CN205874943U - Novel prefabricated assembled steel concrete combination beam bridge superstructure - Google Patents
Novel prefabricated assembled steel concrete combination beam bridge superstructure Download PDFInfo
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- CN205874943U CN205874943U CN201620801471.7U CN201620801471U CN205874943U CN 205874943 U CN205874943 U CN 205874943U CN 201620801471 U CN201620801471 U CN 201620801471U CN 205874943 U CN205874943 U CN 205874943U
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Abstract
The utility model provides a novel prefabricated assembled steel concrete combination beam bridge superstructure, includes steel girder, transverse connection girder steel, metal connecting piece and precast reinforced concrete decking, the steel girder is arranged according to the shape of bridge, connects through the transverse connection girder steel between the web of adjacent steel girder, the top flange of steel girder is equipped with metal connecting piece, the precast reinforced concrete decking is laid on the top flange of steel girder, the precast reinforced concrete decking is equipped with the preformed hole that is used for when treating to fill grouting material after the decking installation finishes, metal connecting piece is located in the preformed hole. The utility model discloses can replace fast that the disease is medium and small strides footpath concrete beam bridge, and the structure security is good, construction cycle is short, the cost is lower, the durability good.
Description
Technical field
This utility model relates to by using girder steel, precast rc slab, metal shearing-resistant member and on-the-spot binding material
Assembled combined beam structure, a kind of novel prefabricated assembled steel-concrete composite beams bridge superstructure.
Background technology
Mid and minor spans xoncrete structure bridge economic is good, has played great function in Bridges in Our Country construction.But, I
Every 4 of state's Short/Medium Span Bridge just has 1 bridge being to exist disease in various degree, these disease bridges need to carry out repairing or
Rebuilding, manpower, financial resources and the time cost spent by rebuilding the bridges is all huge.Further investigation reveals that these disease bridges
Substructure often can also continue to carrying, only need to be replaced the superstructure of disease bridge, so can be significantly
Alleviate the pressure of Modern City Traffic, save the spending of China.
Along with the development of China's industrial technology, steel yield in recent years is greatly improved with quality, steel yield by
66,350,000 tons of nineteen ninety increase to 10.67 hundred million tons in 2013, reach the 1/2 of whole world yield, and the market price of steel is the most
Decline to a great extent.But, little often there is fatigue problem across footpath clean steel bridge, and steel bridge deck easily goes out under the effect of vehicular load
Existing fatigue crack, under natural conditions and vehicular load stress effect, easily there is corrosion phenomenon, can significantly cut down in steel bridge deck
The service life of steel bridge deck.
Combined beam structure refers mainly to component or the system using girder steel and reinforced concrete bridge deck plate to combine, and is a kind of
More reasonably structural system.The technical characterstic of composite bridge is mainly by the mechanics after steel plate and concrete bridge plate combination
Performance, overall performance, anti-seismic performance have all exceeded the respective performance of material, steel and Reinforced Concrete Materials and have organically combined one
Rise, the shortcoming that respective material can be made up.At the beginning of age in last century, American-European countries begins to be studied combination beam, and extensively
General it is applied in bridge structure；China starts at systematic studys such as traffic, metallurgy, electric power, collieries from the age in last century and applies
Combined beam structure.Steel-concrete composite beams bridge is compared with the box girder bridge of steel construction, and not only steel using amount is little but also apyrous is relatively strong, has again
Preferably stability；Steel-concrete composite beams bridge, compared with common In Reinforced Concrete Box Girder, has lighter deadweight, slows down seismic force
And construction material can be saved and save the advantages such as construction process.Steel-concrete composite beams bridge can give full play to girder steel and reinforcing bar
The advantage of concrete, is possible not only to by traditional construction method, and can obtain excellent knot by simple construction technology
Structure performance reaches obvious technical economic benefit, is very suitable for the policy of the energy-saving and emission-reduction that China proposes at present.
Summary of the invention
In order to quickly repair disease Mid and minor spans rc beam bridge superstructure, and for reducing the weight of superstructure
With the durability of raising bridge, this utility model provides the site operation week of a kind of quick replacement Short/Medium Span Bridge superstructure
The novel prefabricated assembled steel-concrete composite beams bridge superstructure that phase is shorter, cost is relatively low, stability in the large is good.
This utility model solves its technical problem and be the technical scheme is that
A kind of novel prefabricated assembled steel-concrete composite beams bridge superstructure, including steel girder, lateral connection girder steel, metal
Connector and prefabricated reinforced concrete floorings, described steel girder arranges according to the shape of bridge, adjacent steel girder
Being connected by lateral connection girder steel between web, the top flange of described steel girder is provided with described metal connecting piece, described pre-manufactured steel
Reinforced concrete floorings are laid on the top flange of described steel girder, and described prefabricated reinforced concrete floorings are provided with for when treating
Floorings irrigate the preformed hole of grouting material after installing, described metal connecting piece is positioned at described preformed hole.
Further, described prefabricated reinforced concrete floorings are arranged on steel girder along bridge cross direction splicing seams.
Further, glued by binding material layer between described prefabricated reinforced concrete floorings and the top flange of steel girder
Knot.
Further, concave-convex is used between the most described adjacent prefabricated reinforced concrete floorings along spanning degree direction
Device connects.
Between adjacent described prefabricated reinforced concrete floorings, seam crossing is bondd by binding material layer.
Described prefabricated reinforced concrete floorings quantity has at least two in spanning and bridge cross direction.Can be according to design need
Want quantification.
Technology of the present utility model is contemplated that: Short/Medium Span Bridge often occurs that superstructure disease is serious, and substructure
Still can continue the situation of carrying.Considering the existing disease superstructure of quick replacement and the basis of urban traffic pressure
On, this utility model provides a kind of novel prefabricated assembled steel-concrete composite beams bridge superstructure and processing technology thereof.This practicality
The component of new structure all carries out prefabricated in factory, so can be greatly shortened the duration that disease bridge superstructure is replaced, and
Alleviate the traffic pressure of modern city as much as possible；And composite beam bridge can alleviate the quality of bridge superstructure significantly,
Make original bridge pier can meet the requirement of new criteria under replacing upper back structure and load action；Concrete slab can have
Effect extenuates fatigue problem and the vibration problem of clean steel bridge, and need not large-area anticorrosive work.
The beneficial effects of the utility model are mainly manifested in:
1, the novel prefabricated assembled steel-concrete composite beams bridge superstructure of the one in this utility model be used for replacing existing
During disease Short/Medium Span Bridge, steel girder is in steel construction prefabrication, and floorings are split as some pieces at the construction field (site) or work
Factory carries out the work such as formwork, assembling reinforcement, concreting and maintenance, these work can remove disease bridge time or it
Before just can complete, the most certain assembling construction work, site operation works the most simple and convenient, advantageously
In the replacement work of bridge superstructure, within on-the-spot assembly and maintenance duration can be strict controlled in 7 days, can be the most slow
Solve the traffic pressure of modern city；
2, the novel prefabricated assembled steel-concrete composite beams bridge superstructure relatively reinforced concrete bridge of the one in this utility model
Girder construction is from heavy and light, therefore on the basis of not changing bridge superstructure height, still can continue to use original bridge pier and its basis, can
To be greatly shortened the duration, cost-effective；
3, the novel prefabricated assembled steel-concrete composite beams bridge superstructure relatively pure steel structure bridge of the one in this utility model
Beam, concrete slab can effectively extenuate the fatigue problem of clean steel bridge, need not large-area anticorrosive work, and can subtract
Few substantial amounts of welding job, it is to avoid the residual deformation caused due to welding and residual stress, improve structure bearing capacity,
Fatigue behaviour, local stability and stability in the large；
4, the method that floorings use precast block, when disease occur in whole bridge construction block floorings, can pass through office
The method that portion replaces repairs bridge superstructure, and such disease bridge can reach the effect of repairerment limit, limit operation, significantly alleviates
The traffic pressure of modern city.
Accompanying drawing explanation
Fig. 1 is that schematic diagram is arranged in structural plan of the present utility model；
Fig. 2 is this utility model structure A-A profile；
Fig. 3 is this utility model structure B-B sectional drawing；
Fig. 4 is this utility model structural steel girder schematic diagram；
Fig. 5 is this utility model structure prefabricated A type side plate schematic diagram.
In figure: 1 steel girder；21. prefabricated A type side plates；Plate in 22. prefabricated c-types；23. prefabricated Type B side plates；24. prefabricated D types
Middle plate；3. metal connecting piece；4. deck paving；5. binding material；6. guardrail；7. lateral connection girder steel；8. mounting groove；9. grouting
Material；10. preformed hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
With reference to Fig. 1～Fig. 5, a kind of novel prefabricated assembled steel-concrete composite beams bridge superstructure, including steel girder 1, laterally
Connecting girder steel 7, metal connecting piece 3 and prefabricated reinforced concrete floorings, described steel girder 1 is arranged according to the shape of bridge
Row, are connected by lateral connection girder steel 7 between the web of adjacent steel girder 1, and the top flange of described steel girder 1 is provided with described gold
Belonging to connector 3, described prefabricated reinforced concrete floorings are laid on the top flange of described steel girder 1, described precast reinforced mixed
Solidifying soil floorings are provided with the preformed hole 10 for irrigating grouting material until floorings after installing, described metal connecting piece 3
It is positioned at described preformed hole 10.
Further, described prefabricated reinforced concrete floorings are arranged on steel girder 1 along bridge cross direction splicing seams.
Further, by binding material layer between described prefabricated reinforced concrete floorings and the top flange of steel girder 1
Bonding.
Further, concave-convex is used between the most described adjacent prefabricated reinforced concrete floorings along spanning degree direction
Device connects.
Between adjacent described prefabricated reinforced concrete floorings, seam crossing is bondd by binding material layer.
Described prefabricated reinforced concrete floorings quantity has at least two in spanning and bridge cross direction.Can be according to design need
Want quantification.
A kind of processing technology of novel prefabricated assembled steel-concrete composite beams bridge superstructure, described processing technology include as
Lower step:
The first step, according to bridge shape, arranges steel girder 1；The surface contacted steel girder 1 with concrete should
Carry out oil removing and processing of rust removing；
Second step, is respectively arranged at lateral connection girder steel 7 between the web of adjacent steel girder 1；
3rd step, the surface sand-blasting contacted steel girder 1 with concrete processes, and steel sand or corundum are as abrasive material, at 0.6-
Processing under 0.7MPa pressure makes its surface roughness reach Sa2.5 level；
4th step, the top flange of described steel girder 1 arranges metal connecting piece 3,；
5th step, the binding material that 8mm～30mm is thick is smeared in described steel girder top flange；
6th step, by prefabricated prefabricated A type side plate 21；Plate 22 in prefabricated c-type；Prefabricated Type B side plate 23；In prefabricated D type
Plate 24 is installed, and described floorings are installed successively according to location line, after each plate installs, smear at each plate seam crossing and cohere
Material；
7th step, irrigates grouting material 9 by preformed hole 10；
8th step, after binding material 5 and grouting material 9 reach design strength, carries out bridge floor process, is open to traffic.
In the present embodiment, spanning footpath is 10m, a width of 10m of bridge, and steel girder 1 all uses Q345qC steel, and section form is work
Font, sectional dimension is " work " 360 × 250 × 16 × 12, and spacing is 1500mm, length 10m, and floorings are relative to two ends bridge two
The vertical natural axis of steel girder 1 of end has encorbelmenting of 500mm, and part of encorbelmenting is as guardrail and footpath, and pier location is at distance steel
At girder 1 two ends 500mm；Lateral connection girder steel beam 7 uses Q345qC steel, and a size of 300 × 10 × 3500；Prefabricated A type
Side plate 21；Plate 22 in prefabricated c-type；Prefabricated Type B side plate 23；In prefabricated D type, plate 24 uses C40 concrete；Metal shearing-resistant member 3 diameter
Use the peg of 16mm, a length of 160mm of peg, peg distance steel girder flange edges 35mm, with the distance between row's peg be
60mm, the spacing between each row's peg is 200mm；Plate 22, prefabricated Type B side plate 23, prefabricated in prefabricated A type side plate 21, prefabricated c-type
In D type, plate 24 two ends arrange mounting groove 8；And in prefabricated A type side plate 21, prefabricated c-type plate 22, prefabricated Type B side plate 23, prefabricated D
In type, plate 24 and metal shear key corresponding position arrange preformed hole 10 one to one, a diameter of 30mm of preformed hole 10；Grouting
Material 9 employing rapid condensation high-strength concrete；Binding material 5 uses quick binding material.First, the concrete prefabricated bag of C40 is used
Containing plate 24 in plate 23, prefabricated D type in preformed hole 10 and the prefabricated A type side plate 21 of mounting groove 8, prefabricated Type B side plate 24, prefabricated c-type；
Reprocessing steel girder 1 and lateral connection girder steel 7；By welding manner, metal shear key 3 is welded on steel girder 1 entirely again；Treat
When in prefabricated A type side plate 21, prefabricated c-type, in plate 22, prefabricated Type B side plate 23, prefabricated D type, plate 24 reaches 28 day age, by steel master
Beam 1 carries out preassembling with plate 24 in plate 22, prefabricated Type B side plate 23, prefabricated D type in prefabricated A type side plate 21, prefabricated c-type, and is sent to
Building site；At the scene by binding material 5 uniform application in steel girder 1 top flange, after by steel girder and prefabricated A type side plate 21, prefabricated C
In type in plate 22, prefabricated Type B side plate 23, prefabricated D type plate 24 to carry out mounting groove 8 formal assembled one to one, then at prefabricated A
In type side plate 21, prefabricated c-type, in plate 22, prefabricated Type B side plate 23, prefabricated D type, in the reserved preformed hole 10 of plate 24, material is cohered in perfusion
Material 9 (epoxy resin mortars).
The processing technology of the present embodiment, in processing factory, first (arranges according to bridge, to steel girder steel girder 1
1 surface contacted with concrete should carry out oil removing and processing of rust removing；By welding procedure, lateral connection girder steel 7 is respectively provided with again
Between each steel girder 1；Use welding procedure metal shearing-resistant member 3 is respectively welded with on steel girder 1 top flange, then, right
The surface sand-blasting that steel girder 1 contacts with concrete processes, and steel sand (Rockwell hardness ＞ 62) or corundum are as abrasive material, at 0.6-
Processing under 0.7MPa pressure makes its surface roughness reach Sa2.5 level；Shearing-resistant member 3 diameter uses the peg of 16mm, peg length
For 160mm, peg distance steel girder flange edges 35mm, being 60mm with the distance between row's peg, the spacing between each row's peg is
250mm；At the steel girder 1 top flange certain thickness binding material of uniform application 5；By in each prefabricated A type side plate 21, prefabricated c-type
In plate 22, prefabricated Type B side plate 23 and prefabricated D type, plate 24 is arranged on steel girder 1 top flange；At prefabricated A type side plate 21, prefabricated C
In type, in plate 22, prefabricated Type B side plate 23 and prefabricated D type, plate 24 seam crossing smears binding material 5, arranges on each prefabricated bridge
Corresponding shearing-resistant member 3 preformed hole 10 irrigate grouting material 9；Finally, treat that binding material and grouting material reach some strength (such as
Design strength half), carry out bridge floor process, after be open to traffic.
Claims (6)
1. a novel prefabricated assembled steel-concrete composite beams bridge superstructure, it is characterised in that: include steel girder, lateral connection
Girder steel, metal connecting piece and prefabricated reinforced concrete floorings, described steel girder arranges according to the shape of bridge, adjacent
Being connected by lateral connection girder steel between the web of steel girder, the top flange of described steel girder is provided with described metal connecting piece, institute
Stating prefabricated reinforced concrete floorings to be laid on the top flange of described steel girder, described prefabricated reinforced concrete floorings are provided with
Irrigating the preformed hole of grouting material until floorings after installing, described metal connecting piece is positioned at described preformed hole.
Novel prefabricated assembled steel-concrete composite beams bridge superstructure the most as claimed in claim 1, it is characterised in that: described pre-
Reinforced concrete bridge deck plate processed is arranged on steel girder along bridge cross direction splicing seams.
Novel prefabricated assembled steel-concrete composite beams bridge superstructure the most as claimed in claim 1 or 2, it is characterised in that: described
Bondd by binding material layer between the top flange of prefabricated reinforced concrete floorings and steel girder.
Novel prefabricated assembled steel-concrete composite beams bridge superstructure the most as claimed in claim 1 or 2, it is characterised in that: adjacent
The most described prefabricated reinforced concrete floorings between along spanning degree direction use concave-convex device connect.
Novel prefabricated assembled steel-concrete composite beams bridge superstructure the most as claimed in claim 3, it is characterised in that: adjacent
Between described prefabricated reinforced concrete floorings, seam crossing is bondd by binding material layer.
Novel prefabricated assembled steel-concrete composite beams bridge superstructure the most as claimed in claim 3, it is characterised in that: described pre-
Reinforced concrete bridge deck plate quantity processed has at least two in spanning and bridge cross direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620801471.7U CN205874943U (en) | 2016-07-26 | 2016-07-26 | Novel prefabricated assembled steel concrete combination beam bridge superstructure |
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| CN201620801471.7U CN205874943U (en) | 2016-07-26 | 2016-07-26 | Novel prefabricated assembled steel concrete combination beam bridge superstructure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120532A (en) * | 2016-07-26 | 2016-11-16 | 宁波金蛟龙重工钢构有限公司 | A kind of novel prefabricated assembled steel concrete composite beam bridge superstructure and processing technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120532A (en) * | 2016-07-26 | 2016-11-16 | 宁波金蛟龙重工钢构有限公司 | A kind of novel prefabricated assembled steel concrete composite beam bridge superstructure and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200616 Address after: Wu Village 315456 Zhejiang city of Ningbo province Yuyao Xindong moushan town Patentee after: Ningbo United Longmen heavy industry steel structure Co.,Ltd. Address before: Wu Village 315456 Zhejiang city of Ningbo province Yuyao Xindong moushan town Patentee before: NINGBO JINJIAOLONG HEAVY INDUSTRY STEEL STRUCTURE Co.,Ltd. |
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| TR01 | Transfer of patent right |