CN109384142A - Limit assembly and floor remove handling method - Google Patents
Limit assembly and floor remove handling method Download PDFInfo
- Publication number
- CN109384142A CN109384142A CN201811445026.1A CN201811445026A CN109384142A CN 109384142 A CN109384142 A CN 109384142A CN 201811445026 A CN201811445026 A CN 201811445026A CN 109384142 A CN109384142 A CN 109384142A
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- Prior art keywords
- floor
- limit assembly
- strut rail
- hole
- perpendicular gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of limit assembly, erects gear (1), for providing Horizontal limiting for floor to be removed (5), and transmit vertical tension across floor to be removed (5)；Strut rail (2) is mounted on described perpendicular gear (1) bottom end, for supporting floor (5) to be removed from bottom.The problems such as it is easy to wear that the present invention solves floor wirerope in demolishing process, and handling smoothness is difficult to control and higher operating costs.
Description
Technical field
The invention belongs to engineering demolition technique fields, and in particular to a kind of limit assembly and floor remove handling method.
Background technique
Currently, the developing stage of urban renewal is gradually marched toward in large-scale and megapolis, there is knot in more and more buildings
The actual demand of structure transformation, and original structure floor is carried out to remove the important link for becoming structure of modification construction.Under normal conditions,
Structure floor is removed, mainly uses chain saw and blade saw cutting mode, but during cutting, handling, it is necessary to floor
Take reliable fixation.Conventional method mainly uses steel wire loop securely fixed, basic process are as follows: 1) in advance in floor corner
Open up four holes；2) wirerope passes through under hole around board bottom；3) suspension hook is inserted in wirerope upper end, exercises wirerope on suspension hook and draws
Tight stress guarantees that floor does not topple steadily during cutting, handling.
There is some drawbacks and deficiency in use in the fixation:
(1) heavy workload is removed, wirerope is easily worn, and there are larger security risks；
(2) after the preparatory aperture of concrete, concrete is more loose at the hole that contacts with wirerope, in wirerope extruding force
Easy fragmentation is peeled off under effect, and fall-out is easy to cause falling object strike accident, while floor easily shakes, tilts, waves,
Lineoutofservice signal pull abruptly increase increases lifting safety risk；
(3) for large space, large span, high headroom class building (such as grand theater, gymnasium, exhibition center), to remove this
Class building top horizontal structure need to set up scaffold as operation platform below floor, and scaffold height is big, installation and dismounting
Heavy workload is unfavorable for saving duration and cost；If only carrying out dismounting operation on floor top, wirerope is difficult to from floor bottom
It lays out, floor can not be carried out to entangle fixation firm.
Summary of the invention
Therefore, it is an object of that present invention to provide a kind of limit assemblies and floor to remove handling method, solves floor and is tearing open
Except wirerope is easy to wear in the process, the problems such as handling smoothness is difficult to control and higher operating costs.
To solve the above problems, the present invention provides a kind of limit assembly, comprising:
Perpendicular gear 1, for providing Horizontal limiting for floor 5 to be removed, and transmit vertical tension across floor 5 to be removed；
Strut rail 2 is mounted on 1 bottom end of perpendicular gear, for supporting floor 5 to be removed from bottom.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, 1 rotation connection of strut rail 2 and perpendicular gear.
Preferably, it erects 1 bottom end of gear and connecting rod 101 is installed, strut rail 2 offers mounting hole 201, and strut rail 2 passes through mounting hole 201
It is mounted in connecting rod 101, strut rail 2 can be rotated around connecting rod 101.
Preferably, 2 both ends of strut rail vary in weight.
Preferably, it erects gear 1 and is equipped with several scaffold tubes holes 102 along the 1 length direction arrangement of perpendicular gear, several scaffold tubes holes
102 are respectively positioned on the top of 2 installation site of strut rail；Limit assembly further includes scaffold tubes 4, and scaffold tubes 4 pass through scaffold tubes hole 102, and
Backstop up and down is formed with strut rail 2 to limit.
Preferably, it erects 1 top of gear and vertical loading board 103 is installed.
Preferably, erecting gear 1 includes two side plates 104, and two side plates 104 are arranged in parallel, and is added between two side plates 104
Dress gusset 105 is welded and fixed.
Preferably, gear 1 is erected, strut rail 2 is all made of steel construction.
A method of floor is carried out using limit assembly of the invention and removes handling, comprising:
According to 5 size shape of floor to be removed, floor hole 501 is opened up；
Limit assembly is passed through into floor hole 501, until bottom end is pierced by floor hole 501；
Strut rail 2 is tightly attached to 5 bottom of floor to be removed, supports floor 5 to be removed from bottom.
Preferably, floor hole 501 is multiple, and limit assembly is that floor 5 to be removed provides by multiple floor holes 501
Multiple equilibrium support.
The method that limit assembly and floor provided by the invention remove handling at least have it is following the utility model has the advantages that
Limit assembly and floor provided in an embodiment of the present invention remove handling method, instead of the fixed floor of wirerope, overcome
Wirerope is easy to wear, and wirerope covers the problem that solid stability is poor, and floor balance is difficult to control during handling to floor, using limit
Hyte part carries out horizontal and vertical limit to floor and fixes, easy for installation, high reliablity, convenient for making with cooperations such as lifting appliances
With.
Limit assembly structure is simple and durable, can regularization production, reusable, resource utilization is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the limit assembly of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the perpendicular gear of the limit assembly of the embodiment of the present invention；
Fig. 3 is the strut rail structural schematic diagram of the limit assembly of the embodiment of the present invention；
Fig. 4 is that limit assembly penetrates floor process signal to be removed in the floor dismounting handling method of the embodiment of the present invention
Figure；
The floor of the position Fig. 5 embodiment of the present invention removes strut rail in handling method and rotates schematic diagram；
The floor of the position Fig. 6 embodiment of the present invention, which is removed, completes stationary state schematic diagram in handling method.
Appended drawing reference indicates are as follows:
1, gear is erected；2, strut rail；3, wirerope；4, scaffold tubes；5, floor to be removed；101, connecting rod；102, scaffold tubes hole；
103, vertical loading board；104, side plate；105, gusset；201, mounting hole；501, floor hole.
Specific embodiment
In conjunction with referring to FIG. 1 to FIG. 4, according to an embodiment of the invention, the present invention provides a kind of limit assembly, comprising:
Perpendicular gear 1, for providing Horizontal limiting for floor 5 to be removed, and transmit vertical tension across floor 5 to be removed；
Strut rail 2 is mounted on 1 bottom end of perpendicular gear, for supporting floor 5 to be removed from bottom.
Limit assembly of the invention is mainly used in engineering dismounting, the dismounting operation to floor.
In conventional methods where, before floor is removed, wirerope need to be used to put floor on the spot, but wirerope is easy to wear, wirerope
When covering solid floor, floor edge, which is squeezed, may occur fragmentation, and fall-out is easy to cause falling object strike accident, while steel wire
Rope tension abruptly increase, brings security risk；It again because of its soft quality characteristic, can be spinned, or even topple, make often by the floor of handling
The safety of industry process can not be effectively ensured.
Limit assembly of the invention uses penetration type method, floor 5 to be removed is passed through by perpendicular gear 1, to floor 5 to be removed
While Horizontal limiting is provided, vertical pulling force is provided for strut rail 2, support is provided from 5 bottom of floor to be removed by strut rail 2, treats
Remove floor 5 limited vertically, 5 forced area of floor to be removed is big, will not because stress concentrate due to fragmentation.
Using the above-mentioned limit assembly of the present embodiment, operates and construct in floor upper surface, floor can be completed and fixed, and
The connection of lifting appliance, the beneficial effect that there is traditional fixed equipment to be unable to reach.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
In this embodiment, strut rail 2 and perpendicular gear 1 are using rotation connection.
Above-mentioned rotation connection preferably uses hole axle to cooperate, and installs connecting rod 101 in 1 bottom end of perpendicular gear, strut rail 2 offers peace
Hole 201 is filled, strut rail 2 is mounted in connecting rod 101 by mounting hole 201, and strut rail 2 can be rotated around connecting rod 101.
Strut rail 2 need to keep horizontality, the strut rail 2 of horizontality can not be from building to be removed when supporting floor 5 to be removed
It is passed through in plate 5, it is therefore preferable that strut rail 2 is designed to rotatably, when limit assembly passes through floor 5 to be removed, by strut rail 2
The state for tending to be vertical is turned to, until strut rail 2 passes through floor 5 to be removed, then strut rail 2 is turned into horizontality, strut rail 2 limits
Bit manipulation is convenient.
Preferably, 2 both ends of strut rail vary in weight, and 2 one end of strut rail is heavier, and one end is lighter.When nonequilibrium condition, strut rail 2 exists
Under self gravitation effect, heavier one end will pull strut rail 2 to respective direction rotary oscillation.
The strut rail 2 of this design passes through floor 5 to be removed in limit assembly and is not required to after the blocking for getting rid of floor hole 501
It is rotated by external force, can voluntarily rotate swing.The structure of this strut rail 2 is simple, and high reliablity is at low cost, durable,
The adverse circumstances such as engineering dismounting are very suitable to use.When necessary, can also use power-actuated mode, such as strut rail 2 or erect
The dynamical elements such as drive motor are installed on gear 1 or even in connecting rod 101, dynamical element is driven by signal, overturns strut rail 2
It swings.
In the present embodiment this strut rail 2 can automatic turning design, make operator only in 5 upper surface energy of floor to be removed
The fixation for completing floor 5 to be removed does not need to carry out any operation below floor 5 to be removed, overcomes high headroom, large span
Equal structural constructions, need to lower section build the job platforms such as scaffold could complete under wirerope around problem, build this class formation
The Demolition Construction built is more convenient efficiently, highly-safe, and helps to control engineering dismounting cost.
The present embodiment is preferred, processes several scaffold tubes holes 102 at perpendicular 1 middle part of gear, scaffold tubes hole 102 is along 1 length of perpendicular gear
Direction setting, limit assembly further include scaffold tubes 4, and scaffold tubes 4 pass through scaffold tubes hole 102, and form backstop up and down with strut rail 2 and limit
Position.Scaffold tubes 4 can according to 5 thickness of floor to be removed select insertion proper height scaffold tubes hole 102, and guarantee as far as possible close to
The upper surface of floor 5 to be removed.
It is limited by the backstop up and down that scaffold tubes 4 and strut rail 2 are formed, limit assembly can be by floor to be removed 5 vertical
It completes to fix in direction.The effect of scaffold tubes 4 also resides in, and prevents limit assembly is unexpected from falling to building to be removed from floor hole 501
5 lower section of plate, limit assembly and floor 5 to be removed are fixed to each other.
1 top of perpendicular gear is equipped with vertical loading board 103.Vertical loading board 103 is connected with lifting appliance by wirerope 3 for limit assembly
Connect, provide limit assembly fix, the pulling force of handling floor 5 to be removed.
The embodiment of the present invention is preferred, and erecting gear 1 includes two side plates 104.Two side plates 104 are arranged in parallel, and at two
Gusset 105 is installed between side plate 104 additional to be welded and fixed；Connecting rod 101, scaffold tubes hole 102, side plate 104, gusset 105 use steel knot
Structure, it is durable.
Strut rail 2 uses cross sectional shape for rectangular steel construction piece, it is preferred to use square steel, square-section is convenient for strut rail 2 and erects
Gear 1 is coupled, and 2 self-strength of square steel strut rail is big, while supporting contact surface larger, is conducive to effectively support floor to be removed
5, avoid local pressure from concentrating.
The perpendicular gear 1 of this structure is under the premise of guaranteeing intensity itself, structure simple optimization, and two sides plank frame is convenient for hanging
The installation of bar 103 and connecting rod 101 is filled, the space between two side plates 104 can accommodate the strut rail 2 of vertical state, reduce limit
Hyte part overall cross sectional area, to reduce the difficulty and workload for opening up floor hole 501 on floor 5 to be removed.
Meanwhile scaffold tubes hole 102 is provided on two side plates 104, scaffold tubes 4 are axial parallel with connecting rod 101, and strut rail
2 are rotatably installed in connecting rod 101, vertical with scaffold tubes 4 after strut rail 2 turns to horizontality, relative to other as axial flat
Row structure, orthogonal scaffold tubes 4 and strut rail 2 are more stable, have preferably limit fixed effect to floor 5 to be removed.
Limit assembly of the invention may be used alone, can also be used in combination, and theoretically not only be applicable in without the upper limit
It is fixed in the dismounting of structure floor, is also applied for other punching perforative building structure.
In conjunction with fig. 4 to fig. 6, according to an embodiment of the invention, the present invention provides it is a kind of using limit assembly of the present invention into
The method of row floor dismounting handling, comprising:
1, floor hole 501 is opened up on floor 5 to be removed, 501 size of floor hole is slightly larger compared with limit assembly section；Building
Plate hole 501 needs to be multiple, and limit assembly is that floor 5 to be removed provides balanced support by multiple floor holes 501.Floor
The position at hole 501 will wait tearing open according to 5 size shape of floor to be removed to be measured in the present embodiment for rectangle in homogeneous thickness
Except floor 5, four floor holes 501 are symmetrically opened up in its quadrangle.
If floor 5 to be removed is in uneven thickness or in irregular shape, then the center of gravity position of floor 5 to be removed is comprehensively considered
It sets, reasonable layout floor hole 501, meets multiple equilibrium support.
2, wirerope 3 penetrates vertical loading board 103, and construction personnel buttresses limit assembly above floor 5 to be removed, guarantees perpendicular gear
1 is in upright state with strut rail 2, and the heavier one end of strut rail 2 is upward.
3, limit assembly is inserted into floor hole 501, declines limit assembly slowly by the traction of wirerope 3, until horizontal
Gear 2 is all pierced by floor hole 501.
4, at this point, the external force that strut rail 2 loses floor hole 501 stops, strut rail 2 starts rotation pendulum under the effect of gravity
It is dynamic, before it stops swinging, it is lifted up wirerope 3, limit assembly is lifted up, and is tightly attached to strut rail 2 in level to be removed
5 bottom of floor.
5, in the state that wirerope 3 tenses, scaffold tubes 4 are passed through to the scaffold tubes hole of the perpendicular gear 1 in 5 top of floor to be removed
102, the vertical relative freedom of limit assembly and floor 5 to be removed is fully locked, complete the fixation of floor 5 to be removed.
To sum up, limit assembly and floor provided by the invention remove handling method, overcome floor in engineering dismounting and fix
The fixed constructional difficulties of wirerope in cutting, handling, reliability is low, and time-consuming and laborious, the technical problems such as at high cost can be applicable to
The safety of the structure floors such as high headroom, large span is removed.Limit assembly structure itself is sturdy and durable, can regularization production, repeat
It utilizes, there is considerable practical value.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (10)
1. a kind of limit assembly characterized by comprising
Perpendicular gear (1), for providing Horizontal limiting for floor to be removed (5), and transmit vertical tension across floor to be removed (5)；
Strut rail (2) is mounted on described perpendicular gear (1) bottom end, for supporting floor (5) to be removed from bottom.
2. limit assembly according to claim 1, which is characterized in that the strut rail (2) and perpendicular gear (1) rotation connect
It connects.
3. limit assembly according to claim 2, which is characterized in that perpendicular gear (1) bottom end installation connecting rod (101),
The strut rail (2) offers mounting hole (201), and the strut rail (2) is mounted on the connecting rod by the mounting hole (201)
(101) on, the strut rail (2) can rotate around connecting rod (101).
4. limit assembly according to claim 2, which is characterized in that strut rail (2) both ends vary in weight.
5. limit assembly according to claim 1, which is characterized in that the perpendicular gear (1) is equipped with several along the perpendicular gear
(1) the scaffold tubes hole (102) of length direction arrangement, several scaffold tubes holes (102) are respectively positioned on the strut rail (2) installation site
Top；The limit assembly further includes scaffold tubes (4), the scaffold tubes (4) pass through the scaffold tubes hole (102), and with institute
It states strut rail (2) and forms backstop limit up and down.
6. limit assembly according to claim 1, which is characterized in that described perpendicular gear (1) top is equipped with vertical loading board
(103)。
7. limit assembly according to claim 1, which is characterized in that the perpendicular gear (1) include two side plates (104), two
A side plate (104) is arranged in parallel, and installs gusset (105) additional between two side plates (104) and be welded and fixed.
8. -7 any limit assembly according to claim 1, which is characterized in that the perpendicular gear (1), strut rail (2) are all made of
Steel construction.
9. a kind of carry out floor dismounting handling method using any limit assembly of claim 1-8, which is characterized in that packet
It includes:
According to floor to be removed (5) size shape, floor hole (501) are opened up；
The limit assembly passes through the floor hole (501)；
The strut rail (2) is tightly attached to floor to be removed (5) bottom, supports floor (5) to be removed from bottom.
10. floor according to claim 9 removes handling method, which is characterized in that the floor hole (501) is more
A, the limit assembly is that the floor (5) to be removed provides multiple equilibrium support by multiple floor holes (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445026.1A CN109384142A (en) | 2018-11-29 | 2018-11-29 | Limit assembly and floor remove handling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445026.1A CN109384142A (en) | 2018-11-29 | 2018-11-29 | Limit assembly and floor remove handling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109384142A true CN109384142A (en) | 2019-02-26 |
Family
ID=65430032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445026.1A Pending CN109384142A (en) | 2018-11-29 | 2018-11-29 | Limit assembly and floor remove handling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109384142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666251A (en) * | 2020-05-15 | 2021-11-19 | 山东建筑大学 | Crankshaft type limiting device and floor slab dismantling and lifting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3307871A (en) * | 1965-02-04 | 1967-03-07 | Cianbro Mfg Corp | Toggle device for lifting heavy objects |
| US5332272A (en) * | 1992-10-30 | 1994-07-26 | Prince Dorris W | Hoisting sling |
| JPH0725579A (en) * | 1993-07-13 | 1995-01-27 | Sekisui House Ltd | Panel suspending tool |
| JPH11116180A (en) * | 1997-10-14 | 1999-04-27 | Daiichi Diamond Koji Kk | Concrete panel lifting method |
| FR2871827A1 (en) * | 2004-06-18 | 2005-12-23 | Ingenierie Et Commercialisatio | Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar |
| JP2007320741A (en) * | 2006-06-02 | 2007-12-13 | Shimizu Corp | Hanging unit for lifting |
| WO2010133568A1 (en) * | 2009-05-20 | 2010-11-25 | Bouygues Construction | Device for automatically coupling and uncoupling heavy structures |
| CN205187643U (en) * | 2015-08-04 | 2016-04-27 | 天津新港船舶重工有限责任公司 | Hoist device on ro -Ro vessel activity deck |
-
2018
- 2018-11-29 CN CN201811445026.1A patent/CN109384142A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3307871A (en) * | 1965-02-04 | 1967-03-07 | Cianbro Mfg Corp | Toggle device for lifting heavy objects |
| US5332272A (en) * | 1992-10-30 | 1994-07-26 | Prince Dorris W | Hoisting sling |
| JPH0725579A (en) * | 1993-07-13 | 1995-01-27 | Sekisui House Ltd | Panel suspending tool |
| JPH11116180A (en) * | 1997-10-14 | 1999-04-27 | Daiichi Diamond Koji Kk | Concrete panel lifting method |
| FR2871827A1 (en) * | 2004-06-18 | 2005-12-23 | Ingenierie Et Commercialisatio | Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar |
| JP2007320741A (en) * | 2006-06-02 | 2007-12-13 | Shimizu Corp | Hanging unit for lifting |
| WO2010133568A1 (en) * | 2009-05-20 | 2010-11-25 | Bouygues Construction | Device for automatically coupling and uncoupling heavy structures |
| CN205187643U (en) * | 2015-08-04 | 2016-04-27 | 天津新港船舶重工有限责任公司 | Hoist device on ro -Ro vessel activity deck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666251A (en) * | 2020-05-15 | 2021-11-19 | 山东建筑大学 | Crankshaft type limiting device and floor slab dismantling and lifting method |
| CN113666251B (en) * | 2020-05-15 | 2023-08-04 | 山东建筑大学 | Crankshaft type limiting device and floor dismantling and lifting method |
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Application publication date: 20190226 |
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