CN107288354B - Construction method for overall displacement of gantry crane - Google Patents
Construction method for overall displacement of gantry crane Download PDFInfo
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- CN107288354B CN107288354B CN201610194839.2A CN201610194839A CN107288354B CN 107288354 B CN107288354 B CN 107288354B CN 201610194839 A CN201610194839 A CN 201610194839A CN 107288354 B CN107288354 B CN 107288354B
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- truck crane
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/163—Jacks specially adapted for working-up building elements
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- Machines For Laying And Maintaining Railways (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a construction method for integrally shifting a gantry crane, which comprises the following steps of firstly shifting the gantry crane to an empty field between A, B fields by using two cranes, enabling an outer side leg of the gantry crane to be seated on an inner side rail of a field B, enabling an inner side leg of the gantry crane to be seated on a sleeper temporarily arranged in advance on the empty field, then shifting the two cranes to a next hoisting position to lift the gantry crane, enabling the inner side leg of the gantry crane to be seated on the inner side rail of the field A, enabling the outer side leg of the gantry crane to be seated on the sleeper temporarily arranged in advance on the empty field, and finally shifting the two cranes to the next hoisting position and installing the gantry crane on the field A. The construction is convenient and fast according to the method, and the work efficiency is improved.
Description
The technical field is as follows:
the invention relates to a construction method for overall displacement of a gantry crane, and belongs to the field of steel structure engineering construction.
Secondly, background art:
a certain steel structure processing and manufacturing site has two processing sites A and B, the distance between the two processing sites is 30m, the span of the A, B two processing sites is 20m, each processing site is provided with a gantry crane, the beam of the gantry crane is of a truss structure, the height of the gantry crane is 14m, and the total weight of the structure is 20 t.
Thirdly, the invention content:
aiming at the defects of the prior art, the invention provides the construction method for the integral displacement of the gantry crane, which is simple to operate and quick to construct.
The invention aims to solve the technical problem of providing a construction method for integrally shifting a gantry crane, which comprises the following steps:
1. and (3) flattening and compacting A, B two processing and manufacturing sites and an empty site between the two sites to meet the hoisting operation requirement of a crane.
2. And the gantry crane of the site B adopts two-point hoisting, the hoisting point position is selected from 1/4 positions in the midspan of a beam of the gantry crane, two 120t truck cranes are respectively stood at two sides of the gantry crane on the site B during hoisting, one truck crane stands on the empty site and is close to the track of the site B adjacent to the empty site, the other truck crane stands on the site B and is close to the track of the site B adjacent to the empty site, and the two crane stations meet the crane performance requirements.
3. The two cranes hoist simultaneously, when the height of the two cranes is 500mm from the ground, the two cranes rotate slowly to the empty place at the same time, when the landing leg of one side of the gantry crane, which is far away from the A field, is positioned above the track of the B field adjacent to the empty field, the two cranes descend slowly at the same time, so that the landing leg of one side of the gantry crane, which is far away from the A field, is seated on the track of the B field adjacent to the empty field, and the landing leg of one side of the gantry crane, which is close to the A field, is seated on a sleeper temporarily arranged on the empty field in.
4. After the gantry crane is temporarily fixed by a dragging rope, the two cranes return to hooks, the crane positioned on the empty site and close to the track of the site B adjacent to the empty site is shifted to the track of the empty site and close to the site A adjacent to the empty site, the other crane positioned in the site B is shifted to the position close to the middle of the empty site on the opposite side of the other crane, and the two crane stations meet the performance requirements of the cranes.
5. The two cranes hoist simultaneously, when the height of the two cranes is 500mm from the ground, the two cranes rotate slowly towards the A field direction simultaneously, when the landing leg of one side of the gantry crane close to the A field is positioned above the track of the A field adjacent to the vacant field, the two cranes descend slowly simultaneously, so that the landing leg of one side of the gantry crane close to the A field is seated on the track of the A field adjacent to the vacant field, and the landing leg of one side of the gantry crane far away from the A field is seated on a sleeper temporarily arranged in advance on the vacant field.
6. After the gantry crane is temporarily fixed by a dragging rope, the two cranes return to hooks, the crane positioned on the empty site and close to the track of the A site adjacent to the empty site is shifted to the track of the A site adjacent to the empty site in the A site, the other crane positioned near the middle position of the empty site is shifted to the track of the empty site and close to the A site adjacent to the empty site, and the two crane stations meet the performance requirements of the cranes.
7. The two cranes hoist simultaneously, when the two cranes lift 500mm from the ground, the two cranes rotate slowly to the A field, when the two side legs of the gantry crane are positioned above the track of the A field, the two cranes descend slowly at the same time, so that the legs of the gantry crane are seated on the track of the A field, and the displacement installation work of the gantry crane is completed.
The invention has the following beneficial and positive effects: the invention has simple operation, improves the working efficiency and can obviously reduce the construction cost.
Description of the drawings
FIG. 1: step 2 state diagram of the present invention
FIG. 2: step 3 state diagram of the present invention
FIG. 3: step 4 state diagram of the present invention
FIG. 4: step 5 state diagram of the present invention
FIG. 5: step 6 state diagram of the present invention
FIG. 6: step 7 state diagram of the present invention
Fifth, detailed description of the invention
The first embodiment is as follows: referring to fig. 1, 2, 3, 4, 5 and 6, the invention relates to a construction method for overall displacement of a gantry crane, which comprises the following steps:
1. a, B, flattening and compacting the two processing and manufacturing sites and the empty site between the two sites to meet the hoisting operation requirements of the crane 1 and the crane 2.
2. The gantry crane 3 of the site B is hoisted by two points, the position of the hoisting point is selected from 1/4 positions in the midspan of a beam of the gantry crane 3, two 120t truck cranes 1 and 2 are selected to respectively stand on two sides of the gantry crane 3 during hoisting, the crane 1 stands on the empty site and is close to the track of the site B adjacent to the empty site, the crane 2 stands on the site B and is close to the track of the site B adjacent to the empty site, and the two crane 1 and 2 stations meet the performance requirements of the cranes 1 and 2.
3. The two cranes 1 and 2 are lifted simultaneously, when the height of the two cranes is 500mm, the two cranes 1 and 2 rotate slowly to the empty space at the same time, when the landing leg of the gantry crane 3 far away from one side of the A field is positioned above the track of the B field adjacent to the empty field, the two cranes 1 and 2 descend slowly at the same time, so that the landing leg of the gantry crane 3 far away from one side of the A field is seated on the track of the B field adjacent to the empty field, and the landing leg of the gantry crane 3 close to one side of the A field is seated on a sleeper temporarily arranged on the empty field in advance.
4. After the gantry crane 3 is temporarily fixed by a dragging rope, the two cranes 1 and 2 return to hooks, the crane 1 is shifted to the position on the empty site close to the track of the site A adjacent to the empty site, the crane 2 is shifted to the position close to the middle of the empty site on the opposite side of the crane, and the two cranes 1 and 2 are positioned to meet the performance requirements of the cranes 1 and 2.
5. The two cranes 1 and 2 are lifted simultaneously, when the height of the two cranes is 500mm, the two cranes 1 and 2 rotate towards the A field slowly, when the landing leg of one side of the gantry crane 3 close to the A field is positioned above the track of the A field adjacent to the vacant field, the two cranes 1 and 2 descend slowly simultaneously, so that the landing leg of one side of the gantry crane 3 close to the A field is seated on the track of the A field adjacent to the vacant field, and the landing leg of one side of the gantry crane 3 far away from the A field is seated on a sleeper temporarily arranged on the vacant field in advance.
6. After the gantry crane 3 is temporarily fixed by a dragging rope, the two cranes 1 and 2 return to hooks, the crane 1 is shifted to a position close to a track of a field A adjacent to an empty field in the field A, the crane 2 is shifted to a position close to the track of the field A adjacent to the empty field in the empty field, and the two cranes 1 and 2 are positioned to meet the performance requirements of the cranes 1 and 2.
7. The two cranes 1 and 2 hoist simultaneously, when the two cranes 1 and 2 are lifted 500mm away from the ground, the two cranes 1 and 2 rotate slowly to the A field, and when the support legs at the two sides of the gantry crane 3 are positioned above the track of the A field, the two cranes 1 and 2 descend slowly simultaneously, so that the support legs of the gantry crane 3 are seated on the track of the A field, and the displacement installation work of the gantry crane 3 is completed.
Claims (1)
1. A construction method for overall displacement of a gantry crane comprises the following steps:
(1) a, B, flattening and compacting the two processing and manufacturing sites and the empty site between the two sites to meet the requirements of truck crane hoisting operation;
(2) a gantry crane (3) at a site B is hoisted by two points, the position of a hoisting point is selected at 1/4 in the midspan of a beam of the gantry crane (3), two 120t truck cranes I and two truck cranes II are selected to respectively stand at two sides of the gantry crane (3) during hoisting, one truck crane is standing on the empty site and is close to a track on the site B, which is adjacent to the empty site, and the other truck crane is standing on the site B and is close to the track on the empty site, so that the station positions of the truck cranes I and the truck cranes II meet the performance requirements of the truck cranes I and the truck cranes II;
(3) the first truck crane and the second truck crane are lifted simultaneously, when the height of the first truck crane and the second truck crane is 500mm away from the ground, the first truck crane and the second truck crane rotate slowly towards the empty place at the same time, when the support leg of the gantry crane (3) far away from the side of the site A is positioned above the track adjacent to the empty place on the site B, the first truck crane and the second truck crane descend slowly at the same time, the support leg of the gantry crane (3) far away from the side of the site A is seated on the track adjacent to the empty place on the site B, and the support leg of the gantry crane (3) close to the side of the site A is seated on a sleeper temporarily arranged on the empty place in advance;
(4) after the gantry crane (3) is temporarily fixed by a dragging rope, the first truck crane and the second truck crane return hooks, the first truck crane is shifted to a position close to a track on the A site and adjacent to the empty site, and the second truck crane is shifted to a position close to the middle of the empty site on the opposite side of the first truck crane and the second truck crane, so that the station positions of the first truck crane and the second truck crane meet the performance requirements of the first truck crane and the second truck crane;
(5) the first truck crane and the second truck crane are lifted simultaneously, when the height of the first truck crane and the second truck crane is 500mm away from the ground, the first truck crane and the second truck crane rotate slowly towards the site A, when the support leg of the gantry crane (3) close to the site A is positioned above the track adjacent to the empty site on the site A, the first truck crane and the second truck crane descend slowly simultaneously, so that the support leg of the gantry crane (3) close to the site A is seated on the track adjacent to the empty site on the site A, and the support leg of the gantry crane (3) far away from the site A is seated on a sleeper temporarily arranged on the empty site in advance;
(6) after the gantry crane (3) is temporarily fixed by a dragging rope, the first truck crane and the second truck crane return hooks, the first truck crane is shifted to the site A and is close to a track on the site A, which is adjacent to an empty site, and the second truck crane is shifted to a track on the empty site, which is close to the site A, which is adjacent to the empty site, so that the station positions of the first truck crane and the second truck crane meet the performance requirements of the first truck crane and the second truck crane;
(7) and the first truck crane and the second truck crane are lifted simultaneously, when the height of the first truck crane and the second truck crane is 500mm away from the ground, the first truck crane and the second truck crane rotate slowly towards the site A, and when the support legs at the two sides of the gantry crane (3) are positioned above the track of the site A, the first truck crane and the second truck crane descend slowly simultaneously, so that the support legs of the gantry crane (3) are seated on the track of the site A, and the displacement installation work of the gantry crane (3) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610194839.2A CN107288354B (en) | 2016-04-01 | 2016-04-01 | Construction method for overall displacement of gantry crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610194839.2A CN107288354B (en) | 2016-04-01 | 2016-04-01 | Construction method for overall displacement of gantry crane |
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| Publication Number | Publication Date |
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| CN107288354A CN107288354A (en) | 2017-10-24 |
| CN107288354B true CN107288354B (en) | 2020-05-12 |
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| CN113697687B (en) * | 2021-08-26 | 2023-03-31 | 中国建筑一局(集团)有限公司 | Method for quickly hoisting underground multi-layer double-T-plate structure and positioning fixture thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659027A (en) * | 2012-05-23 | 2012-09-12 | 中铁上海工程局有限公司 | Variable-span transit method for girder-erecting gantry crane |
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| JPH08338136A (en) * | 1995-06-14 | 1996-12-24 | Fujita Corp | Elevator device for construction |
| CN101775907A (en) * | 2010-01-22 | 2010-07-14 | 北京首钢建设集团有限公司 | Space truss structure aerial pairing integral slide installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659027A (en) * | 2012-05-23 | 2012-09-12 | 中铁上海工程局有限公司 | Variable-span transit method for girder-erecting gantry crane |
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