Integral casting inner formwork system for concrete structure bay window frame plate and its installation and disassembly method

Abstract

The present invention discloses an inner formwork system for integral casting of a bay window frame plate of a concrete structure and an installation and disassembly method thereof, which solves the problem of how to conveniently and with high quality complete the erection and disassembly of the integral casting formwork of the bay window. The top inner formwork for integral casting of a square frame plate of a concrete structure is installed on an upper retractable frame on a box-shaped frame body, and the left and right inner formworks are installed on a frame that can be retracted left and right, and then the box-shaped frame body is placed on the bottom formwork for integral casting of a square frame plate to which the bottom formwork steel bars have been tied, and the top inner formwork and the two side formworks are extended outward, so that the top inner formwork and the two side inner formworks form an inner formwork for integral casting of the frame plate, and after the poured concrete solidifies, the top inner formwork is retracted downward, the two side inner formworks are retracted inward, and the box-shaped frame body with the top inner formwork and the two side inner formworks is taken out from the bay window frame plate. It is simple and convenient to use and can be reused.

Description

Technical Field

[0001] The invention relates to a cantilevered bay window casting template system for a building, in particular to an inner template system for integrally casting a frame plate of a cantilevered bay window with a closed periphery of a concrete structure. Background Art

[0002] In residential buildings, bay windows have become a common form of exterior window structure. In order to meet the requirements of the overall shape of the building's exterior wall, some bay windows are designed to be cantilevered and convex, that is, the bay windows are installed in a square frame plate of a concrete structure cantilevered to the outside of the building with four closed sides, and the square frame plate of the concrete structure is formed by cast-in-place concrete; in on-site construction, the square frame plate of the concrete structure is mostly completed by pouring concrete in steps. The most common method is to first pour the bottom bay window plate of the square frame plate, and then pour the bay window plates on both sides of the square frame plate after the poured concrete has initially solidified, and finally pour the top plate of the square frame plate. This cantilevered The method of casting the frame plate of the cantilevered bay window in steps has the defects of slow construction progress and the inability to accurately grasp the time for removing the molds of each formwork in steps. It is easy to damage the concrete surface of the cast frame plate when removing the formwork, resulting in the problem of low molding quality of the frame plate. In the prior art, there is also a method of casting the frame plate of the cantilevered bay window as a whole by setting up an integral formwork around the bay window, but there is a problem that the erection and disassembly of the entire formwork system, especially the inner formwork, is time-consuming and labor-intensive. Especially when a large number of bay windows need to be cast on site, this problem is particularly prominent. How to conveniently and high-quality complete the erection and disassembly of the integral casting formwork of the bay window has become a technical problem that urgently needs to be solved on the construction site. Summary of the invention

[0003] The invention provides an integral casting inner formwork system for a bay window frame plate of a concrete structure and an installation and disassembly method thereof, which solves the technical problem of how to conveniently and high-quality complete the erection and disassembly of the integral casting formwork of the bay window.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The overall concept of the present invention is as follows: the top inner formwork for integrally casting a square frame plate of a concrete structure is installed on an upper retractable frame body on a box-shaped frame body, the left and right side inner formworks are installed on the retractable frame body, and then the box-shaped frame body is placed on the bottom formwork for integrally casting a square frame plate to which the bottom formwork steel bars have been tied, the top inner formwork is extended upward, and the side formworks are extended outward, so that the top inner formwork and the side inner formworks form the inner formwork for integrally casting a square frame plate of a concrete structure, and then, the steel bars of the side frame plates and the top frame plates are tied, and the top outer formwork and the side outer formworks are installed according to the conventional method, and then the overall concrete casting of the bay window frame plate is carried out, and after the cast concrete is solidified, the top inner formwork is retracted downward, and the side inner formworks are retracted inward, and the box-shaped frame body with the top inner formwork and the side inner formworks is taken out from the bay window frame plate of the cast concrete structure, and installed in the next bay window frame plate to be cast for reuse.

[0006] A concrete structure bay window frame panel integral casting inner formwork system comprises a tic-tac-toe steel pipe front frame and a tic-tac-toe steel pipe rear frame, the tic-tac-toe steel pipe front frame and the tic-tac-toe steel pipe rear frame are arranged at equal intervals and parallel to each other in the front-to-back direction, two upper connecting rods and two lower connecting rods parallel to each other are fixedly arranged between the tic-tac-toe steel pipe front frame and the tic-tac-toe steel pipe rear frame, the tic-tac-toe steel pipe front frame, the two upper connecting rods and the two lower connecting rods parallel to each other form a box-shaped frame body, and an upper telescopic rod is movably arranged in the two vertical pipe top ports of the tic-tac-toe steel pipe front frame and the two vertical pipe top ports of the tic-tac-toe steel pipe rear frame, and the four upper telescopic rods are fixedly arranged between the four upper telescopic rods. A bay window top plate casting template is fixedly connected between the top ends of the rods; a left telescopic rod is movably provided in the left ends of the two horizontal tubes of the front row of well-shaped steel pipe frames and the left ends of the two horizontal tubes of the rear row of well-shaped steel pipe frames, and a bay window left side frame plate casting template is fixedly connected between the left ends of the four left telescopic rods; a right telescopic rod is movably provided in the right ends of the two horizontal tubes of the front row of well-shaped steel pipe frames and the right ends of the two horizontal tubes of the rear row of well-shaped steel pipe frames, and a bay window right side frame plate casting template is fixedly connected between the right ends of the four right telescopic rods; an L-shaped left angle steel bar is welded on the top end surface of the bay window left side frame plate casting template, and an L-shaped right angle steel bar is welded on the top end surface of the bay window right side frame plate casting template.

[0007] An upper U-shaped bracket is fixedly connected to the top of the upper telescopic rod, a square steel bar is arranged in the upper U-shaped bracket, a hand pull ring is arranged on the inner side of the square steel bar, the outer side of the square steel bar is fixedly connected to the bay window top plate casting template, telescopic rod pin through holes are evenly arranged on the lower end rod body of the upper telescopic rod, vertical pipe pin through holes are evenly arranged on the pipe wall of the upper end of the vertical pipe of the cross-shaped steel pipe front row frame, and pins are connected between the telescopic rod pin through holes and the vertical pipe pin through holes.

[0008] A method for installing and disassembling an inner formwork system for integrally casting a bay window frame plate of a concrete structure, comprising a bay window bottom frame plate casting formwork and a concrete precast pad, wherein a herringbone-shaped steel bar support frame is pre-embedded in the concrete precast pad, and characterized by the following steps:

[0009] The first step is to complete the binding work of the bottom formwork reinforcement and the frame plate side plate reinforcement on the bottom frame plate casting formwork of the bay window;

[0010] The second step is to position and place four prefabricated concrete pads on the casting template of the bottom frame plate of the bay window, and then place the box-shaped frame body between the steel bars of the two frame plate side plates, so that the bottom ends of the four columns of the box-shaped frame body are placed on the prefabricated concrete pads, and the top steel bars of the s-shaped steel bar support frame are inserted into the corresponding bottom ports of the columns;

[0011] Step 3: Extend the four left telescopic rods to the left to position the casting template of the frame plate on the left side of the bay window at the casting position of the frame plate. Insert the pins between the corresponding telescopic rod pin through holes and the vertical pipe pin through holes at the casting positioning position to position and fix the casting template of the frame plate on the left side of the bay window. Use the same method to position and fix the casting template of the frame plate on the right side of the bay window.

[0012] Step 4: Raise the four upper telescopic rods to align the top plate casting template of the bay window with the top horizontal plate of the L-shaped left angle steel bar and the top horizontal plate of the L-shaped right angle steel bar, and insert the pins between the corresponding telescopic rod pin through holes and the riser pin through holes at the casting positioning position to position and fix the top plate casting template of the bay window;

[0013] Step 5: Set movable insert strips at the lower end of the casting template of the left frame plate of the bay window and the lower end of the casting template of the right frame plate of the bay window to complete the installation of the integral casting inner template system of the bay window frame plate;

[0014] Step 6: On the bay window top plate casting template, complete the reinforcement binding work of the bay window top frame plate, install the outer casting template of the frame plates on both sides of the bay window, and then cast the overall concrete of the bay window frame plate;

[0015] Step 7. After the poured concrete solidifies, pull out the pins, and retract the top plate casting template of the bay window downward, retract the left frame plate casting template of the bay window to the right, and retract the right frame plate casting template of the bay window to the left by pulling the hand pull ring provided on the inner side of the square steel bar, and remove the movable plug strips provided at the lower ends of the left frame plate casting template of the bay window and the lower ends of the right frame plate casting template of the bay window respectively;

[0016] Step 8. Cut off the S-shaped steel support frame, and let the box-shaped frame fall down, so that the top horizontal plate of the L-shaped left angle steel bar and the top horizontal plate of the L-shaped right angle steel bar are separated from the cast frame top plate, and the box-shaped frame is removed from the cast integral bay window frame plate.

[0017] The invention has low cost, is simple and convenient to use and can be reused, which not only ensures the casting quality of the bay window closed frame, but also saves the installation and disassembly time of the bay window integral casting template, and is particularly suitable for the bay window construction of high-rise buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the box-shaped frame body of the present invention;

[0019] Figure 2 It is a diagram showing the matching relationship between the box-shaped frame body and the inner template of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the present invention when the integral frame plate of the bay window is cast;

[0021] Figure 4 It is a diagram showing the matching relationship between the vertical tube and the telescopic rod 5 in the box-shaped frame body of the present invention;

[0022] Figure 5 It is a diagram of the coordination relationship between the horizontal tube in the box-shaped frame body and the left and right telescopic rods;

[0023] Figure 6 This is a structural diagram of the integral frame plate of the bay window that has been cast on the shear wall. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings:

[0025] A concrete structure bay window frame panel integral casting inner formwork system, the inner formwork system is used in conjunction with a conventional bay window frame panel concrete external casting formwork to complete the integral casting of the bay window frame panel, comprising a well-shaped steel pipe front frame 1 and a well-shaped steel pipe rear frame 2, the well-shaped steel pipe front frame 1 and the well-shaped steel pipe rear frame 2 are arranged at equal intervals and parallel to each other in the front and rear directions, two upper connecting rods 3 and two lower connecting rods 4 parallel to each other are fixedly arranged between the well-shaped steel pipe front frame 1 and the well-shaped steel pipe rear frame 2, The frame 1, the well-shaped steel pipe rear frame 2, two upper connecting rods 3 parallel to each other and two lower connecting rods 4 parallel to each other form a box-shaped frame body. An upper telescopic rod 5 is movably arranged in the top ports of the two vertical pipes of the well-shaped steel pipe front frame 1 and the two vertical pipes of the well-shaped steel pipe rear frame 2. A floating window top plate casting template 8 is fixedly connected between the top ends of the four upper telescopic rods 5, so that the floating window top plate casting template 8 can be extended upward and retracted downward; in the left ports of the two horizontal pipes of the well-shaped steel pipe front frame 1 and the two horizontal pipes of the well-shaped steel pipe rear frame 2 In each port, a left telescopic rod 6 is movably provided, and a left frame plate casting template 9 of the bay window is fixedly connected between the left ends of the four left telescopic rods 6, so that the left frame plate casting template 9 of the bay window can be extended to the left and retracted to the right; in the right ports of the two horizontal tubes of the well-shaped steel pipe front frame 1 and the right ports of the two horizontal tubes of the well-shaped steel pipe rear frame 2, a right telescopic rod 7 is movably provided, and a right frame plate casting template 10 of the bay window is fixedly connected between the right ends of the four right telescopic rods 7, so that the right frame plate casting template 10 of the bay window can be extended to the right and retracted to the left. Return; an L-shaped left angle steel bar 11 is welded on the top surface of the left side frame plate casting template 9 of the bay window, and an L-shaped right angle steel bar 12 is welded on the top surface of the right side frame plate casting template 10 of the bay window; the box-shaped frame body serves as the inner core, and the three frame plate casting templates thereon are extended out to serve as the inner template for casting the bay window frame plate, and cooperate with the outer template to complete the overall casting of the bay window frame plate; after the overall casting of the bay window frame plate is completed, the three frame plate casting templates are retracted to shrink the inner template system and reduce the volume, so as to facilitate removal from the cast frame plate for recycling.

[0026] An upper U-shaped bracket 16 is fixedly connected to the top of the upper telescopic rod 5, a square steel bar 20 is arranged in the upper U-shaped bracket 16, a hand pull ring 21 is arranged on the inner side of the square steel bar 20, and the outer side of the square steel bar 20 is fixedly connected to the bay window top plate casting template 8, and telescopic rod pin through holes 17 are evenly arranged on the lower end rod body of the upper telescopic rod 5, and vertical pipe pin through holes 18 are evenly arranged on the pipe wall of the vertical pipe upper end of the cross-shaped steel pipe front frame 1, and a pin 19 is connected between the telescopic rod pin through hole 17 and the vertical pipe pin through hole 18; only two telescopic rod pin through holes 17 can be set, one of which is used for transmission in the working state after being extended, and the other is used for connection when the telescopic rod is retracted into the vertical pipe cavity.

[0027] A method for installing and disassembling an inner formwork system for integrally casting a bay window frame plate of a concrete structure, comprising a bay window bottom frame plate casting formwork 13 and a concrete prefabricated pad 14, wherein a zigzag steel bar support frame 15 is pre-embedded in the concrete prefabricated pad 14, characterized by the following steps:

[0028] The first step is to complete the binding work of the bottom template steel bars and the frame plate side plate steel bars on the bottom frame plate casting template 13 of the bay window;

[0029] The second step is to position and place four prefabricated concrete pads 14 on the bottom frame plate casting template 13 of the bay window, and then place the box-shaped frame body between the two frame plate side plate steel bars, so that the bottom ends of the four columns of the box-shaped frame body are correspondingly placed on the prefabricated concrete pads 14, and the top steel bars of the s-shaped steel bar support frame 15 are inserted into the corresponding bottom ports of the columns;

[0030] Step 3: Extend the four left telescopic rods 6 to the left to position the left frame plate casting template 9 of the bay window at the frame plate casting position, insert the pin 19 between the corresponding telescopic rod pin through hole 17 and the riser pin through hole 18 at the casting positioning position, and position and fix the left frame plate casting template 9 of the bay window; use the same method to position and fix the right frame plate casting template 10 of the bay window;

[0031] Step 4: Raise the four upper telescopic rods 5 to align the top plate casting template 8 of the bay window with the top horizontal plate of the L-shaped left angle steel bar 11 and the top horizontal plate of the L-shaped right angle steel bar 12, and insert the pins between the corresponding telescopic rod pin through holes and the riser pin through holes at the casting positioning position to position and fix the bay window top plate casting template 8;

[0032] Step 5: Set movable insert strips at the lower end of the left frame plate casting template 9 of the bay window and the lower end of the right frame plate casting template 10 of the bay window to complete the installation of the integral casting inner template system of the bay window frame plate;

[0033] Step 6: On the bay window top plate casting template 8, complete the reinforcement binding work of the bay window top frame plate, install the installation of the outer casting template of the frame plates on both sides of the bay window, and then cast the overall concrete of the bay window frame plate;

[0034] Step 7. After the poured concrete solidifies, pull out the pin 19, and retract the bay window top plate casting template 8 downward, retract the bay window left frame plate casting template 9 to the right, and retract the bay window right frame plate casting template 10 to the left by pulling the hand pull ring 21 provided on the inner side of the square steel bar 20, and remove the movable plug strips provided at the lower ends of the bay window left frame plate casting template 9 and the lower ends of the bay window right frame plate casting template 10 respectively;

[0035] The eighth step is to cut off the S-shaped steel bar support frame 15, and the box-shaped frame body falls, so that the top horizontal plate of the L-shaped left angle steel bar 11 and the top horizontal plate of the L-shaped right angle steel bar 12 are separated from the cast frame top plate, and the box-shaped frame body is taken out from the cast integral bay window frame plate.

Claims

1. A concrete structure bay window frame integral casting inner formwork system, comprising a well-shaped steel tube front frame (1) and a well-shaped steel tube rear frame (2), the well-shaped steel tube front frame (1) and the well-shaped steel tube rear frame (2) are arranged at equal intervals and parallel to each other in the front-to-back direction, two upper connecting rods (3) and two lower connecting rods (4) parallel to each other are fixedly arranged between the well-shaped steel tube front frame (1) and the well-shaped steel tube rear frame (2), the well-shaped steel tube front frame (1), the well-shaped steel tube rear frame (2), the two upper connecting rods (3) and the two lower connecting rods (4) parallel to each other form a box-shaped frame body, characterized in that: An upper telescopic rod (5) is movably disposed at the top ends of the two vertical tubes of the well-shaped steel tube front frame (1) and the top ends of the two vertical tubes of the well-shaped steel tube rear frame (2), and a floating window top plate casting template (8) is fixedly connected between the top ends of the four upper telescopic rods (5); a left telescopic rod (6) is movably disposed at the left ends of the two horizontal tubes of the well-shaped steel tube front frame (1) and the left ends of the two horizontal tubes of the well-shaped steel tube rear frame (2), and a floating window left frame is fixedly connected between the left ends of the four left telescopic rods (6). A frame plate casting template (9); a right telescopic rod (7) is movably arranged in the right ends of the two horizontal tubes of the crisscross steel pipe front frame (1) and the right ends of the two horizontal tubes of the crisscross steel pipe rear frame (2); a right frame plate casting template (10) of the bay window is fixedly connected between the right ends of the four right telescopic rods (7); an L-shaped left angle steel bar (11) is welded on the top end surface of the left frame plate casting template (9) of the bay window, and an L-shaped right angle steel bar (12) is welded on the top end surface of the right frame plate casting template (10) of the bay window.

2. The integral casting inner formwork system for the concrete structure bay window frame plate according to claim 1 is characterized in that: An upper U-shaped bracket (16) is fixedly connected to the top of the upper telescopic rod (5), a square steel bar (20) is arranged in the upper U-shaped bracket (16), a hand pull ring (21) is arranged on the inner side of the square steel bar (20), and the outer side of the square steel bar (20) is fixedly connected to the bay window top plate casting template (8), and telescopic rod pin through holes (17) are evenly spaced on the lower end rod body of the upper telescopic rod (5), and vertical pipe pin through holes (18) are evenly spaced on the pipe wall of the vertical pipe of the cross-shaped steel pipe front frame (1), and a pin (19) is inserted between the telescopic rod pin through hole (17) and the vertical pipe pin through hole (18).

3. A method for installing and disassembling a concrete structure bay window frame plate integral casting inner formwork system as claimed in claim 2, comprising a bay window bottom frame plate casting formwork (13) and a concrete precast pad (14), wherein a zigzag steel bar support frame (15) is pre-embedded in the concrete precast pad (14), It is characterized by the following steps: The first step is to complete the binding work of the bottom formwork reinforcement and the frame plate side plate reinforcement on the bottom frame plate casting formwork (13) of the bay window; Step 2: Position and place four prefabricated concrete pads (14) on the bottom frame plate casting template (13) of the bay window, then place the box-shaped frame body between the two frame plate side plate steel bars, so that the bottom ends of the four columns of the box-shaped frame body are correspondingly placed on the prefabricated concrete pads (14), and the top steel bars of the splayed steel bar support frame (15) are inserted into the corresponding bottom ports of the columns; Step 3: Extend the four left telescopic rods (6) to the left to position the left frame plate casting template (9) of the bay window at the frame plate casting position, insert the pin (19) between the corresponding telescopic rod pin through hole (17) and the riser pin through hole (18) at the casting positioning position, and position and fix the left frame plate casting template (9) of the bay window; use the same method to position and fix the right frame plate casting template (10) of the bay window; Step 4: Raise the four upper telescopic rods (5) upwards to align the top horizontal plate of the bay window top plate casting template (8) with the top horizontal plate of the L-shaped left angle steel bar (11) and the top horizontal plate of the L-shaped right angle steel bar (12), insert the pins between the corresponding telescopic rod pin through holes and the riser pin through holes at the casting positioning position, so that the bay window top plate casting template (8) is positioned and fixed; Step 5: A movable insert strip is respectively arranged at the lower end of the left frame plate casting template (9) of the bay window and the lower end of the right frame plate casting template (10) of the bay window, so as to complete the installation of the integral casting inner template system of the bay window frame plate; Step 6: On the bay window top plate casting template (8), complete the steel bar binding work of the bay window top frame plate, install the outer casting templates of the frame plates on both sides of the bay window, and then cast the entire bay window frame plate with concrete; Step 7: After the poured concrete solidifies, the pin (19) is pulled out, and the hand pull ring (21) provided on the inner side of the square steel bar (20) is pulled to retract the top plate casting template (8) of the bay window downward, retract the left frame plate casting template (9) of the bay window right side casting template (10) of the bay window left side casting template, and remove the movable plug strips provided at the lower end of the left frame plate casting template (9) of the bay window and the lower end of the right frame plate casting template (10) of the bay window respectively; Step 8: Cut off the scissor-shaped steel bar support frame (15), and the box-shaped frame body falls, so that the top horizontal plate of the L-shaped left angle steel bar (11) and the top horizontal plate of the L-shaped right angle steel bar (12) are separated from the cast frame top plate, and the box-shaped frame body is taken out from the cast integral bay window frame plate.

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