CN106087765A - High pier pier top Cast-in-place concrete bracket precompressed charger - Google Patents
High pier pier top Cast-in-place concrete bracket precompressed charger Download PDFInfo
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- CN106087765A CN106087765A CN201610653594.5A CN201610653594A CN106087765A CN 106087765 A CN106087765 A CN 106087765A CN 201610653594 A CN201610653594 A CN 201610653594A CN 106087765 A CN106087765 A CN 106087765A
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- reaction frame
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of high pier pier top Cast-in-place concrete bracket precompressed charger, belong to field of bridge construction, including the first reaction frame, second reaction frame, first jack and the second jack, first reaction frame and the second reaction frame are respectively arranged in the both sides of high pier pier top, first reaction frame and the second reaction frame are respectively arranged with the first counter-force portion and the second counter-force portion, first counter-force portion and the second counter-force portion stretch out high pier pier top respectively and are positioned at above the concrete bracket of both sides, first jack is arranged between the first concrete bracket and the first counter-force portion, second jack is arranged between the second counter-force portion and the second concrete bracket.This high pier pier top Cast-in-place concrete bracket precompressed charger easily controls the prefabricating load balance of pier stud both sides, facilitate prefabricating load fast discharging on bracket simultaneously, eliminate the potential safety hazard that concrete bracket deformation produces, personnel and the use of machinery in work progress can also be greatly reduced, thus shorten construction period, reduce construction cost.
Description
Technical field
The present invention relates to field of bridge construction, add in particular to a kind of high pier pier top Cast-in-place concrete bracket precompressed and carry
Put.
Background technology
In bridge construction process, the support that usually can be pointed to bridge cantilever position carries out precompressed construction.But, existing
High pier pier top cast-in-place concrete bracket precompressed construction method mostly be use water tank draw water precompressed or place weight piling prepressing,
Above-mentioned prepressing device and method there is problems in that
1. relatively big due to prefabricating load, precompressed construction area is less so that precompressed water tank is higher, each rank in pier stud both sides
Bracket deformation under prefabricating load is not easy to observation, and the prefabricating load of precompressed pier stud both sides balances bad control, work progress
Middle personnel and machinery use more.
2. in bracket pre-compaction process, when occurring abnormal such as bracket deformation, slow to bracket discharge rate, it is impossible to eliminate latent in time
In dangerous matter sources.
3. relatively big due to prefabricating load, the precompressed thing required for precompressed is more, there is high-altitude in precompressed thing hoisting process
Potential safety hazard, and pier stud both sides can only load by crane in turn, pier stud is caused eccentric compression, easily makes pier stud tension
Ftractureing in side, in work progress, personnel and machinery use more, long construction period, and cost is high.
Summary of the invention
It is an object of the invention to provide a kind of high pier pier top Cast-in-place concrete bracket precompressed charger, it can easily be controlled
The prefabricating load balance of pier stud both sides processed, facilitates the fast quick-detach of the prefabricating load on bracket, eliminates safe hidden trouble in time, simultaneously
Personnel and the use of machinery can be greatly reduced, shorten construction period, reduce construction cost.
Embodiments of the invention are achieved in that
A kind of high pier pier top Cast-in-place concrete bracket precompressed charger, it include the first reaction frame, the second reaction frame, the 1000th
Jin top and the second jack, the first reaction frame and the second reaction frame are respectively arranged in the both sides of high pier pier top, the first reaction frame
Being respectively arranged with the first counter-force portion and the second counter-force portion with the second reaction frame, the both sides of high pier pier top are respectively arranged with the first concrete torr
Frame and the second concrete bracket, the first counter-force portion stretches out high pier pier top and is positioned at above the first concrete bracket, and the first jack may be contained within
Between first concrete bracket and the first counter-force portion, the second counter-force portion stretches out high pier pier top and is positioned at above the second concrete bracket, and the 2000th
Jin top may be contained between the second counter-force portion and the second concrete bracket.
The embodiment of the present invention provides the benefit that:
This high pier pier top Cast-in-place concrete bracket precompressed charger use arrange in Gao Dun both sides the reaction frame that cooperates and
Jack pair concrete bracket carries out the mode of precompressed, and associative operation personnel can easily control pier stud both sides by handling jack
Prefabricating load balance, facilitate prefabricating load fast discharging on bracket simultaneously, eliminate the potential safety hazard that concrete bracket deformation produces,
Personnel and the use of machinery in work progress can also be greatly reduced, thus shorten construction period, reduce construction cost, make up existing
There is the defect of technology.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
The structural representation of the high pier pier top Cast-in-place concrete bracket precompressed charger that Fig. 1 provides for the embodiment of the present invention；
The structure at another visual angle of the high pier pier top Cast-in-place concrete bracket precompressed charger that Fig. 2 provides for the embodiment of the present invention
Schematic diagram；
The structural representation of the first reaction frame that Fig. 3 provides for the embodiment of the present invention.
Reference collects:
High pier pier top Cast-in-place concrete bracket precompressed charger 100；
First reaction frame 110；
I-steel 111；
Second reaction frame 120；
First jack 130；
Second jack 140；
First distribution beam structure 150；
First transverse distribution beam 151；
First longitudinal distribution beam 152；
Second distribution beam structure 160；
Second transverse distribution beam 161；
Second longitudinal distribution beam 162；
First anchor rib 170；
First mounting rail 171；
First nut 172；
Second anchor rib 180；
Second mounting rail 181；
Second nut 182；
High pier pier top 200；
First concrete bracket 300；
Second concrete bracket 400；
First supporting leveling block 500；
Second supporting leveling block 600.
Detailed description of the invention
Existing high pier pier top Cast-in-place concrete bracket precompressed construction method be substantially with water tank draw water precompressed or place weight
, there is shortcomings in piling prepressing:
The most significantly waste a large amount of artificial.Prefabricating load must weigh 1.05～1.1 times with actual beam and apply, and precompressed
Load all on bracket, must need the weight loaded more by uniform load.
2. add difficulty of construction.As work high above the ground, the particularly bigger lotus of preloading on the bracket that working area is less
The precompressed construction carried, weight is stacked the highest, and operating personnel's personal safety there is also hidden danger.
3. add many construction major hazard sources.Including falling from high altitude, cave in etc..
4. high-pier bracket precompressed is constructed, as height surpasses 100 meters, use conventional method difficulty very big, be difficult to do
To pier stud not by eccentric compression.
5. bracket deformation observation difficulty is big.The precompressed construction of the bigger load of preloading, bracket on the bracket that working area is less
On observation station lay more difficulty.
6., in bracket pre-compaction process, when occurring abnormal such as bracket deformation, slow to bracket discharge rate, potentially danger is relatively
Greatly.
For above-mentioned situation, present embodiments provide a kind of high pier pier top Cast-in-place concrete bracket precompressed charger 100, its energy
Enough it is effectively improved the problems referred to above.
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
Refer to Fig. 1-2, the present embodiment provides a kind of high pier pier top Cast-in-place concrete bracket precompressed charger 100, and it includes
Three the first reaction frames, 120, three the first jack 130 of 110, three the second reaction frames and three the second jack 140, three
Individual reaction frame 110 and three the first jack 130 one_to_one corresponding, three the second reaction frames 120 and three the second jack 140 1
One is corresponding.
Wherein, above-mentioned first reaction frame 110 and the second reaction frame 120 can use variously-shaped and structure, refer to figure
3, in the present embodiment, the first reaction frame 110 and the second reaction frame 120 all for being welded the truss knot formed by many I-steel 111
Structure.Above-mentioned truss structure includes multiple triangular frame structure, multiple triangular frame structure along its length direction interval arrange and
Coupled together by many girder steels.Said structure has easy to process, conducts oneself with dignity little, the feature that intensity is high.
First reaction frame 110 is respectively arranged in, with the second reaction frame 120, the both sides that high pier pier top 200 is relative.First counter-force
The mode that frame 110 and the second reaction frame 120 are installed has a lot, in the present embodiment, and the first reaction frame 110 and the second reaction frame 120
It is installed in height pier top by anchor rib and nut, specifically, the first reaction frame 110 is provided with two first mounting rails
171,；Two first mounting rails 171 are parallel to each other and are spaced setting, and two first mounting rails 171 all push down the first reaction frame 110
Bottom.Being provided with many first anchor ribs 170 in high pier pier top 200, many first anchor ribs 170 are all vertically arranged and bottom
Being embedded in high pier pier top 200 in advance, there are the first nut 172,172 points of multiple first nuts in top through the first mounting rail 171 and connection
Do not push down the upper surface of two first mounting rails 171.
Being provided with two second mounting rails 181 on second reaction frame 120, two mounting rails are parallel to each other and are spaced setting,
Two second mounting rails 181 push down the bottom of the second reaction frame 120, and high pier pier top 200 is provided with many second anchor ribs
180, many second anchor ribs 180 are all vertically arranged and bottom is embedded in high pier pier top 200 in advance, and top passes the second mounting rail 181
And connection has the second nut 182, multiple second nuts 182 to push down the upper surface of two second mounting rails 181 respectively.
The purpose using said structure and mode to install and fix the first counter-force and the second reaction frame 120 is its structure letter
Single, it is convenient to mount and dismount, first reaction frame 110 and the stability of second reaction frame 120 can be effectively ensured.
In order to reduce the first reaction frame 110 and installation cost of the second reaction frame 120, in the present embodiment, many first peaces
Dress beam 171 and multiple second mounting rail 181 all select I-steel, many first anchor ribs 170 and the second anchor rib 180 all to select
Fining twisted steel, to ensure that the first reaction frame 110 reduces becoming of installation while the second reaction frame 120 intensity as far as possible
This.The concrete size of fining twisted steel determines according to the actual requirements, such as the fining twisted steel of the 28mm selected in the present embodiment.
First reaction frame 110 and the second reaction frame 120 carry out leveling, in the present embodiment, high pier when mounted for convenience
Pier top Cast-in-place concrete bracket precompressed charger 100 also includes multiple first supporting leveling block 500 and multiple second supporting leveling block
600.Multiple first supporting leveling blocks 500 may be contained between the first reaction frame 110 and high pier pier top 200, and is supported on first
The bottom of reaction frame 110 may be contained within the second reaction frame away from the position in the first counter-force portion, multiple second supporting leveling blocks 600
Between 120 and high pier pier top 200, and be supported on the bottom of the second reaction frame 120 away from the position in the second counter-force portion.
The purpose arranging the first supporting leveling block 500 and the second supporting leveling block 600 is to realize the first reaction frame 110
With the supporting of the second reaction frame 120, the first reaction frame 110 and the second reaction frame 120 is facilitated to carry out leveling when installing.
In the present embodiment, the first reaction frame 110 and the second reaction frame 120 are respectively arranged with the first counter-force portion and the second counter-force
Portion, correspondingly, high pier pier top 200 is respectively arranged with the first concrete bracket 300 and second less than the both sides of the position of six reaction frames
Concrete bracket 400.First counter-force portion stretches out high pier pier top 200 and is in vacant state, and is placed exactly on the first concrete bracket 300
Side, the first jack 130 is all arranged at intervals at the first concrete bracket 300 and the first counter-force along the length direction of the first reaction frame 110
Between portion；Second counter-force portion stretches out high pier pier top 200 and is in vacant state, and is positioned at above the second concrete bracket 400, and the 2000th
Jin top 140 is arranged at intervals between the second counter-force portion and the second concrete bracket 400 along the length direction of the second reaction frame 120.
Above-mentioned first jack 130 and the second jack 140 can select various structure and type, in the present embodiment, the
One jack 130 and the second jack 140 all use hydraulic jack, and correspondingly, high pier pier top Cast-in-place concrete bracket precompressed loads
Device 100 is also equipped with hydraulic oil pump, and the first jack 130 connects with hydraulic oil pump respectively with the second jack 140.Select hydraulic pressure
The purpose of jack be its have simple structure, lightweight, be easy to carry, conveniently moving, easy to operate feature, Ke Yicong
Largely facilitate user's manipulation to jack, thus easily realize the construction of the precompressed to concrete bracket.
In order to improve the uniformity that the first concrete bracket 300 is exerted a force by the first jack 130, in the present embodiment, the first concrete torr
Being provided with the first distribution beam structure 150 on frame 300, the first distribution beam structure 150 includes that many first transverse distribution beams 151 are with many
The longitudinal distribution beam 152 of root first, many first transverse distribution beams 151 are placed on the first concrete bracket 300, and many first longitudinally
Distribution beam 152 is positioned on many first transverse distribution beams 151, and the first jack 130 is respectively arranged at multiple first and longitudinally divides
Join at the point midway of beam 152.
Correspondingly, in order to improve the uniformity that the second concrete bracket 400 is exerted a force by the second jack 140, the second concrete bracket 400
On be provided with the second distribution beam structure 160, the second distribution beam structure 160 includes many second transverse distribution beams 161 and Duo Gen
Two longitudinal distribution beam 162, many second transverse distribution beams 161 are placed on the second concrete bracket 400, many second longitudinally distribution
Beam 162 is positioned on many second transverse distribution beams 161, and the second jack 140 is respectively arranged at multiple second longitudinal distribution beam
On 162.
The purpose arranging the first distribution beam structure 150 and the second distribution beam structure 160 is prefabricating load transmission distribution
On the first concrete bracket 300 and the second concrete bracket 400, thus the stress improving the first concrete bracket 300 and the second concrete bracket 400 is equal
Even property, it is ensured that the stability of two concrete bracket precompressed constructions.
First operation principle and the process of this high pier pier top Cast-in-place concrete bracket precompressed charger 100 are such that, respectively
First concrete bracket 300 and the second concrete bracket 400 are installed the first distribution beam structure 150 and the second distribution beam structure 160；So
After, use hoisting machinery that the first reaction frame 110 and the second reaction frame 120 hang the installation site of high pier pier top 200, by the
One supporting leveling block 500 and the second supporting leveling block 600 by after the first reaction frame 110 and the second reaction frame 120 adjustment level, by
First anchor rib the 170, second anchor rib the 180, first mounting rail the 171, second mounting rail the 181, first nut 172 and the second nut
182 will compress anchoring in the middle part of first reaction frame 110 and the second reaction frame 120；Afterwards hydraulic oil pump is placed in height pier top, and
Between the first reaction frame 110 and the first concrete bracket 300, first jack 130 is installed, in the second reaction frame 120 and the second concrete torr
Second jack 140 is installed between frame so that multiple jack centers overlap with corresponding reaction frame axis, and adjusts
One jack 130 and the second jack 140 level；Finally starting hydraulic oil pump, the claw of the first jack 130 raises and props up the
First counter-force portion of one reaction frame 110, then under the counteracting force in the first counter-force portion, the base of the first jack 130 is to
One concrete bracket 300 applies pressure, and correspondingly, the claw of the second jack 140 raises the second counter-force propping up the second reaction frame 120
Portion, then under the counteracting force in the second counter-force portion, the base of the second jack 140 applies pressure to the second concrete bracket 400, executes
The pressure added increases step by step along with the operation of operator, thus realizes the precompressed to high pier pier top 200 both sides concrete bracket and construct.
In sum, this high pier pier top Cast-in-place concrete bracket precompressed charger 100 use six reaction frames and six very heavy
Top coordinates the mode that concrete bracket carries out precompressed, and associative operation personnel can easily control pier stud both sides by handling jack
Prefabricating load balance, facilitate prefabricating load fast discharging on bracket simultaneously, eliminate the potential safety hazard that concrete bracket deformation produces,
Personnel and the use of machinery in work progress can also be greatly reduced, thus shorten construction period, reduce construction cost, make up existing
There is the defect of technology.
Meanwhile, this high pier pier top Cast-in-place concrete bracket precompressed charger 100 also has the advantage that
1. the material used is fewer, has accomplished materials saving；2. simplify technique, simple to operate.Only need to be by bracket
Overall prepressing device is installed according to shown requirement, needs six people to carry out oil pump and operate in operating process；3. avoid
Prefabricating load lifting work high above the ground, decreases many major hazard sources；4. in high pier stud is constructed, as height surpasses 100 meters,
In the case of large lifting equipment, it is not necessary to cross multioperation, bracket precompressed construction can be realized.
Finally, in addition it is also necessary to explanation, in other embodiments, first reaction frame the 110, second reaction frame the 120, the 1000th
The quantity of jin top the 130, the 4th jack 140, it can also be provided that other numerical value, is such as two or is four, specifically
Determine according to the actual requirements.
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Generally herein
Described in accompanying drawing, the assembly with the embodiment of the present invention illustrated can be arranged with various different configurations and design.
Therefore, detailed description to the embodiments of the invention provided in the accompanying drawings is not intended to limit claimed below
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into the model of present invention protection
Enclose.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " are based on orientation shown in the drawings or position relationship, or should
The orientation usually put during the use of invention product or position relationship, be for only for ease of the description present invention and simplify description, and not
It is to indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, the most not
It is understood that as limitation of the present invention.Describe additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing, and can not manage
Solve as instruction or hint relative importance.
Additionally, the term such as term " level ", " vertically " is not offered as requiring parts abswolute level or pendency, but can be slightly
Low dip.As " level " only refers to for its direction relatively " vertically " more level, it is not that this structure of expression must be complete
Full level, but can be slightly tilted.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " arrange ",
" install ", " being connected ", " connection " should be interpreted broadly, and connect for example, it may be fixing, it is also possible to be to removably connect, or one
Body ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with in concrete condition understanding
State term concrete meaning in the present invention.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For Yuan, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. one kind high pier pier top Cast-in-place concrete bracket precompressed charger, it is characterised in that include the first reaction frame, the second counter-force
Frame, the first jack and the second jack, described first reaction frame and the second reaction frame are respectively arranged in the two of high pier pier top
Side, described first reaction frame and described second reaction frame are respectively arranged with the first counter-force portion and the second counter-force portion, described high Dun Dun
The both sides on top are respectively arranged with the first concrete bracket and the second concrete bracket, and described first counter-force portion stretches out described high pier pier top and is positioned at
Above described first concrete bracket, described first jack is arranged between described first concrete bracket and described first counter-force portion, institute
The second counter-force portion that states stretches out described high pier pier top and is positioned at above described second concrete bracket, and described second jack is arranged at described
Between second counter-force portion and described second concrete bracket.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 1, it is characterised in that described first concrete
Being provided with the first distribution beam structure on bracket, described first distribution beam structure includes many first transverse distribution beams and Duo Gen first
Longitudinal distribution beam, many described first transverse distribution beams are placed on described first concrete bracket, and many described first are longitudinally divided
Joining beam to be positioned on many described first transverse distribution beams, described first jack is arranged at many described first longitudinal distribution beam
On；Being provided with the second distribution beam structure on described second concrete bracket, described second distribution beam structure includes that many second are laterally divided
Joining beam and the longitudinal distribution beam of Duo Gen second, many described second transverse distribution beams are placed on described second concrete bracket, many
Described second longitudinal distribution beam is positioned on many described second transverse distribution beams, and described second jack is arranged at described in many
In second longitudinal distribution beam.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 2, it is characterised in that the described 1000th
Jin top and described second jack are hydraulic jack.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 2, it is characterised in that the described 1000th
Jin top is positioned at the point midway of many described first longitudinal distribution beam, and described second jack is positioned at many described second longitudinally
At the point midway of distribution beam.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 1, it is characterised in that described first anti-
Power frame and described second reaction frame all for being welded the truss structure formed by many girder steels.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 5, it is characterised in that many described steel
Beam is I-steel.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 5, it is characterised in that described truss is tied
Structure includes that multiple triangular frame structure, multiple described triangular frame structure interval are arranged.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 1, it is characterised in that described first anti-
Being provided with two first mounting rails on power frame, two described first mounting rails push down described first reaction frame, described high pier pier top
On be provided with many first anchor ribs, many described first anchor ribs are all vertically arranged and bottom is embedded in described high pier pier top in advance,
Top has the first nut, multiple described first nuts to push down the upper of described first mounting rail through described first mounting rail and connection
Surface；Being provided with two second mounting rails on described second reaction frame, two described second mounting rails push down described second counter-force
Frame, described high pier pier top is provided with many second anchor ribs, and many described second anchor ribs are all vertically arranged and bottom is pre-buried
In described high pier pier top, top has the second nut, multiple described second nuts to push down institute through described second mounting rail and connection
State the upper surface of the second mounting rail.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 8, it is characterised in that many described
Described in one anchor rib and Duo Gen, the second anchor rib is fining twisted steel, two described first mounting rails and two described second peaces
Dress beam is I-steel.
High pier pier top Cast-in-place concrete bracket precompressed charger the most according to claim 1, it is characterised in that also include many
Individual first supporting leveling block and multiple second supporting leveling block, multiple described first supporting leveling blocks may be contained within described first anti-
Between power frame and described high pier pier top, multiple described second supporting leveling blocks may be contained within described second reaction frame and described high pier
Between pier top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653594.5A CN106087765A (en) | 2016-08-10 | 2016-08-10 | High pier pier top Cast-in-place concrete bracket precompressed charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653594.5A CN106087765A (en) | 2016-08-10 | 2016-08-10 | High pier pier top Cast-in-place concrete bracket precompressed charger |
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| CN109235275A (en) * | 2018-10-30 | 2019-01-18 | 中铁四局集团有限公司 | A kind of tooling suitable for the extra heavy 0# block bracket precompressed of high-block bridge degree continuous rigid frame |
| CN110018045A (en) * | 2019-03-01 | 2019-07-16 | 安徽省交通控股集团有限公司 | A kind of counterforce device for pier stud pseudo-static experimental |
| CN110714413A (en) * | 2019-11-12 | 2020-01-21 | 中铁四局集团第五工程有限公司 | Graded load prepressing device and method suitable for cast-in-place beam support |
| CN113152293A (en) * | 2021-04-16 | 2021-07-23 | 中国葛洲坝集团第一工程有限公司 | Continuous rigid frame bridge cast-in-place bracket prepressing device and prepressing method |
| CN113914220A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Pre-compaction device of cast-in-place beam bracket |
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| CN109235275A (en) * | 2018-10-30 | 2019-01-18 | 中铁四局集团有限公司 | A kind of tooling suitable for the extra heavy 0# block bracket precompressed of high-block bridge degree continuous rigid frame |
| CN110018045A (en) * | 2019-03-01 | 2019-07-16 | 安徽省交通控股集团有限公司 | A kind of counterforce device for pier stud pseudo-static experimental |
| CN110018045B (en) * | 2019-03-01 | 2022-01-28 | 安徽省交通控股集团有限公司 | Counterforce device for pier stud pseudo-static test |
| CN110714413A (en) * | 2019-11-12 | 2020-01-21 | 中铁四局集团第五工程有限公司 | Graded load prepressing device and method suitable for cast-in-place beam support |
| CN110714413B (en) * | 2019-11-12 | 2024-04-26 | 中铁四局集团第五工程有限公司 | Graded load prepressing device and method suitable for cast-in-situ beam bracket |
| CN113152293A (en) * | 2021-04-16 | 2021-07-23 | 中国葛洲坝集团第一工程有限公司 | Continuous rigid frame bridge cast-in-place bracket prepressing device and prepressing method |
| CN113914220A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Pre-compaction device of cast-in-place beam bracket |
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Application publication date: 20161109 |