closing up incremental launching construction
Divide the outer locking device that make use of incremental launching construction, by recording the scale meansigma methods on all pre-buried anchor slabs, it is possible to be accurately obtained
The pushing tow displacement of steel bridge folding mouth, and simple to operate, real-time, without increasing extra charge, can be Practical Project
Middle long-span continuous rigid-framed bridge provides new method across the displacement monitoring closing up incremental launching construction.
Claims (2)
1. one kind is used in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction, it is characterised in that described displacement monitoring system
System include with in rigid frame bridge across adjacent for cantilever end A (1) cantilever end B (2), box beam base plate (3), box beam top board (4), pre-buried anchor
Plate (5), pushing tow bracket pre-embedded steel slab (6), weld seam (7), put more energy into bracing members (8), scale (9) and free end face (10) temporarily；Case
Beam base plate (3) is respectively provided on two sides with one with the box beam top board (4) upper surface in cantilever end corresponding web district and exceeds concrete table
The pre-buried anchor slab (5) in face；Box beam top board (4) is respectively provided with pushing tow bracket pre-embedded steel slab (6) at the box girder web of corresponding both sides；
Bracing members (8) of temporarily putting more energy into is erected at the upper surface of the pre-buried anchor slab (5) of the cantilever end A (1) and cantilever end B (2) of homonymy；Temporarily
Bracing members (8) one end of putting more energy into firmly is located at pre-buried anchor slab (5) upper surface of cantilever end A (1) by weld seam (7), and another end-rack exists
Pre-buried anchor slab (5) upper surface of cantilever end B (2)；Scale (9) is located on the pre-buried anchor slab (5) of cantilever end B (2), its zero graduation line
Align with free end face (10).
The most according to claim 1 in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction, it is characterised in that
Pushing tow bracket pre-embedded steel slab (6) on described cantilever end B (2) can connect support column (11)；Pushing tow on described cantilever end A (1)
Bracket pre-embedded steel slab (6) can connect jack (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891759.8U CN205843552U (en) | 2016-08-17 | 2016-08-17 | A kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891759.8U CN205843552U (en) | 2016-08-17 | 2016-08-17 | A kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205843552U true CN205843552U (en) | 2016-12-28 |
Family
ID=57617282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620891759.8U Expired - Fee Related CN205843552U (en) | 2016-08-17 | 2016-08-17 | A kind of in rigid frame bridge across the system for monitoring displacement closing up incremental launching construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205843552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172927A (en) * | 2019-07-09 | 2019-08-27 | 招商局重庆交通科研设计院有限公司 | The span centre of prestressed concrete continuous beam and continuous rigid frame closes up section constructing method |
| CN111962404A (en) * | 2020-08-26 | 2020-11-20 | 陕西路桥集团有限公司 | T-shaped rigid frame cantilever bridge synchronous pushing displacement control closure method and cantilever bridge |
-
2016
- 2016-08-17 CN CN201620891759.8U patent/CN205843552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172927A (en) * | 2019-07-09 | 2019-08-27 | 招商局重庆交通科研设计院有限公司 | The span centre of prestressed concrete continuous beam and continuous rigid frame closes up section constructing method |
| CN111962404A (en) * | 2020-08-26 | 2020-11-20 | 陕西路桥集团有限公司 | T-shaped rigid frame cantilever bridge synchronous pushing displacement control closure method and cantilever bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20190817 |