CN209260748U - A kind of stepped tower crane - Google Patents
A kind of stepped tower crane Download PDFInfo
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- CN209260748U CN209260748U CN201821944909.2U CN201821944909U CN209260748U CN 209260748 U CN209260748 U CN 209260748U CN 201821944909 U CN201821944909 U CN 201821944909U CN 209260748 U CN209260748 U CN 209260748U
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Abstract
The utility model relates to a kind of stepped tower cranes, stepped tower crane includes lower rank basis and upper rank basis, upper rank height of foundation is identical as basement sole plate thickness, lower rank basis anchors into 4 group of three pile framing of proposed object, as the tower crane stake for tower crane, upper rank basis and lower rank reinforcement foundation double-layer double-direction arrange that mutual drawknot, upper rank reinforcement foundation anchor into basement sole plate, combine together with basement sole plate.Lower rank basis instead of proposed basement structure basis 4 three pile framings and 4 foundation beams, and save the construction time of tower crane stake, three pile framings, foundation beam, accelerate construction in later period speed, it combines together after the completion of tower crane construction simultaneously with proposed object basement sole plate, it is removed compared with traditional tower crane without the later period, has saved construction cost.
Description
Technical field
The utility model relates to building engineering construction fields, and in particular to a kind of stepped tower crane is suitable for tower crane
Basis instrument is within the scope of basement bottom board, and engineering pile is designed as the engineering of cast-in-situ bored pile.
Background technique
It is traditional using pile foundation as reference Fig. 7 of tower crane, it usually needs in addition design and construct tower crane stake, stake
Construction cost it is larger, tower crane cushion cap is generally rectangular, tower crane positioning after, with basement floor constructions intersection
The reinforcing bar of advance reservation embedded foundation beam and raft plate is needed, pre-buried amount is big, and the lap joint that is staggered is needed between reinforcing bar, causes
It excavates tower crane and needs to expand outward in former tower crane size the pre-buried length of reinforcing bar in the process, increase the earthwork and open
Digging amount, and the foundation beam of advance reservation and raft slab muscle are easy corrosion and by soil pollution, therefore are badly in need of a kind of economy in the industry
Benefit is evident and tower crane easy for construction.
Utility model content
The purpose of this utility model is to provide a kind of stepped tower cranes, and compared with traditional rectangle cushion cap, this is practical
Novel tower crane is rationally using proposed engineering pile of building instead of tower crane stake, to save tower crane pile driving construction cost, economic benefit
Significantly, while the utility model tower crane shape is in stepped, is second order basis, lower rank basis in basement bottom board hereinafter, on
Rank basis is a part of basement bottom board, and thickness is with basement sole plate thickness, upper rank base after the completion of concreting
Plinth combines together with lower rank basis.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of stepped tower crane, including lower rank basis and upper rank basis, lower rank key dimension are 12m × 12m, lower rank base
Plinth height is 0.8m, and upper rank basis is 7m × 7m, and upper rank height of foundation is that 0.6m is identical as basement sole plate thickness, described
Lower rank basis be laid on 4 group of three pile framing top of proposed object, be by 12 diameters used in 4 three pile framings of proposed object
The engineering pile of 800mm anchors into lower rank basis as the tower crane stake for tower crane；Structural column is implanted into lower rank basis, and uniformly
It is distributed in three pile framing center, lower rank basis upper reinforcement and lower rank basic infrastructure reinforcing bar are 200mm water according to spacing
Two-way laying is put down, is the grade III steel of diameter 25mm, is connected between lower rank basis upper reinforcement and lower rank basic infrastructure reinforcing bar
Lacing wire, lacing wire are 600mm arrangement according to spacing, are the grade III steel of diameter 14mm, and tower crane supporting leg is buried in advance in rank basis；Upper rank base
Plinth reinforcing bar and basement sole plate reinforcing bar are 200mm horizontal duplex bidirectional arrangements according to spacing, are the three-level of diameter 20mm
Steel, upper rank reinforcement foundation are embedded to upper rank foundation and are greater than 640mm, exceed upper rank basis side part 640mm, are used for and underground
The linking of chamber base baseplate reinforcing bar, also embedded steel plate for sealing water between upper rank basis top surface and bottom surface, lacing wire is by upper rank basis upper steel
Muscle and lower rank basic infrastructure reinforcing bar drawknot, lacing wire are 600mm arrangement according to spacing, make rank basis and lower rank basis drawknot at one
A entirety, additional bar use the grade III steel of diameter 20mm, and additional bar is close to lower rank basic infrastructure reinforcing bar upper surface, in upper rank
Basic and lower rank base step line two sides are laid with, and are 400mm arrangement by spacing, and additional bar length is 3m.
A kind of above stepped tower crane, it is preferable that when the tower crane height of landing leg is greater than stepped tower crane height,
Tower crane supporting leg is fixed with lower rank basic infrastructure reinforcement welding；When the tower crane height of landing leg is less than stepped tower crane height, tower
Supporting leg lower part is hung to fix by spacer bar and lower rank basic infrastructure reinforcement welding.
Above a kind of stepped tower crane, it is preferable that every group of three pile framings are made of 3 engineering piles, described
Structural column is implanted in 3 engineering pile center, and the structural column is uniformly distributed in rank basis surrounding.
A kind of the characteristics of stepped tower crane, is: rationally also serving as tower crane stake using proposed object engineering pile, is not necessarily in addition again
Construction tower crane stake, and be a part of basement sole plate by upper rank basis instrument, lower rank basis covers and instead of quasi-
The foundation beam between 4 three pile framings of 4 three pile framings and connection of object is built, has saved cost, and tower crane to greatest extent
It is not necessarily to separately remove after the completion of foundation construction, has saved dismounting and the transportation cost of tower crane, remarkable in economical benefits.
Compared with prior art, the advantages of the utility model and beneficial effect is:
(1) 12 engineering piles have been anchored into rank type tower crane, and in situ instead of the 4 of proposed basement structure basis
A three pile framing and 4 foundation beams, save the construction time of tower crane stake, three pile framings, foundation beam, accelerate construction in later period speed
Degree, while combining together after the completion of tower crane construction with proposed object basement sole plate, compared with traditional tower crane
It is removed without the later period, has saved construction cost.
(2) the utility model also serves as tower crane stake using 12 proposed object engineering piles, forms clump of piles raft foundation, while basis
Tower crane parameter on former tower crane specification, and consider basement sole plate, pile framing and basis within the scope of tower crane
The arrangement of reinforcement of beam carries out Reinforcement Design to tower crane again, and it is safe and reliable to meet design requirement structure type through checking computations.
(3) foundation design of tower crane is rank type, the reinforcing bar reserved in upper rank basic scope, all in lower rank by the utility model
It in basic scope, avoids reserved steel bar and is contacted with the soil body, effectively prevent reinforcing bar pollution, and pre-buried in lower rank basic scope
There are 4 frame columns, without the embedded foundation beam in tower crane construction, reduces the pre-buried amount of reinforcing bar, while decreasing the earthwork
Excavate range.
(4) the utility model construction is convenient, creates good operating condition for construction in later period docking, accelerates construction speed
Degree, remarkable in economical benefits have a large promotion value.
Detailed description of the invention
A kind of stepped tower-crane foundation structure front view of Fig. 1；
Front view after the completion of a kind of stepped tower crane concreting of Fig. 2；
Top view after the completion of a kind of stepped tower crane concreting of Fig. 3；
A kind of stepped proposed object engineering pile distribution schematic diagram of tower crane of Fig. 4；
A kind of stepped tower crane waterproof construction schematic diagram of Fig. 5.
Fig. 6 basement bottom board base concrete pours completion figure
Fig. 7 original designs cushion cap and foundation beam structural schematic diagram
In figure: 1, upper rank basis, 2, lower rank basis, 3, steel plate for sealing water, 4, upper rank basis upper reinforcement a, 5, upper rank basis
Lower rebar a, 6, lower rank basis upper reinforcement b, 7, lower rank basic infrastructure reinforcing bar b, 8, additional bar, 9, structural column, 10, lacing wire
A, 11, lacing wire b, 12, bed course, 13, stepped tower crane, 14, tower crane waterproof roll, 15, sole plate waterproof roll,
16, waterproof slab protective layer, 17, engineering pile, 18, tower crane supporting leg, 19, spacer bar, 20, three pile framings, 21, foundation beam, 22,
Engineering pile reinforcing bar 22,23, basement sole plate.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
With reference to Fig. 3, for the utility model embodiment by taking 8m axis net as an example, structural column 9 is located at axis intersection, the utility model
With reference to Fig. 6, the net that the basement sole plate 23 is made of with a thickness of 0.6m, axis net building axis line, is artificially
The detailed dimensions of component are indicated in architectural drawing.
The utility model tower crane is identical as basement sole plate concrete strength by taking C35 as an example, basement antidetonation
Grade is illustrated by taking level Four as an example.
The tower crane embodiment of the utility model is designed by taking Zhong Lianchong section TC7020 tower crane as an example, with reference to figure
2 and Fig. 6, corresponding tower crane carries out Deepen Design having a size of 7m × 7m × 1.4m on its basis in tower crane specification, this
Having a size of 12m × 12m, basic 2 height of lower rank are 0.8m on rank basis 2 under utility model, and upper rank basis 1 is 7m × 7m, upper rank base
1 height of plinth is that 0.6m is identical as 23 thickness of basement sole plate.
With reference to Fig. 4, lower rank basis 2 covers 12 engineering piles, and replaces embedded foundation beam 21 and three pile framings 20, reference
Fig. 7, the checking computations of three pile framing pile bearing capacitys are as follows: replacement calculating is carried out to proposed object engineering pile 17, it will be in three pile framings
3Engineering pile 17 (the sum of sectional area is 1.507 ㎡) replacement be 1 1.2m × 1.2m square pile (section
Product be 1.44 ㎡), i.e., using within the scope of tower crane 12 engineering piles 17 replacement be 4 1.2m square pile as tower crane stake into
Row checking computations, checking computation results meet requirement for bearing capacity.
Embodiment 1
Each three pile framing 20 is made of 3 proposed object engineering piles 17, amounts to 12 proposed object engineering piles 17, proposed object work
Journey stake 17 is cast-in-situ bored pile, diameter 800mm.With reference to Fig. 1~2,17 reinforcing bar of engineering pile is anchored under ladder tower crane 13
In rank basis 2, length is shown in practice of construction drawing.
Tower crane supporting leg 18 is the built-in fitting of tower crane 13, after the completion of lower rank basic infrastructure reinforcing bar b7 construction, is placed on
Rebar surface, and be welded and fixed, the specific height of tower crane supporting leg 18 need to be depending on producer and tower crane model, if tower crane supporting leg 18 is high
Degree is less than 13 height of stepped tower crane, need to be in 18 following settings spacer bar 19 of tower crane supporting leg, such as Fig. 1, by tower crane supporting leg 18
It is raised to specified altitude assignment, the usual pre-buried 4 tower crane supporting legs 18 of a tower crane, referring in particular to the corresponding specification of tower crane.This is practical
Novel middle spacer bar 19 is illustrated so that diameter is the grade III steel of 16mm as an example.
It is implanted with steel plate for sealing water 3 between the top surface and bottom surface on upper rank basis 1, prevents stepped tower crane and underground chamber base
Bottom slab concreting seeps water at after an entirety in seam crossing.Lower rank basis upper reinforcement b6 and lower rank basic infrastructure reinforcing bar b7 are equal
It is the laying of 200mm horizontal bidirectional according to spacing, uses diameter for 25 grade III steel, lower rank basis upper reinforcement b6 and lower rank are basic
Lacing wire a10 is connected between lower rebar b7, lacing wire a10 is 600mm arrangement according to spacing, uses diameter for the three-level of 14mm
Steel；Upper rank basis upper reinforcement a4 and upper rank basic infrastructure reinforcing bar a5 and basement sole plate are 200mm water according to spacing
Two-way laying is put down, uses diameter for the grade III steel of 20mm, between upper rank basis upper reinforcement a4 and lower rank basic infrastructure reinforcing bar b7
It is connected with lacing wire b11, lacing wire b11 is 600mm arrangement according to spacing, using the grade III steel of diameter 14mm；Additional bar 8 is using straight
The grade III steel of diameter 20mm, additional bar 8 is close to the upper surface lower rank basic infrastructure reinforcing bar b7, on upper rank basis 1 and basic 2 ranks of lower rank
Terraced line two sides are laid with, and are 400mm arrangement by spacing, 8 length of additional bar is 3m, for reinforcing stepped 13 ladder of tower crane
Shearing strength at line.
As Figure 1-Figure 5, a kind of stepped tower crane 13, including lower rank basis 2 and upper rank basis 1, reference Fig. 5, under
Rank basis 2 is laid on 4 group of three pile framing top of proposed object, by 12 engineering piles 17 used in 4 three pile framings of proposed object
Lower rank basis 2 is anchored into, as the tower crane stake for tower crane, referring to Fig. 3, structural column 9 is embedded into lower rank basis 2, lower rank base
Plinth upper reinforcement b6 and the two-way laying of lower rank basic infrastructure reinforcing bar b7, the reinforcing bar of structural column 9 is in tower crane reinforcement construction process
In reserve in place.Basic 1 reinforcing bar of upper rank arranges that steel-bar arrangement is different with 23 reinforcing bar of basement sole plate using double-layer double-direction
In lower rank basis 2, upper rank basis upper reinforcement a4 and upper rank basic infrastructure reinforcing bar a5 do not do end socket processing, and have and exceed upper rank
The straight anchor of basic 1 side one anchorage length, convenient for being connected with 23 reinforcing bar of basement sole plate.Rank base in lacing wire b11 connection
Plinth upper reinforcement a4 and lower rank basic infrastructure reinforcing bar b7 is by upper rank basis 1 and basic 2 drawknots of lower rank at an entirety.
A kind of the characteristics of stepped tower crane 13, is: rationally tower crane stake is also served as using proposed object engineering pile 17, without another
Outer tower crane stake of constructing again, lower rank basis 2 is instead of the foundation beam between 4 three pile framings and 4 three pile framings of proposed object, most
Limits have saved construction cost, and a part of basement sole plate 23 is become after the completion of 1 construction of upper rank basis.
With traditional tower crane that is separately provided, and tower crane is laid on basement sole plate or more；Or it uses
High pile tower crane is basic (tower crane is more than basement roof), nothing after the completion of the stepped tower crane 13 of the utility model is constructed
It need to separately remove, save dismounting and the transportation cost of tower crane, remarkable in economical benefits.
Specific step is as follows when a kind of stepped tower crane construction of the utility model:
(1) rank reinforcement foundation is constructed under tower crane:
12 engineering piles 17 are carried out first after the completion of tower crane earth excavation to cut stake, cut engineering pile reinforcing bar 22 after stake
Exposed, then casting concrete bed course 12, then rank basic infrastructure reinforcing bar b7 under two-way laying, straight with 12 engineering pile reinforcing bars 22
It anchors into lower rank basis 2, then tower crane supporting leg 18 is weldingly fixed on lower rank basic infrastructure reinforcing bar b7, if tower crane supporting leg 18 is high
Degree is less than stepped tower crane 13, need to first be laid with spacer bar 19, and spacer bar 19 and lower rank basic infrastructure reinforcing bar b7 are welded
It is fixed, then tower crane supporting leg 18 is placed on spacer bar 19 and is welded and fixed.On upper rank basis 1 and the basic 2 stepped line ranks of lower rank
Four side bidirectional arrangements additional bar 8 at terraced line, perpendicular to the lower preset lacing wire a10 of rank basic infrastructure reinforcing bar b7, then under two-way laying
Rank basis upper reinforcement b6, lower rank basis upper reinforcement b6 and lower rank basic infrastructure reinforcing bar b7 do end socket processing, bend 15d,
Wherein d is bar diameter.
(2) rank reinforcement foundation is constructed on tower crane:
Rank basic infrastructure reinforcing bar a5 first in bidirectional arrangements, upper rank basic infrastructure one end reinforcing bar a5 are embedded in upper rank basis 1,
Its length is set as 32d (long 640mm), the other end is exposed to outside rank basis 1, length referring to the flat Fatou set of 16G101-3
It referring to the flat Fatou set of 16G101-3, is set as 32d (long 640mm), i.e., every upper rank basic infrastructure reinforcing bar a5 length is 1280mm.
Then it is outer that rank basis upper reinforcement a4 in bidirectional arrangements, upper rank basis upper reinforcement a4 stretch out at both ends rank basis
Side, length are set as 32d (long 640mm) referring to the flat Fatou set of 16G101-3, i.e., every upper rank basis upper reinforcement a4 length
For 7000mm (upper rank basis single side size)+2 × 640mm=8280mm.
The lower rank basic infrastructure reinforcing bar b7 and upper rank basis upper reinforcement a4 of lacing wire b11 connection, basic 1 top surface of upper rank and bottom surface
Between bury steel plate for sealing water 3.
(3) tower crane waterproof construction:
Using full bonding paving tower crane waterproof roll 14, tower crane base after the completion of 12 concreting of tower crane bed course
Plinth waterproof roll 14 also reserves 1000mm long, and retain tower crane waterproof roll for after the completion of the side wall paving of tower crane 13
Isolation film above material 14, after the completion of basement sole plate bed course 12 pours, by 1000mm long tower crane base reserved before
Then the fold of plinth waterproof roll 14 overlaps with sole plate waterproof roll 15 to 12 face of sole plate bed course, finally pours basis
Waterproof slab protective layer 16, at this time basic 2 either flush of rank under 16 surface of sole plate waterproof protective layer and tower crane.
Claims (3)
1. a kind of stepped tower crane, including lower rank basis and upper rank basis, lower rank key dimension are 12m × 12m, lower rank basis
Height is 0.8m, and upper rank basis is 7m × 7m, which is characterized in that upper rank height of foundation is 0.6m and basement sole plate thickness
Identical, the lower rank basis is laid on 4 group of three pile framing top of proposed object, will be used in 4 three pile framings of proposed object
The engineering pile that 12 diameters are 800mm anchors into lower rank basic (2) as the tower crane stake for being tower crane；Structural column is implanted into lower rank
In basis, and be uniformly distributed in three pile framing center, lower rank basis upper reinforcement and lower rank basic infrastructure reinforcing bar according to
Spacing is the laying of 200mm horizontal bidirectional, is the grade III steel of diameter 25mm, lower rank basis upper reinforcement and lower rank basic infrastructure steel
Lacing wire is connected between muscle, it is the grade III steel of diameter 14mm, tower crane supporting leg buries rank in advance that lacing wire, which is 600mm arrangement according to spacing,
In basis；Upper rank reinforcement foundation and basement sole plate reinforcing bar are 200mm horizontal duplex bidirectional arrangements according to spacing, are straight
The grade III steel of diameter 20mm, upper rank reinforcement foundation are embedded to upper rank foundation and are greater than 640mm, exceed upper rank basis side part
640mm, for being connected with basement sole plate reinforcing bar, also embedded steel plate for sealing water, lacing wire between upper rank basis top surface and bottom surface
By upper rank basis upper reinforcement and lower rank basic infrastructure reinforcing bar drawknot, lacing wire is that 600mm is arranged according to spacing, make rank basis and
Lower rank basis drawknot uses the grade III steel of diameter 20mm at an entirety, additional bar, and additional bar is close to lower rank basic infrastructure
Reinforcing bar upper surface is laid on upper rank basis and lower rank base step line two sides, is 400mm arrangement, additional bar length by spacing
For 3m.
2. a kind of stepped tower crane according to claim 1, which is characterized in that the tower crane height of landing leg is greater than stepped
When tower crane height, tower crane supporting leg is fixed with lower rank basic infrastructure reinforcement welding；The tower crane height of landing leg is less than stepped tower
When hanging height of foundation, tower crane supporting leg lower part is fixed by spacer bar and lower rank basic infrastructure reinforcement welding.
3. a kind of stepped tower crane according to claim 1, which is characterized in that every group of three pile framings are by 3
Engineering pile composition, the structural column are implanted in 3 engineering pile center, and the structural column is uniformly distributed in rank basis
Surrounding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821944909.2U CN209260748U (en) | 2018-11-24 | 2018-11-24 | A kind of stepped tower crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821944909.2U CN209260748U (en) | 2018-11-24 | 2018-11-24 | A kind of stepped tower crane |
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| CN209260748U true CN209260748U (en) | 2019-08-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577359A (en) * | 2018-11-24 | 2019-04-05 | 武汉建工集团股份有限公司 | A kind of stepped tower crane and construction method |
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2018
- 2018-11-24 CN CN201821944909.2U patent/CN209260748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577359A (en) * | 2018-11-24 | 2019-04-05 | 武汉建工集团股份有限公司 | A kind of stepped tower crane and construction method |
| CN109577359B (en) * | 2018-11-24 | 2024-03-19 | 武汉建工集团股份有限公司 | Stepped tower crane foundation and construction method |
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