CN112607580A - Steel ring reinforced flat car hoisting method - Google Patents
Steel ring reinforced flat car hoisting method Download PDFInfo
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- CN112607580A CN112607580A CN202011525680.0A CN202011525680A CN112607580A CN 112607580 A CN112607580 A CN 112607580A CN 202011525680 A CN202011525680 A CN 202011525680A CN 112607580 A CN112607580 A CN 112607580A
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- hoisting
- flat car
- steel ring
- lifting
- ring reinforced
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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
- 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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application belongs to the technical field of construction hoisting methods, and particularly relates to a hoisting method of a rigid ring reinforced flat car. The method comprises the following steps: cleaning a hoisting environment, and establishing and planning a ground surface, protective facilities and areas; determining structural limited parameters during hoisting; determining hoisting configuration; carrying out a hoisting test based on the foundation limiting parameters, and determining the position of hoisting equipment; determining reasonable distribution configuration of lifting points; according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined; and (5) hoisting and loading. The application provides a standardized high-efficient steel ring reinforced flat car hoisting method, improves the efficiency of steel ring reinforced flat car transition transportation in each region, reduces the hoisting time, improves the security and the stability of hoisting, prevents equipment damage.
Description
Technical Field
The application belongs to the technical field of construction hoisting methods, and particularly relates to a hoisting method of a rigid ring reinforced flat car.
Background
The steel ring reinforced flat car is used for installing vehicle equipment for reinforcing the steel ring on the inner wall of the tunnel in the tunnel construction process, and the steel ring reinforced flat car is longer in length and larger in overall mass, and meanwhile, equipment or instruments with different sizes are fixed on the body of the steel ring reinforced flat car, so that the overall mass center of the steel ring reinforced flat car is not uniformly distributed. When the steel ring reinforced flat car leaves a factory or is used, the steel ring reinforced flat car needs to be transported to carrying equipment or a ground track communicated with a tunnel to be constructed by using special hoisting equipment, due to the characteristics of the steel ring reinforced flat car, the hoisting process of the steel ring reinforced flat car is very complicated, meanwhile, different working areas do not have uniform scientific hoisting specifications and technical schemes, different hoisting schemes are adopted, the efficient and smooth hoisting of all occasions is difficult to effectively guarantee, when the hoisting scheme is unscientific or unreasonable, the safety of the equipment can be influenced, especially for the construction tasks which can only be expanded in the short rest time of a transport system at night for subway maintenance operation and the like, once the hoisting is unsmooth, the expansion of the whole construction task can be influenced.
Disclosure of Invention
An object of the application is to provide a steel ring reinforced flat car hoisting method with standardization and high efficiency, the efficiency of transition transportation of the steel ring reinforced flat car in each area is improved, the hoisting time is shortened, the hoisting safety and stability are improved, and equipment damage is prevented.
In order to achieve the purpose, the following technical scheme is adopted in the application.
A steel ring reinforced flat car hoisting method comprises the following steps:
A. cleaning a hoisting environment, and establishing and planning a ground surface, protective facilities and areas; comprises a defined hoisting area;
B. determining structural limiting parameters during hoisting, wherein the structural limiting parameters comprise that the local maximum equivalent stress value does not exceed the designed maximum allowable stress value during hoisting;
C. determining a hoisting configuration, wherein the distance H between the lifting hook and the top of the steel ring reinforced flat car to be hoisted is not less than 3.5m during hoisting on the basis of meeting the step B; the sling back is matched with the H-shaped hanging beam, and the number of the slings is not less than 2;
D. carrying out a hoisting test based on the foundation limiting parameters, and determining the position of hoisting equipment; determining reasonable distribution configuration of lifting points; according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined;
E. and (6) hoisting and loading, and hoisting based on the basic parameters determined in the step C, D.
Further improvement of the hoisting method of the steel ring reinforced flat car comprises planning a hoisting environment and protective facilities based on A, and respectively determining the positions of hoisting equipment at two ends of the steel ring reinforced flat car; b, based on the structural limiting parameters of the step B, pre-estimating hoisting equipment and reinforcing the gravity center distribution position of the flat car according to the steel ring; determining reasonable distribution configuration of lifting points on the basis of meeting lifting conditions; according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined; if interference exists, the fixed position of the hoisting equipment or the distribution design of the hoisting points needs to be adjusted; and if the deformation amount in the hoisting process exceeds the basic limiting parameter, adjusting.
In a further improvement of the hoisting method of the steel ring reinforced flat car, the method A1 further comprises the steps of defining a hoisting area on the loading side of the carrier or the vehicle according to the structural characteristics of the carrier or the vehicle, and respectively arranging hoisting machines on two sides and reserving sufficient operating space; according to the mass distribution and the structural characteristics of the steel ring reinforced flat car, the movable parts on the steel ring reinforced flat car are sequentially adjusted and fixed, and the orientation of the movable parts or the fixed positions are adjusted so as to enable the mass center to be uniformly distributed or to approach the middle as much as possible.
The hoisting method of the steel ring reinforced flat car is further improved, wherein B1 specifically comprises the steps that the maximum equivalent stress value is 50 MPa; the maximum deformation of the deformation part during hoisting is not more than 20mm, and the ratio of the average deformation of the structure to the size in the length direction at the hoisting position is not more than 0.125.
The hoisting method of the steel ring reinforced flat car is further improved, the included angle alpha between the lifting rope cable and the plane of the flat car is not less than 60 degrees in the width direction of the flat car, the inclination angle of the whole flat car and the direction of the lifting rope cable meet the condition that beta is not less than 60 and not more than 120 degrees in the length direction of the flat car, and beta is the angle formed by the inclination angle of the whole flat car and the lifting rope cable on one side of hoisting equipment in a surrounding mode.
Drawings
FIG. 1 is a schematic size diagram of a hoisting sling of a steel ring reinforced flat car;
fig. 2 is a schematic diagram of an included angle of hoisting ropes of the steel ring reinforced flat car.
Detailed Description
The present application will be described in detail with reference to specific examples.
The steel ring reinforced flat car hoisting method is mainly used for hoisting and transporting the steel ring reinforced flat car more effectively, quickly and safely, so that the construction time is saved, the equipment utilization rate is improved, and the steel ring reinforced flat car hoisting method mainly comprises the following steps:
A. cleaning a hoisting environment, and establishing and planning a ground surface, protective facilities and areas; the method comprises the following steps:
according to the structural characteristics of a carrier or a vehicle, a hoisting area is defined on the loading side of the carrier or the vehicle, hoisting machines are respectively arranged on two sides of the loading area, and sufficient operation space is reserved;
according to the mass distribution and the structural characteristics of the steel ring reinforced flat car, the movable parts on the steel ring reinforced flat car are sequentially adjusted and fixed, and the orientation of the movable parts or the fixed positions are adjusted so as to enable the mass center to be uniformly distributed or to approach to the middle as much as possible;
B. determining structural limiting parameters during hoisting, comprising:
when in hoisting, the local maximum equivalent stress value does not exceed the designed maximum allowable stress value; in the embodiment, the structural indexes of the steel plate and the pipe are set to be 50 MPa; the maximum deformation of the deformation part during hoisting is not more than 20mm, and the ratio of the average structural deformation to the length direction size at the hoisting position is not more than 0.125;
C. determining a hoisting configuration
During hoisting, the distance H between the lifting hook and the top of the steel ring reinforced flat car to be hoisted is not less than 3.5 m;
the sling back is matched with the H-shaped hanging beam, and the number of the slings is not less than 2;
D. carry out hoist and mount test based on aforementioned basic definite parameter, include:
based on the hoisting environment and protective facility planning planned by the A, respectively determining the positions of hoisting equipment at two end parts of the steel ring reinforced flat car;
b, based on the structural limiting parameters of the step B, pre-estimating hoisting equipment and reinforcing the gravity center distribution position of the flat car according to the steel ring; determining reasonable distribution configuration of lifting points on the basis of meeting lifting conditions;
according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined;
as shown in fig. 1 and fig. 2, in particular, in the specific implementation process, it should be ensured that an included angle a between a lifting rope cable and a plane of the flat car is not less than 60 ° in the width direction of the flat car, β is not less than 60 ° or not more than 120 in the length direction of the flat car, and β is an angle enclosed by the inclination angle of the whole flat car and the lifting rope cable on one side of the hoisting equipment.
If interference exists, the fixed position of the hoisting equipment or the distribution design of the hoisting points needs to be adjusted; if the deformation amount exceeds the basic limiting parameter in the hoisting process, adjusting;
finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (5)
1. The hoisting method of the steel ring reinforced flat car is characterized by comprising the following steps:
A. cleaning a hoisting environment, and establishing and planning a ground surface, protective facilities and areas; comprises a defined hoisting area;
B. determining structural limiting parameters during hoisting, wherein the structural limiting parameters comprise that the local maximum equivalent stress value does not exceed the designed maximum allowable stress value during hoisting;
C. determining a hoisting configuration, wherein the distance H between the lifting hook and the top of the steel ring reinforced flat car to be hoisted is not less than 3.5m during hoisting on the basis of meeting the step B; the sling back is matched with the H-shaped hanging beam, and the number of the slings is not less than 2;
D. carrying out a hoisting test based on the foundation limiting parameters, and determining the position of hoisting equipment; determining reasonable distribution configuration of lifting points; according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined;
E. and (6) hoisting and loading, and hoisting based on the basic parameters determined in the step C, D.
2. The hoisting method of the steel ring reinforced platform lorry according to claim 1, wherein the step D specifically means that the positions of hoisting equipment are respectively determined at two ends of the steel ring reinforced platform lorry based on the hoisting environment and protective facility planning planned by A; b, based on the structural limiting parameters of the step B, pre-estimating hoisting equipment and reinforcing the gravity center distribution position of the flat car according to the steel ring; determining reasonable distribution configuration of lifting points on the basis of meeting lifting conditions; according to the distribution of lifting point positions and the size of a used lifting rope cable, a rotation path in the lifting process is estimated, and whether the steel ring reinforced flat car on the lifting path interferes with each area or not is determined; if interference exists, the fixed position of the hoisting equipment or the distribution design of the hoisting points needs to be adjusted; and if the deformation amount in the hoisting process exceeds the basic limiting parameter, adjusting.
3. The hoisting method of the steel ring reinforced flat car according to claim 1, wherein the step A further comprises the steps of defining a hoisting area on the loading side of the vehicle according to the structural characteristics of the vehicle, arranging hoisting machines on two sides of the loading area, and reserving sufficient operating space; according to the mass distribution and the structural characteristics of the steel ring reinforced flat car, the movable parts on the steel ring reinforced flat car are sequentially adjusted and fixed, and the orientation of the movable parts or the fixed positions are adjusted so as to enable the mass center to be uniformly distributed or to approach the middle as much as possible.
4. The hoisting method of the steel ring reinforced flat car according to claim 1, wherein the B1 specifically comprises a maximum equivalent stress value of 50 MPa; the maximum deformation of the deformation part during hoisting is not more than 20mm, and the ratio of the average deformation of the structure to the size in the length direction at the hoisting position is not more than 0.125.
5. The hoisting method of the steel ring reinforced flat car according to claim 1, wherein an included angle α between the lifting rope cable and the plane of the flat car is not less than 60 ° in the width direction of the flat car, an included angle β between the inclination angle of the whole flat car and the direction of the lifting rope cable satisfies 60 ° or more and not more than 120 in the length direction of the flat car, and β is an angle formed by the inclination angle of the whole flat car and the lifting rope cable on one side of the hoisting equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011525680.0A CN112607580A (en) | 2020-12-22 | 2020-12-22 | Steel ring reinforced flat car hoisting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011525680.0A CN112607580A (en) | 2020-12-22 | 2020-12-22 | Steel ring reinforced flat car hoisting method |
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| CN112607580A true CN112607580A (en) | 2021-04-06 |
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| CN202011525680.0A Pending CN112607580A (en) | 2020-12-22 | 2020-12-22 | Steel ring reinforced flat car hoisting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102976118A (en) * | 2012-12-11 | 2013-03-20 | 大元建业集团股份有限公司 | Spatial two-moment distribution hoisting method of overweight body with partial gravity centre |
| 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 |
| CN109720976A (en) * | 2018-12-28 | 2019-05-07 | 上海二十冶建设有限公司 | The installation method of overall skid-mounted formula ice chest in Large Air Separation Devices engineering |
| CN110002333A (en) * | 2019-04-09 | 2019-07-12 | 中船澄西船舶修造有限公司 | A kind of cattle carrier large-scale complete cross section hanging method and hanging beam |
| KR102003198B1 (en) * | 2018-09-21 | 2019-07-24 | 한국리깅기술연구소(주) | selection system of crane and method thereof |
| CN112069698A (en) * | 2020-09-27 | 2020-12-11 | 中国化学工程第六建设有限公司 | Hoisting simulation construction method and system based on BIM |
-
2020
- 2020-12-22 CN CN202011525680.0A patent/CN112607580A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102976118A (en) * | 2012-12-11 | 2013-03-20 | 大元建业集团股份有限公司 | Spatial two-moment distribution hoisting method of overweight body with partial gravity centre |
| KR102003198B1 (en) * | 2018-09-21 | 2019-07-24 | 한국리깅기술연구소(주) | selection system of crane and method thereof |
| CN109720976A (en) * | 2018-12-28 | 2019-05-07 | 上海二十冶建设有限公司 | The installation method of overall skid-mounted formula ice chest in Large Air Separation Devices engineering |
| CN110002333A (en) * | 2019-04-09 | 2019-07-12 | 中船澄西船舶修造有限公司 | A kind of cattle carrier large-scale complete cross section hanging method and hanging beam |
| CN112069698A (en) * | 2020-09-27 | 2020-12-11 | 中国化学工程第六建设有限公司 | Hoisting simulation construction method and system based on BIM |
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