CN215657597U - Improve bed-jig of prefabricated pier stud steel reinforcement cage assembly precision - Google Patents
Improve bed-jig of prefabricated pier stud steel reinforcement cage assembly precision Download PDFInfo
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- CN215657597U CN215657597U CN202122029830.5U CN202122029830U CN215657597U CN 215657597 U CN215657597 U CN 215657597U CN 202122029830 U CN202122029830 U CN 202122029830U CN 215657597 U CN215657597 U CN 215657597U
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Abstract
The utility model relates to a jig frame for improving the assembling precision of a prefabricated pier stud reinforcement cage, which comprises a frame body base, a fixed end plate for positioning one end of a main reinforcement of the reinforcement cage, a movable jig frame for positioning the main reinforcement of the reinforcement cage, and an end adjusting jig frame for positioning the other end of the main reinforcement of the reinforcement cage; the fixed end plate is fixed on the frame body base, the movable jig frame is arranged on the frame body base in an adjustable mode, and the fixed end plate, the plurality of movable jig frames and the end adjusting jig frame are sequentially arranged from back to front; according to the utility model, the end plate, the end adjusting bolt and the bolt mounting piece are arranged on the end adjusting jig frame to realize fine adjustment of the position of the main reinforcement of the reinforcement cage, so that the positioning precision of the main reinforcement of the reinforcement cage is improved. The utility model belongs to the field of assembled bridges.
Description
Technical Field
The utility model relates to the field of assembled bridges, in particular to a jig frame for improving assembling precision of a prefabricated pier stud reinforcement cage.
Background
In the middle of the prefabricated bridge production, the steel reinforcement cage assembly is always important and difficult, the finished product ratio of the final bridge is influenced by the accuracy of the steel reinforcement cage assembly, and the movable working frame is generally adopted in the prefabricated bridge production, so that the accuracy requirement on the steel reinforcement assembly welding is very high, and the improvement of the assembly welding accuracy becomes a very key point for the steel reinforcement cage assembly construction.
The jig frame is a mould, mainly plays a role in bearing and bearing a force, is special technological equipment for facilitating the assembly and welding of mechanical equipment, and is widely applied to template engineering, steel structure installation engineering and bridge engineering. The steel reinforcement cage passes through the bed-jig and realizes that the level is fixed, just begins to twine the stirrup on the main muscle after fixing main muscle position, thereby accomplish the preparation of prefabricated pier stud in the concrete placement that alright realize whole steel reinforcement cage through the grout sleeve of fixed mounting at main muscle tail end after accomplishing the steel reinforcement cage preparation. The grouting sleeve of the existing jig frame has insufficient positioning accuracy and insufficient main rib position accuracy, and meanwhile, the steel reinforcement cage of the existing jig frame is slow in assembly speed.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model aims to: the utility model provides a thereby can also finely tune main muscle after main muscle location has the bed-jig of prefabricated pier stud steel reinforcement cage assembly precision of improvement of higher assembly precision.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a jig frame for improving the assembling precision of a prefabricated pier stud reinforcement cage comprises a frame body base, a fixed end plate for positioning one end of a main reinforcement of the reinforcement cage, a movable jig frame for positioning the main reinforcement of the reinforcement cage, and an end adjusting jig frame for positioning the other end of the main reinforcement of the reinforcement cage; the fixed end plate is fixed on the frame body base, the movable jig frame is arranged on the frame body base in an adjustable mode, and the fixed end plate, the plurality of movable jig frames and the end adjusting jig frame are sequentially arranged from back to front; the end part adjusting jig frame comprises an end plate, an end part adjusting bolt and a bolt mounting piece, the bolt mounting piece is fixedly connected with the end plate, and the head part of the end part adjusting bolt is screwed in and penetrates out of the bolt mounting piece; the end plate is provided with a circle of holes for the main reinforcements of the reinforcement cage to pass through, and the inner diameter of each hole is larger than the outer diameter of each main reinforcement of the reinforcement cage; each hole is correspondingly provided with a plurality of end adjusting bolts surrounding the hole, and the head parts of the end adjusting bolts are propped against the side wall of the main reinforcement of the reinforcement cage penetrating through the hole. After adopting this kind of structure, fix main muscle one end on fixed end plate and carry out spacing back to main muscle through removing the bed-jig, can utilize the end regulation end plate to carry out the position fine setting to main muscle, main muscle passes the hole of end regulation end plate after, the extrusion to the main muscle lateral wall through the tip adjusting bolt of a plurality of directions makes main muscle fixed in required position to improve the positioning accuracy of main muscle.
Preferably, each hole is correspondingly provided with three end adjusting bolts, and the three end adjusting bolts are uniformly distributed around the hole. After adopting this kind of structure, can realize the regulation to main muscle wider through three tip adjusting bolt around main muscle circumference equipartition, also can increase the regulation precision of main muscle simultaneously.
Preferably, the bolt mounting piece comprises a coaming and an end plate adjusting angle steel, and the coaming and the end plate adjusting angle steel are both perpendicular to the end plate; the coaming is annularly arranged at the inner side of the circle of holes, and the end part adjusting bolts with the same number as the holes are arranged on the coaming; the end adjusting angle steel with the same number of the holes is arranged on the outer side of the holes, and each end adjusting angle steel is provided with two end adjusting bolts. After adopting this kind of structure, tip adjusting bolt can be fine spacing fixed on bounding wall and angle steel, can not take place the not hard up condition that drops of tip adjusting bolt.
Preferably, the coaming and the end part adjusting angle steel are both arranged on the front end surface of the end plate; the end plate is a hollow annular structure. After adopting this kind of structure, operating personnel can be more convenient carry out the fine setting operation to the owner muscle.
As an optimization, the jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage further comprises a plurality of reinforcing ribs which are uniformly distributed on the inner side of the enclosing plate, and the reinforcing ribs are fixedly connected with the enclosing plate and the end plate. After adopting this kind of structure, can strengthen the intensity that the tip adjusted the bed-jig, guarantee that the tip adjusts the bed-jig and normally works.
As an optimization, the jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage further comprises a walking platform, the walking platform is erected on two sides of the movable jig frame and comprises a protective railing on the outer side and a walking platform pressing plate at the bottom, and the walking platform pressing plate is a long-strip steel plate or a lattice plate. After adopting this kind of structure, operating personnel can carry out the position adjustment of main muscle and stirrup installation work on walking the platform.
As an optimization, the protection railing is of a round steel structure, the protection railing is fixed above the walking board through welding, and the walking board is fixed on two sides of the movable jig frame through welding. After adopting this kind of structure, the structure of walking the platform makes its dead weight low, is favorable to the holistic removal of bed-jig and dismouting.
Preferably, the fixed end plate comprises a rubber plunger and plunger holes for positioning the grouting sleeve, a plurality of plunger holes corresponding to the main ribs are formed in the fixed end plate, and the rubber plunger is fixed in the plunger holes through bolts; improve bed-jig of prefabricated pier stud steel reinforcement cage equipment precision still includes tail end and rubber plunger fixed connection's grout sleeve, and the tail end of main muscle cup joints in grout sleeve. After adopting this kind of structure, grout sleeve can be fixed on corresponding position, and the tail end of owner muscle can be fixed on grout sleeve.
Preferably, the movable jig frame comprises a main rib supporting frame and a fixed frame; a circle of limiting devices for the main reinforcements to penetrate through are arranged on the main reinforcement supporting frame, and the main reinforcement supporting frame is fixedly connected with the fixed frame through bolts; the fixed frame comprises a horizontally arranged bottom cross beam and two vertically arranged I-beams, the bottom cross beam is fixedly arranged on the frame body base through bolts, the I-beams are fixedly arranged above the bottom cross beam, and the distance between the two I-beams corresponds to the width of the reinforcement cage; a plurality of groups of bolt hole sites are arranged on the frame body base, each group of bolt hole sites corresponds to a mounting position of the fixed frame, and the number of the groups of bolt hole sites is greater than the number of the movable jig frames; the multiple groups of bolt hole sites are distributed along the frame body base from back to front. After adopting this kind of structure, to the steel reinforcement cage of different length, remove the bed-jig and can change its position and guarantee the position accuracy of main muscle.
Preferably, the jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage further comprises a pull rod device, wherein the pull rod device comprises a round steel component in the middle and screw rod components at two ends, the screw rod component at one end is hinged with the base of the frame body, and the screw rod component at the other end is hinged with the fixed end plate; the screw rod part is provided with external threads, the round steel part is internally and correspondingly provided with internal threads, and the screw rod part is sleeved with the round steel part. After adopting this kind of structure, the pull rod device can guarantee the stability of fixed end plate, and when fixed end plate change position, pull rod device can correspond and change length and continue work simultaneously.
In summary, the present invention has the following advantages:
1. can realize finely tuning the operation at the steel reinforcement cage front end to the main muscle through the tip adjusting bracket, guarantee that the position range of steel reinforcement cage main muscle improves the positioning accuracy of steel reinforcement cage main muscle in the design accuracy, further improves the actual performance of steel reinforcement cage.
2. Simple structure guarantees that grout sleeve, pier stud owner muscle's position and steel reinforcement cage length (pier stud height) are accurate.
3. The support body base, the movable jig frame and the support frame are all reserved with screw holes, so that the applicability is wide, and the assembly and disassembly are convenient.
4. The pull rod device adopts a telescopic round rod structure and can be used for adjusting the position of the fixed end plate.
5. The fixed end plate utilizes rubber to position the grouting sleeve, rubber can be recycled, and the construction environment is relatively clean and tidy.
6. The arrangement of the walking platform and the walking bedplate is convenient for constructors to operate.
7. The whole device is easy to hoist and safe to operate.
Drawings
Fig. 1 is a perspective view of the present invention after assembly of a reinforcement cage.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a partial enlarged view of the latter half of the utility model.
Fig. 4 is a schematic view of a rack base.
FIG. 5 is a schematic view of an adjustment jig frame
FIG. 6 is a schematic view of a drawbar arrangement
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
In the attached drawings, 1 is a pull rod device, 2 is a rubber plunger, 3 is a fixed end plate, 4 is a main rib support frame, 5 is a movable jig frame, 6 is I-shaped steel, 7 is a frame body base, 8 is a bolt, 9 is a bolt hole position, 10 is an end adjusting jig frame, 11 is a walking platform, 12 is a bottom cross beam, 13 is an end adjusting bolt, 14 is end adjusting angle steel, 15 is an end adjusting jig frame end plate, 16 is a round steel component, and 17 is a screw component.
The utility model relates to a jig frame for improving assembling precision of a prefabricated pier stud reinforcement cage. The jig comprises a frame body base horizontally arranged at the bottom of a jig frame, a pull rod device arranged above the frame body base, a fixed end plate, a movable jig frame and an end adjusting jig frame.
In this embodiment, the support body base is the rectangular frame steel construction that the rectangular steel construction that distributes around by and the short steel construction that distributes about constitutes, is provided with 11 groups of bolt hole sites on the upper surface of support body base, and every group bolt hole site corresponds a fixed frame's installation position.
Draw-bar gear fixed mounting is in the rear side of support body base, draw-bar gear includes the bottom crossbeam, round steel part and screw rod part, the bottom crossbeam passes through the bolt fastening on the support body base, the round steel part all is provided with the telescopic structure of internal thread for both ends, screw rod part one end is the external screw thread that corresponds the setting with the round steel part internal thread, the other end is coupling assembling, the both ends of a round steel part all are connected with a screw rod part, the screw rod part tip and the fixed end plate fixed connection that are located the top, the screw rod part tip and the bottom crossbeam fixed connection that are located the below. And a group of pull rods are fixedly connected to the two sides of the fixed end plate respectively.
The fixed end plate is including being used for fixed position grout telescopic rubber plunger, plunger hole, and fixed end plate bottom is through bolt fixed mounting on the support body base, and the plunger hole sets up on the front surface of fixed end plate, and the plunger hole is according to the position distribution of arranging of main muscle, and a plurality of plunger hole evenly distributed is round square shape. The rubber plunger is a hollow circular cylinder, the rubber plunger is arranged in a plunger hole, and the screw penetrates into the hollow part of the rubber plunger from the rear side of the fixed end plate and penetrates out of the hollow part of the rubber plunger, and is locked at the front end of the rubber plunger through the nut. The fixed end plate lower part is provided with support piece, and support piece includes the vertical support piece of the vertical setting in both sides and the horizontal support piece of bottom level setting, and horizontal support piece bottom is provided with the bolt hole that is used for fixing, the face and the vertical support piece fixed connection of fixed end plate, and the side of fixed end plate face evenly is provided with the round strengthening rib.
A grouting sleeve is arranged in front of the fixed end plate, the rubber plunger piston expands through the screw rod and the rubber plunger piston extruded by the plunger piston hole, and the grouting sleeve arranged outside the rubber plunger piston is compressed and fixed. The front end of the grouting sleeve is fixedly connected with the main ribs, and the main ribs are sleeved inside the grouting sleeve.
The movable jig frame comprises a main rib support frame and a fixed frame; the main rib support frame is of a square frame structure, a circle of limiting device for the main rib to penetrate through is arranged on the inner ring of the main rib support frame, the main rib penetrates through the main rib support frame and is lapped on the limiting device, and the main rib support frame is fixedly connected with the fixed frame through bolts; the fixed frame comprises a bottom cross beam and two I-shaped steels, the bottom cross beam is horizontally arranged, the two I-shaped steels are vertically arranged, the bottom cross beam is fixedly installed on the frame body base through bolts, the I-shaped steels are fixedly installed above the bottom cross beam, and the distance between the two I-shaped steels corresponds to the width of the reinforcement cage. This embodiment is provided with four removal bed-jigs, and four removal bed-jigs will remove the bed-jig and install on the position of difference through 11 groups of bolt hole sites that set up on the upper surface of support body base when the steel reinforcement cage of different length of construction to the concrete length of adaptation steel reinforcement cage carries out construction operation.
The end adjusting jig frame is arranged in front of the movable jig frame positioned at the foremost side and comprises an end plate, an end adjusting bolt and a bolt mounting piece, the bolt mounting piece is fixedly connected with the end plate, and the head of the end adjusting bolt is screwed in and penetrates out of the bolt mounting piece; the end plate is provided with a circle of holes for the main reinforcements of the reinforcement cage to pass through, and the inner diameter of each hole is larger than the outer diameter of each main reinforcement of the reinforcement cage; each hole is correspondingly provided with a plurality of end adjusting bolts surrounding the hole, and the head parts of the end adjusting bolts are propped against the side wall of the main reinforcement of the reinforcement cage penetrating through the hole. The bolt mounting piece comprises a coaming and an end plate adjusting angle steel, and the coaming and the end plate adjusting angle steel are both perpendicular to the end plate; the coaming is annularly arranged at the inner side of the circle of holes, and the end part adjusting bolts with the same number as the holes are arranged on the coaming; the end adjusting angle steel with the same number of the holes is arranged on the outer side of the holes, and each end adjusting angle steel is provided with two end adjusting bolts. The end adjusting jig frame is further provided with a plurality of reinforcing ribs which are evenly distributed on the inner side of the enclosing plate, and the reinforcing ribs are fixedly connected with the enclosing plate and the end plate, so that the strength of the end adjusting jig frame is further increased. The bounding wall specifically encloses for square shape, and two flanks of end plate regulation angle steel surround the hole with the bounding wall jointly, all is provided with an tip adjusting bolt on every flank of end plate regulation angle steel, and every hole correspondence is provided with three tip adjusting bolt promptly, revolves soon through twisting tip adjusting bolt in three orientation for thereby tip adjusting bolt bulldozes the position that changes main muscle to main muscle in three orientation, realizes the fine adjustment of main muscle position.
The walking platform is fixedly arranged on two sides of the movable jig frame, the outer side of the walking platform is provided with a protective railing welded by a round rod, the bottom of the walking platform is a walking platform pressing plate, and the walking platform pressing plate is a long-strip steel plate or a lattice plate. Through setting up the assembly work that walks the platform and can make constructor's more convenient reinforcing bar owner muscle of the dismouting removal of carrying out the travelling gantry.
The specific use flow of the utility model is as follows: firstly, manufacturing a frame base, welding multiple sections of I-shaped steel to form the frame base with a rectangular frame structure, and simultaneously arranging 11 groups of bolt hole positions on the I-shaped steel on two sides. Then, the fixed end plate is installed, the fixed end plate and the pull rod device are fixedly installed on the frame body base through bolts, the upper end of the pull rod is fixedly installed on the fixed end plate, and the lower section of the pull rod is fixedly connected with the frame body base. Simultaneously with the support piece and the face fixed connection of fixed end plate, pass the rubber plunger of fixed end plate with the bolt and fix, make the grout sleeve that is located the rubber plunger outside by rubber plunger fixed position through the inflation of rubber plunger. And then the main reinforcement is sleeved in the grouting sleeve. And then determining the position of the movable jig frame according to the length of the reinforcement cage and fixing the movable jig frame on a corresponding bolt hole position of the frame body base through bolts. Then pass the stop device who removes the bed-jig with the main muscle, later with the front end of tip regulation bed-jig cover at the main muscle make the main muscle pass the hole on the tip regulation bed-jig, then bulldoze the fine adjustment that the main muscle position was realized to the main muscle through setting up at the peripheral tip adjusting bolt in hole, finally make the position of main muscle be in the design accuracy. After the main reinforcement position is set, constructors can start to construct stirrups, and finally the construction operation of the reinforcement cage is completed.
The number of the movable jig frames of the present invention is not limited to four as defined in the above embodiment, and the present invention may be applied to a bolt mounting member having another shape in addition to the above embodiment, and is not limited to the structure of the square surrounding plate and the plurality of end adjustment angles.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides an improve bed-jig of prefabricated pier stud steel reinforcement cage equipment precision which characterized in that: the steel reinforcement cage fixing device comprises a frame body base, a fixing end plate for positioning one end of a main reinforcement of the steel reinforcement cage, a movable jig frame for positioning the main reinforcement of the steel reinforcement cage, and an end adjusting jig frame for positioning the other end of the main reinforcement of the steel reinforcement cage;
the fixed end plate is fixed on the frame body base, the movable jig frame is arranged on the frame body base in an adjustable mode, and the fixed end plate, the plurality of movable jig frames and the end adjusting jig frame are sequentially arranged from back to front;
the end part adjusting jig frame comprises an end plate, an end part adjusting bolt and a bolt mounting piece, the bolt mounting piece is fixedly connected with the end plate, and the head part of the end part adjusting bolt is screwed in and penetrates out of the bolt mounting piece; the end plate is provided with a circle of holes for the main reinforcements of the reinforcement cage to pass through, and the inner diameter of each hole is larger than the outer diameter of each main reinforcement of the reinforcement cage; each hole is correspondingly provided with a plurality of end adjusting bolts surrounding the hole, and the head parts of the end adjusting bolts are propped against the side wall of the main reinforcement of the reinforcement cage penetrating through the hole.
2. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 1 is characterized in that: every hole all corresponds and sets up three tip adjusting bolt, and three tip adjusting bolt encircles the equipartition around the hole.
3. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 2 is characterized in that: the bolt mounting piece comprises a coaming and an end plate adjusting angle steel, and the coaming and the end plate adjusting angle steel are both perpendicular to the end plate; the coaming is annularly arranged at the inner side of the circle of holes, and the end part adjusting bolts with the same number as the holes are arranged on the coaming; the end adjusting angle steel with the same number of the holes is arranged on the outer side of the holes, and each end adjusting angle steel is provided with two end adjusting bolts.
4. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 3, is characterized in that: the coaming and the end part adjusting angle steel are both arranged on the front end surface of the end plate; the end plate is a hollow annular structure.
5. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 3, is characterized in that: the end adjusting jig frame further comprises a plurality of reinforcing ribs which are uniformly distributed on the inner side of the enclosing plate, and the reinforcing ribs are fixedly connected with the enclosing plate and the end plate.
6. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 1 is characterized in that: the movable jig frame is characterized by further comprising a walking platform, wherein the walking platform is erected on two sides of the movable jig frame and comprises a protective railing on the outer side and a walking platform pressing plate at the bottom, and the walking platform pressing plate is a long steel plate or a lattice plate.
7. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to claim 6, is characterized in that: the protection railing is of a round steel structure, is fixed above the walking board through welding, and is fixed on two sides of the movable jig frame through welding.
8. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 1 is characterized in that: the fixed end plate comprises a rubber plunger and plunger holes for positioning the grouting sleeve, a plurality of plunger holes corresponding to the main ribs are formed in the fixed end plate, and the rubber plunger is fixed in the plunger holes through bolts; improve bed-jig of prefabricated pier stud steel reinforcement cage equipment precision still includes tail end and rubber plunger fixed connection's grout sleeve, and the tail end of main muscle cup joints in grout sleeve.
9. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 1 is characterized in that: the movable jig frame comprises a main rib support frame and a fixed frame; a circle of limiting devices for the main reinforcements to penetrate through are arranged on the main reinforcement supporting frame, and the main reinforcement supporting frame is fixedly connected with the fixed frame through bolts; the fixed frame comprises a horizontally arranged bottom cross beam and two vertically arranged I-beams, the bottom cross beam is fixedly arranged on the frame body base through bolts, the I-beams are fixedly arranged above the bottom cross beam, and the distance between the two I-beams corresponds to the width of the reinforcement cage; a plurality of groups of bolt hole sites are arranged on the frame body base, each group of bolt hole sites corresponds to a mounting position of the fixed frame, and the number of the groups of bolt hole sites is greater than the number of the movable jig frames; the multiple groups of bolt hole sites are distributed along the frame body base from back to front.
10. The jig frame for improving the assembling precision of the prefabricated pier stud reinforcement cage according to the claim 1 is characterized in that: the pull rod device comprises a round steel component in the middle and screw rod components at two ends, wherein the screw rod component at one end is hinged with the frame body base, and the screw rod component at the other end is hinged with the fixed end plate; the screw rod part is provided with external threads, the round steel part is internally and correspondingly provided with internal threads, and the screw rod part is sleeved with the round steel part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122029830.5U CN215657597U (en) | 2021-08-26 | 2021-08-26 | Improve bed-jig of prefabricated pier stud steel reinforcement cage assembly precision |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122029830.5U CN215657597U (en) | 2021-08-26 | 2021-08-26 | Improve bed-jig of prefabricated pier stud steel reinforcement cage assembly precision |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042316A (en) * | 2022-06-28 | 2022-09-13 | 中交四公局第三工程有限公司 | Prefabricated construction method for assembled bridge pier column |
| CN118513478A (en) * | 2024-07-23 | 2024-08-20 | 中建三局集团西北有限公司 | Machining tool and machining method for framework structure reinforcement cage |
-
2021
- 2021-08-26 CN CN202122029830.5U patent/CN215657597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042316A (en) * | 2022-06-28 | 2022-09-13 | 中交四公局第三工程有限公司 | Prefabricated construction method for assembled bridge pier column |
| CN118513478A (en) * | 2024-07-23 | 2024-08-20 | 中建三局集团西北有限公司 | Machining tool and machining method for framework structure reinforcement cage |
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