CN118345703A - Hoisting construction system for door-type cable tower beam - Google Patents
Hoisting construction system for door-type cable tower beam Download PDFInfo
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- CN118345703A CN118345703A CN202410558592.2A CN202410558592A CN118345703A CN 118345703 A CN118345703 A CN 118345703A CN 202410558592 A CN202410558592 A CN 202410558592A CN 118345703 A CN118345703 A CN 118345703A
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- 230000007246 mechanism Effects 0.000 claims abstract description 173
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 115
- 239000010959 steel Substances 0.000 claims abstract description 115
- 230000002787 reinforcement Effects 0.000 claims abstract description 34
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Abstract
The invention provides a hoisting construction system for a portal cable tower beam, which relates to the field of portal cable tower construction and comprises an assembling subsystem, a lifting subsystem, a supporting subsystem and a cross brace subsystem, wherein the assembling subsystem is assembled on the ground, a beam profile steel mechanism is a hoisting supporting framework of the assembling subsystem, after concrete pouring is completed, the beam profile steel mechanism and the steel reinforcement framework are buried in the beam, the lifting subsystem is used for hoisting the assembling subsystem to a set position, the supporting subsystem is used for locking the set position of the assembling subsystem at the inner side of a tower column, the cross brace subsystem is arranged right above the beam, the front stage of the cross brace subsystem is used for fine tuning and supporting the tower column, and the rear stage of the cross brace subsystem is used for dismantling a template mechanism of the assembling subsystem, so that the risk and the construction difficulty of high-altitude operation can be greatly reduced, the construction period can be shortened, the cost can be saved, the system is suitable for various geographic environments, the economical efficiency and the safety of the construction process can be greatly improved, and the portal cable tower beam has good use value for practical engineering.
Description
Technical Field
The invention relates to the field of door type cable tower construction, in particular to a hoisting construction system for a door type cable tower beam.
Background
The cable tower structure has multiple types, mainly selects factors such as the arrangement requirement of cable, bridge floor width and girder span. The common cable tower forms are longitudinally arranged with single columns, A-shapes and inverted Y-shapes along the bridge, and are transversely arranged with single columns, double columns, gate-type, inclined leg gate-type, inverted V-shapes, inverted Y-shapes, A-shapes and the like along the bridge. The cross section of the cable tower can be a solid section according to the design requirement, and when the cross section is large in size, the cable tower is an I-shaped or box-shaped cross section, and the box-shaped cross section is more reasonable for a large-span cable-stayed bridge.
Regarding the construction of the door-type cable tower beam, a floor type bracket pouring method is generally adopted for construction at present in China. Patent publication No. CN206127895U, publication No. 2017, no. 04 and No. 26, discloses a cable tower beam floor stand-free and cable tower beam construction system, and belongs to the field of bridge construction. The cable tower crossbeam does not have floor stand and includes the main beam, tie beam and bracing, and the main beam passes through the second mounting box to be connected between the tower limb, and the tie beam is located the below of main beam and connects between the tower limb through first mounting box, and the bracing sets up the main beam with between the tie beam, but compare in prior art and the contrast file of disclosure, there is following technical problem: the construction method is limited by factors such as terrain, hydrologic environment, main tower beam and ground height difference, and the like, and has the advantages of high construction difficulty, high risk, long construction period and high cost.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a hoisting construction system for a door-type cable tower beam.
The invention is realized by the following technical scheme:
The utility model provides a hoist and mount construction system of door type cable tower crossbeam, including assembling the subsystem, promote the subsystem, support subsystem and stull subsystem, it is accomplished in ground equipment to assemble the subsystem, it includes box crossbeam shaped steel mechanism to assemble the subsystem, steel reinforcement cage and template mechanism, crossbeam shaped steel mechanism is fixed to be laid in steel reinforcement cage, crossbeam shaped steel mechanism is the hoist and mount support skeleton of assembling the subsystem, after the concrete placement is accomplished, crossbeam shaped steel mechanism and steel reinforcement cage are buried in the crossbeam, template mechanism pastes the bottom and the side at steel reinforcement cage, it is used for hoist and mount to assemble the subsystem to set for the position to promote the subsystem, the support subsystem is used for locking the settlement position of assembling the subsystem in the column inboard, the stull subsystem is laid directly over the crossbeam, stull subsystem early stage is used for the fine tuning and supports the column, stull subsystem later stage is used for demolishing the template mechanism of assembling the subsystem.
According to the technical scheme, the assembling subsystem is assembled on the ground, the beam steel mechanism is a hoisting supporting framework of the assembling subsystem, after concrete pouring is completed, the beam steel mechanism and the steel reinforcement framework are buried in the beam, the lifting subsystem is used for hoisting the assembling subsystem to a set position, the supporting subsystem is used for locking the setting position of the assembling subsystem on the inner side of the tower column, the cross bracing subsystem is arranged right above the beam, the front stage of the cross bracing subsystem is used for fine tuning and supporting the tower column, the rear stage of the cross bracing subsystem is used for dismantling a template mechanism of the assembling subsystem, and therefore the risk and construction difficulty of high-altitude operation can be greatly reduced, the construction period is shortened, the cost is saved, the method is suitable for various geographic environments, the economical efficiency and the safety of the construction process are greatly improved, and the method has good use value for practical engineering.
According to the above technical scheme, preferably, the support subsystem comprises a fine adjustment mechanism, a primary locking mechanism, a steel bar locking mechanism and a prestress locking mechanism, wherein the fine adjustment mechanism is used for fine adjustment of the assembly subsystem, the primary locking mechanism is used for primary locking of the beam profile steel mechanism at the design position of the beam, the steel bar locking mechanism locks the steel bar framework at the design position of the beam, and the prestress locking mechanism anchors the beam through prestress steel bars.
According to the technical scheme, the fine adjustment mechanism is used for finely adjusting the splicing subsystem according to the construction process, the primary locking mechanism is used for primarily locking the beam steel mechanism at the design position of the beam, the steel bar locking mechanism locks the steel bar framework at the design position of the beam, the prestress locking mechanism anchors the beam through the prestress steel bars, and then the stable locking of the cable tower beam is realized through the fine adjustment mechanism, the primary locking mechanism, the steel bar locking mechanism and the prestress locking mechanism, so that the stable construction of the beam is realized.
According to the technical scheme, preferably, the fine adjustment mechanism comprises at least four groups of fine adjustment assemblies which are symmetrically arranged in pairs, the fine adjustment assemblies are arranged between the cross beam and the cross beam subsystem, each fine adjustment assembly comprises a locking piece embedded in the tower column, a jack tensioning counterforce seat and a steel strand, the jack tensioning counterforce seats are arranged on the locking pieces, and when the assembly subsystem is hoisted in place, the jack tensioning counterforce seats pull the cross beam section steel mechanism through the steel strand.
According to the technical scheme, when the lifting subsystem is used for hoisting the assembly subsystem to the approximately set position, the jack tensioning counterforce seat pulls the beam profile steel mechanism through the steel strands, so that fine adjustment of the beam profile steel mechanism and the steel reinforcement framework is realized, and the beam profile steel mechanism and the steel reinforcement framework are in high-precision butt joint with the embedded members of the tower column.
According to the technical scheme, preferably, the preliminary locking mechanism comprises an upper supporting bracket, a lower supporting bracket and a plurality of groups of locking assemblies, wherein the upper supporting bracket and the lower supporting bracket are respectively embedded in the tower column, and the upper supporting bracket and the lower supporting bracket are fixedly connected with the end part of the beam profile steel mechanism through the locking assemblies.
According to the technical scheme, the upper supporting bracket and the lower supporting bracket are fixedly connected with the end part of the beam profile steel mechanism through the locking assembly, so that the beam profile steel mechanism is locked.
According to the technical scheme, preferably, when the assembling subsystem is hoisted in place, two ends of the steel bar framework are in through connection with steel bar heads embedded in the tower column through sleeve members to form the steel bar locking mechanism.
According to the technical scheme, the two ends of the steel reinforcement framework are connected with the steel reinforcement heads embedded in the tower column in a penetrating manner through the sleeve parts, so that the steel reinforcement framework is locked.
According to the technical scheme, preferably, the prestress locking mechanism comprises a prestress anchor cable, the middle lower part of the steel reinforcement framework is buried with a corrugated sleeve, and after the concrete pouring of the middle lower part of the cross beam is finished and reaches the initial setting strength, the prestress anchor cable penetrating through the corrugated sleeve is tensioned and locked to support the cross beam.
According to the technical scheme, after the concrete pouring of the middle lower part of the cross beam is completed and reaches the initial setting strength, the prestressed anchor cable penetrating through the corrugated sleeve is tensioned, locked and supports the cross beam, so that the prestressed anchor cable can bear the weight of the poured cross beam, the upper area of the cross beam is convenient to pour later, the cross beam is safer, and the construction efficiency is high.
According to the technical scheme, preferably, the lifting subsystem comprises at least four groups of lifting mechanisms, the lifting mechanisms are arranged on the upper supporting bracket, the lifting mechanisms pull the beam-shaped steel mechanisms through cables, and the beam-shaped steel mechanisms drive the assembly subsystem to move upwards integrally and stably.
According to the technical scheme, the lifting mechanism pulls the beam steel mechanism through the cable, the beam steel mechanism drives the assembly subsystem to move upwards wholly and stably, and in the ascending process, the deviation of the end point position of the assembly subsystem is monitored in real time, and correction is performed in time.
According to the technical scheme, preferably, the template mechanism comprises an inner template assembly and an outer template assembly which are respectively arranged on the inner side and the outer side of the cross beam, the outer template assembly comprises U-shaped template units which are sequentially spliced end to end, the U-shaped template units are connected with the inner template assembly in a locking mode through pull rods, and the U-shaped template units and the inner template assembly are spliced on the ground in advance.
According to the technical scheme, the outer die assembly comprises the U-shaped die plate units which are connected in a head-to-tail spliced mode in sequence, and the outer die assembly is optimally designed into the U-shaped die plate units, so that the assembly and the subsequent die disassembly are facilitated.
According to the technical scheme, preferably, the transverse bracing subsystem comprises a transverse supporting beam, a sliding table mechanism and a telescopic hanging table mechanism, the transverse supporting beam is fixedly connected with the tower column through a plurality of groups of pre-buried bracket units, the transverse supporting beam supports and locks the tower column, the sliding table mechanism is arranged on the lower side of the transverse supporting beam, the sliding table mechanism drives the hanging table mechanism to slide along the transverse direction of the transverse supporting beam, and the hanging table mechanism is used for hanging the U-shaped template units.
According to the technical scheme, the cross brace subsystem is used for fine tuning and supporting the tower column in the early stage, so that the tower column is prevented from inclining inwards in the processes of cross beam hoisting and construction; and the later stage of the cross bracing subsystem is used for dismantling the template mechanism of the assembly subsystem, namely the sliding table mechanism drives the lifting table mechanism to slide along the transverse direction of the transverse supporting beam, and the lifting table mechanism is used for lifting the U-shaped template unit, so that the dismounting difficulty and the construction risk of the outer die assembly are reduced.
According to the technical scheme, preferably, the slipway mechanism comprises two groups of slide bars, a movable platform and a screw rod assembly, wherein two ends of the slide bars are fixedly connected with two ends of a transverse supporting beam, the movable platform is in sliding connection with the slide bars, the screw rod assembly drives the movable platform to slide, the hanging platform mechanism comprises a first connecting part, a second connecting part and two groups of hanging machines which are symmetrically arranged, the first connecting part is fixedly connected with the movable platform, the second connecting part is in sliding connection with the first connecting part through a hydraulic rod, the hanging machines are arranged at the end parts of the second connecting part, and the two groups of hanging machines are matched with two ends of the U-shaped template unit for hanging.
According to the technical scheme, when the U-shaped template unit is disassembled, a worker pulls the part of the second connecting part to retract into the first connecting part on the beam after pouring, and at the moment, the worker can easily grasp the lifting hook of the crane and lock the lifting hook at the end part of the U-shaped template unit; after the lifting hook locks the U-shaped template unit, the hydraulic rod pushes the part of the second connecting part to slide out of the first connecting part, and at the moment, the crane can easily convey the U-shaped template unit downwards, so that a cable rope and a cross beam of the crane are effectively prevented from being scratched, and the like, and the hydraulic lifting hook is safe and efficient.
The beneficial effects of the invention are as follows:
(1) The assembling subsystem is assembled on the ground, the beam steel mechanism is a hoisting supporting framework of the assembling subsystem, the beam steel mechanism and the steel reinforcement framework are buried in the beam after concrete pouring is completed, the lifting subsystem is used for hoisting the assembling subsystem to a set position, the supporting subsystem is used for locking the set position of the assembling subsystem at the inner side of the tower column, the cross bracing subsystem is arranged right above the beam, the front stage of the cross bracing subsystem is used for fine tuning and supporting the tower column, the rear stage of the cross bracing subsystem is used for dismantling a template mechanism of the assembling subsystem, so that the risk of high-altitude operation and the construction difficulty can be greatly reduced, the construction period is shortened, the cost is saved, the method is suitable for various geographic environments, the economical efficiency and the safety of the construction process are greatly improved, and the method has good use value for practical engineering;
(2) The fine adjustment mechanism is used for fine adjustment of the assembly subsystem, the primary locking mechanism is used for primary locking of the beam profile steel mechanism at the design position of the beam, the steel reinforcement locking mechanism locks the steel reinforcement framework at the design position of the beam, the prestress locking mechanism anchors the beam through prestress steel reinforcement, and then stable locking of the cable tower beam is realized through the fine adjustment mechanism, the primary locking mechanism, the steel reinforcement locking mechanism and the prestress locking mechanism, so that stable construction of the beam is realized;
(3) The cross bracing subsystem is used for fine tuning and supporting the tower column in the early stage, and the tower column is prevented from inclining inwards in the processes of cross beam hoisting and construction; and the later stage of the cross bracing subsystem is used for dismantling the template mechanism of the assembly subsystem, namely the sliding table mechanism drives the lifting table mechanism to slide along the transverse direction of the transverse supporting beam, and the lifting table mechanism is used for lifting the U-shaped template unit, so that the dismounting difficulty and the construction risk of the outer die assembly are reduced.
Drawings
FIG. 1 is a schematic diagram of a front view of an assembly subsystem according to the present invention, wherein the assembly subsystem is assembled on the ground;
FIG. 2 shows a schematic diagram of the front view of the present invention, where the lifting subsystem is in the process of lifting the splicing subsystem;
FIG. 3 shows a schematic cross-sectional view of the structure of FIG. 2 in the direction A-A;
FIG. 4 is a schematic diagram of another front view of the present invention, with a fine adjustment mechanism for fine adjustment of the splicing subsystem;
FIG. 5 shows a schematic diagram of a further front view of the present invention with the beam casting completed and in a ready-to-disassemble configuration;
FIG. 6 is a schematic diagram showing a front view of the locking assembly of the present invention;
FIG. 7 illustrates a lower isometric view of a cross-brace sub-system of the present invention;
FIG. 8 illustrates a schematic top isometric side view of a cross-brace sub-system of the present invention;
FIG. 9 is a schematic diagram showing the front view of the cross-brace sub-system of the present invention;
Reference numerals illustrate:
1. An assembly subsystem; 2. a lifting subsystem; 3. a support subsystem; 4. a cross brace subsystem; 5. a beam profile steel mechanism; 6. a reinforcement cage; 7. a template mechanism; 8. a fine adjustment mechanism; 9. a preliminary locking mechanism; 10. a steel bar locking mechanism; 11. a pre-stress locking mechanism; 12. a locking member; 13. tensioning a counter-force seat by a jack; 14. steel strand; 15. an upper support bracket; 16. a lower support bracket; 17. a locking assembly; 18. pre-stress anchor cables; 19. a lifting mechanism; 20. a transverse support beam; 21. a slipway mechanism; 22. a hanging platform mechanism; 23. a slide bar; 24. a mobile platform; 25. a lead screw assembly; 26. a first connection portion; 27. a second connecting portion; 28. a crane; 29. and (5) a tower column.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present invention. All other embodiments, based on the embodiments of the invention, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
Example 1
As shown in the figure, the invention provides a hoisting construction system of a door-type cable tower beam, which comprises an assembling subsystem 1, a lifting subsystem 2, a supporting subsystem 3 and a transverse strut subsystem 4, wherein,
The assembly subsystem 1 is assembled on the ground, the assembly subsystem 1 comprises a box-shaped beam steel mechanism 5, a steel bar framework 6 and a template mechanism 7, the beam steel mechanism 5 is fixedly arranged in the steel bar framework 6, the beam steel mechanism 5 is a hoisting support framework of the assembly subsystem 1, after concrete pouring is completed, the beam steel mechanism 5 and the steel bar framework 6 are buried in a beam, and the template mechanism 7 is attached to the bottom and the side surface of the steel bar framework 6;
The support subsystem 3 is used for locking the setting position of the assembly subsystem 1 inside the tower column 29, the support subsystem 3 comprises a fine tuning mechanism 8, a preliminary locking mechanism 9, a steel bar locking mechanism 10 and a prestress locking mechanism 11, the fine tuning mechanism 8 is used for fine tuning the assembly subsystem 1, the preliminary locking mechanism 9 is used for preliminarily locking the beam profile steel mechanism 5 at the design position of the beam, the steel bar locking mechanism 10 is used for locking the steel bar framework 6 at the design position of the beam, the prestress locking mechanism 11 anchors the beam through prestress steel bars, wherein the fine tuning mechanism 8 comprises at least four groups of fine tuning components which are symmetrically arranged in pairs, the fine tuning components are arranged between the beam and the transverse support subsystem 4, the fine tuning components comprise locking pieces 12, jack tensioning counterforce seats 13 and steel strands 14 which are embedded in the tower column 29, the jack tensioning counterforce seats 13 are arranged on the locking pieces 12, when the assembling subsystem 1 is hoisted in place, the jack tensioning counterforce seat 13 pulls the beam steel mechanism 5 through the steel strands 14, when the hoisting subsystem 2 hoistes the assembling subsystem 1 to a roughly set position, the jack tensioning counterforce seat 13 pulls the beam steel mechanism 5 through the steel strands 14, and further fine adjustment of the beam steel mechanism 5 and the steel reinforcement framework 6 is realized, so that the beam steel mechanism 5 and the steel reinforcement framework 6 are in high-precision butt joint with the embedded members of the tower column 29, the primary locking mechanism 9 comprises an upper supporting bracket 15, a lower supporting bracket 16 and a plurality of groups of locking assemblies 17, the upper supporting bracket 15 and the lower supporting bracket 16 are respectively embedded in the tower column 29, the upper supporting bracket 15 and the lower supporting bracket 16 are fixedly connected with the end parts of the beam steel mechanism 5 through the locking assemblies 17, further locking of the beam steel mechanism 5 is realized, when the assembling subsystem 1 is hoisted in place, the two ends of the steel reinforcement framework 6 are connected with steel reinforcement heads pre-buried in the tower columns 29 in a penetrating manner through sleeve parts to form a steel reinforcement locking mechanism 10, so that locking of the steel reinforcement framework 6 is achieved, in addition, the pre-stress locking mechanism 11 comprises pre-stress anchor cables 18, corrugated sleeves are buried in the middle lower portion of the steel reinforcement framework 6, after the middle lower portion concrete pouring of the cross beam is completed and reaches initial setting strength, the pre-stress anchor cables 18 penetrating through the corrugated sleeves stretch-lock and support the cross beam, when the middle lower portion concrete pouring of the cross beam is completed and reaches initial setting strength, the pre-stress anchor cables 18 penetrating through the corrugated sleeves stretch-lock and support the cross beam, and further the pre-stress anchor cables 18 can bear the weight of the poured cross beam, the upper area of the cross beam is convenient to pour later, the cross beam is safer, and the construction efficiency is high;
The lifting subsystem 2 is used for hoisting the assembly subsystem 1 to a set position, the lifting subsystem 2 comprises at least four groups of lifting mechanisms 19, the lifting mechanisms 19 are arranged on the upper supporting bracket 15, the lifting mechanisms 19 pull the beam profile steel mechanisms 5 through cables, the beam profile steel mechanisms 5 drive the assembly subsystem 1 to move upwards wholly and steadily, and in the lifting process, the deviation of the end point positions of the assembly subsystem 1 is monitored in real time and corrected in time; the lifting mechanism 19 can adopt a three-way jack;
The transverse supporting subsystem 4 is arranged right above the transverse beam, the early stage of the transverse supporting subsystem 4 is used for fine adjustment and supporting of the tower column 29, and the later stage of the transverse supporting subsystem 4 is used for dismantling the template mechanism 7 of the assembly subsystem 1.
The working process comprises the following steps:
The assembly subsystem 1 is assembled on the ground, the beam steel mechanism 5 is a hoisting support framework of the assembly subsystem 1, after concrete pouring is completed, the beam steel mechanism 5 and the steel reinforcement framework 6 are buried in a beam, the lifting subsystem 2 is used for hoisting the assembly subsystem 1 to a set position, the support subsystem 3 is used for locking the set position of the assembly subsystem 1 at the inner side of the tower column 29, the cross bracing subsystem 4 is arranged right above the beam, the front stage of the cross bracing subsystem 4 is used for fine tuning and supporting the tower column 29, the rear stage of the cross bracing subsystem 4 is used for dismantling the template mechanism 7 of the assembly subsystem 1, further, the high-altitude operation risk and the construction difficulty can be greatly reduced, the construction period is shortened, the cost is saved, the method is suitable for various geographic environments, the economy and the safety of the construction process are greatly improved, and the method has good use value for practical engineering.
Example 2
On the basis of the embodiment 1, the template mechanism 7 comprises an inner template assembly and an outer template assembly which are respectively arranged at the inner side and the outer side of a beam, the outer template assembly comprises a U-shaped template unit which is connected with the inner template assembly in a head-to-tail splicing way in sequence, the U-shaped template unit is connected with the inner template assembly in a locking way through a pull rod, the U-shaped template unit and the inner template assembly are spliced in advance on the ground, the outer template assembly is optimally designed into the U-shaped template unit, the assembly and the subsequent disassembly are convenient, the cross bracing subsystem 4 comprises a cross bracing beam 20, a sliding table mechanism 21 and a telescopic hanging table mechanism 22, the cross bracing beam 20 can adopt a high-strength bailey beam, the cross bracing beam 20 is fixedly connected with a tower column 29 through a plurality of groups of pre-buried bracket units, the cross bracing beam 20 supports and locks the tower column 29, the sliding table mechanism 21 is arranged at the lower side of the cross bracing beam 20, the sliding table mechanism 21 drives the hanging table mechanism 22 to slide along the transverse direction of the cross bracing beam 20, the hanging table mechanism 22 is used for hanging the U-shaped template unit, the front end of the cross bracing subsystem 4 is used for fine tuning and supporting the tower column 29, and the inward inclination of the tower column 29 is prevented in the process of lifting and construction; the cross bracing subsystem 4 is used for dismantling the template mechanism 7 of the assembly subsystem 1 in the later stage, namely, the sliding table mechanism 21 drives the lifting table mechanism 22 to slide along the transverse direction of the transverse supporting beam 20, the lifting table mechanism 22 is used for lifting the U-shaped template unit, so that the dismantling difficulty and construction risk of the outer die assembly are reduced, the sliding table mechanism 21 comprises two groups of sliding rods 23, a movable platform 24 and a screw rod assembly 25, two ends of the sliding rods 23 are fixedly connected with two ends of the transverse supporting beam 20, the movable platform 24 is in sliding connection with the sliding rods 23, the screw rod assembly 25 drives the movable platform 24 to slide, the lifting table mechanism 22 comprises a first connecting part 26, a second connecting part 27 and two groups of symmetrically arranged lifting cranes 28, the first connecting part 26 is fixedly connected with the movable platform 24, the second connecting part 27 is in sliding connection with the first connecting part 26 through a hydraulic rod, the lifting cranes 28 are arranged at the end parts of the second connecting part 27, the two groups of lifting cranes 28 are matched with the two ends of the U-shaped template unit, when the U-shaped template unit is dismantled, workers pull the parts of the second connecting part 27 into the first connecting part 26 on the cross beam after the pouring is completed, and the lifting cranes can grasp the U-shaped template unit easily; after the lifting hook locks the U-shaped template unit, the hydraulic rod pushes the part of the second connecting part 27 to slide out of the first connecting part 26, and at the moment, the crane 28 can easily convey the U-shaped template unit downwards, so that the cable and the cross beam of the crane 28 are effectively prevented from being scratched, and the like, and the device is safe and efficient.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. The utility model provides a hoist and mount construction system of door type cable tower crossbeam, its characterized in that, including assembling subsystem, promotion subsystem, supporting subsystem and stull subsystem, it accomplishes at the ground equipment to assemble the subsystem, it includes box crossbeam shaped steel mechanism, steel reinforcement skeleton and template mechanism to assemble the subsystem, crossbeam shaped steel mechanism is fixed to be laid in the steel reinforcement skeleton, crossbeam shaped steel mechanism is the hoist and mount supporting skeleton of assembling the subsystem, and after the concrete placement accomplished, crossbeam shaped steel mechanism and steel reinforcement skeleton are buried in the crossbeam, template mechanism pastes and establishes in steel reinforcement skeleton's bottom and side, it is used for hoist and mount to assemble the subsystem to set for the position to promote the subsystem, the supporting subsystem is used for locking to assemble the subsystem in the inboard settlement position of column, the stull subsystem is laid directly over the crossbeam, the stull subsystem is used for minute and supports the column in the early stage, the stull subsystem later stage is used for demolishing the template mechanism of assembling the subsystem.
2. The hoisting construction system for a door-type cable tower beam according to claim 1, wherein the supporting subsystem comprises a fine adjustment mechanism, a preliminary locking mechanism, a steel bar locking mechanism and a prestress locking mechanism, the fine adjustment mechanism is used for fine adjustment of the splicing subsystem, the preliminary locking mechanism is used for preliminarily locking the beam profile steel mechanism at the design position of the beam, the steel bar locking mechanism locks the steel bar framework at the design position of the beam, and the prestress locking mechanism anchors the beam through prestress steel bars.
3. The hoisting construction system of a door-type cable tower beam according to claim 2, wherein the fine tuning mechanism comprises at least four groups of fine tuning components which are symmetrically arranged in pairs, the fine tuning components are arranged between the beam and a cross brace subsystem, the fine tuning components comprise locking pieces embedded in a tower column, jack tensioning reaction seats and steel strands, the jack tensioning reaction seats are arranged on the locking pieces, and after the splicing subsystem is hoisted in place, the jack tensioning reaction seats pull the beam profile steel mechanism through the steel strands.
4. A hoisting construction system for a door-type cable tower beam according to claim 3, wherein the primary locking mechanism comprises an upper supporting bracket, a lower supporting bracket and a plurality of groups of locking components, the upper supporting bracket and the lower supporting bracket are respectively embedded in the tower column, and the upper supporting bracket and the lower supporting bracket are fixedly connected with the end part of the beam profile steel mechanism through the locking components.
5. The hoisting construction system of a door-type cable tower beam according to claim 4, wherein when the assembly subsystem is hoisted in place, two ends of the steel reinforcement cage are in through connection with steel reinforcement heads embedded in the tower column through sleeve members to form a steel reinforcement locking mechanism.
6. The hoisting construction system for the portal jib crossbeam of claim 5, wherein the prestress locking mechanism comprises a prestress anchor cable, a corrugated sleeve is buried at the middle lower part of the steel reinforcement framework, and the prestress anchor cable penetrating through the corrugated sleeve is tensioned and locked to support the crossbeam after the concrete casting of the middle lower part of the crossbeam is completed and reaches initial setting strength.
7. The hoisting construction system for a portal jib crossbeam of claim 6, wherein the hoisting subsystem comprises at least four groups of hoisting mechanisms, the hoisting mechanisms are arranged on the upper supporting brackets, the hoisting mechanisms pull the crossbeam section steel mechanisms through cables, and the crossbeam section steel mechanisms drive the splicing subsystem to move integrally and stably upwards.
8. The hoisting construction system of the door type cable tower cross beam according to claim 1, wherein the template mechanism comprises an inner template assembly and an outer template assembly which are respectively arranged on the inner side and the outer side of the cross beam, the outer template assembly comprises U-shaped template units which are sequentially spliced end to end, the U-shaped template units are in locking connection with the inner template assembly through pull rods, and the U-shaped template units and the inner template assemblies are spliced in advance on the ground.
9. The hoisting construction system for a portal crane beam according to claim 8, wherein the cross bracing subsystem comprises a cross bracing beam, a sliding table mechanism and a telescopic hanging table mechanism, the cross bracing beam is fixedly connected with the tower column through a plurality of groups of pre-buried bracket units, the cross bracing beam supports and locks the tower column, the sliding table mechanism is arranged on the lower side of the cross bracing beam, the sliding table mechanism drives the hanging table mechanism to slide along the transverse direction of the cross bracing beam, and the hanging table mechanism is used for hoisting the U-shaped template unit.
10. The hoisting construction system of a door-type cable tower beam according to claim 9, wherein the sliding table mechanism comprises two groups of sliding bars, a moving platform and a screw rod assembly, two ends of the sliding bars are fixedly connected with two ends of the transverse supporting beam, the moving platform is in sliding connection with the sliding bars, the screw rod assembly drives the moving platform to slide, the hoisting table mechanism comprises a first connecting portion, a second connecting portion and two groups of hoisting machines which are symmetrically arranged, the first connecting portion is fixedly connected with the moving platform, the second connecting portion is in sliding connection with the first connecting portion through a hydraulic rod, the hoisting machines are arranged at the end parts of the second connecting portion, and the two groups of hoisting machines are matched with the two ends of the U-shaped template unit for hoisting.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118345703A true CN118345703A (en) | 2024-07-16 |
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