CN108643047A - A kind of lower support built-in fitting of large bridge bracket - Google Patents
A kind of lower support built-in fitting of large bridge bracket Download PDFInfo
- Publication number
- CN108643047A CN108643047A CN201810477746.XA CN201810477746A CN108643047A CN 108643047 A CN108643047 A CN 108643047A CN 201810477746 A CN201810477746 A CN 201810477746A CN 108643047 A CN108643047 A CN 108643047A
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- Prior art keywords
- steel plate
- lower support
- fitting
- bridge
- support built
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Classifications
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of lower support built-in fittings of large bridge bracket, including longitudinal long steel plate, lateral ends steel plate, lateral intermediate bulkhead and top steel plate；The long steel plate in longitudinal direction is provided with two pieces, and two are placed in parallel, the perpendicular lateral ends steel plate of fixed welding at the both ends of longitudinal long steel plate, it is fixed between two long steel plates in longitudinal direction to weld perpendicular lateral intermediate bulkhead, lateral intermediate bulkhead is correspondingly arranged at both ends respectively, and in the longitudinal direction, the upper end of long steel plate is fixedly welded with top steel plate.The lower support built-in fitting of large bridge bracket of the present invention can obviously improve the stress of bridge pier concrete on the downside of bridge supporting frame, prevents concrete and occurs damaging by pressure, cracking and other issues；The lower support built-in fitting material requested equipment of large bridge bracket of the present invention is only steel plate, and material materials are simple；The lower support built-in fitting of large bridge bracket of the present invention can site welding, method is simple.
Description
Technical field
The present invention relates to technical field of bridge construction, the lower support built-in fitting of specifically a kind of large bridge bracket.
Background technology
Bridge supporting frame is the important construction structure for supporting the extended template in bridge pier both sides, holder and weight concrete
Part, often size is big in Practical Project and need to undertake top construction loads.And bearing of the bridge pier as bridge supporting frame, then it needs to hold
The concentration construction loads that load bridge supporting frame is passed over, however the practical contact surface of bridge supporting frame and bridge pier is small, it can be in bridge
Larger local compression is generated in bridge pier concrete on the downside of bracket, above-mentioned part compression easily leads to following two categories construction quality
Problem：The bridge pier concrete on the downside of bridge supporting frame is caused to damage by pressure, crack 1. local compression is more than bridge pier concrete strength.2. bridge
Beam bracket position offset, influences the alignment control in bridge construction, is also possible that bracket top Bailey bracket holder collapses when serious
The safety accident collapsed.So how to reinforce the connection of bridge supporting frame and bridge pier, can safely, completely be passed in guarantee bridge supporting frame load
While passing bridge pier, it is ensured that bridge pier concrete is intact, bridge supporting frame position does not deviate, and is needed in all bridge construction process
The Important Problems of concern.
Invention content
The purpose of the present invention is to provide a kind of lower support built-in fittings of large bridge bracket, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of lower support built-in fitting of large bridge bracket, including longitudinally long steel plate, lateral ends steel plate, laterally centre
Partition board and top steel plate；The long steel plate in longitudinal direction is provided with two pieces, and two are placed in parallel, fixed at the both ends of longitudinal long steel plate
Perpendicular lateral ends steel plate is welded, fixed weld is spaced in perpendicular transverse direction between two long steel plates in longitudinal direction
Plate, lateral intermediate bulkhead are correspondingly arranged at both ends respectively, and in the longitudinal direction, the upper end of long steel plate is fixedly welded with top steel plate.
Further：The both ends of the top steel plate correspond to lateral ends steel plate and lateral intermediate bulkhead respectively.
Further：The length of the long steel plate in longitudinal direction is more than bridge pier width, and the both ends of longitudinal long steel plate are to extension
It stretches, development length 0.4-0.5m.
Further：The width of the long steel plate in longitudinal direction is more than 0.4m.
Further：The width of the lateral ends steel plate is of same size with longitudinal long steel plate, and lateral ends steel plate
Length-width ratio be 0.8-1.2.
Further：The width of the top steel plate is of same size with longitudinal long steel plate.
Compared with prior art, the beneficial effects of the invention are as follows：
1, it is mixed to can obviously improve bridge pier on the downside of bridge supporting frame for the lower support built-in fitting of large bridge bracket of the present invention
The stress of soil is coagulated, prevents concrete and occurs damaging by pressure, cracking and other issues；
2, the lower support built-in fitting material requested equipment of large bridge bracket of the present invention is only steel plate, material materials
Simply；
3, the lower support built-in fitting of large bridge bracket of the present invention can site welding, method is simple, to operator
Member requires low.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the lower support built-in fitting of large bridge bracket.
Fig. 2 is a kind of mounting structure schematic diagram of the lower support built-in fitting of large bridge bracket.
Fig. 3 is the structural schematic diagram that built-in fitting is not used.
In figure：1- longitudinally long steel plate, 2- lateral ends steel plate, 3- transverse directions intermediate bulkhead, steel plate at the top of 4-, 5- bridge piers, 6-
Bridge supporting frame, 7- built-in fittings.
Specific implementation mode
Please refer to Fig.1-2, in the embodiment of the present invention, a kind of lower support built-in fitting of large bridge bracket, including longitudinal direction
Long steel plate 1, lateral ends steel plate 2, lateral intermediate bulkhead 3 and top steel plate 4；The long steel plate in the longitudinal direction 1 is provided with two pieces, and two
It is placed in parallel, at the both ends of longitudinal long steel plate 1, the perpendicular lateral ends steel plate 2 of fixed welding, forms bridge supporting frame 6
Lower support built-in fitting main body；It is fixed between the long steel plate 1 in two longitudinal directions to weld perpendicular lateral intermediate bulkhead 3, laterally
Intermediate bulkhead 3 is correspondingly arranged at both ends respectively, and lateral intermediate bulkhead 3 is used to separate the bridge pier inside points and bridge of longitudinal long steel plate 1
Pier outer portion plays the effect for increasing by 6 lower support built-in fitting overhanging part total bearing capacity and rigidity of large bridge bracket；
The upper end of the long steel plate in the longitudinal direction 1 is fixedly welded with top steel plate 4, and the both ends of top steel plate 4 correspond to lateral ends steel respectively
Plate 2 and lateral intermediate bulkhead 3, top steel plate 4 are in direct contact with bridge supporting frame 6, the load for bearing bracket transmission.
The length of the long steel plate in the longitudinal direction 1 is more than bridge pier width, and the both ends of longitudinal long steel plate 1 extend outwardly, and extend
Length is 0.4-0.5m, too small to be insufficient for coming into full contact with bridge supporting frame, too long, wastes steel.
The width of the long steel plate in the longitudinal direction 1 is more than 0.4m, and width does not answer too small, too small then entire lower support built-in fitting
Rigidity is inadequate, can not play the role of effectively supporting top bridge supporting frame.
The width of the lateral ends steel plate 2 is of same size with longitudinal long steel plate 1, and the length and width of lateral ends steel plate 2
Than for 0.8-1.2, therefore square is more suitable.
The width of the transverse direction intermediate bulkhead 3 is of same size with longitudinal long steel plate 1, and length is by two blocks of long steel plates in longitudinal direction
Spacing between 1 determines.
The width of the top steel plate 4 is of same size with longitudinal long steel plate 1, and length is by lateral ends steel plate 2 to laterally
The spacing of intermediate bulkhead 3 determines.
A kind of lower support built-in fitting of large bridge bracket described in the specific embodiment of the invention, application method tool
Body step is：
1. each piece of plate size is determined according to Practical Project, wherein longitudinal long 1 length of steel plate should be equal to bridge pier width+both ends
Overhang extension；
2. the cutting stock on monoblock steel plate cuts 2 longitudinal long 1,2 blocks of steel plate, 2,2 pieces of lateral ends steel plate transverse directions in total
Intermediate bulkhead 3 and 2 blocks of top steel plates 4.It is designed hooking on monoblock steel plate in advance when cutting, accomplishes rational deployment, is saved
Material.
3. the long steel plate 1 in 2 pieces of longitudinal directions and 2 pieces of lateral intermediate bulkheads 3 are placed as shown in Figure 1, it is integral using electric welding sizing
Ordinary arc weldering can be used in symmetrical welding fabrication, welding again afterwards；
4. longitudinal long steel plate 1 and lateral intermediate bulkhead 3 is waited for weld postcooling；
5. 2 blocks of lateral ends steel plates are symmetrically welded longitudinal long 1 end of steel plate；
6. 2 blocks of top steel plates 4 are symmetrically welded at the top of longitudinal long 1 both ends of steel plate, Large bridge corbel as shown in Figure 1 is formed
The lower support built-in fitting of frame；
7. when 5 pier shaft assembling reinforcement of bridge pier, a lateral stiffener, tool are set up at 6 bottom designed elevation of bridge supporting frame
Body is fixed on using welding or improving bud grafting on the vertical reinforcement of bridge pier 5, the lower support for positioning large bridge bracket 6
The position of built-in fitting 7；
8. above the lower support built-in fitting of crane lifting large bridge bracket 6 to lateral stiffener, according to practical feelings
Condition is finely tuned and the vertical applied force reinforcement location of built-in fitting conflict；
9. being fixed on the lower support built-in fitting to pier shaft vertical reinforcement of large bridge bracket using binding or spot welding；
10. cutting hole in advance in the corresponding position of lower support built-in fitting of large bridge bracket before concrete blinding installation
Hole, the hole length of side require 2-4 centimetres more than the lower support built-in fitting length of side；
11. gap between large bridge bracket lower support built-in fitting and template is used after the completion of template installation is fixed
The materials such as rubber strip are blocked, and carry out bridge pier concrete pours work；
12. when mounting bracket, bracket lower end is close to the top steel plate 4 of the lower support built-in fitting of large bridge bracket,
Realize supporting role of the present invention to bridge supporting frame, it is ensured that bridge subsequent construction safety；
13. after bridge construction, using gas cutting mode by the lower support built-in fitting of the large bridge bracket outside bridge pier
Part is cut away, and carries out sand finish, antirust treatment to cutting position, to ensure the aesthetics and durability of bridge pier.
When installing bridge supporting frame, if not taking any reinforcement measure, bridge supporting frame is directly connected with bridge pier (such as Fig. 3
It is shown), bridge supporting frame is supported directly on bridge pier like short cantilever beam at this time, and contact surface between the two is smaller.When bridge support
When frame bears top construction loads, load is mainly transferred to bridge pier by bridge supporting frame by itself contact with bridge pier, as biography
The main node of load is passed, the bridge pier concrete of bridge supporting frame lower part is bound to bear larger local compression, and then occurs
Conquassation, cracking and other issues.And once there is bridge supporting frame lower part concrete destruction, then bridge supporting frame is possible in work progress
Position offset occurs, alignment control when this will not only seriously affect the precompressed of bridge later stage can also destroy a bridge into bridge rear abutment
Intensity, durability, aesthetics；If bridge supporting frame offset is larger, it is also possible to which directly result in that top Bailey bracket caves in applies
Work safety accident.
Pass through a pre-buried lower support being welded with steel plate, " bridge support before not artificially being arranged in bridge pier
Frame --- bridge pier " transmission load mode be improved to the transmission load of " bridge supporting frame --- lower support built-in fitting --- bridge pier "
Mode.The contact area of the lower support built-in fitting and bridge pier is much larger than, and being in direct contact for front axle beam bracket and bridge pier is not arranged
Front axle beam bracket lower part concrete will can not be arranged in face, the intermediate node transmitted using this lower support built-in fitting as load
Bearing the unfavorable force-bearing situation of local compression improves the uniform pressure for becoming large contact surface, and concrete stress value also will be with big
Amplitude declines, and effectively prevents bridge pier concrete on the downside of bridge supporting frame and damages by pressure, cracks and relevant construction problem.Meanwhile it should
Lower support built-in fitting, along the symmetrically arranged mode of bridge pier, can also be reduced to the greatest extent since construction is led in the construction process using whole
The eccentric load of cause, and then thoroughly realize effective control to bridge supporting frame position, it prevents from generating because of bridge supporting frame position offset
Negative consequence.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of lower support built-in fitting of large bridge bracket, which is characterized in that including longitudinal long steel plate (1), lateral ends
Steel plate (2), lateral intermediate bulkhead (3) and top steel plate (4)；The long steel plate in longitudinal direction (1) is provided with two pieces, and two parallel put
It sets, the perpendicular lateral ends steel plate (2) of fixed welding at the both ends of longitudinal long steel plate (1), in two long steel plates in longitudinal direction
(1) fixed between to weld perpendicular lateral intermediate bulkhead (3), lateral intermediate bulkhead (3) is correspondingly arranged at both ends respectively,
The upper end of the long steel plate in longitudinal direction (1) is fixedly welded with top steel plate (4).
2. a kind of lower support built-in fitting of large bridge bracket according to claim 1, it is characterised in that：The top
The both ends of steel plate (4) correspond to lateral ends steel plate (2) and lateral intermediate bulkhead (3) respectively.
3. a kind of lower support built-in fitting of large bridge bracket according to claim 1, it is characterised in that：The longitudinal direction
The length of long steel plate (1) is more than bridge pier width, and the both ends of longitudinal long steel plate (1) extend outwardly, development length 0.4-
0.5m。
4. a kind of lower support built-in fitting of large bridge bracket according to claim 1, it is characterised in that：The longitudinal direction
The width of long steel plate (1) is more than 0.4m.
5. a kind of lower support built-in fitting of large bridge bracket according to claim 1, it is characterised in that：The transverse direction
The width of end steel plate (2) is of same size with longitudinal long steel plate (1), and the length-width ratio of lateral ends steel plate (2) is 0.8-
1.2。
6. a kind of lower support built-in fitting of large bridge bracket according to claim 1 or 2, it is characterised in that：It is described
The width of top steel plate (4) is of same size with longitudinal long steel plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477746.XA CN108643047A (en) | 2018-05-18 | 2018-05-18 | A kind of lower support built-in fitting of large bridge bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477746.XA CN108643047A (en) | 2018-05-18 | 2018-05-18 | A kind of lower support built-in fitting of large bridge bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108643047A true CN108643047A (en) | 2018-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477746.XA Pending CN108643047A (en) | 2018-05-18 | 2018-05-18 | A kind of lower support built-in fitting of large bridge bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108643047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879470A (en) * | 2021-11-19 | 2022-01-04 | 上海振华重工(集团)股份有限公司 | Shipping support binding device and method suitable for super-long steel structure bridge |
Citations (7)
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|---|---|---|---|---|
| JPH0641918A (en) * | 1992-07-20 | 1994-02-15 | Kawada Kensetsu Kk | Support structure of form device for molding bridge and bridge construction method using support structure |
| CN201128881Y (en) * | 2007-11-15 | 2008-10-08 | 中交第一公路工程局有限公司 | Preformed supporting structure in bent cap construction |
| CN201214768Y (en) * | 2008-05-19 | 2009-04-01 | 中铁十一局集团第二工程有限公司 | Pier stud through type coping template support |
| CN204825668U (en) * | 2015-08-04 | 2015-12-02 | 中交第二航务工程局有限公司 | Mud jacking formula bracket structure behind steel pipe support |
| CN106284094A (en) * | 2016-09-18 | 2017-01-04 | 中铁二十局集团有限公司 | A kind of bridge construction concrete adhesion type prestressed girder support |
| CN206438389U (en) * | 2017-01-17 | 2017-08-25 | 湖北商贸学院 | Pier stud connecting bracket component |
| CN107419664A (en) * | 2017-05-30 | 2017-12-01 | 林再颐 | A kind of Support bracket structure of bridge construction |
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2018
- 2018-05-18 CN CN201810477746.XA patent/CN108643047A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641918A (en) * | 1992-07-20 | 1994-02-15 | Kawada Kensetsu Kk | Support structure of form device for molding bridge and bridge construction method using support structure |
| CN201128881Y (en) * | 2007-11-15 | 2008-10-08 | 中交第一公路工程局有限公司 | Preformed supporting structure in bent cap construction |
| CN201214768Y (en) * | 2008-05-19 | 2009-04-01 | 中铁十一局集团第二工程有限公司 | Pier stud through type coping template support |
| CN204825668U (en) * | 2015-08-04 | 2015-12-02 | 中交第二航务工程局有限公司 | Mud jacking formula bracket structure behind steel pipe support |
| CN106284094A (en) * | 2016-09-18 | 2017-01-04 | 中铁二十局集团有限公司 | A kind of bridge construction concrete adhesion type prestressed girder support |
| CN206438389U (en) * | 2017-01-17 | 2017-08-25 | 湖北商贸学院 | Pier stud connecting bracket component |
| CN107419664A (en) * | 2017-05-30 | 2017-12-01 | 林再颐 | A kind of Support bracket structure of bridge construction |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879470A (en) * | 2021-11-19 | 2022-01-04 | 上海振华重工(集团)股份有限公司 | Shipping support binding device and method suitable for super-long steel structure bridge |
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Application publication date: 20181012 |