CN110117936A - Rotary body device and rotation swivel construction method for bridge pier - Google Patents
Rotary body device and rotation swivel construction method for bridge pier Download PDFInfo
- Publication number
- CN110117936A CN110117936A CN201910498649.3A CN201910498649A CN110117936A CN 110117936 A CN110117936 A CN 110117936A CN 201910498649 A CN201910498649 A CN 201910498649A CN 110117936 A CN110117936 A CN 110117936A
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- Prior art keywords
- pier
- cushion cap
- bridge
- swivel
- bridge pier
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000003351 stiffener Substances 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 66
- 238000009434 installation Methods 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 230000015271 coagulation Effects 0.000 claims description 9
- 238000005345 coagulation Methods 0.000 claims description 9
- 239000011376 self-consolidating concrete Substances 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 239000004567 concrete Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of rotary body device for bridge pier, including rotating part, counter-force part and overturn-preventing part；The rotating part includes swivel jack, swivel steel strand wires, turntable lower steel plate, tetrafluoro plate, turntable upper steel plate and rotation axis；Counter-force part includes counter-force pier；Overturn-preventing part includes overturn-preventing anchor ear and cement track；The lower end of counter-force pier fixes, has the one of ribbed stiffener on the ground facing towards bridge pier direction, turns jack and is mounted on counter-force pier and concentrically pours on the ground away from bridge pier direction, cement track and bridge pier；Overturn-preventing anchor ear is square internally and round externally, binds round around pier shaft, is placed on cement track, swivel steel strands wound is on overturn-preventing anchor ear；Turntable lower steel plate, tetrafluoro plate and the turntable upper steel plate of rotating part are successively laid on from top to bottom in the cylinder shape groove of cushion cap；The apparatus structure is simple, install convenient, and being used for implementing bridge pier rotator construction has that overall cost is low, short time limit, and smaller, the advantages that saving construction space is influenced on structure stress.
Description
Technical field
The present invention relates to equipment for bridge construction and its construction method, especially a kind of rotary body device for bridge pier and
Its construction method for being used for bridge pier swivel.
Background technique
There are road in the portion two sides that construct a bridge, and day and night road traffic is very crowded, it is necessary to ensure two sides
In the case where road normal use, bridge construction is carried out, this just brings problem to construction；In order to cope with this challenge, need
A kind of special pier construction method uses bridge pier rotation swivel construction method；Dedicated bridge pier rotator construction equipment is developed, normally
The pile foundation and cushion cap of construction bridge pier, but lifting, the connection of the pier shaft and bent cap of bridge pier are along bridge Xiang Fangxiang, last bridge pier swivel
Equipment is turned between cushion cap and pier shaft, and pier shaft and bent cap above are gone to design angle, is completed rotator construction and is reached
Design requirement.
For this purpose, respectively design and construction unit proposes various bridge pier rotator construction equipment and rotation swivel construction method, to adapt to not
Same type bridge, the needs constructed in different construction environments, also, have their own characteristics but also have shortcoming；Wherein, it authorizes
Notification number is that the utility application of CN203546620U discloses a kind of bridge pier bottom rotor system, but the patent is upper
Lower rotary table is that concrete is poured, and bulky, construction workload is big；Moreover, because rotary body device cut off cushion cap with
The connection of bridge pier can not only reach the design strength of original structure by the casting concrete in later period；Secondly work as bridge pier pier shaft
When bent cap that is higher or also assembling above, since it has very big weight, need that anti-dumping is installed around bridge pier pier shaft
The resistance to capsizing that anchor ear increases it is covered, but the rotary body device does not have.
Summary of the invention
It is an object of the invention to: a kind of rotary body device for bridge pier is provided, this is used for the swivel of bridge pier
Apparatus structure is simple, install convenient, overall cost are low, short time limit, structure stress is influenced it is smaller, not by bridge pier direction across bridge space
It influences, saves construction space, invention also provides the rotary body devices for bridge pier for bridge pier swivel
Construction method.
The technical solution to solve the above problems is: a kind of rotary body device for bridge pier, the bridge pier include
Pier shaft and bent cap, the rotary body device for bridge pier include rotating part, counter-force part and overturn-preventing part；Its feature
Be: the rotary body device for being used for bridge pier is mounted between the pier shaft of bridge pier and the cushion cap of bridge substructure；
4~5 meters of diameter, deep 1.9~2.2 meters of cylinder shape groove are reserved among the cushion cap, groove center, which is reserved with, to be turned
Moving axis installs duct I, and there are vertical prestressing spiral ducts I for cylinder shape groove surrounding, in vertical prestressing spiral
I lower end of duct is embedded with the sleeve for fixing vertical prestressing spiral；
The rotating part include swivel jack, swivel with steel strand wires, turntable lower steel plate, tetrafluoro plate, turntable upper steel plate and
Rotation axis；
The counter-force part includes counter-force pier；
The overturn-preventing part includes overturn-preventing anchor ear and the cement track that rotates for overturn-preventing anchor ear along bridge pier；
The lower end of the counter-force pier fixes, has the one of ribbed stiffener on the ground facing towards bridge pier direction, and the swivel is very heavy
Top is mounted on counter-force pier and concentrically pours on the ground away from bridge pier direction, the cement track and bridge pier；
The overturn-preventing anchor ear is square internally and round externally, binds round around pier shaft, is placed on cement track, the swivel is twined with steel strand wires
It is wound on overturn-preventing anchor ear；
Turntable lower steel plate, tetrafluoro plate and the turntable upper steel plate of rotating part for bridge pier swivel are successively laid on hold from top to bottom
In the cylinder shape groove of platform, the rotation axis lower end is mounted on the rotation shaft mounting hole road I that the cylinder shape groove of cushion cap is reserved
Interior, first segment pier shaft is mounted on the upper end of rotation axis.
Its further technical solution is: transverse direction is reserved with for installing connection cushion cap and first when the cushion cap is cast-in-place
The lateral regular reinforcement duct I for saving the lateral regular reinforcement of pier shaft is also reserved with for installing connection cushion cap and first segment pier shaft
Longitudinal regular reinforcement longitudinal regular reinforcement duct I.
When the first segment pier shaft is cast-in-place or prefabricated, it is reserved with the lateral ordinary steel of connection cushion cap and first segment pier shaft
The lateral regular reinforcement duct II of muscle is reserved with longitudinal regular reinforcement of longitudinal regular reinforcement of connection cushion cap and first segment pier shaft
Duct II is reserved with the vertical prestressing spiral duct of the vertical prestressing spiral of connection cushion cap and first segment pier shaft
II, while first segment pier shaft lower end center is reserved with the duct II of installation rotation axis.
20 centimeters of annular grooves are reserved between the cushion cap and first segment pier shaft, in bridge pier swivel in place rear annular groove
High-strength dedicated self-compacting concrete is poured.
The further technical solution of the rotary body device for bridge pier is: side is outer in the overturn-preventing anchor ear
Circle binds round around pier shaft, is placed with rubber pad between overturn-preventing anchor ear and the pier shaft of contact；Overturn-preventing anchor ear is placed in the water of annular
On mud track, swivel steel strands wound is on overturn-preventing anchor ear.
It is relevant another solution is that a kind of rotation swivel construction method of bridge pier, it is above-mentioned using the present invention
Implement the rotator construction of bridge pier for the rotary body device of bridge pier；That is: it using swivel jack tension, is used by swivel
The rotation that steel strand wires make overturn-preventing anchor ear drive bridge pier that low-angle occurs；Swivel jack tension, backhaul are constantly repeated, realizes bridge
Pier swivel；Or realize that bridge pier turns using continuous swivel jack, construction procedure is as follows:
A, the pile foundation and bearing platform construction of bridge substructure:
The pile foundation production of A1, bridge substructure:
The construction of bridge pile foundation is carried out by former design scheme；
A2, casting cushion cap:
When cushion cap pours, it is recessed that 4~5 meters of diameter, deep 1.9~2.2 meters of cylinder are reserved among the cushion cap end face center
Slot remains for the lateral regular reinforcement hole of the lateral regular reinforcement of installation connection cushion cap and first segment pier shaft in cushion cap transverse direction in advance
Road I remains for longitudinal regular reinforcement of longitudinal regular reinforcement of installation connection cushion cap and first segment pier shaft in cushion cap longitudinal direction in advance
Duct I, the reserved rotation shaft mounting hole road I of groove center, is provided with vertical prestressing spiral duct along cylinder shape groove surrounding
I, and it is pre-buried for fixing the sleeve I of vertical prestressing spiral in I lower end of vertical prestressing spiral duct；
B, rotating part of the installation for bridge pier swivel on cushion cap:
B1, installation rotation axis:
In the reserved rotation shaft mounting hole road I of the cylinder shape groove that rotation axis lower end is mounted on cushion cap；
B2, in cylinder shape groove, turntable lower steel plate, tetrafluoro plate and turntable upper steel plate are successively installed from top to bottom；
C, production, install bridge pier pier shaft:
C1: the pier shaft of bridge pier is made:
First segment pier shaft lower part is 4 meters of diameter high 2 meters of cylindrical bodies, and the part of prominent cushion cap top surface is identical as former pier shaft construction,
The lateral regular reinforcement duct II for remaining for the lateral regular reinforcement of installation connection cushion cap and first segment pier shaft in advance, remains for pacifying in advance
Load connects longitudinal regular reinforcement duct II of longitudinal regular reinforcement of cushion cap and first segment pier shaft, reserves connection cushion cap and first segment
The vertical prestressing spiral duct II of the vertical prestressing spiral of pier shaft, while first segment pier shaft lower end center is reserved
For installing the rotation shaft mounting hole road II of rotation axis；
C2: lifting first segment pier shaft:
First segment pier shaft is corresponded to after rotation axis is lifted on cushion cap, in the vertical duct that first segment pier shaft is reserved, insertion
Vertical prestressing spiral is connect with embedded sleeve barrel, is served and is fixed temporarily；
C3: live formwork erection lifts after pouring pier shaft, or the prefabricated pier shaft of segmentation；
D, fabrication and installation overturn-preventing part:
D1, production coagulation dirt chute:
The coagulation dirt chute of one of annular, the rotation for antidumping bracket are poured on the ground；
D2, installation overturn-preventing anchor ear, are placed on coagulation dirt chute；
E, bent cap is made:
Live formwork erection pours bent cap, is segmented prefabricated bent cap rear abutment both sides while lifting；
F, counter-force pier and swivel jack are installed:
F1, in cushion cap marginal position along bridge to two sides, pour swivel jack counter-force pier by drawing, installation swivel is very heavy
Top；
F2, swivel steel strand anchoring disk is set in overturn-preventing anchor ear；
F3, swivel steel strand wires, every very heavy very useful 7 diameter are penetrated in swivel jack and in steel strand anchoring disk respectively
The steel strand wires of 15.2 intensity 1860；
G, hydraulic power unit and console are connected；
H, rotator construction:
After the completion of H1, above step, vertical prestressing spiral is removed, carries out rotator construction, while measuring monitoring
Work；
H2, swivel in place after, first segment pier shaft reserve vertical reinforcement duct II in, insertion vertical prestressing spiral with
Pre-buried sleeve I connects in cushion cap, and stretch-draw prestressing force；
H3, high-strength dedicated mortar is perfused in the vertical reinforcement duct II that first segment pier shaft is reserved, in first segment pier shaft and cushion cap
Gap pours high-strength dedicated self-compacting concrete；
H3, regular reinforcement, grouting are inserted into the lateral regular reinforcement duct I that cushion cap is reserved and longitudinal regular reinforcement duct I；
I, Bridge Pier Construction is completed, and is removed and is turned each auxiliary equipment, is transferred to next Bridge Pier Construction.
Due to taking above structure, " rotary body device and rotation swivel construction method for bridge pier " of the present invention have with
It is lower the utility model has the advantages that
One, construction space is not saved, the influence traffic of bottom line by bridge pier direction across bridge spacial influence:
Using the rotary body device for bridge pier of the present invention, by the pile foundation and cushion cap of normal construction bridge pier, but along bridge to
The pier shaft and bent cap for carrying out bridge pier are processed, and last bridge pier swivel equipment is turned between cushion cap and pier shaft, by pier shaft with it is upper
The bent cap in face goes to design angle, completes the erection of bridge pier, therefore is not saved construction space by bridge pier direction across bridge spacial influence,
The influence traffic of energy bottom line.
Two, structure stress is influenced smaller:
The rotary body device for bridge pier of the present invention is reserved with vertical/longitudinal/lateral on cushion cap and first segment pier shaft
Reinforcing bar duct penetrates deformed bar/regular reinforcement, last duct grouting after turning in place；Because having between cushion cap and bridge pier
The connection of horizontal/longitudinal regular reinforcement and vertical prestressing spiral, can make structure reach original design strength, to structure by
Power influences smaller.
Three, the resistance to capsizing of whole system is increased.
The rotary body device for bridge pier of the present invention arranges overturn-preventing anchor ear around bridge pier pier shaft, both can guarantee and turns
Stabilization when body, and stress point is provided to swivel steel strand wires, the rotator construction of the bridge pier additional bent cap towering for bridge can
Increase the resistance to capsizing of whole system.
Four, rotary body device structure it is simple, it is easy for construction, construction cost can be substantially reduced:
Implement the rotator construction of bridge pier for the rotary body device of bridge pier using the present invention, bridge pier between cushion cap not
It needs to be arranged in advance complicated rotating-table apparatus and advantageously reduces cost only with simple shaft, steel plate and tetrafluoro plate, fit
It closes whole route and uses bridge pier rotator construction on a large scale.
Rotary body device and rotation swivel construction method to the present invention for bridge pier with reference to the accompanying drawings and examples
Technical characteristic is described further.
Detailed description of the invention
Fig. 1 be the present invention for bridge pier rotary body device structure and install and use status diagram；
Fig. 2 is shaft and turntable installation condition schematic diagram of the invention；
Fig. 3 is bridge substructure main member schematic diagram；
Fig. 4~Fig. 6 is the structural schematic diagram of cushion cap and pile foundation:
Fig. 4 perspective view, Fig. 5 are the top views of Fig. 4, and Fig. 6 is the B-B sectional view of Fig. 5；
Fig. 7-1~Fig. 7-2 is the structural schematic diagram of first segment pier shaft:
Fig. 7-1 is outline structural diagram, and Fig. 7-2 is internal structure schematic diagram；
Fig. 8 is the structural schematic diagram of counter-force pier；
Fig. 9 is the structural schematic diagram of overturn-preventing anchor ear.
In figure:
1- bridge substructure, 11- pile foundation, 12- cushion cap, the longitudinal direction 13- regular reinforcement, 14- transverse direction regular reinforcement, 15- are high-strength specially
With self-compacting concrete, 16- vertical prestressing spiral, 17- first segment pier shaft, 18- the n-th section pier shaft (n > 1), 19- bent cap；
120- cylinder shape groove, 121- transverse direction regular reinforcement duct I, the longitudinal direction 122- regular reinforcement duct I, 123- rotation axis duct
I, 124- vertical prestressing spiral duct I, 125- are used to fix the sleeve of vertical prestressing spiral；
171- transverse direction regular reinforcement duct II, the longitudinal direction 172- regular reinforcement duct II, 173- install rotation axis duct II, and 174- is perpendicular
To prestressing force spiral duct II；
The ground 2-；3- counter-force pier；4- turns jack；
5- cement track；6- overturn-preventing anchor ear；7- swivel uses steel strand wires；
8a- turntable lower steel plate；9- tetrafluoro plate；8b- turntable upper steel plate；10- rotation axis.
Specific embodiment
Embodiment one:
A kind of rotary body device for bridge pier:
As shown in Figure 1, the rotary body device for bridge pier is that one kind is mounted on bridge pier first segment pier shaft bottom and bridge
Rotary body device between the cushion cap of substructure；
The bridge substructure includes pile foundation, cushion cap, pier shaft and bent cap, and pier shaft and bent cap are referred to as bridge pier, described to be used for bridge
The rotary body device of bridge pier includes rotating part, counter-force part and overturn-preventing part；Rotary body device for bridge pier is mounted on
Between the pier shaft of bridge pier and the cushion cap of bridge substructure；
The cylinder shape groove 120 of about 2 meters of 4.4 meters of depths of diameter is reserved among the cushion cap 12, groove center is reserved with rotation
Shaft mounting hole road I 123, there are vertical prestressing spiral ducts I 124 for 120 surrounding of cylinder shape groove, while being embedded with and being used for
The sleeve 125(of fixed vertical prestressing spiral-Fig. 6 referring to fig. 4)；
The rotating part includes swivel jack 4, turns with steel on steel strand wires 7, turntable lower steel plate 8a, tetrafluoro plate 9, turntable
Plate 8b and rotation axis 10；
The counter-force part includes counter-force pier 3；
The overturn-preventing part includes overturn-preventing anchor ear 6 and the cement track 5 that rotates for overturn-preventing anchor ear along bridge pier；
The counter-force pier 3 is fixed on the ground of bridge pier two sides by directly pouring mode, has the one of ribbed stiffener to face
To bridge pier direction, the swivel jack 4 is mounted on counter-force pier away from bridge pier direction, and the cement track 5 and bridge pier are same
Heart pours on the ground, for overturn-preventing anchor ear along the rotation of bridge pier；
The overturn-preventing anchor ear 6 is square internally and round externally, binds round around pier shaft, is placed on cement track 5, the swivel steel strand wires
7 are wrapped on overturn-preventing anchor ear, using swivel 4 tensioning of jack, the rotation for making overturn-preventing anchor ear drive bridge pier that low-angle occurs；
Turntable lower steel plate 8a, the tetrafluoro plate 9 and turntable upper steel plate 8b of rotating part for bridge pier swivel are successively spread from top to bottom
It is located in the cylinder shape groove 120 of cushion cap 12, what the cylinder shape groove 120 that 10 lower end of rotation axis is mounted on cushion cap was reserved
It rotates in shaft mounting hole road I 123, first segment pier shaft 17 is mounted on the upper end (referring to fig. 2) of rotation axis 10.
As shown in figure 3, the bridge substructure includes pile foundation 11, cushion cap 12, first segment pier shaft 17, the second section to
N saves pier shaft 18 and bent cap 19, in the mounted state, by vertical between the cushion cap 12 and first segment pier shaft 17 of bridge substructure 1
It is connected to regular reinforcement 13, lateral regular reinforcement 14, and is reinforced by vertical prestressing spiral 16；N-th section (n > 1) pier
Body 18 is fixed on first segment pier shaft 17 by prefabricated or cast-in-site mode, and bent cap 19 is placed in above top layer's pier shaft.
Transverse direction is reserved with general for installing connection cushion cap 12 and the transverse direction of first segment pier shaft 17 when the cushion cap is cast-in-place
The lateral regular reinforcement duct I 121 of logical reinforcing bar, is also reserved with longitudinal ordinary steel for installing connection cushion cap and first segment pier shaft
Longitudinal regular reinforcement duct I 122 of muscle is reserved with vertical prestressing spiral duct I 124 along 120 surrounding of cylinder shape groove,
The ginseng of the sleeve 125(for fixing vertical prestressing spiral is embedded in I 124 lower end of vertical prestressing spiral duct
See Fig. 4 figure~Fig. 6).
When the first segment pier shaft 17 is cast-in-place or prefabricated, it is reserved with the transverse direction of connection cushion cap 12 and first segment pier shaft 17
The lateral regular reinforcement duct II 171 of regular reinforcement is reserved with the vertical of longitudinal regular reinforcement of connection cushion cap and first segment pier shaft
To regular reinforcement duct II 172, it is reserved with the vertical of connection cushion cap and the vertical prestressing spiral of first segment pier shaft and pre- answers
Power spiral duct II 174, while first segment pier shaft lower end center is reserved with II 173(of duct of installation rotation axis referring to figure
7-1, Fig. 7-2)
20 centimeters of annular grooves are reserved between the cushion cap and first segment pier shaft, are poured in bridge pier swivel in place rear annular groove
There is high-strength dedicated self-compacting concrete 15.
The overturn-preventing anchor ear 6 is square internally and round externally, binds round around pier shaft 17, puts between overturn-preventing anchor ear and the pier shaft of contact
Set rubber pad；Overturn-preventing anchor ear is placed on the cement track 5 of annular, and swivel steel strand wires 7 are wrapped on overturn-preventing anchor ear 6.
Embodiment two
A kind of rotation swivel construction method of bridge pier, it is to utilize the swivel that bridge pier is used for described in the embodiment of the present invention one
Device implements the construction method of bridge pier swivel；
That is: using conventional construction method production bridge substructure pile foundation and cushion cap, but the lifting of the pier shaft and bent cap of bridge pier,
Connection is finally turned between cushion cap and pier shaft along bridge Xiang Fangxiang, using swivel jack tension, is used by swivel
The rotation that steel strand wires make overturn-preventing anchor ear drive bridge pier that low-angle occurs；Swivel jack tension, backhaul are constantly repeated, realizes bridge
Pier shaft and bent cap above are gone to design angle by pier swivel；Also continuous swivel jack can be used and realize bridge pier swivel,
Steps are as follows for Specific construction:
A, the pile foundation and bearing platform construction of bridge substructure
The pile foundation production of A1, bridge substructure:
The construction of bridge pile foundation is carried out by former design scheme；
A2, casting cushion cap 12:
When cushion cap pours, the cylinder shape groove 120 of about 2 meters of 4.4 meters of depths of diameter is reserved among 12 end face center of cushion cap,
The reserved rotation shaft mounting hole road I 123 of groove center, is provided with vertical prestressing spiral duct I along 120 surrounding of cylinder shape groove
124, and it is pre-buried for fixing the sleeve I of vertical prestressing spiral in I 124 lower ends of vertical prestressing spiral duct
125；
Remain for the laterally common of the lateral regular reinforcement of installation connection cushion cap 12 and first segment pier shaft 17 in advance in cushion cap transverse direction
Reinforcing bar duct I 121 remains for the longitudinal direction of longitudinal regular reinforcement of installation connection cushion cap and first segment pier shaft in cushion cap longitudinal direction in advance
Regular reinforcement duct I 122；
B, rotating part of the installation for bridge pier swivel on cushion cap:
B1, installation rotation axis:
In the reserved rotation shaft mounting hole road 124 of the cylinder shape groove 123 that 10 lower end of rotation axis is mounted on cushion cap；
B2, in cylinder shape groove 123, turntable lower steel plate 8a, tetrafluoro plate 9 and turntable upper steel plate 8b are successively installed from top to bottom；
C, production, install bridge pier pier shaft:
C1: the pier shaft of bridge pier is made
17 lower part of first segment pier shaft is 4 meters of diameter high 2 meters of cylindrical bodies, and part and the former pier shaft of prominent 12 top surface of cushion cap construct phase
Together, remain for the lateral regular reinforcement duct II 171 of the lateral regular reinforcement of installation connection cushion cap 12 and first segment pier shaft 17 in advance,
The longitudinal regular reinforcement duct II 172 for remaining for longitudinal regular reinforcement of installation connection cushion cap and first segment pier shaft in advance, is reserved with
The vertical prestressing spiral duct II 174 of the vertical prestressing spiral of connection cushion cap and first segment pier shaft, while the
One section pier shaft lower end center remains for installing in advance the rotation shaft mounting hole road II 173 of rotation axis；
C2: lifting first segment pier shaft:
First segment pier shaft is corresponded to after rotation axis is lifted on cushion cap, in the vertical duct that first segment pier shaft is reserved, insertion
Vertical prestressing spiral is connect with embedded sleeve barrel, is served and is fixed temporarily；
C3: live formwork erection lifts after pouring pier shaft, or the prefabricated pier shaft of segmentation；
D, fabrication and installation overturn-preventing part:
D1, production coagulation dirt chute:
The coagulation dirt chute of one of annular, the rotation for antidumping bracket are poured on the ground；
D2, installation overturn-preventing anchor ear, are placed on coagulation dirt chute；
E, bent cap is made:
Live formwork erection pours bent cap, is segmented prefabricated bent cap rear abutment both sides while lifting；
F, counter-force pier and swivel jack are installed:
F1, in cushion cap marginal position along bridge to two sides, pour swivel jack counter-force pier by drawing, installation swivel is very heavy
Top 4；
F2, swivel steel strand anchoring disk is set in overturn-preventing anchor ear 6；
F3, swivel steel strand wires are penetrated in swivel jack 4 and in steel strand anchoring disk respectively, every very heavy very useful 7 straight
The steel strand wires of 15.2 intensity 1860 of diameter；
G, hydraulic power unit and console are connected；
H, rotator construction:
After the completion of H1, above step, vertical prestressing spiral is removed, carries out rotator construction, while measuring monitoring
Work；
H2, after turning in place, in the vertical reinforcement duct II 174 that first segment pier shaft 17 is reserved, it is inserted into vertical prestressing screw thread
Reinforcing bar 16 is connect with pre-buried sleeve 125, and stretch-draw prestressing force；
H3, high-strength dedicated mortar is perfused in the vertical reinforcement duct II 174 that first segment pier shaft 17 is reserved, in first segment pier shaft 17
High-strength dedicated self-compacting concrete 15 is poured with 12 gap of cushion cap；
H3, be inserted into the lateral regular reinforcement duct I 121 that cushion cap is reserved and longitudinal regular reinforcement duct I 122 regular reinforcement,
Grouting；
I, Bridge Pier Construction is completed, and is removed and is turned each auxiliary equipment, is transferred to next Bridge Pier Construction.
Above-described embodiment is only one embodiment of the present invention, as a kind of transformation of various embodiments of the present invention, is held
When platform pours, the diameter and depth for the cylinder shape groove 120 reserved among 12 end face center of cushion cap are according to bridge
Depending on the pier shaft size of pier；
The pier shaft and bent cap for the bridge pier that the tonnage and swivel for turning jack 4 are also turned as needed with the specification of steel strand wires 7
Weight depending on.
Claims (6)
1. a kind of rotary body device for bridge pier, the bridge pier includes pier shaft and bent cap, described to be used for bridge pier
Rotary body device include rotating part, counter-force part and overturn-preventing part；It is characterized by: this is used for the swivel dress of bridge pier
Between the cushion cap for setting the pier shaft and bridge substructure that are mounted on bridge pier；
4~5 meters of diameter, deep 1.9~2.2 meters of cylinder shape groove (120), groove center are reserved among the cushion cap (12)
It is reserved with rotation shaft mounting hole road I (123), there are vertical prestressing spiral ducts I for cylinder shape groove (120) surrounding
(124), the set for fixing vertical prestressing spiral is embedded in I (124) lower end of vertical prestressing spiral duct
Cylinder (125)；
The rotating part include swivel jack (4), swivel with steel strand wires (7), turntable lower steel plate (8a), tetrafluoro plate (9),
Turntable upper steel plate (8b) and rotation axis (10)；
The counter-force part includes counter-force pier (3)；
The overturn-preventing part includes overturn-preventing anchor ear (6) and the cement track (5) that rotates for overturn-preventing anchor ear along bridge pier；
The lower end of the counter-force pier (3) fixes, has the one of ribbed stiffener on the ground facing towards bridge pier direction, the swivel thousand
Jin top (4) is mounted on counter-force pier and concentrically pours on the ground away from bridge pier direction, the cement track (5) and bridge pier；
The overturn-preventing anchor ear (6) is square internally and round externally, binds round around pier shaft, is placed on cement track (5), the swivel steel
Twisted wire (7) is wrapped on overturn-preventing anchor ear；
The turntable lower steel plate (8a) of rotating part, tetrafluoro plate (9) and turntable upper steel plate (8b) for bridge pier swivel are from top to bottom
It is successively laid in the cylinder shape groove (120) of cushion cap (12), described rotation axis (10) lower end is mounted on the cylinder of cushion cap
In the reserved rotation shaft mounting hole road I (123) of groove (120), first segment pier shaft (17) is mounted on the upper end of rotation axis (10).
2. the rotary body device according to claim 1 for bridge pier, it is characterised in that: horizontal when the cushion cap is cast-in-place
Direction is reserved with the lateral regular reinforcement hole of the lateral regular reinforcement for installing connection cushion cap (12) and first segment pier shaft (17)
Road I (121) is also reserved with longitudinal regular reinforcement duct of longitudinal regular reinforcement for installing connection cushion cap and first segment pier shaft
I (122).
3. the rotary body device according to claim 1 for bridge pier, it is characterised in that: the first segment pier shaft
(17) when cast-in-place or prefabricated, it is reserved with the laterally common of the lateral regular reinforcement of connection cushion cap (12) and first segment pier shaft (17)
Reinforcing bar duct II (171) is reserved with longitudinal regular reinforcement duct II of longitudinal regular reinforcement of connection cushion cap and first segment pier shaft
(172), it is reserved with the vertical prestressing spiral duct of the vertical prestressing spiral of connection cushion cap and first segment pier shaft
II (174), while first segment pier shaft lower end center is reserved with the duct II (173) of installation rotation axis.
4. the rotary body device according to claim 1 for bridge pier, it is characterised in that: the cushion cap (12) and the
It is reserved with 20 centimeters of annular grooves (120) between one section pier shaft (17), has poured height in bridge pier swivel in place rear annular groove (120)
Strong dedicated self-compacting concrete (15).
5. the rotary body device according to claim 1 for bridge pier, it is characterised in that: the overturn-preventing anchor ear
(6) square internally and round externally, it binds round around pier shaft (17), is placed with rubber pad between overturn-preventing anchor ear (6) and the pier shaft contacted；Overturn-preventing
Anchor ear (6) is placed on the cement track (5) of annular, and swivel is wrapped on overturn-preventing anchor ear (6) with steel strand wires (7).
6. a kind of rotation swivel construction method of bridge pier, it is characterised in that: it be utilize it is described in claim 1 for bridge bridge
The rotary body device of pier implements the rotator construction of bridge pier；That is: using swivel jack tension, make to prevent by swivel steel strand wires
The anchor ear that topples drives the rotation of bridge pier generation low-angle；Swivel jack tension, backhaul are constantly repeated, realizes bridge pier swivel；Or
It is to realize that bridge pier turns using continuous swivel jack, construction procedure is as follows:
A, the pile foundation and bearing platform construction of bridge substructure:
The pile foundation production of A1, bridge substructure:
The construction of bridge pile foundation is carried out by former design scheme；
A2, casting cushion cap (12):
When cushion cap pours, 4~5 meters of diameter, deep 1.9~2.2 meters of cylinder are reserved among described cushion cap (12) end face center
Connected in star (120) remains for the lateral ordinary steel of installation connection cushion cap (12) and first segment pier shaft (17) in cushion cap transverse direction in advance
The lateral regular reinforcement duct I (121) of muscle remains for the longitudinal direction of installation connection cushion cap and first segment pier shaft in cushion cap longitudinal direction in advance
Longitudinal regular reinforcement duct I (122) of regular reinforcement, reserved rotation shaft mounting hole road I (123) of groove center, along cylindrical recessed
Slot (120) surrounding is provided with vertical prestressing spiral duct I (124), and in vertical prestressing spiral duct I (124)
Lower end is pre-buried for fixing the sleeve (125) of vertical prestressing spiral；
B, rotating part of the installation for bridge pier swivel on cushion cap:
B1, installation rotation axis:
In the reserved rotation shaft mounting hole road I (123) of the cylinder shape groove (120) that rotation axis (10) lower end is mounted on cushion cap；
B2, in the cylinder shape groove (120), turntable lower steel plate (8a) is successively installed from top to bottom, steel on tetrafluoro plate (9) and turntable
Plate (8b)；
C, production, install bridge pier pier shaft:
C1: the pier shaft of bridge pier is made:
First segment pier shaft (17) lower part is 4 meters of diameter high 2 meters of cylindrical bodies, the part of prominent cushion cap (12) top surface and former pier shaft structure
Make it is identical, remain in advance installation connection cushion cap (12) and first segment pier shaft (17) lateral regular reinforcement lateral regular reinforcement hole
Road II (171) remains for longitudinal regular reinforcement duct II of longitudinal regular reinforcement of installation connection cushion cap and first segment pier shaft in advance
(172), the vertical prestressing spiral duct II of the vertical prestressing spiral of connection cushion cap and first segment pier shaft is reserved
(174), at the same first segment pier shaft lower end center remain in advance install rotation axis rotation shaft mounting hole road II (173)；
C2: lifting first segment pier shaft:
First segment pier shaft is corresponded to after rotation axis is lifted on cushion cap, in the vertical duct that first segment pier shaft is reserved, insertion
Vertical prestressing spiral is connect with embedded sleeve barrel, is served and is fixed temporarily；
C3: live formwork erection lifts after pouring pier shaft, or the prefabricated pier shaft of segmentation；
D, fabrication and installation overturn-preventing part:
D1, production coagulation dirt chute:
The coagulation dirt chute of one of annular, the rotation for antidumping bracket are poured on the ground；
D2, installation overturn-preventing anchor ear, are placed on coagulation dirt chute；
E, bent cap is made:
Live formwork erection pours bent cap, is segmented prefabricated bent cap rear abutment both sides while lifting；
F, counter-force pier and swivel jack are installed:
F1, in cushion cap marginal position along bridge to two sides, pour swivel jack counter-force pier by drawing, installation swivel is very heavy
It pushes up (4)；
F2, swivel steel strand anchoring disk is set in overturn-preventing anchor ear (6)；
F3, swivel steel strand wires are penetrated in swivel jack (4) and in steel strand anchoring disk respectively, every very heavy very useful 7
The steel strand wires of 15.2 intensity 1860 of diameter；
G, hydraulic power unit and console are connected；
H, rotator construction:
After the completion of H1, above step, vertical prestressing spiral is removed, carries out rotator construction, while measuring monitoring
Work；
H2, after turning in place, in vertical reinforcement duct II (174) that first segment pier shaft (17) are reserved, it is inserted into vertical prestressing
Spiral (16) is connect with sleeve (125) pre-buried in cushion cap, and stretch-draw prestressing force；
H3, the high-strength dedicated mortar of perfusion in the vertical reinforcement duct II (174) that first segment pier shaft (17) are reserved, in first segment pier
Body (17) and cushion cap (12) gap pour high-strength dedicated self-compacting concrete (15)；
H3, ordinary steel is inserted into the lateral regular reinforcement duct I (121) that cushion cap is reserved and longitudinal regular reinforcement duct I (122)
Muscle, grouting；
I, Bridge Pier Construction is completed, and is removed and is turned each auxiliary equipment, is transferred to next Bridge Pier Construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498649.3A CN110117936B (en) | 2019-06-10 | 2019-06-10 | Swivel device for bridge pier and swivel construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498649.3A CN110117936B (en) | 2019-06-10 | 2019-06-10 | Swivel device for bridge pier and swivel construction method |
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| CN110117936A true CN110117936A (en) | 2019-08-13 |
| CN110117936B CN110117936B (en) | 2024-04-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691315A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Bridge pier rotating structure and construction method thereof |
| CN112323646A (en) * | 2020-10-29 | 2021-02-05 | 德州市公路工程总公司 | Construction method and application of horizontal swivel system of rigid frame bridge |
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| CN102808376A (en) * | 2012-08-23 | 2012-12-05 | 新津腾中筑路机械有限公司 | Bridge rotation construction support and bridge construction method |
| CN103205927A (en) * | 2013-04-18 | 2013-07-17 | 东北林业大学 | Anti-overturning bridge pier supporting mechanism |
| CN107964877A (en) * | 2017-11-23 | 2018-04-27 | 中铁九局集团有限公司 | The asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and its construction method |
| CN210529512U (en) * | 2019-06-10 | 2020-05-15 | 柳州欧维姆机械股份有限公司 | Swivel device for bridge pier |
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2019
- 2019-06-10 CN CN201910498649.3A patent/CN110117936B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202099746U (en) * | 2011-06-01 | 2012-01-04 | 东北林业大学 | Cable-stayed bridge flat hinge rotator construction device for horizontal rotator construction |
| CN102808376A (en) * | 2012-08-23 | 2012-12-05 | 新津腾中筑路机械有限公司 | Bridge rotation construction support and bridge construction method |
| CN103205927A (en) * | 2013-04-18 | 2013-07-17 | 东北林业大学 | Anti-overturning bridge pier supporting mechanism |
| CN107964877A (en) * | 2017-11-23 | 2018-04-27 | 中铁九局集团有限公司 | The asymmetric mixing girder stayed-cable bridge horizontal swing structure of super-tonnage and its construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691315A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Bridge pier rotating structure and construction method thereof |
| CN112323646A (en) * | 2020-10-29 | 2021-02-05 | 德州市公路工程总公司 | Construction method and application of horizontal swivel system of rigid frame bridge |
| CN112323646B (en) * | 2020-10-29 | 2022-03-29 | 德州市公路工程总公司 | Construction method and application of horizontal swivel system of rigid frame bridge |
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|---|---|
| CN110117936B (en) | 2024-04-02 |
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