CN106149562B - A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs - Google Patents
A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs Download PDFInfo
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- CN106149562B CN106149562B CN201610475000.6A CN201610475000A CN106149562B CN 106149562 B CN106149562 B CN 106149562B CN 201610475000 A CN201610475000 A CN 201610475000A CN 106149562 B CN106149562 B CN 106149562B
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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
- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs, it is high and the characteristics of from heavy and light to have both bearing capacity, the effectively simplified construction measure with girder junction, the difficulty and bridge deck difficulty of construction for reducing manufacture of steel structure and welding procedure are conducive to the construction quality for promoting floorings.Forming the combined bridge deck plate unit of splicing on girder including at least two, combined bridge deck plate unit includes bottom steel plate and pours cast in place concrete plate thereon, and the shear connector for being connected as one bottom steel plate, cast in place concrete plate, it is characterized in that：The shear connector includes being embedded in cast in place concrete plate reinforcing bar shear connector, and the T-type ribbed stiffener with holes longitudinally extended that is horizontally arranged at interval on the steel plate of bottom；The section of each T-type ribbed stiffener with holes is T-shaped, and the through-hole of longitudinal gap is offered in vertical plate face, and the lower end of vertical plate face and bottom steel plate face are welded to connect；The bottom steel plate face and the straight top plate plate face overlap joint welding of girder, the cast in place concrete plate one-piece casting form, and the thickness of each section of cast in place concrete plate is equal.
Description
Technical field
The present invention relates to composite bridge, in particular to the steel-concrete of the ultra-thin T-type ribbed stiffener with holes of a kind of uniform thickness
Combined bridge deck.
Technical background
In the design process of bridge, to mitigate self weight to widen use scope, bridge deck should make every effort to lightness, while be side
Just industrialization manufacture is installed, and should simplify the construction measure and construction technology of bridge deck as far as possible.The bridge of science of bridge building application at present
Panel generally uses ordinary reinforced concrete floorings, steel bridge deck, composite girder bridge panel or steel concrete combined bridge front panel.
Ordinary reinforced concrete floorings occupy larger specific gravity from focusing in bridge total load head, and when bridge span is big is inadequate
It is economical；Steel bridge deck is from heavy and light, but steel using amount is larger, cost is high, and bending stiffness is small, is also easy to produce biggish local deformation, mats formation
Layer poor high temperature stability leads to cracking easy to aging；Composite girder bridge panel low cost, technology relative maturity, but thickness is generally greater than
20cm, from great, wet seam and girder steel junction disease are more in length and breadth between plate；Steel concrete combined bridge front panel is from heavy and light, bearing capacity
It is high, durability is good, but high to steel member manufacture and welding process requirement, constructed at support connect with girder it is more complex, to applying
Work technique is more demanding.
Therefore, it is necessary to invent a kind of novel floorings, it is high and the characteristics of from heavy and light to have both bearing capacity, while simplifying structure
Construction is convenient for construction, to ensure the construction quality of concrete slab construction under various conditions.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of steel-concretes of the ultra-thin T-type ribbed stiffener with holes of uniform thickness
Combined bridge deck plate structure, it is high and the characteristics of from heavy and light to have both bearing capacity, effectively the simplified construction measure with girder junction, drop
The low difficulty and bridge deck difficulty of construction of manufacture of steel structure and welding procedure are conducive to the construction quality for promoting floorings.
The technical solution adopted by the present invention to solve the technical problems is as follows：
A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness of the invention constructs, including at least
Two form the combined bridge deck plate unit of splicing on girder, and combined bridge deck plate unit includes bottom steel plate and pours showing thereon
Pouring concrete plate, and the shear connector for being connected as one bottom steel plate, cast in place concrete plate, it is characterized in that：The shear connector packet
It includes and is embedded in cast in place concrete plate reinforcing bar shear connector, and the T-type with holes longitudinally extended that is horizontally arranged at interval on the steel plate of bottom adds
Strength rib；The section of each T-type ribbed stiffener with holes is T-shaped, by lower edge and bottom steel plate face welding riser and be fixedly welded on riser
The flange plate of upper limb is constituted, and the through-hole of longitudinal gap is offered in vertical plate face；The bottom steel plate face and girder are straight
Top plate plate face overlap joint welding, the cast in place concrete plate one-piece casting form, and the thickness of each section of cast in place concrete plate is equal.
The invention has the advantages that alleviating structure certainly compared with existing reinforced concrete bridge deck plate, overlapping floorings
Weight, improves the span ability of main structure；Compared with steel bridge deck, steel using amount has been saved, has reduced cost, has improved structure
Durability；Compared with existing steel concrete combined bridge front panel, support construction, the thickness of each section of cast in place concrete plate are eliminated
Spend it is equal, simplify steel member manufacture and welding procedure, ensured the industrialized construction of bridge structure, improve floorings bear it is curved
The bearing capacity of square section；Cast-in-place concrete uses the hybrid fiber concrete of blending steel fibre and polyacrylonitrile fibre, improves
The durability of floorings extends its service life.
Detailed description of the invention
This specification includes following five width attached drawing：
Fig. 1 is vertical section (bridge length direction) structural schematic diagram of existing steel concrete combined bridge front panel.
Fig. 2 is the cross-sectional structure schematic diagram of existing steel concrete combined bridge front panel.
Component and corresponding label are shown in Fig. 1, Fig. 2：Bottom steel plate 11, it is perforated steel plate 2, cast in place concrete plate 13, with holes
Transverse steel 4 in steel plate hole, bends up longitudinal reinforcement 7, peg 8, support steel plate 9 at transverse steel 15, longitudinal reinforcement 16 outside hole.
Fig. 3 is a kind of the vertical disconnected of the steel concrete combined bridge front panel construction of T-type ribbed stiffener with holes that uniform thickness is ultra-thin of the present invention
Face (bridge length direction) structural schematic diagram.
Fig. 4 is a kind of the transversal of the steel concrete combined bridge front panel construction of T-type ribbed stiffener with holes that uniform thickness is ultra-thin of the present invention
Face structural schematic diagram.
Fig. 5 is the enlarged drawing of the part A in Fig. 3；
Component and corresponding label are shown in Fig. 3, Fig. 4：Girder A, bottom steel plate 11, T-type ribbed stiffener 12 with holes, riser 12a,
Flange plate 12b, cast in place concrete plate 13, transverse steel 14, transverse steel 15, longitudinal reinforcement 16, girder ribbed stiffener 17, top outside hole
Plate 18.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Showing in Fig. 1, Fig. 2 is existing steel concrete combined bridge front panel structure, specifically include bottom steel plate 11 and pour in
Cast in place concrete plate 13 thereon, and the shear connector for being connected as one bottom steel plate 11, cast in place concrete plate 13.The shearing
Key includes the perforated steel plate 2 being welded on bottom steel plate 11, and reinforcing bar shear connector of the welding (fixation) more than 11 face of bottom steel plate.
The cast in place concrete plate 13 is formed by pouring in the concrete in 11 plate face of bottom steel plate, and reinforcing bar shear connector is embedded in it
It is interior.The reinforcing bar shear connector includes transverse steel 4 in perforated steel plate hole, transverse steel 15 and longitudinal reinforcement 16 outside hole.It is described
Bottom steel plate 11 and girder A link position (hogging moment area) add shear connector peg 8 and bend up longitudinal reinforcement 7, and pass through support steel
Plate 9 welds bottom steel plate 11 and girder A.Steel concrete combined bridge front panel has from heavy and light, the spy that bearing capacity is high and durability is good
Point, but at holding position steel member manufacture and welding process requirement it is higher, construction is complicated and construction is cumbersome, is unfavorable for bridge
The wider application of panel.
Referring to Fig. 3 and Fig. 4 and Fig. 5, a kind of steel-concrete of the ultra-thin T-type ribbed stiffener with holes of uniform thickness of the invention is combined
Bridge floor plate structure, forms the combined bridge deck plate unit of splicing including at least two on girder A, and combined bridge deck plate unit includes bottom
Steel plate 11 and cast in place concrete plate 13 thereon is poured, and is connected as one bottom steel plate 11, cast in place concrete plate 13
Shear connector, it is characterized in that：The shear connector includes being embedded in 13 reinforcing bar shear connector of cast in place concrete plate, and in bottom steel plate 11
On be horizontally arranged at interval the T-type ribbed stiffener 12 with holes longitudinally extended；The section of T-type ribbed stiffener 12 with holes is T-shaped, by lower edge with
The riser 12a of 11 plate face of bottom steel plate welding and the flange plate 12b for being fixedly welded on riser 12a upper limb are constituted, in vertical plate face
Offer the through-hole of longitudinal gap.11 plate face of bottom steel plate and girder A straight 18 plate face overlap joint welding of top plate, it is described cast-in-place
13 one-piece casting of concrete slab forms, and the thickness of each section of cast in place concrete plate 13 is equal.
The T-type ribbed stiffener 12 with holes can use overall structure, can also use the one of welded connecting as shown in Figure 5
Body structure, i.e., the riser 12a and be fixedly welded on perpendicular that the described T-type ribbed stiffener 12 with holes is welded by lower edge with 11 plate face of bottom steel plate
The flange plate 12b of plate 12a upper limb is constituted,
Referring to FIG. 1, FIG. 2 and FIG. 4, the composite steel concrete bridge of the ultra-thin T-type ribbed stiffener with holes of a kind of uniform thickness of the invention
Panel construction replaces perforated steel plate straight in existing steel concrete combined bridge front panel with T-type ribbed stiffener 12 with holes, and eliminates
The support of girder connecting portion constructs, and the thickness of each section of cast in place concrete plate is equal, simplifies steel member manufacture and Welder
Skill has ensured the industrialized construction of bridge structure, improves the bearing capacity of floorings negative moment area.With existing armored concrete
Floorings, overlapping floorings are compared, and are alleviated dead load, are improved the span ability of main structure；Compared with steel bridge deck,
Steel using amount has been saved, cost is reduced, has improved the durability of structure.
Referring to Fig. 3 and Fig. 4, the cast in place concrete plate 13 is poured using hybrid fiber concrete, wherein incorporation is poly-
0.6~1.0kg/m of acrylonitrile3, 35~45kg/m of mixing of steel fiber3, thickness is not more than 16cm, realizes ultra-thin, can effectively drop
The construction cost of low bridge deck.Bottom steel plate 11 is also used as cast in place concrete plate both as the stressed member of combined bridge deck
13 template reduces the form work engineering of floorings, saves the construction period.
Referring to Fig. 4 and Fig. 5, T-type ribbed stiffener 12 with holes is the shear connector between bottom steel plate and concrete, by setting on rib top
Flange plate is set, increases the steel using amount of floorings section-top, can substantially increase the tension reinforcement of negative moment area floorings
The ratio of reinforcement improves the strength and stiffness and cracking resistance of the decking in the negative moment region, while bottom steel plate 11 and cast-in-place concrete
Reinforcing bar shear connector is set between plate 13, provides higher strength and stiffness for combined bridge deck.
Referring to Fig. 4 and Fig. 5, be horizontally arranged at interval 12 He of T type ribbed stiffener with holes longitudinally extended in 18 plate face of top plate
Girder ribbed stiffener 17 offers through-hole corresponding with T-type ribbed stiffener 12 with holes in 17 plate face of girder ribbed stiffener.The reinforced shear
Power key includes transverse steel 14, transverse steel 15 and longitudinal reinforcement 16 outside hole, and 15 longitudinal gap of transverse steel is set to the wing outside hole
It is welded to connect on listrium 12b and therewith, transverse steel 14 passes through each girder ribbed stiffener 17, logical in 17 plate face of girder ribbed stiffener
Hole, longitudinal reinforcement 16 are being horizontally arranged at interval between transverse steel 15 outside transverse steel 14, hole.
A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness of the invention constructs and shows
There are all kinds of floorings to compare, there are following features：
1, it is verified through model test, compared with reinforced concrete bridge deck plate, when there is same self weight, component ultimate bearing capacity
It can be improved 1.4~2.2 times；When with identical ultimate bearing capacity, dead load about 62% can be reduced, main structure is greatly improved
Span ability.
2, compared with steel bridge deck, saving steel dosage is more than 51%, while solving overlapping bridge floor and steel bridge deck paving
The more problem of the evil that pretends to be sick, improves durability.
3, compared with existing steel concrete combined bridge front panel, steel plate and corresponding reinforcement constitution at support is eliminated, is thinned
With girder junction 10~12cm of concrete thickness, difficulty of construction is reduced, improves the decking in the negative moment region bearing capacity 15%,
Amount of concrete 19% can be saved, is shortened the construction period 20~40 days.
The above is a kind of steel-concrete group for the T-type ribbed stiffener with holes that uniform thickness is ultra-thin of the present invention that explains through diagrams
The some principles for closing bridge floor plate structure are not intended to for the present invention to be confined to shown and described specific structure and the scope of application
It is interior, therefore all corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (5)
1. a kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs, including at least two in girder
(A) the combined bridge deck plate unit of splicing is formed on, combined bridge deck plate unit includes bottom steel plate (11) and pours thereon cast-in-place
Concrete slab (13), and the shear connector for being connected as one bottom steel plate (11), cast in place concrete plate (13), it is characterized in that：Institute
Stating shear connector includes being embedded in cast in place concrete plate (13) reinforcing bar shear connector, and be horizontally arranged at interval on bottom steel plate (11) vertical
To the T-type ribbed stiffener (12) with holes of extension；The section of each T-type ribbed stiffener (12) with holes is T-shaped, by lower edge and bottom steel plate (11) plate
The riser (12a) of face welding and the flange plate (12b) for being fixedly welded on riser (12a) upper limb are constituted, and are opened up on riser (12a)
There is the through-hole of longitudinal gap；Bottom steel plate (11) plate face and girder (A) straight top plate (18) plate face overlap joint welding, it is described existing
Pouring concrete plate (13) one-piece casting forms, and the thickness of cast in place concrete plate (13) each section is equal.
2. a kind of steel concrete combined bridge front panel construction of the ultra-thin T-type ribbed stiffener with holes of uniform thickness as described in claim 1,
It is characterized in that：It is horizontally arranged at interval the T-type ribbed stiffener (12) with holes longitudinally extended in top plate (18) plate face and girder is put more energy into
Rib (17) offers through-hole corresponding with T-type ribbed stiffener (12) with holes in girder ribbed stiffener (17) plate face.
3. a kind of steel concrete combined bridge front panel construction of the ultra-thin T-type ribbed stiffener with holes of uniform thickness as claimed in claim 2,
It is characterized in that：The reinforcing bar shear connector includes transverse steel (14), transverse steel (15) and longitudinal reinforcement (16) outside hole, horizontal outside hole
It is set on flange plate (12b) to reinforcing bar (15) longitudinal gap and is welded to connect therewith, transverse steel (14) passes through each girder
Through-hole on ribbed stiffener (17), girder ribbed stiffener (17) plate face, longitudinal reinforcement (16) transverse steel outside transverse steel (14), hole
(15) it is horizontally arranged at interval between.
4. a kind of steel concrete combined bridge front panel construction of the ultra-thin T-type ribbed stiffener with holes of uniform thickness as described in claim 1,
It is characterized in that：The thickness of the cast in place concrete plate (13) is not more than 16cm.
5. a kind of steel concrete combined bridge front panel construction of the ultra-thin T-type ribbed stiffener with holes of uniform thickness as claimed in claim 4,
It is characterized in that：The cast in place concrete plate (13) is poured using hybrid fiber concrete, wherein incorporation polyacrylonitrile 0.6~
1.0kg/m3, 35~45kg/m of mixing of steel fiber3。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475000.6A CN106149562B (en) | 2016-06-23 | 2016-06-23 | A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs |
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| CN201610475000.6A CN106149562B (en) | 2016-06-23 | 2016-06-23 | A kind of steel concrete combined bridge front panel of the ultra-thin T-type ribbed stiffener with holes of uniform thickness constructs |
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| CN106149562A CN106149562A (en) | 2016-11-23 |
| CN106149562B true CN106149562B (en) | 2018-11-23 |
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| CN106638302B (en) * | 2016-11-28 | 2018-12-21 | 四川省交通运输厅公路规划勘察设计研究院 | Steel concrete combined bridge deck and construction method |
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| CN107587424A (en) * | 2017-09-20 | 2018-01-16 | 广东省交通规划设计研究院股份有限公司 | A kind of ultra-high performance concrete floorings |
| CN108265626A (en) * | 2018-03-29 | 2018-07-10 | 同济大学 | Reinforcing steel bar-steel plate skeleton combined bridge deck and its construction method |
| CN109722977A (en) * | 2019-01-31 | 2019-05-07 | 深圳市综合交通设计研究院有限公司 | A kind of Composite Steel-Concrete Bridges and its construction method with novel deck structrue |
| CN112195778B (en) * | 2020-09-22 | 2022-07-05 | 浙江大学 | Toughness combination bridge deck plate composed of T-shaped steel |
| CN112942101A (en) * | 2021-02-03 | 2021-06-11 | 河博通(北京)路桥科技有限公司 | Light grid reinforced composite bridge floor and laying method |
| CN113463495A (en) * | 2021-07-21 | 2021-10-01 | 台州市交通勘察设计院有限公司 | Construction method of cast-in-situ steel-concrete composite beam with double main beam longitudinal one-way plates |
| CN115162158A (en) * | 2022-06-24 | 2022-10-11 | 福州大学 | Steel-concrete combined bridge deck adopting T-shaped shear connectors and construction method |
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