CN116735240A - Debugging method suitable for static load test of marine platform lifeboat creel - Google Patents
Debugging method suitable for static load test of marine platform lifeboat creel Download PDFInfo
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- CN116735240A CN116735240A CN202310480893.3A CN202310480893A CN116735240A CN 116735240 A CN116735240 A CN 116735240A CN 202310480893 A CN202310480893 A CN 202310480893A CN 116735240 A CN116735240 A CN 116735240A
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- lifeboat
- keel block
- static load
- lifting
- load test
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000003068 static effect Effects 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a debugging method suitable for a static load test of a marine platform lifeboat keel block, which enables a lower counterweight to uniformly act on two sides of the keel block by using a supporting rod, so that the test requirement of synchronous stress on two sides of the keel block is met, in the counterweight suspension process, the counterweight has no falling risk, personnel can withdraw to a safety area in the counterweight lifting process, accident hidden danger is reduced to the greatest extent, a crane can play a role in protecting in the static load test process besides being used as lifting and descending power of the test counterweight, and once the risk of keel block bending, weld cracks and the like caused by unqualified keel block quality and welding quality occurs, the counterweight can be lifted at any time, thereby avoiding further expansion of accidents.
Description
Technical Field
The invention relates to the field of lifeboat keel block static load tests in offshore oil engineering, in particular to a debugging method suitable for an ocean platform lifeboat keel block static load test.
Background
In the ocean engineering construction stage, before the lifeboat is installed, a 2.2 times SWL (rated safety load) static load test is required to be carried out on the lifeboat creel. In the prior art, one method is as follows: the balance weights are placed on the ground, the two groups of balance weights are respectively located under two sides of the keel block, the hanging strip, the chain block and the balance weights are sequentially connected and fixed from the upper part of the keel block to the ground, and the balance weights are gradually lifted through chain block lifting until the balance weights are completely separated from the ground to reach a test load; the other method is that hanging straps are hung on two sides of the keel block, the hanging straps hang at about 1.5 meters away from the ground, two sets of counterweights are forked by two forklifts, and after the counterweights are connected and fixed with the hanging straps by constructors, the forklifts are synchronously arranged below until the counterweights are hung in the air.
The prior art has the following problems:
1. the existing debugging method suitable for the static load test of the marine platform lifeboat keel block is difficult to achieve synchronous lifting (lower) of the balance weights at the two sides of the keel block, so that the stress at the two sides of the keel block is uneven in the initial stage of the test, and the keel block is easy to damage;
2. the existing debugging method suitable for the static load test of the marine platform lifeboat keel frame is easy to cause the accident of sliding of the counterweight and injury of the constructors when the constructors drag the chain down or tie and fix the counterweight;
3. the existing debugging method suitable for the static load test of the marine platform lifeboat keel frame is limited in marine site counterweight resources, and the test load difference of the lifeboats in different projects is large, so that the situation that the counterweight resources cannot meet test requirements is often faced.
Disclosure of Invention
The invention discloses a debugging method suitable for a static load test of a marine platform lifeboat keel block, which solves the problem that the stress on two sides of the initial stage keel block of the test is uneven in the prior art.
In order to solve the technical problems, the invention provides a debugging method suitable for a static load test of a marine platform lifeboat keel block, which is completed through the following steps:
s1, prefabricating a stay bar, wherein a group of lifting lugs are respectively arranged on the left side and the right side of the stay bar, and a plurality of lifting lugs are respectively arranged on the upper side and the lower side of the stay bar:
s2, connecting one ends of the two first suspenders with a first lifting lug on the upper side of the supporting rod through a shackle, connecting one ends of the two second suspenders with a second lifting lug on the upper side of the supporting rod through a shackle, wherein the second lifting lug is positioned on the outer side of the first lifting lug, and connecting one ends of the two groups of third suspenders with a third lifting lug below the supporting rod through a shackle;
s3, an operator releases the two traction ropes from the keel block and connects the two traction ropes with the other end of the second suspender, and connects the other end of the first suspender with the lifting hook of the crane;
s4, slowly hooking the crane, pulling the first sling, and connecting the balancing weight below the supporting rod with the lower end of the third sling when the lower end of the third sling is positioned at the connecting position of the balancing weight;
s5, the crane slowly lifts the hook again, and an operator positioned on the keel block synchronously lifts the second suspender upwards by using the traction rope until the second suspender can be connected with two ends of the keel block;
s6, after the other end of the second hanging strip is fixedly connected with the keel block, people above the keel block withdraw to a safe area, the crane slowly lowers the hook head until the second hanging strip is tightened, and loads are completely transferred to two sides of the keel block through the crane lifting hook, so that debugging of a static load test of the marine platform lifeboat keel block is completed.
Furthermore, the crane should be a crawler crane or an automobile crane to flexibly cope with complex and changeable field environments in the ocean engineering construction stage.
Further, an included angle alpha formed by the first hanging strip and the stay bar is not smaller than 60 degrees.
Further, the included angle formed by the second suspender and the stay bar is a right angle.
Further, the third hanging strip is provided with two groups of two pieces, and an included angle beta formed by the third hanging strip supporting rod is not smaller than 60 degrees.
Further, each group of lifting lugs is provided with 12, 6 lifting lugs are respectively arranged on the upper side and the lower side of the supporting rod, the distance between two adjacent lifting lugs on the same side of each group is 250mm, the minimum distance between two groups of lifting lugs is 5500mm, and the maximum distance between two groups of lifting lugs is 8000mm. .
The invention has the technical effects that: the invention discloses a debugging method suitable for a static load test of a marine platform lifeboat keel block, which enables a lower counterweight to uniformly act on two sides of the keel block by using a supporting rod, so that the test requirement of synchronous stress on two sides of the keel block is met, in the counterweight suspension process, the counterweight has no falling risk, personnel can withdraw to a safety area in the counterweight lifting process, accident hidden danger is reduced to the greatest extent, a crane can play a role in protecting in the static load test process besides being used as lifting and descending power of the test counterweight, and once the risk of keel block bending, weld cracks and the like caused by unqualified keel block quality and welding quality occurs, the counterweight can be lifted at any time, thereby avoiding further expansion of accidents.
Drawings
Fig. 1 is a schematic diagram of a balancing weight during hoisting in a debugging method suitable for a static load test of a marine platform lifeboat keel block according to an embodiment of the invention.
Fig. 2 is a front view of a stay bar in a debugging method suitable for a static load test of a marine platform lifeboat keel frame according to the embodiment of the invention.
Reference numerals: 1. a first sling; 2. a second sling; 3. a third sling; 4. a keel block; 5. shackle off; 6. a brace rod; 7. balancing weight; 8. a crane hook; 9. lifting lugs; 10. and a through hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.
The embodiment of the invention provides a debugging method suitable for a static load test of a marine platform lifeboat keel block, which is completed by the following steps of:
s1, prefabricating a supporting rod 6, wherein a group of lifting lugs 9 are respectively arranged on the left side and the right side of the supporting rod 6, and a plurality of lifting lugs 9 are respectively arranged on the upper side and the lower side of the supporting rod 6:
s2, connecting one ends of the two first hanging strips 1 with a first lifting lug 9 on the upper side of a supporting rod 6 through a shackle 5, connecting one ends of the two second hanging strips 2 with a second lifting lug 9 on the upper side of the supporting rod 6 through the shackle 5, wherein the second lifting lug 9 is positioned on the outer side of the first lifting lug 9, and connecting one ends of the two groups of third hanging strips 3 with a third lifting lug 9 below the supporting rod 6 through the shackle 5;
s3, an operator releases the two traction ropes from the boat frame 4 and connects the two traction ropes with the other end of the second suspender 2, and connects the other end of the first suspender 1 with the crane hook 8;
s4, slowly hooking the crane, pulling the first sling 1, and connecting the balancing weight 7 positioned below the stay bar 6 with the lower end of the third sling 3 when the lower end of the third sling 3 is positioned at the connecting position of the balancing weight 7;
s5, the crane slowly hooks again, and an operator positioned on the keel block 4 synchronously pulls up the second suspender 2 by using a traction rope until the second suspender 2 can be connected with two ends of the keel block 4;
s6, after the other end of the second hanging strip 2 is fixedly connected with the keel block 4, people above the keel block 4 withdraw to a safe area, the crane slowly lowers the hook head until the second hanging strip 2 is tightened, and loads are transferred to two sides of the keel block 4 through the crane hooks 8, so that debugging of static load tests of the marine platform lifeboat keel block 4 is completed.
The crane is a crawler crane or an automobile crane so as to flexibly cope with complex and changeable field environments in the ocean engineering construction stage.
In order to meet the safety requirement, an included angle alpha formed by the first hanging strip 1 and the supporting rod 6 is not smaller than 60 degrees, an included angle formed by the second hanging strip 2 and the supporting rod 6 is a right angle, the third hanging strip 3 is provided with two groups of two pieces, and an included angle beta formed by the supporting rod 6 of the third hanging strip 3 is not smaller than 60 degrees.
Each group of lifting lugs 9 is provided with 12, 6 lifting lugs are respectively arranged on the upper side and the lower side of the stay bar 6, the distance between two adjacent lifting lugs 9 on the same side of each group is 250mm, the minimum distance between the two groups of lifting lugs 9 is 5500mm, and the maximum distance is 8000mm, so as to meet the requirements of the lifeboat crews 4 of different projects on the size
The positions of the second sling 2 and the lifting lug 9 on the upper side of the stay bar 6 are selected according to the length of the keel block 4, so that the second sling 2 is perpendicular to the stay bar 6, and the length of the second sling 2 is selected as much as possible so that the balancing weight 7 is about 200mm away from the ground in a static load test. The second lifting lug 9 and the third lifting lug 9 should be on the same vertical line, and the first lifting lug 9 and the second lifting lug 9 should be adjacent or share one lifting lug 9 so as to avoid damage to the supporting rod 6 caused by uneven stress. The stay bar 6 is of a circular tube structure, lifting lugs 9 are arranged on two sides of the stay bar 6, and through holes 10 are formed in the lifting lugs 9 and used for connecting the shackle 5. The weight 7 is selected according to the specific test load, and the weight of the weight 7 is the test load minus the weights of the stay bar 6, the shackle 5 and the sling.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (6)
1. The debugging method suitable for the static load test of the marine platform lifeboat creel is completed through the following steps of:
s1, prefabricating a stay bar, wherein a group of lifting lugs are respectively arranged on the left side and the right side of the stay bar, and a plurality of lifting lugs are respectively arranged on the upper side and the lower side of the stay bar:
s2, connecting one ends of the two first suspenders with a first lifting lug on the upper side of the supporting rod through a shackle, connecting one ends of the two second suspenders with a second lifting lug on the upper side of the supporting rod through a shackle, wherein the second lifting lug is positioned on the outer side of the first lifting lug, and connecting one ends of the two groups of third suspenders with a third lifting lug below the supporting rod through a shackle;
s3, an operator releases the two traction ropes from the keel block and connects the two traction ropes with the other end of the second suspender, and connects the other end of the first suspender with the lifting hook of the crane;
s4, slowly hooking the crane, pulling the first sling, and connecting the balancing weight below the supporting rod with the lower end of the third sling when the lower end of the third sling is positioned at the connecting position of the balancing weight;
s5, the crane slowly lifts the hook again, and an operator positioned on the keel block synchronously lifts the second suspender upwards by using the traction rope until the second suspender can be connected with two ends of the keel block;
s6, after the other end of the second hanging strip is fixedly connected with the keel block, people above the keel block withdraw to a safe area, the crane slowly lowers the hook head until the second hanging strip is tightened, and loads are completely transferred to two sides of the keel block through the crane lifting hook, so that debugging of a static load test of the marine platform lifeboat keel block is completed.
2. The debugging method suitable for static load test of marine platform lifeboat crews according to claim 1 is characterized in that: the crane is a crawler crane or an automobile crane so as to flexibly cope with complex and changeable field environments in the ocean engineering construction stage.
3. The debugging method suitable for static load test of marine platform lifeboat crews according to claim 1 is characterized in that: the included angle alpha formed by the first suspender and the stay bar is not smaller than 60 degrees.
4. The debugging method suitable for static load test of marine platform lifeboat crews according to claim 1 is characterized in that: the included angle formed by the second suspender and the stay bar is a right angle.
5. The debugging method suitable for static load test of marine platform lifeboat crews according to claim 1 is characterized in that: the third hanging strip is provided with two groups of two, and the included angle beta formed by the third hanging strip supporting rods is not smaller than 60 degrees.
6. The debugging method suitable for static load test of marine platform lifeboat crews according to claim 1 is characterized in that: each group of lifting lugs is provided with 12 lifting lugs, 6 lifting lugs are respectively arranged on the upper side and the lower side of the supporting rod, the distance between every two adjacent lifting lugs on the same side of each group is 250mm, the minimum distance between the two groups of lifting lugs is 5500mm, and the maximum distance between the two groups of lifting lugs is 8000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480893.3A CN116735240A (en) | 2023-04-28 | 2023-04-28 | Debugging method suitable for static load test of marine platform lifeboat creel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480893.3A CN116735240A (en) | 2023-04-28 | 2023-04-28 | Debugging method suitable for static load test of marine platform lifeboat creel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116735240A true CN116735240A (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310480893.3A Pending CN116735240A (en) | 2023-04-28 | 2023-04-28 | Debugging method suitable for static load test of marine platform lifeboat creel |
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| Country | Link |
|---|---|
| CN (1) | CN116735240A (en) |
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2023
- 2023-04-28 CN CN202310480893.3A patent/CN116735240A/en active Pending
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