CN114575619A - Frame beam prestress reinforcing device and construction method thereof - Google Patents
Frame beam prestress reinforcing device and construction method thereof Download PDFInfo
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- CN114575619A CN114575619A CN202210384143.1A CN202210384143A CN114575619A CN 114575619 A CN114575619 A CN 114575619A CN 202210384143 A CN202210384143 A CN 202210384143A CN 114575619 A CN114575619 A CN 114575619A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention relates to the technical field of frame beams and discloses a frame beam prestress reinforcing device and a construction method thereof, wherein the frame beam prestress reinforcing device comprises a plurality of groups of supporting square blocks fixed on the bottom surface of a frame beam, a plurality of steel wire pull ropes penetrating through the supporting square blocks and a twisting mechanism arranged on the bottom surface of the frame beam and used for twisting the steel wire pull ropes into a twist shape, the twisting mechanism comprises a locking square column fixed on the bottom surface of the frame beam and a spiral cylinder arranged on the bottom surface of the frame beam in a sliding manner, the locking square column is provided with a spiral through hole, the spiral cylinder is positioned on the peripheral surface of the spiral cylinder and provided with spiral grains in a surrounding manner, and the spiral cylinder is in spiral fit with the locking square column; and a power mechanism for driving the spiral cylinder to rotate inside the locking square column is arranged on the bottom surface of the frame beam. This application has the gravity and the pulling force effect that improve steel strand wires self and do not tighten gradually again, can't carry out the effect of reinforcing effect this moment gradually.
Description
Technical Field
The invention relates to the technical field of frame beams, in particular to a frame beam prestress reinforcing device and a construction method thereof.
Background
The prestress is to avoid the crack of the reinforced concrete structure from appearing too early, and to make full use of the high-strength steel bar and the high-strength concrete, so to speak, before the structure is loaded, the prestress is generated to reduce or offset the concrete tension caused by the load, reduce the floor load and ensure that the bending bearing capacity of the span of the slab is sufficient. The prior art commonly used reinforcing methods include a carbon fiber pasting reinforcing method, a steel plate pasting reinforcing method, a section enlarging method and the like.
Chinese utility model patent of No. CN209145324U discloses a stride cast-in-place board greatly with external prestressing force reinforced structure, include the cast-in-place board body and set up in the prestressing force reinforcing mechanism who waters the board body surface, prestressing force reinforcing mechanism includes horizontal steel strand wires, vertical steel strand wires and main steering, and horizontal steel strand wires anchor between two longitudinal frame roof beams of cast-in-place board body, vertical steel strand wires anchor between two transverse frame roof beams of cast-in-place board body, and the middle part of horizontal steel strand wires and vertical steel strand wires all turns to through main steering.
In view of the above-mentioned related technologies, the inventor believes that the long-span cast-in-place slab, whether a transverse steel strand or a longitudinal steel strand, is directly anchored between two longitudinal frame beams of the cast-in-place slab body or between two transverse frame beams of the cast-in-place slab body. In the long-time use of steel strand wires, the steel strand wires can not tighten gradually because of the action of self gravity and pulling force, and can not reinforce gradually at this moment.
Disclosure of Invention
In order to solve the problems that the self gravity and tension of a steel strand are gradually not tightened and the reinforcement effect cannot be performed gradually, the application provides the frame beam prestress reinforcement device and the construction method thereof.
In a first aspect, the invention provides a frame beam prestress reinforcing device, which adopts the following technical scheme:
a frame beam prestress reinforcing device comprises a plurality of groups of support square blocks fixed on the bottom surface of a frame beam, a plurality of steel wire pull ropes penetrating through the support square blocks and a twisting mechanism arranged on the bottom surface of the frame beam and used for twisting the steel wire pull ropes into a twisted shape, wherein the twisting mechanism comprises a locking square column fixed on the bottom surface of the frame beam and a spiral cylinder arranged on the bottom surface of the frame beam in a sliding manner, the steel wire pull ropes are fixed on the side surfaces of the spiral cylinder, the locking square column is provided with spiral through holes along the length direction of the steel wire pull ropes, the spiral cylinder is positioned on the outer peripheral surface of the spiral cylinder and provided with spiral grains in a surrounding manner, and the spiral cylinder is in spiral fit with the locking square column; and a power mechanism for driving the spiral cylinder to rotate in the locking square column is arranged on the bottom surface of the frame beam.
Through adopting above-mentioned technical scheme, rotate inside locking square column through power unit drive spiral cylinder, a plurality of steel wire stay cords are twisted simultaneously and are twisted the form of twisted, make the steel wire stay cord shorten the rope length through this mode, and the steel wire stay cord remains the state of tightening throughout promptly, has improved the gravity and the pulling force effect of steel strand wires self and has gradually no longer tightened, can't carry out the problem of reinforcing effect this moment gradually.
Optionally, a locking mechanism for locking the spiral cylinder is arranged inside the locking square column, the locking mechanism comprises a ratchet gear rotatably arranged inside the locking square column, a limiting square cylinder fixed on the outer side wall of the locking square column and a limiting inclined block arranged inside the limiting square cylinder in a penetrating mode, the side face of the limiting inclined block close to the ratchet gear is an inclined face and is attached to the inclined face of the tooth of the ratchet gear, a gear through hole is formed in the ratchet gear, the spiral cylinder penetrates through the gear through hole and penetrates through the ratchet gear, and the ratchet gear is provided with a limiting mechanism used for enabling the ratchet gear and the spiral cylinder to rotate synchronously through the gear through hole.
Through adopting above-mentioned technical scheme, power unit drive spiral cylinder is rotatory in the inside while of locking square column, and ratchet gear passes through stop gear and rotates along with spiral cylinder synchronization. The side surface of the limit inclined block is matched with the inclined surface of the tooth of the ratchet wheel gear, so that the ratchet wheel gear can only rotate towards a single direction. When the power mechanism fails, the locking mechanism can timely respond, so that the spiral cylinder is not easy to reverse.
Optionally, the spiral cylinder is provided with a limiting groove at a position located on the outer peripheral surface of the spiral cylinder along the length direction of the spiral cylinder, the limiting mechanism comprises a limiting lug fixed inside the ratchet gear through the gear through hole, and the limiting lug is clamped inside the spiral cylinder through the limiting groove.
Through adopting above-mentioned technical scheme, inject through stop gear between spiral cylinder and the ratchet gear, the ratchet gear can be along with spiral cylindrical rotation and when rotating, the spiral cylinder can slide the setting along self length direction for the ratchet gear to this realizes that the ratchet gear does not influence the removal of spiral cylinder with the synchronous pivoted of spiral cylinder.
Optionally, the inside barrier mechanism that is used for avoiding the steel wire stay cord to kick-back as far as possible that is provided with of support square, barrier mechanism including fixed mounting in support the inside loudspeaker ring of square, loudspeaker ring cover is located steel wire stay cord week side, loudspeaker ring inner peripheral surface orientation is close to locking square column direction slope.
Through adopting above-mentioned technical scheme, when the power unit of the device became invalid, the steel wire stay cord appeared moving in the opposite direction, and the tip that the loudspeaker ring was close to the locking square column this moment leads to the loudspeaker ring to restrict the steel wire stay cord and moves in the opposite direction because the opening is on the small side, and the loudspeaker ring makes the easy unilateral of steel wire stay cord move, and is difficult to carry out the movement in the opposite direction.
Optionally, the horn ring is close to the outer peripheral face of locking square column with the axle center of horn ring encircles for the axial and has seted up a plurality of groups triangle-shaped tooth's socket, and triangle-shaped tooth's socket is transversal triangle-shaped's of personally submitting through groove structure, and triangle-shaped tooth's socket runs through the horn ring is close to the tip of locking square column.
By adopting the technical scheme, the triangular tooth socket is formed on the peripheral surface of the horn ring, so that the tooth structure similar to sharp teeth is formed on the peripheral surface of the horn ring. When the steel wire rope moves towards the opposite direction, the end part of the tooth structure of the horn ring can abut against the periphery side of the steel wire rope, so that the horn ring can limit the steel wire rope to move towards the opposite direction without considering the size of the horn ring.
Optionally, the frame roof beam bottom surface is provided with and is used for reinforcing and revolves to twist a plurality of groups that are twist form the strengthening mechanism of steel wire stay cord, strengthening mechanism including install in the rotatory ring of frame roof beam bottom surface and fixed mounting in the cross frame of rotatory ring inner peripheral surface, a plurality of steel wire stay cords overlap jointly and establish a set ofly rotatory ring, rotatory ring follows steel wire stay cord length direction is provided with a plurality of groups, a plurality of groups rotatory ring all install in locking square column with between the support square, the cross frame will rotatory ring inboard is separated into the fan-shaped region of a plurality of, a plurality of groups the steel wire stay cord passes through a plurality of fan-shaped region wears out rotatory ring.
By adopting the technical scheme, when the screwing mechanism screws the steel wire pull ropes, the rotating ring is rotatably arranged on the bottom surface of the frame beam until the plurality of steel wire pull ropes are completely tightened. When a plurality of steel wire stay ropes are tightened, the working personnel fixedly install the rotary ring on the bottom surface of the frame beam, so that when the power mechanism fails, the rotary ring can also prevent the steel wire stay ropes from rotating.
Optionally, the rotating ring is disposed in an area where the twisted wire rope is twisted.
Through adopting above-mentioned technical scheme, set up rotatory ring in twisting the region that is the steel wire stay cord of twist form soon, torsional force between the steel wire stay cord makes steel wire stay cord butt in the cross frame side of rotatory ring to this frictional force that realizes steel wire stay cord and cross frame increases, makes the steel wire stay cord difficult to cross frame surface take place to slide.
Optionally, the power mechanism includes a locking straight plate installed on the bottom surface of the frame beam, a hydraulic cylinder fixedly connected between the locking straight plate and the locking square column, and a stretching straight rod fixed on the side surface of the spiral cylinder close to the locking straight plate, and the stretching straight rod is rotatably installed on the side surface of the locking straight plate.
Through adopting above-mentioned technical scheme, the staff circular telegram starts the pneumatic cylinder, and the pneumatic cylinder makes between lock solid straight plate and the locking square column more and more far, and more far between spiral cylinder and the support square simultaneously, and spiral cylinder is rotatory inside the locking square column along self axis of rotation direction for install in the regional steel wire rope of rotatory ring and twisted and be the twist form, until four steel wire rope tend to the state of tightening.
In a second aspect, the construction method of the frame beam pre-stress reinforcement device provided by the invention adopts the following technical scheme:
a construction method of a frame beam prestress reinforcing device comprises the following steps:
s1: a worker builds a frame beam; s2: fixing the support square block on the bottom surface of the frame beam, and fixing the locking square column on the bottom surface of the frame beam; s3: the four steel wire pull ropes penetrate through the supporting square blocks, the steel wire pull ropes also penetrate through the horn rings in the supporting square blocks, the end parts of the steel wire pull ropes penetrate through the rotating rings, and the end parts of the steel wire pull ropes penetrate through the spiral cylinders; s4: the spiral cylinder penetrates through the locking square column in a screwing mode, and meanwhile, a limiting lug of the spiral cylinder is clamped in the ratchet gear through a limiting groove; s5: the worker welds the stretching straight rod on the side surface of the spiral cylinder far away from the support square block, one end of the stretching straight rod far away from the spiral cylinder penetrates through the locking straight plate, and one end of the stretching straight rod far away from the spiral cylinder is rotatably installed on the locking straight plate; s6: starting a hydraulic cylinder, wherein the hydraulic cylinder enables the locking straight plate and the locking square column to be farther and farther, meanwhile, the spiral cylinder and the supporting square block to be farther and farther, and the spiral cylinder rotates inside the locking square column along the rotation axis direction of the spiral cylinder, so that a steel wire rope arranged in the area of the rotating ring is twisted into a twisted shape; s7: when the four steel wire pull ropes are completely tightened, the locking straight plate is fixed on the bottom surface of the frame beam, then the circular ring straight plate is welded on the circumferential surface of the rotary circular ring, and finally the rotary circular ring is fixed on the bottom surface of the frame beam.
Through adopting above-mentioned technical scheme, make the steel wire stay cord tighten through the mode of twisting soon, change the mode that traditional mode directly is taut the steel wire stay cord then is fixed in the mounting to this try best avoids the steel wire stay cord because the dead weight reason leads to the unable tight problem of steel wire stay cord. Meanwhile, the device can reinforce the prestress of the frame beam to the maximum degree by arranging a plurality of groups of reinforcing mechanisms, limiting mechanisms, power mechanisms and the like.
In summary, the present application includes at least one of the following beneficial technical effects:
1. inside power unit drive spiral cylinder rotated in locking square column, a plurality of steel wire stay cords were twisted simultaneously and are twisted the form of twisted patterns, make the steel wire stay cord shorten the rope length through this mode, and the steel wire stay cord remains the state of tightening throughout promptly, has improved the gravity of steel strand wires self and pulling force effect and has not tightened gradually again, can't carry out the problem of reinforcing effect this moment gradually. (ii) a
2. The power mechanism drives the spiral cylinder to rotate inside the locking square column, and the ratchet gear synchronously rotates along with the spiral cylinder through the limiting mechanism. The side surface of the limit inclined block is matched with the inclined surface of the tooth of the ratchet wheel gear, so that the ratchet wheel gear can only rotate towards a single direction. When the power mechanism fails, the locking mechanism can timely respond, so that the spiral cylinder is not easy to reverse;
3. because the outer peripheral surface of the horn ring is provided with the triangular tooth socket, the outer peripheral surface of the horn ring forms a tooth structure similar to a sharp tooth. When the steel wire rope moves towards the reverse direction, the end part of the tooth structure of the horn ring can abut against the periphery side of the steel wire rope, so that the horn ring can limit the steel wire rope to move towards the reverse direction without considering the size of the horn ring.
Drawings
Fig. 1 is a schematic structural view of the present invention mounted on the bottom surface of a frame beam.
Fig. 2 is an inverted schematic view of the entirety of fig. 1.
Fig. 3 is a cross-sectional view of the support block, the locking square column and the limiting square cylinder of fig. 2 along the line a-a.
Fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Fig. 5 is a schematic structural diagram of a horn ring in the embodiment of the present application.
Fig. 6 is an enlarged schematic view of a portion C in fig. 3.
Description of reference numerals: 11. supporting the square block; 12. a support straight plate; 13. a first bolt through hole; 14. a first expansion bolt; 15. supporting the through hole; 16. a horn ring; 17. a first diameter; 18. a second diameter; 19. a triangular tooth socket; 20. a steel wire rope; 21. a locking device; 22. locking the square column; 23. locking the straight plate; 24. a bolt through hole II; 25. a second expansion bolt; 26. a spiral through hole; 27. a helical cylinder; 28. a helical pattern; 29. a cylindrical through hole; 30. an anti-drop cylinder; 31. a square column straight plate; 32. locking the straight plate; 33. a bolt through hole III; 34. a third expansion bolt; 35. a square column through hole; 36. locking the through hole; 37. stretching the straight rod; 38. locking the circular ring; 39. a hydraulic cylinder; 40. locking the groove; 41. a ratchet gear; 43. a gear through hole; 44. a limiting groove; 45. a limiting bump; 46. assembling the through hole; 47. a limiting square cylinder; 48. limiting a square hole; 49. a limiting spring; 50. a limit oblique block; 51. rotating the circular ring; 52. a cross frame; 53. a sector area; 54. a circular straight plate; 55. a bolt through hole IV; 56. and D, expanding the bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a frame beam prestress reinforcing device and a construction method thereof. Referring to fig. 1 to 3, the frame girder pre-stress reinforcing apparatus and the construction method thereof include two groups of support blocks 11 installed on the bottom surface of the frame girder in the length direction of the frame girder, and the two groups of support blocks 11 are oppositely disposed, and the support blocks 11 are block structures in the shape of a rectangular parallelepiped. Support two sides all welded around the square 11 and support straight board 12, support straight board 12 and set up two sets of bolt through-holes 13 that run through two sides about supporting straight board 12 along frame roof beam length direction, every group bolt through-hole 13 all includes and sets up in three bolt through-hole 13 of supporting straight board 12 bottom surface along frame roof beam width direction. The supporting straight plate 12 is provided with a first expansion bolt 14 through a first bolt through hole 13, so that the supporting straight plate 12 is fixed on the bottom surface of the frame beam through the first expansion bolt 14.
Referring to fig. 4 and 5, two groups of supporting blocks 11 have supporting through holes 15 on their side walls, and one supporting through hole 15 is disposed on the side surface of each supporting block 11 near four corners. Each supporting block 11 is fixed with a horn ring 16 through a supporting through hole 15, and the horn ring 16 is a horn-shaped annular structure. The diameters of the openings of the two groups of support square blocks 11, close to the side surfaces, of the horn rings 16 are the first diameters 17, the diameters of the openings of the two groups of support square blocks 11, far away from the side surfaces, of the horn rings 16 are the second diameters 18, and the first diameters 17 are larger than the second diameters 18. The end parts, far away from each other, of the horn rings 16 of the two groups of support blocks 11 are respectively provided with a triangular tooth groove 19, the positions, located on the outer peripheral surfaces of the horn rings 16, of the triangular tooth grooves 19 are circumferentially provided with a circle by taking the axis of the horn rings 16 as the axial direction, and the triangular tooth grooves 19 are through groove structures with triangular cross sections. Install four steel wire stay cords 20 between the side that two sets of support squares 11 are close to each other, the 16 one-to-one of loudspeaker ring of 20 both ends of steel wire stay cord and two sets of support squares 11, it is inboard that the loudspeaker ring 16 that corresponds is passed to 20 tip of steel wire stay cord, because the effect of loudspeaker ring 16 makes steel wire stay cord 20 be located support squares 11 inside can only towards the unilateral slip, steel wire stay cord 20 wears out support squares 11 through supporting through-hole 15.
Referring to fig. 3 and 6, the two sets of support blocks 11 are provided with locking devices 21 for locking the wire rope 20 at the sides away from each other, and the two sets of locking devices 21 are symmetrically arranged. The locking device 21 comprises a locking square column 22 which is arranged on the bottom surface of the frame beam along the length direction of the frame beam, and the locking square column 22 is of a columnar structure with a cuboid shape. The locking square column 22 is located the position of two sides all along self length direction and is fixed with locking straight plate 23 around self to locking straight plate 23 has seted up six groups along self length direction and has run through two 24 of bolt through-hole on two sides about self, and locking straight plate 23 is worn to be equipped with expansion bolts two 25 through two 24 of bolt through-hole, realizes this that locking straight plate 23 is fixed in the frame bottom of a beam face through two 25 of expansion bolts. Locking square column 22 is seted up and is run through the spiral through-hole 26 of two sides about self, and locking square column 22 wears to be equipped with spiral cylinder 27 through spiral through-hole 26, and spiral cylinder 27 is located the position of self outer peripheral face and uses the axle center of self to encircle as the axial and be provided with spiral line 28, and spiral line 28 of spiral cylinder 27 and the spiral through-hole 26 of locking square column 22 can cooperate to this realizes that spiral cylinder 27 screwed connection is inside locking square column 22. Cylindrical through holes 29 have all been seted up in the side of spiral cylinder 27 near the support square 11 and the position of being close to four apex angles of locking square column 22, and spiral cylinder 27 is worn out and the welding has anticreep cylinder 30 through cylindrical through hole 29 to the tip that steel wire stay cord 20 is close to spiral cylinder 27, and anticreep cylinder 30 welds in the side of support square 11 is kept away from to spiral cylinder 27.
Referring to fig. 2 and 3, a square column straight plate 31 is welded on the side of the locking square column 22 away from the support block 11, a locking straight plate 32 is installed on one side of the square column straight plate 31 away from the locking square column 22, and the square column straight plate 31 and the locking straight plate 32 are arranged opposite to each other. Six bolt through holes three 33 penetrating through the upper side surface and the lower side surface of the locking straight plate 32 are formed in the length direction of the locking straight plate 32, and expansion bolts three 34 penetrate through the locking straight plate 32 through the bolt through holes three 33, so that the locking straight plate 32 is fixed to the bottom surface of the frame beam through the expansion bolts three 34. The square column straight plate 31 is provided with a square column through hole 35 penetrating through the left side surface and the right side surface of the square column straight plate, the square column through hole 35 is communicated with the spiral through hole 26, and the locking straight plate 32 is provided with a locking through hole 36 penetrating through the left side surface and the right side surface of the locking straight plate. The side of the spiral cylinder 27 far from the support block 11 is fixedly connected with a stretching straight rod 37, and the end of the stretching straight rod 37 far from the support block 11 passes through the square column through hole 35 and out of the square column straight plate 31 and passes through the locking through hole 36 and out of the locking straight plate 32. Locking rings 38 are respectively abutted to the left side surface and the right side surface of the locking straight plate 32, and the locking rings 38 are coaxially fixed on the peripheral side of the stretching straight rod 37, so that the stretching straight rod 37 is rotatably mounted on the side wall of the locking straight plate 32 through the locking rings 38. The side wall of the square column straight plate 31 close to the locking straight plate 32 is fixed with a hydraulic cylinder 39, the hydraulic cylinders 39 are arranged in a group at the front side and the rear side of the stretching straight rod 37, and the piston rods of the hydraulic cylinders 39 are fixed on the side surface of the locking straight plate 32 close to the square column straight plate 31.
Referring to fig. 3 and 6, the inner circumferential surface of the spiral through hole 26 is formed with a locking groove 40, and the locking groove 40 has a groove structure having a circular cross section. The locking square column 22 is provided with a ratchet gear 41 through a locking groove 40, and planar thrust bearings are respectively arranged on the left side and the right side of the ratchet gear 41, so that the ratchet gear 41 is rotatably arranged inside the locking square column 22 through the planar thrust bearings. The ratchet gear 41 is provided with a gear through hole 43 along the rotation axis thereof in the axial direction, and the spiral cylinder 27 passes through the ratchet gear 41 through the gear through hole 43. The spiral cylinder 27 is located at the position of the outer peripheral surface of the spiral cylinder and is provided with a limiting groove 44 along the length direction of the spiral cylinder, the ratchet gear 41 is fixed with a limiting lug 45 through a gear through hole 43, the limiting lug 45 is clamped inside the spiral cylinder 27 through the limiting groove 44, and the spiral cylinder 27 can drive the ratchet gear 41 to rotate while the spiral cylinder 27 can slide along the rotation axis direction of the ratchet gear 41.
Referring to fig. 3 and 6, the front and rear side walls of the locking square column 22 are provided with assembling through holes 46, the front and rear side walls of the locking square column 22 are fixedly provided with limiting square cylinders 47, and the limiting square cylinders 47 are hollow cylindrical structures in the shape of a cuboid. Spacing square cylinder 47 has been seted up near the side of locking square column 22 spacing square hole 48, and spacing square cylinder 47 is inboard and equipment through-hole 46 all is linked together with spacing square hole 48. Spacing square tube 47 is kept away from the inside wall of locking square column 22 and is fixed with spacing spring 49, and spacing square tube 47 is located self inside position and wears to be equipped with spacing sloping block 50 along self length direction, and the side fixed connection that spacing sloping block 50 and spacing spring 49 are close to each other to this realizes that spacing sloping block 50 slides along spacing square tube 47 length direction and sets up inside spacing square tube 47. The side surfaces of the limit inclined blocks 50 close to the ratchet gear 41 are inclined surfaces, and although the inclination angles of the limit inclined blocks 50 positioned on the front side wall and the rear side wall of the locking square column 22 are different, the limit inclined blocks 50 positioned on the front side wall and the rear side wall of the locking square column 22 are mutually attached to the tooth inclined surfaces of the ratchet gear 41. The spiral cylinder 27 can only rotate towards a single direction through the matching of the limit inclined block 50 and the ratchet wheel 41, and the spiral cylinder 27 is not easy to reverse.
Referring to fig. 2 and 3, a group of rotary rings 51 is sleeved on the peripheral sides of the four steel wire ropes 20, three groups of rotary rings 51 are arranged along the length direction of the steel wire ropes 20, and the three groups of rotary rings 51 are all installed between the locking square column 22 and the support square 11. A cross frame 52 is installed on the inner side of the rotary ring 51, the cross frame 52 is a rod-shaped structure formed by fixedly connecting two straight rods perpendicular to each other, and four end portions of the cross frame 52 are all fixedly installed on the inner circumferential surface of the rotary ring 51, so that the cross frame 52 divides the inner side of the rotary ring 51 into four fan-shaped areas 53. The four groups of wire ropes 20 correspond to the four sector areas 53 one by one, and the wire ropes 20 pass through the corresponding sector areas 53 and penetrate out of the rotating ring 51. At the same time, the spiral cylinder 27 in the locking square column 22 is rotated by itself, so that the wire rope 20 installed in the area of the rotating ring 51 is twisted in a twisted shape. The straight board 54 of ring is all installed to the rotatory ring 51 left and right sides, and two straight boards 54 of ring all weld in the rotatory ring 51 outer peripheral face, and straight board 54 of ring has seted up three groups along self length direction and has run through four 55 of bolt through-holes of two upper and lower sides, and straight board 54 of ring is worn to be equipped with four 56 of expansion bolts through four 55 of bolt through-holes, and straight board 54 of ring is fixed in the frame bottom of the beam face through four 56 of expansion bolts.
The embodiment of the application discloses a frame beam prestress reinforcing device and a construction method thereof, and the implementation principle is as follows: firstly, fixing a support straight plate 12 on the bottom surface of a built frame beam by a worker through an expansion bolt I14, namely fixing a support square block 11 on the bottom surface of the frame beam; the worker fixes the locking straight plate 23 on the bottom surface of the built frame beam through the second expansion bolt 25, namely the locking square column 22 is fixed on the bottom surface of the frame beam. Then, the four steel wire pulling ropes 20 pass through the supporting block 11 through the supporting through holes 15, and meanwhile, the steel wire pulling ropes 20 also pass through the horn rings 16 in the supporting block 11. The end of the steel wire rope 20 passes through the rotary ring 51 without the ring straight plate 54, the end of the steel wire rope 20 passes through the spiral cylinder 27 through the cylindrical through hole 29, at this time, the worker welds the anti-dropping cylinder 30 at the tail end of the steel wire rope 20, and welds the anti-dropping cylinder 30 at the side of the spiral cylinder 27 far away from the support square 11. Spiral cylinder 27 is worn to locate inside locking square column 22 through the mode of revolving soon, and simultaneously spiral cylinder 27's spacing lug 45 passes through spacing recess 44 joint inside ratchet gear 41, and the staff will stretch straight-bar 37 and weld in spiral cylinder 27 and keep away from the side of support square 11, and the one end that spiral cylinder 27 was kept away from to tensile straight-bar 37 passes lock solid straight plate 32 through lock solid through-hole 36 and rotates through lock solid ring 38 and install inside lock solid straight plate 32.
The worker is electrified to start the hydraulic cylinder 39, the hydraulic cylinder 39 enables the locking straight plate 32 and the square column straight plate 31 to be farther and farther, meanwhile, the spiral cylinder 27 and the supporting square block 11 are farther and farther, the spiral cylinder 27 rotates inside the locking square column 22 along the rotation axis direction of the spiral cylinder 27, and the steel wire ropes 20 installed in the area of the rotating circular ring 51 are screwed to be in a twist shape until the four steel wire ropes 20 are in a tightening state. When the four steel wire pull ropes 20 are completely tightened, a worker fixes the locking straight plate 32 on the bottom surface of the frame beam through the expansion bolts three 34. Meanwhile, the worker welds the circular straight plate 54 to the circumferential surface of the rotary circular ring 51, and then fixedly installs the circular straight plate 54 to the bottom surface of the frame girder through the expansion bolts 56, at this time, the rotary circular ring 51 is fixedly installed to the bottom surface of the frame girder.
A construction method of a frame beam prestress reinforcing device comprises the following steps:
s1, constructing a frame beam by workers;
s2, fixing the support square block 11 on the bottom surface of the frame beam through the expansion bolt I14, and fixing the locking square column 22 on the bottom surface of the frame beam through the expansion bolt II 25;
s3, the four steel wire pull ropes 20 penetrate through the supporting square block 11, meanwhile, the steel wire pull ropes 20 also penetrate through the horn circular ring 16 in the supporting square block 11, then the end parts of the steel wire pull ropes 20 penetrate through the rotary circular ring 51 without the circular ring straight plate 54 welded, and finally the end parts of the steel wire pull ropes 20 penetrate through the spiral cylinder 27;
s4, welding the anti-drop cylinder 30 at the tail end of the steel wire pull rope 20, and then welding the anti-drop cylinder 30 at the side of the spiral cylinder 27 far away from the support block 11;
s5, the spiral cylinder 27 penetrates through the locking square column 22 in a screwing mode, and meanwhile, the limiting lug 45 of the spiral cylinder 27 is clamped in the ratchet gear 41 through the limiting groove 44;
s6, welding the stretching straight rod 37 to the side face, far away from the support block 11, of the spiral cylinder 27, penetrating one end, far away from the spiral cylinder 27, of the stretching straight rod 37 through the locking straight plate 32, and rotatably installing one end, far away from the spiral cylinder 27, of the stretching straight rod 37 on the locking straight plate 32 through the locking circular ring 38;
s7, starting the hydraulic cylinder 39, wherein the hydraulic cylinder 39 enables the locking straight plate 32 and the square column straight plate 31 to be farther and farther, meanwhile, the spiral cylinder 27 and the support square 11 to be farther and farther, the spiral cylinder 27 rotates inside the locking square column 22 along the rotation axis direction of the spiral cylinder 27, and the steel wire rope 20 installed in the area of the rotating circular ring 51 is screwed into a twist shape;
and S8, when the four steel wire pull ropes 20 are completely tightened, fixing the locking straight plate 32 on the bottom surface of the frame beam through the third expansion bolt 34, then welding the annular straight plate 54 on the circumferential surface of the rotary annular 51, and finally fixing the rotary annular 51 on the bottom surface of the frame beam through the fourth expansion bolt 56.
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 (9)
1. The utility model provides a frame roof beam prestressing force reinforcing apparatus, supports square (11) including a plurality of groups that are fixed in the frame bottom of the beam face, passes a plurality of steel wire stay cords (20) of supporting square (11) and set up in the frame bottom of the beam face and be used for with a plurality of steel wire stay cords (20) are twisted and are twisted mechanism soon of twist form, its characterized in that: the screwing mechanism comprises a locking square column (22) fixed on the bottom surface of the frame beam and a spiral cylinder (27) arranged on the bottom surface of the frame beam in a sliding mode, the steel wire pull rope (20) is fixed on the side surface of the spiral cylinder (27), the locking square column (22) is provided with a spiral through hole (26) along the length direction of the steel wire pull rope (20), the spiral cylinder (27) is positioned on the outer peripheral surface of the spiral cylinder (27) and is provided with spiral grains (28) in a surrounding mode, and the spiral cylinder (27) is in spiral fit with the locking square column (22); and a power mechanism for driving the spiral cylinder (27) to rotate in the locking square column (22) is arranged on the bottom surface of the frame beam.
2. The prestressed reinforcement device for a frame girder according to claim 1, wherein: a locking mechanism for locking the spiral cylinder (27) is arranged in the locking square column (22), the locking mechanism comprises a ratchet gear (41) rotatably arranged in the locking square column (22), a limiting square tube (47) fixed on the outer side wall of the locking square column (22) and a limiting inclined block (50) penetrating through the limiting square tube (47), the side surface of the limit inclined block (50) close to the ratchet wheel gear (41) is an inclined surface and is attached to the inclined surface of the teeth of the ratchet wheel gear (41), the ratchet gear (41) is provided with a gear through hole (43), the spiral cylinder (27) passes through the ratchet gear (41) through the gear through hole (43), the ratchet gear (41) is provided with a limiting mechanism for enabling the ratchet gear (41) and the spiral cylinder (27) to synchronously rotate through the gear through hole (43).
3. The pre-stressed reinforcement device for a frame beam as claimed in claim 2, wherein: spiral cylinder (27) are located the position of self outer peripheral face and have seted up spacing recess (44) along self length direction, stop gear includes through gear through-hole (43) are fixed in spacing lug (45) inside ratchet gear (41), spacing lug (45) pass through spacing recess (44) joint in inside spiral cylinder (27).
4. The prestressed reinforcement device for a frame girder according to claim 1, wherein: support square (11) inside being provided with and being used for avoiding as far as possible the barrier mechanism of steel wire stay cord (20) resilience, barrier mechanism including fixed mounting in support square (11) inside loudspeaker ring (16), loudspeaker ring (16) cover is located steel wire stay cord (20) week side, loudspeaker ring (16) inner peripheral surface orientation is close to locking square column (22) direction slope.
5. The prestressed reinforcement device for a frame girder according to claim 4, wherein: loudspeaker ring (16) are close to the outer peripheral face of locking square column (22) with the axle center of loudspeaker ring (16) encircles for the axial has seted up a plurality of groups triangle-shaped tooth's socket (19), triangle-shaped tooth's socket (19) are transversal triangle-shaped's logical groove structure of personally submitting, triangle-shaped tooth's socket (19) run through loudspeaker ring (16) are close to the tip of locking square column (22).
6. The prestressed reinforcement device for a frame girder according to claim 1, wherein: the bottom surface of the frame beam is provided with a reinforcing mechanism for reinforcing and screwing a plurality of groups of twisted steel wire pull ropes (20), the reinforcing mechanism comprises a rotary circular ring (51) arranged on the bottom surface of the frame beam and a cross frame (52) fixedly arranged on the inner circumferential surface of the rotary circular ring (51), a group of rotary circular rings (51) are jointly sleeved by a plurality of steel wire pull ropes (20), the rotary circular rings (51) are arranged in a plurality of groups along the length direction of the steel wire pull rope (20), the rotary circular rings (51) in a plurality of groups are all arranged between the locking square column (22) and the supporting square block (11), the cross frame (52) divides the inner side of the rotary circular ring (51) into a plurality of fan-shaped areas (53), and the plurality of groups of steel wire pull ropes (20) penetrate out of the rotary circular ring (51) through the fan-shaped areas (53).
7. The prestressed reinforcement device for a frame girder according to claim 6, wherein: the rotary ring (51) is provided in a region where the twisted wire rope (20) is twisted in a twisted shape.
8. The prestressed reinforcement device for a frame girder according to claim 1, wherein: the power mechanism comprises a locking straight plate (32) arranged on the bottom surface of the frame beam, a hydraulic cylinder (39) fixedly connected between the locking straight plate (32) and the locking square column (22), and a stretching straight rod (37) fixed on the side surface, close to the locking straight plate (32), of the spiral cylinder (27), and the stretching straight rod (37) is rotatably arranged on the side surface of the locking straight plate (32).
9. A construction method using a prestressing reinforcement device for a frame girder according to claim 1, wherein: the method comprises the following steps:
s1: a worker builds a frame beam;
s2: fixedly mounting the supporting square block (11) on the bottom surface of the frame beam, and fixedly mounting the locking square column (22) on the bottom surface of the frame beam;
s3: the four steel wire pull ropes (20) penetrate through the supporting square blocks (11), the steel wire pull ropes (20) also penetrate through the horn circular rings (16) in the supporting square blocks (11), the end parts of the steel wire pull ropes (20) penetrate through the rotating circular rings (51), and the end parts of the steel wire pull ropes (20) penetrate through the spiral cylinders (27);
s4: the spiral cylinder (27) penetrates through the locking square column (22) in a screwing mode, and meanwhile, a limiting lug (45) of the spiral cylinder (27) is clamped in the ratchet gear (41) through a limiting groove (44);
s5: the worker welds the stretching straight rod (37) to the side face, far away from the support block (11), of the spiral cylinder (27), one end, far away from the spiral cylinder (27), of the stretching straight rod (37) penetrates through the locking straight plate (32), and one end, far away from the spiral cylinder (27), of the stretching straight rod (37) is rotatably installed on the locking straight plate (32);
s6: starting a hydraulic cylinder (39), wherein the hydraulic cylinder (39) enables the locking straight plate (32) and the locking square column (22) to be farther and farther, meanwhile, the spiral cylinder (27) and the supporting square block (11) are farther and farther, the spiral cylinder (27) rotates inside the locking square column (22) along the direction of the rotation axis of the spiral cylinder, and the steel wire pull rope (20) arranged in the area of the rotating circular ring (51) is screwed to be in a twist shape;
s7: when the four steel wire pull ropes (20) are completely tightened, the locking straight plate (32) is fixed on the bottom surface of the frame beam, then the circular ring straight plate (54) is welded on the circumferential surface of the rotary circular ring (51), and finally the rotary circular ring (51) is fixed on the bottom surface of the frame beam.
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| CN202210384143.1A CN114575619B (en) | 2022-04-13 | 2022-04-13 | Frame beam prestress reinforcing device and construction method thereof |
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| CN202210384143.1A CN114575619B (en) | 2022-04-13 | 2022-04-13 | Frame beam prestress reinforcing device and construction method thereof |
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Cited By (1)
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| CN116084275A (en) * | 2023-01-17 | 2023-05-09 | 常熟路桥工程有限公司 | Bridge maintenance equipment and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN114575619B (en) | 2023-08-29 |
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