CN114180456A - Hoisting posture adjusting method for giant laterally inclined truss structure - Google Patents
Hoisting posture adjusting method for giant laterally inclined truss structure Download PDFInfo
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- CN114180456A CN114180456A CN202111441577.2A CN202111441577A CN114180456A CN 114180456 A CN114180456 A CN 114180456A CN 202111441577 A CN202111441577 A CN 202111441577A CN 114180456 A CN114180456 A CN 114180456A
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- steel wire
- rope
- main
- lifting
- hook
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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
- 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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- 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)
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Abstract
The hoisting posture adjusting method of the giant sideslip truss structure comprises customizing a main steel wire rope, an auxiliary steel wire rope, a rope sleeve, a lifting lug, a set of pulley block, a chain block, a safety rope and other hoisting devices; welding lifting lugs to main pipes on two sides of the giant oblique truss in advance; respectively connecting the chain block and the corresponding safety rope with the two auxiliary steel wire ropes; respectively winding the main steel wire ropes on the hook heads on the two sides of the lifting hook in a penetrating manner; and (3) lifting the hook by the main crane, continuing lifting the hook by the main crane, simultaneously controlling the inverted chain of the auxiliary steel wire rope to adjust, installing the giant laterally inclined truss in place, and repeating the steps 7-10 to complete the construction of adjusting the lifting posture of the next truss. The lifting posture adjusting method is simple and convenient to control, few in required temporary measures, convenient and fast, and capable of greatly reducing human input. When the posture is adjusted, the pulley block can save labor for chain block of the main hoisting point, and the safety coefficient can be greatly improved.
Description
Technical Field
The invention relates to the technical field of hoisting of steel structures, in particular to a hoisting posture adjusting method of a giant laterally inclined truss structure.
Background
The traditional pipe truss hoisting posture adjusting technology adopts a single machine four-point hoisting (four hoisting points are all in a lifting lug or binding mode), and each hoisting point is provided with a chain block for posture adjustment.
Disclosure of Invention
The invention aims to overcome the defects and provides a hoisting posture adjusting method for a giant laterally inclined truss structure.
In order to achieve the above object, the present invention is realized by:
a hoisting posture adjusting method of a giant sideslip truss structure comprises a main steel wire rope (1), an auxiliary steel wire rope (2), a chain block (3) and a safety rope (4), and comprises
Step 1, customizing a main steel wire rope (1), an auxiliary steel wire rope (2), a rope sleeve, a lifting lug, a set of pulley block, a chain block (3), a safety rope (4) and other hoisting devices;
2, welding lifting lugs to main pipes on two sides of the giant laterally-inclined truss in advance, and paying attention to the fact that welding positions need to deviate from the cross section of the truss where the center of gravity is located by 50cm, so that the posture is convenient to adjust and the main steel wire rope is guaranteed to be a main stress rope;
step 3, assembling the pulley block, the chain block and the safety rope corresponding to the chain block into a whole, and connecting the pulley block and the safety rope with two rope sleeves of the main steel wire rope by utilizing a shackle, namely the main steel wire rope is a double rope;
step 4, connecting the other two chain blocks and the corresponding safety ropes with the two auxiliary steel wire ropes respectively;
step 5, respectively threading the main steel wire ropes on hook heads on two sides of the lifting hook to ensure the stress balance of the lifting hook;
step 6, respectively winding the two auxiliary steel wire ropes on two sides of the lifting hook in a similar manner;
step 7, lifting the hook of the main crane, and reliably connecting the main steel wire rope and the pulley block which are not adjustable with the two lifting lugs respectively by utilizing the shackle;
step 8, sequentially threading the rope sling at the joint positions of the main pipes on the two sides, and respectively connecting the rope sling with the auxiliary steel wire rope and the safety rope by utilizing the shackle;
step 9, the main crane hooks the hook, and simultaneously adjusts the chain block corresponding to the pulley block, so that the two main steel wire ropes are stressed and tensioned;
and step 10, assisting the auxiliary crane to lift the main pipe with the higher lower end, continuously lifting the hook of the main crane, and simultaneously controlling the chain blocks of the auxiliary steel wire ropes to adjust until the two auxiliary steel wire ropes are stressed and tensioned.
And 11, after the giant side inclined truss is installed in place, repeating the steps 7-10 to complete the construction of adjusting the hoisting posture of the next truss.
The posture of the giant laterally inclined truss is adjusted through the pulley block and the chain block, so that the giant laterally inclined truss is adjusted from a horizontal splicing posture to an installation posture, the method can be applied to hoisting construction of steel structures such as an overweight special-shaped pipe truss and the like, and compared with the traditional hoisting method, the method has the following advantages:
(1) the hoisting posture adjusting method is simple and convenient to control, few in required temporary measures, convenient and fast, and capable of greatly reducing the human input.
(2) When the posture is adjusted, the pulley block can save labor for chain block of the main hoisting point, and the safety coefficient can be greatly improved.
Drawings
Fig. 1 is a schematic view of a binding hook of a hoist rigging of a main hoist and an auxiliary hoist.
Fig. 2 is a schematic diagram of synchronous hook lifting of the main crane and the auxiliary crane.
Fig. 3 is a schematic diagram of the auxiliary hoist stopping hooking and the main hoist continuing hooking.
FIG. 4 is a schematic view of adjusting the hoisting attitude of the giant oblique truss.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 to 4, a method for adjusting a hoisting posture of a giant oblique truss structure includes a main steel wire rope (1), an auxiliary steel wire rope (2), a chain block (3) and a safety rope (4), including
Step 1, customizing a main steel wire rope (1), an auxiliary steel wire rope (2), a rope sleeve, a lifting lug, a set of pulley block, a chain block (3), a safety rope (4) and other hoisting devices;
2, welding lifting lugs to main pipes on two sides of the giant laterally-inclined truss in advance, and paying attention to the fact that welding positions need to deviate from the cross section of the truss where the center of gravity is located by 50cm, so that the posture is convenient to adjust and the main steel wire rope is guaranteed to be a main stress rope;
step 3, assembling the pulley block, the chain block and the safety rope corresponding to the chain block into a whole, and connecting the pulley block and the safety rope with two rope sleeves of the main steel wire rope by utilizing a shackle, namely the main steel wire rope is a double rope;
step 4, connecting the other two chain blocks and the corresponding safety ropes with the two auxiliary steel wire ropes respectively;
step 5, respectively threading the main steel wire ropes on hook heads on two sides of the lifting hook to ensure the stress balance of the lifting hook;
step 6, respectively winding the two auxiliary steel wire ropes on two sides of the lifting hook in a similar manner;
step 7, lifting the hook of the main crane, and reliably connecting the main steel wire rope and the pulley block which are not adjustable with the two lifting lugs respectively by utilizing the shackle;
step 8, sequentially threading the rope sling at the joint positions of the main pipes on the two sides, and respectively connecting the rope sling with the auxiliary steel wire rope and the safety rope by utilizing the shackle;
step 9, the main crane hooks the hook, and simultaneously adjusts the chain block corresponding to the pulley block, so that the two main steel wire ropes are stressed and tensioned;
and step 10, assisting the auxiliary crane to lift the main pipe with the higher lower end, continuously lifting the hook of the main crane, and simultaneously controlling the chain blocks of the auxiliary steel wire ropes to adjust until the two auxiliary steel wire ropes are stressed and tensioned.
And 11, after the giant side inclined truss is installed in place, repeating the steps 7-10 to complete the construction of adjusting the hoisting posture of the next truss.
The posture of the giant laterally inclined truss is adjusted through the pulley block and the chain block, so that the giant laterally inclined truss is adjusted from a horizontal splicing posture to an installation posture, the method can be applied to hoisting construction of steel structures such as an overweight special-shaped pipe truss and the like, and compared with the traditional hoisting method, the method has the following advantages:
(1) the hoisting posture adjusting method is simple and convenient to control, few in required temporary measures, convenient and fast, and capable of greatly reducing the human input.
(2) When the posture is adjusted, the pulley block can save labor for chain block of the main hoisting point, and the safety coefficient can be greatly improved.
Claims (1)
1. A hoisting posture adjusting method of a giant laterally inclined truss structure is characterized by comprising the following steps: comprises a main steel wire rope (1), an auxiliary steel wire rope (2), a chain block (3) and a safety rope (4), and the method comprises the following steps
Step 1, customizing a main steel wire rope (1), an auxiliary steel wire rope (2), a rope sleeve, a lifting lug, a set of pulley block, a chain block (3), a safety rope (4) and other hoisting devices;
2, welding lifting lugs to main pipes on two sides of the giant laterally-inclined truss in advance, and paying attention to the fact that welding positions need to deviate from the cross section of the truss where the center of gravity is located by 50cm, so that the posture is convenient to adjust and the main steel wire rope is guaranteed to be a main stress rope;
step 3, assembling the pulley block, the chain block and the safety rope corresponding to the chain block into a whole, and connecting the pulley block and the safety rope with two rope sleeves of the main steel wire rope by utilizing a shackle, namely the main steel wire rope is a double rope;
step 4, connecting the other two chain blocks and the corresponding safety ropes with the two auxiliary steel wire ropes respectively;
step 5, respectively threading the main steel wire ropes on hook heads on two sides of the lifting hook to ensure the stress balance of the lifting hook;
step 6, respectively winding the two auxiliary steel wire ropes on two sides of the lifting hook in a similar manner;
step 7, lifting the hook of the main crane, and reliably connecting the main steel wire rope and the pulley block which are not adjustable with the two lifting lugs respectively by utilizing the shackle;
step 8, sequentially threading the rope sling at the joint positions of the main pipes on the two sides, and respectively connecting the rope sling with the auxiliary steel wire rope and the safety rope by utilizing the shackle;
step 9, the main crane hooks the hook, and simultaneously adjusts the chain block corresponding to the pulley block, so that the two main steel wire ropes are stressed and tensioned;
step 10, assisting an auxiliary crane to lift a main pipe with a higher lower end, continuously lifting a hook by a main crane hook, and simultaneously controlling a chain block of an auxiliary steel wire rope to adjust until the two auxiliary steel wire ropes are stressed and tensioned;
and 11, after the giant side inclined truss is installed in place, repeating the steps 7-10 to complete the construction of adjusting the hoisting posture of the next truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441577.2A CN114180456A (en) | 2021-11-30 | 2021-11-30 | Hoisting posture adjusting method for giant laterally inclined truss structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441577.2A CN114180456A (en) | 2021-11-30 | 2021-11-30 | Hoisting posture adjusting method for giant laterally inclined truss structure |
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| CN114180456A true CN114180456A (en) | 2022-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075585A (en) * | 2022-07-20 | 2022-09-20 | 中国二十二冶集团有限公司 | Installation method of special-shaped space twisted steel pipe truss |
| CN116891180A (en) * | 2023-08-29 | 2023-10-17 | 广东省源天工程有限公司 | Main shaft hoisting method and auxiliary hoisting device for bulb tubular turbine unit |
-
2021
- 2021-11-30 CN CN202111441577.2A patent/CN114180456A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075585A (en) * | 2022-07-20 | 2022-09-20 | 中国二十二冶集团有限公司 | Installation method of special-shaped space twisted steel pipe truss |
| CN116891180A (en) * | 2023-08-29 | 2023-10-17 | 广东省源天工程有限公司 | Main shaft hoisting method and auxiliary hoisting device for bulb tubular turbine unit |
| CN116891180B (en) * | 2023-08-29 | 2023-12-15 | 广东省源天工程有限公司 | Main shaft hoisting method and auxiliary hoisting device for bulb tubular turbine unit |
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