CN106351131B - A kind of method without the support reformation rigid framed arch bridge floorings - Google Patents
A kind of method without the support reformation rigid framed arch bridge floorings Download PDFInfo
- Publication number
- CN106351131B CN106351131B CN201610837485.9A CN201610837485A CN106351131B CN 106351131 B CN106351131 B CN 106351131B CN 201610837485 A CN201610837485 A CN 201610837485A CN 106351131 B CN106351131 B CN 106351131B
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- China
- Prior art keywords
- floorings
- bridge
- fillet
- arch
- bed die
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Technical field of construction is built the invention belongs to bridge, more particularly, to a kind of method without the support reformation rigid framed arch bridge floorings, this method comprises the following steps：(a) former floorings are removed and arch rib top projection is abolished, expose stirrup inside projection；(b) angle steel and tripod are installed in arch rib side appropriate location, then lay fillet on angle steel and tripod, floorings bed die is installed above fillet, and cushion block is set between bed die and fillet；(c) reinforcing bar is laid on bed die, and pours bridge deck concrete；(d) after bridge deck concrete reaches design strength, form removal and support system.The remodeling method of the present invention, have the advantages that without setting up support, easy construction and rigid framed arch bridge floorings transformation good integrity from riverbed bottom surface, overcome the drawbacks of transformation large span rigid framed arch bridge bridge floor board mount sets up difficulty or even can not set up support, the load-carrying properties of bridge can be improved simultaneously, floorings globality is improved.
Description
Technical field
Technical field of construction is built the invention belongs to bridge, more particularly, to one kind without the support reformation rigid framed arch bridge bridge
The method of panel, it can improve floorings globality and bridge capacity, effectively solve floorings problem of Cracking.
Background technology
Rigid framed arch bridge is the arch bridge form that more generally uses of China's early stage, the bridge type due to possess saved from heavy and light, material,
The features such as cost is low and economic indicator is preferable, thus obtain extensive construction the seventies and eighties in last century at home, meet
At that time the need for transportation business.However, existing rigid framed arch bridge is low due to design load and strength grade of concrete, arrangement of reinforcement
Few, bridge deck pavement is weak and originally uses collecting and distributing for reasons such as whole construction methods more, as volume of traffic increase is particularly super
The destruction of carrier vehicle, causes the bridge type floorings to occur serious crack, pit mostly, not only influences traffic safety, also
It is serious to threaten bridge security.
For problem above, current solution is usually to remove former concrete slab and pour new coagulation again
Native floorings.However, further study showed that, the rigid framed arch bridge deck pavement reconstruction method of prior art needs to open from riverbed bottom surface mostly
Beginning sets up a large amount of construction brackets, could meet new bridge deck concrete and pour needs.This construction method not only construction period
Long, cost is high, and due to needing to set up support since riverbed bottom surface, risk is high, for the riverbed or gorge that the depth of water is deeper
Valley floor band is even difficult to carry out, it is therefore necessary to it is optimized and improved.Above-mentioned technological difficulties how are solved, are designed a set of
Go and effective remodeling method, improve floorings globality and bridge capacity, effectively solve floorings problem of Cracking, be this hair
It is bright the problem of to solve.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides one kind without the support reformation rigid framed arch bridge bridge
Panel method, wherein the design feature by combining rigid framed arch bridge itself, the critical process step transformed its floorings and behaviour
Make means to be studied and designed, realize without the support reformation rigid framed arch bridge floorings, reach the shortening duration and lower cost, and
Floorings globality and bridge capacity are improved, it is corresponding effectively to solve floorings problem of Cracking.
To achieve the above object, it is proposed, according to the invention, there is provided a kind of method without the support reformation rigid framed arch bridge floorings, its
It is characterised by, this method comprises the following steps：
(a) symmetrical equilibrium removes former floorings, and abolishes the concrete at the top of arch rib on projection, exposes projection inner band
Muscle；
(b) the arch rib side surface upper part in the middle part of arch bridge is installed and installs fillet on angle steel, the angle steel between adjacent arch rib,
The bed die of floorings is installed above the fillet afterwards, and cushion block is uniformly arranged between the bed die and fillet, is led to
Cross and adjust the height of the cushion block to reach regulation and control bed die height and linear purpose；
The side that the arch rib of arch bridge both sides is outer is mounted on tripod, and cushion block is also equipped with the tripod, described
Fillet is also installed on cushion block, the bed die of floorings is installed above the fillet afterwards, by adjusting the cushion block
Height is to reach regulation and control bed die height and linear purpose；
(c) then, reinforcing bar inside floorings is laid on above-mentioned bed die, and makes floorings inside reinforcing bar from projection inner band
Passed through in the middle of muscle, one-piece casting concrete forms new floorings on above-mentioned bed die afterwards；
(d) after bridge floor cast-in-place concrete intensity reaches design strength, angle steel and tripod is unclamped, the cushion block is removed,
The fillet and bed die are progressively removed afterwards, so that final form removal and support system, complete whole rigid framed arch bridge bridge floor
Plate reforming technology.
As it is further preferred that length direction of the fillet along arch bridge is set, set between every two arch ribs
Fillet is parallel two or many.
As it is further preferred that the pad set between width setting of the cushion block along arch bridge, every two arch ribs
Block can be parallel two or many., can be with dispersed bridge by equably setting fillet and cushion block between arch rib
The pressure of panel, improves the stability of support system.
As it is further preferred that the angle steel and tripod are fixed using bolt.
Specifically, in step (a) and (c), by removing projection concrete at the top of arch rib, and retain the stirrup exposed and
Reinforcing bar inside floorings is passed through, arch rib stirrup is embedded in floorings, arch rib is substantially increased and new pours between floorings
Connection, enhance structural integrity and rigidity.In step (b), preferably in arch rib side implantation bolt, angle steel and three is installed
Corner bracket, sets template and adjustment system, can give full play to the bearing capacity of rib structure itself, it is to avoid from river on this basis
Bed sets up support.In step (d), support and template system can be easily removed, no support is realized and safe and efficient
Target.
In general, possess following compared with prior art, mainly by the contemplated above technical scheme of the present invention
Technological merit：
1st, method of the invention is by the design feature of combination rigid framed arch bridge itself, the critical process transformed its floorings
Step and operational means are studied and designed, the invention proposed on this basis have without from riverbed bottom surface set up support,
The advantages of easy construction and rigid framed arch bridge floorings transformation good integrity, overcome transformation large span rigid framed arch bridge bridge floor board mount
The drawbacks of setting up difficulty or even can not set up support, while can improve the load-carrying properties of bridge, improves floorings globality.
2nd, method of the invention is extend into bridge floor in-situ layer by stirrup in arch rib top surface projection, and floorings reinforcing bar
Arch rib stirrup is passed through from inside, the combination of new floorings and arch rib is strengthened, floorings globality is substantially increased and bridge is whole
Body rigidity.And due to improving the connection of floorings and arch rib, improve the degree that floorings participate in structure stress, additionally it is possible to have
Effect improves arch rib section height, so as to greatly improve structural bearing capacity.
3rd, method of the invention installs angle steel and tripod in bar planting mode on arch rib, for supporting fillet and pad
Block, and thereon install floorings lower template, after-pouring bridge deck concrete.This invention gives full play to arch rib itself carrying
Capacity superiority, the support system required for bridge deck concrete is poured is relied on arch rib, it is to avoid from riverbed set up support,
Efficiency of construction is substantially increased, construction risk is reduced and reduces investment outlay.
4th, according to the method without the support reformation rigid framed arch bridge floorings of the present invention, it can be achieved without support quick transformation rigid frame
Arch bridge floorings, and possess many advantages such as be easy to construct and correctional effect is good, while avoiding causing riverbed environment
Destruction, thus possess extensive actual application prospect.
Brief description of the drawings
Fig. 1 is the flow chart of the method without the support reformation rigid framed arch bridge floorings of the present invention.
Fig. 2 is the rigid framed arch bridge floorings transformation support diagrammatic cross-section according to the remodeling method of the present invention.
Fig. 3 is the rigid framed arch bridge detail schematic diagram of the remodeling method according to the present invention.
In all of the figs, identical reference is used for representing identical element or structure, wherein：
Projection at the top of 1-arch rib；Stirrup inside 2-projection；3-bolt；4-angle steel；5-tripod；6-fillet；
7-bed die；8-cushion block；9-floorings；10-arch rib.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
The present invention provides a kind of method without the support reformation rigid framed arch bridge floorings, and this method comprises the following steps：
(a) symmetrical equilibrium removes former floorings, and abolishes the concrete at the top of arch rib on projection 1, exposes projection inner band
Muscle 2；
(b) side surface upper part of arch rib 10 in the middle part of arch bridge, which is installed, installs wood on angle steel 4, the angle steel 4 between adjacent arch rib
Square bar 6, installs floorings bed die 7, and be uniformly arranged between the bed die 7 and fillet 6 in the top of fillet 6 afterwards
Cushion block 8, by adjusting the height of the cushion block 8 to reach the regulation and control height of bed die 7 and linear purpose；
The side that the arch rib 10 of arch bridge both sides is outer is provided with tripod 5, and cushion block is also evenly arranged with the tripod 5
8, fillet 6 is also installed on the cushion block 8, floorings bed die 7 is installed in the top of fillet 6 afterwards, by adjusting
The height of cushion block 8 is stated to reach the regulation and control height of bed die 7 and linear purpose；
(c) then, reinforcing bar inside floorings is laid on above-mentioned bed die 7, and makes floorings inside reinforcing bar inside projection
Passed through in the middle of stirrup 2, one-piece casting concrete forms new floorings 9 on above-mentioned bed die 7 afterwards；
(d) after bridge floor cast-in-place concrete intensity reaches design strength, angle steel 4 and tripod 5 is unclamped, the cushion block is removed
8, the fillet 6 and bed die 7 are progressively removed afterwards, so that final form removal and support system, complete whole rigid framed arch bridge
Floorings reforming technology.
In one particular embodiment of the present invention, length direction of the fillet 6 along arch bridge is set, every two arch ribs
The fillet 6 set between 10 can be parallel two or many.
In one particular embodiment of the present invention, width of the cushion block 8 along arch bridge is set, every two arch ribs it
Between the cushion block that sets can be parallel two or many.
In one particular embodiment of the present invention, the angle steel 4 and tripod 5 are fixed using bolt 3.
Embodiment
Fig. 1 is the flow chart of the method without the support reformation rigid framed arch bridge floorings of the present invention.Fig. 2 is according to the present invention
The rigid framed arch bridge floorings transformation support diagrammatic cross-section of transformation.Fig. 3 is thin according to the rigid framed arch bridge of the remodeling method of the present invention
Merism schematic diagram.
As shown in Figure 1 to Figure 3, the method without the support reformation rigid framed arch bridge floorings mainly includes following operative employee
Sequence：
First, symmetrical equilibrium removes bridge deck, including bridge floor guardrail, mats formation and bridge deck concrete, exposes arch rib, symmetrically
Remove and cause the arch rib stress equalization during Bridge Reconstruction, it is ensured that structure safety；
Then, the projection concrete 1 of former arch rib top surface is removed, exposes stirrup 2 inside projection, should not break in the process
Stirrup 2 inside the projection exposed, so may insure that stirrup 2 extend into the coagulation of floorings 9 newly poured inside the projection exposed
It is native internal, the combination degree of new floorings and former arch rib is improved, is conducive to improving improved rigid framed arch bridge globality；
Then, the side surface upper part of the arch rib 10 implantation bolt 3 in the middle part of arch bridge, installs angle steel 4, adjacent using bolt 3
Fillet 6 is installed on the angle steel 4 between arch rib, floorings bed die 7 is installed in the top of fillet 6 afterwards, and at the bottom
Cushion block 8 is set between mould 7 and fillet 6, by adjusting the height of the cushion block 8 to reach the regulation and control height of bed die 7 and linear mesh
's；
The side that the arch rib 10 of arch bridge both sides is outer is provided with tripod 5 using bolt, is provided with the tripod 5
Fillet 6 is installed on cushion block 8, the cushion block 8, floorings bed die 7 is installed in the top of fillet 6 afterwards, by adjusting
The height of cushion block 8 is stated to reach the regulation and control height of bed die 7 and linear purpose；, can be abundant using such support and template system
The bearing capacity of the structure itself of arch rib 10 is played, from from riverbed bottom surface erection construction support.
Then, reinforcing bar inside floorings is laid on bed die 7, and ensures floorings inside reinforcing bar from stirrup 2 inside projection
Centre is passed through, and can so be greatly improved arch rib and newly be poured the contiguity of floorings 9.Treat all reinforcing bars in the inside of floorings 9
After installing, one-piece casting concrete forms new floorings 9, carries out concrete curing.
Finally, after the concrete strength of bridge floor 9 newly poured reaches design strength, arch rib side bolt is turned on, angle is unclamped
Steel and tripod, remove cushion block, horizontal fillet and bed die, final form removal and support system are progressively removed afterwards, then
Construction bridge deck, thus completes whole rigid framed arch bridge floorings reforming technology.
In summary, by combining the design feature of rigid framed arch bridge itself in the present invention, the key that its floorings is transformed
Processing step and operational means are studied and designed, and the invention proposed on this basis has without setting up branch from riverbed bottom surface
The advantages of frame, easy construction and rigid framed arch bridge floorings transformation good integrity, overcome transformation large span rigid framed arch bridge floorings
The drawbacks of support sets up difficulty or even can not set up support, while can improve the load-carrying properties of bridge, improves floorings whole
Body.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (4)
1. a kind of method without the support reformation rigid framed arch bridge floorings, it is characterised in that this method comprises the following steps：
(a) symmetrical equilibrium removes former floorings, and abolishes the concrete at the top of arch rib on projection (1), exposes stirrup inside projection
(2)；
(b) arch rib (10) side surface upper part in the middle part of arch bridge is installed and installed on angle steel (4), the angle steel (4) between adjacent arch rib
Fillet (6), installs the bed die (7) of floorings above the fillet (6) afterwards, and in the bed die (7) and fillet
(6) cushion block (8) is uniformly arranged between, by adjusting the height of the cushion block (8) with reach the above-mentioned bed die (7) of regulation and control highly with it is linear
Purpose；
The side that the arch rib (10) of arch bridge both sides is outer is mounted on tripod (5), is evenly arranged with the tripod (5)
Fillet (6) is installed on cushion block (8), the cushion block (8), the bed die of floorings is installed above the fillet (6) afterwards
(7), by adjusting the height of the cushion block (8) with reach the above-mentioned bed die (7) of regulation and control highly with linear purpose；
(c) then, reinforcing bar inside floorings is laid on above-mentioned bed die (7), and makes floorings inside reinforcing bar from projection inner band
Passed through in the middle of muscle (2), one-piece casting concrete forms new floorings (9) on above-mentioned bed die (7) afterwards；
(d) after bridge floor cast-in-place concrete intensity reaches design strength, above-mentioned angle steel (4) and tripod (5) are unclamped, is removed described
Cushion block (8), progressively removes the fillet (6) and bed die (7) afterwards, so that final form removal and support system, are completed whole
Individual rigid framed arch bridge floorings reforming technology.
2. the method as claimed in claim 1 without the support reformation rigid framed arch bridge floorings, it is characterised in that the fillet
(6) set along the length direction of arch bridge, the fillet (6) set between every two arch ribs (10) is parallel two or many.
3. the method as claimed in claim 1 or 2 without the support reformation rigid framed arch bridge floorings, it is characterised in that the cushion block
(8) set along the width of arch bridge, the cushion block (8) set between every two arch ribs (10) is parallel two or many.
4. the method as claimed in claim 3 without the support reformation rigid framed arch bridge floorings, it is characterised in that the angle steel (4)
It is fixed using bolt (3) with tripod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837485.9A CN106351131B (en) | 2016-09-21 | 2016-09-21 | A kind of method without the support reformation rigid framed arch bridge floorings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837485.9A CN106351131B (en) | 2016-09-21 | 2016-09-21 | A kind of method without the support reformation rigid framed arch bridge floorings |
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| Publication Number | Publication Date |
|---|---|
| CN106351131A CN106351131A (en) | 2017-01-25 |
| CN106351131B true CN106351131B (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610837485.9A Expired - Fee Related CN106351131B (en) | 2016-09-21 | 2016-09-21 | A kind of method without the support reformation rigid framed arch bridge floorings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116428248A (en) * | 2023-04-13 | 2023-07-14 | 华中科技大学 | Adjustable fixing device for arch feet of plate arch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0861354B1 (en) * | 1995-11-14 | 2001-10-10 | Jada AB | Method for building a bridge and bridge built according to said method |
| JP5279566B2 (en) * | 2009-03-18 | 2013-09-04 | 株式会社Ｉｈｉインフラシステム | Synthetic floor slab |
| CN102392421B (en) * | 2011-11-23 | 2014-04-09 | 武汉理工大学 | Small-town arch bridge local widening and reinforcing method based on characteristic of tidal traffic flow |
| CN104532760B (en) * | 2014-12-16 | 2015-10-21 | 华中科技大学 | The reinforcement means of a kind of simply supported slab or simply supported beam bridge |
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| CN106351131A (en) | 2017-01-25 |
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Granted publication date: 20170818 Termination date: 20200921 |