CN103086276A - Construction method for hoisting bridge type crane in high-rise well tower type building - Google Patents
Construction method for hoisting bridge type crane in high-rise well tower type building Download PDFInfo
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- CN103086276A CN103086276A CN2013100204536A CN201310020453A CN103086276A CN 103086276 A CN103086276 A CN 103086276A CN 2013100204536 A CN2013100204536 A CN 2013100204536A CN 201310020453 A CN201310020453 A CN 201310020453A CN 103086276 A CN103086276 A CN 103086276A
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Abstract
The invention provides a construction method for hoisting a bridge type crane in a high-rise well tower type building and belongs to the field of a mounting technology of the bridge type crane in the high-rise well tower type building. The method comprises the following steps of: rechecking well tower roof beam bearing force; setting hoisting points on a roof beam; determining a winding pulley system and a steel wire rope; arranging the winding pulley system; selecting hoisting points of a box beam and a main trolley; conveying and hoisting main and secondary box beams and an end beam of the bridge type crane into a mounting rail from a well tower gate; assembling a crane bridge rack and moving a bridge rack jigger away from a hoisting hole; and hoisting a trolley and hoisting other parts, so that just a plurality of several steps can be completed to achieve the aim of construction and installation. The construction method disclosed by the invention has the advantages of being more economical and more time-saving when being compared with the conventional method.
Description
Technical field
The invention belongs to crane in bridge type field engineering field in high-rise headframe type building, particularly a kind of construction method that lifts crane in bridge type in high-rise headframe type building.The lifting construction project that is particularly useful for large bridge crane in the high-rise headframe type of multilayer building.
Background technology
At present, in high-rise headframe type building, the lifting of crane in bridge type is general adopts large-scale crawler crane to lift.At first the method must be constructed under headframe roof girder and the inchoate condition of roofing, and after the hoisting crane installation, the shutterings-supported construction to follow-up roof girder and roofing has increased very large difficulty, also can cause larger impact to the integral construction progress of engineering simultaneously; Secondly the method needs crane in bridge type just to install before roofing construction, if the supply of material link of crane in bridge type lags behind, will have a strong impact on the construction speed of whole engineering; The construction of the method need to intert in the civil engineering structure work progress and completes again, between different majors, being connected between operation and operation, can affect the integral construction of engineering progress, will reduce the operating efficiency of civil engineering structure, increase the construction period of civil engineering structure, extend the construction period of whole engineering; Last the method uses large-scale crawler crane to lift, and the turnover field duration of crawler crane is longer, and expense is higher.
Summary of the invention
The object of the present invention is to provide a kind of construction method that lifts crane in bridge type in high-rise headframe type building.Solved the problem that the lifting of crane in bridge type need to adopt large-scale crawler crane to lift in high-rise headframe type building.For the smooth completion of integrated engineering provides the time assurance, greatly reduce construction cost.
For solving the problems of the technologies described above, the Specific construction step is as follows:
1, checking of headframe roof girder bearing capacity: the load capacity that obtains headframe roofing girder from civil engineering structure mechanics design drawing, the maximum weight of crane in bridge type list hook and the load capacity of headframe roofing girder are compared, determine the load capacity of headframe roofing girder greater than the maximum weight of the single hook of lifting, illustrate that this headframe roofing girder can be as the lifting point that builds.
2, the setting of lifting point on roof girder: with the roofing girder that crosses the hole for hoist center as hoisting beam, the lifting point is located at the center of hole for hoist as far as possible, determine on the roof boarding that water behind the position of lifting point is drilled in the girder both sides and respectively get two circular holes 1, utilize roofing lifting point wire line hitch 3 to pass circular hole 1 and the fixed pulley 10 of wheel more than is fixed on forms roofing lifting point 11 on roof girder.in order to make roofing lifting point 11 more safe and reliable, direction along roofing girder 5 on the girder of 11 positions, roofing lifting point arranges a H shaped steel floor stringer 2, roofing lifting point wire line hitch 3 is walked around H shaped steel floor stringer 2, with H shaped steel floor stringer 2, the concentrated load that rope transmits is disperseed, do four safe anchor ears 4 in H shaped steel floor stringer 2 edges and corners with semi-circular thick walled steel tube, protect with 4 pairs of safe anchor ears roofing lifting point wire line hitch 3, in order to avoid the corner angle of lifting H shaped steel floor stringer 2 during weight cut off roofing lifting point wire line hitch 3, make roofing lifting point 11 more safe and reliable.
3, determining of elevator pulley system and steel rope: determine to use winch 6 and pulley system according to the heaviest single-piece weight of crane in bridge type needs lifting.The elevator pulley system comprises changed course single-sheaved block 8, takes turns fixed pulley 10 more and take turns movable pulley 12 more, determines that principle is that the nominal payload of elevator pulley system is greater than single hook maximum weight of needs lifting; Determine the model of elevator pulley system steel rope 7 as benchmark take the slider quantity that single hook maximum weight and the elevator pulley system of crane in bridge type are returned, 8 times of safety factors by single elevator pulley system steel rope 7 breaking force calculate, and 8 times of breaking force of single elevator pulley system steel rope 7 are assigned to the maximum load capacity of single wire rope greater than the elevator pulley system.
4, the elevator pulley system is set: in dead ahead, headframe gate, a winch 6 is set, elevator pulley system steel rope 7 enters from the headframe gate, in headframe, the gate right opposite is fixed a changed course single-sheaved block 8 with changed course pulley wire sling 9, the rated load of changed course single-sheaved block should be greater than the maximum load capacity of elevator pulley system steel rope 7, the setting of changed course single-sheaved block 8 departs from the center position of hole for hoist 17, so that all mutually noninterferes of edge of the fast line of elevator pulley system and lifting object and each layer hole for hoist 17.The fast line of elevator pulley system passes many wheels fixed pulley 10 on roofing lifting point 11 and the many wheels movable pulley 12 on slip lifting point 13, many wheel fixed pulleys 10 and many wheel movable pulleys 12 all are fixed on many wheel fixed pulleys 10 by the dead end that standard is worn after full elevator pulley system steel rope 7 elevator pulley system steel rope 7 again, form the elevator pulley system.
5, the selection of case beam 16 and main carriage lifting point: case beam 16 needs the hole for hoist 17 through different floor heights in hoisting process, the cross section of hole for hoist 17 is greater than the end face of case beam 16, and due to the length of the case beam 16 individual layer height greater than headframe, case beam 16 is when each interlayer operation, all will be simultaneously through two holes for hoist 17, so case beam 16 also has one section at inferior top layer when being lifted into the upper limit position of top layer, in order to make case beam 16 can pass smoothly the hole for hoist 17 of each interlayer and can to pass smoothly when the top layer time high-rise, the necessary lean hoisting of case beam 16, and along with the continuous conversion angle of inclination of the difference of floor height.When lifting rises to top layer, the elevator pulley system has arrived end position, but case beam 16 also has one section hole for hoist 17 that does not leave top layer, need again this moment the lifting angle of adjusting tank beam 16 to make case beam 16 all hang out top layer hole for hoist 17, at last case beam 16 is lain in a horizontal plane on top layer platform, level is lifted on orbital plane.Case beam 16 constantly changes the lifting angle by suspension centre in hoisting process, suspension centre must be set to 2 liftings, some center that is arranged on case beam 16 is middle suspension centre 14, another point is top suspension centre 15 near being arranged on case beam 16 end faces, the angle of inclination when coming 16 lifting of control box beam by these two suspension centres; Due to the plane width of the square dolly width greater than hole for hoist 17, thus dolly at an angle of 90 vertical lifting after top, it is adjusted to horizontality, more horizontal hoisted in position.
6, bridging crane main odd-side beam and end carriage send into from the headframe gate and handling to attachment rail:
utilize wheel crane that crane parts is sent into the headframe gate, a pars intermedia chain block 18 and a top chain block 19(rated load are set more than or equal to lifting weight by fixing wire line hitch 20 on the slip lifting point 13 of elevator pulley system), hang over top chain block 19 on the top suspension centre 15 of case beam 16 by top suspension centre wire line hitch 21, hang in the headframe while the elevator pulley system steel rope 7 use wheel cranes that hoist and send case beam 16, hang over the pars intermedia chain block 18 on slip lifting point 13 on the middle suspension centre 14 of case beam 16 by middle suspension centre wire line hitch 22 after case beam 16 enters headframe fully, angle by pars intermedia chain block 18 and top chain block 19 adjusting tank beams 16, make case beam 16 rise to the top layer of headframe along hole for hoist 17.When case beam 16 rises to top layer, the elevator pulley system has arrived end position, but case beam 16 also has one section hole for hoist 17 that does not leave top layer, need the angle of inclination of adjusting tank beam 16 again this moment, make case beam 16 all hang out top layer hole for hoist 17, at last case beam 16 is lain in a horizontal plane on top layer platform.Sling the separately this moment middle suspension centre 14 of case beam 16 is lifted into case beam 16 on attachment rail.Use the same method an other case beam and two butt beams are lifted into the installation site.
7, assembling crane crane span structure, and the crane span structure jiggering is left hole for hoist 17:
Major-minor case beam and end carriage are assembled into one with it after being lifted into the installation site, form a crane bridge, adjust diagonal line and the crane span structure wheelspan of crane span structure by the code requirement measurement, confirm errorless rear mode with jiggering with the crane span structure dish from hole for hoist, so that the lifting of dolly and installation.
8, the lifting of dolly:
Utilize wheel crane that dolly is sent into the headframe gate, cart vertical is lifted into above the top layer platform by the elevator pulley system, four I-beam sections on uniform spreading on the hole for hoist of top layer platform, then the I-beam section on the hole for hoist as the strong point with 90 ° of dolly upsets, make its horizontal positioned.Again utilize the parallel lifting trolley of elevator assembly pulley to the orbital plane of crossing crane span structure, with crane span structure by jiggering slide into dolly under, slowly fall dolly after rise, the wheel of dolly is located on the orbital plane of crane span structure fully, complete the installation of dolly.
9, the lifting of other each parts:
The lifting of miscellaneous part such as electric component, operator's compartment, gib head etc., because its volume is little, lightweight, all routinely way directly is lifted into the installation site.
The invention has the advantages that: method is simple, does not re-use large-scale crawler crane, reduces construction cost; The decoration stage that is arranged on after civil engineering structure all completes of crane in bridge type is carried out, and working procedure has been simplified in the installation mutually noninterfere of structure construction and hoisting crane, has saved the engineering time of integrated engineering.
Description of drawings
Fig. 1 is that the roof girder lifting point arranges figure.Wherein, circular hole 1, H shaped steel floor stringer 2, roofing lifting point wire line hitch 3, safe anchor ear 4, roofing girder 5.
Fig. 2 arranges figure for ± 0.00 meter elevator pulley system.Wherein, winch 6, elevator pulley system steel rope 7, changed course single-sheaved block 8, changed course pulley wire sling 9.
Fig. 3 is that the elevator pulley system arranges elevation drawing.Wherein, winch 6, elevator pulley system steel rope 7, changed course single-sheaved block 8, changed course pulley wire sling 9 is taken turns fixed pulley 10 more, and movable pulley 12 is taken turns in roofing lifting point 11 more, slip lifting point 13.
Fig. 4 is that hole for hoist section and case beam suspension centre arrange figure.Wherein, middle suspension centre 14, top suspension centre 15, case beam 16, hole for hoist 17.
Fig. 5 is case beam lifting schematic diagram.Wherein, take turns movable pulley 12 more, middle suspension centre 14, top suspension centre 15, case beam 16, pars intermedia chain block 18, top chain block 19, fixedly wire line hitch 20, top suspension centre wire line hitch 21, middle suspension centre wire line hitch 22.
The specific embodiment
Embodiment 1
A 50t casting crane in bridge type in being the headframe of 73.5m, is installed track level measuring, headframe is divided into seven layers, crane in bridge type is arranged on the track of tower top layer 7,15 meters of ground floor clear height, the second layer to layer 6 clear height is 10 meters, and the layer 7 clear height is 13 meters, 65 meters of layer 7 floor absolute altitudes, 73.5 meters of orbital plane absolute altitudes, the roofing top mark is high is 78 meters.50t casting crane in bridge type deadweight 41.6t, electric panel room side girder single-piece is the heaviest be 13t, maximum volume for the wide x of long x high=14.1mx3.2mx1.5m, the middle hole for hoist that a 4.8mx3.5m is arranged in interior each layer of headframe ground, the long x of dolly is wide=4mx4m.
1, checking of headframe roof girder bearing capacity: needing the heaviest single-piece of lifting is transmission side case beam, and total weight is 13t.Check in the 75.5t that is capable of carrying a load of of headframe roofing girder by civil engineering structure mechanics design drawing, obviously the maximum load capacity 75.5t of roofing girder greater than the single-piece maximum weight 13t of needs lifting, illustrates that this headframe roof girder can be as the lifting point that builds.
2, the setting of lifting point on roof girder: with the roofing girder that crosses the hole for hoist center as hoisting beam, the lifting point is located at the center of hole for hoist as far as possible, determine on the roof boarding that water behind the position of lifting point is drilled in the girder both sides and respectively get two circular holes 1, utilize roofing lifting point wire line hitch 3 to pass circular hole 1 and the fixed pulley 10 of wheel more than is fixed on forms roofing lifting point 11 on roof girder.in order to make roofing lifting point 11 more safe and reliable, direction along roofing girder 5 on the girder of 11 positions, roofing lifting point arranges a H shaped steel floor stringer 2, roofing lifting point wire line hitch 3 is walked around H shaped steel floor stringer 2, with H shaped steel floor stringer 2, the concentrated load that rope transmits is disperseed, do four safe anchor ears 4 in H shaped steel floor stringer 2 edges and corners with semi-circular thick walled steel tube, protect with 4 pairs of safe anchor ears roofing lifting point wire line hitch 3, in order to avoid the corner angle of lifting H shaped steel floor stringer 2 during weight cut off roofing lifting point wire line hitch 3, make roofing lifting point 11 more safe and reliable.
3, determining of elevator pulley system and steel rope: be that 13t determines use 10t winch 6 and 20t double-wheel pulley system according to the heaviest single-piece weight of crane in bridge type needs lifting.The elevator pulley system comprises 10t changed course single-sheaved block 8, two-wheel fixed pulley 10 and two-wheel movable pulley 12, determines that principle is that the nominal payload 20t of elevator pulley system is greater than single hook maximum weight 13t of needs lifting; The double-wheel pulley that is returned take single hook maximum weight 13t and the elevator pulley system of crane in bridge type determines that the maximum load capacity of elevator pulley system steel rope 7 is as 6.5t as benchmark, maximum load capacity by elevator pulley system steel rope 7 is 8 times of safety factors calculating of 6.5t, the model of learning elevator pulley system steel rope 7 is (6 * 37,1700Mpa), diameter is φ 21.5mm.
4, the elevator pulley system is set: in dead ahead, headframe gate, a 10t winch 6 is set, elevator pulley system steel rope 7 enters from the headframe gate, in headframe, the gate right opposite is fixed a 10t changed course single-sheaved block 8 with changed course pulley wire sling 9, the rated load 10t of 10t changed course single-sheaved block 8 satisfies the construction needs greater than the maximum load capacity 6.5t of elevator pulley system steel rope 7.The boundary position that is arranged on ground floor hole for hoist 17 of 10 changed course single-sheaved blocks 8 is so that all mutually noninterferes of edge of the fast line of elevator pulley system and lifting object and each layer hole for hoist 17.The fast line of elevator pulley system passes two-wheel fixed pulley 10 on roofing lifting point 11 and the two-wheel movable pulley 12 on slip lifting point 13, two-wheel fixed pulley 10 and two-wheel movable pulley 12 all are fixed on two-wheel fixed pulley 10 by the dead end that standard is worn after full elevator pulley system steel rope 7 elevator pulley system steel rope 7 again, form the elevator pulley system.
5, the selection of case beam 16 and main carriage lifting point: case beam 16 needs the hole for hoist 17 through different floor heights in hoisting process, the sectional area of hole for hoist 17 is 4.8x3.5m
2, headframe is divided into 7 layers, 15 meters of ground floor clear height, and the second layer to layer 6 clear height is 10 meters, and the top layer clear height is 13 meters, and 73.5 meters of orbital plane absolute altitudes, roofing absolute altitude are 78 meters.Long 14.5 meters of the case beam 16 of crane in bridge type, high 1.5 meters with 3.2 meters of the beam overalls of platform and end carriage interface, heavy 13t; The dolly sectional area is 4x4m
2, heavy 10t.As can be seen from the above data in case beam 16 hoisting processes, the a certain period of the second layer and above each layer, the case beam needs simultaneously through two holes for hoist 17, when rising to layer 7, the elevator pulley system has arrived end position, but case beam 16 also has one section at layer 6, so can pass smoothly layer 6 in order to make case beam 16 can pass smoothly ground floor to the hole for hoist 17 of layer 6 and when the layer 7, case beam 16 must lean hoisting, and along with the continuous conversion angle of inclination of the difference of floor height.Its suspension centre must be set to 2 liftings, and any is arranged on the girder center, namely in the middle of suspension centre 14, another point is arranged on the position apart from girder end face 1m, namely the top suspension centre 15, the angle of inclination when coming 16 lifting of control box beam by these two suspension centres; Due to the section width 4m of the dolly width 3.5m greater than hole for hoist 17, dolly can not the level lifting, and its lifting point should in car body one side, make dolly vertical lifting at an angle of 90.
6, bridging crane main odd-side beam and end carriage send into from the headframe gate and handling to attachment rail;
utilize wheel crane that crane parts is sent into the headframe gate, by fixing wire line hitch 20, a 15t pars intermedia chain block 18 and a 15t top chain block 19 are set on the slip lifting point 13 of elevator pulley system, hang over top chain block 19 on the top suspension centre 15 of case beam 16 by top suspension centre wire line hitch 21, hang in the headframe while the elevator pulley system steel rope 7 use wheel cranes that hoist and send case beam 16, hang over the pars intermedia chain block 18 on slip lifting point 13 on the middle suspension centre 14 of case beam 16 by middle suspension centre wire line hitch 22 after case beam 16 enters headframe fully, angle by pars intermedia chain block 18 and top chain block 19 adjusting tank beams 16, make case beam 16 rise to the top layer of headframe along hole for hoist 17.When case beam 16 rises to layer 7, the elevator pulley system has arrived end position, but case beam 16 also has 1m not leave the hole for hoist 17 of layer 6, need the angle of inclination of adjusting tank beam 16 again this moment, make case beam 16 all hang out layer 7 hole for hoist 17, at last case beam 16 is lain in a horizontal plane on the layer 7 platform.Sling the separately this moment middle suspension centre 14 of case beam 16 is lifted into case beam 16 on attachment rail.Use the same method an other case beam and two butt beams are lifted into the installation site.
7, assembling crane crane span structure, and the crane span structure jiggering is left hole for hoist 17;
Major-minor case beam and end carriage are assembled into one with it after being lifted into the installation site, form a crane bridge, adjust diagonal line and the crane span structure wheelspan of crane span structure by the code requirement measurement, confirm errorless rear mode with jiggering with the crane span structure dish from hole for hoist, so that the lifting of dolly and installation.
8, the lifting of dolly;
Utilize wheel crane that dolly is sent into the headframe gate, cart vertical is lifted into above the top layer platform by the elevator pulley system, four I-beam sections on uniform spreading on the hole for hoist of top layer platform, then the I-beam section on the hole for hoist as the strong point with 90 ° of dolly upsets, make its horizontal positioned.Again utilize the parallel lifting trolley of elevator assembly pulley to the orbital plane of crossing crane span structure, with crane span structure by jiggering slide into dolly under, slowly fall dolly after rise, the wheel of dolly is located on the orbital plane of crane span structure fully, complete the installation of dolly.
9, the lifting of other each parts.
The lifting of miscellaneous part such as electric component, operator's compartment, gib head etc., because its volume is little, lightweight, all routinely way directly is lifted into the installation site.
Claims (3)
1. a construction method that lifts crane in bridge type in high-rise headframe type building, is characterized in that, the Specific construction step is as follows:
1) checking of headframe roof girder bearing capacity: the load capacity that obtains headframe roofing girder from civil engineering structure mechanics design drawing, the maximum weight of crane in bridge type list hook and the load capacity of headframe roofing girder are compared, determine the load capacity of headframe roofing girder greater than the maximum weight of the single hook of lifting, this headframe roofing girder can be as the lifting point that builds;
2) setting of lifting point on roof girder: with the roofing girder that crosses the hole for hoist center as hoisting beam, the lifting point is located at the center of hole for hoist, determine on the roof boarding that water behind the position of lifting point is drilled in the girder both sides and respectively get two circular holes (1), utilize roofing lifting point wire line hitch (3) to pass circular hole (1) and wheel fixed pulley (10) more than is fixed on forms roofing lifting point (11) on roof girder; Direction along roofing girder (5) on the girder of position, roofing lifting point (11) arranges a H shaped steel floor stringer (2), roofing lifting point wire line hitch (3) is walked around H shaped steel floor stringer (2), with H shaped steel floor stringer (2), the concentrated load that rope transmits is disperseed, do four safe anchor ears (4) in H shaped steel floor stringer (2) edges and corners with semi-circular thick walled steel tube, with safe anchor ear (4), roofing lifting point wire line hitch (3) is protected;
3) determining of elevator pulley system and steel rope: the elevator pulley system comprises changed course single-sheaved block (8), takes turns fixed pulley (10) and many wheel movable pulleys (12) more, determines that principle is that the nominal payload of elevator pulley system is greater than single hook maximum weight of needs lifting; Determine the model of elevator pulley system steel rope (7) as benchmark take the slider quantity that single hook maximum weight and the elevator pulley system of crane in bridge type are returned, 8 times of safety factors by single elevator pulley system steel rope (7) breaking force calculate, and 8 times of breaking force of single elevator pulley system steel rope (7) are assigned to the maximum load capacity of single elevator pulley system steel rope (7) greater than the elevator pulley system;
4) the elevator pulley system is set: in dead ahead, headframe gate, a winch (6) is set, elevator pulley system steel rope (7) enters from the headframe gate, in headframe, the gate right opposite is fixed a changed course single-sheaved block (8) with changed course pulley wire sling (9), the setting of changed course single-sheaved block (8) departs from the center position of hole for hoist (17), the fast line of elevator pulley system passes many wheels fixed pulley (10) on roofing lifting point (11) and the many wheels movable pulley (12) on slip lifting point (13), the dead end that many wheel fixed pulleys (10) and many wheel movable pulleys (12) are worn after full elevator pulley system steel rope (7) elevator pulley system steel rope (7) by standard again is fixed on take turns on fixed pulleys (10) more, form the elevator pulley system,
5) case beam (16) reaches the selection of main carriage lifting point: case beam (16) needs the hole for hoist (17) through different floor heights in hoisting process, the cross section of hole for hoist (17) is greater than the end face of case beam (16), due to the length of case beam (16) the individual layer height greater than headframe, case beam (16) is when each interlayer operation, will be simultaneously through two holes for hoist (17), so case beam (16) is lean hoisting, and along with the different conversion angle of inclination of floor height; When lifting rises to top layer, case beam (16) also has one section hole for hoist (17) that does not leave top layer, want the lifting angle of adjusting tank beam (16) this moment, case beam (16) is all hung out top layer hole for hoist (17), at last case beam (16) is lain in a horizontal plane on top layer platform, level is lifted on orbital plane, and case beam (16) constantly changes the lifting angle by suspension centre in hoisting process; The plane width of square dolly is greater than the width of hole for hoist (17), and dolly vertical lifting is at an angle of 90 adjusted to horizontality after top, more horizontal hoisted in position;
6) bridging crane main odd-side beam and end carriage send into from the headframe gate and handling to attachment rail:
utilize wheel crane that crane parts is sent into the headframe gate, the slip lifting point (13) of elevator pulley system is upper arranges a pars intermedia chain block (18) and a top chain block (19) by fixing wire line hitch (20), hang over top chain block (19) on the top suspension centre (15) of case beam (16) by top suspension centre wire line hitch (21), use wheel crane to hang in the headframe while the elevator pulley system steel rope (7) that hoists and send case beam (16), hang over the pars intermedia chain block (18) on slip lifting point (13) on the middle suspension centre (14) of case beam (16) by middle suspension centre wire line hitch (22) after case beam (16) enters headframe fully, angle by pars intermedia chain block (18) and top chain block (19) adjusting tank beam (16), make case beam (16) rise to the top layer of headframe along hole for hoist (17), again case beam (16) is lain in a horizontal plane on platform, sling the separately middle suspension centre (14) of case beam (16) is lifted into case beam (16) on attachment rail, use the same method an other case beam and two butt beams are lifted into the installation site,
7) assembling crane crane span structure, and the crane span structure jiggering is left hole for hoist (17):
Major-minor case beam and end carriage are assembled into one with it after being lifted into the installation site, form a crane bridge, press diagonal line and crane span structure wheelspan that code requirement measure to be adjusted crane span structure, the mode of confirming errorless rear use jiggering with the crane span structure dish from hole for hoist;
8) lifting of dolly:
Utilize wheel crane that dolly is sent into the headframe gate, cart vertical is lifted into above the top layer platform by the elevator pulley system, four I-beam sections on the upper uniform spreading of the hole for hoist (17) of top layer platform, I-beam section on the hole for hoist (17) with 90 ° of dolly upsets, makes its horizontal positioned as the strong point again; Utilize the parallel lifting trolley of elevator assembly pulley to the orbital plane of crossing crane span structure, crane span structure by jiggering slide into dolly under, fall dolly after rise, the wheel of dolly is located on the orbital plane of crane span structure fully, complete the installation of dolly;
9) lifting of other each parts:
Electric component, operator's compartment and gib head, all routinely way directly is lifted into the installation site.
2. method according to claim 1, it is characterized in that, suspension centre described in step 5) be set to 2 liftings, some center that is arranged on case beam (16) is middle suspension centre (14), another point is top suspension centre (15) near being arranged on case beam-ends face.
3. method according to claim 1, is characterized in that, the rated load of the top chain block (19) described in step 6) is more than or equal to lifting weight.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106006425A (en) * | 2016-07-01 | 2016-10-12 | 广东省工业设备安装有限公司 | Method of hoisting and transporting large-sized equipment arranged in underground machine rooms of super high-rise buildings |
| CN109626224A (en) * | 2018-11-29 | 2019-04-16 | 上海市基础工程集团有限公司 | Bridge crane peace dismounting construction method in the confined space |
| CN112249915A (en) * | 2020-09-27 | 2021-01-22 | 上海宝冶集团有限公司 | Large bridge crane hoisting method for closed occasions of factory buildings |
| CN113307155A (en) * | 2021-06-01 | 2021-08-27 | 中铁四局集团有限公司 | Pile support system assembly type subway station longitudinal beam lifting appliance and longitudinal beam installation method |
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| CN106006425A (en) * | 2016-07-01 | 2016-10-12 | 广东省工业设备安装有限公司 | Method of hoisting and transporting large-sized equipment arranged in underground machine rooms of super high-rise buildings |
| CN109626224A (en) * | 2018-11-29 | 2019-04-16 | 上海市基础工程集团有限公司 | Bridge crane peace dismounting construction method in the confined space |
| CN112249915A (en) * | 2020-09-27 | 2021-01-22 | 上海宝冶集团有限公司 | Large bridge crane hoisting method for closed occasions of factory buildings |
| CN113307155A (en) * | 2021-06-01 | 2021-08-27 | 中铁四局集团有限公司 | Pile support system assembly type subway station longitudinal beam lifting appliance and longitudinal beam installation method |
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