CN206607506U - A kind of through type adds the capping construction support of passive stress trapezoid block - Google Patents
A kind of through type adds the capping construction support of passive stress trapezoid block Download PDFInfo
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- CN206607506U CN206607506U CN201720222923.0U CN201720222923U CN206607506U CN 206607506 U CN206607506 U CN 206607506U CN 201720222923 U CN201720222923 U CN 201720222923U CN 206607506 U CN206607506 U CN 206607506U
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- trapezoid block
- crossbeam
- cantilever
- bridge pier
- construction support
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Abstract
The utility model discloses the capping construction support that a kind of through type adds passive stress trapezoid block, it is used for the crossbeam through bridge pier including at least two, bridge pier is stretched out and as cantilever in the two ends of every crossbeam, and the bottom of the cantilever is installed with the trapezoid block for supporting cantilever；Jack is separately installed with above the cantilever at two ends on every crossbeam, longeron has been set up respectively positioned at the top of the jack of homonymy, two longerons are separately positioned on the both sides of bridge pier and linked together by multiple Screw arbor with nut at both-ends.The utility model has that stress is clear and definite, force path simple, and resistance to overturning is good, simple to operate, safe and reliable, can economize on resources again, with good promotion and application value.
Description
Technical field
The utility model is related to technical field of bridge construction, and in particular to a kind of through type adds passive stress trapezoid block
Capping construction support.
Background technology
At present, the traditional construction method of bent cap has Hold Hoop method, raft support method, big steel pipe method.Wherein Hold Hoop method is to pass through
Anchor ear and pier stud clamp the maximum static friction force that produces undertake bent cap deadweight, in length and breadth a kind of of the construction loads such as beam and template cover
Beam construction method, is used for the Coping Construction of circular pier shaft；Raft support method is to use bowl fastening type, disc type or heavy gate-type branch
Frame sets up a kind of construction method of Coping Construction platform；Big steel pipe method be using more than diameter 200mm seamless steel pipe and longeron,
The beam column strutting system that crossbeam is set up as Coping Construction job platform a kind of construction method.
The bent cap of non-circular pier shaft, typically can not be using Hold Hoop method construction；Because raft support method will to foundation bearing capacity
Ask high, influence the current of existing vehicle and pedestrian under existing urban viaduct, construction safety and traffic organization difficulty are larger, institute
There is certain limitation with the Coping Construction to Urban Bridge；Although big steel pipe method is reduced to space under bridge through lane
Occupation rate, can also take certain channel space unavoidably, and influence of being passed through on the traffic of Urban Bridge construction period is larger, while right
The material of big steel pipe, installation and welding requirements are higher, and construction technology is cumbersome, for middle-size and small-size bent cap big steel pipe support practicality
It is relatively low.
The content of the invention
The purpose of this utility model is aiming at the bent cap for the high pier of rectangle, it is impossible to use raft support method and big steel pipe
There is provided the capping construction support that a kind of through type adds passive stress trapezoid block for method construction bent cap.
The technical solution of the utility model is：A kind of through type adds the capping construction support of passive stress trapezoid block, bag
At least two crossbeams being used for through bridge pier are included, the two ends stretching bridge pier of every crossbeam is simultaneously used as cantilever, the bottom of the cantilever
It is installed with the trapezoid block for supporting cantilever；
Jack is separately installed with above the cantilever at two ends on every crossbeam, positioned at the top point of the jack of homonymy
Jia She there is not longeron, two longerons are separately positioned on the both sides of bridge pier and linked together by multiple Screw arbor with nut at both-ends.
The trapezoid block includes the trapezoid block top plate being fixedly connected with cantilever bottom by connecting bolt, the trapezoid block top
The side that plate is in contact with bridge pier is vertical provided with trapezoid block side plate, provided with multiple between the trapezoid block top plate and trapezoid block side plate
Trapezoid block side plate between the trapezoid block floor being parallel to each other, adjacent two trapezoid blocks floor is used to adjust trapezoid block provided with multiple
The regulating bolt in gap between side plate and bridge pier.
The crossbeam is located at 80-100cm below pier coping portion.
The trapezoid block floor is that the regulating bolt between 3, adjacent two trapezoid blocks floor is 3.
The crossbeam is shaped steel crossbeam, and the longeron is i-beam structure.
The regulating bolt is double nut regulating bolt.
The jib-length of the crossbeam exceeds bridge pier 30-50cm.
The utility model compared with prior art, with advantages below：
1st, system stress is clear and definite, force path is simple.The system is to pass through the weight of bent cap support, template and bent cap
Cross shaped steel crossbeam and reach pier stud, born by pier stud, force path is simply clear and definite；
2nd, system stability is secure.Trapezoidal block assembly of the present utility model plays a part of passive stress, can be effective
Deflection deformation of the suppressive gooseneck cantilever end under bent cap support and bent cap Gravitative Loads, greatly improves the carrying energy of crossbeam
Power and resistance capacity to deformation；Two longerons are connected by Screw arbor with nut at both-ends, it is to avoid longeron gives birth to displacement because of unbalance stress；
3rd, system has controllability.Trapezoidal block assembly can be played by adjusting the clamping between high-strength bolt and pier shaft
Intermal force；The utility model falls frame, simple and convenient, time and labour saving using four jack auxiliary；
4th, system construction technology and simple structure, easily implementation.Jack, trapezoid block used in device of the present utility model
Device（Steel plate welding processing）, shaped steel, Screw arbor with nut at both-ends can all gather materials on the spot, general building site can find corresponding material and add
Work, purchase is also convenient for simply, and construction cost is smaller.
Brief description of the drawings
Fig. 1 is the structural representation after the utility model Coping Construction；
Fig. 2 is the structural representation before the utility model Coping Construction；
Fig. 3 is the attachment structure schematic diagram of utility model trapezoid block and crossbeam；
Fig. 4 is the stereogram of the utility model trapezoid block；
Fig. 5 is the A direction views of the utility model trapezoid block；
Fig. 6 is the utility model bridge pier reserving hole schematic diagram；
In figure：1st, longeron, 2, Screw arbor with nut at both-ends, 3, jack, 4, crossbeam, 5, trapezoid block, 5-1, trapezoid block floor, 5-2, ladder
Shape block top plate, 5-3, trapezoid block top plate, 6, connecting bolt, 7, regulating bolt, 8, reserving hole, 9, bridge pier, 10, bent cap.
Embodiment
Here is that the utility model is further illustrated in conjunction with the accompanying drawings and embodiments.
Reference picture 1- Fig. 5, device of the present utility model includes longeron 1, and longeron 1 is I-steel, is embodied according to calculating
Select the I-steel of 36#-63# scopes；Screw arbor with nut at both-ends 2, a diameter of φ 25 of Screw arbor with nut at both-ends 2 round steel；Jack 3, jack 3
On the cantilever of crossbeam 4, two jack 3 are installed on every shaped steel crossbeam 4；Crossbeam 4, crossbeam 4 is shaped steel crossbeam, according to
The form and size of bent cap 10 calculate selection 25#-32# shaped steel；Trapezoid block 5, trapezoid block 5 is arranged on the cantilever bottom of crossbeam 4, uses
In the overhanging cantilever of support.
Such as Fig. 6, in the appropriate location reserving hole 8 of bridge pier 9, the general model according to longeron 1 in position of reserving hole 8,
Height of jack 3 etc., the suggestion of reserving hole 8 is reserved in below the pier top of bridge pier 9 at 80cm-100cm；By Force Calculation and
CAD draws, it is determined that required longeron 1, the length of crossbeam 4, size, prepared screw-bolt hole position etc.；The jib-length of crossbeam 4 exceeds pier shaft
30cm-50cm；According to the form of bent cap 10 and size, the size further according to shaped steel crossbeam 4 determines the size, standby of trapezoidal block assembly 5
Material processing.
As shown in Figure 1, Figure 2, take the device construction step of bent cap 10 as follows：
The first step, ready crossbeam 4 is penetrated the reserving hole 8 of bridge pier 9；
Second step, installs trapezoidal block assembly 5, such as Fig. 4, Fig. 5；Trapezoid block top plate 5-2 passes through two rows, 4 high strong ties of M24
Bolt 6 is fixed with the bottom wing listrium of crossbeam 4；Trapezoid block side plate 5-3 pre-installs two row M28 regulating bolts 7, and trapezoid block floor 5-1 is used for
Trapezoid block top plate 5-2 and trapezoid block side plate 5-3 are reinforced, strength and stability is improved；When trapezoid block 5 is installed, it should ensure that
2-3cm gaps are reserved between trapezoid block side plate 5-3 and bridge pier 9, after trapezoid block 5 is fixed with crossbeam 4, by adjusting M28 double nuts
Regulating bolt 7 and the gap of bridge pier 9, make trapezoid block 5 pass through regulating bolt 7 to clamp pier shaft.
3rd step, after trapezoid block 5 is fixed, places adjustable jack 3 on the cantilever of crossbeam 4 respectively, and by jack 3
Jacking certain altitude（5cm-8cm）, longeron 1 is then placed on the jack 3 of homonymy；Longeron 1 is drawn for 2 pairs by Screw arbor with nut at both-ends,
Ensure the stability of longeron 1, as shown in Figure 2.
4th step, carries out capping beam template, reinforcing bar and concrete construction on longeron 1；
5th step, the concrete strength of bent cap 10 is reached after design requirement（Have a prestressed strand need to be complete in first time tensioning
Into）It can implement to fall frame.Fall frame by adjusting the height of jack 3, jack 3 is unloaded, remove jack 3 and longeron 1, put
The regulating bolt 7 of loose trapezoid block 5, removes the connecting bolt 6 of trapezoid block 5 and crossbeam 4, and extracts crossbeam 4 out, blocks the pre- of bridge pier 9
Box out hole 8.
The utility model is not limited to above-mentioned embodiment, in the knowledge that those skilled in the art possess,
It can also be made a variety of changes on the premise of the utility model objective is not departed from, the content after change still falls within the utility model
Protection domain.
Claims (7)
1. a kind of through type adds the capping construction support of passive stress trapezoid block, it is characterised in that：It is used for including at least two
Through the crossbeam of bridge pier, bridge pier is stretched out and as cantilever in the two ends of every crossbeam, and the bottom of the cantilever is fixedly mounted useful
In the trapezoid block of supporting cantilever；
Jack is separately installed with above the cantilever at two ends on every crossbeam, frame is distinguished in the top positioned at the jack of homonymy
Provided with longeron, two longerons are separately positioned on the both sides of bridge pier and linked together by multiple Screw arbor with nut at both-ends.
2. a kind of through type according to claim 1 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The trapezoid block includes the trapezoid block top plate that is fixedly connected with cantilever bottom by connecting bolt, the trapezoid block top plate with
The side that bridge pier is in contact vertically is provided with trapezoid block side plate, provided with multiple mutual between the trapezoid block top plate and trapezoid block side plate
Trapezoid block side plate between parallel trapezoid block floor, adjacent two trapezoid blocks floor is used to adjust trapezoid block side plate provided with multiple
The regulating bolt in gap between bridge pier.
3. a kind of through type according to claim 1 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The crossbeam is located at 80-100cm below pier coping portion.
4. a kind of through type according to claim 2 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The trapezoid block floor is that the regulating bolt between 3, adjacent two trapezoid blocks floor is 3.
5. a kind of through type according to claim 1 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The crossbeam is shaped steel crossbeam, and the longeron is i-beam structure.
6. a kind of through type according to claim 2 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The regulating bolt is double nut regulating bolt.
7. a kind of through type according to claim 1 adds the capping construction support of passive stress trapezoid block, its feature exists
In：The jib-length of the crossbeam exceeds bridge pier 30-50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222923.0U CN206607506U (en) | 2017-03-08 | 2017-03-08 | A kind of through type adds the capping construction support of passive stress trapezoid block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222923.0U CN206607506U (en) | 2017-03-08 | 2017-03-08 | A kind of through type adds the capping construction support of passive stress trapezoid block |
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| CN206607506U true CN206607506U (en) | 2017-11-03 |
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| CN201720222923.0U Active CN206607506U (en) | 2017-03-08 | 2017-03-08 | A kind of through type adds the capping construction support of passive stress trapezoid block |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487706A (en) * | 2018-12-14 | 2019-03-19 | 东南大学 | A kind of assembled segmentation bent cap mounting device and method |
| CN110528376A (en) * | 2019-09-16 | 2019-12-03 | 中建五局土木工程有限公司 | Buck plate component, load carrier and construction technology |
| CN113089499A (en) * | 2021-05-14 | 2021-07-09 | 杭州三阳建设工程有限公司 | Fabricated combined support platform for bridge capping beam construction and mounting method thereof |
-
2017
- 2017-03-08 CN CN201720222923.0U patent/CN206607506U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487706A (en) * | 2018-12-14 | 2019-03-19 | 东南大学 | A kind of assembled segmentation bent cap mounting device and method |
| CN109487706B (en) * | 2018-12-14 | 2020-05-08 | 东南大学 | Assembling type sectional bent cap mounting device and method |
| CN110528376A (en) * | 2019-09-16 | 2019-12-03 | 中建五局土木工程有限公司 | Buck plate component, load carrier and construction technology |
| CN113089499A (en) * | 2021-05-14 | 2021-07-09 | 杭州三阳建设工程有限公司 | Fabricated combined support platform for bridge capping beam construction and mounting method thereof |
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