CN113152296A - A lift formula operation platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower - Google Patents
A lift formula operation platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower Download PDFInfo
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- CN113152296A CN113152296A CN202110420624.9A CN202110420624A CN113152296A CN 113152296 A CN113152296 A CN 113152296A CN 202110420624 A CN202110420624 A CN 202110420624A CN 113152296 A CN113152296 A CN 113152296A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 351
- 239000010959 steel Substances 0.000 title claims abstract description 351
- 206010066054 Dysmorphism Diseases 0.000 title claims abstract description 8
- 238000009434 installation Methods 0.000 title claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 124
- 230000001737 promoting effect Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 31
- 238000003466 welding Methods 0.000 claims description 17
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 14
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
The utility model relates to a hang promotion formula work platform that is used for quick installation of cable-stay bridge dysmorphism steel tower uses in the field of steel tower construction, and it includes along week side encircleing the construction steelframe platform that sets up on the steel tower segment section, construction steelframe platform passes through running gear along steel tower segment section axial displacement, the hoist mechanism that is used for promoting construction steelframe platform is installed at the top of steel tower segment section, and every the top of steel tower segment section all is provided with the interim fixed establishment who is used for fixed construction steelframe platform. This application has that it is little, the structure is nimble light, fine control construction cost to hang promotion formula operation platform steel quantity, but and recycle, need not to build the effect of demolising repeatedly.
Description
Technical Field
The application relates to the field of steel tower construction, in particular to a hanging lifting type operation platform for quickly mounting a cable-stayed bridge special-shaped steel tower.
Background
The steel tower is called a steel cable tower and is applied to the construction of cable-stayed bridges. The steel tower is usually multi-section and is prefabricated in a factory, then the steel tower is transported to a construction site and then is constructed and spliced on site, in the process of splicing the steel tower sections in site construction, the steel tower sections need to be sequentially suspended by a tower crane, and then a constructor welds two adjacent steel tower sections to ensure the overall stability of the steel tower; in the process of welding the steel tower segment, the construction platform is used as a foot point of a constructor, so that the constructor can safely and efficiently perform welding operation.
The existing construction platform usually adopts a floor type steel support platform which is built on site by steel beams and arranged around the circumference of a steel tower, and the floor type steel support platform is gradually heightened and built on site along with the continuous addition of steel tower sections so as to gradually match the welding requirement of the previous section of steel tower.
Aiming at the related technologies, the inventor thinks that the floor type steel support platform has the defects of large steel consumption, heavy structure, inconvenience for cost control, long construction and dismantling time and complex operation.
Disclosure of Invention
In order to improve that console mode steel support platform steel quantity is big, the structure is heavy, be unfavorable for cost control, and build and demolish long, the complex operation's of time problem, this application provides a lift formula operation platform of hanging that is used for cable-stay bridge dysmorphism steel tower to install fast.
The application provides a pair of a lift formula work platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower adopts following technical scheme:
the utility model provides a hang promotion formula work platform that is used for quick installation of cable-stay bridge dysmorphism steel tower, includes along week side encircleing the construction steelframe platform that sets up on the steel tower festival section, construction steelframe platform passes through running gear along steel tower festival section axial displacement, the hoist mechanism that is used for promoting construction steelframe platform is installed at the top of steel tower festival section, and every the top of steel tower festival section all is provided with the interim fixed establishment who is used for fixed construction steelframe platform.
By adopting the technical scheme, before construction, the lifting mechanism is arranged at the top of the steel tower segment, and when construction is carried out, constructors stand on a construction steel frame platform, the construction steel frame platform is lifted upwards by the lifting mechanism, constructors are lifted upwards along with the construction steel frame platform, when the construction steel frame platform is lifted to the operation position at the top of the steel tower segment, the construction steel frame platform is fixed on the steel tower segment through the temporary fixing mechanism, then the lifting mechanism is disassembled from the top of the steel tower segment, at the moment, the ground personnel lift another steel tower segment by the tower crane, and is spliced on the lower steel tower segment, constructors can stand on the construction steel frame platform to weld the two steel tower segments, after the welding operation is finished, the lifting mechanism is arranged on the top of the upper steel tower segment, then, the temporary fixing mechanism is disassembled, and the construction steel frame platform is lifted to the top operation position of the upper steel tower section through the lifting mechanism;
and then repeating the operation, after all the steel tower sections are sequentially spliced, disassembling the lifting mechanism from the top of the uppermost steel tower section, and then lifting the construction steel frame platform from the steel tower sections by using a tower crane, thereby completing construction operation. The steel consumption of the hanging lifting type operation platform is small, the structure is flexible and light, the construction cost is well controlled, the hanging lifting type operation platform can be recycled, and the hanging lifting type operation platform does not need to be built repeatedly for dismantling.
Optionally, the construction steel frame platform comprises a platform truss arranged on the steel tower segment in a surrounding mode along the circumferential side, the platform truss and the outer wall of the steel tower segment are arranged at intervals, a steel pedal is paved on the platform truss, and a steel guardrail is arranged on the circumferential side of the platform truss.
By adopting the technical scheme, the platform truss and the outer wall of the steel tower segment are arranged at intervals for mounting the travelling mechanism, the steel pedal paved on the platform truss is used for a constructor to stand, and the steel guardrail arranged on the outer peripheral side of the platform truss is used for ensuring the safety of the constructor in the construction process; the integral structure of the construction steel frame platform is light and stable, and the weight of constructors and construction tools can be stably supported while the construction steel frame platform can be stably lifted.
Optionally, the outside of construction steelframe platform is connected with the outrigger steelframe platform outward, the outrigger steelframe platform includes the truss of encorbelmenting outward of being connected with the platform truss, the platform truss with be connected with the bracing beam between the bottom of encorbelmenting the truss outward, the truss upper berth of encorbelmenting outward is equipped with the footboard of encorbelmenting outward, the periphery side of encorbelmenting the truss outward is provided with the guardrail of encorbelmenting outward.
Through adopting above-mentioned technical scheme, the bracing beam is connected between platform truss and the truss of encorbelmenting outward from the bottom, plays the effect that supports the firm steelframe platform of encorbelmenting outward, and the steel tower segment is the main tower, and in the work progress usually, still subsidiary tower can be had by the way on the main tower edge, encorbelments steelframe platform outward through setting up and is in order to adapt to the synchronous operation of the subsidiary tower on the main tower edge.
Optionally, running gear is including installing a plurality of walking wheels in platform truss internal periphery side, just the walking wheel all is equipped with, a plurality of in platform truss internal periphery side's upper end and lower extreme walking wheel along platform truss internal periphery side evenly distributed, the walking wheel with the outer wall looks butt of steel tower segment section.
By adopting the technical scheme, the upper end and the lower end of the inner peripheral side of the platform truss are uniformly provided with the plurality of walking wheels, and the walking wheels are tightly attached to the outer wall of the steel tower segment, so that the lifting stability of the construction steel frame platform can be improved, and the possibility of deflection in the lifting process of the construction steel frame platform is reduced.
Optionally, be provided with the steel guard shield of cover in the walking wheel outside on the platform truss, the steel guard shield is established to the arc structure with the outer wall looks adaptation of steel tower segment towards one side of steel tower segment, just the steel guard shield sets up towards one side of steel tower segment and the outer wall interval of steel tower segment.
Through adopting above-mentioned technical scheme, the steel guard shield that sets up with the outer wall interval of steel tower segment section, under the prerequisite that does not influence the walking and take turns the walking, can be used to block the foreign matter for the walking wheel, guarantees to walk the wheel and stabilize the walking on the outer wall of steel tower segment section.
Optionally, a limiting guide wheel is installed on one side, facing the steel tower segment, of the steel shield, the limiting guide wheel is located on one side of the traveling wheel, and a limiting guide rail for the limiting guide wheel to travel is axially arranged on the outer wall of the steel tower segment along the steel tower segment.
Through adopting above-mentioned technical scheme, through spacing guide pulley and spacing guide rail's cooperation, play the spacing effect of walking wheel for the walking wheel can keep the steady state upwards walking along the axial of steel tower segment section, thereby has prevented effectively that construction steel frame platform from promoting the in-process and has taken place to rotate, improves the stationarity that construction steel frame platform promoted.
Optionally, the lifting mechanism includes a lifting frame installed at the top of the steel tower segment, the outer peripheral side of the lifting frame extends out of the outer peripheral wall of the steel tower segment, the part of the lifting frame extending out of the outer peripheral wall of the steel tower segment is vertically arranged in a through manner, three hoists are evenly installed at the top of the lifting frame along the peripheral side, each hoist is connected with a steel wire rope, the part of the steel wire rope extending out of the outer peripheral wall of the steel tower segment from the lifting frame penetrates downwards, one end of the steel wire rope extending out of the hoists is connected with a lower lifting appliance, and a fixed lifting appliance matched with the lower lifting appliance is arranged on the construction steel frame platform.
By adopting the technical scheme, after the three winches respectively release the steel wire ropes, the lower lifting appliances at the lower ends of the steel wire ropes are correspondingly hooked on the fixed lifting appliances on the construction steel frame platform, so that the whole construction steel frame platform is suspended by the three steel wire ropes; and by arranging three winches and three corresponding steel wire ropes, the stability of the construction steel frame platform in the lifting process can be effectively improved.
Optionally, a steering pulley is installed at a position of the lifting frame extending out of the outer peripheral wall of the steel tower segment through a steering bracket, the steel wire rope is wound around the steering pulley, a limiting steel ring is arranged between the winch and the steering pulley on the lifting frame, and the steel wire rope penetrates through the limiting steel ring.
By adopting the technical scheme, the steering pulley is used for steering the steel wire rope and guiding the steel wire rope to better penetrate through the part of the lifting frame extending out of the outer peripheral wall of the steel tower section; and the steel wire rope penetrates through the limiting steel ring, so that the steel wire rope can be limited, and the swinging of the steel wire rope released from the winch is reduced, thereby improving the stability of the construction steel frame platform in the lifting process.
Optionally, the temporary fixing mechanism comprises a plurality of hoisting lugs evenly arranged on the outer peripheral wall of the top of the steel tower segment, the construction steel frame platform is provided with fixing lugs corresponding to the hoisting lugs one to one, and the hoisting lugs are connected with the fixing lugs through anchor chains.
Through adopting above-mentioned technical scheme, when hoist mechanism promoted the construction steel frame platform to steel tower segment top operation position, constructor can correspond the anchor chain and connect between hoist and mount lug and fixed lug to can fix the construction steel frame platform temporarily on the steel tower segment, constructor can lift off three wire rope from the construction steel frame platform this moment, lift off whole hoist mechanism from steel tower segment top, constructor can stand and carry out construction operation on the construction steel frame platform steadily.
Optionally, a plurality of safety welding plates are evenly distributed on the inner peripheral side of the construction steel frame platform, and the safety welding plates are welded with the outer wall of the steel tower segment.
Through adopting above-mentioned technical scheme, after fixing the construction steel frame platform on the steel tower segment section temporarily through the anchor chain, constructor can weld the outer wall of board and steel tower segment section with the insurance, plays the effect of further firm construction steel frame platform, treats that the construction steel frame platform need lift up once more, and constructor unloads the anchor chain, with the insurance weld the board with the welding point excision of steel tower segment section outer wall can.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the hanging and lifting type operation platform is small in steel consumption, flexible and light in structure, well controlled in construction cost, recyclable and free of repeated building and dismantling;
2. the steel shield is arranged at intervals with the outer wall of the steel tower segment, so that the foreign bodies can be blocked for the travelling wheel on the premise of not influencing the travelling of the travelling wheel, and the travelling wheel is ensured to stably travel on the outer wall of the steel tower segment;
3. the limiting guide wheel is matched with the limiting guide rail to limit the travelling wheel, so that the travelling wheel can keep a stable state to travel upwards along the axial direction of the steel tower segment, the rotation of the construction steel frame platform in the lifting process is effectively prevented, and the lifting stability of the construction steel frame platform is improved;
4. the limiting steel ring is arranged between the winch and the steering pulley, the steel wire rope penetrates through the limiting steel ring, the steel wire rope can be limited, the swinging condition of the steel wire rope after the steel wire rope is released from the winch is reduced, and therefore the stability of the construction steel frame platform in the lifting process is improved.
Drawings
Fig. 1 is a schematic view of a suspended lifting type work platform for quick installation of a cable-stayed bridge special-shaped steel tower in the embodiment of the application.
Fig. 2 is a schematic diagram of a construction steel frame platform and an overhanging steel frame platform in the embodiment of the present application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
FIG. 4 is a schematic view of the construction steel frame platform fixed on the steel tower segment through the temporary fixing mechanism in the embodiment of the application.
Reference numerals: 1. a steel tower segment; 2. constructing a steel frame platform; 21. a platform truss; 22. a steel pedal; 23. a steel guardrail; 3. carrying out steel frame platform outward; 31. cantilever trusses; 32. a pedal is chosen; 33. carrying out guardrail picking; 4. a diagonal bracing beam; 5. a traveling mechanism; 51. a traveling wheel; 6. a steel shield; 7. a limiting guide wheel; 8. limiting a guide rail; 9. a lifting mechanism; 91. a hoisting frame; 92. a winch; 93. a wire rope; 94. a lower lifting appliance; 95. fixing a lifting appliance; 96. a steering bracket; 97. a diverting pulley; 98. a limiting steel ring; 10. a temporary fixing mechanism; 101. hoisting the lifting lug; 102. fixing the lifting lug; 103. an anchor chain; 11. and a safety welding plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a hang promotion formula work platform that is used for quick installation of cable-stay bridge dysmorphism steel tower. Referring to fig. 1, the hanging lifting type operation platform for quickly mounting the cable-stayed bridge special-shaped steel tower comprises a construction steel frame platform 2 which is arranged on a steel tower section 1 along the circumferential side in a surrounding way, the steel tower section 1 is generally a special-shaped structural steel tower, the steel tower segment 1 can be cylindrical, square, polygonal or other special-shaped structures, in the embodiment of the application, the steel tower segment 1 is defined as a cylindrical structure, the outer side of the construction steel frame platform 2 is connected with an outer cantilever steel frame platform 3, the construction steel frame platform 2 and the outer cantilever steel frame platform 3 are used as foothold points of constructors and construction tools, the construction steel frame platform 2 moves along the axial direction of the steel tower segment 1 through a walking mechanism 5, the top of the steel tower segment 1 is provided with a lifting mechanism 9 for lifting the construction steel frame platform 2 upwards, and a temporary fixing mechanism 10 for fixing the construction steel frame platform 2 is arranged at the top of each steel tower segment 1.
Referring to fig. 1, before construction, a constructor firstly installs a lifting mechanism 9 on the top of a steel tower segment 1, during construction, the constructor carries a construction tool to stand on a construction steel frame platform 2, the construction steel frame platform 2 is lifted upwards through the lifting mechanism 9, the constructor lifts upwards along with the construction steel frame platform 2, when the construction steel frame platform 2 is lifted to the operation position on the top of the steel tower segment 1, the construction steel frame platform 2 is fixed on the steel tower segment 1 through a temporary fixing mechanism 10, then the lifting mechanism 9 is detached from the top of the steel tower segment 1, at the moment, a ground constructor lifts another steel tower segment 1 by a tower crane and splices the other steel tower segment 1 on the lower steel tower segment 1, the constructor can stand on the construction steel frame platform 2 to perform welding operation on the two steel tower segments 1, after the welding operation is finished, the lifting mechanism 9 is installed on the top of the upper steel tower segment 1, and then the temporary fixing mechanism 10 is disassembled, and the construction steel frame platform 2 is lifted to the top operation position of the upper steel tower section 1 through the lifting mechanism 9.
And then repeating the operation until all the steel tower sections 1 are spliced in sequence, disassembling the lifting mechanism 9 from the top of the uppermost steel tower section 1, and then lifting the construction steel frame platform 2 from the steel tower sections 1 by using a tower crane, thereby completing the whole construction operation. The steel consumption of the hanging lifting type operation platform is small, the structure is flexible and light, the construction cost is well controlled, the hanging lifting type operation platform can be recycled, and the hanging lifting type operation platform does not need to be built repeatedly for dismantling.
Referring to fig. 1, construction steel frame platform 2 includes platform truss 21, and platform truss 21 encircles along week side and sets up on steel tower segment 1, and platform truss 21 is formed by various steel concatenation welding, and platform truss 21 has ensured whole construction steel frame platform 2's steadiness as the bottom sprag structure of whole construction steel frame platform 2. Even clearance has between the outer wall of platform truss 21 and steel tower festival section 1 to be used for installing running gear 5, lay the steel footboard 22 that supplies the constructor to stand and supply the construction tool to put on platform truss 21, steel footboard 22 adopts the checkered plate, steel footboard 22 and platform truss 21 welded fastening, and at the periphery side welding steel guardrail 23 of platform truss 21, the height of steel guardrail 23 is 1.2m, safety in order to ensure constructor work progress.
Referring to fig. 1, cantilever steelframe platform 3 is including cantilever truss 31, and cantilever truss 31 is also formed by various steel concatenation welding, and cantilever truss 31 extends and communicates with platform truss 21 from the outside of platform truss 21, and cantilever truss 31 and platform truss 21 welded fastening outward, weld bracing beam 4 between cantilever truss 31 and platform truss 21 bottom outward, play the effect of supporting firm whole cantilever steelframe platform 3 through bracing beam 4. The cantilever truss 31 is paved with an outward cantilever pedal 32, the outward cantilever pedal 32 is also provided with a checkered plate, the outward cantilever pedal 32 and the outward cantilever truss 31 are welded and fixed, an outward cantilever guardrail 33 is welded on the outer peripheral side of the outward cantilever truss 31, the height of the outward cantilever guardrail 33 is also 1.2m, the outward cantilever guardrail 33 and the steel guardrail 23 jointly surround the outer peripheral side of the outward cantilever steel frame platform 3 and the construction steel frame platform 2, and the safety of constructors in the construction process is guaranteed. Steel tower segment 1 is the main tower, and in the work progress usually, still there is the auxiliary tower on the main tower edge, chooses steelframe platform 3 outward through setting up in order to adapt to the synchronous operation of auxiliary tower on the main tower edge.
Referring to fig. 2 and 3, the traveling mechanism 5 includes a plurality of walking wheels 51 arranged in the gap between the platform truss 21 and the outer wall of the steel tower segment 1, the walking wheels 51 are polyurethane wheels, the walking wheels 51 are fixedly installed on the platform truss 21, and the walking wheels 51 are closely attached to the outer wall of the steel tower segment 1, for the walking wheels 51, half of the walking wheels are installed at the upper end of the platform truss 21 and are uniformly distributed along the inner peripheral side of the platform truss 21, and the other half of the walking wheels are installed at the lower end of the platform truss 21 and are also uniformly distributed along the inner peripheral side of the platform truss 21. In the process of lifting the construction steel frame platform 2 upwards by the lifting mechanism 9, the travelling wheels 51 can ensure that the construction steel frame platform 2 is stably lifted on the steel tower segment 1, and the possibility of deflection in the lifting process of the construction steel frame platform 2 is reduced.
Referring to fig. 3 and 4, all weld steel guard shield 6 in each walking wheel 51 department on platform truss 21, steel guard shield 6 cover is established in walking wheel 51's the outside, establish steel guard shield 6 towards one side of steel tower segment section 1 into the arc structure with the outer wall looks adaptation of steel tower segment section 1, and steel guard shield 6 towards one side of steel tower segment section 1 and steel tower segment section 1's outer wall keep the interval, from not influencing walking wheel 51 and normally walking, steel guard shield 6 can keep off the foreign matter for walking wheel 51, guarantee walking wheel 51 and stabilize the walking on steel tower segment section 1's outer wall. In addition, install spacing guide pulley 7 towards one side of steel tower festival section 1 at steel shroud 6, spacing guide pulley 7 is located walking wheel 51 towards one side of steel tower festival section 1 circumference, install the spacing guide rail 8 that supplies the walking of spacing guide pulley 7 along self axial on the outer wall of steel tower festival section 1, spacing guide pulley 7 walks on spacing guide rail 8, can play the spacing effect to walking wheel 51, make walking wheel 51 can keep the steady state upwards walking along the axial of steel tower festival section 1, thereby effectively prevented that construction steel frame platform 2 from promoting the in-process and taken place to rotate, the stationarity that improves construction steel frame platform 2 and promote.
Referring to fig. 1, the lifting mechanism 9 includes a lifting frame 91 disposed at the top of the steel tower segment 1, the lifting frame 91 is fixed to the steel tower segment 1 by bolts, the outer circumferential side of the lifting frame 91 extends out of the outer circumferential wall of the steel tower segment 1, and the part of the lifting frame 91 extending out of the outer peripheral wall of the steel tower segment 1 is vertically arranged in a through way, three winches 92 are uniformly arranged on the top of the lifting frame 91 along the peripheral side, and the part of the lifting frame 91 extending out of the outer peripheral wall of the steel tower segment 1 is provided with a diverting pulley 97 corresponding to each winch 92 through a diverting bracket 96, three winches 92 are respectively wound with a steel wire rope 93, the steel wire rope 93 extends out of the winches 92, then bypasses the diverting pulley 97 and passes downwards through the part of the lifting frame 91 extending out of the outer peripheral wall of the steel tower segment 1, a lower lifting appliance 94 is fixedly connected to one end of the steel wire rope 93 far away from the winch 92, and a fixed lifting appliance 95 matched with the lower lifting appliance 94 is fixedly connected to the platform truss 21. After the three winches 92 release the steel wire ropes 93 respectively, the lower lifting appliances 94 at the lower ends of the steel wire ropes 93 are hooked on the fixed lifting appliances 95 on the platform truss 21 correspondingly, so that the whole construction steel frame platform 2 is suspended by the three steel wire ropes 93, and after the three winches 92 are started simultaneously, the whole construction steel frame platform 2 can be lifted upwards by winding the three steel wire ropes 93.
Referring to fig. 1, a limiting steel ring 98 is fixedly connected between the winch 92 and the diverting pulley 97 at the top of the lifting frame 91, the steel wire rope 93 extends out of the winch 92, the steel wire rope 93 passes through the limiting steel ring 98 and then bypasses the diverting pulley 97, the steel wire rope 93 can be limited, the situation that the steel wire rope 93 swings after being released from the winch 92 is reduced, and therefore the stability of the construction steel frame platform 2 in the lifting process is improved.
Referring to fig. 1 and 2, the temporary fixing mechanism 10 includes four hoisting lugs 101 uniformly welded on the outer peripheral wall of the top of the steel tower segment 1, the size of the hoisting lug 101 is smaller than the distance between the platform truss 21 and the outer wall of the steel tower segment 1, so that the hoisting lug 101 does not affect the upward lifting of the construction steel frame platform 2, the four hoisting lugs 101 are welded on the platform truss 21 along the peripheral side and correspond to the four hoisting lugs 101 in a one-to-one manner, when the construction steel frame platform 2 is lifted to the top operation position of the steel tower segment 1, anchor chains 103 are connected between the four hoisting lugs 101 and the corresponding fixed lugs 102, so that the whole construction steel frame platform 2 can be temporarily fixed on the steel tower segment 1 through the four anchor chains 103, at this time, a constructor can stand on the construction steel frame platform 2 to stably perform construction operation.
Referring to fig. 4, a plurality of safety weld plates 11 are arranged on the inner peripheral side of the platform truss 21, in the embodiment of the present application, the number of the safety weld plates 11 is four, the four safety weld plates 11 are uniformly distributed along the inner peripheral side of the platform truss 21, the four safety weld plates 11 are welded on the platform truss 21 in advance, after the construction steel frame platform 2 is temporarily fixed on the steel tower segment 1 through the four anchor chains 103, a constructor can weld the safety weld plates 11 with the outer wall of the steel tower segment 1 to further stabilize the construction steel frame platform 2, when the construction steel frame platform 2 needs to be lifted upwards again, the constructor unloads the anchor chains 103, and the welding points between the safety weld plates 11 and the outer wall of the steel tower segment 1 are cut off.
The implementation principle of the hanging lifting type operation platform for quickly installing the cable-stayed bridge special-shaped steel tower is as follows: before the construction, the constructor installs hoist mechanism 9 at the top of steel tower festival section 1 earlier, during the construction, three hoist engine 92 release wire rope 93, the constructor corresponds the lower hoist 94 of three wire rope 93 lower extremes and hooks the fixed hoist 95 on the platform truss 21, thereby live in hanging whole construction steel frame platform 2 through three wire rope 93, at this moment the constructor carries the construction tool and stands on construction steel frame platform 2, after three hoist engine 92 started simultaneously, three wire rope 93 of rolling alright upwards promote whole construction steel frame platform 2.
When the construction steel frame platform 2 is lifted to the operation position on the top of the steel tower segment 1, the constructor connects anchor chains 103 between the four lifting lugs 101 and the corresponding fixing lugs 102, so that the whole construction steel frame platform 2 can be temporarily fixed on the steel tower segment 1 through the four anchor chains 103, then the lifting mechanism 9 is detached from the top of the steel tower segment 1, at this time, ground personnel lift another steel tower segment 1 by means of a tower crane and splice the steel tower segment 1 on the lower part, the constructor can stand on the construction steel frame platform 2 to weld the two steel tower segments 1, after the welding operation is finished, the lifting mechanism 9 is installed on the top of the upper steel tower segment 1, then the lower lifting appliances 94 at the lower ends of the three steel wire ropes 93 are correspondingly hooked on the fixing lifting appliances 95 on the platform truss 21, and the whole construction steel frame platform 2 is suspended through the three steel wire ropes 93, at this time, the four anchor chains 103 are detached, and the three winches 92 simultaneously wind the three steel wire ropes 93, so that the whole construction steel frame platform 2 can be lifted to the top operation position of the upper steel tower segment 1.
And then repeating the operation until all the steel tower sections 1 are spliced in sequence, disassembling the lifting mechanism 9 from the top of the uppermost steel tower section 1, and then lifting the construction steel frame platform 2 from the steel tower sections 1 by using a tower crane, thereby completing the whole construction operation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a hang promotion formula work platform that is used for quick installation of cable-stay bridge dysmorphism steel tower which characterized in that: including surrounding construction steelframe platform (2) that sets up on steel tower segment (1) along week side, construction steelframe platform (2) are through running gear (5) along steel tower segment (1) axial displacement, hoist mechanism (9) that are used for promoting construction steelframe platform (2) are installed at the top of steel tower segment (1), and every the top of steel tower segment (1) all is provided with interim fixed establishment (10) that are used for fixed construction steelframe platform (2).
2. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 1, which is characterized in that: construction steelframe platform (2) are including surrounding platform truss (21) of setting on steel tower section (1) along week side, platform truss (21) with the outer wall interval of steel tower section (1) sets up, platform truss (21) upper berth is equipped with steel footboard (22), the periphery side of platform truss (21) is provided with steel guardrail (23).
3. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 2, which is characterized in that: the outside of construction steel frame platform (2) is connected with and chooses steel frame platform (3) outward, choose steel frame platform (3) outward including choosing truss (31) outward with platform truss (21) are connected, platform truss (21) with it is connected with bracing beam (4) outward between the bottom of choosing truss (31), it is equipped with and chooses footboard (32) outward to choose truss (31) upper berth outward, the periphery side of choosing truss (31) outward is provided with and chooses guardrail (33) outward.
4. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 2, which is characterized in that: running gear (5) are including installing a plurality of walking wheels (51) at platform truss (21) internal periphery side, just walking wheel (51) all are equipped with, a plurality of at the upper end and the lower extreme of platform truss (21) internal periphery side walking wheel (51) are along platform truss (21) internal periphery side evenly distributed, walking wheel (51) with the outer wall looks butt of steel tower festival section (1).
5. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 4, which is characterized in that: be provided with steel guard shield (6) that the cover was established in walking wheel (51) outside on platform truss (21), steel guard shield (6) are established the arc structure with the outer wall looks adaptation of steel tower segment section (1) towards one side of steel tower segment section (1), just steel guard shield (6) are set up towards one side of steel tower segment section (1) and the outer wall interval of steel tower segment section (1).
6. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 5, wherein: the steel tower comprises a steel tower segment (1), and is characterized in that a limiting guide wheel (7) is installed on one side, facing the steel tower segment (1), of the steel shield (6), the limiting guide wheel (7) is located on one side of the traveling wheel (51), and a limiting guide rail (8) for the limiting guide wheel (7) to travel is arranged on the outer wall of the steel tower segment (1) along the axial direction of the limiting guide rail.
7. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 1, which is characterized in that: the lifting mechanism (9) comprises a lifting frame (91) installed at the top of the steel tower segment (1), the peripheral side of the lifting frame (91) extends out of the peripheral wall of the steel tower segment (1), the lifting frame (91) extends out of the peripheral wall of the steel tower segment (1) and is vertically arranged in a through mode, three hoists (92) are evenly installed at the top of the lifting frame (91) along the peripheral side, each hoist (92) is connected with a steel wire rope (93), the steel wire rope (93) penetrates downwards from the position, extending out of the peripheral wall of the steel tower segment (1), of the hoisting machine (92), one end, extending out of the steel wire rope (93), of each hoist (94) is connected with a lower hanger (94), and a fixed hanger (95) matched with the lower hanger (94) is arranged on the construction steel frame platform (2).
8. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 7, which is characterized in that: the part of the lifting frame (91) extending out of the outer peripheral wall of the steel tower segment (1) is provided with a steering pulley (97) through a steering bracket (96), a steel wire rope (93) is wound on the steering pulley (97), a limiting steel ring (98) is arranged between the winch (92) and the steering pulley (97) on the lifting frame (91), and the steel wire rope (93) penetrates through the limiting steel ring (98).
9. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 1, which is characterized in that: the temporary fixing mechanism (10) comprises a plurality of hoisting lugs (101) which are uniformly arranged on the outer peripheral wall of the top of the steel tower segment (1), the construction steel frame platform (2) is provided with fixing lugs (102) which correspond to the hoisting lugs (101) one by one, and the hoisting lugs (101) are connected with the fixing lugs (102) through anchor chains (103).
10. The hanging lifting type operation platform for the cable-stayed bridge special-shaped steel tower to be quickly installed according to claim 9, which is characterized in that: a plurality of safety welding plates (11) are evenly distributed on the inner peripheral side of the construction steel frame platform (2), and the safety welding plates (11) are welded with the outer wall of the steel tower section (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420624.9A CN113152296A (en) | 2021-04-19 | 2021-04-19 | A lift formula operation platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420624.9A CN113152296A (en) | 2021-04-19 | 2021-04-19 | A lift formula operation platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower |
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| CN113152296A true CN113152296A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110420624.9A Pending CN113152296A (en) | 2021-04-19 | 2021-04-19 | A lift formula operation platform that hangs that is used for quick installation of cable-stay bridge dysmorphism steel tower |
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| CN (1) | CN113152296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116905781A (en) * | 2023-09-13 | 2023-10-20 | 水发能源集团有限公司 | Iron tower high altitude installation maintenance work platform |
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| CN116905781B (en) * | 2023-09-13 | 2023-12-12 | 水发能源集团有限公司 | Iron tower high altitude installation maintenance work platform |
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Application publication date: 20210723 |
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