CN111362155A - Tower crane attachment device - Google Patents

Tower crane attachment device Download PDF

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Publication number
CN111362155A
CN111362155A CN202010271549.XA CN202010271549A CN111362155A CN 111362155 A CN111362155 A CN 111362155A CN 202010271549 A CN202010271549 A CN 202010271549A CN 111362155 A CN111362155 A CN 111362155A
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China
Prior art keywords
connecting rod
tower crane
main building
fixedly connected
hoop
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CN202010271549.XA
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Chinese (zh)
Inventor
张洪伍
冯刚
刘明祥
谢福美
孙凯
张道贺
秦一飞
金锐
刘秉乾
闵芳香
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China Construction Fifth Engineering Bureau Co Ltd
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China Construction Fifth Engineering Bureau Co Ltd
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Priority to CN202010271549.XA priority Critical patent/CN111362155A/en
Publication of CN111362155A publication Critical patent/CN111362155A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/203—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided by posts, e.g. scaffolding, trees or masts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention provides a tower crane attachment device which comprises a standard joint attachment frame, four connecting rods and two groups of hoop components, wherein the standard joint attachment frame is fixed between two sections of standard joint arms of a tower crane, the two groups of hoop components are respectively matched with two concrete columns on one side, close to the tower crane joint arms, of a main building, the hoop components comprise two embracing plates and a plurality of fixing bolts, and the two embracing plates are fixedly connected through the plurality of fixing bolts; four two liang of connecting rods are a set of, and two sets of connecting rods correspond with two sets of staple bolt subassemblies, and every group staple bolt subassembly is fixed with standard festival adhesion frame through a set of connecting rod. The two groups of hoop components are matched with the concrete column of the main building, so that the tower crane and the main building are connected and fixed, and after the subsequent main building is finished, only the hoop components need to be disassembled, so that the surface of the main building cannot be damaged, and the subsequent water leakage problem is avoided; the fixed structure of the four connecting rods and the distribution positions of the four connecting rods strengthen the stability of connection between the attachment frame and the main building.

Description

Tower crane attachment device
Technical Field
The invention relates to a tower crane attachment device.
Background
The tower crane is the most common hoisting equipment in construction sites, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. Among the prior art, the tower crane passes through multiunit tower crane attachment device and is fixed with the main part, every group tower crane attachment device's attached frame and three pull rod cooperation realize being connected fixedly with the main part building, attached frame sets up between two standard festival arms of fixed elevation, it is fixed with attached frame that the bolt is passed through to pull rod one end, the pull rod other end is connected fixedly through pre-buried bolt and main part building, nevertheless the quantity of current pull rod is three, the stability of tower crane lacks, in addition, at the pre-buried bolt in main part building surface, follow-up main part building completion back, can cause quality problems such as pre-buried position leaks.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tower crane attachment device which is stable in structure and can be flexibly disassembled.
In order to solve the technical problem, the invention provides a tower crane attachment device which comprises a standard joint attachment frame, wherein the standard joint attachment frame is fixed between two standard joint arms of a tower crane;
the device comprises four connecting rods and two groups of hoop components;
the two groups of hoop components are respectively matched with two concrete columns on one side, close to the tower crane knuckle arm, of the main building, each hoop component comprises two holding plates and a plurality of fixing bolts, the two holding plates are respectively attached to two sides of the concrete columns of the main building, the two holding plates are fixedly connected through the fixing bolts, and the horizontal heights of the two groups of hoop components are consistent;
the four connecting rods are respectively a first connecting rod and a second connecting rod, the third connecting rod and the fourth connecting rod correspond to one group of hoop components, the third connecting rod and the fourth connecting rod correspond to the other group of hoop components, one end of the first connecting rod is fixedly connected with the near-angle position of the standard knot attaching frame close to one side of the main building, the other end of the first connecting rod is fixedly connected with the corresponding hoop component, one end of the second connecting rod is fixedly connected with the far-angle position of the standard knot attaching frame close to one side of the main building, the other end of the second connecting rod is fixedly connected with the corresponding hoop component, one end of the third connecting rod is fixedly connected with the near-angle position of the side wall of the standard knot attaching frame, the other end of the third connecting rod is fixedly connected with the corresponding hoop component, one end of the fourth connecting rod is fixedly connected with the far-angle position of the side wall of the standard knot attaching frame, and the other end of the fourth connecting rod is fixedly.
After the structure is adopted, the two groups of hoop components are matched with the concrete column of the main building, so that the connection and fixation between the tower crane and the main building are realized, after the subsequent main building is finished, the connection between the tower crane and the main building can be removed only by dismounting the hoop components, the surface of the main building is not damaged, and the subsequent water leakage problem is avoided;
in addition, the stability of being connected between attachment frame and the main body building has been strengthened to the fixed knot structure of four connecting rods and distribution position each other, and the security that tower crane and main body building are fixed can be improved more than current three connecting rod connection structure.
In order to more clearly understand the technical content of the invention, the tower crane attachment device is simply referred to as the attachment device below.
The four connecting rods of the attachment device have the same structure, each connecting rod comprises a first lug plate, a first threaded sleeve, a second lug plate and a double-threaded screw, the first lug plate is fixedly connected to the first threaded sleeve, the second lug plate is fixedly connected to the second threaded sleeve, and the first threaded sleeve and the second threaded sleeve are respectively matched with the double-threaded screw; after adopting such structure, can adjust double-threaded screw and stretch into first threaded sleeve pipe or second threaded sleeve pipe's length, reach the purpose of carrying out nimble fine setting to connecting rod length, make things convenient for this attachment's assembly operation.
82-86 degrees are formed between the first connecting rod of the attachment device and the side face of the main building close to one side of the joint arm of the tower crane; the angle between the second connecting rod and the side face of the main building close to one side of the joint arm of the tower crane is 60-65 degrees; 40-45 degrees are formed between the third connecting rod and the side face of the main building close to one side of the tower crane knuckle arm; 52-56 degrees are formed between the fourth connecting rod and the side face of the main building close to one side of the tower crane knuckle arm; after the structure is adopted, the arrangement positions and the angle parameters of the four connecting rods are more specific, and the stability of the attachment device is further improved.
Drawings
FIG. 1 is a top view of an embodiment of the present attachment apparatus.
FIG. 2 is a schematic structural view of a link according to an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a of fig. 1.
Detailed Description
As shown in fig. 1 to 3
The attachment device comprises a standard knot attachment frame 1, four connecting rods and two groups of hoop assemblies.
The standard knot attachment frame 1 is a commercially available standard knot attachment frame 1, and the standard knot attachment frame 1 is fixed between two standard knot arms of the tower crane.
The two groups of hoop components are respectively a first hoop component 2 and a second hoop component 3, the structures of the first hoop component 2 and the second hoop component 3 are the same, the structure of the hoop component is specifically described by taking the first hoop component 2 as an example, the first hoop component 2 comprises two holding plates 21 and six fixing bolts 22, the two holding plates 21 are respectively attached to two sides of a concrete column 8 of a main building, the two holding plates 21 are connected and fixed through the six fixing bolts 22, and a third lug plate 23 is welded on one holding plate 21;
first staple bolt subassembly 2 and second staple bolt subassembly 3 cooperate with two concrete columns 8 that the main part building is close to tower crane knuckle arm one side respectively, and arrange about first staple bolt subassembly 2 and second staple bolt subassembly 3 respectively, and the level height of first staple bolt subassembly 2 and second staple bolt subassembly 3 is unanimous.
The four connecting rods are of the same structure, the four connecting rods are respectively a first connecting rod 4, a second connecting rod 5, a third connecting rod 6 and a fourth connecting rod 7, the first connecting rod 4 is taken as an example, the first connecting rod 4 comprises a first lug plate 41, a first threaded sleeve 42, a second threaded sleeve 43, a second lug plate 44 and a double-headed screw 45, the first threaded sleeve 42 and the second threaded sleeve 43 are of a square pipe structure, threads are arranged on the inner hole walls of the first threaded sleeve 42 and the second threaded sleeve 43, the first lug plate 41 is welded on the first threaded sleeve 42, the second lug plate 44 is welded on the second threaded sleeve 43, and the first threaded sleeve 42 and the second threaded sleeve 43 are matched with the double-headed screw 45 respectively.
The first connecting rod 4 and the second connecting rod 5 correspond to the first hoop component 2, the third connecting rod 6 and the fourth connecting rod 7 correspond to the second hoop component 3, one end of the first connecting rod 4 is fixed with an ear plate close to the position of the near corner of the standard knot attachment frame 1 on one side of the main building through a bolt, the other end of the first connecting rod 4 is fixed with a third ear plate 23 of the first hoop component 2 through a bolt, one end of the second connecting rod 5 is fixed with an ear plate close to the position of the far corner of the standard knot attachment frame 1 on one side of the main building through a bolt, the other end of the second connecting rod 5 is fixed with a third ear plate 23 of the first hoop component 2 through a bolt, one end of the third connecting rod 6 is fixed with an ear plate at the position of the side wall of the standard knot attachment frame 1 through a bolt, the other end of the third connecting rod 6 is fixed with the second hoop component 3 through a bolt, one end of the fourth connecting rod 7 is fixed with an ear plate at the position, the other end of the fourth connecting rod 7 is fixed with the second hoop component 3 through a bolt.
The inclination angle α between the first connecting rod 4 and the side face of the main building close to the tower crane knuckle arm side is 84 degrees, the inclination angle β between the second connecting rod 5 and the side face of the main building close to the tower crane knuckle arm side is 63 degrees, the inclination angle gamma between the third connecting rod 6 and the side face of the main building close to the tower crane knuckle arm side is 41 degrees, and the inclination angle delta between the fourth connecting rod 7 and the side face of the main building close to the tower crane knuckle arm side is 54 degrees.
The wall-attached force calculation of this embodiment is as follows:
a) parameter information;
the height of the tower crane is 98.80(m), the side length of the attached tower crane is 2.00(m), the maximum overturning moment of the attached tower crane is 4981.60(kN/m), the width of an attached frame is 2.40(m), the revolving torque is 300.00(kN/m), the design value of wind load is 0.5(kN/m), and the attached height of each layer is 42.1 and 63.1(m) respectively.
b) Calculating the seating force;
when the tower crane is attached to a building according to the specification, the load of the uppermost attachment device is the largest, and therefore the load of the connecting rod is used as the basis for designing or checking the section of the attachment rod.
The tower body of the attached tower crane can be regarded as a rigid support continuous beam with a cantilever, and the internal force and the support counter force are calculated as follows:
wherein:
W0basic wind pressure (kN/m2) according to the building structure load code (GBJ9) regulation: w0＝0.4kN/m2；
μz-the coefficient of variation of wind load height, adopted according to the regulations of building structure load codes (GBJ 9): mu.sz＝2.380；
μs-wind load shape factor: mu.ss＝2.600；
βz-wind vibration coefficient, according to the formula specification of the wind vibration coefficient of the structure at the Z height of building structure load specification, calculating βz＝1.1；
Wk-wind load horizontal pressure;
Wk＝W0×μz×μs×βz＝0.4×2.38×2.6×1.1＝2.72kN/m2(ii) a B-the width of the tower crane, B is 2.00 m; ks-reduction coefficient of frontal area, Ks＝0.20；
Calculating to obtain the horizontal acting force of the wind load; and the actual value q of the wind load is 0.5kN/M, the maximum overturning moment M of the tower crane is 4981.60kN.m, and the calculation result is that Nw is 260.379 kN.
c) Attachment rod internal force calculation
The above calculation process cycles θ from 0-360 degrees, solving for the maximum shaft pressure per link, maximum shaft tension:
the maximum axial tension of the third link 6 is: 221.5 kN; the maximum axial pressure of the third connecting rod 6 is: 221.5 kN;
the maximum axial tension of the fourth link 7 is: 273.0 kN; the maximum axial pressure of the fourth link 7 is: 273.0 kN;
the maximum axial tension of the first link 4 is: 416.0 kN; the maximum axial pressure of the first link 4 is: 416.0 kN;
the maximum axial tension of the second link 5 is: 353.0 kN; the maximum axial pressure of the second connecting rod 5 is: 353.0 kN.
d) And (4) checking and calculating the strength of the attaching rod:
the attachment pull rod adopts a 200 × 200 × 6 square tube, and the section size is 200 × 200 × 6;
the connecting rod section characteristics are as follows:
A＝46.56cm2，Ix＝2923.35cm4；
Figure BDA0002443328570000051
the unit weight is as follows: 36.55 Kg/m.
1) And (3) stress analysis:
a. shaft tension, shaft pressure.
b. The first connecting rod 4 is selected to be pulled, the length of the first connecting rod is 4.14m, the stress is the largest, and N is 416.0 KN.
c. Wind load;
wind load calculation formula-Fw＝CwpwA；
In this example,/h is 4140/200 ═ 20.7, and C is takenW＝1.75；
This example takes pw＝1100Pa；
The vertical windward area A is 4.14 × 0.20.20;
FW＝CWPWA＝1.75×1.1×4.14×0.20＝1.59KN；
this force acts on the connecting rod and manifests as a horizontal bending moment:
M1＝FWl/10＝0.66KN·m。
d. the dead weight of the connecting rod;
the force acts on the connecting rod as a vertical bending moment when G4.14 × 36.55 × 9.8.8 KN 1.48 KN:
M2＝Gl/10＝0.613KN·m。
e. connecting rod strength check
According to the formula
Figure BDA0002443328570000061
Accounting; gamma rayx＝γy＝1.05；
Figure BDA0002443328570000062
Therefore, the strength of the connecting rod meets the requirement.
2) Checking the compression stability;
checking the axial compression strength of the connecting rod by a checking formula: σ N/(φ A)n)≤[σ]；
Wherein:
sigma-is the compressive stress of the connecting rod;
n-is the maximum axial tension of the connecting rod;
the fourth connecting rod 7 takes N as 273.0 kN; the first connecting rod 4 takes N as 416.0 kN;
phi-is the compression stability coefficient of the connecting rod, and can be obtained by looking up a table according to the value of lambda, wherein lambda is the slenderness ratio of the connecting rod;
slenderness ratio calculation formula:
Figure BDA0002443328570000071
the length l of the fourth link 7 is 8677mm,calculating to obtain:
Figure BDA0002443328570000072
looking up a table according to lambda to obtain a stability coefficient phi of 0.499;
according to the calculation formula:
σ＝N/(φ·An)＝273×1000/0.499/4656＝117.5Mpa≤[σ]＝170MPa；
meets the requirements.
The first link 4 length l is 4140mm calculated as:
Figure BDA0002443328570000073
looking up a table according to lambda to obtain a stability coefficient phi 0.847;
according to the calculation formula:
σ＝N/(φ·An)＝416×1000/0.847/4656＝105.4Mpa≤[σ]＝170MPa
meets the requirements.
The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as falling within the protection scope of the present invention.

Claims (3)

1. A tower crane attachment device comprises a standard joint attachment frame, wherein the standard joint attachment frame is fixed between two standard joint arms of a tower crane;
it is characterized in that:
the device comprises four connecting rods and two groups of hoop components;
the two groups of hoop components are respectively matched with two concrete columns on one side, close to the tower crane knuckle arm, of the main building, each hoop component comprises two holding plates and a plurality of fixing bolts, the two holding plates are respectively attached to two sides of the concrete columns of the main building, the two holding plates are fixedly connected through the fixing bolts, and the horizontal heights of the two groups of hoop components are consistent;
the four connecting rods are respectively a first connecting rod and a second connecting rod, the third connecting rod and the fourth connecting rod correspond to one group of hoop components, the third connecting rod and the fourth connecting rod correspond to the other group of hoop components, one end of the first connecting rod is fixedly connected with the near-angle position of the standard knot attaching frame close to one side of the main building, the other end of the first connecting rod is fixedly connected with the corresponding hoop component, one end of the second connecting rod is fixedly connected with the far-angle position of the standard knot attaching frame close to one side of the main building, the other end of the second connecting rod is fixedly connected with the corresponding hoop component, one end of the third connecting rod is fixedly connected with the near-angle position of the side wall of the standard knot attaching frame, the other end of the third connecting rod is fixedly connected with the corresponding hoop component, one end of the fourth connecting rod is fixedly connected with the far-angle position of the side wall of the standard knot attaching frame, and the other end of the fourth connecting rod is fixedly.
2. The tower crane attachment device of claim 1, wherein:
four connecting rod structures are the same, the connecting rod includes first otic placode, first screw thread sleeve pipe, second otic placode and double-thread screw, and first otic placode fixed connection is on first screw thread sleeve pipe, and second otic placode fixed connection is on second screw thread sleeve pipe, and first screw thread sleeve pipe and second screw thread sleeve pipe cooperate with double-thread screw respectively.
3. The tower crane attachment device of claim 1, wherein:
82-86 degrees are formed between the first connecting rod and the side face of the main building close to one side of the tower crane knuckle arm; the angle between the second connecting rod and the side face of the main building close to one side of the joint arm of the tower crane is 60-65 degrees; 40-45 degrees are formed between the third connecting rod and the side face of the main building close to one side of the tower crane knuckle arm; 52-56 degrees are arranged between the fourth connecting rod and the side face of the main building close to one side of the tower crane knuckle arm.
CN202010271549.XA 2020-04-09 2020-04-09 Tower crane attachment device Pending CN111362155A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215231A (en) * 2022-06-09 2022-10-21 北京京能建设集团有限公司 Tower crane attachment structure
CN115973932A (en) * 2022-12-06 2023-04-18 中建二局第三建筑工程有限公司 Size-adjustable universal hoop type tower crane attachment support and construction method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115215231A (en) * 2022-06-09 2022-10-21 北京京能建设集团有限公司 Tower crane attachment structure
CN115215231B (en) * 2022-06-09 2023-08-22 北京京能建设集团有限公司 Tower crane attachment structure
CN115973932A (en) * 2022-12-06 2023-04-18 中建二局第三建筑工程有限公司 Size-adjustable universal hoop type tower crane attachment support and construction method thereof
CN115973932B (en) * 2022-12-06 2023-06-20 中建二局第三建筑工程有限公司 Universal hoop type tower crane attachment support with adjustable size and construction method thereof

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