Construction technology for high-quality and rapid construction of double concrete short columns

Abstract

The present invention discloses a concrete column construction technology, specifically a construction process for high-quality and rapid construction of double concrete short columns. The support formwork adopted by the present invention is diagonally arranged, and the diagonal fixation of the support unit is completed by using a blocking piece to realize the support work of the support unit. Two groups of support areas are arranged in the support frame, and the support side plates are arranged inside the support area. The support unit is arranged along the diagonal of the support area through an elastic telescopic member, so that the support unit can automatically detach from the concrete surface by moving outward along the diagonal when the concrete is solidified and removed, avoiding excessive friction contact with the surface of the concrete column, and ensuring the quality of the concrete column. It solves the problem that the existing concrete column construction method cannot adapt to the simultaneous construction of double concrete columns, and solves the problem that the back ribs cannot be effectively fixed, and the back ribs and side plates are very easy to rub against the surface of the short column during disassembly, damaging the quality of the short column, resulting in poor quality of the concrete column.

Description

Technical Field

[0001] The invention relates to a concrete column construction technology, in particular to a construction process for high-quality and rapid construction of double concrete short columns. Background Art

[0002] There are usually multiple sets of double short column structures in the concrete foundation pedestal structure. This type of double short column structure is very common during the construction process. The distance between two adjacent short columns is generally fifteen to twenty centimeters. The two short columns generally need to be cast at the same time. Ordinary formwork is not easy to install and disassemble later, and the construction quality is difficult to guarantee.

[0003] During the construction of existing concrete columns, the outer formwork is generally used, and the formwork is fixed through back ribs (sometimes equipped with tension bolts). However, this type of structural formwork can only adapt to the construction of a single short column, and cannot adapt to the double short column structure in the foundation pedestal structure. In particular, the back ribs cannot be effectively fixed in the gap between the two short columns. Moreover, during disassembly, the back ribs and side panels are very likely to rub against the surface of the short column, damaging the quality of the short column. Summary of the Invention

[0004] The technical problems to be solved by the present invention are:

[0005] The invention provides a construction method suitable for the simultaneous construction of two concrete columns, which solves the problem that the existing concrete column construction method cannot adapt to the simultaneous construction of two concrete columns, and solves the problem that the back ribs cannot be effectively fixed, and the back ribs and side plates are very likely to rub against the surface of the short columns during disassembly, thereby damaging the quality of the short columns and causing poor quality of the concrete columns.

[0006] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0007] The construction process for high-quality and rapid construction of double concrete short columns uses support formwork, which includes:

[0008] The support frame is provided with a partition plate in the middle of the support frame, which divides the interior of the support frame into two support areas. The top of the support frame is fixedly installed with a lifting ear and the bottom is installed with a fixed ear plate, which is used to be fixedly installed on the ground;

[0009] Support side panels, two groups of support side panels are provided and are respectively located inside the corresponding support areas. Each group of support side panels includes two symmetrically arranged support units. An elastic telescopic member is provided on the outside of the support unit. The free end of the elastic telescopic member is fixed to the support frame or the partition plate. The free end of the support unit is provided with a connecting ear. The connecting ears at the corresponding free ends of the two support units are installed with a blocking member. The blocking member is used to block the free end position of the support unit;

[0010] The construction steps are as follows:

[0011] Step 1: Positioning

[0012] Set up a leveling layer in the foundation pit, ensure that the bottom of the support formwork is sealed and fits on the leveling layer, and lay out the position installation edge line of the support frame and fixed ear plate, and tie the concrete column reinforcement cage within the position installation edge line area;

[0013] Step 2: Formwork hoisting

[0014] Use the lifting equipment to hook the lifting lugs on the top of the support frame and lift the template to the position just above the installation edge of the support frame and the fixed lug plate, and then drop it vertically to the leveling layer;

[0015] Step 3: Template installation

[0016] The corresponding connecting ears of the support unit are connected, fixed and sealed by the sealing piece, and a sealing tape is provided on the contact side of the connecting ear;

[0017] The ear plates are fixed on the leveling layer by anchor bolts, and the leveling layer and the bottom of the supporting side plates are sealed with sealing tape;

[0018] Step 4: Pouring

[0019] Pour concrete into the area enclosed by the supporting side panels, treat the internal concrete by vibrating it, and then perform a curing treatment on the concrete column after it has initially set;

[0020] Step 5: Demolding

[0021] After the strength of the concrete column reaches the design requirements, the sealing piece is loosened, and the supporting unit is reset under the action of the elastic expansion piece, completing the separation from the concrete column;

[0022] The lifting equipment re-hooks the lifting lugs and gradually moves vertically away from the support frame.

[0023] Further preferably, the elastic telescopic part includes two elastic telescopic rods, one end of the two elastic telescopic rods is fixedly installed on the outside of the support unit, and the other end is fixedly installed on the support frame or partition plate. The elastic telescopic rod includes a fixed part and a movable part, and the fixed part and the movable part are flexibly installed by a spring.

[0024] Further preferably, the support formwork also includes an anti-sway component, which includes a fixed plate arranged on the outside of the support frame, the fixed plate and the corresponding fixed column are connected and fixed, and a reel and a servo motor for driving the reel to rotate are installed on the fixed plate, a connecting rope is wound around the reel, and the free end of the connecting rope is connected to the outer wall of the support frame.

[0025] Further preferably, a connecting piece is fixedly installed on the support frame, a connecting slot is provided on the connecting piece, guide groove one, guide groove two and a locking slot are provided on both side walls of the connecting slot, the inlet of guide groove one and the outlet of guide groove two are both open, and the two ends of the locking slot are used to connect the roots of guide groove one and guide groove two.

[0026] Further preferably, the end of the connecting rope is connected to a plug, and a connecting head is installed on the plug for adapting to guide groove 1, guide groove 2 and the locking groove. An elastomer is installed inside the connecting groove and the elastomer is used to abut the end of the plug. The elastomer is an elastic telescopic rod and the free end is a ball head structure. A vertically arranged guide groove is provided on the side of the plug facing the elastomer, and the guide groove and the ball head structure are adapted.

[0027] Further preferably, the locking groove gradually deviates toward the outside and then gradually approaches the inside from top to bottom, and when the bottom of the support frame is flush with the top of the concrete column, the connecting rope and the lower half of the locking groove are arranged vertically.

[0028] Further preferably, in step three, after the installation of the supporting side panels is completed, the following steps are also included: installing a connector at an appropriate height on the side of the supporting side panels, the plug uses the connector to enter the locking groove through the guide groove one, and is temporarily restricted to the locking groove by the elastic body, installing a fixing plate on the leveling layer at the bottom of the foundation pit, and tightening the connecting rope by the servo motor.

[0029] Further preferably, in step five, during the process of gradually vertically adjusting the support frame away from the support frame, the servo motor will drive the reel to gradually release the connecting rope to ensure the verticality of the support frame when it is adjusted and that it does not contact the concrete column. When the bottom of the support frame is flush with the top of the concrete column, the connecting rope and the lower half of the locking groove are arranged vertically, and the servo motor slows down the release of the connecting rope and ensures that the connecting head on the plug moves along the locking groove to the inside of the guide groove 2. As the support frame continues to be adjusted away, the plug and the connecting piece are separated.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The supporting side panels adopted in the present invention are arranged diagonally, and the diagonal fixation of the supporting unit is completed by using the blocking parts to realize the support work of the supporting unit. Two groups of supporting areas are arranged in the supporting frame, and the supporting side panels are arranged inside the supporting area. The supporting unit is arranged along the diagonal of the supporting area through the elastic telescopic parts, so that the supporting unit can automatically detach from the concrete surface by moving outward along the diagonal when the concrete is solidified and removed, avoiding excessive friction contact with the surface of the concrete column, thereby ensuring the quality of the concrete column.

[0032] The inventor found through on-site practice that the support formwork can be quickly assembled and disassembled, but it is easy to cause the support formwork to swing when it is lifted, resulting in collisions between the support formwork and the surface of the concrete column. Therefore, an anti-sway component is set on the outside of the frame to ensure the status effect of the support formwork when it is lifted. After the support formwork is lifted to a height higher than the concrete column elevation, it can also automatically detach.

[0033] Secondly, this device is specially designed for double concrete column structures. When removing the formwork, it first expands outward and then lifts it vertically upward. This is significantly different from the previous support structures that are generally dismantled directly outward, and direct dismantling cannot guarantee the quality of the gaps between the double concrete columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A top view of the overall structure of the present invention;

[0035] Figure 2 It is a structural cross-sectional view of the elastic expansion member of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the support frame of the present invention;

[0037] Figure 4 Schematic diagram of the overall structure of the connector of the present invention;

[0038] Figure 5 A diagram showing the connection relationship between the plug and the connector of the present invention;

[0039] Figure 6 A diagram showing the connection relationship between the connector and the connector of the plug of the present invention;

[0040] Figure 7 This is a diagram showing the position of the connecting rope and the locking groove of the present invention when connected;

[0041] Figure 8 This is a diagram of the position status of the connecting rope and the locking groove of the present invention when they are out of critical position.

[0042] In the figure: 1. Support side plate; 2. Support frame; 21. Connecting piece; 211. Connecting notch; 212. Guide groove 1; 213. Guide groove 2; 214. Locking groove; 215. Elastomer; 4. Partition plate; 5. Lifting ear; 6. Fixed ear plate; 7. Elastic telescopic piece; 71. Elastic telescopic rod; 711. Fixed part; 712. Movable part; 9. Fixed plate; 91. Reel; 92. Servo motor; 93. Connecting rope; 94. Plug; 941. Connecting head; 942. Guide groove; 11. Support unit; 111. Connecting ear; 12. Sealing piece. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0045] Example 1, as Figures 1 to 3 As shown in the figure, the construction process for high-quality and rapid construction of double concrete short columns adopts support formwork, which includes:

[0046] A support frame 2 is provided with a partition plate 4 in the middle of the support frame 2, which divides the interior of the support frame 2 into two support areas. A lifting ear 5 is fixedly installed on the top of the support frame 2 and a fixed ear plate 6 is installed on the bottom. The fixed ear plate 6 is used to be fixedly installed on the ground;

[0047] Support side panels 1, two groups of support side panels 1 are provided and are respectively located inside corresponding support areas. Each group of support side panels 1 includes two symmetrically arranged support monomers 11. An elastic telescopic member 7 is provided on the outside of the support monomer 11. The free end of the elastic telescopic member 7 is fixed to the support frame 2 or the partition plate 4. The free end of the support monomer 11 is provided with a connecting ear 111. The connecting ears 111 at the corresponding free ends of the two support monomers 11 are installed with a blocking member 12 (bolt). The blocking member 12 is used to block the free end position of the support monomer 11;

[0048] The construction steps are as follows:

[0049] Step 1: Positioning

[0050] Set a leveling layer in the foundation pit, ensure that the bottom of the support formwork is sealed and fits on the leveling layer, and release the position installation edge line of the support frame 2 and the fixed ear plate 6, and tie the concrete column reinforcement cage in the position installation edge line area;

[0051] Step 2: Formwork hoisting

[0052] Use the lifting equipment to hook the lifting lug 5 on the top of the support frame 2 and lift the template to the position of the support frame 2 and the fixed lug 6 just above the installation edge, and then drop it vertically to the leveling layer;

[0053] Step 3: Template installation

[0054] The corresponding connecting ears 111 of the supporting unit 11 are connected, fixed and sealed by the sealing member 12, and a sealing tape is provided on the contact side of the connecting ears 111;

[0055] The ear plate 6 is fixed on the leveling layer by anchor bolts, and the leveling layer and the bottom of the supporting side plate 1 are sealed with sealing tape;

[0056] Step 4: Pouring

[0057] Pour concrete into the area enclosed by the supporting side plate 1, treat the internal concrete by vibrating it, and perform a curing treatment on the concrete column after it has initially set;

[0058] Step 5: Demolding

[0059] After the strength of the concrete column reaches the design requirements, the blocking member 12 is removed, and the supporting unit 11 is reset under the action of the elastic member 7 to complete the separation from the concrete column;

[0060] The lifting equipment re-hooks the lifting lug 5 and gradually moves vertically away from the support frame 2.

[0061] Among them, the elastic telescopic part 7 includes two elastic telescopic rods 71, one end of the two elastic telescopic rods 71 ​​is fixedly installed on the outside of the support unit 11, and the other end is fixedly installed on the support frame 2 or the partition plate 4. The elastic telescopic rod 71 includes a fixed part 711 and a movable part 712, and the fixed part 711 and the movable part 712 are flexibly installed by a spring.

[0062] Example 2: Based on the above example, the following improvements are made: Figures 1 to 8 As shown, the support formwork also includes an anti-sway component, which includes a fixed plate 9 arranged on the outside of the support frame 2, the fixed plate 9 and the corresponding fixed column are connected and fixed, and a reel 91 and a servo motor 92 for driving the reel 91 to rotate are installed on the fixed plate 9, a connecting rope 93 is wound around the reel 91, and the free end of the connecting rope 93 is connected to the outer wall of the support frame 2.

[0063] A connecting piece 21 is fixedly installed on the support frame 2, and a connecting slot 211 is provided on the connecting piece 21. Guide groove 1 212, guide groove 213 and locking slot 214 are provided on both side walls of the connecting slot 211. The inlet of guide groove 1 212 and the outlet of guide groove 2 213 are both open, and the two ends of the locking slot 214 are used to connect the roots of guide groove 1 212 and guide groove 2 213.

[0064] A plug 94 is connected to the end of the connecting rope 93, and a connecting head 941 is installed on the plug 94 for adapting to the guide groove 1 212, the guide groove 213 and the locking groove 214. An elastomer 215 is installed inside the connecting groove 211 and the elastomer 215 is used to abut the end of the plug 94. The elastomer 215 is an elastic telescopic rod and the free end is a ball head structure. A vertically arranged guide groove 942 is provided on the side of the plug 94 facing the elastomer 215, and the guide groove 942 is adapted to the ball head structure.

[0065] The locking groove 214 gradually deviates outward from top to bottom and then gradually approaches inward. When the bottom of the support frame 2 is flush with the top of the concrete column, the connecting rope 93 and the lower half of the locking groove 214 are arranged vertically.

[0066] The construction steps are as follows:

[0067] Step 1: Positioning

[0068] Set a leveling layer in the foundation pit, ensure that the bottom of the support formwork is sealed and fits on the leveling layer, and release the position installation edge line of the support frame 2 and the fixed ear plate 6, and tie the concrete column reinforcement cage in the position installation edge line area;

[0069] Step 2: Formwork hoisting

[0070] Use the lifting equipment to hook the lifting lug 5 on the top of the support frame 2 and lift the template to the position of the support frame 2 and the fixed lug 6 just above the installation edge, and then drop it vertically to the leveling layer;

[0071] Step 3: Template installation

[0072] The corresponding connecting ears 111 of the supporting unit 11 are connected, fixed and sealed by the sealing member 12, and a sealing tape is provided on the contact side of the connecting ears 111;

[0073] The ear plate 6 is fixed on the leveling layer by anchor bolts, and the leveling layer and the bottom of the supporting side plate 1 are sealed with sealing tape;

[0074] After the installation of the supporting side panel 1 is completed, the following steps are also included: the connecting piece 21 is installed at an appropriate height on the side of the supporting side panel 1, the plug 94 uses the connecting head 941 to enter the locking groove 214 through the guide groove 212, and is temporarily restricted to the locking groove 214 by the elastic body 215, the fixing plate 9 is installed on the leveling layer at the bottom of the foundation pit, and the connecting rope 93 is tightened by the servo motor 92.

[0075] Step 4: Pouring

[0076] Pour concrete into the area enclosed by the supporting side plate 1, treat the internal concrete by vibrating it, and perform a curing treatment on the concrete column after it has initially set;

[0077] Step 5: Demolding

[0078] After the strength of the concrete column reaches the design requirements, the blocking member 12 is removed, and the supporting unit 11 is reset under the action of the elastic member 7 to complete the separation from the concrete column;

[0079] The lifting equipment re-hooks the lifting lug 5 and gradually moves vertically away from the support frame 2;

[0080] During the process of gradually vertically adjusting away from the support frame 2, the servo motor 92 will drive the reel 91 to gradually release the connecting rope 93 to ensure the verticality of the support frame 2 when adjusting and that it does not contact the concrete column. When the bottom of the support frame 2 is flush with the top of the concrete column, the connecting rope 93 and the lower half of the locking groove 214 are arranged vertically, and the servo motor 92 slows down the release of the connecting rope 93 and ensures that the connecting head 941 on the plug 94 moves along the locking groove 214 to the inside of the guide groove 213, and as the support frame 2 continues to be adjusted away, the plug 94 and the connecting piece 21 are separated.

[0081] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. The construction process of high-quality and rapid construction of double concrete short columns is characterized by: Use support formwork, which includes: A support frame (2), wherein a partition plate (4) is provided in the middle of the support frame (2), and the partition plate (4) divides the interior of the support frame (2) into two support areas. A lifting ear (5) is fixedly installed on the top of the support frame (2), and a fixed ear plate (6) is installed on the bottom. The fixed ear plate (6) is used for being fixedly installed on the ground; Support side panels (1), the support side panels (1) are provided in two groups and are respectively located inside corresponding support areas, each group of support side panels (1) includes two symmetrically arranged support monomers (11), an elastic telescopic member (7) is provided on the outer side of the support monomer (11), the free end of the elastic telescopic member (7) is fixed to the support frame (2) or the partition plate (4), the free end of the support monomer (11) is provided with a connecting ear (111), and a blocking member (12) is installed on the connecting ear (111) at the corresponding free ends of the two support monomers (11), and the blocking member (12) is used to block the free end position of the support monomer (11); The construction steps are as follows: Step 1: Positioning A leveling layer is set in the foundation pit to ensure that the bottom of the support template is sealed and fits on the leveling layer, and the position installation edge line of the support frame (2) and the fixed ear plate (6) is released, and the concrete column reinforcement cage is tied in the position installation edge line area; Step 2: Template hoisting Hook the lifting lug (5) on the top of the support frame (2) with a lifting device to lift the template to the position of the support frame (2) and the fixed lug plate (6) just above the installation edge, and then drop it vertically to the leveling layer; Step 3: Template installation The corresponding connecting ears (111) of the supporting unit (11) are connected, fixed and sealed by a sealing member (12), and a sealing tape is provided on the contact side of the connecting ears (111); The ear plate (6) is fixed on the leveling layer by anchor bolts, and the leveling layer and the bottom of the supporting side plate (1) are sealed by sealing tape; Step 4: Pouring Concrete is poured into the area enclosed by the supporting side plate (1), the internal concrete is treated by vibrating, and the concrete column is cured after initial setting; Step 5: Demolding After the strength of the concrete column reaches the design requirement, the blocking member (12) is loosened, and the supporting unit (11) is reset under the action of the elastic expansion member (7), completing the separation from the concrete column; The lifting equipment is re-hooked onto the lifting lug (5) and gradually adjusted vertically away from the support frame (2); The support formwork further includes an anti-sway component, the anti-sway component including a fixed plate (9) arranged outside the support frame (2), the fixed plate (9) and the corresponding fixed column being connected and fixed, and a reel (91) and a servo motor (92) for driving the reel (91) to rotate are installed on the fixed plate (9), a connecting rope (93) is wound around the reel (91), and the free end of the connecting rope (93) is connected to the outer wall of the support frame (2); A connecting member (21) is fixedly mounted on the support frame (2), and a connecting notch (211) is provided on the connecting member (21). A guide groove 1 (212), a guide groove 2 (213) and a locking groove (214) are provided on both side walls of the connecting notch (211). The inlet of the guide groove 1 (212) and the outlet of the guide groove 2 (213) are both open, and both ends of the locking groove (214) are used to connect the roots of the guide groove 1 (212) and the guide groove 2 (213); The end of the connecting rope (93) is connected to a plug (94), and a connecting head (941) is installed on the plug (94) for adapting to the guide groove 1 (212), the guide groove 2 (213), and the locking groove (214). An elastic body (215) is installed inside the connecting groove (211) and the elastic body (215) is used to abut the end of the plug (94). The elastic body (215) is an elastic telescopic rod and the free end is arranged in a ball head structure. A vertically arranged guide groove (942) is provided on the side of the plug (94) facing the elastic body (215), and the guide groove (942) is adapted to the ball head structure. The locking groove (214) gradually deviates toward the outside from top to bottom and then gradually approaches the inside. When the bottom of the support frame (2) is flush with the top of the concrete column, the connecting rope (93) and the lower half of the locking groove (214) are arranged vertically. In step three, after the support side plate (1) is installed, the following steps are also included: installing the connector (21) at an appropriate height on the side of the support side plate (1), the plug (94) uses the connector (941) to enter the inside of the locking groove (214) through the guide groove (212), and is temporarily restricted in the inside of the locking groove (214) by the elastic body (215), installing the fixing plate (9) on the leveling layer at the bottom of the foundation pit, and tightening the connecting rope (93) by the servo motor (92); In step five, during the process of gradually vertically adjusting the support frame (2), the servo motor (92) drives the reel (91) to gradually release the connecting rope (93), ensuring the verticality of the support frame (2) when adjusting and not contacting the concrete column. When the bottom of the support frame (2) is flush with the top of the concrete column, the connecting rope (93) and the lower half of the locking groove (214) are arranged vertically. The servo motor (92) slows down the release of the connecting rope (93) and ensures that the connector (941) on the plug (94) moves along the locking groove (214) to the inside of the second guide groove (213). As the support frame (2) continues to be adjusted away, the plug (94) and the connector (21) are separated.

2. The construction process for high-quality and rapid construction of double concrete short columns according to claim 1 is characterized in that: The elastic telescopic member (7) comprises two elastic telescopic rods (71), one end of the two elastic telescopic rods (71) is fixedly mounted on the outside of the support unit (11), and the other end is fixedly mounted on the support frame (2) or the partition plate (4), and the elastic telescopic rods (71) comprise a fixed portion (711) and a movable portion (712), and the fixed portion (711) and the movable portion (712) are flexibly mounted via a spring.

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