CN208604467U - Prefabricated free cantilever erection steel reinforced concrete combined bridge - Google Patents
Prefabricated free cantilever erection steel reinforced concrete combined bridge Download PDFInfo
- Publication number
- CN208604467U CN208604467U CN201821103531.3U CN201821103531U CN208604467U CN 208604467 U CN208604467 U CN 208604467U CN 201821103531 U CN201821103531 U CN 201821103531U CN 208604467 U CN208604467 U CN 208604467U
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- steel
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- flange plate
- prefabricated
- wavelike
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 238
- 239000010959 steel Substances 0.000 title claims abstract description 238
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 21
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 6
- 238000009408 flooring Methods 0.000 abstract description 5
- 238000009417 prefabrication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011178 precast concrete Substances 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 10
- 239000002131 composite material Substances 0.000 description 7
- 238000010008 shearing Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The utility model belongs to bridge technology field, relates generally to a kind of prefabricated free cantilever erection steel reinforced concrete combined bridge, including prefabricated bridge and variable cross-section groove profile Wavelike steel webplate girder steel；Prefabricated bridge includes precast slab, open pore steel plate connector and upper steel flange plate, and upper steel flange plate is horizontally disposed, and open pore steel plate connector is vertically connected at upper steel flange plate top, and prefabricated in precast concrete intralamellar part；Variable cross-section groove profile Wavelike steel webplate girder steel includes two Wavelike steel webplates, steel sole plate and lower steel flange plate；Steel sole plate connects two Wavelike steel webplate bottoms, and lower steel flange plate is set at the top of each Wavelike steel webplate；Wherein, it is connected between upper steel flange plate and lower steel flange plate by an at least anti-shear steel plate.In technical solution in the present invention, floorings are constructed using prefabrication, improve the standardization of Long span variable cross-section bridge and industrialization degree.
Description
Technical field
The utility model belongs to bridge technology field, relates generally to a kind of prefabricated free cantilever erection steel reinforced concrete combined bridge.
Background technique
In recent years since, bridge construction starts to develop to batch production, enlargement, mechanization and standardization direction, waveform steel abdomen
Plate composite beam bridge because its structure stress is clear, from the advantages such as heavy and light, field operation be few, in recent years at home and abroad in science of bridge building
To being widely applied.Traditional corrugated steel web plate composite box girder roof and floor is concrete slab, and only web uses sheet metal, state
The inside and outside Engineering Projects that there is no Long span variable cross-section Wavelike steel webplate composite beam bridge full-bridge to use precast segment, because of this structure
Application of the form in Large Span Bridges there is problems: firstly, Large Span Bridges generally use variable cross-section form, and bottom
Plate thickness is handled along bridge to using Varying-thickness, and the construction standard and industrialization degree are poor, and the cast in situs duration is longer；Its
Secondary, when Long span Wavelike steel webplate combination beam uses cantilever construction, beam section hogging moment is larger at support, and concrete top flange easily goes out
Now crack；In addition, concrete floor in the operation phase due to being chronically at tension state, easily crack；Finally, Long span waveform
When steel web combination beam bridge uses prefabricated bridge, conventional reserved slot arrangement Welded-Stud Conectors have been unable to meet structure shearing resistance
It is required that.
Presence in view of the above problems, the present inventor are based on being engaged in such product engineering application practical experience abundant for many years
And professional knowledge, and cooperate the utilization of scientific principle, it is subject to research and innovation, actively to found a kind of prefabricated free cantilever erection steel reinforced concrete combination
Bridge makes it with more practicability.
Utility model content
The main purpose of the utility model is that overcoming existing Long span Wavelike steel webplate composite beam bridge standardization and industry
Change there are the problem of, and provide a kind of novel prefabricated free cantilever erection steel reinforced concrete combined bridge, make it that there is traditional Long span waveform
It on the basis of the structural advantage of steel web variable cross-section composite box beam, can further reach reduction dead load, realize full-bridge work
The purpose of industryization manufacture, effectively shortens construction period, lifting construction quality.
The purpose of this utility model and solve its technical problem and adopt the following technical solutions to realize: prefabricated cantilever is spelled
Steel loading mixes combined bridge, including prefabricated bridge and variable cross-section groove profile Wavelike steel webplate girder steel；
The prefabricated bridge includes precast slab, open pore steel plate connector and upper steel flange plate, the upper steel wing
Listrium is horizontally disposed, and the open pore steel plate connector is vertically connected at the upper steel flange plate top, and prefabricated described prefabricated
Inside concrete slab；
The variable cross-section groove profile Wavelike steel webplate girder steel includes two Wavelike steel webplates, steel sole plate and lower steel flange plate；It is described
Steel sole plate connects the two Wavelike steel webplate bottoms, and the lower steel flange plate is set at the top of each Wavelike steel webplate；
Wherein, it is connected between the upper steel flange plate and lower steel flange plate by an at least anti-shear steel plate.
Further, there are two anti-shear steel plate settings, and be symmetrically disposed on the Wavelike steel webplate two sides and with institute
It states Wavelike steel webplate to be arranged in the same direction, two anti-shear steel plates are connected by two sealing steel plates, the upper steel flange plate, the lower steel edge of a wing
Seal cavity is formed between plate, anti-shear steel plate and sealing steel plate.
Further, the sealing steel plate is inwardly indented relative to the marginal position of the anti-shear steel plate, wherein after retraction
The gap formed outside the seal cavity is sealed by waterproof foam.
Further, the precast slab bottom is provided with fin, and the upper steel flange plate is set to the fin
Bottom, wherein the fin two sides are excessive by slope surface with the precast slab bottom.
Further, the width of the upper steel flange plate is less than the width of the lower steel flange plate, two anti-shear steel plates
It is connect respectively with the two edges of the upper steel flange plate, and the exterior bottom of two anti-shear steel plates is provided with inclined-plane, it is described oblique
Welded gaps are formed between the part that face and the lower steel flange plate exceed on the outside of the anti-shear steel plate.
Further, the Wavelike steel webplate is wavy shaped configuration, and each wave crest or wave in the wavy shaped configuration
Paddy is symmetrically made of three planes.
Further, which is characterized in that be provided with two limited blocks at the top of the lower steel flange plate, the limited block with it is described
The fitting of anti-shear steel plate inner wall.
Further, the manufacturing method of prefabricated free cantilever erection steel reinforced concrete combined bridge, comprising the following steps:
The prefabricated bridge it is prefabricated: first by the open pore steel plate connector, upper steel flange plate, anti-shear steel plate and close
Envelope steel plate weld it is prefabricated, it is then described prefabricated by the prefabricated acquisition of precast slab and the open pore steel plate connector
Floorings；
The variable cross-section groove profile Wavelike steel webplate girder steel it is prefabricated: two Wavelike steel webplates and steel sole plate are welded first pre-
System, is then soldered to the Wavelike steel webplate upper end for the lower steel flange plate and forms the variable cross-section groove profile Wavelike steel webplate steel
Beam；
Steel reinforced concrete combination beam on-site assembly: the variable cross-section groove profile Wavelike steel webplate girder steel is set up first, then to described pre-
Floorings processed carry out lifting docking, the position of have good positioning the variable cross-section groove profile Wavelike steel webplate girder steel and the prefabricated bridge
Afterwards, welding is carried out to the anti-shear steel plate, sealing steel plate and lower steel flange plate and forms box girder, then filled in the gap
The waterproof foam sealing.
Further, in the mistake for the position for positioning the variable cross-section groove profile Wavelike steel webplate girder steel and the prefabricated bridge
Cheng Zhong positions the position of the two by being located at the limited block at the top of the lower steel flange plate.
By above-mentioned technical proposal, the prefabricated free cantilever erection steel reinforced concrete combined bridge of the utility model at least has following excellent
Point:
The prefabricated free cantilever erection steel reinforced concrete combined bridge of the utility model and traditional variable cross-section corrugated steel web plate composite box girder
It compares, floorings are constructed using prefabrication, are improved the standardization of Long span variable cross-section bridge and industrialization degree, are effectively mentioned
Construction quality has been risen, the construction period is shortened, has reduced setting up for site operation false form；Concrete is replaced using steel sole plate
Bottom plate effectively reduces dead load, solves the problems, such as that variable cross-section concrete floor Varying-thickness prefabrication difficulty is big；In advance
Floorings processed are arranged two blocks of steel plates with variable cross-section groove profile Wavelike steel webplate girder steel and are welded to connect, and it is prefabricated to efficiently solve tradition
Combination beam connection shearing strength the problem of being unable to satisfy Large Span Bridges shearing resistance requirement, and above two structure is combined and to be formed
Box beam can very be prefabricated in the factory completion, effective solution Large Span Bridges site operation problem long in time limit.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the prefabricated free cantilever erection steel reinforced concrete combined bridge segment schematic diagram of the utility model；
Fig. 2 is cross-sectional view at B-B in Fig. 1；
Fig. 3 is prefabricated bridge structural schematic diagram；
Fig. 4 is variable cross-section groove profile Wavelike steel webplate steel beam structure schematic diagram；
Fig. 5 is sectional view at A-A in Fig. 2.
Mark meaning in figure: 1 prefabricated bridge, 1-1 precast slab, 1-2 open pore steel plate connector, the upper steel wing of 1-3
Listrium, 1-4 anti-shear steel plate, 1-5 sealing steel plate, 1-6 fin, 1-7 slope surface, 2 variable cross-section groove profile Wavelike steel webplate girder steels, 2-1 wave
Shape steel web, 2-2 steel sole plate, steel flange plate under 2-3,2-4. limited block, 3. waterproof foams.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to specific embodiment of the present utility model, detailed description is as follows.
The embodiments of the present invention are write in a progressive manner.
As shown in Figure 1, Figure 2, the prefabricated free cantilever erection steel reinforced concrete combined bridge of Fig. 3, Fig. 4 and the utility model shown in fig. 5, including
Prefabricated bridge 1 and variable cross-section groove profile Wavelike steel webplate girder steel 2；Prefabricated bridge 1 includes precast slab 1-1, aperture steel
Plate connector 1-2 and upper steel flange plate 1-3, upper steel flange plate 1-3 are horizontally disposed, and open pore steel plate connector 1-2 is vertically connected at
The upper top steel flange plate 1-3, and it is prefabricated inside precast slab 1-1, Long span variable cross-section bridge is improved in this way
Beam standardization and industrialization degree, effectively improve construction quality, shorten the construction period, reduce the interim mould of site operation
Plate is set up；Variable cross-section groove profile Wavelike steel webplate girder steel 2 includes two Wavelike steel webplate 2-1, steel sole plate 2-2 and lower steel flange plate 2-
3；Two bottom Wavelike steel webplate 2-1 of steel sole plate 2-2 connection replaces concrete floor using steel sole plate 2-1, effectively reduces and finish
Structure self weight, solves the problems, such as that variable cross-section concrete floor Varying-thickness prefabrication difficulty is big, lower steel flange plate 2-3 is set to often
At the top of one Wavelike steel webplate 2-1；Wherein, pass through an at least anti-shear steel plate 1- between upper steel flange plate 1-3 and lower steel flange plate 2-3
4 connections, so that efficiently solving traditional Prefabricated composite beam connection shearing strength is unable to satisfy Large Span Bridges shearing resistance requirement
Problem.
As the preferred of above-described embodiment, there are two anti-shear steel plate 1-4 settings, and is symmetrically disposed on Wavelike steel webplate 2-1
Two sides are simultaneously arranged with Wavelike steel webplate 2-1 in the same direction, and two anti-shear steel plate 1-4 pass through two sealing steel plate 1-5 connections, upper steel flange plate 1-
3, seal cavity is formed between lower steel flange plate 2-3, anti-shear steel plate 1-4 and sealing steel plate 1-5, is on the one hand increased by above structure
Large Span Bridges shear resistance is added, while having increased the resistance to corrosion of entire bridge by the formation of seal cavity, has extended
The service life of entire box beam, in order to enable said effect is further guaranteed, sealing steel plate 1-5 is relative to anti-shear steel plate 1-
4 marginal position is inwardly indented, wherein the gap formed outside seal cavity after retraction is sealed by waterproof foam 3.
As the preferred of above-described embodiment, the bottom precast slab 1-1 is provided with fin 1-6, and upper steel flange plate 1-3 is set
It is placed in the bottom fin 1-6, wherein the two sides fin 1-6 and the bottom precast slab 1-1 are excessive by slope surface 1-7, fin 1-6
The welding for being set as upper and lower steel flange plate provide enough spaces, while the interim form of slope surface 1-7 increase it is prefabricated mixed
The intensity of concrete board 1-1.
As the preferred of above-described embodiment, the width of upper steel flange plate 1-3 is less than the width of the lower steel flange plate 2-3,
Two anti-shear steel plate 1-4 are connect with the two edges of upper steel flange plate 1-3 respectively, and the exterior bottom of two anti-shear steel plate 1-4 is provided with
Inclined-plane, inclined-plane and lower steel flange plate 2-3 pass through above-mentioned side beyond welded gaps are formed between the part on the outside of anti-shear steel plate 1-4
Formula may make the welding between steel flange plate 1-3 and lower steel flange plate 2-3 even closer, obtain biggish welding space, from
And guarantee weldquality.
As the preferred of above-described embodiment, Wavelike steel webplate 2-1 is wavy shaped configuration, and each wave in wavy shaped configuration
Peak or trough are symmetrically made of three planes, and above-mentioned wavy shaped configuration is easy to process, and symmetrical structure makes entire box beam
Distribution of force it is more uniform, structure is relatively reliable, wherein the length of the orientation of each wave crest of waveform and anti-shear steel plate 1-4
It is in the same direction to spend direction.
It is fixed in order to reduce variable cross-section groove profile Wavelike steel webplate girder steel 2 and prefabricated bridge 1 as the preferred of above-described embodiment
The difficulty of position guarantees splicing dimensional accuracy, is provided with two limited block 2-4, limited block 2-4 and shearing resistance at the top of lower steel flange plate 2-3
The fitting of steel plate 1-4 inner wall.
The manufacturing method of above-mentioned prefabricated free cantilever erection steel reinforced concrete combined bridge, comprising the following steps:
Prefabricated bridge 1 it is prefabricated: first in steel construction processing factory by open pore steel plate connector 1-2, upper steel flange plate 1-
3, anti-shear steel plate 1-4 and sealing steel plate 1-5 weld prefabricated, then passes through precast concrete in concrete slab precast plant
The prefabricated acquisition prefabricated bridge 1 of plate 1-1 and open pore steel plate connector 1-2, in the process can using upper steel flange plate 1-3 as
Prefab-form, to reduce the quantity of prefabricated phase template；
Variable cross-section groove profile Wavelike steel webplate girder steel 2 it is prefabricated: first by two Wavelike steel webplate 2-1 and steel sole plate 2-2 in steel
The welding of structure processing factory is prefabricated, and lower steel flange plate 2-3 is then soldered to the upper end Wavelike steel webplate 2-1 and forms variable cross-section groove profile wave
Shape steel web steel beam 2；
Above two structure combines the combination to be formed and carrys out that completion that can very be prefabricated in the factory, and effectively improves bridge
Industrialization degree；
Steel reinforced concrete combination beam on-site assembly: erection variable cross-section groove profile Wavelike steel webplate girder steel 2 first, then to prefabricated bridge
1 carries out lifting docking, and is positioned by being located at the limited block 2-4 at the top of lower steel flange plate 2-3 to the position of the two, positions
Behind the position of good variable cross-section groove profile Wavelike steel webplate girder steel 2 and prefabricated bridge 1, to anti-shear steel plate 1-4, sealing steel plate 1-5 and
Lower steel flange plate 2-3 carries out welding and forms box girder, then fills waterproof foam 3 in gap and seals.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (7)
1. prefabricated free cantilever erection steel reinforced concrete combined bridge, it is characterised in that: including prefabricated bridge (1) and variable cross-section groove profile waveform steel
Web steel beam (2)；
The prefabricated bridge (1) includes precast slab (1-1), open pore steel plate connector (1-2) He Shanggang flange plate (1-
3), the upper steel flange plate (1-3) is horizontally disposed, and the open pore steel plate connector (1-2) is vertically connected at the upper steel edge of a wing
The top plate (1-3), and it is prefabricated internal in the precast slab (1-1)；
The variable cross-section groove profile Wavelike steel webplate girder steel (2) includes two Wavelike steel webplates (2-1), steel sole plate (2-2) He Xiagang wing
Listrium (2-3)；The steel sole plate (2-2) connects two Wavelike steel webplate (2-1) bottoms, and the lower steel flange plate (2-3) sets
It is placed at the top of each Wavelike steel webplate (2-1)；
Wherein, it is connected between upper steel flange plate (1-3) the He Xiagang flange plate (2-3) by an at least anti-shear steel plate (1-4).
2. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 1, it is characterised in that: the anti-shear steel plate (1-
4) there are two setting, and the Wavelike steel webplate two sides (2-1) is symmetrically disposed on and are set in the same direction with the Wavelike steel webplate (2-1)
It sets, two anti-shear steel plates (1-4) are connected by two sealing steel plates (1-5), the upper steel flange plate (1-3), lower steel flange plate
Seal cavity is formed between (2-3), anti-shear steel plate (1-4) and sealing steel plate (1-5).
3. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 2, which is characterized in that the sealing steel plate (1-
5) marginal position relative to the anti-shear steel plate (1-4) is inwardly indented, wherein being formed outside the seal cavity after retraction
Gap pass through waterproof foam (3) seal.
4. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 1, which is characterized in that the precast slab
The bottom (1-1) is provided with fin (1-6), and the upper steel flange plate (1-3) is set to the bottom the fin (1-6), wherein described
The fin two sides (1-6) and the precast slab bottom (1-1) are excessive by slope surface (1-7).
5. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 2 or 3, which is characterized in that the upper steel edge of a wing
The width of plate (1-3) be less than the lower steel flange plate (2-3) width, two anti-shear steel plates (1-4) respectively with the upper steel
The two edges of flange plate (1-3) connect, and the exterior bottom of two anti-shear steel plates (1-4) is provided with inclined-plane, the inclined-plane with
Welded gaps are formed between the part that the lower steel flange plate (2-3) exceeds on the outside of the anti-shear steel plate (1-4).
6. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 1, which is characterized in that the Wavelike steel webplate
(2-1) is wavy shaped configuration, and each wave crest in the wavy shaped configuration or trough are symmetrically made of three planes.
7. prefabricated free cantilever erection steel reinforced concrete combined bridge according to claim 2, which is characterized in that the lower steel flange plate
It is provided with two limited blocks (2-4) at the top of (2-3), the limited block (2-4) is bonded with the anti-shear steel plate (1-4) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103531.3U CN208604467U (en) | 2018-07-12 | 2018-07-12 | Prefabricated free cantilever erection steel reinforced concrete combined bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103531.3U CN208604467U (en) | 2018-07-12 | 2018-07-12 | Prefabricated free cantilever erection steel reinforced concrete combined bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208604467U true CN208604467U (en) | 2019-03-15 |
Family
ID=65668481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821103531.3U Withdrawn - After Issue CN208604467U (en) | 2018-07-12 | 2018-07-12 | Prefabricated free cantilever erection steel reinforced concrete combined bridge |
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| Country | Link |
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| CN (1) | CN208604467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842593A (en) * | 2018-07-12 | 2018-11-20 | 苏交科集团股份有限公司 | Long span assembled steel reinforced concrete combination beam and its manufacturing method |
-
2018
- 2018-07-12 CN CN201821103531.3U patent/CN208604467U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842593A (en) * | 2018-07-12 | 2018-11-20 | 苏交科集团股份有限公司 | Long span assembled steel reinforced concrete combination beam and its manufacturing method |
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