CN114575619B - 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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- CN114575619B CN114575619B CN202210384143.1A CN202210384143A CN114575619B CN 114575619 B CN114575619 B CN 114575619B CN 202210384143 A CN202210384143 A CN 202210384143A CN 114575619 B CN114575619 B CN 114575619B
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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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Abstract
The utility model relates to the technical field of frame beams and discloses a frame beam prestress reinforcement device and a construction method thereof, wherein the frame beam prestress reinforcement device comprises a plurality of groups of support blocks fixed on the bottom surface of a frame beam, a plurality of steel wire pull ropes penetrating through the support blocks and a screwing mechanism arranged on the bottom surface of the frame beam and used for screwing the steel wire pull ropes into a twist shape, the screwing mechanism comprises a locking square column fixed on the bottom surface of the frame beam and a spiral column arranged on the bottom surface of the frame beam in a sliding manner, the locking square column is provided with a spiral through hole, spiral lines are arranged on the peripheral surface of the spiral column in a surrounding manner, and the spiral column is in spiral fit with the locking square column; the bottom surface of the frame beam is provided with a power mechanism for driving the spiral cylinder to rotate in the locking square column. The utility model has the effect of improving the effect that the gravity and the tension of the steel strand are not tensioned gradually, and the reinforcement effect can not be performed gradually.
Description
Technical Field
The utility model 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 early occurrence of cracks of the reinforced concrete structure, fully utilize high-strength steel bars and high-strength concrete, and try to ensure that the prestress is generated to reduce or offset the concrete tension caused by the load before the structure is loaded, reduce the floor load and ensure that the mid-span bending bearing capacity of the plate is sufficient. The common reinforcement methods in the prior art are a carbon fiber pasting reinforcement method, a steel plate pasting reinforcement method, a section enlarging method and the like.
The Chinese patent publication No. CN209145324U discloses a large-span cast-in-situ slab with an external prestress reinforcement structure, which comprises a cast-in-situ slab body and a prestress reinforcement mechanism arranged on the surface of the cast-in-situ slab body, wherein the prestress reinforcement mechanism comprises a transverse steel strand, a longitudinal steel strand and a main steering piece, the transverse steel strand is anchored between two longitudinal frame beams of the cast-in-situ slab body, the longitudinal steel strand is anchored between two transverse frame beams of the cast-in-situ slab body, and the middle parts of the transverse steel strand and the longitudinal steel strand are both steered through the main steering piece.
With respect to the related art, the inventor considers that the large-span cast-in-situ slab is directly anchored between two longitudinal frame beams of the cast-in-situ slab body or between two transverse frame beams of the cast-in-situ slab body whether the large-span cast-in-situ slab is a transverse steel strand or a longitudinal steel strand. In the long-time use process of the steel strand, the steel strand is gradually not tensioned due to the gravity and the tension of the steel strand, and the steel strand cannot be reinforced gradually.
Disclosure of Invention
In order to solve the problem that the gravity and the tension of the steel strand are not tensioned gradually, and the reinforcement effect cannot be performed gradually, the utility model provides a frame beam prestress reinforcement device and a construction method thereof.
In a first aspect, the present utility model provides a prestress reinforcement device for a frame beam, which adopts the following technical scheme:
the prestress reinforcement device for the frame beam comprises a plurality of groups of support blocks fixed on the bottom surface of the frame beam, a plurality of steel wire pull ropes penetrating through the support blocks and a screwing mechanism arranged on the bottom surface of the frame beam and used for screwing the steel wire pull ropes into a twist shape, wherein the screwing mechanism comprises a locking square column fixed on the bottom surface of the frame beam and a spiral cylinder slidingly arranged on the bottom surface of the frame beam, the steel wire pull ropes are fixed on the side surface of the spiral cylinder, the locking square column is provided with a spiral through hole along the length direction of the steel wire pull ropes, the spiral cylinder is arranged on the peripheral surface of the spiral cylinder in a surrounding manner, and the spiral cylinder is in spiral fit with the locking square column; the bottom surface of the frame beam is provided with a power mechanism for driving the spiral cylinder to rotate in the locking square column.
Through adopting above-mentioned technical scheme, through power unit drive spiral cylinder rotation in locking square column inside, a plurality of steel wire stay cords are twisted soon simultaneously and are the fluted shape, make the steel wire stay cord shorten the rope length through this mode, 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 no longer tighten gradually, can't carry out the problem of reinforcement effect gradually this moment.
Optionally, locking square column inside is provided with the locking mechanism who is used for locking spiral cylinder, locking mechanism including rotate install in locking square column inside ratchet, be fixed in locking square column lateral wall's spacing square tube and wear to locate spacing square tube inside spacing sloping block, spacing sloping block be close to ratchet's side be the inclined plane and with ratchet's tooth's inclined plane is laminated mutually, the gear through-hole has been seted up to ratchet, spiral cylinder passes through the gear through-hole ratchet, ratchet passes through the gear through-hole is provided with and is used for making ratchet with spiral cylinder synchronous pivoted stop gear.
Through adopting above-mentioned technical scheme, when power unit drive spiral cylinder rotated in locking square column inside, ratchet gear passes through stop gear and rotates along with spiral cylinder synchronization. The side surface of the limiting inclined block is matched with the inclined surface of the tooth of the ratchet gear, so that the ratchet gear can only rotate in one direction. When the power mechanism fails, the locking mechanism can timely react, so that the spiral cylinder is not easy to reverse.
Optionally, the position that the spiral cylinder is located self outer peripheral face has seted up spacing recess along self length direction, and stop gear includes through the gear through-hole is fixed in the inside spacing lug of ratchet, spacing lug pass through spacing recess joint in inside the spiral cylinder.
Through adopting above-mentioned technical scheme, prescribing a limit to through stop gear between spiral cylinder and the ratchet, the ratchet can rotate along with the rotation of spiral cylinder simultaneously, and the spiral cylinder can slide the setting along self length direction for the ratchet to this realizes that ratchet and spiral cylinder synchronous rotation simultaneously, and the ratchet does not influence the removal of spiral cylinder.
Optionally, the inside blocking mechanism that is used for avoiding the resilience of wire stay cord as far as possible that is provided with of support square, blocking mechanism including fixed mounting in the inside loudspeaker ring of support square, loudspeaker ring cover is located wire stay cord week side, loudspeaker ring inner peripheral face 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 wire stay cord appeared and moved towards the opposite direction, and the tip that loudspeaker ring was close to locking square column was because the opening is small this moment, leads to loudspeaker ring to restrict wire stay cord and moves towards the opposite direction, and loudspeaker ring makes wire stay cord unilateral removal easily, and is difficult to carry out the reverse direction and remove.
Optionally, the outer peripheral surface of the horn ring, which is close to the locking square column, takes the axis of the horn ring as an axial ring to form a plurality of groups of triangular tooth grooves, the triangular tooth grooves are through groove structures with triangular cross sections, and the triangular tooth grooves penetrate through the horn ring and are close to the end parts of the locking square column.
By adopting the technical scheme, the triangular tooth grooves are formed in the outer circumferential surface of the horn ring, so that the tooth structure similar to the sharp teeth is formed in the circumferential surface of the horn ring. When the steel wire stay cord moves towards the opposite direction, the end part of the tooth structure of the horn ring can be abutted against the periphery of the steel wire stay cord, so that the horn ring can be limited 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 strengthening to twist soon and is a plurality of groups of wire stay cord's reinforcing mechanism, reinforcing mechanism including install in the rotatory ring of frame roof beam bottom surface and fixed mounting in rotatory ring inner peripheral face's cross frame, a plurality of wire stay cords overlap jointly establishes a set of rotatory ring, rotatory ring is followed wire stay cord length direction is provided with a plurality of groups, a plurality of groups rotatory ring all install in locking square post with support between the square, cross frame will rotatory ring inboard is separated into a plurality of fan-shaped region, a plurality of group the 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 stay ropes, the rotary ring is rotatably arranged on the bottom surface of the frame beam until a plurality of steel wire stay ropes are completely tightened. When a plurality of steel wire stay ropes are tightened, a worker fixedly installs 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 rotary ring is arranged in a region of the steel wire stay cord which is twisted into a twist shape.
Through adopting above-mentioned technical scheme, set up rotatory ring in the region of twisting the steel wire stay cord that is the spiral form, the 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 be difficult for cross frame surface to take place to slide.
Optionally, the power unit includes the lock solid board of installing in the frame roof beam bottom surface, fixed connection in lock solid board with hydraulic cylinder between the lock square column and be fixed in the spiral cylinder is close to lock solid board's side tensile straight-bar, tensile straight-bar rotation install in lock solid board side.
Through adopting above-mentioned technical scheme, the staff circular telegram starts the pneumatic cylinder, and the pneumatic cylinder makes between locking straight board and the locking square column more and more far away, simultaneously between spiral cylinder and the support square, and spiral cylinder rotates in locking square column inside along self axis of rotation direction for install the wire stay cord in the region of rotatory ring by the spiral form of screwing, until four wire stay cords tend to the tight state of stretching.
In a second aspect, the construction method of the frame beam prestress reinforcement device provided by the utility model adopts the following technical scheme:
the construction method of the frame beam prestress reinforcing device comprises the following steps:
s1: the staff builds the frame beam; s2: fixing the support square on the bottom surface of the frame beam, and fixing the locking square column on the bottom surface of the frame beam; s3: four steel wire pull ropes pass through the supporting square, the steel wire pull ropes also pass through a horn circular ring in the supporting square, the end parts of the steel wire pull ropes pass through the rotating circular ring, and the end parts of the steel wire pull ropes pass through the spiral cylinder; s4: the spiral cylinder penetrates through the locking square column in a screwing mode, and meanwhile, the limit protruding block of the spiral cylinder is clamped in the ratchet gear through the limit groove; s5: the staff welds the stretching straight rod on the side surface of the spiral cylinder far away from the supporting square, 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 arranged 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 further and further away, and meanwhile, the spiral cylinder and the supporting square are further and further away, and the spiral cylinder rotates in the locking square column along the direction of the rotation axis of the spiral cylinder, so that a steel wire stay rope arranged in the region of the rotating circular ring is screwed into a twist shape; s7: when four steel wire stay 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 wire stay cord tighten through the mode of screwing, change traditional mode and directly tighten the wire stay cord then be fixed in the mode of mounting to this avoids the wire stay cord as far as possible because dead weight cause the unable tight problem of wire stay cord. Meanwhile, the prestress of the frame beam can be reinforced to the greatest extent by arranging a plurality of groups of reinforcing mechanisms, limiting mechanisms, power mechanisms and the like.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the spiral cylinder is driven by the power mechanism to rotate inside the locking square column, and meanwhile, the plurality of steel wire pull ropes are twisted into a twist shape, so that the length of the steel wire pull ropes is shortened in the mode, namely, the steel wire pull ropes are always kept in a tight state, the problem that the gravity and the tension of the steel wire are not tight gradually, and the reinforcement effect cannot be achieved gradually is solved. The method comprises the steps of carrying out a first treatment on the surface of the
2. The power mechanism drives the spiral cylinder to rotate in the locking square column, and the ratchet gear synchronously rotates along with the spiral cylinder through the limiting mechanism. The side surface of the limiting inclined block is matched with the inclined surface of the tooth of the ratchet gear, so that the ratchet gear can only rotate in one direction. When the power mechanism fails, the locking mechanism can timely react, so that the spiral cylinder is not easy to reverse;
3. the triangular tooth grooves are formed in the outer peripheral surface of the horn circular ring, so that the tooth structure similar to the sharp teeth is formed on the peripheral surface of the horn circular ring. When the steel wire stay cord moves towards the opposite direction, the end part of the tooth structure of the horn ring can be abutted against the periphery of the steel wire stay cord, so that the horn ring can be limited to move towards the opposite direction without considering the size of the horn ring.
Drawings
Fig. 1 is a schematic view of a structure of an embodiment of the present utility model 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 an enlarged partial schematic view of fig. 2.
Fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Fig. 5 is a schematic structural view of a horn ring according to an embodiment of the present utility model.
Fig. 6 is an enlarged schematic view of a portion C in fig. 3.
Reference numerals illustrate: 11. a support block; 12. supporting the straight plate; 13. a first bolt through hole; 14. an expansion bolt I; 15. a support through hole; 16. a horn ring; 17. a first diameter; 18. a second diameter; 19. triangular tooth slots; 20. a steel wire rope; 21. a locking device; 22. locking the square column; 23. locking the straight plate; 24. a second bolt through hole; 25. expansion bolts II; 26. a spiral through hole; 27. a spiral cylinder; 28. spiral lines; 29. a cylindrical through hole; 30. an anti-drop cylinder; 31. square column straight plate; 32. locking the straight plate; 33. a bolt through hole III; 34. expansion bolts III; 35. square column through hole; 36. locking the through hole; 37. stretching the straight rod; 38. locking the ring; 39. a hydraulic cylinder; 40. a locking groove; 41. a ratchet gear; 43. a gear through hole; 44. a limit groove; 45. a limit bump; 46. assembling the through hole; 47. a limit square cylinder; 48. limiting square holes; 49. a limit spring; 50. limiting oblique blocks; 51. rotating the circular ring; 52. a cross frame; 53. a sector area; 54. a circular ring straight plate; 55. a bolt through hole IV; 56. expansion bolts IV.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-6.
The embodiment of the utility model discloses a frame beam prestress reinforcing device and a construction method thereof. Referring to fig. 1 to 3, the frame beam prestress reinforcement device and the construction method thereof include two sets of support blocks 11 installed on the bottom surface of the frame beam along the length direction of the frame beam, and the two sets of support blocks 11 are oppositely arranged, and the support blocks 11 are in a block structure in a rectangular parallelepiped shape. The support square 11 has all welded support straight board 12 in two sides around, and support straight board 12 has seted up two sets of bolt through-holes 13 that run through support straight board 12 two sides about along frame beam length direction, and every set of bolt through-hole 13 all includes three bolt through-hole 13 that set up in support straight board 12 bottom surface along frame beam width direction. The support straight plate 12 is penetrated with an expansion bolt I14 through a bolt through hole I13, so that the support straight plate 12 is fixed on the bottom surface of the frame beam through the expansion bolt I14.
Referring to fig. 4 and 5, the side walls of the two groups of support blocks 11, which are close to each other, are provided with support through holes 15, and the positions of the support through holes 15, which are located at the side surfaces of the support blocks 11 and are close to the four top corners, are provided with one support through hole. Each supporting square 11 is fixed with a horn ring 16 through a supporting through hole 15, and the horn ring 16 is of a ring-shaped structure with a horn shape. The diameters of the openings of the horn rings 16 of the two groups of support blocks 11, which are close to each other, are respectively a first diameter 17, and the diameters of the openings of the horn rings 16 of the two groups of support blocks 11, which are far away from each other, are respectively a second diameter 18, and the size of the first diameter 17 is larger than that of the second diameter 18. Triangular tooth grooves 19 are formed in the ends, away from each other, of the horn circular rings 16 of the two groups of support blocks 11, the triangular tooth grooves 19 are located on the outer circumferential surface of the horn circular rings 16, a circle of triangular tooth grooves 19 are formed by taking the axis of the horn circular rings 16 as an axial ring, and the triangular tooth grooves 19 are of a through groove structure with a triangular cross section. Four steel wire pull ropes 20 are arranged between the side surfaces of the two groups of support blocks 11, two ends of each steel wire pull rope 20 are in one-to-one correspondence with the corresponding horn circular rings 16 of the two groups of support blocks 11, the end parts of the steel wire pull ropes 20 penetrate through the inner sides of the corresponding horn circular rings 16, and due to the effect of the horn circular rings 16, the steel wire pull ropes 20 are positioned inside the support blocks 11 and can only slide towards one direction, and the steel wire pull ropes 20 penetrate out of the support blocks 11 through the support through holes 15.
Referring to fig. 3 and 6, two sets of locking devices 21 for locking the wire rope 20 are provided on the sides of the two sets of support blocks 11 facing away from each other, and the two sets of locking devices 21 are symmetrically provided. The locking device 21 comprises a locking square column 22 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 fixed with a locking straight plate 23 along the length direction of the locking square column 22 at the positions of the front side and the rear side of the locking square column, six groups of bolt through holes 24 penetrating through the upper side and the lower side of the locking square column are formed in the length direction of the locking straight plate 23, expansion bolts II 25 penetrate through the bolt through holes II 24, and therefore the locking straight plate 23 is fixed to the bottom surface of the frame beam through the expansion bolts II 25. The locking square column 22 is provided with a spiral through hole 26 penetrating through the left side surface and the right side surface of the locking square column 22, the locking square column 22 is provided with a spiral cylinder 27 in a penetrating mode through the spiral through hole 26, the position of the spiral cylinder 27 on the outer peripheral surface of the locking square column is provided with a spiral grain 28 in a surrounding mode by taking the axis of the locking square column as the axial direction, and the spiral grain 28 of the spiral cylinder 27 can be matched with the spiral through hole 26 of the locking square column 22, so that the spiral cylinder 27 is in spiral connection inside the locking square column 22. Cylindrical through holes 29 are formed in the positions, close to the four top angles of the locking square column 22, of the side face, close to the supporting square block 11, of the spiral cylinder 27, the end portion, close to the spiral cylinder 27, of the steel wire pulling rope 20 penetrates out of the spiral cylinder 27 through the cylindrical through holes 29 and is welded with an anti-falling cylinder 30, and the anti-falling cylinder 30 is welded to the side face, far away from the supporting square block 11, of the 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 far from the supporting square block 11, a locking straight plate 32 is installed on the side of the square column straight plate 31 far from the locking square column 22, and the square column straight plate 31 is opposite to the locking straight plate 32. 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 are arranged in the locking straight plate 32 in a penetrating mode 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 square column through holes 35 penetrating through the left and right sides of the square column straight plate, the square column through holes 35 are communicated with the spiral through holes 26, and the locking straight plate 32 is provided with locking through holes 36 penetrating through the left and right sides of the square column straight plate. The side surface of the spiral cylinder 27 far away from the supporting square block 11 is fixedly connected with a stretching straight rod 37, and the end part of the stretching straight rod 37 far away from the supporting square block 11 penetrates out of the square column straight plate 31 through the square column through hole 35 and penetrates out of the locking straight plate 32 through the locking through hole 36. The left side surface and the right side surface of the locking straight plate 32 are abutted against locking circular rings 38, and the locking circular rings 38 are coaxially fixed on the peripheral side of the stretching straight rod 37, so that the stretching straight rod 37 is rotatably arranged on the side wall of the locking straight plate 32 through the locking circular rings 38. The side wall of the square column straight plate 31, which is close to the locking straight plate 32, is fixedly provided with a hydraulic cylinder 39, a group of hydraulic cylinders 39 are arranged at the front side and the rear side of the stretching straight rod 37, and the piston rod of the hydraulic cylinder 39 is fixed on the side surface of the locking straight plate 32, which is close to the square column straight plate 31.
Referring to fig. 3 and 6, the inner circumferential surface of the screw through hole 26 is provided 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 the left side surface and the right side surface of the ratchet gear 41 are provided with plane thrust bearings, so that the ratchet gear 41 is rotatably arranged inside the locking square column 22 through the plane thrust bearings. The ratchet gear 41 is axially provided with a gear through hole 43 along its own rotation axis, and the spiral cylinder 27 passes through the ratchet gear 41 through the gear through hole 43. The position of the spiral cylinder 27 on the outer peripheral surface of the spiral cylinder 27 is provided with a limit groove 44 along the length direction of the spiral cylinder, the ratchet gear 41 is fixed with a limit lug 45 through a gear through hole 43, and the limit lug 45 is clamped inside the spiral cylinder 27 through the limit groove 44, so that the spiral cylinder 27 can slide along the rotation axis direction of the ratchet gear 41, and the spiral cylinder 27 can drive the ratchet gear 41 to rotate.
Referring to fig. 3 and 6, the front and rear side walls of the locking square column 22 are provided with assembly through holes 46, and the front and rear side walls of the locking square column 22 are fixedly provided with a limit square cylinder 47, wherein the limit square cylinder 47 is of a rectangular hollow cylindrical structure. The side of the limit square cylinder 47, which is close to the locking square column 22, is provided with a limit square hole 48, and the inner side of the limit square cylinder 47 and the assembly through hole 46 are communicated with the limit square hole 48. The limiting square cylinder 47 is far away from the inner side wall of the locking square column 22 and is fixedly provided with a limiting spring 49, a limiting inclined block 50 penetrates through the position of the limiting square cylinder 47 in the self length direction, and the limiting inclined block 50 is fixedly connected with the side surface of the limiting spring 49, which is close to each other, so that the limiting inclined block 50 is slidably arranged in the limiting square cylinder 47 in the length direction of the limiting square cylinder 47. The side surface of the limiting inclined block 50, which is close to the ratchet gear 41, is inclined, and the limiting inclined blocks 50 positioned on the front side wall and the rear side wall of the locking square column 22 are mutually attached to tooth inclined surfaces of the ratchet gear 41 although the inclination angles of the limiting inclined blocks 50 positioned on the front side wall and the rear side wall of the locking square column 22 are different. By the cooperation of the limiting inclined block 50 and the ratchet gear 41, the spiral cylinder 27 can only rotate in one direction, and the spiral cylinder 27 is not easy to reverse.
Referring to fig. 2 and 3, a group of rotating rings 51 are sleeved on the peripheral sides of the four steel wire pull ropes 20, three groups of rotating rings 51 are arranged along the length direction of the steel wire pull ropes 20, and the three groups of rotating rings 51 are arranged between the locking square column 22 and the supporting square block 11. The inner side of the rotary ring 51 is provided with a cross frame 52, the cross frame 52 is of a rod-shaped structure formed by fixedly connecting two mutually perpendicular straight rods, and four end parts of the cross frame 52 are fixedly arranged on the inner circumferential surface of the rotary ring 51, so that the inner side of the rotary ring 51 is divided into four sector areas 53 by the cross frame 52. The four groups of steel wire pull ropes 20 are in one-to-one correspondence with the four sector areas 53, and the steel wire pull ropes 20 penetrate out of the rotary circular ring 51 through the corresponding sector areas 53. 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 region of the rotating ring 51 is twisted into a twist shape. The right and left sides of the rotary circular ring 51 are provided with circular ring straight plates 54, the two circular ring straight plates 54 are welded on the outer circumferential surface of the rotary circular ring 51, three groups of four bolt through holes 55 penetrating through the upper side surface and the lower side surface are formed in the circular ring straight plates 54 along the length direction of the circular ring straight plates, expansion bolts four 56 penetrate through the four bolt through holes 55, and the circular ring straight plates 54 are fixed on the bottom surface of the frame beam through the expansion bolts four 56.
The embodiment of the utility model discloses a frame beam prestress reinforcing device and a construction method thereof, wherein the implementation principle is as follows: firstly, a worker fixes a support straight plate 12 on the bottom surface of a built frame beam through an expansion bolt I14, namely, a support square 11 is fixed on the bottom surface of the frame beam; the staff fixes the locking straight plate 23 on the bottom surface of the built frame beam through the expansion bolt II 25, namely, the locking square column 22 is fixed on the bottom surface of the frame beam. Four wire ropes 20 are then passed through the support block 11 via the support through holes 15, while the wire ropes 20 are also passed through the horn ring 16 inside the support block 11. The end of the wire rope 20 passes through the rotary ring 51 without the ring straight plate 54 welded thereto, the end of the wire rope 20 passes through the spiral cylinder 27 through the cylinder through hole 29, and at this time, the worker welds the drop preventing cylinder 30 to the end of the wire rope 20 and welds the drop preventing cylinder 30 to the side of the spiral cylinder 27 away from the supporting square 11. The spiral cylinder 27 passes through the locking square column 22 through the mode of screwing, and simultaneously the spacing lug 45 of spiral cylinder 27 passes through spacing recess 44 joint in ratchet 41 inside, and the staff welds the tensile straight-bar 37 in the side that the spiral cylinder 27 kept away from support square 11, and the one end that the tensile straight-bar 37 kept away from spiral cylinder 27 passes through locking straight plate 32 through locking through hole 36 and rotates through locking ring 38 and install in locking straight plate 32 inside.
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 further and further away, meanwhile, the spiral cylinder 27 and the supporting square block 11 are further and further away, the spiral cylinder 27 rotates in the locking square column 22 along the direction of the rotation axis, and the steel wire pull ropes 20 installed in the area of the rotary ring 51 are screwed into a twist shape until the four steel wire pull ropes 20 tend to be in a tightening state. When the four wire drawstrings 20 are fully tightened, the worker secures the locking straight plate 32 to the bottom surface of the frame beam via the expansion bolts three 34. Meanwhile, a worker welds the circular ring straight plate 54 on the circumferential surface of the rotary circular ring 51, and then fixedly installs the circular ring straight plate 54 on the bottom surface of the frame beam through the expansion bolt IV 56, and at the moment, the rotary circular ring 51 is fixedly installed on the bottom surface of the frame beam.
The construction method of the frame beam prestress reinforcement device comprises the following steps:
s1, building a frame beam by workers;
s2, fixing the supporting square 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, four steel wire pull ropes 20 penetrate through the supporting square 11, meanwhile, the steel wire pull ropes 20 penetrate through the horn circular rings 16 in the supporting square 11, then the end parts of the steel wire pull ropes 20 penetrate through the rotating circular rings 51 without the circular ring straight plates 54 welded, and finally the end parts of the steel wire pull ropes 20 penetrate through the spiral cylinders 27;
s4, welding the anti-falling cylinder 30 at the tail end of the steel wire stay rope 20, and then welding the anti-falling cylinder 30 at the side surface of the spiral cylinder 27, which is far away from the supporting square 11;
s5, the spiral cylinder 27 penetrates through the locking square column 22 in a screwing mode, and meanwhile, a limit projection 45 of the spiral cylinder 27 is clamped in the ratchet gear 41 through a limit groove 44;
s6, welding a stretching straight rod 37 on the side surface of the spiral cylinder 27, which is far away from the supporting square 11, and enabling one end of the stretching straight rod 37, which is far away from the spiral cylinder 27, to pass through the locking straight plate 32, wherein one end of the stretching straight rod 37, which is far away from the spiral cylinder 27, is rotatably arranged on the locking straight plate 32 through a locking circular ring 38;
s7, starting a 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, and simultaneously enables the spiral cylinder 27 and the supporting square block 11 to be farther and farther, and the spiral cylinder 27 rotates in the locking square column 22 along the direction of the rotation axis of the spiral cylinder 27, so that the steel wire stay rope 20 arranged in the area of the rotary ring 51 is screwed into a twist shape;
s8, when the four steel wire pull ropes 20 are fully tightened, the locking straight plate 32 is fixed on the bottom surface of the frame beam through the expansion bolts III 34, 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 through the expansion bolts IV 56.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The utility model provides a frame roof beam prestressing force reinforcing apparatus, is including being fixed in a plurality of groups support square (11) of frame roof beam bottom surface, pass a plurality of steel wire stay cord (20) of support square (11) and set up in the frame roof beam bottom surface be used for with a plurality of steel wire stay cord (20) are twisted soon and are the mechanism of twisting of the marbled, 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 manner, the steel wire stay cord (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 stay cord (20), the spiral cylinder (27) is arranged on the peripheral surface of the spiral cylinder (27) in a surrounding manner, and the spiral cylinder (27) is in spiral fit with the locking square column (22); the bottom surface of the frame beam is provided with a power mechanism for driving the spiral cylinder (27) to rotate in the locking square column (22); the locking mechanism comprises a ratchet gear (41) rotatably arranged in the locking square column (22), a limit square cylinder (47) fixed on the outer side wall of the locking square column (22) and a limit inclined block (50) penetrating through the limit square cylinder (47), wherein the side surface of the limit inclined block (50) close to the ratchet gear (41) is an inclined surface and is attached to the inclined surface of teeth of the ratchet gear (41), the ratchet gear (41) is provided with a gear through hole (43), the spiral cylinder (27) penetrates through the ratchet gear (41) through the gear through hole (43), and the ratchet gear (41) is provided with a limit mechanism for enabling the ratchet gear (41) to rotate synchronously with the spiral cylinder (27) through the gear through hole (43); the spiral cylinder (27) is located the position of self peripheral face and has 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 (41), spacing lug (45) pass through spacing recess (44) joint in inside spiral cylinder (27).
2. A frame beam prestressing apparatus as claimed in claim 1, wherein: the inside blocking mechanism that is used for avoiding as far as possible of supporting square (11) steel wire stay cord (20) resilience is provided with, blocking mechanism including fixed mounting in inside loudspeaker ring (16) of supporting square (11), loudspeaker ring (16) cover are located steel wire stay cord (20) week side, loudspeaker ring (16) inner peripheral face orientation is close to locking square column (22) direction slope.
3. A frame beam prestressing apparatus as claimed in claim 2, wherein: the outer peripheral surface of the horn circular ring (16) close to the locking square column (22) takes the axis of the horn circular ring (16) as an axial ring to form a plurality of groups of triangular tooth grooves (19), the triangular tooth grooves (19) are through groove structures with triangular cross sections, and the triangular tooth grooves (19) penetrate through the end parts of the horn circular ring (16) close to the locking square column (22).
4. A frame beam prestressing apparatus according to claim 3, wherein: the frame beam bottom surface is provided with the reinforcing mechanism who is used for strengthening to twist a plurality of groups that are the fluted steel wire stay cord (20), reinforcing mechanism including install in rotatory ring (51) and fixed mounting in rotatory ring (51) inner peripheral surface cross frame (52), a plurality of steel wire stay cord (20) overlap jointly and establish a set of rotatory ring (51), rotatory ring (51) are followed steel wire stay cord (20) length direction is provided with a plurality of groups, a plurality of groups rotatory ring (51) all install in locking square post (22) with support between square (11), cross frame (52) will rotatory ring (51) inboard partition becomes a plurality of fan-shaped region (53), a plurality of steel wire stay cord (20) pass through a plurality of fan-shaped region (53) are worn out rotatory ring (51).
5. A frame beam prestressing apparatus as claimed in claim 4, wherein: the rotary ring (51) is arranged in a region of the steel wire stay cord (20) which is twisted into a twist shape.
6. A frame beam prestressing apparatus as claimed in claim 5, 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) fixedly arranged on the side surface of the spiral cylinder (27) close to the locking straight plate (32), wherein the stretching straight rod (37) is rotatably arranged on the side surface of the locking straight plate (32).
7. A method of constructing a frame beam pre-stressing device for operating a frame beam pre-stressing device according to claim 6, comprising the steps of:
s1: the staff builds the 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: four steel wire pull ropes (20) penetrate through the supporting square block (11), the steel wire pull ropes (20) also penetrate through the horn circular ring (16) in the supporting square block (11), the end parts of the steel wire pull ropes (20) penetrate through the rotary circular ring (51), and the end parts of the steel wire pull ropes (20) penetrate through the spiral cylinders (27);
s4: the spiral cylinder (27) is penetrated in the locking square column (22) in a screwing mode, and meanwhile, a limit lug (45) of the spiral cylinder (27) is clamped in the ratchet gear (41) through a limit groove (44);
s5: the staff welds the stretching straight rod (37) on the side surface of the spiral cylinder (27) far away from the supporting square block (11), one end of the stretching straight rod (37) far away from the spiral cylinder (27) penetrates through the locking straight plate (32), and one end of the stretching straight rod (37) far away from the spiral cylinder (27) is rotatably arranged on the locking straight plate (32);
s6: starting a hydraulic cylinder (39), wherein the hydraulic cylinder (39) enables the locking straight plate (32) to be farther and farther from the locking square column (22), meanwhile, the spiral cylinder (27) is farther and farther from the supporting square block (11), the spiral cylinder (27) rotates in the locking square column (22) along the direction of the rotation axis of the spiral cylinder, and the steel wire stay rope (20) arranged in the region of the rotating circular ring (51) is screwed into a twist shape;
s7: when the four steel wire pull ropes (20) are fully tightened, the locking straight plates (32) are fixed on the bottom surface of the frame beam, then the circular ring straight plates (54) are 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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| Application Number | Priority Date | Filing Date | Title |
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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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