CN115217348B - Construction device and method for non-full-height reinforcement pier column by UHPC (ultra high pressure polyethylene) increased section method - Google Patents
Construction device and method for non-full-height reinforcement pier column by UHPC (ultra high pressure polyethylene) increased section method Download PDFInfo
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- CN115217348B CN115217348B CN202210904700.8A CN202210904700A CN115217348B CN 115217348 B CN115217348 B CN 115217348B CN 202210904700 A CN202210904700 A CN 202210904700A CN 115217348 B CN115217348 B CN 115217348B
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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
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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Abstract
The utility model discloses a construction device and a construction method for reinforcing pier columns by adopting a UHPC (ultra high pressure polyethylene) cross section increasing method, wherein a top plate is arranged at the top of a lifting large arm on lifting equipment, a U-shaped seat with an adjustable inclination angle is rotatably arranged at the top end of the top plate, a guide rail frame unit capable of opening and closing is arranged on the U-shaped seat, a sliding seat body is arranged on the guide rail frame unit, an FRP cloth roll is arranged on the sliding seat body, meanwhile, a radially telescopic extrusion unit is arranged at the inner side of the sliding seat body, and the extrusion unit uniformly extrudes FRP cloth on a pier surface; the guide rail frame unit comprises two groups of semicircular guide rail frames, one ends of the same sides of the two groups of semicircular guide rail frames are all hinged to the U-shaped seat, locking pieces capable of being extruded and contracted are symmetrically arranged at two ends of the semicircular guide rail frames, the function of automatically laying FRP cloth on the cylindrical surface of the pier column is met through the structural design, the operation efficiency is improved, the laying sticky effect is good, and the risk of personnel climbing operation is avoided.
Description
Technical Field
The utility model relates to the technical field of reinforced soil pier column construction equipment, in particular to a construction device and a construction method for non-full-height reinforced pier columns by adopting a UHPC (ultra high pressure polyethylene) increased section method.
Background
As is well known, the number of buildings is rapidly increased after the rapid development of the recent 40 years, the proportion of old buildings is continuously increased, and the reinforcement and transformation of the old structure buildings and the gradual starting of the service cycle of the extended structure are carried out in order to prolong and ensure the service life and the use safety of the old buildings. Pier columns are used as main bearing members of vertical loads, and are often important for structural reinforcement, and the bearing capacity and durability of the pier columns are key points of structural safety performance. When the reinforced concrete dosage of the reinforced concrete used for reinforcement is large, the conventional common concrete section increasing method can increase the dead weight of the structure more, so that the bearing capacity of the foundation is insufficient, the UHPC section increasing method is not full-height reinforced pier column, and the reinforced pier column is reinforced by winding FRP cloth manually, so that the reinforcing strength is ensured, and the dead weight is reduced.
As disclosed in chinese patent application No. 202020228422.5, a reinforced concrete pier column which is reinforced by adopting a UHPC enlarged cross section method and not fully reinforced is disclosed, wherein a UHPC reinforcing layer is wrapped outside a pier column body, a reinforcement cage is wrapped outside the pier column body and embedded in the UHPC reinforcing layer, FRP cloth is wrapped on the top of the pier column body and the top of the UHPC reinforcing layer, and the FRP cloth wrapping installation mode is provided.
Based on the problems, the utility model provides a construction device and a construction method for non-full-height reinforcement pier stud by adopting a UHPC (ultra high pressure polyethylene) cross section increasing method.
Disclosure of Invention
Aiming at the problems in the technical background, the utility model aims to provide a construction device and a construction method for non-full-height reinforcement pier stud by adopting a UHPC (ultra high pressure polyethylene) cross section increasing method, and the problems of low construction efficiency and increased cost caused by inconvenient construction of manually winding FRP cloth in high-altitude operation in the prior art are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the construction device for non-full-height reinforcement pier column by adopting UHPC cross section increasing method comprises a lifting large arm arranged on lifting equipment and a top plate arranged at the top of the lifting large arm,
the top end of the top plate is rotatably provided with a U-shaped seat with an adjustable inclination angle, the U-shaped seat is provided with a guide rail frame unit capable of opening and closing, the guide rail frame unit is provided with a sliding seat body, the sliding seat body is provided with an FRP cloth roll, meanwhile, the inner side of the sliding seat body is provided with a radially telescopic extrusion unit, and the extrusion unit is used for extruding FRP cloth of the FRP cloth roll on the outer side surface of a pier column;
the guide rail frame unit comprises two groups of semicircular guide rail frames, one ends of the same sides of the two groups of semicircular guide rail frames are hinged to the U-shaped seat, and locking pieces are symmetrically arranged at two ends of each semicircular guide rail frame;
when the two groups of semicircular guide rail frames are closed, the locking pieces are extruded and contracted, so that the sliding seat body slides on the guide rail frame unit in a closed loop; when the two groups of semicircular guide rail frames are opened, the locking piece prevents the sliding seat body from sliding out of the semicircular guide rail frames;
the two sides of the bottom of the U-shaped seat are symmetrically hinged with second electric telescopic parts which respectively control the opening and closing of the two groups of semicircular guide rail frames.
Therefore, the FRP winding laying work is automatically carried out on the cylindrical surface of the pier stud by the machine, the working efficiency is improved, and the risk brought by manual high-place operation is avoided.
Further, the top plate top with U type seat top outside rotates to be connected, U type seat bottom with go up and down to install the first electric telescopic handle of control U type seat angle of inclination between a side above the big arm, first electric telescopic handle both ends are installed in the U type seat bottom with go up and down to be in a side of big arm upper portion respectively in the rotation.
And the fine adjustment of the vertical angle of the bottom of the U-shaped seat is completed through the first electric telescopic piece, and the fine adjustment is used for controlling the parallelism between the inner side surface of the guide rail frame unit and the cylindrical surface of the pier column.
Further, semicircular guide rail frame includes two sets of semicircular rail frames, U type frame and two sets of arc tooth, two sets of parallel distribution about the rail frame, two sets of radial outside of rail frame open end passes through the U type frame is connected, two sets of the radial outside of rail frame other end is connected with the connecting piece respectively, two sets of semicircular guide rail frame includes four the connecting piece rotates installs on the first fixed column of U type seat open side installation, upper and lower the rail frame middle part is equipped with the semicircular rail groove in opposite directions of opening, upper and lower the rail frame medial surface middle part is through being equipped with the arc groove and installs the arc tooth.
Further, when the two groups of semicircular guide rail frames are closed, the arc-shaped teeth on the upper and lower groups of corresponding guide rail frames are combined to form an internal gear.
By forming the closed internal gear, the driving mechanism arranged on the sliding seat body can conveniently walk, and the closed loop stable walking is realized.
Further, the upper and lower sliding mounting has between the rail the sliding seat body, the sliding seat body includes two arc sliding seats of transversal personally submitting the J type, connects spliced pole and actuating mechanism of two sets of arc sliding seats, is equipped with the arc draw-in groove on the arc sliding seat, have arc short slab and arc long slab on the arc sliding seat of arc draw-in groove both sides, the arc short slab inserts in the rail inslot, rotate on the spliced pole and install FRP yardage roll, install on the arc long slab actuating mechanism.
The arc sliding seat is controlled by the driving mechanism to slide along the rail frame, so that the function of stable running is realized, the extrusion unit on the inner side is matched to lay and pull the FRP cloth roll, the FRP cloth is released in the running process of the sliding seat body, and the extrusion unit is used for extrusion winding and laying.
Still further, actuating mechanism includes gear and servo motor, have the gear groove that runs through both sides face on the arc longeron, install in the gear groove the gear, the gear with arc tooth meshing is installed, install the arc longeron outside end servo motor, servo motor's output runs through extremely in the gear groove and connects the gear.
Still further, upper and lower radial telescopic extrusion unit is installed to arc longeron medial surface symmetry, extrusion unit includes two sets of T type pieces, two first springs, recipient, two sets of T type piece symmetry is installed upper and lower on the medial surface of arc sliding seat, two sets of simultaneously T type piece opposite facing symmetry is equipped with first sliding tray, recipient both ends symmetry is equipped with the connecting axle, the epaxial slider that rotates of installing, slider slidable mounting is in the first sliding tray, simultaneously the slider is along the radial lateral surface of rail frame with one end medial surface of first sliding tray passes through first spring coupling.
Furthermore, vertical plates are symmetrically arranged between the two groups of T-shaped blocks at the outer side of the extrusion cylinder, and FRP cloth released by the FRP cloth roll slides to the cylinder wall of the extrusion cylinder through the two groups of vertical plates.
Further, the locking pieces are symmetrically arranged at two ends of the rail frame above the rail frame, each locking piece comprises a second fixed column, a second spring, a telescopic button, a clamping piece and a pin, the two ends of the rail frame above the locking pieces are concavely provided with second sliding grooves along the tangential direction, the inner sides of the second sliding grooves are communicated with the rail grooves through third sliding grooves, the second fixed columns are arranged in the second sliding grooves, the telescopic buttons are slidably arranged on the second fixed columns, meanwhile, the second springs are arranged on the second fixed columns on the inner sides of the telescopic buttons, the bottoms of the inner sides of the telescopic buttons are hinged with the clamping pieces, limiting sliding grooves are formed in the clamping pieces, the pins penetrating through the limiting sliding grooves are arranged in the third sliding grooves, and when the two groups of semicircular rail frames are closed, the telescopic buttons shrink and drive the clamping pieces to shrink into the third sliding grooves; when the two groups of semicircular guide rail frames are opened, the telescopic buttons extend out and push the clamping pieces to extend into the rail grooves.
In order to solve the problems, the working method of the construction device for non-full-height reinforcement pier stud by adopting the UHPC increasing cross section method is characterized by comprising the following steps:
s1, lifting reinforcing soil pier column construction equipment to the height position of the pier column to be wound with FRP cloth by controlling a lifting large arm of lifting equipment, and opening a guide rail frame unit by controlling a first electric telescopic piece to stretch and push a U-shaped seat to be vertical and controlling a second electric telescopic piece to shrink;
s2, horizontally clamping the opened guide rail frame unit on the pier column by controlling the lifting large arm of the lifting equipment to move and stretch and controlling the first electric telescopic piece to vertically adjust the U-shaped seat, and simultaneously controlling the second electric telescopic piece to stretch to close the guide rail frame unit;
s3, in the closing process, the extrusion cylinder extrudes the FRP cloth which is pulled on the outer side on the column surface of the pier column, and the outer side surface of the FRP cloth is coated with glue and firmly adsorbed on the column surface of the pier column;
s4, driving the gear to rotate by controlling the upper servo motor and the lower servo motor, enabling the gear to rotate along the rail frame by the arc sliding seat pushed by the reaction force of the arc teeth, continuously releasing FRP cloth in the rotating process, extruding the FRP cloth on the cylindrical surface of the pier column through the extrusion cylinder after passing through the middle of the two groups of vertical plates, and automatically rotating to finish the winding work of the FRP cloth;
s5, after winding is finished, the gear is driven by the upper servo motor and the lower servo motor to rotate so that the arc-shaped sliding seats are located at the inner sides of two ends of the rail frame, the rail frame is controlled to be opened by controlling the second electric telescopic piece to shrink, the telescopic button is pushed to slide outwards by the second spring in the opening process, the telescopic button slides outwards to pull the clamping piece to reset to the vertical position, and the bottom end of the clamping piece stretches out of the third sliding groove and is inserted into the rail groove, so that the sliding seat body is prevented from falling off from the rail frame. And simultaneously, the lifting large arm and the reinforced soil pier column construction equipment are retracted by reverse operation.
Compared with the prior art, the utility model has the following advantages:
through the roof installed on the top of the lifting large arm on the lifting equipment, the top end of the roof is rotatably provided with a U-shaped seat with an adjustable inclination angle, a guide rail frame unit capable of opening and closing is installed on the U-shaped seat, a sliding seat body is installed on the guide rail frame unit, an FRP cloth roll is installed on the sliding seat body, meanwhile, a radially telescopic extrusion unit is installed on the inner side of the sliding seat body, and the extrusion unit extrudes FRP cloth on a pier surface; the guide rail frame unit comprises two groups of semicircular guide rail frames, one ends of the same sides of the two groups of semicircular guide rail frames are hinged to the U-shaped seat, and locking pieces are symmetrically arranged at two ends of each semicircular guide rail frame; when the two groups of semicircular guide rail frames are closed, the locking piece extrudes and contracts, so that the sliding seat body performs closed-loop sliding on the guide rail frame units; when the two groups of semicircular guide rail frames are opened, the locking piece prevents the sliding seat body from sliding out of the semicircular guide rail frames; the two sides of the bottom of the U-shaped seat are symmetrically hinged with second electric telescopic parts which respectively control the opening and closing of the two groups of semicircular guide rail frames, when the device is used, the FRP cloth roll is arranged on the sliding seat body, the FRP cloth released by the FRP cloth roll is simultaneously pulled on the extrusion unit, the lifting large arm is adjusted by controlling the lifting equipment to drive the reinforced mound column construction equipment to rise to the height interval of the pier column to be wound with the FRP cloth, then the level of the guide rail frame unit is controlled by adjusting the vertical of the U-shaped seat, the semicircular guide rail frames are controlled to be opened by the shrinkage of the second electric telescopic parts, at the moment, the lifting equipment is required to be controlled to move or the lifting large arm is required to be controlled to move so as to clamp the opened semicircular guide rail frame on the pier column, meanwhile, the second electric telescopic piece is controlled to extend so as to control the semicircular guide rail frame to be closed, a certain gap exists between the inner side surface of the guide rail frame unit and the cylindrical surface of the pier column, one end of the FRP cloth is extruded on the cylindrical surface of the pier column by the extrusion unit in the closing process, meanwhile, the extrusion unit is arranged in a telescopic mode so as to meet the laying operation of the cylindrical surface of the pier column aiming at a plurality of different diameters, and the application range of the equipment is improved; through controlling the sliding seat body and rotating along the guide rail frame unit, the extrusion unit that drives the inboard at pivoted in-process rotates along pier column cylinder, extrusion unit constantly extrudes the FRP cloth that releases and lays, make the FRP cloth layer glue glutinous winding, accomplish the mechanized automatic laying of FRP cloth from this, reverse operation opens two sets of semicircular guide rail frames after finishing laying makes equipment deviate from the pier column, set up the latch and avoid the sliding seat body to deviate from semicircular guide rail frame simultaneously, the operational safety and stability of equipment has been improved, in sum, satisfy the function of laying FRP cloth to pier column cylinder voluntarily through above structural design, the operating efficiency has been improved, it is better to lay glutinous effect, personnel's risk of ascending operation existence has been avoided.
Drawings
FIG. 1 is a perspective view I of non-full-height reinforced mound column construction equipment provided by an embodiment of the utility model;
FIG. 2 is a second perspective view of the non-full-height reinforced mound column construction equipment provided by the embodiment of the utility model;
FIG. 3 is a perspective view of a semicircular guide rail frame provided by an embodiment of the present utility model;
fig. 4 is a perspective view illustrating installation of a sliding seat and an extrusion unit according to an embodiment of the present utility model;
FIG. 5 is a perspective view showing the installation and separation of a sliding seat and an extrusion unit according to an embodiment of the present utility model;
fig. 6 is a second perspective view of the sliding seat and the pressing unit according to the embodiment of the present utility model;
FIG. 7 is a partially enlarged perspective view of a T-shaped block in half section provided by an embodiment of the utility model;
fig. 8 is a partially enlarged perspective view of a lock according to an embodiment of the present utility model.
In the figure: 1. lifting the large arm; 2. a top plate; 3. a U-shaped seat; 4. a first electric telescopic member; 5. a first fixing column; 6. a rail frame; 61. a connecting piece; 7. a U-shaped frame; 8. a rail groove; 9. an arc-shaped groove; 10. arc teeth; 11. an arc sliding seat; 12. an arc-shaped clamping groove; 13. a connecting column; 14. FRP cloth roll; 15. a gear groove; 16. a gear; 17. a servo motor; 18. a T-shaped block; 19. a vertical plate; 20. a first sliding groove; 21. A first spring; 22. an extrusion cylinder; 23. a connecting shaft; 231. a slide block; 24. a second sliding groove; 25. a third sliding groove; 26. a second fixing column; 27. a second spring; 28. a telescoping button; 29. a clamping piece; 291. Limiting sliding grooves; 30. a pin; 31. and a second electrically operated telescopic member.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
As shown in fig. 1-8, the construction device for the non-fully high reinforced pier column by adopting the UHPC increasing cross section method comprises a lifting large arm 1 arranged on lifting equipment and a top plate 2 arranged at the top of the lifting large arm 1, wherein the lifting of the lifting large arm 1 is controlled by the lifting equipment, the purpose of winding and laying FRP cloth on the column surfaces of pier columns with different heights is achieved, a U-shaped seat 3 with an adjustable inclination angle is rotatably arranged at the top end of the top plate 2, the purpose of fine adjustment is met by arranging the U-shaped seat 3 with an adjustable inclination angle, a guide rail frame unit capable of opening and closing is arranged on the U-shaped seat 3, a sliding seat body is arranged on the guide rail frame unit, an FRP cloth roll 14 is arranged on the sliding seat body, meanwhile, a layer-by-layer radially telescopic extrusion unit is arranged on the inner side of the sliding seat body, the FRP cloth is extruded on the pier surface by the extrusion unit, the FRP cloth is continuously extruded by the extrusion unit in the process of the column surfaces of pier columns in the rotating process, the sliding seat body is uniformly laid by arranging the extrusion unit along the guide rail frame unit, and the diameter of the different telescopic pier columns can be met by arranging the extrusion unit along the guide rail frame unit, and the diameter of the telescopic pier column can be applied to the different diameter ranges; the guide rail frame unit comprises two groups of semicircular guide rail frames, one ends of the same sides of the two groups of semicircular guide rail frames are hinged to the U-shaped seat 3, and locking pieces are symmetrically arranged at two ends of each semicircular guide rail frame; when the two groups of semicircular guide rail frames are closed, the locking piece extrudes and contracts, so that the sliding seat body performs closed-loop sliding on the guide rail frame units; when the two groups of semicircular guide rail frames are opened, the locking piece prevents the sliding seat body from sliding out of the semicircular guide rail frames, and the safety and stability of equipment operation are improved by arranging the locking piece; the two sides of the bottom of the U-shaped seat 3 are symmetrically hinged with second electric telescopic members 31 which respectively control the opening and closing of the two groups of semicircular guide rail frames, and the opening and closing of the semicircular guide rail frames are controlled by controlling the two groups of second electric telescopic members 31, so that the structure is simple in linkage and stable in closing. .
As shown in fig. 1 and 2, the top end of the top plate 2 is rotatably connected with the outer side of the top of the U-shaped seat 3, a first electric telescopic part 4 for controlling the inclination angle of the U-shaped seat 3 is installed between the bottom of the U-shaped seat 3 and a side surface above the lifting big arm 1, two ends of the first electric telescopic part 4 are rotatably installed on the bottom of the U-shaped seat 3 and a side surface above the lifting big arm 1 respectively, the first electric telescopic part 4 is controlled to extend out to push the U-shaped seat 3 to rotate, the included angle between the first electric telescopic part and the lifting big arm 1 is increased, the included angle is reversely contracted and reduced, and therefore the function of fine adjustment of the angle is realized, and the function of controlling the parallelism between the inner side surface of the guide rail frame unit and the column surface of the pier is used for controlling.
As shown in fig. 1, 2 and 3, the semicircular guide rail frame comprises two groups of semicircular guide rail frames 6, a U-shaped frame 7 and two groups of arc-shaped teeth 10, the two groups of guide rail frames 6 are distributed in an up-down parallel manner, the radial outer sides of the opening ends of the two groups of guide rail frames 6 are connected through the U-shaped frame 7, the stability of connection of the upper and lower guide rail frames 6 is increased by arranging the U-shaped frame 7, the connecting pieces 61 are respectively connected to the radial outer sides of the other ends of the two groups of guide rail frames 6, four connecting pieces 61 included in the two groups of semicircular guide rail frames are rotatably arranged on a first fixed column 5 arranged on the opening side of the U-shaped seat 3, the middle parts of the upper and lower guide rail frames 6 are provided with open opposite semicircular guide rail grooves 8, the middle parts of the inner side surfaces of the upper and lower guide rail frames 6 are provided with arc-shaped teeth 10 by being provided with arc-shaped grooves 9, and the second electric telescopic pieces 31 push the upper and lower guide rail frames 6 to rotate around the first fixed column 5, so that the folding purpose is achieved.
When the two groups of semicircular guide rail frames are closed, the arc-shaped teeth 10 on the two groups of corresponding guide rail frames 6 above and below are combined to form an internal gear, and the closed internal gear is formed to facilitate the running of a driving mechanism installed on the sliding seat body and realize the stable running of a closed loop.
As shown in fig. 1, 5 and 6, a sliding seat body is slidably mounted between the upper rail frame 6 and the lower rail frame 6, the sliding seat body comprises two arc sliding seats 11 with J-shaped cross sections, a connecting column 13 for connecting the two groups of arc sliding seats 11 and a driving mechanism, arc clamping grooves 12 are formed in the arc sliding seats 11, arc short plates and arc long plates are arranged on the arc sliding seats 11 at two sides of each arc clamping groove 12, the arc short plates are inserted into the rail grooves 8, FRP cloth rolls 14 are rotatably mounted on the connecting column 13, the driving mechanism is mounted on the arc long plates, the upper and lower arc sliding seats 11 are driven to walk around the rail frames 6 of the upper and lower closed loops by the driving mechanism mounted on the arc long plates at the outer sides of the upper and lower arc sliding seats 11, so that the function of stable walking is realized, and the extrusion units at the inner sides are matched to lay and pull the FRP cloth rolls, so that the FRP cloth is released in the walking process of the sliding seat body, and the FRP cloth is extruded and wound by the extrusion units.
As shown in fig. 5 and 6, the driving mechanism comprises a gear 16 and a servo motor 17, the arc-shaped long plate is provided with a gear groove 15 penetrating through two side surfaces, the gear 16 is installed in the gear groove 15, the gear 16 is installed in meshed mode with the arc-shaped teeth 10, the servo motor 17 is installed at the outer side end of the arc-shaped long plate, the output end of the servo motor 17 penetrates into the gear groove 15 and is connected with the gear 16, the gear 16 is driven to rotate by controlling the servo motor 17, and the gear 16 acts on the arc-shaped teeth 10 and walks along the rail frame 6 under the reactive force of the arc-shaped teeth 10.
As shown in fig. 6 and 7, the inner side surfaces of the upper and lower arc long plates are symmetrically provided with a radially telescopic extrusion unit, the extrusion unit comprises two groups of T-shaped blocks 18, two first springs 21 and an extrusion barrel 22, the two groups of T-shaped blocks 18 are symmetrically arranged on the inner side surfaces of the upper and lower arc sliding seats 11, simultaneously, the opposite surfaces of the two groups of T-shaped blocks 18 are symmetrically provided with first sliding grooves 20, the two ends of the extrusion barrel 22 are symmetrically provided with connecting shafts 23, the connecting shafts 23 are rotatably provided with sliding blocks 231, the sliding blocks 231 are slidably arranged in the first sliding grooves 20, simultaneously, the sliding blocks 231 are connected with one end inner side surface of the first sliding grooves 20 along the radial outer side surface of the rail frame 6 by the first springs 21, the inner side surface of the rail frame 6 is difficult to be uniformly parallel to the column of the pier column in the operation process, the extrusion barrel 22 is slidably arranged so that the extrusion barrel is provided with the purpose of automatically elastically adjusting the extrusion of the FRP cloth, the sliding blocks 231 are pushed to radially and move inwards by the first springs 21, the sliding blocks 231 act on the connecting shafts 23 at the upper and lower ends of the extrusion barrel 22, thus the elastic extrusion effect is achieved, and the functions of laying the column columns of the FRP cloth with various diameters within the specified range are satisfied.
As shown in fig. 5 and 6, vertical plates 19 are symmetrically installed between two sets of T-shaped blocks 18 on the outer side of the extrusion cylinder 22, the FRP cloth released by the FRP cloth roll 14 slides onto the cylinder wall of the extrusion cylinder 22 through the space between the two sets of vertical plates 19, and the release of the FRP cloth is limited by arranging the two sets of vertical plates 19, so that the situation of laying deflection caused by uneven release of the FRP cloth is avoided.
As shown in fig. 3 and 8, the locking parts are symmetrically installed at two ends of the upper rail frame 6, each locking part comprises a second fixed column 26, a second spring 27, a telescopic button 28, a clamping part 29 and a pin 30, the second sliding grooves 24 are concavely formed in two ends of the upper rail frame 6 along the tangential direction, the inner sides of the second sliding grooves 24 are communicated with the rail grooves 8 through third sliding grooves 25, the second fixed columns 26 are installed in the second sliding grooves 24, the telescopic button 28 is slidably installed on the second fixed columns 26, meanwhile, the second springs 27 are installed on the second fixed columns 26 on the inner sides of the telescopic buttons 28, the bottom of the inner ends of the telescopic buttons 28 are hinged with the clamping parts 29, limiting sliding grooves 291 are formed in the clamping parts 29, the pins 30 penetrating through the limiting sliding grooves 291 are installed in the third sliding grooves 25, and when the telescopic buttons 28 are closed, the clamping parts 29 are driven to slide inwards by extrusion shrinkage, and the locking parts 29 are subjected to limiting action of the pins 30, so that the bottom ends of the telescopic buttons shrink and enter the third sliding grooves 25.
Working principle: lifting the reinforced mound post construction equipment to the position of the pier column to be wound with FRP cloth height through controlling lifting large arm 1 of lifting equipment, vertically pushing U-shaped seat 3 vertically through controlling first electric telescopic piece 4 to stretch and contract, opening rail frame 6 through controlling second electric telescopic piece 31 to shrink, horizontally clamping an open rail frame unit on the pier column through moving lifting equipment or controlling lifting large arm 1 of lifting equipment to stretch and contract and controlling first electric telescopic piece 4 to vertically adjust U-shaped seat 3, simultaneously controlling second electric telescopic piece 31 to stretch and close rail frame 6, extruding FRP cloth which is wound on the outside through extruding cylinder 22 in the closing process, gluing the outer side face of FRP cloth and firmly adsorbing on the pier column cylinder, controlling upper and lower servo motor 17 to drive gear 16 to rotate, and gear 16 is pushed by the reaction force of arc tooth 10 to rotate along rail frame 6, continuously releasing FRP cloth in the rotating process and extruding on the pier column through extruding cylinder 22 after passing through the middle of two groups of vertical plates 19, thereby completing the work of FRP cloth winding automatically.
In order to realize automatic laying of FRP cloth, the mechanical control working method comprises the following steps:
s1, lifting reinforced soil pier column construction equipment to the height position of FRP cloth to be wound on a pier column by controlling a lifting large arm 1 of lifting equipment, and opening a guide rail frame unit by controlling a first electric telescopic piece 4 to stretch and push a U-shaped seat 3 to be vertical and controlling a second electric telescopic piece 31 to shrink;
s2, moving lifting equipment or controlling a lifting large arm 1 of the lifting equipment to stretch and retract, controlling a first electric telescopic piece 4 to vertically adjust a U-shaped seat 3, horizontally clamping an opened guide rail frame unit on a pier stud, and simultaneously controlling a second electric telescopic piece 31 to stretch to close the guide rail frame unit;
s3, in the closing process, the extrusion cylinder 22 extrudes the FRP cloth which is pulled on the outer side on the column surface of the pier column, and the outer side surface of the FRP cloth is coated with glue and firmly adsorbed on the column surface of the pier column;
s4, driving the gear 16 to rotate by controlling the upper and lower servo motors 17, wherein the gear 16 is driven by the reaction force of the arc teeth 10 to rotate along the rail frame 6, and the FRP cloth is continuously released in the rotating process and extruded on the cylindrical surface of the pier column through the extrusion cylinder 22 after passing through the middle of the two groups of vertical plates 19, so that the FRP cloth is automatically rotated to complete the winding work of the FRP cloth;
s5, after winding is finished, the gear 16 is driven to rotate by controlling the upper servo motor 17 and the lower servo motor 17 so that the arc-shaped sliding seat 11 is positioned on the inner sides of two ends of the rail frame 6, the second electric telescopic piece 31 is controlled to be contracted to open the rail frame 6, the second spring 27 pushes the telescopic button 28 to slide outwards in the opening process, the telescopic button 28 slides outwards to pull the clamping piece 29 to reset to the vertical position, and at the moment, the bottom end of the clamping piece 29 stretches out of the third sliding groove 25 and is inserted into the rail groove 8, so that the sliding seat body is prevented from falling off from the rail frame 6. And simultaneously, the lifting large arm 1 and the construction equipment for reinforcing the soil pier column are retracted by reverse operation.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The construction device for non-full-height reinforcement pier columns by adopting a UHPC (ultra high pressure polyethylene) increasing section method comprises a lifting large arm (1) arranged on lifting equipment and a top plate (2) arranged at the top of the lifting large arm (1), and is characterized in that;
the top end of the top plate (2) is rotatably provided with a U-shaped seat (3) with an adjustable inclination angle, the U-shaped seat (3) is provided with a guide rail frame unit capable of opening and closing, the guide rail frame unit is provided with a sliding seat body, the sliding seat body is provided with an FRP cloth roll (14), meanwhile, the inner side of the sliding seat body is provided with a radially telescopic extrusion unit, and the extrusion unit is used for extruding FRP cloth of the FRP cloth roll (14) on the outer side surface of a pier column;
the guide rail frame unit comprises two groups of semicircular guide rail frames, one ends of the same sides of the two groups of semicircular guide rail frames are hinged to the U-shaped seat (3), and locking pieces are symmetrically arranged at two ends of each semicircular guide rail frame;
when the two groups of semicircular guide rail frames are closed, the locking pieces are extruded and contracted, so that the sliding seat body slides on the guide rail frame unit in a closed loop; when the two groups of semicircular guide rail frames are opened, the locking piece prevents the sliding seat body from sliding out of the semicircular guide rail frames;
two sides of the bottom of the U-shaped seat (3) are symmetrically hinged with second electric telescopic pieces (31) which respectively control the opening and closing of the two groups of semicircular guide rail frames.
2. The construction device adopting the UHPC increasing cross section method for the non-full-height reinforcement pier stud according to claim 1, wherein the top end of the top plate (2) is rotationally connected with the outer side of the top of the U-shaped seat (3), a first electric telescopic piece (4) for controlling the inclination angle of the U-shaped seat (3) is installed between the bottom of the U-shaped seat (3) and one side surface of the upper part of the lifting large arm (1), and two ends of the first electric telescopic piece (4) are rotationally installed at the bottom of the U-shaped seat (3) and one side surface of the upper part of the lifting large arm (1) respectively.
3. The construction device adopting the UHPC increasing cross section method for the non-full-height reinforcement pier stud according to claim 1, wherein the semicircular guide rail frame comprises two groups of semicircular guide rail frames (6), a U-shaped frame (7) and two groups of arc teeth (10), the two groups of guide rail frames (6) are distributed up and down in parallel, the radial outer sides of the opening ends of the two groups of guide rail frames (6) are connected through the U-shaped frame (7), the radial outer sides of the other ends of the two groups of guide rail frames (6) are respectively connected with a connecting piece (61), four connecting pieces (61) included in the two groups of semicircular guide rail frames are rotatably mounted on a first fixed column (5) mounted on the opening side of the U-shaped seat (3), arc grooves (8) with opposite openings are formed in the middle parts of the upper guide rail frame (6), and the arc teeth (10) are mounted on the middle parts of the inner side surfaces of the upper guide rail frame (6) and the lower guide rail frame (6).
4. The construction device for non-full-height reinforcement pier using UHPC increased cross section according to claim 3, wherein when the two sets of semicircular guide frames are closed, the arcuate teeth (10) on the upper and lower sets of corresponding guide frames (6) are combined to form an internal gear.
5. The construction device adopting the UHPC increasing section method for the non-full-height reinforcement pier stud according to claim 3, wherein the sliding seat body is slidably installed between the upper rail frame (6) and the lower rail frame (6), the sliding seat body comprises two arc sliding seats (11) with J-shaped cross sections, connecting columns (13) for connecting the two groups of arc sliding seats (11) and a driving mechanism for driving the sliding seat body to move on a rail frame unit, the arc sliding seats (11) are provided with arc clamping grooves (12), the arc sliding seats (11) on two sides of each arc clamping groove (12) are provided with arc short plates and arc long plates, the arc short plates are inserted into the rail grooves (8), the FRP cloth rolls (14) are rotatably installed on the connecting columns (13), and the driving mechanism is installed on each arc long plate.
6. The construction device for the ultra high-strength pier column by adopting the UHPC cross-section increasing method according to claim 5, wherein the driving mechanism comprises a gear (16) and a servo motor (17), the arc-shaped long plate is provided with a gear groove (15) penetrating through two side surfaces, the gear (16) is installed in the gear groove (15), the gear (16) is meshed with the arc-shaped teeth (10), the outer side end of the arc-shaped long plate is provided with the servo motor (17), and the output end of the servo motor (17) penetrates into the gear groove (15) and is connected with the gear (16).
7. The construction device adopting the UHPC increasing cross section method for the non-full-height reinforcement pier stud according to claim 6, wherein radially telescopic extrusion units are symmetrically arranged on the inner side surfaces of the upper arc-shaped long plates and the lower arc-shaped long plates, each extrusion unit comprises two groups of T-shaped blocks (18), two first springs (21) and an extrusion cylinder (22), the two groups of T-shaped blocks (18) are symmetrically arranged on the inner side surfaces of the upper arc-shaped sliding seat (11) and the lower arc-shaped sliding seat, simultaneously, first sliding grooves (20) are symmetrically arranged on the opposite surfaces of the two groups of T-shaped blocks (18), connecting shafts (23) are symmetrically arranged at two ends of the extrusion cylinder (22), sliding blocks (231) are rotatably arranged on the connecting shafts (23), and the sliding blocks (231) are slidably arranged in the first sliding grooves (20), and meanwhile, the outer radial side surfaces of the rail frame (6) and one inner side surface of the first sliding grooves (20) are connected through the first springs (21).
8. The construction device for the non-full-height reinforced pier column by adopting the UHPC cross-section increasing method according to claim 7, wherein vertical plates (19) are symmetrically arranged between two groups of T-shaped blocks (18) on the outer side of the extrusion cylinder (22), and FRP cloth released by the FRP cloth roll (14) slides onto the cylinder wall of the extrusion cylinder (22) through the two groups of vertical plates (19).
9. The construction device adopting the UHPC increasing cross section method for non-full-height reinforcement pier column according to claim 3, wherein the locking parts are symmetrically arranged at the two ends of the rail frame (6) positioned above, each locking part comprises a second fixed column (26), a second spring (27), a telescopic button (28), a clamping part (29) and a pin (30), the two ends of the rail frame (6) above are concavely provided with a second sliding groove (24) along the tangential direction, the inner sides of the second sliding grooves (24) are communicated with the rail groove (8) through a third sliding groove (25), the second fixed columns (26) are arranged in the second sliding grooves (24), the telescopic buttons (28) are slidably arranged on the second fixed columns (26), meanwhile, the second springs (27) are arranged on the second fixed columns (26) at the inner sides of the telescopic buttons (28), the bottoms of the inner ends of the telescopic buttons (28) are hinged with the clamping parts (29), the clamping parts (29) are arranged on the inner sides of the clamping parts, and the sliding grooves (291) are communicated with each other through the third sliding groove (25), and the telescopic buttons (28) penetrate through the three sliding grooves (291) to form a limit groove (30); when the two groups of semicircular guide rail frames are opened, the telescopic buttons (28) extend out and push the clamping pieces (29) to extend into the rail grooves (8).
10. A construction method for non-full-height reinforcement pier stud by using UHPC (ultra high pressure polyethylene) increasing cross section method, which is characterized in that a construction device for non-full-height reinforcement pier stud by using UHPC increasing cross section method as set forth in any one of claims 1-9 is adopted, the construction method comprises the steps of winding FRP cloth on the pier stud, and the steps of winding FRP cloth comprise the following steps:
s1, lifting reinforced soil pier column construction equipment to the height position of FRP cloth to be wound on a pier column by controlling a lifting large arm (1) of lifting equipment, stretching and pushing a U-shaped seat (3) vertically by controlling a first electric telescopic piece (4) to ensure the level of a guide rail frame unit, and controlling a second electric telescopic piece (31) to shrink to open the guide rail frame unit;
s2, moving lifting equipment or controlling a lifting large arm (1) of the lifting equipment to stretch and retract, controlling a first electric telescopic piece (4) to vertically adjust a U-shaped seat (3) to horizontally clamp an opened guide rail frame unit on a pier column, and controlling a second electric telescopic piece (31) to stretch to close the guide rail frame unit;
s3, in the closing process, the extrusion cylinder (22) extrudes the FRP cloth which is pulled on the outer side on the column surface of the pier, and the outer side surface of the FRP cloth is coated with glue and firmly adsorbed on the column surface of the pier;
s4, driving a gear (16) to rotate by controlling an upper servo motor (17) and a lower servo motor, wherein the gear (16) is driven by the reaction force of an arc tooth (10) to rotate along a rail frame (6), FRP cloth is continuously released in the rotating process and extruded on the cylindrical surface of a pier column through an extrusion cylinder (22) after passing through the middle of two groups of vertical plates (19), and therefore the FRP cloth is automatically rotated to finish the winding work of the FRP cloth;
s5, after winding is finished, the gear (16) is driven to rotate through the control upper and lower servo motor (17), the arc sliding seat (11) is located at the inner sides of two ends of the rail frame (6), the second electric telescopic piece (31) is controlled to be contracted to open the rail frame (6), the second spring (27) pushes the telescopic button (28) to slide outwards in the opening process, the telescopic button (28) slides outwards to pull the clamping piece (29) to reset to the state that part of the clamping piece stretches into the rail groove (8), at the moment, the bottom end of the clamping piece (29) stretches out the third sliding groove (25) and is inserted into the rail groove (8), and meanwhile, the lifting large arm (1) and the reinforced soil pier column construction equipment are reversely operated to be retracted.
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|---|---|---|---|
| CN202210904700.8A CN115217348B (en) | 2022-07-29 | 2022-07-29 | Construction device and method for non-full-height reinforcement pier column by UHPC (ultra high pressure polyethylene) increased section method |
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| CN202210904700.8A CN115217348B (en) | 2022-07-29 | 2022-07-29 | Construction device and method for non-full-height reinforcement pier column by UHPC (ultra high pressure polyethylene) increased section method |
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| CN107059665A (en) * | 2017-06-19 | 2017-08-18 | 桂林理工大学 | A kind of method of utilization pre-stress FRP cloth reinforced steel concrete pier stud |
| KR102110720B1 (en) * | 2019-10-22 | 2020-05-14 | 황성운 | reinforcing structure of concrete structure using FRP panel |
| CN211815656U (en) * | 2020-02-28 | 2020-10-30 | 福州大学 | Reinforced concrete pier stud reinforced by UHPC (ultra high Performance concrete) section increasing method |
| CN114718338A (en) * | 2022-04-20 | 2022-07-08 | 青岛理工大学 | Self-compacting concrete FRP sleeve reinforcing device and construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392288B (en) * | 2020-12-07 | 2024-06-04 | 福州大学 | Device and method for reinforcing wood beam by combining prestress FRP (fiber reinforced Plastic) and high-strength steel wire rope |
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| CN107059665A (en) * | 2017-06-19 | 2017-08-18 | 桂林理工大学 | A kind of method of utilization pre-stress FRP cloth reinforced steel concrete pier stud |
| KR102110720B1 (en) * | 2019-10-22 | 2020-05-14 | 황성운 | reinforcing structure of concrete structure using FRP panel |
| CN211815656U (en) * | 2020-02-28 | 2020-10-30 | 福州大学 | Reinforced concrete pier stud reinforced by UHPC (ultra high Performance concrete) section increasing method |
| CN114718338A (en) * | 2022-04-20 | 2022-07-08 | 青岛理工大学 | Self-compacting concrete FRP sleeve reinforcing device and construction method |
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