CN109457608A - A kind of construction method of prefabricated steel reinforced concrete combined bridge deck - Google Patents
A kind of construction method of prefabricated steel reinforced concrete combined bridge deck Download PDFInfo
- Publication number
- CN109457608A CN109457608A CN201811477789.4A CN201811477789A CN109457608A CN 109457608 A CN109457608 A CN 109457608A CN 201811477789 A CN201811477789 A CN 201811477789A CN 109457608 A CN109457608 A CN 109457608A
- Authority
- CN
- China
- Prior art keywords
- bridge deck
- prefabricated
- steel
- concrete
- floorings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of construction methods of prefabricated steel reinforced concrete combined bridge deck, the construction method is the following steps are included: A, prefabricated steel reinforced concrete combined bridge deck include Orthotropic steel bridge deck structure, Orthotropic steel bridge deck structure includes steel bridge deck and U-shaped floor of putting more energy into, and several weldering nail shear connectors are arranged on steel bridge deck；B, after a certain period of time, the scene that is transported to prepares lifting for concrete prefabricated floorings storage, and the preformed hole with weldering nail shear connector cooperation is equipped in concrete prefabricated floorings；C, it is laid with epoxy bonds layer in steel bridge deck apical margin, while is placed prefabricated board in place using pre-buried suspension hook in concrete prefabricated board, so that several weldering nail shear connectors are inserted into corresponding preformed hole；With high-strength epoxy mortar entirety packing preformed hole；Seam is watered between concrete prefabricated floorings after and forms entirety.The type floorings have higher promotional value in aspects such as applicability, economy, processing quality, construction periods, have developing meaning to some reference.
Description
Technical field
The present invention relates to technical field of bridge engineering, specifically a kind of construction party of prefabricated steel reinforced concrete combined bridge deck
Method.
Background technique
Steel-mixes combined bridge because its applicability, economy and construction convenience have been widely adopted, but considers ordinary concrete
Floorings self weight is larger, therefore its across footpath often becomes limiting factor.It is general still using orthogonal different for Loads of Long-span Bridges
Property Steel Bridge Deck structural system.Since the system floorings Out-of Plane Stiffness is weaker, fatigue crack easily is generated under Vehicle Load,
There is presently no mature measure solutions, therefore it is barely satisfactory in terms of durability.
Steel reinforced concrete combined bridge deck starts from the Japan of the sixties in last century, and certain application and hair are obtained in the beginning of this century
The advantages of opening up, combining normal strength concrete slab and steel bridge deck because of it, is increasingly taken seriously at present.But traditional steel reinforced concrete combination
Floorings inevitably generate concrete shrinkage crack mostly using Steel Bridge Deck as concreting mould bases, and with
The reduction (reduction of construction weight) of concrete plate thickness, crack can be more easier to generate.Additionally, due to site operation, concrete layer construction
Geometric accuracy be also difficult to be guaranteed.
Summary of the invention
The purpose of the present invention is to provide a kind of construction methods of prefabricated steel reinforced concrete combined bridge deck, in conjunction with ordinary concrete bridge floor
The advantages of plate, Orthotropic Steel Bridge Deck and traditional cast-in-place steel reinforced concrete combined bridge deck, thus make that structure is reasonable, cost warp
Ji, simple structure are easy for construction.
To achieve the goals above, technical scheme is as follows: a kind of construction party of prefabricated steel reinforced concrete combined bridge deck
Method, comprising the following steps:
A, prefabricated steel reinforced concrete combined bridge deck includes Orthotropic steel bridge deck structure, and Orthotropic steel bridge deck structure includes steel bridge deck
And U-shaped floor of putting more energy into, several welderings nail shear connectors are set on steel bridge deck；
B, after a certain period of time, the scene that is transported to prepares lifting for concrete prefabricated floorings storage, is equipped in concrete prefabricated floorings
With the preformed hole of weldering nail shear connector cooperation；
C, it is laid with epoxy bonds layer in steel bridge deck apical margin, while is placed prefabricated board using suspension hook pre-buried in concrete prefabricated board
In place, so that several weldering nail shear connectors are inserted into corresponding preformed hole；
D, with high-strength epoxy mortar entirety packing preformed hole；
E, seam is watered after between concrete prefabricated floorings form entirety.
Further, concrete prefabricated floorings plate thickness is 80mm ~ 160mm, and precast construction can avoid early-age shrinkage cracking
Generation.
Further, by the way that vertically and horizontally last-cost joint realizes concrete prefabricated floorings between plate between concrete prefabricated floorings
Connection, trapezoidal notch is arranged in concrete prefabricated floorings edge, to reinforce vertically and horizontally resisting for prefabricated bridge and cast-in-place seam
Cut ability.
Further, use UHPC high strength concrete as cast-in-place seam filler between concrete prefabricated floorings.
Further, such as practical structure bridge panel tensile stress is larger, then it is mixed that steel fibre can be used in concrete prefabricated floorings
Solidifying soil is solved by way of cable stay bridge panel in vitro/in vivo steel beam.
Further, diameter 45 ~ 60mm circular hole can be used in concrete prefabricated floorings preformed hole, comprehensively consider floorings by
Power and construction convenience, circular hole lay vertically and horizontally between be divided into 300 ~ 600mm, by the later period insert high-strength epoxy mortar realize with
The connection of floorings corresponding position WELDING STUDS.
Further, the concrete prefabricated floorings are embedded with suspension hook.
Further, the Steel Bridge Deck plate thickness of Orthotropic steel bridge deck structure be 10mm ~ 12mm, U-shaped ribbed stiffener plate thickness be 5 ~
7mm, 250 ~ 350mm of height, is spaced 600~900mm, is in inverted trapezoidal, the position of circular hole is reserved in conjunction with precast concrete floorings,
The weldering that arrangement specification is φ 16 above steel bridge deck is followed closely, and 80~120mm of staple height is welded, and is inserted high-strength mortar by the later period and is realized
With the connection of floorings corresponding position shear connector.
Main advantages of the present invention are: the present invention combines after using steel reinforced concrete, and concrete plate is not involved in stress early period, and reduction is opened
It splits, therefore concrete bridge plate can select ordinary concrete, reduce cost；Simultaneously because the advantages of precast construction itself, quality is easy to
Control.Floorings of the present invention are inserted into the preformed hole of concrete prefabricated floorings using weldering nail shear connector, using high-strength epoxy
Mortar entirety packing preformed hole can greatly reduce concrete plate cracking so that prestressing effect is similar to prefabricated board " group's nail " principle
Possibility.Prefabricated steel reinforced concrete combined bridge deck of the invention combines common concrete bridge plate, Orthotropic Steel Bridge Deck and tradition existing
The advantages of pouring steel reinforced concrete combined bridge deck, the floorings structural form can effectively solve the problem that conventional orthogonal opposite sex floorings fatigue crack
Generation, improve the durability of bridge.In conclusion the type combined bridge deck applicability, economy, processing quality,
The aspects such as construction period have higher promotional value, have developing meaning to some reference.
Detailed description of the invention
Fig. 1 is prefabricated steel reinforced concrete combined bridge deck cross-section diagram.
Fig. 2 is precast concrete floorings plan view.
Fig. 3 is precast concrete floorings reinforcing bar and weldering nail arrangement schematic diagram.
Fig. 4 is precast concrete floorings preformed hole backfilling mortar schematic diagram.
Fig. 5 is prefabricated steel reinforced concrete combined bridge deck layout drawing.
Specific embodiment
It is further detailed to a kind of prefabricated steel reinforced concrete combined bridge deck work proposed by the present invention below in conjunction with drawings and concrete examples
It describes in detail bright.According to following explanation and claims, advantages and features of the invention will be become apparent from.It should be noted that attached drawing is equal
Using very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention
Purpose.
Illustrate a kind of prefabricated steel reinforced concrete combined bridge deck of this example, including precast concrete floorings 1 in conjunction with Fig. 1 to Fig. 5
With Orthotropic steel bridge deck structure 2, the precast concrete floorings 1 include vertically and horizontally regular reinforcement 10, orthotropic plate
Face structure includes steel bridge deck 2 and U-shaped ribbed stiffener 3, and the steel bridge deck 2 is equipped with weldering nail shear connector 7, steel bridge deck 2 and pre-
Epoxy bonds layer 9 is set between concrete slab 1 processed.
Concrete slab 1 uses precast construction, and edge is arranged trapezoidal notch 5 and reinforces prefabricated board and cast-in-place seam 11 vertically and horizontally
Shear resistance.Diameter 50mm preformed hole 4 is set in concrete prefabricated board 1, and the vertically and horizontally interval of laying is 600mm, this is reserved
It hole must be corresponding with weldering nail 7 position of shear connector.
Concrete prefabricated board is stored after a certain period of time (180 days), is transported to scene and is prepared lifting.It need to be in steel bridge deck when lifting
Apical margin is laid with epoxy bonds layer 9, while placing prefabricated board in place using pre-buried suspension hook 6, finally uniformly uses high-strength epoxy
The whole packing preformed hole 4 of mortar 8.The present invention combines after using steel reinforced concrete, and concrete plate is not involved in stress early period, reduces cracking.
Preferably, the preformed hole includes the reverse taper hole of superposed straight hole and straight hole bottom, and bottom sets back taper
Hole can facilitate prefabricated bridge in-site installation.
Seam 11 is watered between precast slab after and forms entirety.Since cast-in-place concrete seam portion shrinkage and creep is imitated
Answer larger, additional floorings plate thickness is smaller, (in general, cast-in-place seam only accounts under the premise of excessively not increasing floorings cost
To 20% or so of floorings total amount), UHPC high strength concrete can be used as cast-in-place seam filler to avoid the generation in crack.
The construction method of prefabricated steel reinforced concrete combined bridge deck of the invention the following steps are included:
A, prefabricated steel reinforced concrete combined bridge deck includes Orthotropic steel bridge deck structure, and Orthotropic steel bridge deck structure includes steel bridge deck
And U-shaped floor of putting more energy into, several welderings nail shear connectors are set on steel bridge deck；
B, after a certain period of time, the scene that is transported to prepares lifting for concrete prefabricated floorings storage, is equipped in concrete prefabricated floorings
With the preformed hole of weldering nail shear connector cooperation；
C, it is laid with epoxy bonds layer in steel bridge deck apical margin, while is placed prefabricated board using suspension hook pre-buried in concrete prefabricated board
In place, so that several weldering nail shear connectors are inserted into corresponding preformed hole；
D, with high-strength epoxy mortar entirety packing preformed hole；
E, seam is watered after between concrete prefabricated floorings form entirety.
Due to making precision and construction Deformation etc., between precast concrete and steel bridge deck interface inevitably
There can be gap, moisture rainwater, which penetrates into, probably influences floorings durability.For considering in this respect, in steel while erecting plate
Mixed interface is laid with epoxy bonds layer, for levelling and closing interface, to improve its durability.
Compared to normal concrete or pure steel structure floorings, either along bridge to or direction across bridge load-carrying members, lotus
Carrying local effect often becomes design governing factor.Steel reinforced concrete combined bridge deck can then give full play to the advantages of compound section, energy
Enough mitigate floorings system weight and saves cost.Due to becoming composite structure, the type floorings and common precast concrete phase
Than the thickness for reducing concrete plate, mitigate weight；Reduce steel plate thickness compared with general orthotropic steel bridge deck system and increases U
Type is put more energy into rib space, the problem of reducing bridge deck rolled steel dosage, while avoiding steel bridge deck fatigue cracking；With it is general cast-in-place
Combined bridge deck is compared, and floorings batch production manufacture, quality is easier to guarantee, early period, crack was few, while can store certain time
After install, reduce shrinkage and creep on structure influence.Concrete grillage is set using steel plate as bracket, while can be spread in steel reinforced concrete interface
If epoxy bonds layer is for levelling and closing steel concrete interface, to improve the durability of combined bridge deck.
With thickness 15cm concrete prefabricated board, steel bridge deck plate thickness 12mm, the interval U rib plate thickness 6mm(720mm) it is prefabricated
For steel reinforced concrete combined bridge deck, compared with the concrete slab of general thickness 25cm, reduce by about 20% bridge deck weight；With
The interval general thickness 16mm, U rib plate thickness 8mm(600mm) pure steel structure floorings compare, reduce about 30% rolled steel dosage.?
Construction size can be advanced optimized on the basis of this, to further increase the economic advantages of steel reinforced concrete combined bridge deck.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (6)
1. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck, it is characterised in that the construction method the following steps are included:
A, prefabricated steel reinforced concrete combined bridge deck includes Orthotropic steel bridge deck structure, and Orthotropic steel bridge deck structure includes steel bridge deck
And U-shaped floor of putting more energy into, several welderings nail shear connectors are set on steel bridge deck；
B, after a certain period of time, the scene that is transported to prepares lifting for concrete prefabricated floorings storage, is equipped in concrete prefabricated floorings
With the preformed hole of weldering nail shear connector cooperation；
C, it is laid with epoxy bonds layer in steel bridge deck apical margin, while is placed prefabricated board using suspension hook pre-buried in concrete prefabricated board
In place, so that several weldering nail shear connectors are inserted into corresponding preformed hole；
With high-strength epoxy mortar entirety packing preformed hole；
Seam is watered between concrete prefabricated floorings after and forms entirety.
2. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck as described in claim 1, it is characterised in that concrete prefabricated
Floorings plate thickness is 80mm ~ 160mm, and precast construction can avoid the generation of early-age shrinkage cracking.
3. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck as described in claim 1, it is characterised in that the concrete
Prefabricated bridge uses steel fiber reinforced concrete.
4. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck as described in claim 1, it is characterised in that the concrete
Cable stay bridge panel in vitro/in vivo steel beam in prefabricated bridge.
5. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck as described in claim 1, it is characterised in that concrete prefabricated
Floorings preformed hole is divided into 300 ~ 600mm between using 45 ~ 60mm of diameter circular hole, circular hole to lay vertically and horizontally.
6. a kind of construction method of prefabricated steel reinforced concrete combined bridge deck as claimed in claim 5, it is characterised in that orthotropic steel
The Steel Bridge Deck plate thickness of bridge deck structure is 10mm ~ 12mm, and U-shaped ribbed stiffener plate thickness is 5 ~ 7mm, highly 250 ~ 350mm, interval 600~
900mm is in inverted trapezoidal, and the weldering that arrangement specification is φ 16 above steel bridge deck is followed closely, and welds 80~120mm of staple height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477789.4A CN109457608A (en) | 2018-12-05 | 2018-12-05 | A kind of construction method of prefabricated steel reinforced concrete combined bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477789.4A CN109457608A (en) | 2018-12-05 | 2018-12-05 | A kind of construction method of prefabricated steel reinforced concrete combined bridge deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109457608A true CN109457608A (en) | 2019-03-12 |
Family
ID=65612392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477789.4A Pending CN109457608A (en) | 2018-12-05 | 2018-12-05 | A kind of construction method of prefabricated steel reinforced concrete combined bridge deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109457608A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930466A (en) * | 2019-04-10 | 2019-06-25 | 西南交通大学 | Steel-ECC- concrete combination beam and preparation method thereof |
| CN110055892A (en) * | 2019-05-13 | 2019-07-26 | 华南理工大学 | A kind of steel reinforced concrete combination beam deck installation structure and construction method |
| WO2021077817A1 (en) * | 2019-10-22 | 2021-04-29 | 江苏中路工程技术研究院有限公司 | Precast ultra-high-performance concrete steel bridge deck pavement structure and preparation method |
-
2018
- 2018-12-05 CN CN201811477789.4A patent/CN109457608A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930466A (en) * | 2019-04-10 | 2019-06-25 | 西南交通大学 | Steel-ECC- concrete combination beam and preparation method thereof |
| CN109930466B (en) * | 2019-04-10 | 2024-06-04 | 西南交通大学 | Steel-ECC-concrete composite beam and preparation method thereof |
| CN110055892A (en) * | 2019-05-13 | 2019-07-26 | 华南理工大学 | A kind of steel reinforced concrete combination beam deck installation structure and construction method |
| WO2021077817A1 (en) * | 2019-10-22 | 2021-04-29 | 江苏中路工程技术研究院有限公司 | Precast ultra-high-performance concrete steel bridge deck pavement structure and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104831617B (en) | Steel-ultra-high performance concrete combination beam based on fin-plate type bridge floor and construction method | |
| CN107476476B (en) | One kind is greatly across steel bar truss floor support plate and reinforced beam combination constructing method thereof | |
| CN105839510B (en) | A kind of steel and ultra-high performance concrete composite continuous bridge structure and its construction method | |
| CN212404825U (en) | Prefabricated plate joint structure with bottom die | |
| CN105002816B (en) | The fish belly I shape prestressing force steel reinforced concrete composite continuous bridge of precast assembly and construction method | |
| CN109457608A (en) | A kind of construction method of prefabricated steel reinforced concrete combined bridge deck | |
| CN109853381B (en) | Transitional structure for preventing bridge head from jumping and construction method thereof | |
| CN104947603B (en) | A kind of rc beam bridge girder reinforcing construction and reinforcement means | |
| CN110396918A (en) | A kind of equivalent cast-in-place assembled hollow pier system and its construction method | |
| CN106869012B (en) | Using the prefabricated thin-wall bent cap of prestressing with bond system | |
| CN106013432A (en) | Joint connecting structure in high-ductility assembled integrated frame and construction method | |
| CN213868496U (en) | Bidirectional laminated plate prestress close-splicing structure | |
| CN104652242B (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN209523119U (en) | A kind of prefabricated steel reinforced concrete combined bridge deck | |
| CN108265867A (en) | A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate and its construction method of muscle | |
| CN110055979A (en) | For the precast prestressed concrete anchor pier of slope reinforcement and production and construction method | |
| CN108316513A (en) | A kind of rapid construction assembly of shear wall structure and its construction method | |
| CN104878871B (en) | Dry type connection precast slab, superstructure and its anti-seismic performance method for improving | |
| CN110042770A (en) | A method of using the original bridge of external prestressing steel Shu Tuokuan in length and breadth | |
| CN206769200U (en) | First wear formula post stretching vertical prestressing cast-in-place concrete rod structure | |
| CN109457609A (en) | A kind of prefabricated steel reinforced concrete combined bridge deck | |
| CN106337512B (en) | Bottom reinforced steel pipe concrete frame high-strength concrete compound shear wall and production method | |
| CN102808372B (en) | The integral precast overlapping bridge of a kind of freely-supported and construction method | |
| CN209941467U (en) | Assembled stride ultra high performance concrete box girder combination formula node greatly | |
| CN208830465U (en) | A kind of prefabricated U HPC shell local enhancement assembly concrete frame structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |