CN112593485A - Steel tower cable-stayed support for large cantilever bent cap - Google Patents
Steel tower cable-stayed support for large cantilever bent cap Download PDFInfo
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- CN112593485A CN112593485A CN202011459597.8A CN202011459597A CN112593485A CN 112593485 A CN112593485 A CN 112593485A CN 202011459597 A CN202011459597 A CN 202011459597A CN 112593485 A CN112593485 A CN 112593485A
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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Abstract
The invention discloses a steel tower diagonal draw bracket for a large cantilever bent cap, which comprises a floor bracket, a main beam, a tower frame, a triangular truss, a fixed support platform, a diagonal draw piece, a sand cylinder and a parallel connection. This a steel tower cable-stay support for big cantilever bent cap, through a plurality of sand section of thick bamboo fixed connection between girder and the distribution roof beam that the worker steel is constituteed, form the girder structure, utilize detachable connection between each part, let the pylon cable-stay support realize the modularization dismouting, but quick assembly disassembly turnover use, the extravagant support material has been avoided, the speed of taking and tearing open of support has been accelerated greatly, the triangular truss structure through the pylon cable-stay support has realized in addition that the bent cap bottom is the dogleg shape, and along with the structure of bridge floor slope change, this pylon cable-stay support has satisfied the load requirement when bulky concrete placement, and can be at top of the tower suspender and then the stretch-draw of adjustment support cantilever end, guarantee the final linear and elevation of bent cap and design unanimity.
Description
Technical Field
The invention relates to the technical field of bent cap construction, in particular to a steel tower cable-stayed support for a large cantilever bent cap.
Background
The transverse steel plate method is characterized in that a steel plate is embedded in the pier column in advance, the steel plate is welded in the pier column after the formwork is removed, and the steel support is welded on the embedded steel plate to bear the weight of the support, the formwork and the whole capping beam; the anchor ear method overcomes the weight of temporary facilities and capping beams by utilizing the maximum static friction force generated by installing the anchor ear at a proper position on the pier stud and clamping the anchor ear with the pier stud, but the anchor ear method has high one-time investment cost, and the generated maximum static friction force cannot meet the load requirement during the construction of the large-span capping beams.
The support method, in big cantilever bent cap construction, this kind of steel tower cable-stayed support can satisfy the support in the confined space and set up, and the commonality is high, the modularization has been realized to the support that draws to one side, but quick assembly disassembly turnover, the efficiency of construction is greatly improved, but current support method, in big cantilever bent cap construction, it is lower to the whole modularization dismouting efficiency of drawing the support to one side, cause the waste of support material easily, current big cantilever bent cap is comparatively inconvenient to support cantilever end amount of deflection regulation in addition, the problem that it is difficult to guarantee the final linear shape of bent cap and elevation and design unanimity exists, for solving above problem, technical personnel in the art have provided one kind can be in the confined space carry out the steel tower cable-stayed support structure that the bent cap support set up.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a steel tower cable-stayed support for a large cantilever bent cap, wherein an adjusting section is fixedly arranged on a fixed support table by using a pre-buried bolt, then the adjusting section is fixedly connected with a standard section by a connecting flange, a main beam consisting of I-steel is fixedly connected with a distribution beam by a plurality of sand cylinders, the top end of the standard section and the bottom of the main beam are fixedly arranged by the connecting flange to form a girder structure, the tower cable-stayed support realizes modularized disassembly and assembly by utilizing the detachable connection among all the components, can be quickly disassembled, assembled and recycled, avoids the waste of support materials, greatly accelerates the assembly and disassembly speed of the support, and realizes the structure that the bottom of the bent cap beam is of a fold line shape and changes along with the gradient of a bridge floor by using a triangular truss structure of the tower cable-stayed support, and meets the load requirement during large-volume concrete pouring, and moreover, the hanging strip can be tensioned on the top of the tower to further adjust the deflection of the cantilever end of the support, so that the final line shape and elevation of the bent cap beam are consistent with the design, and the problems that the overall modular dismounting efficiency of a cable-stayed support is low in the construction of a large cantilever bent cap beam and the waste of support materials is easily caused in the conventional support method, and the final line shape and elevation of the bent cap beam are difficult to be consistent with the design due to the fact that the deflection of the cantilever end of the support is inconvenient to adjust in the conventional large cantilever bent cap beam are solved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a steel tower cable-stayed support for a large cantilever bent cap comprises two floor supports, a main beam, a tower frame, two triangular trusses, a fixed supporting platform, inclined pulling pieces, sand drums and a parallel connection, wherein the floor supports are arranged, the bottom ends of the two floor supports are fixedly connected with the top of the fixed supporting platform, the top of the fixed supporting platform is fixedly connected with the lower end face of the tower frame, the tower frame is positioned in the middle of the top of the fixed supporting platform, the inner part of the main beam is fixedly connected with the middle of the surface of the tower frame, the top ends of the two floor supports are fixedly connected with the bottom of the main beam, the inclined pulling pieces are positioned on two sides of the tower frame, the bottom ends of the two inclined pulling pieces are respectively hinged with two ends of the main beam, the top ends of the two inclined pulling pieces are respectively fixedly connected with two sides of the upper end face of the tower frame, the two triangular trusses are symmetrically arranged on two, the top that the sand section of thick bamboo is located the girder surface is provided with a plurality of, and the top of a plurality of sand section of thick bamboo respectively with the bottom surface fixed connection of two triangular truss, the inside that the parallel connection is located the pylon is provided with a plurality of, and the both sides of parallel connection respectively with the both sides fixed connection of pylon inner wall.
Preferably, the two floor supports are positioned on two sides of the top of the fixed support platform, and the two floor supports are symmetrically arranged relative to the tower.
Preferably, the floor stand comprises a plurality of floor steel pipes, and the floor steel pipes comprise a standard section and an adjusting section, the top of the standard section is fixedly connected with the bottom of the girder through a connecting flange, the bottom of the standard section is fixedly connected with the top of the adjusting section through a connecting flange, and the bottom of the adjusting section is fixedly connected with the top of the fixed supporting table through a pre-embedded bolt.
Preferably, the girder includes worker steel and distribution beam, and worker steel and distribution beam all are provided with a plurality of, a plurality of worker steel all is located the coplanar, and the cross axle direction of two worker steels is parallel, two pass through distribution beam fixed connection between the worker steel, the upper surface of worker steel and the bottom fixed connection of a sand section of thick bamboo, and the top of a sand section of thick bamboo and the bottom fixed connection of distribution beam, the top of distribution beam and the bottom fixed connection of triangular truss, a plurality of the cross axle direction of worker steel is perpendicular in the coplanar with the vertical axis direction of a plurality of steel pipe that falls to the ground.
Preferably, the pylon includes that a steel protects a section of thick bamboo and compensating beam, the steel protects the top that a section of thick bamboo is located the girder and is provided with a plurality of from top to bottom, and all through parallel connection fixed connection between a plurality of steel protects one side relative, is located a plurality of the top the bottom that a steel protected a section of thick bamboo all with the middle part fixed connection of girder, and be located a plurality of steel of top and protect the top of a section of thick bamboo all with the bottom fixed connection of compensating beam, be located a plurality of steel of below and protect the top of a section of thick bamboo all with the middle part fixed connection of girder, and be located a plurality of steel of below and protect the bottom of a section of thick bamboo all through flange and fixed supporting.
Preferably, draw the piece to one side and include suspender, jib, coupler, jack and heel brace, and the suspender is provided with two, two carry out end to end pin joint through the coupler between the suspender, and the bottom that is located the below suspender is articulated with the upper surface of girder, is located the top the bottom swing joint of round pin axle and jib is passed through on the top of suspender, and the top of jib runs through the compensating beam and extends to the top of compensating beam, the jack is located the top of compensating beam, and the one end of jack and the one end fixed connection that the jib extends to the compensating beam top, the bottom of jack and the top fixed connection of heel brace, and the bottom of heel brace and the top fixed connection of compensating beam.
Preferably, the parallel connection comprises a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod are respectively provided with a plurality of cross joints, the cross joints of the first supporting rods are connected in a cross mode to form a cross, two ends of the first supporting rods are respectively fixedly connected with the surfaces of two adjacent floor steel pipes, the second supporting rods are respectively located above and below the first supporting rods, and two ends of the second supporting rods are respectively fixedly connected with the surfaces of two adjacent floor steel pipes.
Preferably, the use method of the steel tower diagonal draw bracket is as follows:
firstly, fixedly installing an adjusting section on a fixed support table by using an embedded bolt, then fixedly connecting the adjusting section with a standard section through a connecting flange, fixedly connecting a main beam consisting of I-steel with a distribution beam through a plurality of sand cylinders, and fixedly installing the top end of the standard section and the bottom of the main beam through the connecting flange to form a girder structure;
step two, fixedly mounting steel casings on a fixed support table through a connecting flange, fixedly mounting the top ends of the steel casings and the middle part of a main beam by using a pin shaft, then fixedly mounting two sides of the surface of each steel casing through a cross formed by cross connection of first support rods, fixedly mounting two ends of a second support rod and the surface of one side, opposite to the two steel casings, of each steel casing to finish assembly of a tower frame, respectively mounting jacks on two sides of the upper end surface of each balance beam, then fixedly connecting the two jacks and one ends of two hanging rods, enabling one ends of the two hanging rods to penetrate through the inside of the balance beam and to be in pin connection with the top ends of the two hanging strips through the pin shaft, and hinging the bottom ends of the two hanging strips with two ends of the main beam respectively to form a cable-stayed support structure;
and step three, finally, mounting the triangular truss on the distribution beam, building a template on the triangular truss, and pouring to complete the building of the steel tower diagonal draw bracket.
(III) advantageous effects
The invention provides a steel tower cable-stayed support for a large cantilever bent cap. Compared with the prior art, the method has the following beneficial effects:
(1) the steel tower diagonal bracing support for the large cantilever bent cap comprises two floor supports, a main beam, a tower frame, a triangular truss, two fixed support platforms, diagonal tension pieces, sand cylinders and a parallel connection through the steel tower diagonal bracing support, wherein the two floor supports are fixedly connected with the tops of the two floor supports, the top of each fixed support platform is fixedly connected with the lower end face of the tower frame, the tower frame is positioned in the middle of the top of the fixed support platform, the inner part of the main beam is fixedly connected with the middle of the surface of the tower frame, the top ends of the two floor supports are fixedly connected with the bottom of the main beam, the diagonal tension pieces are positioned on two sides of the tower frame, the bottom ends of the two diagonal tension pieces are respectively hinged with two ends of the main beam, the top ends of the two diagonal tension pieces are respectively fixedly connected with two sides of the upper end face of the tower frame, and the two sides of the triangular truss frame positioned on the, the two triangular trusses are all positioned above the main beam, a plurality of sand cylinders are arranged above the surface of the main beam, the top ends of the sand cylinders are fixedly connected with the bottom surfaces of the two triangular trusses respectively, a plurality of parallel links are arranged inside the tower frame, the two sides of the parallel links are fixedly connected with the two sides of the inner wall of the tower frame respectively, the adjusting section is fixedly arranged on the fixed support platform by using pre-embedded bolts, then the adjusting section is fixedly connected with the standard section by a connecting flange, the main beam formed by the I-steel is fixedly connected with the distribution beam by a plurality of sand cylinders, the top end of the standard section and the bottom of the main beam are fixedly arranged by the connecting flange to form a girder structure, and the detachable connection among all the components is utilized to realize the modularized disassembly and assembly of the cable-stayed support frame, the rapid disassembly and assembly can be carried out for use, and the waste of, the assembling and disassembling speed of the support is greatly accelerated.
(2) The steel tower cable-stayed support for the large cantilever bent cap is characterized in that two triangular trusses are symmetrically arranged on two sides of a tower frame through the triangular trusses, the two triangular trusses are arranged above a main beam, a plurality of sand cylinders are arranged above the surface of the main beam, the top ends of the sand cylinders are fixedly connected with the bottom surfaces of the two triangular trusses respectively, a plurality of sand cylinders are arranged inside a parallel connection tower, the two sides of the parallel connection tower are fixedly connected with the two sides of the inner wall of the tower frame respectively, the steel protecting cylinders are fixedly arranged on a fixed supporting platform through connecting flanges, the top ends of the steel protecting cylinders and the middle part of the main beam are fixedly arranged through pin shafts, then the two sides of the surface of the steel protecting cylinder are fixedly arranged through a cross formed by crisscross connection of first supporting rods, and the two ends of a second supporting rod and the surface of the opposite side of the two steel protecting cylinders are fixedly arranged, the method comprises the steps of respectively installing jacks on two sides of the upper end face of a balance beam, then fixedly connecting one ends of the two jacks and the two suspenders, enabling one ends of the two suspenders to penetrate through the balance beam, being in pin joint with the top ends of the two suspenders through pin shafts, respectively hinging the bottom ends of the two suspenders with two ends of a main beam to form a cable-stayed supporting structure, finally installing a triangular truss on a distribution beam, building a template on the triangular truss, pouring, and completing the building of a steel tower cable-stayed support.
Drawings
FIG. 1 is a front view of a steel tower cable-stayed support structure for a large cantilever bent cap according to the present invention;
fig. 2 is a side view of the steel tower cable-stayed support structure for the large cantilever capping beam.
In the figure, 1, a floor stand; 11. a floor steel pipe; 111. a standard section; 112. an adjustment section; 2. a main beam; 21. i, I-steel; 22. a distribution beam; 3. a tower; 31. a steel casing; 32. a balance beam; 4. a triangular truss; 5. fixing the support table; 6. a diagonal pull member; 61. a sling; 62. a boom; 63. a coupler; 64. a jack; 65. a foot support; 7. a sand cylinder; 8. parallel connection; 81. a first support bar; 82. a second support bar; 9. and connecting the flanges.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a steel tower cable-stayed support for a large cantilever bent cap comprises floor supports 1, main beams 2, towers 3, triangular trusses 4, fixed support tables 5, cable-stayed pieces 6, sand cylinders 7 and a parallel connection 8, wherein the floor supports 1 are provided with two, the bottom ends of the two floor supports 1 are fixedly connected with the top of the fixed support tables 5, the top of the fixed support tables 5 is fixedly connected with the lower end surface of the towers 3, the towers 3 are positioned in the middle of the top of the fixed support tables 5, the inner parts of the main beams 2 are fixedly connected with the middle part of the surface of the towers 3, the top ends of the two floor supports 1 are fixedly connected with the bottom of the main beams 2, the cable-stayed pieces 6 are positioned on two sides of the towers 3, the bottom ends of the two cable-stayed pieces 6 are respectively hinged with two ends of the main beams 2, the top ends of the two cable-stayed pieces 6 are respectively fixedly connected with two sides of the upper end surface of the towers 3, and two triangle trusses 4 all are located the top of girder 2, the top that sand section of thick bamboo 7 is located girder 2 surface is provided with a plurality of, and the top of a plurality of sand section of thick bamboo 7 respectively with the bottom surface fixed connection of two triangle trusses 4, the inside that the tie allies oneself with 8 is located pylon 3 is provided with a plurality of, and the both sides of tie allies oneself with 8 respectively with the both sides fixed connection of pylon 3 inner walls, two fall to the ground support 1 and be located the both sides at 5 tops of fixed supporting bench, and two fall to the ground support 1 and be the symmetry setting about pylon 3.
The floor stand 1 is composed of a plurality of floor steel pipes 11, the floor steel pipes 11 comprise a standard section 111 and an adjusting section 112, the top end of the standard section 111 is fixedly connected with the bottom of the main beam 2 through a connecting flange 9, the bottom end of the standard section 111 is fixedly connected with the top end of the adjusting section 112 through the connecting flange 9, and the bottom end of the adjusting section 112 is fixedly connected with the top of the fixed supporting table 5 through embedded bolts.
Pylon 3 includes that a steel protects a 31 and compensating beam 32, the steel protects the top that a 31 is located girder 2 and is provided with a plurality of, and a plurality of steel protects all through 8 fixed connection of parallel connection between the relative one side of a 31, the bottom that is located a plurality of steel of top and protects a 31 all with the middle part fixed connection of girder 2, and the top that is located a plurality of steel of top and protects a 31 all with the bottom fixed connection of compensating beam 32, the top that is located a plurality of steel of below protects a 31 all with the middle part fixed connection of girder 2, and the bottom that is located a plurality of steel of below protects a 31 all through flange 9 and the top fixed connection of fixed supporting bench 5.
The diagonal member 6 comprises hanging strips 61, a hanging rod 62, a connector 63, a jack 64 and a foot support 65, wherein the two hanging strips 61 are connected through the connector 63 in a pin mode, the bottom end of the hanging strip 61 located below is hinged to the upper surface of the main beam 2, the top end of the hanging strip 61 located above is movably connected with the bottom end of the hanging rod 62 through a pin shaft, the top end of the hanging rod 62 penetrates through the balance beam 32 and extends to the upper portion of the balance beam 32, the jack 64 is located above the balance beam 32, one end of the jack 64 is fixedly connected with one end, extending to the upper portion of the balance beam 32, of the jack 64, the top portion of the foot support 65, and the bottom portion of the foot support 65 is fixedly connected with the top portion of the balance beam 32.
The parallel connection 8 comprises a first supporting rod 81 and a second supporting rod 82, the first supporting rod 81 and the second supporting rod 82 are respectively provided with a plurality of parts, the two first supporting rods 81 are connected in a cross-shaped staggered manner to form a cross, two ends of each first supporting rod 81 are respectively fixedly connected with the two adjacent ground steel pipes 11, the second supporting rods 82 are respectively located above and below the first supporting rods 81, and two ends of each second supporting rod 82 are respectively fixedly connected with the two adjacent ground steel pipes 11.
The use method of the steel tower diagonal draw bracket comprises the following steps:
firstly, fixedly installing an adjusting section 112 on a fixed support table 5 by using embedded bolts, then fixedly connecting the adjusting section 112 with a standard section 111 through a connecting flange 9, fixedly connecting a main beam 2 consisting of I-steel 21 with a distribution beam 22 through a plurality of sand cylinders 7, and fixedly installing the top end of the standard section 111 and the bottom of the main beam 2 through the connecting flange 9 to form a girder structure;
step two, fixedly installing a steel pile casing 31 on a fixed support table 5 through a connecting flange 9, fixedly installing the top end of the steel pile casing 31 and the middle part of a main beam 2 by using a pin shaft, then fixedly installing two sides of the surface of the steel pile casing 31 through a cross formed by cross-shaped staggered connection of first support rods 81, simultaneously fixedly installing two ends of a second support rod 82 and the surface of one side of the opposite side of the two steel pile casings 31 to finish the assembly of a tower frame 3, respectively installing jacks 64 on two sides of the upper end surface of the balance beam 32, then fixedly connecting the two jacks 64 and one ends of two hanging rods 62, penetrating one ends of the two hanging rods 62 through the inside of the balance beam 32, and pin-connecting the two hanging rods 61 with the top ends of the two hanging strips 61 through pin shafts, and hinging the bottom ends of the two hanging strips 61 with two ends of the main beam 2 respectively to form a cable-stayed;
and step three, finally, mounting the triangular truss 4 on the distribution beam 22, building a template on the triangular truss 4, and pouring to complete the building of the steel tower diagonal draw bracket.
And those not described in detail in this specification are well within the skill of those in the art.
The working principle is that when in use, an adjusting section 112 is fixedly arranged on a fixed support platform 5 by using embedded bolts, then the adjusting section 112 is fixedly connected with a standard section 111 by a connecting flange 9, a main beam 2 consisting of I-steel 21 is fixedly connected with a distribution beam 22 by a plurality of sand cylinders 7, the top end of the standard section 111 and the bottom of the main beam 2 are fixedly arranged by the connecting flange 9 to form a girder structure, a steel casing 31 is fixedly arranged on the fixed support platform 5 by the connecting flange 9, the top end of the steel casing 31 and the middle part of the main beam 2 are fixedly arranged by using pin shafts, then two sides of the surface of the steel casing 31 are fixedly arranged by a cross formed by criss-cross connection of a first supporting rod 81, meanwhile, two ends of a second supporting rod 82 and the surface of the opposite side of the two steel casings 31 are fixedly arranged, the assembly of a tower 3 is completed, jacks 64 are respectively arranged on two sides of the upper end surface of a balance beam 32, and then, fixedly connecting one ends of the two jacks 64 and the two suspension rods 62, enabling one ends of the two suspension rods 62 to penetrate through the balance beam 32 and be in pin joint with the top ends of the two suspension strips 61 through pin shafts, hinging the bottom ends of the two suspension strips 61 with the two ends of the main beam 2 respectively to form a cable-stayed support structure, finally, installing the triangular truss 4 on the distributing beam 22, building a template on the triangular truss 4, pouring, and completing the building of the steel tower cable-stayed support.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a steel tower cable-stay support for big cantilever bent cap which characterized in that: comprises floor supports (1), a main beam (2), a tower frame (3), a triangular truss (4), two fixed support tables (5), inclined pull pieces (6), sand cylinders (7) and a parallel connection (8), wherein the floor supports (1) are provided with two ground supports, the bottoms of the two floor supports (1) are fixedly connected with the top of the fixed support tables (5), the top of the fixed support tables (5) is fixedly connected with the lower end face of the tower frame (3), the tower frame (3) is positioned in the middle of the top of the fixed support tables (5), the inner part of the main beam (2) is fixedly connected with the middle of the surface of the tower frame (3), the top ends of the two floor supports (1) are fixedly connected with the bottom of the main beam (2), the inclined pull pieces (6) are arranged on two sides of the tower frame (3), and the bottoms of the two inclined pull pieces (6) are respectively hinged with two ends of the main beam (2), and the top of two diagonal tension pieces (6) respectively with the both sides fixed connection of pylon (3) up end, the bilateral symmetry that triangle truss (4) are located pylon (3) is provided with two, and two triangle trusses (4) all are located the top of girder (2), the top that sand section of thick bamboo (7) are located girder (2) surface is provided with a plurality of, and the top of a plurality of sand section of thick bamboo (7) respectively with the bottom surface fixed connection of two triangle trusses (4), the inside that parallel connection (8) are located pylon (3) is provided with a plurality of, and the both sides of parallel connection (8) respectively with the both sides fixed connection of pylon (3) inner wall.
2. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: two the floor supports (1) are positioned at two sides of the top of the fixed support platform (5), and the two floor supports (1) are symmetrically arranged relative to the tower frame (3).
3. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: fall to ground support (1) and fall to the ground steel pipe (11) by a plurality of and constitute, and fall to the ground steel pipe (11) including standard section (111) and regulation section (112), flange (9) fixed connection is passed through with the bottom of girder (2) in the top of standard section (111), and flange (9) fixed connection is passed through with the top of adjusting section (112) in the bottom of standard section (111), the bottom of adjusting section (112) passes through buried bolt fixed connection with the top of fixed brace table (5).
4. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: girder (2) are including worker steel (21) and distribution beam (22), and worker steel (21) and distribution beam (22) all are provided with a plurality of, a plurality of worker steel (21) all lie in the coplanar, and the cross axis direction of two worker steels (21) is parallel, two through distribution beam (22) fixed connection between worker steel (21), the upper surface of worker steel (21) and the bottom fixed connection of sand section of thick bamboo (7), and the top of sand section of thick bamboo (7) and the bottom fixed connection of distribution beam (22), the top of distribution beam (22) and the bottom fixed connection of triangle truss (4), a plurality of the cross axis direction of worker steel (21) is perpendicular in the coplanar with the vertical axis direction of a plurality of floor steel pipe (11).
5. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: pylon (3) protects a section of thick bamboo (31) and compensating beam (32) including the steel, the steel protects the below that a section of thick bamboo (31) is located girder (2) and is provided with a plurality of, and a plurality of steel protects all through parallel connection (8) fixed connection between the relative one side of a section of thick bamboo (31), is located a plurality of the top the bottom that a section of thick bamboo (31) was protected to the steel all with the middle part fixed connection of girder (2), and be located the top that a plurality of steel protected a section of thick bamboo (31) of top all with the bottom fixed connection of compensating beam (32), be located the top that a plurality of steel protected a section of thick bamboo (31) of below all with the middle part fixed connection of girder (2), and be located the bottom that a plurality of steel protected a section of thick bamboo (31) of below all through flange (9) and the top fixed connection of fixed supporting bench.
6. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: the inclined pulling piece (6) comprises a hanging strip (61), a hanging rod (62), a connector (63), a jack (64) and a foot support (65), two hanging belts (61) are arranged, the two hanging belts (61) are connected by a connector (63) in a pin joint way from end to end, the bottom end of the hanging strip (61) positioned below is hinged with the upper surface of the main beam (2), the top end of the hanging strip (61) positioned above is movably connected with the bottom end of the hanging rod (62) through a pin shaft, the top end of the suspension rod (62) penetrates through the balance beam (32) and extends to the upper part of the balance beam (32), the jack (64) is positioned above the balance beam (32), one end of the jack (64) is fixedly connected with one end of the suspension rod (62) extending to the upper part of the balance beam (32), the bottom of the jack (64) is fixedly connected with the top of the foot support (65), and the bottom of the foot support (65) is fixedly connected with the top of the balance beam (32).
7. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: parallel connection (8) include first bracing piece (81) and second bracing piece (82), and first bracing piece (81) all are provided with a plurality of, two with second bracing piece (82) first bracing piece (81) cross-over connection forms the cross, and the both ends of the first bracing piece of a plurality of (81) respectively with two adjacent steel pipe (11) fixed surface that fall to ground, a plurality of second bracing piece (82) are located the top and bottom of the first bracing piece of a plurality of (81) respectively, and the both ends of a plurality of second bracing piece (82) respectively with two adjacent steel pipe (11) fixed surface that fall to ground are connected.
8. The steel tower cable-stayed support for the large cantilever capping beam according to claim 1, wherein: the use method of the steel tower diagonal draw bracket comprises the following steps:
firstly, fixedly installing an adjusting section (112) on a fixed support table (5) by using embedded bolts, then fixedly connecting the adjusting section (112) with a standard section (111) through a connecting flange (9), fixedly connecting a main beam (2) consisting of I-steel (21) with a distribution beam (22) through a plurality of sand cylinders (7), and fixedly installing the top end of the standard section (111) and the bottom of the main beam (2) through the connecting flange (9) to form a girder structure;
step two, fixedly installing a steel pile casing (31) on a fixed support table (5) through a connecting flange (9), fixedly installing the top end of the steel pile casing (31) and the middle part of a main beam (2) by using a pin shaft, fixedly installing two sides of the surface of the steel pile casing (31) through a cross formed by crisscross connection of first support rods (81), fixedly installing two ends of a second support rod (82) and the surface of one side of the two steel pile casings (31) opposite to each other to finish the assembly of a tower frame (3), respectively installing jacks (64) on two sides of the upper end surface of a balance beam (32), fixedly connecting two jacks (64) and one end of two hanging rods (62), penetrating one ends of the two hanging rods (62) through the inside of the balance beam (32), and pin-connecting the two hanging rods (61) with the top ends of the two hanging strips (61), and hinging the bottom ends of the two hanging strips (61) with two ends of the main beam (2) respectively, forming a diagonal bracing structure;
and step three, finally, installing the triangular truss (4) on the distribution beam (22), building a template on the triangular truss (4), and pouring to complete the building of the steel tower cable-stayed support.
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| CN114215365A (en) * | 2021-12-21 | 2022-03-22 | 中建钢构天津有限公司 | Method for mounting steel beam |
| CN114657882A (en) * | 2022-03-25 | 2022-06-24 | 南通大学 | Super-huge type 0# block cast-in-place box girder bracket structure and mounting method thereof |
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| CN112593485B (en) | 2021-07-23 |
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