CN103193163B - Entrance dock installation method for gantry crane of shipyard - Google Patents

Entrance dock installation method for gantry crane of shipyard Download PDF

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Publication number
CN103193163B
CN103193163B CN201210005671.8A CN201210005671A CN103193163B CN 103193163 B CN103193163 B CN 103193163B CN 201210005671 A CN201210005671 A CN 201210005671A CN 103193163 B CN103193163 B CN 103193163B
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CN
China
Prior art keywords
leg
girder
drag
line
flexible
Prior art date
Application number
CN201210005671.8A
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Chinese (zh)
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CN103193163A (en
Inventor
李森
余良辉
钱亮亮
顾小海
黄春娟
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上海振华重工(集团)股份有限公司
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Priority to CN201210005671.8A priority Critical patent/CN103193163B/en
Publication of CN103193163A publication Critical patent/CN103193163A/en
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Publication of CN103193163B publication Critical patent/CN103193163B/en

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Abstract

The invention provides an entrance dock installation method for gantry crane of shipyard. The method comprises the steps of: arranging a rigid leg cart walking mechanism and a flexible leg cart walking mechanism in preset positions; hoisting and erecting a rigid leg and a flexible leg, respectively connecting the two with the rigid leg cart walking mechanism and the flexible leg cart walking mechanism, and installing inhaul cables fixed on the ground on both sides of the rigid leg and the flexible leg; tightening the inhaul cables; installing sea wind ropes at both ends of a girder, and fixing one end of the rope on a floating crane; and hoisting the girder by the floating crane, and connecting the girder with the rigid leg and the flexible leg. The invention has advantages of short construction period, small space occupation, and no effect on production of a user.

Description

The Entrance dock installation method of gantry crane of shipyard
Technical field
The present invention relates to a kind of Entrance dock installation method of gantry crane of shipyard, particularly relate to a kind of Entrance dock installation method of gantry crane of shipyard of large gauge.
Background technology
In prior art, gantry crane is owing to being subject to the restriction of hanging device, ships that transport, mostly adopt fragmented transport, on-site consolidation girder and hard and soft leg structure, then adopt giant caterpillar lifting or mast lifting, or adopt double tower frame to add the method such as steel strand, hydraulic ram system improving to install.The installation period of above-mentioned mount scheme is long, and foundation of civil work has high input, long to user place holding time, has an immense impact on to the production of user.Meanwhile, because on-site consolidation girder and firm, flexible leg need a large amount of assembled moulding beds and Large-scale Hoisting equipment, and need a large amount of on-the-spot structures to form personnel, on-the-spot erected cost is added.Thus, user and maker all wish the dock entrance general assembly that can realize gantry crane, both having reduced the impact on producing, and having reduced erected cost again.
But, once had during harbour installation in factory for small-sized gantry formula hoisting crane or on manufacturing in the past and adopted the mounting means that separate unit crane barge lifts or dual stage crane barge lifts, but for large gauge (gauge >=160m) gantry crane in seagoing vessel depressed place, face, because girder slenderness ratio is larger, and be subject to the impact of stormy waves especially surge, lifting poor stability, adds the restriction of crane barge height and its ability, not the precedent of single crane hoisting.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Entrance dock installation method of gantry crane of shipyard, can reduce the impact of stormy waves and surge, shortens construction period, reduces place and takies.
For solving the problems of the technologies described above, the invention provides a kind of Entrance dock installation method of gantry crane of shipyard, comprising:
Rigid leg cart walking mechanism and flexible leg cart walking mechanism are arranged in predeterminated position;
Rigid leg is erect with flexible leg lifting and is connected with described rigid leg cart walking mechanism and flexible leg cart walking mechanism respectively, installs in the both sides of described rigid leg and flexible leg the drag-line fixed on the ground respectively additional;
Described drag-line is tightened up;
Install unrestrained wind rope additional at the two ends of girder, one end of described unrestrained wind rope is fixed on crane barge;
Use described crane barge to be sling by described girder, and described girder is connected with described rigid leg and flexible leg.
Alternatively, described drag-line is connected with winch.
Alternatively, described drag-line is also connected with cable force measurement device.
Alternatively, on the earth anchor fixed on the ground of described drag-line or checking bollard.
Alternatively, described drag-line comprises top drag-line and bottom drag-line, before described rigid leg and flexible leg are erect, described top drag-line is connected on described rigid leg and flexible leg, one end of described bottom drag-line fixes on the ground, after described rigid leg and flexible leg are erect, described top drag-line is connected with bottom drag-line.
Alternatively, described unrestrained wind rope is connected with winch.
Alternatively, use described crane barge to be sling by described girder to comprise:
Described girder is arranged on lifting joist, described lifting joist has hanger;
Described crane barge is used to be sling by described girder by the hanger on described joist.
Alternatively, shearing-resistance blocks is used to be fixed between described joist and girder.
Alternatively, described girder is connected with described rigid leg and flexible leg after also comprise:
Described crane barge is used to lift upper and lower dolly and maintenance crane respectively.
Compared with prior art, the present invention has the following advantages:
In the Entrance dock installation method of the gantry crane of shipyard of the embodiment of the present invention, after rigid leg and flexible leg are erect, rigid leg and flexible leg install drag-line additional and tightens up drag-line and rigid leg and flexible leg are stablized, and in the process of lifting girder, unrestrained wind rope is installed additional to improve stability and the wind loading rating of girder at the two ends of girder, the construction period of installation process is shorter, and place takies less.
Further, the drag-line of the embodiment of the present invention is also connected with winch and cable force measurement device, the degree of tightening up of drag-line can be adjusted easily and monitor Cable forces in time.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the Entrance dock installation method of embodiment of the present invention gantry crane of shipyard;
Fig. 2 is the structural representation of flexible leg hoisting process in the embodiment of the present invention;
Fig. 3 is the structural representation of rigid leg hoisting process in the embodiment of the present invention;
Fig. 4 is the drag-line distributed architecture schematic diagram in the embodiment of the present invention on flexible leg and rigid leg;
Fig. 5 is the birds-eye view of Fig. 4;
Fig. 6 is the structural representation of embodiment of the present invention middle girder hoisting process;
Fig. 7 is the partial enlarged drawing in region 52 in Fig. 6;
Fig. 8 is the sectional structure chart of the lifting joist in the embodiment of the present invention;
Fig. 9 is the birds-eye view of the lifting joist in the embodiment of the present invention.
Detailed description of the invention
In prior art, the gantry crane of large gauge can be subject to the impact of stormy waves especially surge when carrying out dock entrance and installing, lifting poor stability, is difficult to realize single crane hoisting.
In the Entrance dock installation method of the gantry crane of shipyard of the embodiment of the present invention, after rigid leg and flexible leg are erect, rigid leg and flexible leg install drag-line additional and tightens up drag-line and rigid leg and flexible leg are stablized, and in the process of lifting girder, unrestrained wind rope is installed additional to improve stability and the wind loading rating of girder at the two ends of girder, the construction period of installation process is shorter, and place takies less.
Further, the drag-line of the embodiment of the present invention is also connected with winch and cable force measurement device, the degree of tightening up of drag-line can be adjusted easily and monitor Cable forces in time.
Below in conjunction with specific embodiments and the drawings, the invention will be further described, but should not limit the scope of the invention with this.
Fig. 1 shows the schematic flow sheet of the Entrance dock installation method of the gantry crane of shipyard of the present embodiment, comprising:
Step S11, is arranged in predeterminated position by rigid leg cart walking mechanism and flexible leg cart walking mechanism;
Step S12, erects by rigid leg with flexible leg lifting and is connected with described rigid leg cart walking mechanism and flexible leg cart walking mechanism respectively, installing in the both sides of described rigid leg and flexible leg the drag-line fixed on the ground respectively additional;
Step S13, tightens up described drag-line;
Step S14, installs unrestrained wind rope additional at the two ends of girder, and one end of described unrestrained wind rope is fixed on crane barge;
Step S15, uses described crane barge to be sling by described girder, and is connected with described rigid leg and flexible leg by described girder.
Particularly, in step s 11, the mounting center line of gantry crane can be marked at dock entrance, the size at mounting center linear distance harbour edge need be considered, guarantee to meet crane barge and have sufficient working space on the water, need the deployment scenarios in conjunction with earth anchor or checking bollard simultaneously, ensure that checking bollard or the stressed of earth anchor meet the demands.Afterwards, arrange cart walking mechanism according to the line of centers marked, and utilize processing support to carry out firmly, after rigid leg cart walking mechanism and flexible leg cart walking mechanism have been arranged, need to measure Diagonal Dimension and squareness, to ensure to meet installation requirement.
Step S12 and step S13 please refer to Fig. 2 to Fig. 5.Fig. 2 shows the hoisting process of flexible leg, adopts crane barge 11 that flexible leg 21 is lifted setting, and is connected with flexible leg cart walking mechanism 31.More concrete, at the upper design lifting hanger of flexible leg 21, then can adopt crane barge 11 that setting is stood up in flexible leg 21 lifting, and be connected with flexible leg cart walking mechanism 31.Afterwards, composition graphs 4 and Fig. 5 simultaneously, inside and outside flexible leg 21, both sides (namely flexible leg 21 is towards the side of rigid leg 22 and relative opposite side) installs drag-line 41 additional, one end of drag-line 41 is fixed on flexible leg 21, the other end fixes on the ground, such as, on the earth anchor fixed on the ground or checking bollard 42.As a preferred embodiment, drag-line 41 is connected with winch 43 and cable force measurement device (not shown), and tightens up stay rope 41 according to the pulling tension requirements preset.
Fig. 3 shows the hoisting process of rigid leg, adopts crane barge 11 that rigid leg 22 is lifted setting, and is connected with rigid leg cart walking mechanism 32.More specifically, at the upper design lifting hanger of rigid leg 22, then can adopt crane barge 11 that setting is stood up in rigid leg 22 lifting, and be connected with rigid leg cart walking mechanism 32.Afterwards, composition graphs 4 and Fig. 5 simultaneously, inside and outside rigid leg 22, both sides (namely rigid leg 22 is towards the side of flexible leg 21 and relative opposite side) installs drag-line 41 additional, one end of drag-line 41 is fixed on rigid leg 22, the other end fixes on the ground, such as, on the earth anchor fixed on the ground or checking bollard 42.As a preferred embodiment, drag-line 41 is connected with winch 43 and cable force measurement device (not shown), and tightens up stay rope 41 according to the pulling tension requirements preset.Flexible leg 21 and rigid leg 22 erect and adopt drag-line 41 carry out stable after, crotch size can be regulated out, to facilitate the connection between follow-up and girder.
In addition, conveniently stay rope 41, can be divided into top drag-line and bottom drag-line by drag-line 41, before rigid leg 22 and flexible leg 21 lift setting, first top drag-line is connected on rigid leg 22 and flexible leg 21, on the earth anchor that bottom drag-line is fixed on the ground or checking bollard 42; After rigid leg 22 and flexible leg 21 lift setting, then top drag-line is connected with bottom drag-line.
Step S14 and step S15 can reference diagram 6 to Fig. 9.First with reference to figure 6, adopt crane barge 11 to be sling by girder 51, and girder 51 is connected with rigid leg 22 and flexible leg 21.Particularly, composition graphs 7 to Fig. 9 simultaneously, is first arranged on girder 51 on lifting joist 61, adopts shearing-resistance blocks (not shown) to be connected and fixed, prevent relative sliding between lifting joist 61 and girder 51.
Lifting joist 61 has hanger, girder 51 does not install hanger, the suspension hook of crane barge 21 is articulated on the hanger on lifting joist 61 by steel rope 62 and lifts, make girder 51 local load in hoisting process more even, reduce the height of suspension centre simultaneously, reduce steel rope lifting angle, larger hoisting span can be chosen under same hoisting height, make the hinge on crane barge 11 top stressed more reasonable, the lifting stability of girder 51 is higher.
Rock when lifting to prevent girder 51, unrestrained wind rope (not shown) need be connected at the two ends of girder 51 before lifting, the other end of wave wind rope is fixed on crane barge 11, specifically can be fixed on the stern left and right sides of crane barge 11, wave wind rope can be connected with winch (such as 16T winch), in hoisting process, unrestrained wind rope is suitably stressed, reduces girder 51 because surge or wind carry rocking of generation, effectively can adjust stability and the wind loading rating of girder 51.
Girder 51 is sling to the height preset, can first be connected with rigid leg 22, utilize the guide type shoe be arranged in advance on rigid leg 22 to position, put on bolt with flange, and then adjust flexible leg 21 and be connected with girder 51, to have good positioning flexible hinge, slowly unload girder afterwards, itself and flexible hinge are pressed close to, the weld seam between the good flexible hinge of welding and girder 51, last all unloadings, remove lifting joist 61.
In the process that girder 51 is connected with rigid leg 22, flexible leg 21, need to monitor at any time the stressing conditions of the drag-line 41 be connected on rigid leg 22 and flexible leg 21, timely adjustment, to ensure the stable of rigid leg 22 and flexible leg 21, and prevents drag-line 51 stress overloading.
Afterwards, use crane barge to lift upper and lower dolly and maintenance crane respectively, and colligation is firm, completes the hoisting process of complete machine main structure.
Such as, according to the scheme in above-described embodiment, the girder of Qingdao City Beihai Ship Yard 600T*182M gantry crane is conducted oneself with dignity about 2800T, and girder upper level about 94 meters, adopts 4000T crane barge to coordinate two to lift joist single crane hoistings, crane barge hoisting height 110 meters, lifting joist is installed and is opened crotch 30 meters, monitors in time, complete dock entrance lifting operation smoothly in hoisting process, on the production of user almost without any impact, the program also receives affirmative and the employing of other users.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.

Claims (7)

1. an Entrance dock installation method for gantry crane of shipyard, is characterized in that, comprising:
Rigid leg cart walking mechanism and flexible leg cart walking mechanism are arranged in predeterminated position;
Rigid leg is erect with flexible leg lifting and is connected with described rigid leg cart walking mechanism and flexible leg cart walking mechanism respectively, installs in the both sides of described rigid leg and flexible leg the drag-line fixed on the ground respectively additional;
Described drag-line is tightened up;
Install unrestrained wind rope additional at the two ends of girder, one end of described unrestrained wind rope is fixed on the stern left and right sides of crane barge, and described unrestrained wind rope is connected with winch;
Use described crane barge to be sling by described girder, and described girder is connected with described rigid leg and flexible leg;
Wherein, use described crane barge to be sling by described girder, and described girder is connected with described rigid leg and flexible leg comprises:
Described girder is arranged on lifting joist, described lifting joist has hanger;
Described crane barge is used to be sling by described girder by the hanger on described joist;
After described girder winches to preset height, first and described rigid leg is connected, utilize the guide type shoe be arranged in advance on described rigid leg to position, put on bolt with flange, and then adjust described flexible leg and be connected with described girder, positioning flexible cuts with scissors, unload girder gradually afterwards, described girder and described flexible hinge are pressed close to, the weld seam between the good described flexible hinge of welding and girder, last all unloadings, remove described lifting joist.
2. the Entrance dock installation method of gantry crane of shipyard according to claim 1, is characterized in that, described drag-line is connected with winch.
3. the Entrance dock installation method of gantry crane of shipyard according to claim 2, is characterized in that, described drag-line is also connected with cable force measurement device.
4. the Entrance dock installation method of gantry crane of shipyard according to claim 1, is characterized in that, on the earth anchor that described drag-line fixes on the ground or checking bollard.
5. the Entrance dock installation method of gantry crane of shipyard according to claim 1, it is characterized in that, described drag-line comprises top drag-line and bottom drag-line, before described rigid leg and flexible leg are erect, described top drag-line is connected on described rigid leg and flexible leg, one end of described bottom drag-line fixes on the ground, after described rigid leg and flexible leg are erect, is connected by described top drag-line with bottom drag-line.
6. the Entrance dock installation method of gantry crane of shipyard according to claim 1, is characterized in that, uses shearing-resistance blocks to be fixed between described joist and girder.
7. the Entrance dock installation method of gantry crane of shipyard according to claim 1, is characterized in that, also comprises after being connected by described girder with described rigid leg and flexible leg:
Described crane barge is used to lift upper and lower dolly and maintenance crane respectively.
CN201210005671.8A 2012-01-10 2012-01-10 Entrance dock installation method for gantry crane of shipyard CN103193163B (en)

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CN104759774B (en) * 2015-04-16 2016-11-23 上海振华重工集团(南通)有限公司 A kind of tyre crane saddle beam shearing-resistance blocks welding method
CN104759773B (en) * 2015-04-16 2016-11-02 上海振华重工集团(南通)有限公司 A kind of tyre crane portal frame welding method
CN105215634B (en) * 2015-09-21 2017-07-07 南通振华重型装备制造有限公司 A kind of small-sized gantry hangs hoisting
CN105236263B (en) * 2015-10-28 2017-07-25 上海振华重工(集团)股份有限公司 The installation method of gantry flexible leg
CN105883614B (en) * 2016-05-19 2018-05-01 上海振华重工(集团)股份有限公司 The method that single device unbalance loading lifts gantry crane girder
CN106429870A (en) * 2016-10-21 2017-02-22 周东宁 Combined structure movable crane
CN108423565B (en) * 2018-04-18 2019-06-14 中铁十九局集团轨道交通工程有限公司 The erection and Demolition Construction method of U-shaped twin beams gantry crane with hook
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Publication number Priority date Publication date Assignee Title
JP2001226073A (en) * 2000-02-17 2001-08-21 Sumitomo Heavy Ind Ltd Method of installing portal crane
CN1463908A (en) * 2002-06-25 2003-12-31 上海港口机械制造厂 Method and apparatus for assembly of portal crane in shipbuilding
CN1833988A (en) * 2005-03-18 2006-09-20 同济大学 Installing method of portal crane
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