CN208717934U - A kind of tower-crane foundation structure - Google Patents
A kind of tower-crane foundation structure Download PDFInfo
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- CN208717934U CN208717934U CN201821021998.3U CN201821021998U CN208717934U CN 208717934 U CN208717934 U CN 208717934U CN 201821021998 U CN201821021998 U CN 201821021998U CN 208717934 U CN208717934 U CN 208717934U
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Abstract
A kind of tower-crane foundation structure is set in foundation pit, the steel pipe column of the concrete bearing platform of bored concrete pile, top including bottom and centre, bored concrete pile and steel pipe column totally four, square setting；In the bottom insertion bored concrete pile of steel pipe column, it is welded and fixed with the steel reinforcement cage in bored concrete pile, and hoop of putting more energy into is set and is reinforced；It is protruded into concrete bearing platform at the top of the steel pipe column, end setting steel deck-plate is sealed；In concrete bearing platform, if setting arterial highway surrounding support angle steel at the top of steel pipe column, four support brandreths arranged in square are set, pre-buried supporting leg and the support brandreth of the pre-buried section bottom of tower crane are welded and fixed on support angle steel.The utility model is designed reasonably, structure is simple, easy for construction, bearing capacity is strong, stability is good, and large-sized multiple layer public building multitower is suitble to hang deployment scenarios, for place underground water and soil to concrete structure and Reinforcing Steel Bar In Reinforced Concrete Structure are in microcorrosion the case where it is especially suitable.
Description
Technical field
The utility model belongs to tower crane technical field of construction, and in particular to a kind of tower-crane foundation structure.
Background technique
Tower crane can be all generally used in Building Construction, for leaning on for the cantilevered out boom hoist object gone, tower crane
There is the very big torque toppled over, and also higher to ground requirement for bearing capacity.And the stability of tower crane to tower crane just
Be often used and security and stability for it is most important, be to maintain safety of tower crane operation necessary condition.Existing tower crane is general
All be concreting into pedestal, pedestal grow tall wide size and arrangement of reinforcement needs to meet tower crane and topples stabilization, foundation bearing capacity, base
The requirement of seat cracking resistance.Deployment scenarios are hung for large-sized multiple layer public building multitower, especially for place underground water and soil to mixed
For the case where Xtah Crude Clay structure and Reinforcing Steel Bar In Reinforced Concrete Structure are in microcorrosion, existing tower crane applicability is relatively
Difference.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of novel tower-crane foundation structure, make that it is suitable for large-sized multiple layers
Public building multitower hangs deployment scenarios, especially for place underground water and soil in concrete structure and reinforced concrete structure
The case where reinforcing bar is in microcorrosion.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution:
A kind of tower-crane foundation structure is set in foundation pit, it is characterised in that: the concrete of bored concrete pile, top including bottom
Cushion cap and intermediate steel pipe column, the bored concrete pile and steel pipe column totally four, square setting；The bottom of the steel pipe column is inserted into
It in bored concrete pile, is welded and fixed with the steel reinforcement cage in bored concrete pile, and hoop of putting more energy into is set and is reinforced；It is protruded at the top of the steel pipe column mixed
In solidifying soil cushion cap, end setting steel deck-plate is sealed；In the concrete bearing platform, held if setting arterial highway surrounding at the top of steel pipe column
Angle steel is held in the palm, four support brandreths arranged in square, the pre-buried supporting leg of the pre-buried section bottom of tower crane are set on the support angle steel
It is welded and fixed respectively with support brandreth.
As the optimal technical scheme of the utility model, 1000mm in concrete bearing platform is anchored at the top of the steel pipe column,
The depth that bottom is inserted into bored concrete pile is 3000mm.
Further, if arterial highway support rod is arranged between the steel pipe column, the support rod includes setting for horizontal circle one week
Four steel pipe column drawknots are become a fixed entirety by the horizontal cross brace of the surrounding support and diagonal mounted on top set.
Further, the support brandreth is four table type frame, including top plate and supporting leg, and the top plate is equipped with and prevents from mixing
The preformed hole that solidifying soil floats when pouring；It is welded between four support brandreths by bar dowel integral.
Further, the steel pipe column protrude into the bottom in bored concrete pile setting additional bar, the additional bar respectively with
Being connected for steel pipe column and steel reinforcement cage is realized in steel pipe column and steel reinforcement cage welding.
Further, the effective length of the bored concrete pile is not less than 16m, diameter 0.8m, strength grade of concrete C30,
Fullness coefficient is not less than 1.1.
Further, the cushion cap reinforcing bar of the concrete bearing platform is double-layer double-direction reinforcing bar, C22 200mm gluten, C20
200 bottom mm muscle, 600 mm tension rib of quincuncial arrangement C16@are 1500 mm split heads of C20@between gluten and bottom muscle.
Compared with prior art, the utility model has the technical advantages that:
1, stability is good: adding the type of foundation of concrete bearing platform by using cast-in-situ bored pile insertion steel pipe column, each
Reinforcement structure is all arranged in link, and entire tower crane is made to form an overall structure, and stability is good；
2, rationally, easy for construction, bearing capacity is strong for design, and large-sized multiple layer public building multitower is suitble to hang deployment scenarios, right
In place underground water and soil to concrete structure and Reinforcing Steel Bar In Reinforced Concrete Structure are in microcorrosion the case where it is especially suitable.
Detailed description of the invention
By made detailed description in conjunction with the following drawings, above-mentioned and/or other aspects and advantage of the utility model will
It becomes more apparent upon and is easier to understand, these attached drawings are only schematical, are not intended to limit the utility model, in which:
Fig. 1 be the utility model relates to tower-crane foundation structure overall structure diagram；
Fig. 2 is the arrangement schematic diagram of additional bar；
Fig. 3 is the attachment structure schematic diagram of steel pipe column and bored concrete pile and concrete bearing platform；
Fig. 4 is the structural schematic diagram of support rod；
Fig. 5 is the overall structure diagram for supporting brandreth；
Fig. 6 is the overlooking structure diagram of Fig. 5；
Fig. 7 is the arragement construction schematic diagram of steel plate for sealing water.
Appended drawing reference: 1- bored concrete pile, 1.1- steel reinforcement cage, 2- steel pipe column, 2.1- steel deck-plate, 2.2- seal plate, 2.3- support
Bar, the support of 2.31- surrounding, 2.32- horizontal cross brace, 3- concrete bearing platform, the pre-buried section of 4- tower crane, 5- additional bar, 6- surrounding
Support angle steel, 7- support brandreth, 8- sole plate, 9- top plate.
Specific embodiment
Hereinafter, the embodiment of the tower-crane foundation structure of the utility model is described with reference to the accompanying drawings.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be public based on the claim of this application book and specification institute
For the content opened using obvious other technical solutions, these technical solutions include using doing to the embodiment recorded herein
The technical solution of any obvious substitutions and modifications out.The attached drawing of this specification is schematic diagram, and it is practical new to aid in illustrating this
The design of type, it is schematically indicated the shape and its correlation of each section.It note that for the ease of clearly showing this reality
With the structure of each component of new embodiment, do not drawn according to identical ratio between each attached drawing.Identical reference marker is used
In the identical part of expression.
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.Such as Fig. 1, a kind of tower crane of the tower-crane foundation structure of the utility model
Structure is set in foundation pit, it is characterised in that: the concrete bearing platform 3 of bored concrete pile 1, top including bottom and the steel pipe column of centre
2, the bored concrete pile 1 and steel pipe column 2 totally four, square setting；In the bottom insertion bored concrete pile 1 of the steel pipe column 2, with filling
Steel reinforcement cage 1.1 in note stake 1 is welded and fixed, and hoop of putting more energy into is arranged and is reinforced；Concrete bearing platform is protruded at the top of the steel pipe column 2
In 3, end setting steel deck-plate 2.1 is sealed；In the concrete bearing platform 3, if setting arterial highway surrounding support at the top of steel pipe column 2
Four support brandreths 7 arranged in square, the pre-buried branch of pre-buried 4 bottom of section of tower crane are arranged on the support angle steel 6 for angle steel 6
Leg is welded and fixed with support brandreth 7.Specific construction process is as follows:
1, tower crane form is determined
In conjunction with this engineering practice, all tower cranes are inserted into steel pipe column 2 plus concrete bearing platform using cast-in-situ bored pile 1
3 type of foundation, 3 key dimension of tower crane concrete bearing platform be 4500mm × 4500mm × 1300mm or 5500mm × 5500mm ×
1700mm, cushion cap 200 double-layer double-direction of hypodermis absolute altitude -0.3m, cushion cap strength grade of concrete C35, bottom C20@, top C22@
200 double-layer double-directions, quincuncial arrangement tension rib C16@600.
1 effective length of bored concrete pile is not less than 16m, diameter d=0.8m, strength grade of concrete C30, main reinforcement 15C25, hoop
(steel pipe column is inserted into cast-in-situ bored pile 3000mm to 8@200 of muscle Φ, this section of connecting portion adds 8C25 reinforcing bar, 8@of stirrup Φ, 100 spiral shell
Revolve muscle).
Reach 80%(to concrete strength after tower crane concreting with same condition concrete test block pressure resistance
Subject to degree report) tower crane installation can be carried out.Construction period will fully ensure that column foot concrete curing works, to enter tower as early as possible
Installation is hung, guarantees that tower crane comes into operation when basis and construction of bottom plates.
When earth excavation, it is desirable that weld support rod 2.3, including the support of vertical type surrounding on 2 foundation pile of steel pipe column when excavating
2.31 and horizontal cross brace 2.32(first welds angle steel support on steel pipe column 2, then the weld horizontal bridging in support) etc.
Strutting means is shown in Fig. 4.
2, pile foundation construction
Tower crane stake uses bored concrete pile 1, pile body diameter 800mm, and tower stake away from 2.7m, is arranged, bored concrete pile 1 in the heart in four sides
Upper insertion steel pipe column 2 Φ 426mm × 10mm material Q235B, a height of 0.7m of 2 top mark of steel pipe column, steel pipe column 2 anchor into concrete bearing platform
1000mm in 3, steel pipe column 2 are inserted into 3000mm in bored concrete pile 1, and pile concrete grade is C30.
Such as Fig. 2, pile body main reinforcement reinforces closing using 12C25 etc. points of arrangement, the welding of stirrup Φ 8 200/100, C16 2000
Hoop, steel pipe and steel reinforcement cage 1.1 weld, and connecting portion sets additional bar 5, and additional bar 5 selects 8C25 reinforcing bar, is welded in main reinforcement simultaneously
It is welded with steel pipe column 2.Steel pipe column 2 has welded decentralization together with 1.1 main reinforcement of steel reinforcement cage, and when placement requires 2 side of steel pipe column to be parallel to
The fullness coefficient of axis direction, bored concrete pile 1 cannot be less than 1.1.Pile foundation uses rotary digging drilled as holes.
3, earth excavation and cushion construction
After bored concrete pile 1 is constructed, pile strength test starts the earthwork (using actual experiment result as foundation) after reaching 80%
It excavates, below earth excavation to 3 bottom of concrete bearing platform after 100mm, 100mm thickness C15 concrete is poured under cushion cap, every hem width goes out
The bed course of cushion cap side 300mm.
4, concrete bearing platform 3 is constructed
Using rectangle cushion cap side length 4.5m, thickness 1.3m；Cushion cap reinforcing bar is C22 200, bottom C20 at the top of double-layer double-direction
200, quincuncial arrangement tension rib C16@600, split heads use C20@1500.
5, reinforced bar engineering
Reinforcing bar binding: surveying setting-out → releasing reinforcement location line → binding lower layer two-way concrete slab → pre-buried fixed supporting leg → is tied up
Two-way concrete slab and lacing wire on bundle.
When the binding construction of foundation platform reinforcing bar, the reinforcement location line that must be released first is arranged by reinforcement location line later
Muscle.The protective layer used mortar pad of cushion cap base concrete, pad thickness are equal to protective layer thickness 50mm, and spacing presses 508mm × 508mm
Requirement be configured；Cushion cap side carries out control protective layer thickness with plastic cushion." several " are set between cushion cap bottom muscle and gluten
Font reinforcing bar stirrup, HRB400 grades of diameters 20 of reinforcing bar, spacing 1500mm × 1500mm.
6, template construction
Using bed course as tower crane template, basic sideline is popped up on bed course.Tower crane week cheek board uses 15 mm
Thick wood plywood ,+22 reinforcement welding of M16 split bolt are welded to one of drawing 600；Secondary joist uses between 50 × 100 flitches
Away from 200, horizontal direction is placed；Main joist is by the way of pounding steel pipe into soil, spacing 500；Diagonal brace and earth anchor are all made of steel pipe,
Diagonal brace is securely connect with main joist steel pipe.
7, concreting
It is checked in the verticality of pre-buried tower crane fixing bolt and plan-position and reinforcing bar, template, Construction of Supporting meets the requirements
Afterwards, concreting can be carried out.
Tower crane concrete is poured using prefabricated sliding slot.
When concreting, keep a close eye on observation reinforcing bar and pre-embedded bolt whether there is or not ambulatories must when discovery has displacement
It must stop pouring immediately and adjust in time, be further continued for pouring after processing completely.
When concreting, vibrating head must not collide with pre-embedded bolt and support brandreth, in order to avoid cause fixed feet and branch
Perpendicularity deviation occurs for the displacement of iron brace frame.
Concrete vibrating will accomplish " fast insert pull out slowly ", and concreting, which is vibrated, wants closely knit, after vibrating first with darby oneself
Tower body carries out looking for slope to four sides, then looks for slope to be compacted with wooden float again, before concrete reaches initial set, carries out secondary compaction, uses
Wooden float pats concrete surface until bleeding, firmly rubbing and pressure are smooth.
Tower crane concrete, which stays, sets 3 groups of test blocks, 1 group of maintaining test block with same condition, 1 group of 28d standard maintaining test block.
According to concrete foundation of tower crane engineering technology regulation (JGJ/T187-2009) it is found that when tower crane is installed, tower
80% or more design strength should be reached by hanging base concrete, tower crane operation in use, base concrete should to reach 100% design strong
Degree.
It is required according to " concrete structure engineering construction quality accident specification " (GB50204-2015) related content, concrete
The reserved test block maintenance time must not be less than 14 days.It finishes in 12 hours, concrete is covered, and moisturizing in concreting
Maintenance.Irrigation times should be able to keep concrete to be in moisture state, and concrete curing water should meet corresponding codes and standards.It is mixed
Before solidifying soil intensity reaches 1.2N/mm2, it must not trample on it.When daily mean temperature is lower than 5 DEG C, water seasoning must not be used.
It must reinforce concrete curing (generally 10~15 days) after the completion of tower crane concrete construction, guarantee concrete table
Face is wet until reaching expected intensity requirement.After the completion of concreting, written Shen is write out by section chief before carrying out next procedure
Please, it is checked through project quality testing department, next procedure can be carried out after project chief engineer signature.
It is provided according to " architectural engineering winter construction regulation " (JGJ 104-2011): all outdoors daily mean temperature continuous 5 days
Stablize and be lower than 5 DEG C, then this first day of 5 days is into the first day of winter construction；After weather turns warm, the last one 5 days day is flat
Equal temperature is stablized at 5 DEG C or more, then this 5 days last day is to apply all day in the winter.According to Nanjing Temperature records over the years, generally
The winter construction time is shorter and is stage early winter (temperature on average is 0 DEG C, and minimum temperature is stage early winter at -5 DEG C or so).When mixed
The solidifying soil winter applies the portland cement and ordinary portland cement for selecting the heat of hydration big, and strength of cement grade is not lower than 32.5, most
Small cement consumption should not be less than 300kg/m2, O.6 the ratio of mud should not exceed.Select the antifreezing agent of -15 DEG C of freeze proof limit.
8, tower crane support is embedded
1) to guarantee that the position of tower crane support is accurate, the support brandreth 7 of 4 700 × 700 × H (mm) prefabricated first, to
The pre-buried fixed supporting leg of tower crane is supported, 7 structure of brandreth such as Fig. 5 is supported.Surrounding support angle steel 6 must be by concrete foundation center line pair
Claim installation, and is mounted to square by tower body sectional dimension requirement.The form of surrounding support angle steel 6 are as follows: use ∠ 180 × 18
Or the surrounding support angle steel 6 of the components such as 200 × 16 angle steel of ∠ and 490 × 490 square steel plates composition, it is ensured that fish platee
Installation dimension 150mm.
To prevent support brandreth 7 to be displaced, brandreth 7 will be supported to weld with bar dowel integral, fix its position.It is pouring
During bottom plate, bracing wire to control its position.Such as Fig. 6, support the hole that 2 R of incision are 50 mm on the steel plate of brandreth 7 that can prevent
It floats when concreting.
Brandreth 7 is supported to place tolerance: absolute altitude 2mm；Center displacement of the lines 2mm；
Before being finished to base plate steel bar binding, the pre-embedded bolt of tower crane is placed on four support brandreths 7, levelling, error control
System is qualification 1 ‰.Support brandreth 7 and reinforcing bar spot welding secured.Surrounding sets up the pre-buried section 4 of fixed stent clamping tower crane, to control
System displacement.When concreting, monitoring measurement work is carried out.Standard knot verticality 1/1000.
The erection sequence of basic built-in fitting is as follows: installation built-in fitting → mounting fixing parts → adjustment built-in fitting position and fixation
→ casting concrete
9, lightning protection measure
After tower crane reinforcing bar is bound, two studs are vertically and horizontally led with column foot at tower crane two diagonal positions
Muscle welding, then welded the nonstandard section of tower crane and stud with 40 × 4mm zinc-coated flat steel sheet, ground resistance no more than 4 Ω, after pass through conducting wire
It is welded to connect that (it is deep that L50*5 angle steel squeezes into soil 2.5m, 3 face of distance from top concrete bearing platform with the 50 × 5mm angle steel for squeezing into ground
0.8m), to guarantee tower crane lightning protection.
10, steel pipe column construction technology
1) this engineering pipe column is Q235B steel pipe having a size of 426 × 10mm, and it is 10mm that weld seam, which is not specified, and insertion is bored
Hole stake depth is 3m, while casting concrete is high to sole plate top mark in steel pipe column.Steel pipe column 2 is inserted into 1 depth of bored concrete pile
Strict tolerances≤50mm is answered, 2 center line of steel pipe column and stake position centerline error≤10mm, perpendicularity deviation≤1/300
Excavation of foundation pit depth, for the control of this engineering perpendicularity deviation within 15mm.
2) steel pipe column 2 entrusts specialized factory to process outside the venue by owner, finished product transport is shown up interior.
3) steel pipe column 2 is hung using 25t truck crane, and suspension centre is located at 2 top of steel pipe column.Steel pipe column and steel reinforcement cage carry out
It is welded and fixed, fixed type steel tubing string must be positioned at steel reinforcement cage center.In welding process, crane hangs steel reinforcement cage 1.1 always, keeps away
Exempt from its stress.2 lower part of steel pipe column is welded together with steel reinforcement cage 1.1, sets hanging ring on 2 top of steel pipe column.Steel pipe column 2 is lifted into design
Behind position, two 100mm square steel of cross-arm hang steel pipe column 2, stablize in designed elevation position, prevent its floating.
4) earth excavation process, steel pipe column 2 abolish the plain concrete of outer layer covers, mark basic bottom on steel pipe column before constructing
Plate 8, the top plate 9 of two layers of underground, basement one top plate 9 thickness, seal plate 2.2 is welded at position among plate, such as Fig. 7, only
2.2 thickness 10mm wide 200mm of water plate.Throat depth is h/f >=10mm, and periphery is fully welded.
5) steel plate of 12mm thickness 700 × 700 is welded in 2 top opening portion of steel pipe column, steel plate diameter is the same as steel column diameter.Steel pipe column
Welding support rod 2.3 is needed between 2, is made of 22a channel steel material Q235.It is welded when construction when digging, i.e., earth excavation reserves work
Behind industry face, support rod 2.3 is welded immediately.
6) diagonal brace is all made of manual electric arc welding using weldering connection, channel steel and column welding is mutually passed through with steel pipe column 2, and weld seam should meet
The requirement of three-level weld seam, using E50 welding rod；All faces of weld should all do visual examination.Face of weld commissure there is not allowed that
It is mingled with, loose contracting, bubble, the bad phenomenons such as relaxation.
Tower crane is the construction operation of one and its emphasis safety, and construction survey should must ensure to measure accurate
Property, especially to the control of absolute altitude in work progress.Field technician and experiment, Quality Inspector march into the arena raw material because of strict control
Quality avoids losing.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of tower-crane foundation structure is set in foundation pit, it is characterised in that: the concrete of bored concrete pile (1), top including bottom
The steel pipe column (2) of cushion cap (3) and centre, the bored concrete pile (1) and steel pipe column (2) totally four, square setting；The steel pipe
Column (2) bottom insertion bored concrete pile (1) in, be welded and fixed with the steel reinforcement cage (1.1) in bored concrete pile (1), and setting put more energy into bind round into
Row is reinforced；It is protruded into concrete bearing platform (3) at the top of the steel pipe column (2), end setting steel deck-plate (2.1) is sealed；It is described
In concrete bearing platform (3), in steel pipe column (2) if top sets arterial highway surrounding support angle steel (6), it is arranged on the support angle steel (6)
Four support brandreths (7) arranged in square, the pre-buried supporting leg of the pre-buried section of tower crane (4) bottom are welded with support brandreth (7) respectively
Connect fixation.
2. a kind of tower-crane foundation structure according to claim 1, it is characterised in that: anchored at the top of the steel pipe column (2)
Concrete bearing platform (3) interior 1000mm, the depth that bottom is inserted into bored concrete pile (1) are 3000mm.
3. a kind of tower-crane foundation structure according to claim 1, it is characterised in that: the steel pipe column (2) if between be arranged
Arterial highway support rod (2.3), the support rod (2.3) include the surrounding support (2.31) of setting in horizontal circle one week and diagonal upper and lower
Four steel pipe column (2) drawknots are become a fixed entirety by the horizontal cross brace (2.32) stacked.
4. a kind of tower-crane foundation structure according to claim 1, it is characterised in that: the support brandreth (7) is four tables
Type frame, including top plate and supporting leg, the top plate are equipped with the preformed hole for preventing from floating when concreting；Four support brandreths
(7) it is welded between by bar dowel integral.
5. a kind of tower-crane foundation structure according to claim 1, it is characterised in that: the steel pipe column (2) protrudes into bored concrete pile
(1) additional bar (5) are arranged in the bottom in, and the additional bar (5) is real with steel pipe column (2) and steel reinforcement cage (1.1) welding respectively
Existing steel pipe column (2) and steel reinforcement cage (1.1) are connected.
6. a kind of tower-crane foundation structure according to claim 1, it is characterised in that: the effective length of the bored concrete pile (1)
Not less than 16m, diameter 0.8m, strength grade of concrete C30, fullness coefficient is not less than 1.1.
7. a kind of tower-crane foundation structure described in any one according to claim 1~6, it is characterised in that: the concrete is held
The cushion cap reinforcing bar of platform (3) is double-layer double-direction reinforcing bar, C22 200mm gluten, 200 bottom mm muscle of C20, quincuncial arrangement C16 600
Mm tension rib is 1500 mm split heads of C20@between gluten and bottom muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821021998.3U CN208717934U (en) | 2018-06-29 | 2018-06-29 | A kind of tower-crane foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821021998.3U CN208717934U (en) | 2018-06-29 | 2018-06-29 | A kind of tower-crane foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208717934U true CN208717934U (en) | 2019-04-09 |
Family
ID=65972311
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821021998.3U Expired - Fee Related CN208717934U (en) | 2018-06-29 | 2018-06-29 | A kind of tower-crane foundation structure |
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| CN (1) | CN208717934U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387899A (en) * | 2019-07-30 | 2019-10-29 | 宁波建工建乐工程有限公司 | A kind of fixed device of the pre-buried section of soft soil foundation large scale tower crane |
| CN110847213A (en) * | 2019-12-12 | 2020-02-28 | 天津天一建设集团有限公司 | Light steel cage type tower crane pedestal and assembly construction method |
| CN114837213A (en) * | 2022-05-23 | 2022-08-02 | 中国二十二冶集团有限公司 | Tower crane foundation structure and construction method thereof |
| CN115198787A (en) * | 2022-07-19 | 2022-10-18 | 中铁建工集团有限公司 | Steel pipe column type tower crane foundation, construction method thereof and cover-excavation top-down construction method |
-
2018
- 2018-06-29 CN CN201821021998.3U patent/CN208717934U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387899A (en) * | 2019-07-30 | 2019-10-29 | 宁波建工建乐工程有限公司 | A kind of fixed device of the pre-buried section of soft soil foundation large scale tower crane |
| CN110387899B (en) * | 2019-07-30 | 2021-05-11 | 宁波建工建乐工程有限公司 | Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation |
| CN110847213A (en) * | 2019-12-12 | 2020-02-28 | 天津天一建设集团有限公司 | Light steel cage type tower crane pedestal and assembly construction method |
| CN114837213A (en) * | 2022-05-23 | 2022-08-02 | 中国二十二冶集团有限公司 | Tower crane foundation structure and construction method thereof |
| CN115198787A (en) * | 2022-07-19 | 2022-10-18 | 中铁建工集团有限公司 | Steel pipe column type tower crane foundation, construction method thereof and cover-excavation top-down construction method |
| CN115198787B (en) * | 2022-07-19 | 2023-10-27 | 中铁建工集团有限公司 | Steel tube column type tower crane foundation and construction method thereof, and cover-excavation reverse construction method |
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