CN108708296A - A kind of crab tongs-type deviation correcting device and construction technology being arranged in bridge pier bottom - Google Patents
A kind of crab tongs-type deviation correcting device and construction technology being arranged in bridge pier bottom Download PDFInfo
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- CN108708296A CN108708296A CN201810881825.7A CN201810881825A CN108708296A CN 108708296 A CN108708296 A CN 108708296A CN 201810881825 A CN201810881825 A CN 201810881825A CN 108708296 A CN108708296 A CN 108708296A
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- crab
- tongs
- claw
- bridge pier
- crab claw
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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
Abstract
The present invention relates to technical field of bridge construction, and in particular to a kind of deviation correcting device and construction technology of bridge pier.A kind of crab tongs-type deviation correcting device and construction technology being arranged in bridge pier bottom provided by the invention, it includes the fixed column on pier stud that crab tongs-type, which reinforces ontology, backplate is connected on fixed part, fixed part is connect with sliding part, the pedestal of sliding part is connect with the arc body for being bent downwardly setting, and arc body is connect with crab chela portion, and crab chela portion includes the dynamic crab claw and determines the crab claw, crab claw point is arranged in locating slot, and crab chela portion is connect with the dynamic crab claw；The first valve in sliding part on the fuel feeding and unloading line of hydraulic device controls piston rod movement, and the dynamic crab claw are inverted V-shape structure with the crab claw are determined, and the inside for determining the crab claw is equipped with several crab teeth.Crab tongs-type deviation correcting device of the present invention in bridge pier bottom is reasonable for structure, and dismounting is easy for installation, can effectively be rectified a deviation to bridge pier, and effect becomes apparent from, construction technology is simpler and short construction period.
Description
Technical field
The invention belongs to technical field of bridge construction, and in particular to a kind of crab tongs-type deviation correcting device being arranged in bridge pier bottom
And construction technology.
Background technology
Bridge pier is the indispensable part in bridge construction, wherein being mainly made of pier and pier stud.Pier and pier stud
Supporting bridge across agent structure, be subjected to the whole load that bridge span structure transmits, but also directly bear soil pressure, flow
A variety of loads such as impact force, ice pressure, ship impact force, so pier shaft and abutment body all have enough intensity, rigidity and stabilization
Property.But in wherein numerous bridge piers after bridge construction, it is a it is other can there is a phenomenon where pier slopes.Currently, one in construction
As can take following methods and so that bridge pier is generated inclined motive power to eliminate：1）Treat correction bridge abutment correcting negative direction
All spannings superstructure carry out temporary consolidation to form a stress entirety；2）It installs and jacks in pier coping portion to be rectified a deviation
Device is jacked top beam body by jacking apparatus；3）Reaction frame and correction thousand are set between beam body in bridge pier to be rectified a deviation and thereon
Jin top, portion's beam body is laterally pushed to by correction jack, is shifted onto bridge pier to be rectified a deviation by pushing to the reaction force that portion's beam body generates
Vertical position；Finally restore to the original state.
But above method long construction period, mounting process are complicated, the effect of correction bridge pier is poor and of high cost.
Invention content
The technical problem to be solved in the present invention is, provide it is a kind of be arranged bridge pier bottom crab tongs-type deviation correcting device and
Construction technology, by the crab tongs-type deviation correcting device and construction technology of setting, realization effectively rectifies a deviation to run-off the straight bridge pier, shortens
Construction period, simplifies mounting process, improves the efficiency of the repair correction to bridge pier, and reduces applying for correction bridge pier
Work cost.
For achieving the above object, a kind of crab tongs-type deviation correcting device being arranged in bridge pier bottom provided by the invention, institute
It includes that several crab tongs-types being circular layout reinforce ontology to state crab tongs-type deviation correcting device, and each crab tongs-type reinforces the one of ontology
End is connected to the outside of pier stud, and the other end that the crab tongs-type reinforces ontology is connect with reinforcing body, and the crab tongs-type reinforces ontology
Include the fixed column with the blind hole plugged and fixed on pier stud, the fixed column is fixed in backplate corresponding with pier stud outer shape
On, the backplate is connected on fixed part, and the fixed part is connect with the sliding part for adjusting horizontal direction position, the cunning
Dynamic portion is equipped with the pedestal being obliquely installed upwards, and the pedestal is connect with the arc body for being bent downwardly setting, the arc body and
Crab chela portion connects, and crab chela portion includes the dynamic crab claw connected by first rotating shaft and determine the crab claw, the dynamic crab claw and determines the crab claw
On crab claw point setting reinforcing body on locating slot in, hole that crab chela portion is equipped with passes through fixed pin shaft and connects with the dynamic crab claw
It connects；Hydraulic device is equipped on the outside of the sliding part, the first valve that the fuel feeding and unloading line of the hydraulic device are equipped with is used
To control the piston rod for carrying out back and forth movement in oil cylinder, the end of the piston rod and the second shaft axis company on the dynamic crab claw
It connects.
Preferred technical solution, the dynamic crab claw are inverted V-shape structure with the crab claw are determined, described to determine to set on the inside of the crab claw
There are several crab teeth.
Tip position in preferred technical solution, the dynamic crab claw and the crab claw point determined on the crab claw is respectively equipped with lifting and lives
Plug, the lifting piston are carried out back and forth movement, first lifting by the first lifting cylinder and the control of the second lifting cylinder respectively
The hydraulic pressure bye-pass that the fuel feeding and unloading line of oil cylinder and the second lifting cylinder and hydraulic device are equipped with, the hydraulic pressure bye-pass
The second valve being equipped with, which is used for controlling being arranged, to be moved the crab claw and is determining the second lifting cylinder and the first lifting of the crab claw point on the crab claw
Oil cylinder carries out elevating movement.
Preferred technical solution, the fixed part are that connected structure, the connected structure pass through fixation each other with sliding part
Bolt is fixedly connected.
Preferred technical solution, the reinforcing body are round structure or oval structure.
Preferred technical solution, the reinforcing body are equipped with support slot, and the locating slot is arranged in support slot.
Preferred technical solution, ranging from 30 ° ~ 40 ° of the third included angle that the sliding part is equipped with pedestal, the arc
Ranging from 110 ° ~ 135 ° of the first included angle that body is equipped with, crab chela portion and determines the second angle angle being equipped between the crab claw
Ranging from 135 ° ~ 155 ° of degree.
The angle of preferred technical solution, the third angle is 30 °, 35 ° or 40 °, and the angle of first angle is
110 °, 115 °, 120 ° or 135 °, the angle of second angle is 135 °, 140 °, 145 ° or 155 °.
The present invention also provides a kind of construction technology being arranged in the crab tongs-type deviation correcting device of bridge pier bottom, the construction works
Skill includes：
Step 1）Cofferdam will be set around bridge pier, and the cleaning that usage mining machinery will carry out in cofferdam will be under the pier stud of bridge pier
Portion and pier expose, and are detected on the outside of pier, find it is pre-buried after solid foundation fix prefabricated reinforcing body, reinforce
It is two or more that body, which is equipped with support slot and the reinforcing body of splicing structure, and assembly is fixed in more than two reinforcing bodies；
Step 2）The fixed column being fixed on backplate is carried out in the blind hole that interference fit is inserted on pier stud, is open using blind hole
The top rade being arranged in place is well on to be inserted into and fix, then sliding part is fixed by screwing the fixed part of fixing bolt and backplate
Connection；
Step 3）The crab claw point determined on the crab claw is put into the locating slot of inside, reuses the control device of hydraulic device by oil cylinder
On piston rod stretch out or shrink suitable position, while the crab claw point on the dynamic crab claw being put into the locating slot in outside and is fixed pair
After the angles and positions answered, fixed pin shaft is penetrated in the hole that crab chela portion is equipped with and is fixedly connected so that the dynamic crab claw and crab chela portion
Fixation；
Step 4）The second valve switch is opened, so that the lifting piston on the second lifting cylinder and the first lifting cylinder is stretched out, to bridge
Pier carries out positional deviation correction and correction, after bridge pier, which is remedied to, proceeds to suitable position, closes the second valve；
Step 5）Usage mining machinery carries out excavation cleaning in the run-off the straight side of pier and pier stake, searches inclined raw because clearly
Except after the Tilt factor or part to being mined carries out concreting, the depth of concreting is greater than or equal to pier stud most
Big width carries out curing step to the concrete poured simultaneously after concreting；
Step 6）After the concrete poured completely solidification, the crab tongs-type deviation correcting device is removed.
Preferred technical solution, the construction technology is in step 5）In three layers of cooling that the concrete that pours carries out are supported
Shield, it is described three layers cooling curing steps include it is following step by step：
Step by step 1）The first insulating layer is first laid on the concrete that surface pours, spreading thickness range is on the first insulating layer
The granulometric range of the first trash ice layer of 10mm-15mm, the first trash ice layer is 5-8mm, and the second heat preservation is then laid on trash ice layer
Layer；
Step by step 2）Spreading thickness range is the second trash ice layer of 15mm-20mm, of the second trash ice layer on the second insulating layer
Grain ranging from 10-15mm, then third insulating layer is laid on the second trash ice layer；
Step by step 3）Spreading thickness range is the third trash ice layer of 20mm-30mm, of third trash ice layer on third insulating layer
Grain ranging from 15-20mm, finally wraps up the 4th insulating layer on third trash ice layer.
Compared with prior art, the present invention having the advantages that：
1, the crab tongs-type deviation correcting device of the present invention being arranged in bridge pier bottom is reasonable for structure, and dismounting is easy for installation.
2, the present invention becomes apparent from bridge abutment correcting construction effect and controllably, construction is more convenient, short construction period.
3, crab tongs-type deviation correcting device of the present invention can be reused, and cost is lower.
Description of the drawings
Fig. 1 is the structure chart of the present invention being arranged in the crab tongs-type deviation correcting device of bridge pier bottom；
Fig. 2 is a structure top view of reinforcing body in Fig. 1；
Fig. 3 is the internal structure chart that crab tongs-type reinforces ontology in Fig. 1；
Fig. 4 is the internal structure enlarged drawing of A points in Fig. 1；
Fig. 5 is another structure top view of reinforcing body in Fig. 1.
Reference numeral
In figure：B is the first angle, and C is the second angle, and D is third angle, 1-pier；2-pier studs, 201-blind holes, 202-
Top rade；3-bridge plates；4-crab tongs-types reinforce ontology, 401-fixed columns, 402-backplates, 403-hydraulic devices, 404-arcs
Body, the 405-the first valve, 406-crab chela portions, 407-first rotating shafts, 408-piston rods, the 409-the second shaft, 410-
The dynamic crab claw, the 411-the first lifting cylinder, 412-crab claw point, 413-fixed pin shafts, 414-crab teeth, 415-lifting pistons,
416-the second lifting cylinder, 417-determine the crab claw, 418-hydraulic pressure bye-passes, 419-oil cylinders, the 420-the second valve, 421-seats
Body, 422-sliding parts, 423-fixed parts, 424-fixing bolts；5-support slots；6-reinforcing bodies；7-pier stakes；8-positioning
Slot.
Specific implementation mode
Specific embodiments of the present invention are described in detail below with reference to attached drawing.
Embodiment 1
As shown in Figs 1-4, a kind of crab tongs-type deviation correcting device being arranged in bridge pier bottom provided by the invention, setting pier 1 with
The position of pier stud 2, bridge pier therein include the pier 1 being arranged below pier stud 2, are equipped with below pier 1 fixed for bridge pier
Pier stake 7, the upper surface of pier stud 2 are fixedly connected with bridge plate 3.Wherein, the parts of crab tongs-type deviation correcting device are steel construction, crab tongs-type
The concrete structure of deviation correcting device includes that several crab tongs-types being circular layout on pier stud 2 reinforce ontology 4, and crab tongs-type reinforces ontology
4 quantity is specifically arranged according to the position and inclined degree of bridge pier run-off the straight.In the present embodiment, crab tongs-type reinforces ontology
4 quantity is 6, and crab tongs-type is reinforced ontology 4 and is also uniformly arranged on the reinforcing body 6 of round structure according to circular ring type, reinforcing body 6
On be additionally provided with support slot 5, locating slot 8 is arranged in support slot 5,8 at least two or more locating slot, and locating slot 8 is pairs of
Relative arrangement thereof.Wherein, one end of each crab tongs-type reinforcing ontology 4 is connected to the outside of pier stud 2, and crab tongs-type reinforces ontology 4
The other end be arranged on reinforcing body 6, the blind hole 201 that crab tongs-type is reinforced on fixed column 401 and pier stud 2 on ontology 4 is grafting
Structure is fixed, and fixed column 401 is cylindrical shape or six rib structures, in order to make fixed column 401 smoothly be inserted into blind hole 201, blind hole
Be provided with upward top rade 202 in 201 opening, i.e., blind hole 201 is equipped with big opening, play the role of be can more smoothly
It determines the position of fixed column 401 and is smoothly inserted into.Wherein, fixed column 401 is round cylinder or rectangular cylinder, and the other end is solid
It is connected on backplate corresponding with 2 outer shape of pier stud 402, pier stud 2 and backplate 402 are arcuate structure, the shield of arcuate structure
Plate 402 closer can be wrapped in 2 outside of pier stud, ensure that the contact surface bigger of two components, the frictional force undertaken are more equal
Even, more preferable to the support effect of pier stud 2, backplate 402 is more stable to the support of pier stud 2.Wherein, backplate 402 is stationarily connected to
On fixed part 423, the mode of welding or the casting technique of global formation specifically can be used, fixed part 423 is that with sliding part 422
This connected structure, connected structure are fixedly connected by fixing bolt 424；Make sliding part 422 that can move back on the fixed part 423
Dynamic, the setting of sliding part 422 is to be able to realize the position for adjusting and determining its horizontal direction, sliding part 422 with consolidate
Determine portion 423 to be fixedly connected and slide by the elastic of fixing bolt 424.Wherein preferred scheme, it is affixed on sliding part 422
The pedestal 421 being obliquely installed on oriented, sliding part 422 and pedestal 421 are equipped with third angle D, pedestal 421 and are bent downwardly setting
Arc body 404 connect, arc body 404 be equipped with the first included angle B, the first included angle B be arcuate structure angle, arc body 404 and crab
The end in chela portion 406 is fixedly connected, and wherein crab chela portion 406 and determines to be equipped with the second angle C between the crab claw 417, the first included angle B, the
Two angle C and third angle D constitute the structure of the imitative crab claw, and what is played is the uniform force distribution in mechanics, i.e. balancer is made
With crab tongs-type can be completed reinforce ontology 4 bearing the supporting role of weight, the weight that also will can reasonably undertake to tilting bridge pier
Amount is transmitted on reinforcing body 6, while playing the structure feature that other structures cannot be constituted, and also saves the Steel material of structure.
Wherein, the structure in crab chela portion 406 further includes the dynamic crab claw 410 connected by first rotating shaft 407 and determines the crab claw 417, moves the crab claw 410
In the locating slot 8 being arranged on reinforcing body 6 with the crab claw point 412 determined on the crab claw 417, what locating slot 8 played is to prevent crab claw point 412
After positioning, it is prevented to slide.The hole that crab chela portion 406 is equipped with is attached by fixed pin shaft 413 and the dynamic crab claw 410
, this some holes be it is multiple, can be transversely arranged multiple, also can longitudinal arrangement it is multiple, can be arranged with longitudinal arrangement with transversely arranged
Multiple modes is arranged, is finally advisable so that the position in fixed crab chela portion 406 and the dynamic crab claw 410 can be facilitated to fix；Outside sliding part 422
Side is equipped with hydraulic device 403, and the valve of oil feed line and each control device is arranged inside crab chela portion 406（This is existing
Technology repeats no more）, the first valve 405 that the fuel feeding and unloading line of hydraulic device 403 are equipped with is used for controlling in oil cylinder
The piston rod 408 of back and forth movement, the end of piston rod 408 and 409 axis connection of the second shaft on the dynamic crab claw 410 are carried out in 419,
The stretching of piston rod 408 drives the dynamic crab claw 410 to carry out angle change with contraction.Wherein, the crab claw 410 are moved and determine the crab claw 417 and are
Inverted V-shape structure, the inside for determining the crab claw 417 are equipped with several crab teeth 414, and the setting of crab tooth 414 can be played to the crab claw
410 improve the effect of intensity and support force with the crab claw 417 are determined, and the outside arcuate structure of crab tooth 414 can also play dispersive stress
Effect.
Wherein, the tip position moved the crab claw 410 and determined in the crab claw point 412 on the crab claw 417 is respectively equipped with lifting piston
415, lifting piston 415 respectively by the first lifting cylinder 411 and the second lifting cylinder 416 control carry out back and forth movement, first
The hydraulic pressure bye-pass that the fuel feeding and unloading line of lifting cylinder 411 and the second lifting cylinder 416 and hydraulic device 403 are equipped with
418 connections, the second valve 420 being equipped with hydraulic pressure bye-pass 418 are arranged in the dynamic crab claw 410 to control and determine on the crab claw 417
Second lifting cylinder 416 of crab claw point 412 and the first lifting cylinder 411 carry out elevating movement, when the second lifting cylinder 416 and the
When one lifting cylinder 411 increases, lifting piston 415 is stretched out out of crab claw point 412, on top to locating slot 8, plays the work of jack
With rectifying a deviation to inclined bridge pier.
In the present embodiment, preferred technical solution, the first included angle B, the second angle C and third angle D structures are combined as：It is sliding
Ranging from 30 ° ~ 40 ° of the third angle D angle that dynamic portion 422 is equipped with pedestal 421, the first included angle B angle that arc body 404 is equipped with
Ranging from 110 ° ~ 135 °, crab chela portion 406 and determine the second angle C angular ranges being equipped between the crab claw 417 be 135 ° ~ 155 °.Its
In, the angle of third angle D is preferably 30 °, 35 ° or 40 °, the optimized angle of the first included angle B be 110 °, 115 °, 120 ° or
135 °, the optimized angle of the second angle C is 135 °, 140 °, 145 ° or 155 °.
A wherein preferred preferred composite structure is：The angle of third angle D is preferably 35 °, the preferred angle of the first included angle B
Degree is 115 °, and the optimized angle of the second angle C is 145 °；Wherein preferably another composite structure is：The angle of third angle D is excellent
35 ° are selected as, the optimized angle of the first included angle B is 116 °, and the optimized angle of the second angle C is 154 °；Wherein further preferably another
Composite structure is：The angle of third angle D is preferably 30 °, and the optimized angle of the first included angle B is 110 °, and the second angle C's is preferred
Angle is 145 °.The combination of above structure both can guarantee the optimum structure group that crab tongs-type is reinforced in the composition crab claw bionics of ontology 4
It closes, also acts as the effect to the stress balance of bridge abutment correcting, crab tongs-type reinforcing ontology 4 can be completed and bear weight to tilting bridge pier
Supporting role, reasonably will be in the weight transmitting that undertaken to reinforcing body 6.
The present invention also provides a kind of construction technologies being arranged in the crab tongs-type deviation correcting device of bridge pier bottom comprising once
Step：
Step 1）Cofferdam will be set around bridge pier, and usage mining machinery will be trapped among in weir and clear up, will be under the pier stud 2 of bridge pier
Portion and pier 1 expose, and are first detected in the outside of pier 1, pre-buried to fix prefabricated reinforcing body after finding solid foundation
6, support slot 5 is set on reinforcing body 6, and the reinforcing body 6 of splicing structure is selected to be more than two, to more than two reinforcing bodies 6
Assembly is fixed；
Step 2）The fixed column 401 being fixed on backplate 402 is carried out in the blind hole being inserted on pier stud 2 201, fixed column 401
It is interference fit with blind hole 201, wherein can also be well on using the top rade 202 being arranged in 201 opening of blind hole
It is inserted into, is then again fixedly connected with sliding part 422 with the fixed part 423 of backplate 402 by screwing fixing bolt 424；
Step 3）The crab claw point 412 determined on the crab claw 417 is put into the locating slot 8 of inside, the control of hydraulic device 403 is reused
Piston rod 408 on oil cylinder 419 is stretched out or shrinks suitable position by device, while the crab claw point 412 on the dynamic crab claw 410 being put into
After fixing corresponding angles and positions in the locating slot 8 in outside, fixed pin shaft 413 is penetrated into the hole that crab chela portion 406 is equipped with
It is inside fixedly connected so that the dynamic crab claw 410 and 406 fixation of crab chela portion；
Step 4）The second valve 420 switch is opened, the lifting piston on the second lifting cylinder 416 and the first lifting cylinder 411 is made
415 stretch out, and positional deviation correction and correction are carried out to bridge pier, after bridge pier, which is remedied to, proceeds to suitable position, close the second valve
420；
Step 5）Usage mining machinery carries out excavation cleaning in the inclination side of pier 1 and pier stake 7, searches inclined raw because removing
After the Tilt factor or part to being mined carries out concreting, and the depth of concreting is greater than or equal to pier stud 2 most
Big width carries out curing step to the concrete poured simultaneously after concreting；Wherein preferred technical solution, the construction
Technique is in step 5）In three layers of cooling maintenance that the concrete that pours is carried out, including it is following step by step：
Step by step 1）The first insulating layer is first laid on the concrete that surface pours, spreading thickness range is on the first insulating layer
The granulometric range of the first trash ice layer of 10mm-15mm, the first trash ice layer is 5-8mm, and the second heat preservation is then laid on trash ice layer
Layer；Be arranged the first trash ice layer granulometric range be 5-8mm, the heat that the concrete that playing can absorb and pour in time releases,
Preventing the concrete poured, there is a phenomenon where expand with heat and contract with cold；
Step by step 2）Spreading thickness range is the second trash ice layer of 15mm-20mm, of the second trash ice layer on the second insulating layer
Grain ranging from 10-15mm, then third insulating layer is laid on the second trash ice layer, the second trash ice of setting granulometric range 10-15mm
Layer, is that the speed of the first trash ice melting layer in order to prevent is fast, continual cooling effect is provided for the first trash ice layer；
Step by step 3）Spreading thickness range is the third trash ice layer of 20mm-30mm, of third trash ice layer on third insulating layer
Grain ranging from 15-20mm, finally wraps up the 4th insulating layer on third trash ice layer, and it is 15- that outermost granulometric range, which is arranged,
The third trash ice layer of 20mm, the granularity of selection is maximum, is heated up caused by order to block the concrete that outer bound pair pours first
It influences, and for continual cooling effect can be provided for the first trash ice layer and the second trash ice layer, guarantees
The heat that the concrete poured releases is absorbed in time；
First trash ice layer, the second trash ice layer and third trash ice layer are due to the ladder that the thickness and granulometric range of setting are from top to bottom
Structure can ensure to improve the precision of the correction of bridge pier not there is a phenomenon where expanding with heat and contract with cold to the concrete poured.
Step 6）After the concrete poured completely solidification, the crab tongs-type deviation correcting device is removed.
Embodiment 2
As shown in figure 5, the present embodiment is further improved on the basis of embodiment 1, difference lies in：The present embodiment provides
The crab tongs-type deviation correcting device being arranged in bridge pier bottom, reinforcing body 6 is oval structure, and oval structure can adapt to more complicated outer
Portion's environment.
The preferred embodiments of the disclosure and embodiment are explained in detail above in conjunction with attached drawing, but it is of the invention
The above-described embodiment and examples are not limited to, within the knowledge of those skilled in the art, can also not taken off
It is made a variety of changes under the premise of from present inventive concept.
Claims (10)
1. a kind of crab tongs-type deviation correcting device being arranged in bridge pier bottom, which is characterized in that if the crab tongs-type deviation correcting device includes
The dry crab tongs-type being circular layout reinforces ontology (4), and one end that each crab tongs-type reinforces ontology (4) is connected to pier stud (2)
Outside, the other end that the crab tongs-type reinforces ontology (4) connect with reinforcing body (6), and the crab tongs-type reinforcing ontology (4) includes
With the fixed column (401) of blind hole (201) plugged and fixed on pier stud (2), the fixed column (401) is fixed in pier stud (2) outside
On the corresponding backplate of side shape (402), the backplate (402) is connected on fixed part (423), the fixed part (423) with
Sliding part (422) for adjusting horizontal direction position connects, and the sliding part (422) is equipped with the pedestal being obliquely installed upwards
(421), the pedestal (421) connect with the arc body (404) for being bent downwardly setting, the arc body (404) and crab chela portion
(406) it connecting, crab chela portion (406) includes the dynamic crab claw (410) connected by first rotating shaft (407) and determines the crab claw (417),
The dynamic crab claw (410) and the crab claw sharp (412) determined on the crab claw (417) are arranged in the locating slot (8) on reinforcing body (6), described
The hole that crab chela portion (406) is equipped with is connect by fixed pin shaft (413) with the dynamic crab claw (410)；It is set on the outside of the sliding part (422)
There is hydraulic device (403), the first valve (405) that the fuel feeding and unloading line of the hydraulic device (403) are equipped with is used for controlling
It makes on the interior piston rod (408) for carrying out back and forth movement of oil cylinder (419), the end of the piston rod (408) and the dynamic crab claw (410)
The second shaft (409) axis connection.
2. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the dynamic crab claw
(410) and the crab claw (417) are determined for inverted V-shape structure, the inside for determining the crab claw (417) is equipped with several crab teeth (414).
3. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the dynamic crab claw
(410) and the tip position determined in the crab claw on the crab claw (417) sharp (412) is respectively equipped with lifting piston (415), the lifting work
It fills in (415) and is carried out back and forth movement, the first lifting oil by the first lifting cylinder (411) and the second lifting cylinder (416) control
Cylinder (411) and the second lifting cylinder (416) and the fuel feeding and unloading line of hydraulic device (403) are equipped with hydraulic pressure bye-pass
(418), the second valve (420) that the hydraulic pressure bye-pass (418) is equipped with is used for controlling and is arranged in the dynamic crab claw (410) and determines the crab claw
(417) the second lifting cylinder (416) and the first lifting cylinder (411) of the crab claw sharp (412) on carry out elevating movement.
4. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the fixed part
(423) it is that connected structure, the connected structure are fixedly connected by fixing bolt (424) each other with sliding part (422).
5. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the reinforcing body
(6) it is round structure or oval structure.
6. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the reinforcing body
(6) it is equipped with support slot (5), locating slot (8) setting is in support slot (5).
7. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 1, which is characterized in that the sliding part
(422) angular range that third angle (D) is equipped with pedestal (421) is 30 °~40 °, and the arc body (404) is equipped with first
The angular range of angle (B) is 110 °~135 °, crab chela portion (406) and determines the second angle being equipped between the crab claw (417)
(C) angular range is 135 °~155 °.
8. the crab tongs-type deviation correcting device in bridge pier bottom is arranged according to claim 7, which is characterized in that the third angle
(D) angle is 30 °, 35 ° or 40 °, and the angle of first angle (B) is 110 °, 115 °, 120 ° or 135 °, described second
The angle of angle (C) is 135 °, 140 °, 145 ° or 155 °.
9. according to any construction technologies being arranged in the crab tongs-type deviation correcting device of bridge pier bottom of claim 1-8, feature
It is, the construction technology includes：
Cofferdam, the cleaning that usage mining machinery will carry out in cofferdam, by the pier stud (2) of bridge pier will be arranged in step 1) around bridge pier
Lower part and pier (1) expose, and are detected on the outside of pier (1), find after solid foundation it is pre-buried fix it is prefabricated plus
Solid (6), it is two or more that reinforcing body (6), which is equipped with support slot (5) and the reinforcing body (6) of splicing structure, will be more than two
Assembly is fixed in reinforcing body (6)；
The fixed column (401) being fixed on backplate (402) is carried out the blind hole that interference fit is inserted on pier stud (2) by step 2)
(201) it in, is fixed using the top rade (202) being arranged in blind hole (201) opening insertion that is well on, then by sliding part
(422) it is fixedly connected with the fixed part (423) of backplate (402) by screwing fixing bolt (424)；
The crab claw sharp (412) determined on the crab claw (417) are put into inside locating slot (8) by step 3), reuse hydraulic device
(403) piston rod (408) on oil cylinder (419) is stretched out or shrinks suitable position by control device, while by the dynamic crab claw (410)
On the crab claw sharp (412) be put into and fix corresponding angles and positions in the locating slot (8) in outside after, by fixed pin shaft (413)
It penetrates in the hole that crab chela portion (406) is equipped with and is fixedly connected so that the dynamic crab claw (410) and crab chela portion (406) fixation；
Step 4) opens the switch of the second valve (420), makes on the second lifting cylinder (416) and the first lifting cylinder (411)
Lifting piston (415) stretches out, and positional deviation correction and correction are carried out to bridge pier, after bridge pier, which is remedied to, proceeds to suitable position, closes
Close the second valve (420)；
Step 5) usage mining machinery carries out excavation cleaning in the side of pier (1) and pier stake (7) run-off the straight, searches inclined raw
Cause carries out concreting to the part being mined again after removing Tilt factor, and the depth of concreting is greater than or equal to pier
The maximum width of column (2) carries out curing step to the concrete poured simultaneously after concreting；
Step 6) removes the crab tongs-type deviation correcting device after the concrete poured completely solidification.
10. the construction technology in the crab tongs-type deviation correcting device of bridge pier bottom is arranged according to claim 9, which is characterized in that
Three layers of cooling maintenance that the construction technology carries out the concrete poured in step 5), three layers of cooling curing step packet
Include it is following step by step：
The first insulating layer first 1) is laid on the concrete that surface pours step by step, spreading thickness range is on the first insulating layer
The granulometric range of the first trash ice layer of 10mm-15mm, the first trash ice layer is 5-8mm, and the second heat preservation is then laid on trash ice layer
Layer；
The second trash ice layer that 2) spreading thickness range is 15mm-20mm on the second insulating layer step by step, of the second trash ice layer
Grain ranging from 10-15mm, then third insulating layer is laid on the second trash ice layer；
The third trash ice layer that 3) spreading thickness range is 20mm-30mm on third insulating layer step by step, of third trash ice layer
Grain ranging from 15-20mm, finally wraps up the 4th insulating layer on third trash ice layer.
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| CN201810881825.7A CN108708296B (en) | 2018-08-06 | 2018-08-06 | Crab claw type deviation rectifying device arranged at bottom of bridge pier and construction process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627065A (en) * | 2020-12-31 | 2021-04-09 | 陕西铁路工程职业技术学院 | Bridge pier stud resetting means that rectifies |
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|---|---|---|---|---|
| CN202416195U (en) * | 2011-12-31 | 2012-09-05 | 江苏华通工程检测有限公司 | Pier deviation correcting and reinforcing system |
| KR20120137749A (en) * | 2011-06-13 | 2012-12-24 | 에프알앤디건설(주) | Lifting device for girder |
| CN105002834A (en) * | 2015-07-06 | 2015-10-28 | 上海同罡建筑工程有限公司 | Deviation rectifying and strengthening method for piers |
| CN205134202U (en) * | 2015-11-26 | 2016-04-06 | 周汉林 | Bridge high strength support column |
| CN206052577U (en) * | 2016-08-31 | 2017-03-29 | 蒋世琦 | A kind of bridge local deviation correcting device |
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2018
- 2018-08-06 CN CN201810881825.7A patent/CN108708296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120137749A (en) * | 2011-06-13 | 2012-12-24 | 에프알앤디건설(주) | Lifting device for girder |
| CN202416195U (en) * | 2011-12-31 | 2012-09-05 | 江苏华通工程检测有限公司 | Pier deviation correcting and reinforcing system |
| CN105002834A (en) * | 2015-07-06 | 2015-10-28 | 上海同罡建筑工程有限公司 | Deviation rectifying and strengthening method for piers |
| CN205134202U (en) * | 2015-11-26 | 2016-04-06 | 周汉林 | Bridge high strength support column |
| CN206052577U (en) * | 2016-08-31 | 2017-03-29 | 蒋世琦 | A kind of bridge local deviation correcting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112627065A (en) * | 2020-12-31 | 2021-04-09 | 陕西铁路工程职业技术学院 | Bridge pier stud resetting means that rectifies |
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| CN108708296B (en) | 2020-12-15 |
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