CN105888357B - A kind of liftable steel construction radar tower using bottom jacking type - Google Patents
A kind of liftable steel construction radar tower using bottom jacking type Download PDFInfo
- Publication number
- CN105888357B CN105888357B CN201610446746.4A CN201610446746A CN105888357B CN 105888357 B CN105888357 B CN 105888357B CN 201610446746 A CN201610446746 A CN 201610446746A CN 105888357 B CN105888357 B CN 105888357B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000003032 molecular docking Methods 0.000 claims abstract description 4
- 241000282326 Felis catus Species 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012092 media component Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/344—Arrangements for lifting tower sections for placing additional sections under them
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of liftable steel construction radar towers using bottom jacking type comprising：Tower body, the tower body are formed by connecting by tower body standard knot；The both ends of the tower body standard knot are equipped with connector, and the docking for adjacent tower body standard knot connects；Tower body standard knot is equipped with jacking fulcrum；Standard knot support device, the standard knot support device is arranged in the inside of tower body, for supporting tower body during tower body jacking；The length of the standard knot support device is more than the length of tower body standard knot；Jacking apparatus, the jacking apparatus are used to tower body being moved to the second height and position by the first height and position, and the difference of the first height and position and the second height and position is greater than or equal to the height of a tower body standard knot.The radar tower of the present invention can carry out bottom to radar tower and increase, and without removing top radar equipment etc., meet the normal operation of radar equipment, also effectively avoid due to planning insufficient height, and to subsequently promoting radar tower height degree the problem of is resolved.
Description
Technical field
The present invention relates to a kind of liftable steel construction radar towers using bottom jacking type.
Background technology
Steel construction radar tower is the high steel structure support of frame for supporting radar equipment and protective cover, and radar is promoted by radar tower
Equipment, the general hoisting depth of radar tower are 10m~40m, effectively prevent surrounding buildings, trees, mountain range etc. to radar emission and
The blocking for receiving signal is the important equipment that airborne aircraft is monitored in civil aviaton or military aviation.
In recent years, it emerges one after another with the continuous promotion skyscraper of national economic strength, and radar equipment updates
Period is slower, and a radar equipment design life is all at 20 years or more, follow-up periphery difficult to calculate when due to preconsolidation stress
The speed that building body is increased leads to the problem of radar tower height degree and is covered by follow-up neighboring buildings, and blocking for neighboring buildings sets radar
Standby normal operation produces a very large impact.To ensure the normal operation of radar equipment, radar tower need to be increased again or by radar
It is moved to other addresses.Regardless of scheme, be required for dismantling radar tower and other equipment, and re-start radar tower and
The installation of equipment, it is time-consuming laborious.
In addition, radar equipment need it is 8 years or so large-scale safeguard primary, needed when being safeguarded by radar equipment etc. from thunder
It is unloaded down on up to tower, radar antenna dead weight is differed from 2.5 tons to 8 ton or so, and manpower is difficult to complete to load and unload, and need to use Large-scale Hoisting
Equipment carries out construction operation.
Invention content
The object of the present invention is to provide a kind of liftable steel construction radar towers using bottom jacking type, to solve radar tower
When needing to carry out height change, it is necessary to radar tower and other equipment be dismantled, and re-start the installation of radar tower and equipment, taken
The time-consuming and laborious problem of work.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of liftable steel construction using bottom jacking type
Radar tower comprising：
Tower body, the tower body are formed by connecting by tower body standard knot；The both ends of the tower body standard knot are equipped with connector, are used for
The docking of adjacent tower body standard knot connects；The tower body standard knot is equipped with jacking fulcrum；
Standard knot support device, the standard knot support device is arranged in the inside of tower body, for jacking process in tower body
Middle support tower body；The length of the standard knot support device is more than the double length of tower body standard knot；
Jacking apparatus, the jacking apparatus are used to tower body being moved to the second height and position by the first height and position, and first
The difference of height and position and the second height and position is greater than or equal to the height of a tower body standard knot.
The present invention uses the liftable steel construction radar tower of bottom jacking type, further, the tower body mark as described above
Quasi- section includes tower body standard knot montant and tower body standard knot cross bar, and the quantity of the tower body standard knot montant is four, tower body mark
The both ends of quasi- section montant are equipped with connecting flange；The tower body standard knot cross bar be fixedly connected on adjacent tower body standard knot montant it
Between, form the tower body standard knot of rectangular parallelepiped structure.
The present invention uses the liftable steel construction radar tower of bottom jacking type, further, the tower body mark as described above
Quasi- section further includes brace, and the brace is oblique to be connected between adjacent tower body standard knot montant.
The present invention uses the liftable steel construction radar tower of bottom jacking type, further, the standard knot as described above
Support device includes standard knot support device montant and standard knot support device cross bar, the number of the standard knot support device montant
Amount is four；The standard knot support device cross bar is fixedly connected between adjacent tower body standard knot montant, forms cuboid
The standard knot support device of structure.
The present invention uses the liftable steel construction radar tower of bottom jacking type, further, the standard knot as described above
Support device further includes bracing piece, the bracing piece be connected to standard knot support device montant and standard knot support device cross bar it
Between.
The present invention uses the liftable steel construction radar tower of bottom jacking type as described above, further, adjacent at two
It is surveyed in the apex angle that tower body standard knot cross bar is formed and is fixed with pulley, the pulley is contacted with standard knot support device montant, standard
Save track of the support device montant as pulley.
The present invention uses the liftable steel construction radar tower of bottom jacking type, further, the tower body mark as described above
Quasi- section further includes plug-in cat ladder, and the plug-in cat ladder is used to climb for radar maintenance personnel.
The present invention uses the liftable steel construction radar tower of bottom jacking type as described above, further, the jacking dress
It sets including the first hydraulic jack and the second hydraulic jack, the hydraulic cylinder of first hydraulic jack is fixedly connected on ground
On the basis of, the jacking branch point contact of the plunger of the first hydraulic jack and second standard knot positioned at tower body bottom；Described
The hydraulic cylinder of two hydraulic jacks be fixedly connected in ground base or radar tower bottom steel foundation pier on, the second hydraulic jack
The plunger on top is hinged with the hydraulic cylinder outer wall of corresponding first hydraulic jack.
The present invention uses the liftable steel construction radar tower of bottom jacking type as described above, further, the jacking branch
Groove of the point with spherical structure, the plunger end of first hydraulic jack are the protrusion of spherical structure, the protrusion with
The groove adaptation.
The beneficial effects of the invention are as follows：
The present invention devises a kind of radar tower with bottom jacking apparatus, and bottom can be carried out to radar tower by corollary equipment
Portion increases, and without removing top radar equipment etc., meets the normal operation of radar equipment, also effectively avoids due to planning
Insufficient height, to subsequently promoting radar tower height degree the problem of, are resolved.
In addition, radar equipment need it is 8 years or so large-scale safeguard primary, needed when being safeguarded by radar equipment etc. from thunder
It is unloaded down on up to tower, radar antenna dead weight is differed from 2.5 tons to 8 ton or so, and manpower is difficult to complete to load and unload, and need to use Large-scale Hoisting
Equipment carries out construction operation, through the invention can integrally reduce radar tower, avoids the expense of Large-scale Hoisting.
Description of the drawings
By being described in detail made by conjunction with the following drawings, above-mentioned and/or other aspects of the invention and advantage will become
It becoming apparent from and is easier to understand, these attached drawings are only schematical, are not intended to limit the present invention, wherein：
Fig. 1 is a kind of liftable steel construction radar tower schematic diagram using bottom jacking type of embodiment；
Fig. 2 is the tower body and jacking apparatus schematic diagram of an embodiment of the present invention；
Fig. 3 is the tower body standard knot montant at the positions B and jacking fulcrum schematic diagram in Fig. 2；
Fig. 4 is the plunger end schematic diagram of first hydraulic jack at the positions B in Fig. 2；
Fig. 5 is the Section A-A schematic diagram of Fig. 2；
Fig. 6 is the pulley schematic diagram in the positions C in Fig. 5；
Fig. 7 is the standard knot support device schematic diagram of an embodiment of the present invention；
Fig. 8 utilizes jacking apparatus to carry out schematic diagram before standard knot jacks for an embodiment of the present invention；
Fig. 9 be an embodiment of the present invention using jacking apparatus progress standard knot jacking after schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows：
1, tower body standard knot, 11, tower body standard knot montant, 12, tower body standard knot cross bar, 13, brace, 14, jacking branch
Point, 15, plug-in cat ladder, 16, pulley, 17, connecting flange, 18, groove；
2, jacking apparatus, the 21, first hydraulic jack, the hydraulic cylinder of the 211, first hydraulic jack, the 212, first hydraulic pressure
The plunger of jack, the 22, second hydraulic jack, the hydraulic cylinder of the 221, second hydraulic jack, the 222, second hydraulic jack
Plunger；
3, standard knot support device, 31, standard knot support device montant, 32, standard knot support device cross bar, 33, reinforce
Bar；
4, radar.
Specific implementation mode
Hereinafter, the reality of the liftable steel construction radar tower using bottom jacking type of the present invention is described with reference to the accompanying drawings
Apply example.
The embodiment recorded herein is the specific specific implementation mode of the present invention, for illustrating design of the invention,
It is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the application claims and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include any obvious using making for the embodiment to recording herein
The technical solution of substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating the design of the present invention, it is schematically indicated the shape of each section
And its correlation.The structure of each component for the ease of clearly showing the embodiment of the present invention is note that, between each attached drawing
Do not drawn according to identical ratio.Identical reference marker is for indicating identical part.
Fig. 1 shows the liftable steel construction radar tower using bottom jacking type of an embodiment of the present invention comprising：
Tower body, the tower body are formed by connecting by tower body standard knot 1；The both ends of the tower body standard knot 1 are equipped with connector, use
It is connected in the docking of adjacent tower body standard knot 1；The tower body standard knot is equipped with jacking fulcrum 14；At the top of tower body shown in Fig. 1
Radar 4 is installed.In a preferred embodiment, tower body main body steel are all made of round steel pipe, relative to common angle steel or square tube, have
Effect reduces wind load 20%~40%, saves material, and tower body barycenter moves down, and reduces whole pylon deformation, and meet equipment to make
With requiring, using standard knot design method, it is high that rod piece repeats utilization rate, easy for installation.
Standard knot support device 3, the standard knot support device 3 is arranged in the inside of tower body, for being jacked in tower body
Tower body is supported in journey；The length of the standard knot support device 3 is more than the double length of tower body standard knot；
Jacking apparatus 2, the jacking apparatus 2 are used to tower body being moved to the second height and position by the first height and position, the
The difference of one height and position and the second height and position is greater than or equal to the height of a tower body standard knot 1.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, as shown in Fig. 2, institute
It includes tower body standard knot montant 11 and tower body standard knot cross bar 12, the number of the tower body standard knot montant 11 to state tower body standard knot 1
Amount is four, as shown in figure 3, the both ends of tower body standard knot montant 11 are equipped with connecting flange 17；The tower body standard knot cross bar 12
It is fixedly connected between adjacent tower body standard knot montant 11, forms the tower body standard knot 1 of rectangular parallelepiped structure.Preferred real
It applies in example, the tower body standard knot 1 further includes brace 13, and the brace 13 is oblique, and to be connected to adjacent tower body standard knot perpendicular
Between bar 11.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, as shown in fig. 7, institute
It includes standard knot support device montant 31 and standard knot support device cross bar 32, the standard knot branch to state standard knot support device 3
The quantity of support arrangement montant 31 is four；The standard knot support device cross bar 32 is fixedly connected on adjacent standard knot support dress
Between setting montant 31, the standard knot support device 3 of rectangular parallelepiped structure is formed.In a more preferred embodiment, the standard knot branch
Support arrangement further includes bracing piece 33, and it is horizontal with standard knot support device that the bracing piece 33 is connected to standard knot support device montant 31
Between bar 32.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, such as Fig. 5 and Fig. 6 institutes
Show, is surveyed in the apex angle that 1 two adjacent horizontal 12 bars of tower body standard knot are formed and be fixed with pulley 16, the pulley 16 and standard knot branch
Support arrangement montant 31 contacts, track of the standard knot support device montant 31 as pulley 16.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, as shown in Figure 1, institute
It further includes plug-in cat ladder 15 to state tower body standard knot 1, and the plug-in cat ladder 15 is used to climb for radar maintenance personnel.Preferred real
It applies in example, plug-in cat ladder is installed using external hanging type loose mail, one can be installed by jack, avoid cat ladder importing tower
Many installations in internal portion are inconvenient, accelerate promotion progress.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, such as the institutes of Fig. 8 and 9
Show, the jacking apparatus 2 includes the first hydraulic jack 21 and the second hydraulic jack 22, the liquid of first hydraulic jack
Cylinder pressure 211 is fixedly connected in ground base, the plunger 212 of the first hydraulic jack and second standard for being located at tower body bottom
The jacking branch point contact of section；The hydraulic cylinder 221 of second hydraulic jack is fixedly connected in ground base or radar tower bottom
On portion's steel base pier, the plunger 222 of the second hydraulic jack is cut with scissors with 211 outer wall of hydraulic cylinder of corresponding first hydraulic jack
It connects.When hydraulic jack withstands on jacking tower body, it is located at the standard knot support device on the inside of tower body and coordinates with pulley, tower body is in standard knot
The problems such as moving on the track that support device montant is formed, prevent tower body from being rolled in moving process.
In the liftable steel construction radar tower using bottom jacking type of the above embodiment of the present invention, as shown in figure 4, institute
Stating jacking fulcrum 14 has the groove 18 of spherical structure, and 212 end of plunger of first hydraulic jack is spherical structure
Protrusion, the protrusion are adapted to the groove.
Liftable type radar tower uses the mode of bottom jacking, by the way that jacking apparatus and standard knot support device is arranged,
It jacks the tower body standard knot montant of tower body standard knot and by standard knot support device montant as sliding rail and support, is carried from bottom
Top tower body is risen to certain height, lower part carries out installation tower body standard knot, after standard knot installs, repeats above-mentioned mistake again
Journey, to promote radar tower height degree, the hoisting way of such as tower crane is essentially different compared with the existing technology, and tower crane is generally adopted
It with outer cover section and is jacked from top, standard section of tower crane is installed after the completion of jacking every time.
Steel construction radar tower generally requires rigidity larger due to the rigorous of radar equipment, therefore tower body weight is very heavy,
Installation difficulty is big if using aerial lifting, and personal height operation is dangerous.Present invention employs the modes that bottom is promoted, and will mark
Quasi- section support device is arranged inside tower body, and tower body standard knot carries out bottom assembly as granular media component, without external support
The obstruction of device can be easily accomplished integral assembling, be not necessarily to the support of any mechanical equipment, personnel are Ground Operation, nothing
The danger of working at height.
As shown in figure 8, carrying out schematic diagram before standard knot jacks using jacking apparatus for an embodiment of the present invention；First
The jacking branch point contact of the plunger 212 of hydraulic jack and second standard knot positioned at tower body bottom；As shown in figure 9, for this
That invents a kind of embodiment utilizes jacking apparatus to carry out schematic diagram after standard knot jacking.The plunger 212 of first hydraulic jack will
Positioned at the height of one standard knot of jacking of second standard knot of tower body bottom, an installation standard knot is formed below tower body
Space.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and other feature combination, and those skilled in the art are also
Other combinations between each technical characteristic can be carried out according to the purpose of invention, be subject to realize the present invention purpose.
Claims (6)
1. a kind of liftable steel construction radar tower using bottom jacking type, which is characterized in that including：
Tower body, the tower body are formed by connecting by tower body standard knot；The both ends of the tower body standard knot are equipped with connector, for adjacent
The docking of tower body standard knot connects；The tower body standard knot is equipped with jacking fulcrum；
Standard knot support device, the standard knot support device is arranged in the inside of tower body, for being propped up during tower body jacking
Support tower body；The length of the standard knot support device is more than the double length of tower body standard knot；
Jacking apparatus, the jacking apparatus are used to tower body being moved to the second height and position, the first height by the first height and position
The difference of position and the second height and position is greater than or equal to the height of a tower body standard knot；
The standard knot support device includes standard knot support device montant and standard knot support device cross bar, the standard knot branch
The quantity of support arrangement montant is four；It is perpendicular that the standard knot support device cross bar is fixedly connected on adjacent standard knot support device
Between bar, the standard knot support device of rectangular parallelepiped structure is formed；
The standard knot support device further includes bracing piece, and the bracing piece is connected to standard knot support device montant and standard knot
Between support device cross bar.
2. the liftable steel construction radar tower according to claim 1 using bottom jacking type, which is characterized in that the tower
Body standard knot includes tower body standard knot montant and tower body standard knot cross bar, and the quantity of the tower body standard knot montant is four, tower
The both ends of body standard knot montant are equipped with connecting flange；It is perpendicular that the tower body standard knot cross bar is fixedly connected on adjacent tower body standard knot
Between bar, the tower body standard knot of rectangular parallelepiped structure is formed.
3. the liftable steel construction radar tower according to claim 1 using bottom jacking type, which is characterized in that at two
It is surveyed in the apex angle that adjacent tower body standard knot cross bar is formed and is fixed with pulley, the pulley is contacted with standard knot support device montant,
Track of the standard knot support device montant as pulley.
4. the liftable steel construction radar tower according to claim 1 using bottom jacking type, which is characterized in that the tower
Body standard knot further includes plug-in cat ladder, and the plug-in cat ladder is used to climb for radar maintenance personnel.
5. the liftable steel construction radar tower according to claim 1 using bottom jacking type, which is characterized in that the top
It includes the first hydraulic jack and the second hydraulic jack to rise device, and the hydraulic cylinder of first hydraulic jack is fixedly connected on
In ground base, the jacking branch point contact of the plunger of the first hydraulic jack and second standard knot positioned at tower body bottom；Institute
The hydraulic cylinder for stating the second hydraulic jack be fixedly connected in ground base or radar tower bottom steel foundation pier on, the second hydraulic pressure
The plunger of jack is hinged with the hydraulic cylinder outer wall of corresponding first hydraulic jack.
6. the liftable steel construction radar tower according to claim 5 using bottom jacking type, which is characterized in that the top
Ascending branch point has the groove of spherical structure, and the plunger end of first hydraulic jack is the protrusion of spherical structure, described convex
It rises and is adapted to the groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446746.4A CN105888357B (en) | 2016-06-21 | 2016-06-21 | A kind of liftable steel construction radar tower using bottom jacking type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610446746.4A CN105888357B (en) | 2016-06-21 | 2016-06-21 | A kind of liftable steel construction radar tower using bottom jacking type |
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| CN105888357A CN105888357A (en) | 2016-08-24 |
| CN105888357B true CN105888357B (en) | 2018-09-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111535187B (en) * | 2020-05-07 | 2022-03-29 | 中交路桥华南工程有限公司 | Guide rail type installation method of steel cable tower |
| CN111762657B (en) * | 2020-06-10 | 2022-01-18 | 湖南怀奥机电有限公司 | Construction elevator support standard knot that prevents that heeling collapses |
| CN112681526A (en) * | 2020-12-14 | 2021-04-20 | 中国建筑第八工程局有限公司 | Jacking and installing system and method for large-span steel structure |
| CN113250473B (en) * | 2021-06-21 | 2024-09-24 | 广西地矿建设集团有限公司 | Sectional lifting installation device and installation method for ultra-high conical steel tower |
| CN113969544A (en) * | 2021-08-05 | 2022-01-25 | 杨得咏 | A kind of high bridge pier construction device and installation method thereof |
| CN115231470B (en) * | 2022-06-24 | 2023-08-01 | 甘肃省建设投资(控股)集团有限公司 | Jacking device and jacking method for installing standard section of secondary reflection tower |
| CN116641477B (en) * | 2023-04-17 | 2025-08-01 | 广州盈德建筑工程有限公司 | Steel structure assembling mechanism and steel structure vertical assembling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206128803U (en) * | 2016-06-21 | 2017-04-26 | 衡水通广塔业有限公司 | Adopt liftable steel construction radar tower of bottom jacking formula |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102071798B (en) * | 2011-01-30 | 2012-01-04 | 中建三局建设工程股份有限公司 | Hydraulic climbing system for wall-attached support frame |
| US9032689B2 (en) * | 2013-03-12 | 2015-05-19 | Konecranes Plc | Jacking tower |
| CN203383570U (en) * | 2013-05-02 | 2014-01-08 | 浙江省建设机械集团有限公司 | Direct-measured digital display displacement and automatic balance device for jacking multiple oil cylinders |
| CN203794570U (en) * | 2013-12-27 | 2014-08-27 | 柳州欧维姆机械股份有限公司 | Standard section jacking device |
| CN103964300B (en) * | 2014-05-16 | 2015-12-30 | 上海振华重工(集团)股份有限公司 | Jacking type increases equipment |
| CN204826717U (en) * | 2015-08-13 | 2015-12-02 | 中建四局安装工程有限公司 | Novel steel construction jacking combined bay |
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| CN206128803U (en) * | 2016-06-21 | 2017-04-26 | 衡水通广塔业有限公司 | Adopt liftable steel construction radar tower of bottom jacking formula |
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