CN106202799A - A kind of multipoint hoisting computational methods - Google Patents
A kind of multipoint hoisting computational methods Download PDFInfo
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- CN106202799A CN106202799A CN201610582024.1A CN201610582024A CN106202799A CN 106202799 A CN106202799 A CN 106202799A CN 201610582024 A CN201610582024 A CN 201610582024A CN 106202799 A CN106202799 A CN 106202799A
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- 238000000205 computational method Methods 0.000 title claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 30
- 239000000725 suspension Substances 0.000 claims description 49
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 5
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical group C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
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Abstract
The present invention relates to a kind of multipoint hoisting computational methods, comprising: model simplification, input length, the valuation of width distribution of weight, valuation to input calculates and tries to achieve the difference of center of gravity estimation value and actual value, after the difference utilizing center of gravity is revised repeatedly until meeting stop condition, export result.The method of the present invention can meet the required precision of engineering, the most easy of use.
Description
Technical field
The present invention relates to a kind of computational methods for steel construction suspension centre.
Background technology
Lifting for heavy construction structure, it usually needs the suspension centre of more than 4 is set, and the needs that arrange of suspension centre are examined
Consider the deformation in hoisting process and loading characteristic, meet the practical situation of structure.Therefore, hang large scale structure is carried out multiple spot
Before dress, need suspension centre stress is calculated and analyzed.
Multipoint hoisting belongs to statically indeterminate problem, it is impossible to obtain the stress of each suspension centre by solving simple mechanical equation；Increase is scratched
Although degree equation can accurately solve the stress of suspension centre, but solution is relatively complicated, and initial conditions is more, needs accurately input
The physical dimension of each section of structure and material properties, and delicate distribution.Use software for calculation to solve to hang
The stress of point, but need in advance analysis object to be modeled one by one, significantly increase lifting calculating time and workload, in reality
Border uses and inconvenient.Accordingly, it would be desirable to a kind of required precision that can meet engineering, the most wieldy computational methods.
Summary of the invention
The technical problem to be solved is to provide a kind of new calculation method for large scale structure multipoint hoisting, with
Improve accuracy and the computational efficiency of result of calculation.
In order to solve above-mentioned technical problem, a kind of multipoint hoisting computational methods of the present invention, comprise the following steps:
A. analyze object and be reduced to one dimension beam model in the longitudinal direction；
B. arrange according to suspension centre, beam model is divided into some sections；
C. the valuation of each section of weight ratio is inputted；
D. according to each section of weight, position of centre of gravity is estimated；
E. according to the difference of center of gravity estimated value Yu actual value, revise each section of weight ratio, repeat step d ~ e until meeting and stopping bar
Part；
F. each section of weight, the ratio of estimation suspension centre stress are exported；
G. according to suspension centre stress, position of centre of gravity is estimated；
H. according to the difference of center of gravity estimated value Yu actual value, revise the ratio of suspension centre stress, repeat step g ~ h until meeting and stopping bar
Part；
I. the ratio of length direction suspension centre stress is exported；
J. analyze object and be reduced to one dimension beam model in the direction of the width；
K. step b ~ h is repeated；
L. the ratio of width suspension centre stress is exported；
M. calculate according to the when gross weight of suspension centre stress on length and width direction, export each suspension centre Force Calculation result.
Input parameter needed for calculating in above-mentioned steps only includes analyzing the size of object, gross weight, position of centre of gravity, suspension centre
Arrange and the valuation of each section of weight ratio.
In above-mentioned steps, stop condition is center of gravity estimated value and the difference of center of gravity actual value reaches 0.0001.
The method of the present invention can meet the required precision of engineering, the most easy of use.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the analysis object model schematic diagram that the two dimensional extent after simplifying and width have m and n suspension centre respectively；
Fig. 3 is for analyzing object length or width calculation flow chart；
Fig. 4 is the analysis object structure diagram of an embodiment of the present invention；
Fig. 5 is two dimensional model schematic diagram after embodiment simplifies；
Fig. 6 is one-dimensional model schematic diagram after embodiment simplifies.
Detailed description of the invention
In view of the actual demand of suspension centre Force Calculation, vertical structure is simplified, can be real by three-dimensional structure
Body is converted into the areal model of two dimension, result can't be produced impact.The layout of suspension centre needs to consider the actual features of structure,
Assume that the two dimensional model length and width direction after simplifying has m and n suspension centre respectively, then have respectively on length and width direction
(m-1) and (n-1) section, Fig. 2 is seen.
Next step, need to be respectively calculated length and width direction.
The most only consider length direction, calculation process such as Fig. 3.
By the distribution of weight of two dimensional model in the case of one-dimensional, can set (m-1) ratio between each section of weight of section is full
Foot, whereinGross weight for structure.It follows that according to structure
True form and equipment installation layout feature, provide the estimated value of each section of weight ratio, i.e.。
According to principle of moment balance, structure gross weight can be passed through, the estimated value of each section of weight ratio, each section
Physical length, it is calculated structural focus approximation in the longitudinal direction.The actual center gravity of structureCommonly known, therefore can utilize the difference between center of gravity approximation and actual value, revise each section of weight ratio.Then, utilize revisedRepeat above-mentioned calculating process, untilAfter meeting stop condition (such as 0.0001), stop meter
Calculate.
By in each section of distribution of weight to adjacent suspension centre, obtain the approximation of suspension centre stress on length direction。
Also according to principle of moment balance, structure gross weight can be passed through, the estimated value of ratio of each suspension centre stress, the reality of each section
Length, recalculate structural focus approximation in the longitudinal direction.Utilize center of gravity approximationWith
Difference between actual value, each section of weight ratio being given before correction.Afterwards, utilize revisedRepeat above-mentioned
Calculating process, untilAfter meeting stop condition (such as 0.0001), stop calculating.Finally, each suspension centre on length direction is obtained
Stress。
Same method is used to calculate the stress of suspension centre on width.First to the ratio of each section of weight on width
Value carries out estimating and calculate the estimated value of center of gravity on width, then utilizes the difference between center of gravity estimation value and actual value
Revise the ratio of each section of weight on width, until meeting stop condition.By each section of distribution of weight finally giving to width
Each suspension centre on direction.On recycling width, the ratio of each suspension centre stress calculates center of gravity and is iterated revising, finally
The ratio of each suspension centre stress on width。
Ratio according to suspension centre stress each on length and width direction, and the gross weight of analysis object, calculate all
The stress value of suspension centre。
Using the structure of Fig. 4 as the embodiment of the inventive method.
Fig. 5 shows the two dimensional model schematic diagram after the simplification of embodiment.In figure,Represent suspension centre stress,a、b、cRepresent the spacing of adjacent suspension centre.
Fig. 6 shows the one-dimensional model schematic diagram after the simplification of the first embodiment of the present invention.In figure,R1 ~ R4 represent
Suspension centre stress,G1 ~ G3 represent the actual weight of component between adjacent upright posts, meet following relation respectively:
(1)
In formula,GRepresent the weight of total.Then, according to practical situation (section bar, scantling etc.) according to a preliminary estimateG 1、G 2、G 3Ratio, even, then have
(2)
It follows that according to principle of moment balance
(3)
In formula,X 1、X 2、X 3Represent respectivelyG 1、G 2、G 3Corresponding position of centre of gravity,The total that expression estimation obtains
Position of centre of gravity.
Due toX g * it is that estimation obtains, therefore；Represent the position of centre of gravity that total is actual.
If, order
(4)
In formula,Represent center of gravity correction；It it is convergence coefficient.By utilizingCan recalculateI.e.
(5)
By obtainSubstitution formula (3) repeats said process, until stopping when meeting following condition calculating
(6)
If, the most still utilize formula (4) to calculate, then substitute into following formula and recalculateI.e.
(8)
By obtainSubstitution formula (3) repeats said process, until meeting stop condition.
After calculating meets stop condition, by finally giveSubstitution formula (2) can obtain revised, i.e.
Next step, by revisedDistribution is assigned on adjacent suspension centre, i.e. according to the following equation
(9)
In formula,Represent and distributed, by each section of weight, the suspension centre stress obtained,a、b、cRepresent the spacing of adjacent suspension centre,
It is partition coefficient, the present embodiment takes。
Can obtain according to principle of moment balance
(10)
In formula,Represent the position of centre of gravity drawn by force evaluating by suspension centre,a、b、cRepresent the spacing of adjacent suspension centre,
In like manner, due toIt not the actual center gravity of structure, therefore, equally utilizeWithDifference enter
Row is revised, to calculate suspension centre stressR 1、R 2、R 3、R 4, comprise the following steps that
If, order
(11)
In formula,Represent center of gravity correction；It it is convergence coefficient.Then utilizeReviseI.e.
(12)
By obtainSubstitution formula (10) repeats said process, until stopping iteration when meeting following condition
(13)
If, the most still utilize formula (11) to calculate, then substitute into following formula correctionI.e. (14)
By obtainSubstitution formula (10) repeats said process, until meeting stop condition.
Calculate after stopping, according to finally giveCan be calculatedR 1、R 2、R 3、R 4, i.e.
It follows that consideration width.Owing to only having two suspension centres on the width of the present embodiment, therefore can be directly according to power
Square equilibrium principle, obtains its ratio, i.e., in formula, s represents that, on width, center of gravity arrivesDistance.
Finally, according to, can be byR 1、R 2、R 3、R 4Calculate respectivelyR 11、R 21、R 12、R 22、R13、R 23、R 14、R 24, the stress of the most all suspension centres, such as Fig. 5.
Claims (3)
1. multipoint hoisting computational methods, it is characterised in that: comprise the following steps,
Analyze object and be reduced to one dimension beam model in the longitudinal direction；
Arrange according to suspension centre, beam model is divided into some sections；
Input the valuation of each section of weight ratio；
According to each section of weight, estimate position of centre of gravity；
According to the difference of center of gravity estimated value Yu actual value, revising each section of weight ratio, repeating step d ~ e until meeting stop condition；
Export each section of weight, the ratio of estimation suspension centre stress；
According to suspension centre stress, estimate position of centre of gravity；
According to the difference of center of gravity estimated value Yu actual value, revising the ratio of suspension centre stress, repeating step g ~ h until meeting stop condition；
The ratio of output length direction suspension centre stress；
Analyze object and be reduced to one dimension beam model in the direction of the width；
Repeat step b ~ h；
The ratio of output width suspension centre stress；
Calculate according to the when gross weight of suspension centre stress on length and width direction, export each suspension centre Force Calculation result.
2. a kind of multipoint hoisting computational methods as claimed in claim 1, it is characterised in that: the input parameter needed for calculating is only wrapped
Include the analysis size of object, gross weight, position of centre of gravity, suspension centre layout and the valuation of each section of weight ratio.
3. a kind of multipoint hoisting computational methods as claimed in claim 1 or 2, it is characterised in that: stop condition is center of gravity estimation
Value reaches 0.0001 with the difference of center of gravity actual value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582024.1A CN106202799A (en) | 2016-07-22 | 2016-07-22 | A kind of multipoint hoisting computational methods |
| PCT/CN2016/102451 WO2018014454A1 (en) | 2016-07-22 | 2016-10-18 | Multi-point hoisting calculation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582024.1A CN106202799A (en) | 2016-07-22 | 2016-07-22 | A kind of multipoint hoisting computational methods |
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| WO (1) | WO2018014454A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215431A (en) * | 2017-06-29 | 2017-09-29 | 中船第九设计研究院工程有限公司 | A kind of luxury liner block lifts eye thimble method for arranging |
| CN108425501A (en) * | 2017-08-12 | 2018-08-21 | 中民筑友科技投资有限公司 | A kind of component based on BIM hangs nail location determining method and device |
| CN114476943A (en) * | 2022-01-26 | 2022-05-13 | 扬州大学 | Method for determining hoisting point of large wind power generation component |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117520A (en) * | 2018-07-21 | 2019-01-01 | 中铁十八局集团有限公司 | A kind of cable hoisting arrangement system and design method based on BIM |
| CN114476965B (en) * | 2021-12-31 | 2024-06-18 | 中国船舶集团青岛北海造船有限公司 | Design method for hoisting ultra-large ship block |
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| CN102452603A (en) * | 2010-10-28 | 2012-05-16 | 金海重工股份有限公司 | Large ship superstructure hoisting method |
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| CN104746883A (en) * | 2015-03-27 | 2015-07-01 | 浙江中南建设集团钢结构有限公司 | Construction method for three-crane lifting installation used for bow-shaped space truss |
| CN105460774A (en) * | 2016-01-07 | 2016-04-06 | 惠生（南通）重工有限公司 | Suspensory rigging for hoisting of land modules |
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| JP2009029528A (en) * | 2007-07-24 | 2009-02-12 | Hitachi Plant Technologies Ltd | Target load calculating method in multi-point lifting work, and actuator selecting method |
| CN101746672B (en) * | 2009-12-28 | 2014-05-07 | 林汉丁 | Constant lifting hoisting force hoisting method capable of accurately setting hoisting points |
| CN103699748B (en) * | 2013-12-23 | 2016-08-17 | 天津市振津石油天然气工程有限公司 | Skid chemical plant frame hoisting decorates method for determining position |
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2016
- 2016-07-22 CN CN201610582024.1A patent/CN106202799A/en active Pending
- 2016-10-18 WO PCT/CN2016/102451 patent/WO2018014454A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452603A (en) * | 2010-10-28 | 2012-05-16 | 金海重工股份有限公司 | Large ship superstructure hoisting method |
| CN103010954A (en) * | 2012-12-07 | 2013-04-03 | 中国建筑第八工程局有限公司 | Multi-point hoisting method for heterogeneous prefabricated part |
| CN104746883A (en) * | 2015-03-27 | 2015-07-01 | 浙江中南建设集团钢结构有限公司 | Construction method for three-crane lifting installation used for bow-shaped space truss |
| CN105460774A (en) * | 2016-01-07 | 2016-04-06 | 惠生（南通）重工有限公司 | Suspensory rigging for hoisting of land modules |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107215431A (en) * | 2017-06-29 | 2017-09-29 | 中船第九设计研究院工程有限公司 | A kind of luxury liner block lifts eye thimble method for arranging |
| CN108425501A (en) * | 2017-08-12 | 2018-08-21 | 中民筑友科技投资有限公司 | A kind of component based on BIM hangs nail location determining method and device |
| CN108425501B (en) * | 2017-08-12 | 2020-05-15 | 中民筑友科技投资有限公司 | BIM-based component hanging nail position determination method and device |
| CN114476943A (en) * | 2022-01-26 | 2022-05-13 | 扬州大学 | Method for determining hoisting point of large wind power generation component |
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| WO2018014454A1 (en) | 2018-01-25 |
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