CN110130233A - A kind of remodeling method suitable for double curvature arched bridge spandrel construction - Google Patents
A kind of remodeling method suitable for double curvature arched bridge spandrel construction Download PDFInfo
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- CN110130233A CN110130233A CN201910369766.XA CN201910369766A CN110130233A CN 110130233 A CN110130233 A CN 110130233A CN 201910369766 A CN201910369766 A CN 201910369766A CN 110130233 A CN110130233 A CN 110130233A
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- vault
- bridge
- double curvature
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- bed die
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of remodeling methods suitable for double curvature arched bridge spandrel construction, after removing spandrel construction, double curvature arched bridge has arch bridge empty stomach section and vault reality abdomen section, connect the cross wall of high arch bridge empty stomach section and vault reality abdomen section, support is placed above cross wall, and steel bed die is lifted to support, several WELDING STUDSs welded on the inside of steel bed die, and WELDING STUDS and the double layer bar net of laying are welded as entirety, and end is consolidated by reinforcing bar and vault reality abdomen section；In vault reality abdomen section casting concrete；Full-bridge overall time casting concrete carriageway plate.Remodeling method of the invention effectively increases the bearing capacity of carriageway plate, improve the crack resistance of carriageway plate, to improve road-ability and durability, improve the connection of carriageway plate and main arch ring to which bridge floor horizontal loading is effectively passed to main arch ring, its construction procedure is easy orderly, has very strong practicability and wide applicability.
Description
Technical field
The present invention relates to a kind of remodeling methods of spandrel construction, and in particular to a kind of cast-in-place coagulation of steel bed die of double curvature arched bridge
Native spandrel construction remodeling method, belongs to Bridge Reconstruction technical field.
Background technique
Double curvature arched bridge appearance had for more than 60 years, due to it breaks the whole up into parts, it is collecting and distributing be whole design and construction method very
It is suitble to the national conditions of China, therefore large-scale construction was once obtained.But found in operation, the bridge type globality is poor, carrying
The endurance issues such as low, the spandrel construction infiltration of ability.Many double curvature arched bridges even face dismounting.So a large amount of double curvature arched bridge quilt
It reinforces or is transformed.
Spandrel construction transformation is most common modification scheme, and original arch fill and bridge deck etc. are removed, transform as
Simply supported slab or continuous slab.
Traditional remodeling method is setting and simply supported slab or continuous slab on cross wall after removing spandrel construction.Plate
Structure and arch ring encircle between upper cross wall through support or leveling mortar connection.Find exist following several in use
The shortcomings that aspect.
(1), simply supported slab is in the prevalence of bridge floor transverse joint, pore gas flow；Continuous slab then since plate thickness receives limitation, end bay with
In cause in the prevalence of pier top hogging moment problem of Cracking across ratio is unreasonable etc.；
(2), under vehicular load impact or braking action, carriageway plate subjects horizontal force, which can not effectively transmit
To arch ring, leading to carriageway plate, there is sliding trend；
(3), it generallys use prefabricated, the lifting wet seam of after-pouring for continuous slab continuously to be constructed, to construction equipment
It is required that high；Construction period is long, continuous slab globality poor.
Summary of the invention
To solve the deficiencies in the prior art, no support cast-in-place concrete can be used the purpose of the present invention is to provide one kind to apply
Work improves the globality of carriageway plate, shortens the remodeling method suitable for double curvature arched bridge spandrel construction of construction period.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of remodeling method suitable for double curvature arched bridge spandrel construction, comprising the following steps:
After S1, dismounting spandrel construction, double curvature arched bridge includes arch bridge empty stomach section and vault reality abdomen section；
S2, the cross wall for connecing high arch bridge empty stomach section and vault reality abdomen section；
S3, support is placed above cross wall；
S4, by steel bed die in lifting on support, end connects vault reality abdomen section；
S5, in vault reality abdomen section casting concrete face；
S6, full-bridge overall time casting concrete carriageway plate.
Support in above-mentioned steps S2 is teflon sliding bearing.
In above-mentioned steps S6 before casting concrete, in the stiff skeleton that carriageway plate is arranged on steel bed die, comprising: in steel bottom
Several WELDING STUDSs welded on the inside of mould, and the steel mesh being layed in carriageway plate, and WELDING STUDS and steel mesh are welded as entirety.
Further, above-mentioned steel mesh is bilayer.
Further, above-mentioned steel bed die, WELDING STUDS, the steel mesh welding manufacture in factory are completed.
In above-mentioned steps S4, the end of steel bed die is consolidated by reinforcing bar and vault reality abdomen section.
It in above-mentioned steps S4, states in step S4, several steel bed die welding series connection are lifted in continuous plate to support, one end
Affixed with one end of vault reality abdomen section, the other end is free end, can be slided along bridge to free extension, i.e., the reserved sky that expands with heat and contract with cold
Between.
The invention has the beneficial effects that:
(1), carriageway plate of the invention and main arch ring vault reality abdomen section cast-in-place concrete consolidate, and structural integrity is good, runway
The load of plate can effectively be transferred to main arch ring.
(2), carriageway plate uses steel bed die, has WELDING STUDS in steel bed die interior welds and welds with the steel mesh of binding
It is connected in entirety.Steel bed die, WELDING STUDS, steel mesh have great rigidity after being welded as entirety, can satisfy construction machinery and show
The requirement of pouring concrete, can be using no support cast-in-place concrete construction.Can effectively shorten the duration, reduce investment；Together
When can greatly improve the globality of carriageway plate.
(3), steel bed die is set to the bottom of carriageway plate, and the high material of tensile strength, which is set to bottom, effectively to be mentioned
The thickness of high carriageway plate, improves the rigidity of carriageway plate, to reduce the risk of hogging moment area cracking, ensure that structure
Durability, road-ability.
Remodeling method of the invention effectively increases the bearing capacity of carriageway plate, improves the crack resistance of carriageway plate, from
And road-ability and durability are improved, improve the connection of carriageway plate and main arch ring to effectively transmit bridge floor horizontal loading
To main arch ring, construction procedure is easy orderly, has very strong practicability and wide applicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that double curvature arched bridge spandrel construction of the invention is transformed.
Fig. 2 is the organigram of steel bed die cast-in-place concrete carriageway plate of the invention.
Attached meaning marked in the figure is as follows: 1, double curvature arched bridge main arch ring, 2, cross wall, 3, support, 4, concrete runway
Plate, 5, vault reality abdomen consolidation section, 6, WELDING STUDS, 7, steel mesh, 8, steel fiber reinforced concrete, 9, steel bed die.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
A kind of remodeling method suitable for double curvature arched bridge spandrel construction, comprising the following steps:
S1, the double curvature arched bridge after spandrel construction is removed, as shown in Figure 1, there are vault reality abdomen section and two in double curvature arched bridge main arch ring part
The arch bridge empty stomach section at end；
S2, the cross wall for connecing high arch bridge empty stomach section and vault reality abdomen section, top surface flushes or is a flat surface；
S3, in placing teflon sliding bearing on cross wall top；
S4, several steel bed dies are lifted in continuous plate to support, several WELDING STUDSs welded on the inside of steel bed die, and sheared
Nail is welded as entirety with the double layer bar net being laid with, and end is consolidated by reinforcing bar and vault reality abdomen section；The other end is freely
End can be slided along bridge to free extension above arch bridge empty stomach section；
S5, in vault reality abdomen section casting concrete, the top surface of pre-fill jack arch top reality abdomen section；
S6, full-bridge overall time casting concrete carriageway plate, steel bed die, WELDING STUDS, double layer bar constitute carriageway plate
Stiff skeleton, the consolidation section for building concrete carriageway plate and vault reality abdomen section is that vault reality abdomen consolidates section.
Continuous slab is consolidated in arch bridge span centre reality abdomen section and arch ring, i.e., vault reality abdomen consolidates section, provides boundary for continuous slab
Condition.
Teflon sliding bearing is set between arch bridge cross wall below continuous slab, do not constrain the suitable bridge of continuous slab to
It is flexible.
Continuous slab uses steel bed die cast-in-place concrete carriageway plate, has preferable globality.
Setting WELDING STUDS, steel mesh are simultaneously connected as entirety in steel bed die, rigidity with higher, be able to bear concrete with
And the weight of construction equipment, erection without scaffolding.
Concrete is preferably rigid fiber concrete.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (7)
1. a kind of remodeling method suitable for double curvature arched bridge spandrel construction, which comprises the following steps:
After S1, dismounting spandrel construction, double curvature arched bridge includes arch bridge empty stomach section and vault reality abdomen section；
S2, the cross wall for connecing high arch bridge empty stomach section and vault reality abdomen section；
S3, support is placed above cross wall；
S4, steel bed die is lifted to support, end connects vault reality abdomen section；
S5, in vault reality abdomen section casting concrete face；
S6, full-bridge overall time casting concrete carriageway plate.
2. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 1, which is characterized in that described
Support in step S2 is teflon sliding bearing.
3. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 1, which is characterized in that described
In step S6 before casting concrete, in the stiff skeleton that carriageway plate is arranged on steel bed die, comprising: welded on the inside of steel bed die
Several WELDING STUDSs, and the steel mesh being layed in carriageway plate, and WELDING STUDS and steel mesh are welded as entirety.
4. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 3, which is characterized in that described
Steel mesh is bilayer.
5. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 3, which is characterized in that described
Steel bed die, WELDING STUDS, steel mesh are welded in factory and are made.
6. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 1, which is characterized in that described
In step S4, the end of steel bed die is consolidated by reinforcing bar and vault reality abdomen section.
7. a kind of remodeling method suitable for double curvature arched bridge spandrel construction according to claim 1, which is characterized in that described
In step S4, several steel bed die welding series connection are lifted in continuous plate to support, and one end and one end of vault reality abdomen section are affixed,
The other end is free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369766.XA CN110130233A (en) | 2019-05-06 | 2019-05-06 | A kind of remodeling method suitable for double curvature arched bridge spandrel construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369766.XA CN110130233A (en) | 2019-05-06 | 2019-05-06 | A kind of remodeling method suitable for double curvature arched bridge spandrel construction |
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| CN110130233A true CN110130233A (en) | 2019-08-16 |
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| CN201910369766.XA Pending CN110130233A (en) | 2019-05-06 | 2019-05-06 | A kind of remodeling method suitable for double curvature arched bridge spandrel construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777679A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming truss of deck type arch bridge |
| CN111119067A (en) * | 2020-02-27 | 2020-05-08 | 重庆交通大学 | Concrete pouring template for outer packing bottom plate of arch bridge and construction method thereof |
| CN114592446A (en) * | 2022-03-23 | 2022-06-07 | 广西北投交通养护科技集团有限公司 | Quick breaking and dismantling method for masonry arch bridge with released bridge deck constraint |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777679A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming truss of deck type arch bridge |
| CN111119067A (en) * | 2020-02-27 | 2020-05-08 | 重庆交通大学 | Concrete pouring template for outer packing bottom plate of arch bridge and construction method thereof |
| CN114592446A (en) * | 2022-03-23 | 2022-06-07 | 广西北投交通养护科技集团有限公司 | Quick breaking and dismantling method for masonry arch bridge with released bridge deck constraint |
| CN114592446B (en) * | 2022-03-23 | 2022-09-13 | 广西北投交通养护科技集团有限公司 | Quick breaking and dismantling method for masonry arch bridge with released bridge deck constraint |
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Application publication date: 20190816 |