A super column pouring formwork system and construction method

Abstract

The application relates to a super column pouring formwork system and a construction method, and belongs to the field of concrete building construction, which comprises a formwork, a reinforcing framework and a supporting surrounding purlin, the formwork is located on one side of the reinforcing framework, further comprises a tension screw rod, the reinforcing framework comprises a steel column cylinder, the supporting surrounding purlin is located on the side of the formwork away from the reinforcing framework, one end of the tension screw rod is connected with the steel column cylinder, the other end penetrates through the formwork and the supporting surrounding purlin and is threadedly connected with a tension nut, and the tension nut is in abutment with the side of the supporting surrounding purlin away from the reinforcing framework. In the concrete pouring process, the tension screw rod is connected with the reinforcing framework, the length requirement of the tension screw rod is reduced, the material consumption is low, and the effect of reducing the material cost is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of concrete construction, in particular to a giant column pouring formwork system and construction method. BACKGROUND

[0002] In a large high-rise building, a giant column is usually provided to support the main structure of the building, and the giant column is a reinforced concrete structure formed by pouring with a formwork.

[0003] In the related art, the cross section of a giant column is rectangular, and the width can reach 6 or 7 meters. During pouring, the steel reinforcement structure is placed in the corresponding position, and each formwork is erected around the steel reinforcement structure. The opposite formworks are connected by tension bolts, and the tension bolts generate tension on the formworks during pouring to support the formworks and improve their stability.

[0004] After pouring is completed and the concrete is solidified, the portions of the tension bolts extending out of the column surface are cut off, and the main body of the tension bolts in the middle is left in the concrete structure. However, due to the large volume of the giant column, the length of the tension bolts required is relatively long, and the number is relatively large. The above construction method will cause a large amount of cost waste. SUMMARY

[0005] In order to improve the above problems, the present application provides a giant column pouring formwork system and construction method.

[0006] The giant column pouring formwork system and construction method provided by the present application adopts the following technical solution:

[0007] A giant column pouring formwork system, comprising a formwork, a reinforcing framework and a support surround purlin, the formwork is located on one side of the reinforcing framework, further comprising a tension screw rod, the reinforcing framework comprises a steel column cylinder, the support surround purlin is located on the side of the formwork away from the reinforcing framework, one end of the tension screw rod is connected with the steel column cylinder, the other end passes through the formwork and the support surround purlin and is threadedly connected with a tension nut, and the tension nut abuts against the side of the support surround purlin away from the reinforcing framework.

[0008] By adopting the above technical solution, one end of the tension screw rod is connected with the steel column cylinder in the concrete structure, so that the tension screw rod does not need to penetrate the entire width of the giant column. Therefore, the amount of material used by the pouring formwork system for the tension screw rod is greatly reduced, the material cost is saved, and the support surround purlin is used to reinforce and abut against the formwork, thereby improving the support strength of the formwork during work.

[0009] Preferably, a connecting groove is formed in the steel column cylinder, a threaded structure is formed on the groove wall of the connecting groove, one end of the tension screw rod is screwed into the connecting groove and threadedly connected with the steel column cylinder, and an isolation sleeve is fixedly connected to the steel column cylinder, the isolation sleeve is coaxial with the connecting groove and is sleeved outside the tension screw rod.

[0010] By adopting the technical scheme, the tension screw is detachably connected with the steel cylinder, and does not directly contact with the concrete during pouring, and after the formwork is removed, the tension screw can be removed, so that the tension screw is reused, and the raw material cost is further reduced.

[0011] Preferably, the isolation sleeve is coaxially provided with a matching ring at one end away from the steel cylinder, and the formwork is provided with a matching groove for inserting the matching ring, and the depth of the matching groove is less than the axial dimension of the matching ring.

[0012] By adopting the technical scheme, the hole shaft cooperation of the matching groove and the matching ring is used for assembling and positioning the formwork, and the assembly efficiency of the tension screw and the formwork is improved.

[0013] Preferably, a rotation stopping groove is formed in the side wall of the tension screw, the length direction of the rotation stopping groove is consistent with the length direction of the tension screw, a rotation stopping block is movably arranged on the isolation sleeve, the rotation stopping block is used for being inserted into the rotation stopping groove, and a control assembly is arranged on the isolation sleeve for controlling the movement of the rotation stopping block.

[0014] By adopting the technical scheme, after the rotation stopping block is inserted into the rotation stopping groove, the rotation stopping block limits the rotation of the tension screw, the tension screw cannot be easily rotated relative to the isolation sleeve and the steel cylinder, and the state stability of the tension screw and the tension bolt during thread cooperation is improved.

[0015] Preferably, a clamping protrusion is fixedly connected to the groove wall of the connecting groove, a clamping recess is formed in the side wall of the tension screw, and when the clamping protrusion is embedded in the clamping recess, the rotation stopping block is located at the slot opening of the rotation stopping groove.

[0016] By adopting the technical scheme, during the process of rotating the end of the tension screw into the connecting groove, the clamping protrusion is deformed under pressure, the friction during the rotation of the tension screw is increased, and the rotation torque is increased; when the clamping protrusion is embedded in one of the clamping recesses, the friction on the tension screw is instantaneously reduced, and the operator can obtain obvious feedback touch, and indirectly knows the relative position of the rotation stopping block and the rotation stopping groove.

[0017] Preferably, the control assembly comprises a control valve plate and a transmission rod, the control valve plate is hinged with the isolation sleeve, the hinge shaft is perpendicular to the axis of the isolation sleeve and a torsional spring is connected on the hinge shaft, the stop block is fixedly connected on the control valve plate, and the control valve plate has a tendency to turn over to move the stop block away from the tension screw in the natural state; the matching ring is detachably contacted with the isolation sleeve, the control passage is formed on the isolation sleeve, the length direction of the control passage is parallel to the length direction of the isolation sleeve, a transmission hole is formed between the control passage and the inner cavity of the isolation sleeve, the hinge shaft of the control valve plate is located on the hole wall of the transmission hole, and one end of the transmission rod is fixedly connected with the matching ring.

[0018] By adopting the technical scheme, when the matching ring is installed on the end of the isolation sleeve, the transmission rod is inserted into the control passage and pushes the control valve plate to turn over, so that the active driving of the stop block is realized.

[0019] Preferably, the steel cylinder is provided with a cross-border groove, the cross-border groove is communicated with the connecting groove, and the depth of the cross-border groove is consistent with the depth of the connecting groove, and the slot opening of the cross-border groove is communicated with the control passage.

[0020] By adopting the technical scheme, after pouring is completed, the formwork, the matching ring and the tension screw are removed, the concrete slurry is injected into the interior through the control passage, and the slurry fills the control passage, the cross-border groove, the connecting groove and the inner cavity of the isolation sleeve.

[0021] Preferably, the matching ring is provided with an auxiliary hole, one end of the auxiliary hole is located on the side end face of the matching ring away from the isolation sleeve, and the other end is located on the inner wall of the matching ring.

[0022] By adopting the technical scheme, the auxiliary hole provides a tension force point for the removal of the matching ring, and the operation convenience in the process of removing the matching ring is improved.

[0023] Preferably, the steel cylinder is provided with a plurality of steel cylinders, and a channel steel is fixedly connected between each two adjacent steel cylinders.

[0024] On the other hand, a construction method for the above-mentioned giant column pouring formwork system comprises the following steps in sequence:

[0025] S1: placing a reinforcing framework;

[0026] S2: inserting the tension screw into the isolation sleeve and screwing it into the connecting groove, and the tension screw needs to be stopped at the angle that the cardon protrusion is embedded into the cardon recess;

[0027] S3: placing the matching ring at the end of the isolation sleeve, and the transmission rod is inserted into the control passage without touching the control valve plate;

[0028] S4: set up the template, the matching groove and the matching ring cooperate with each other, and the template applies a pushing force to the matching ring, the transmission rod pushes the control valve plate to make the rotation stopping block insert into the rotation stopping groove, and the tension nut is tightened;

[0029] S5: pouring concrete into the space area surrounded by each template;

[0030] S6: after the concrete solidifies, the template is removed, the matching ring is taken down, and the tension screw rod is unscrewed;

[0031] S7: injecting concrete into the control channel through the port of the control channel, the concrete enters the connecting groove and the isolation sleeve through the cross-border groove until it is filled, the concrete at the port of the control channel and the isolation sleeve is leveled, and solidification is waited.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. By the setting of the tension screw rod and the steel column cylinder connection, the tension screw rod does not need to penetrate the entire width of the mega column, so the material amount of the pouring template system for the tension screw rod is greatly reduced, and the material cost is saved;

[0034] 2. By the setting of the connecting groove and the isolation sleeve, the tension screw rod and the steel column cylinder can be detachably connected, and during the pouring process, the tension screw rod does not directly contact the concrete, after the template is removed, the tension screw rod can be removed, and the raw material cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram for embodying the mega column pouring template system in the embodiment of the present application.

[0036] Figure 2 is a structural cross-sectional view schematic diagram for embodying the tension mechanism in the embodiment of the present application.

[0037] Figure 3 is a structural explosion schematic diagram for embodying the tension mechanism in the embodiment of the present application.

[0038] Marked: 1, template; 11, matching groove; 2, reinforcing framework; 21, steel cage; 22, steel column cylinder; 221, connecting groove; 2211, carding convex; 222, cross-border groove; 23, channel steel; 3, tension mechanism; 31, tension screw rod; 311, rotation stopping groove; 312, carding depression; 32, tension nut; 33, isolation sleeve; 331, control channel; 332, transmission hole; 34, matching ring; 341, auxiliary hole; 35, control assembly; 351, control valve plate; 352, rotation stopping block; 353, transmission rod; 4, support surrounding purlin. DETAILED DESCRIPTION

[0039] The following will be combined with the Figures 1-3This application will be described in further detail.

[0040] This application discloses a giant column casting formwork system, such as... Figure 1 As shown, it includes a template 1, a reinforcing frame 2, a supporting waler 4, and a tensioning mechanism 3; the reinforcing frame 2 will serve as the strength support frame inside the mega-column, the template 1 is used to restrict the space of the concrete during pouring, and the tensioning mechanism 3 and the supporting waler 4 are used together to position and support the template 1.

[0041] like Figure 1 As shown, the reinforcing frame 2 includes a steel reinforcement cage 21 and steel column tubes 22. Multiple steel column tubes 22 are provided and arranged sequentially along a direction. Multiple sets of steel reinforcement cages 21 are also provided. Each steel reinforcement cage 21 is either located inside a steel column tube 22 or between two adjacent steel column tubes 22. A channel steel 23 is fixedly connected between each pair of adjacent steel column tubes 22. The length direction of the channel steel 23 is the arrangement direction of each steel column tube 22. There are three channel steels 23 between each pair of adjacent steel column tubes 22.

[0042] like Figure 1 and 2 As shown, the tension mechanism 3 includes an isolation sleeve 33 and a tension screw 31. A connecting groove 221 is provided on the side wall of the steel column 22, and an internal thread structure is formed on the groove wall of the connecting groove 221. One end of the isolation sleeve 33 is fixedly connected to the side wall of the steel column 22 and is coaxial with the connecting groove 221. One end of the tension screw 31 is inserted into the isolation sleeve 33 and screwed into the connecting groove 221 to be threadedly connected to the steel column 22. At this time, the length direction of the tension screw 31 is horizontal. A mating ring 34 is coaxially provided on the end of the isolation sleeve 33 away from the steel column 22. The mating ring 34 is also coaxially passed through by the tension screw 31. The outer diameter of the mating ring 34 is larger than the outer diameter of the isolation sleeve 33. A mating groove 11 is provided on one side of the template 1 for the mating ring 34 to be inserted, and the depth of the mating groove 11 is smaller than the axial dimension of the mating ring 34. The template 1 has a through hole for the tension screw 31 to pass through. In this embodiment, the supporting waler 4 adopts a truss structure. The supporting waler 4 is close to the side of the template 1 away from the reinforcing frame 2. The end of the tension screw 31 away from the steel column 22 passes through the template 1 and the supporting waler 4 in sequence and is coaxially threaded with a tension nut 32. The supporting waler 4 is provided with a sleeve structure for the tension screw 31 to pass through. After the tension nut 32 is tightened, it abuts against the side of the supporting waler 4 away from the template, forming an abutting force on the supporting waler 4 and the template 1, so that the template 1 cannot move away from the steel column 22. The truss structure can significantly improve the uniformity of the abutting force distribution of the supporting waler 4 on the template and the support strength.

[0043] like Figure 2 and 3As shown, the side wall of the isolation sleeve 33 is provided with a control channel 331 penetrating through the whole length of the isolation sleeve 33; the middle part of the control channel 331 is provided with a transmission hole 332, the hole axis of the transmission hole 332 is the radial direction of the isolation sleeve 33; the middle part of the side wall of the tension screw 31 is provided with five rotation-stopping grooves 311, the length direction of the rotation-stopping grooves 311 is consistent with the length direction of the tension screw 31, the five rotation-stopping grooves 311 are uniformly arranged along the circumferential direction of the tension screw 31; the isolation sleeve 33 is movably provided with a rotation-stopping block 352, the isolation sleeve 33 is provided with a control assembly 35 for controlling the movement of the rotation-stopping block 352, the control assembly 35 controls the movement of the rotation-stopping block 352 so that the rotation-stopping block 352 can be inserted into the rotation-stopping groove 311; after the end of the tension screw 31 is screwed into the connecting groove 221, the rotation-stopping groove 311 is located beside the transmission hole 332, the control assembly 35 includes a control valve plate 351, the control valve plate 351 is located in the transmission hole 332 and is hinged with the hole wall of the transmission hole 332, the axis of the hinge shaft is perpendicular to the axis of the isolation sleeve 33, the rotation-stopping block 352 is fixedly connected to the control valve plate 351, the control valve plate 351 can be turned to make the rotation-stopping block 352 enter or exit the rotation-stopping groove 311; the groove wall of the connecting groove 221 is fixedly connected with a jamming protrusion 2211, the side wall of the part of the tension screw 31 inserted into the connecting groove 221 is provided with five jamming recesses 312, the surface of the jamming protrusion 2211 and the groove surface of the jamming recess 312 are both arc surfaces, the five jamming recesses 312 are uniformly arranged around the circumference of the tension screw 31; during the process of screwing the end of the tension screw 31 into the connecting groove 221, the jamming protrusion 2211 is deformed under pressure, the friction force and the rotation torque of the tension screw 31 increase; when the jamming protrusion 2211 is sunk into one of the jamming recesses 312, the friction force received by the tension screw 31 instantaneously decreases, the operator can obtain obvious feedback touch, and at this moment, one of the rotation-stopping grooves 311 is located beside the transmission hole 332 and can be inserted by the rotation-stopping block 352.

[0044] As Figure 2 and 3As shown, the matching ring 34 is in detachable contact with the isolation sleeve 33, one end of the transmission rod 353 is fixedly connected with the end face of the matching ring 34, the length direction of the transmission rod 353 is parallel to the axial direction of the matching ring 34, and the control channel 331 is provided for the transmission rod 353 to be inserted in the process of moving the matching ring 34 to the isolation sleeve 33. The cross section of the control channel 331 and the cross section of the transmission rod 353 are both square, when the end face of the matching ring 34 abuts against the end face of the isolation sleeve 33, the end of the transmission rod 353 is located beside the transmission hole 332; the hinged shaft of the control valve plate 351 is connected with a torsion spring, in the natural state, the torsion spring makes the control valve plate 351 have a tendency to overturn to make the rotation stopping block 352 away from the tension screw 31, so that the rotation stopping block 352 is not inserted into the rotation stopping groove 311. When the transmission rod 353 is inserted into the control channel 331 and the end face of the matching ring 34 abuts against the end face of the isolation sleeve 33, the control valve plate 351 is turned over under the action of the thrust of the transmission rod 353, so that the rotation stopping block 352 can be sent into the rotation stopping groove 311.

[0045] As shown in Figure 2 and 3 As shown, the steel cylinder 22 is provided with a cross-border groove 222, the cross-border groove 222 is communicated with the connecting groove 221, the depth of the cross-border groove 222 is consistent with the depth of the connecting groove 221; the slot of the cross-border groove 222 is directly communicated with the port of the end of the control channel 331 away from the matching ring 34. After pouring, the formwork 1 and the matching ring 34 are removed, the control valve plate 351 is turned over to make the rotation stopping block 352 move out of the rotation stopping groove 311, and the tension screw 31 can also be removed. Since a part of the matching ring 34 is embedded in the concrete, in order to facilitate the dismounting of the matching ring 34, the matching ring 34 is provided with an auxiliary hole 341, one end of the auxiliary hole 341 is located on the side end face of the matching ring 34 away from the isolation sleeve 33, and the other end is located on the inner wall of the matching ring 34, the auxiliary hole 341 provides a tension force point for the dismounting of the matching ring 34, and improves the convenience of operation. Then, the concrete slurry is injected into the control channel 331 to fill the control channel 331, the cross-border groove 222, the connecting groove 221 and the inner cavity of the isolation sleeve 33.

[0046] The embodiment also provides a construction method for the above-mentioned giant column pouring formwork system, which sequentially comprises the following steps:

[0047] S1: placing the reinforcing framework 2;

[0048] S2: inserting the tension screw 31 into the isolation sleeve 33 and screwing into the connecting groove 221, so that the tension screw 31 is stopped at the angle that the cardton protrusion 2211 is embedded into the cardton recess 312;

[0049] S3: placing the matching ring 34 at the end of the isolation sleeve 33, and inserting the transmission rod 353 into the control channel 331 without touching the control valve plate 351;

[0050] S4: set up the template 1, the matching groove 11 and the matching ring 34 are matched with each other, and the template 1 applies a pushing force to the matching ring 34, the transmission rod 353 pushes the control valve plate 351 to make the rotation-stopping block 352 inserted into the rotation-stopping groove 311, a support surround purlin 4 is arranged outside the template, and the tension screw nut 32 is screwed;

[0051] S5: pouring concrete into the space area surrounded by each template 1 (including the inner cavity of the steel column cylinder 22);

[0052] S6: after the concrete is solidified, the support surround purlin 4 and the template 1 are removed, the matching ring 34 is taken off, and the tension screw rod 31 is unscrewed;

[0053] S7: injecting concrete slurry into the control channel 331 through the port of the control channel 331, the control valve plate 351 is rotated again to close the transmission hole 332 under the injection pressure of the concrete, the concrete slurry cannot enter the isolation sleeve 33 through the transmission hole 332, and the concrete slurry can only enter the connecting groove 221 and the isolation sleeve 33 through the cross-border groove 222 until it is filled, in this process, the existence of the control valve plate 351 ensures that the flowing concrete slurry has enough pressure to fill the control channel 331, the connecting groove 221 and the inner cavity of the isolation sleeve 33; after the concrete slurry overflows the port of the isolation sleeve 33, the grouting is stopped, the concrete of the port of the control channel 331 and the isolation sleeve 33 is leveled, and solidification is waited.

[0054] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made on the basis of the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A mega column formwork system comprising a formwork (1), a reinforcing cage (2) and a support surround purlin (4), the formwork (1) is located on one side of the reinforcing cage (2), characterized in that: The tension screw (31) is connected with the steel cylinder (22) at one end, and the other end penetrates the formwork (1) and the support surround purlin (4) and is threadedly connected with a tension nut (32) which abuts against the side of the support surround purlin (4) away from the reinforcing framework (2); A connecting groove (221) is formed in the steel cylinder (22), and a threaded structure is formed on the groove wall of the connecting groove (221); one end of the tension screw (31) is screwed into the connecting groove (221) and is threadedly connected with the steel cylinder (22); and an isolation sleeve (33) is fixedly connected to the steel cylinder (22) and coaxially surrounds the tension screw (31). A cooperating ring (34) is coaxially arranged at the end of the isolation sleeve (33) away from the steel cylinder (22); and a cooperating groove (11) is formed in the formwork (1) for inserting the cooperating ring (34), and the depth of the cooperating groove (11) is smaller than the axial dimension of the cooperating ring (34). A rotation-stopping groove (311) is formed in the side wall of the tension screw (31), and the length direction of the rotation-stopping groove (311) is consistent with the length direction of the tension screw (31); a rotation-stopping block (352) is movably arranged on the isolation sleeve (33) and is used for being inserted into the rotation-stopping groove (311); and a control assembly (35) is arranged on the isolation sleeve (33) and is used for controlling the movement of the rotation-stopping block (352). The control assembly (35) comprises a control valve plate (351) and a transmission rod (353); the control valve plate (351) is hingedly connected with the isolation sleeve (33), the hinge shaft is perpendicular to the axis of the isolation sleeve (33), a torsional spring is connected to the hinge shaft, and the rotation-stopping block (352) is fixedly connected to the control valve plate (351); in a natural state, the control valve plate (351) has a tendency to turn away from the tension screw (31); The cooperating ring (34) is detachably connected with the isolation sleeve (33); a control channel (331) is formed in the isolation sleeve (33) and has a length direction parallel to the length direction of the isolation sleeve (33); a transmission hole (332) is formed between the control channel (331) and the inner cavity of the isolation sleeve (33); the hinge shaft of the control valve plate (351) is located on the hole wall of the transmission hole (332); one end of the transmission rod (353) is fixedly connected with the cooperating ring (34); and the control channel (331) is used for inserting the transmission rod (353).

2. The system of claim 1, wherein: The groove wall of the connecting groove (221) is fixedly connected with a jamming protrusion (2211), the side wall of the tension screw (31) is provided with a jamming recess (312), and when the jamming protrusion (2211) is embedded into the jamming recess (312), the rotation-stopping block (352) is located at the groove opening of the rotation-stopping groove (311).

3. The system of claim 1, wherein: The steel cylinder (22) is provided with a cross-border groove (222) which is communicated with the connecting groove (221) and has the same depth as the connecting groove (221), and the notch of the cross-border groove (222) is communicated with the control channel (331).

4. The system for a mega column formwork according to claim 1, wherein: The fitting ring (34) is provided with an auxiliary hole (341) which is located on the end surface of the fitting ring (34) away from the isolation sleeve (33) at one end and on the inner wall of the fitting ring (34) at the other end.

5. The system for a mega column formwork according to claim 1, wherein: The steel cylinder (22) is provided with a plurality of slot steels (23) which are fixedly connected between every two adjacent steel cylinders (22).

6. A method of constructing the mega column formwork system of claim 3 or 4, characterized in that: The steps are as follows: S1: placing the reinforcing framework (2); S2: inserting the tension screw rod (31) into the isolation sleeve (33) and screwing it into the connecting groove (221), and the tension screw rod (31) is required to be stopped at the angle where the cardon protrusion (2211) is embedded into the cardon recess (312); S3: placing the fitting ring (34) at the end of the isolation sleeve (33), inserting the transmission rod (353) into the control channel (331) without touching the control valve plate (351); S4: erecting the formwork (1), the fitting groove (11) and the fitting ring (34) are matched with each other, the formwork (1) applies a pushing force to the fitting ring (34), the transmission rod (353) pushes the control valve plate (351) to make the rotation stopping block (352) inserted into the rotation stopping groove (311), erecting the support enclose purlin (4) and screwing the tension nut (32); S5: pouring concrete into the space area surrounded by each formwork (1); S6: after the concrete is solidified, the formwork (1) is removed, the fitting ring (34) is taken down, and the tension screw rod (31) is unscrewed; S7: injecting concrete into the control channel (331) through the port of the control channel (331), the concrete enters the connecting groove (221) and the isolation sleeve (33) through the cross-border groove (222) until it is filled, and the concrete at the port of the control channel (331) and the isolation sleeve (33) is leveled, and waiting for solidification.

Images