CN107354872B - A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method - Google Patents
A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method Download PDFInfo
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- CN107354872B CN107354872B CN201710703576.8A CN201710703576A CN107354872B CN 107354872 B CN107354872 B CN 107354872B CN 201710703576 A CN201710703576 A CN 201710703576A CN 107354872 B CN107354872 B CN 107354872B
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- faulting
- slab ends
- box girder
- veneer
- variable cross
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- 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
Abstract
The invention discloses a kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structures, including box girder segment and bottom steel form, faulting of slab ends made of veneer is laid with is provided at faulting of slab ends position between the box girder segment and bottom steel form to compensate, the faulting of slab ends compensation is fixed on by rivet on steel form, faulting of slab ends compensation top is laid with poly-putty base, so that faulting of slab ends compensation achievees the effect that original template arc curve.And also disclose corresponding construction method.It entirely invents between solving each segment of variable cross-section fish-bellied type cast-in-situ box girder due to faulting of slab ends caused by prestressed stretch-draw, speed of application is fast, at low cost, compared with the construction method of traditional post-processing faulting of slab ends position, the more practical feature of the invention, and improve the impression quality of construction.
Description
Technical field
The invention belongs to bridge construction technical fields, and it is wrong especially to relate to a kind of variable cross-section fish-bellied type cast-in-situ box girder concrete
Platform control structure and construction method.
Background technology
In recent years, with the fast development of building trade, requirement of the Urban Bridge to landscape is higher and higher, and design mostly uses
Fish-belly box beam, fish-belly box beam bridge have the characteristics that handsome in appearance, meet bridge Aesthetics Design, common fish-belly continuous box beam
Mostly cross-section, template is assembled more regular in box girder construction, and moulding and the knot of curved variable cross-section fish-bellied type steel box-girder
Configuration formula is complicated, and new challenge is brought to construction.Curved variable cross-section fish-bellied type Steel Continuous Box beam in each segmental construction, due to
Prestressed stretch-draw cause the first construction segment and second construct segmental construction seam position formed faulting of slab ends phenomenon, surface impression quality compared with
Difference.Generally conventional method is to carry out incrustation processing after the completion of waiting for box girder construction, and processing is since there are working at height in this way
Difficulty is larger, and quality can not ensure, and processing cost is also higher, so if using traditional construction technology it is difficult to ensure that applying
The whole fluency of working medium amount and Landscape Bridge appearance, and difficulty of construction increase can also greatly prolong the duration.
Invention content
The present invention provides that a kind of constructing operation is convenient, work efficiency is high and constructs aiming at the deficiencies in the prior art
Variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure at low cost and construction method.
To achieve the goals above, a kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends prevention designed by the present invention
Structure is characterized in that：Including box girder segment and bottom steel form, the mistake between the box girder segment and bottom steel form
It is provided with faulting of slab ends made of veneer is laid at platform position to compensate, the faulting of slab ends compensation is fixed on by rivet on steel form, wrong
Platform compensation top is laid with poly-putty base, so that faulting of slab ends compensation achievees the effect that original template arc curve.
Further, consolidating in order to ensure veneer, faulting of slab ends compensation top are provided with gasket.Gasket rigidity reaches
Requirement generally uses common stainless steel gasket.
Further, the rivet is self-plugging rivet.Self-plugging rivet is easy to operate, efficient, and when construction can effectively be closed
Hole, is suitable for high intensity connecting portion, and installation is firm.
Further, the veneer plate thickness is no more than 5mm.
A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure of the present invention is integrally fairly simple, operability
By force, speed of application is fast, at low cost, and overall stability is good, and molding impression quality is good.
In order to further realize the structure of the present invention, it is mixed that the present invention also provides a kind of variable cross-section fish-bellied type cast-in-situ box girders
The construction method of solidifying soil faulting of slab ends control structure, is characterized in that：Include the following steps：
Acquire faulting of slab ends deviation data：Measure the deviation data of acquisition box girder segment faulting of slab ends position；
Design faulting of slab ends compensation：Thickness, area and the installation of each segment veneer are designed according to the faulting of slab ends deviation data of acquisition
The specification of position and rivet is selected, and marks the corresponding mounting hole position of rivet on veneer and bottom steel form；
In-site measurement setting-out：In-site measurement setting-out is carried out to veneer Board position according to design scheme, on the steel form of bottom
Label understands point and absolute altitude, clears up the sundries on the steel form of bottom, prepares installation veneer；
Faulting of slab ends compensation is installed：Veneer is mated formation from level to level according to faulting of slab ends deviation data and setting-out position, by low when laying
Place hoists pavement layer by layer；The position setting-out of rivet mounting hole is carried out after the completion of the laying of each region, according to rivet mounting hole position
It drills to veneer, bottom steel form, rivet is used in combination that veneer is fixed on the steel form of bottom；
Faulting of slab ends position is filled up：It carries out filling up plastering using poly-putty base at the top of the faulting of slab ends compensation that veneer is formed, and brushes
Steel form parting agent special；, after poly-putty base plastering, need to polish, it is ensured that surface is smooth, then the special demoulding of brushing steel form
Agent.
Then box girder segment is poured, reconnect next box girder segment and carries out faulting of slab ends compensation by above step.
Further, faulting of slab ends compensation top is provided with gasket.
Further, the rivet uses self-plugging rivet.
Preferably, the deviation data of faulting of slab ends position is measured using total powerstation and slide calliper rule；Veneer in-site measurement setting-out
Shi Caiyong total powerstations and spirit level measure.
Preferably, it is generally designed using mapping software when the compensation of design faulting of slab ends.
The advantage of the invention is that：
The present invention solves between each segment of variable cross-section fish-bellied type cast-in-situ box girder due to faulting of slab ends caused by prestressed stretch-draw, profit
Laying is carried out with veneer and reduces faulting of slab ends height, and plank substitution steel plate is easier execute-in-place, and does not destroy punching block surface modes
Plate paint fixes veneer using rivet, easy to operate, is easier to ensure that construction quality, upper surface utilize atom compared to welding
Ash progress is levelling, and easy for construction, surface is smooth to reach Forming Quality, does not need brushing template paint.Entire method speed of application is fast,
It is at low cost, compared with the construction method of traditional post-processing faulting of slab ends position, the more practical feature of the invention, and improve
The impression quality of construction.
Description of the drawings
Fig. 1 is box girder segment horizontal cross-section structure diagram of the present invention.
Fig. 2 is box girder segment longitudinal profile structure schematic of the present invention.
Fig. 3 is box girder segment horizontal section faulting of slab ends treatment site structural schematic diagram in the present invention.
Fig. 4 is box girder segment longitudinal profile faulting of slab ends treatment site of the present invention structural schematic diagram.
Fig. 5 is structural schematic diagram at the faulting of slab ends compensation of the present invention.
Fig. 6 is that the faulting of slab ends of the present invention compensates part-structure enlarged diagram
Fig. 7 is the rivet gasket construction schematic diagram of the present invention.
Fig. 8 is gasket construction schematic diagram.
In figure：Box girder segment 1, bottom steel form 2, faulting of slab ends position 3, faulting of slab ends compensation 4, poly-putty base 5, gasket 6, rivet 7.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments：
Variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure shown in figure, including box girder segment 1 and bottom
Steel form 2 is provided with faulting of slab ends made of veneer is laid at the faulting of slab ends position 3 between box girder segment 1 and bottom steel form 2 and compensates
4, faulting of slab ends compensation 4 is fixed on by rivet 5 on bottom steel form 2, and 4 top of faulting of slab ends compensation is laid with poly-putty base 5, so that faulting of slab ends
Compensation 4 achievees the effect that original template arc curve.In order to ensure that the firm of veneer, 4 top of faulting of slab ends compensation are provided with gasket
6, gasket rigidity reaches requirement, generally uses common stainless steel gasket.Rivet is self-plugging rivet, self-plugging rivet operation
It is convenient, it is efficient, when construction can effective cap holes, be suitable for high intensity connecting portion, installation is firm.
The construction method of above-mentioned variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure, includes the following steps：
1, the deviation data for using total powerstation and calliper acquisition faulting of slab ends position first, then utilizes mapping software to combine
The data of field measurement carry out faulting of slab ends situation template Compensation Design, design thickness and size that each segment veneer uses,
And the specification of rivet is selected, it is self-plugging rivet to design the rivet used here, only need to design corresponding template mounting hole position
It can be used, the position coordinates label that design scheme installs detailed hole position and veneer is clear, is used for surveyor's setting-out.
Select veneer plate thickness generally according to following standard：One is to try to reduce the plank number of plies, prevents contraction distortion big, and two
It is to ensure that the flexibility of plank, is unlikely to rigidity and is difficult to lay greatly.Based on above-mentioned standard, thickness is generally selected not in practice of construction
Veneer more than 5mm.
2, setting-out is measured according to design scheme, measures and mainly uses total powerstation and spirit level according to design scheme to thin
Plank position carries out setting-out, and Chu's point and absolute altitude are remembered in punching block subscript, then cleans out the sundries on punching block, prepares installation
Veneer.
3, veneer is installed according to setting-out position, plank thickness and size are determined according to deviation data, according to setting-out position
Veneer is mated formation from level to level, need not use adhesive, and when laying is hoisted by lower successively to carry out, and waits for one region of laying
Afterwards, be fixed hole position setting-out, according to hole point position carry out plank, punching block drill, aperture should in conjunction with use rivet specification into
Row determines.
4, hole position proceeds by rivet after being drilled and fixes, and to ensure that veneer is effectively fixed, veneer fixing end need to add
Shim liner is fixed on punching block together, it is ensured that veneer is firm.
5, since entire box beam is variable cross-section fish-belly box beam, profile height is different, and the sizes of faulting of slab ends data is not yet
Identical, so the height difference for the veneer formed stepwise that installation is complete, to reach using effect, faulting of slab ends potential pressure is using former
Sub- ash carries out filling up plastering, and to reach original template arc curve effect, it is i.e. certifiable mixed that surface does not need brushing template paint
Solidifying soil impression quality.After poly-putty base plastering, it need to polish, it is ensured that surface is smooth, then brushing steel form parting agent special.
After completing above step, box girder segment is poured, next box girder segment is reconnected and is carried out by above step
Faulting of slab ends compensates.
The present invention solves between each segment of variable cross-section fish-bellied type cast-in-situ box girder due to faulting of slab ends caused by prestressed stretch-draw, profit
Laying is carried out with veneer and reduces faulting of slab ends height, and plank substitution steel plate is easier execute-in-place, and does not destroy punching block surface modes
Plate paint fixes veneer using rivet, easy to operate, is easier to ensure that construction quality, upper surface utilize atom compared to welding
Ash progress is levelling, is different from the later stage working at height mode of traditional approach, the present invention is easy for construction, and surface is smooth to reach molding matter
Amount, does not need brushing template paint.The present invention is carrying out in the construction process, and the material needed is simpler, and operation is more convenient,
The duration can be followed to carry out, compared with the construction method of traditional post-processing faulting of slab ends position, the labour for alleviating worker is strong substantially
Degree and time, entire design and method speed of application are fast, at low cost, practical and convenient, and improve the impression quality of construction.
Claims (9)
1. a kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure, it is characterised in that：Including box girder segment and bottom
Portion's steel form is provided with faulting of slab ends made of veneer is laid at the faulting of slab ends position between the box girder segment and bottom steel form and mends
It repays, the faulting of slab ends compensation is fixed on by rivet on the steel form of bottom, and faulting of slab ends compensation top is laid with poly-putty base, so that faulting of slab ends
Compensation achievees the effect that original template arc curve.
2. variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 1, it is characterised in that：Institute
It states faulting of slab ends compensation top and is provided with gasket.
3. variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 1, it is characterised in that：Institute
It is self-plugging rivet to state rivet.
4. variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 1, it is characterised in that：Institute
It states veneer plate thickness and is no more than 5mm.
5. a kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure as described in any one of claims 1 to 4
Construction method, which is characterized in that include the following steps：
Acquire faulting of slab ends deviation data：Measure the deviation data of acquisition box girder segment faulting of slab ends position；
Design faulting of slab ends compensation：Thickness, area and the installation site of each segment veneer are designed according to the faulting of slab ends deviation data of acquisition,
And the specification of rivet is selected, and mark the corresponding mounting hole position of rivet on veneer and bottom steel form；
In-site measurement setting-out：In-site measurement setting-out is carried out to veneer Board position according to design scheme, is remembered in bottom steel form subscript
Understand point and absolute altitude, clear up the sundries on the steel form of bottom, prepares installation veneer；
Faulting of slab ends compensation is installed：Veneer is mated formation from level to level according to faulting of slab ends deviation data and setting-out position, when laying from lower to
Eminence pavement layer by layer；The position setting-out of rivet mounting hole is carried out after the completion of the laying of each region, according to rivet mounting hole position to thin
Plank, bottom steel form drill, and are used in combination rivet that veneer is fixed on the steel form of bottom；
Faulting of slab ends position is filled up：It carries out using poly-putty base filling up plastering, and brushing punching block at the top of the faulting of slab ends compensation that veneer is formed
Plate parting agent special；
Then box girder segment is poured, reconnect next box girder segment and carries out faulting of slab ends compensation by above step.
6. the construction method of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 5,
It is characterized in that：Faulting of slab ends compensation top is provided with gasket.
7. the construction method of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 5,
It is characterized in that：The rivet uses self-plugging rivet.
8. the construction method of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 5,
It is characterized in that：The deviation data of faulting of slab ends position is measured using total powerstation and slide calliper rule；It is used when veneer in-site measurement setting-out
Total powerstation and spirit level measure.
9. the construction method of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure according to claim 5,
It is characterized in that：It is generally designed using mapping software when design faulting of slab ends compensation.
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| CN201710703576.8A CN107354872B (en) | 2017-08-16 | 2017-08-16 | A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method |
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| CN201710703576.8A CN107354872B (en) | 2017-08-16 | 2017-08-16 | A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method |
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| CN107354872B true CN107354872B (en) | 2018-10-23 |
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| CN108867401B (en) * | 2018-08-28 | 2020-02-21 | 佛山市粤优创钢结构有限公司 | Bridge concrete slab staggering correction method |
| CN110735400B (en) * | 2019-10-22 | 2021-10-01 | 中国一冶集团有限公司 | Special-shaped structure protection mechanism and protection construction method |
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| CN1230589C (en) * | 2003-08-05 | 2005-12-07 | 邓敬森 | Rapid repair construction method of concrete panel sunken platform for expressway |
| KR100899713B1 (en) * | 2008-09-23 | 2009-05-28 | 최지영 | Bridge structure of steel composite girder using precast arch-deck, and constructing method thereof |
| CN103899088B (en) * | 2014-04-22 | 2016-02-03 | 中建八局第三建设有限公司 | Large span ultra-thin overlength cast-in-situ clear-water concrete Slate hanging construction method |
| CN105714684B (en) * | 2016-02-24 | 2018-08-21 | 中国一冶集团有限公司 | Prestress concrete variable cross-section fish-belly continuous box beam construction method |
| CN205477651U (en) * | 2016-03-21 | 2016-08-17 | 长安大学 | Wrong platform disease punishment structure of shield tunnel |
| CN206109962U (en) * | 2016-09-30 | 2017-04-19 | 安徽省公路桥梁工程有限公司 | Cast -in -place fish belly formula case boom support |
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