A construction method for an integral longitudinally sliding rigid side form

Abstract

The present invention relates to the field of bridge construction methods, and specifically discloses a construction method for an integral longitudinally sliding rigid side form, including: track installation; hoisting trolley; hoisting formwork; trolley locking; transverse positioning; longitudinal positioning; formwork assembly; trolley reset; on-site inspection; demoulding and other steps. The track in this method is installed on the support through the support bottom cross beam. When the formwork is closed, the sliding trolley is locked with the support bottom cross beam through the trolley locking device, and an anti-overturning safety buckle is also arranged on the sliding trolley, which can lock the side form and the sliding trolley with each other during movement to prevent overturning, making the transfer of the formwork safer. And by setting a transverse jack and a longitudinal jack, the side formwork can move in two directions when the formwork is closed, facilitating the closing of the formwork.

Description

Technical Field

[0001] The invention belongs to the field of bridge construction methods, and particularly relates to a construction method for an integral longitudinally sliding rigid side formwork. Background Art

[0002] During the process of bridge construction, a large number of cast-in-place simply supported beams and box girders are required. The existing cast-in-place simply supported beams basically use bamboo plywood as the main material for formwork, and a large number of square timbers and tie rods are needed for reinforcement. Moreover, during assembly, hoisting equipment and a large number of manpower are required for installation. This not only has a long construction period, complex operation with high difficulty and high risk, but also the hoisting equipment is not convenient to arrange and install in some specific environments, resulting in low work efficiency.

[0003] In the patent document with the application number "2022112757869", a method for transporting formwork for the slip form construction of railway simply supported beams is disclosed, which includes: measuring and positioning the slip form track; accurately positioning and fixing the position of the slip form track at the position corresponding to the box girder flange on the support of the next-span box girder according to the measured setting-out; separating the box girder formwork assembly from the beam body for formwork lowering; completing the transportation with the aid of a trolley. The trolley includes a support platform and pulleys at the four corners of the bottom of the support platform, and a winch pulls the trolley along the slip form track to move to the position of the formwork of the next-span box girder; jacking up the box girder formwork assembly for formwork raising; after the trolley together with the box girder formwork assembly reaches the designated position of the next-span box girder, rotating the bottom support screw rod to jack up the formwork to the design elevation, and pulling out the trolley under the box girder formwork assembly; steps such as transporting the next block of box girder formwork assembly, etc. This method has the advantages of convenient and fast operation, strong transportation stability, etc. compared with the traditional formwork construction method for cast-in-place simply supported beams. However, the method in the comparative document lacks protective measures when the trolley moves and when the formwork is lifted and lowered, and lacks the corresponding device for the transverse formwork closing action, which makes it easy to have problems such as vehicle body displacement, rollover and inconvenient formwork closing during formwork closing and mold movement.

[0004] The disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this patent application, the above background art should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0005] The purpose of the present invention is to provide a construction method for an integral longitudinally sliding rigid side formwork, so as to overcome the defects that the vehicle body is prone to slipping or rollover, with high risk, and inconvenient transverse formwork closing during the slip form construction of simply supported beams.

[0006] To achieve the above purpose, the present invention provides a construction method for an integral longitudinally sliding rigid side formwork, including the following steps:

[0007] S1. Track Installation: Measure and set out lines on the box girder support. Weld the support bottom cross beam on the support according to the set - out position, and weld the track on the support bottom cross beam so that the direction of the track is perpendicular to the direction of the support bottom cross beam;

[0008] S2. Hoisting the Trolley: Hoist the sliding trolley onto the track;

[0009] S3. Hoisting the Formwork: Hoist the pre - assembled side formwork onto the sliding trolley, and lock the side formwork and the sliding trolley to each other through the anti - overturning safety buckle. Use external force to drive the sliding trolley to transport the side formwork to the corresponding form - closing position;

[0010] S4. Trolley Locking: Lock the sliding trolley and the support bottom cross beam to each other through the trolley locking device;

[0011] S5. Transverse Movement and Alignment: Install a transverse jack on the trolley, appropriately loosen the anti - overturning safety buckle, and use the transverse jack to move the side formwork transversely to the alignment position;

[0012] S6. Longitudinal Movement and Alignment: Install a longitudinal jack on the support bottom cross beam, fully open the anti - overturning safety buckle, and use the longitudinal jack to lift the side formwork to the installation height;

[0013] S7. Assembling the Formwork: Install formwork tie rods, diagonal braces, longitudinal through - beams and formwork connection bolts;

[0014] S8. Trolley Reset: Release the trolley locking device, make the sliding trolley return to the initial position, and continue to transport and install the formwork for the next segment;

[0015] S9. On - site Inspection: After the formwork system is installed, conduct an overall inspection on it. If there are weak positions for reinforcement, conduct on - site temporary reinforcement treatment, and remove the longitudinal jack and the transverse jack;

[0016] S10. Demoulding: Move the sliding trolley to the corresponding position, lock the trolley locking device, remove the formwork connection bolts, tie rods, and diagonal braces. First, adjust the longitudinal jack to make the formwork completely fall on the sliding trolley, pre - tighten the anti - overturning safety buckle, use the transverse jack to move the side formwork outward transversely to a certain demoulding gap, install the anti - overturning safety buckle, release the trolley locking device, and use external force to drive the sliding trolley to transport the side formwork to the hoisting position;

[0017] The supporting bottom cross beam includes two first channel steels. The backs of the two first channel steels are welded to each other through a first connecting block, so that a first guiding groove is formed between the two first channel steels. The direction of the first guiding groove is perpendicular to the direction of the track. A plurality of transverse beams are arranged on the sliding trolley. The transverse beam is composed of two second channel steels. The two second channel steels are welded to each other through a second connecting block, so that a second guiding groove is formed between the two second channel steels. The direction of the second guiding groove is consistent with the direction of the first guiding groove. The trolley locking device includes a tensioning screw, a flange nut and an anti-loosening nut. The tensioning screw penetrates through the first guiding groove and the second guiding groove at the same time. The flange nuts are installed at both ends of the tensioning screw, and the flange surfaces of the flange nuts are respectively abutted against the supporting bottom cross beam and the transverse beam. The anti-loosening nuts are installed at both ends of the tensioning screw and are abutted against the flange nuts.

[0018] A transverse supporting beam is arranged on the back of the side formwork. A longitudinal supporting beam is arranged below the transverse supporting beam. The longitudinal supporting beam is perpendicular to the transverse supporting beam. Frame beams are arranged on both sides of the trolley. Wheels are installed on the frame beams. The two ends of the transverse jack are respectively abutted against the side surface of the frame beam and the side surface of the longitudinal supporting beam. A clamping groove is arranged in the anti-overturning safety buckle. The clamping groove is perpendicular to the traveling direction of the wheels. The transverse supporting beam can be stuck in the clamping groove and slide along the clamping groove.

[0019] Preferably, in the above technical solution, in step S1, the box girder support is self-built on the construction site. It is required that the stiffness of the box girder support should ensure that no settlement and instability occur during the in-situ casting of the beam body.

[0020] Preferably, in the above technical solution, in step S8, the plate length of each section of the formwork should be controlled within 4 meters to 4.3 meters.

[0021] Preferably, in the above technical solution, in step S10, the demoulding gap is 50 mm.

[0022] Preferably, in the above technical solution, in steps S3 and S10, using external force means pushing by manpower or towing by a winch.

[0023] Preferably, in the above technical solution, the anti-overturning safety buckle includes a base and a buckle plate. The base is fixedly installed on the top of the frame beam. A clamping groove is arranged on the base. The buckle plate is connected to the base through bolts. A wear-resistant coating is applied to the bottom of the buckle plate.

[0024] Preferably, in the above technical solution, a plurality of snap rings are welded at the bottom of the side formwork. The telescopic end of the longitudinal jack can extend into the snap ring and be limited.

[0025] Compared with the existing technology, the present invention has the following beneficial effects:

[0026] 1. In the integral longitudinal sliding rigid side form construction method of the present invention, the track is installed on the bracket through the supporting bottom cross beam. When the sliding trolley is closing the form, it is locked with the supporting bottom cross beam through the trolley locking device. And an anti-overturning safety buckle is also arranged on the sliding trolley, which can lock the side form and the sliding trolley with each other during movement to prevent overturning, making the transfer of the form more safe. And by setting the transverse jack and the longitudinal jack, the side form can move in two directions during form closing, which is convenient for form closing.

[0027] 2. When the bolt of the anti-overturning safety buckle of the present invention is tightened, the buckle and the clamping seat can clamp the transverse support beam of the side form. When the bolt is not fully tightened, the friction between the buckle and the transverse support beam is weakened. Through the push of the transverse jack, the side form can generate a transverse displacement, and the mold will not generate a transverse side tilt during movement; a wear-resistant coating is applied to the bottom of the buckle, which can reduce the wear degree after the transverse support beam moves and improve the durability of the parts.

[0028] 3. The supporting bottom cross beam and the transverse beam of the present invention are both welded by two channel steels back to back, and the first guiding groove and the second guiding groove can be formed through the corresponding connecting blocks. The end of the guiding groove can extend outwards from the end of the supporting bottom cross beam and the transverse beam to form a notch, so as to facilitate the installation of the trolley locking device. After the tensioning screw is installed with the flange nut and the anti-loosening nut at the lower end, it can be inserted into the guiding groove from the notch, making the installation more convenient.

[0029] 4. A plurality of snap rings are welded to the bottom of the side form of the present invention, which can play a role in limiting the end of the longitudinal jack, making the use process of the longitudinal jack safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the flow chart of the integral longitudinal sliding rigid side form construction method of the present invention.

[0031] Figure 2 is the front view of the sliding trolley and the side form after installation.

[0032] Figure 3 is Figure 2 the partial enlarged view A in

[0033] Figure 4 is the side view of the sliding trolley.

[0034] Figure 5 is the installation diagram of the longitudinal jack and the transverse jack during form closing.

[0035] Figure 6It is a schematic installation diagram of the longitudinal jack and the transverse jack during demolding.

[0036] Description of main reference numerals:

[0037] 100 - Box girder support, 110 - Track, 120 - Side formwork, 130 - Transverse support beam, 140 - Longitudinal support beam, 150 - Snap ring;

[0038] 200 - Support bottom cross beam, 210 - First channel steel;

[0039] 300 - Sliding trolley, 310 - Transverse beam, 311 - Second channel steel, 320 - Frame beam, 330 - Wheel;

[0040] 400 - Anti - tipping safety buckle, 410 - Base, 420 - Card slot, 430 - Clamping plate, 440 - Wear - resistant coating;

[0041] 500 - Trolley locking device, 510 - Tensioning screw, 520 - Flange nut, 530 - Anti - detachment nut;

[0042] 600 - Transverse jack;

[0043] 700 - Longitudinal jack. Specific implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top part", "bottom part", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0046] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, "greater than", "less than", "exceeding", etc. are understood as not including the corresponding number, and "above", "below", "within", etc. are understood as including the corresponding number. If terms such as "first", "second", "third" are described, they are only for descriptive purposes and to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following will describe the embodiments according to the overall structure of the present invention.

[0048] As Figure 1 shown, the integral longitudinal sliding rigid side form construction method in this embodiment includes the following steps:

[0049] S1. Track installation: Measure and lay out the lines on the box girder support 100, weld the support bottom cross beam 200 on the support according to the layout position, and weld the track 110 on the support bottom cross beam 200 so that the direction of the track 110 is perpendicular to the direction of the support bottom cross beam 200; among them, the box girder support 100 is self-built on the construction site, and it is required that the stiffness of the box girder support 100 should ensure that no settlement and instability occur during the in-situ casting of the beam body;

[0050] S2. Hoisting the trolley: Hoist the sliding trolley 300 onto the track 110;

[0051] S3. Hoisting the formwork: Hoist the pre-assembled side form onto the sliding trolley 300, and lock the side form and the sliding trolley 300 to each other through the anti-overturning safety buckle 400, and use an external force (referring to pushing by manpower or towing by a winch) to drive the sliding trolley 300 to transport the side form to the corresponding formwork closing position;

[0052] S4. Trolley locking: Lock the sliding trolley 300 and the support bottom cross beam 200 to each other through the trolley locking device 500;

[0053] S5. Transverse movement and positioning: Install a transverse jack 600 on the trolley, and use the transverse jack 600 to position the side form transversely;

[0054] S6. Longitudinal movement and positioning: Install longitudinal jacks 700 on the support bottom cross beam 200, open the anti-overturning safety buckle 400, and use the longitudinal jacks 700 to jack the side formwork to the installation height.

[0055] S7. Assemble the formwork: Install formwork tie rods, scissors braces, longitudinal through beams and formwork connection bolts to assemble the side formworks 120 with each other.

[0056] S8. Reset the trolley: Release the trolley locking device 500 to make the sliding trolley 300 retract to the initial position, and continue to transport and install the formwork for the next segment. The plate length of each segment of the formwork shall be controlled between 4 meters and 4.3 meters.

[0057] S9. On-site inspection: After the formwork system is installed, conduct an overall inspection on it. If there are weak reinforcement positions, conduct on-site temporary reinforcement treatment, and remove the longitudinal jacks 700 and transverse jacks 600.

[0058] S10. Demoulding: Move the sliding trolley 300 to the corresponding position, lock the trolley locking device 500, remove the formwork connection bolts, tie rods and scissors braces. First, adjust the longitudinal jacks 700 to make the formwork completely rest on the sliding trolley 300, pre-tighten the anti-overturning safety buckle 400, use the transverse jacks 600 to horizontally move the side formwork 120 outwards to a demoulding gap of about 50 mm, install the anti-overturning safety buckle 400, release the trolley locking device 500, and use external force (referring to manual pushing or winch traction) to drive the sliding trolley 300 to transport the side formwork to the hoisting position.

[0059] As Figures 2 to 4As shown, the supporting bottom crossbeam 200 used includes two first channel steels 210. The backs of the two first channel steels 210 are welded to each other through first connection blocks, forming a first guiding groove between the two first channel steels 210. The two ends of the first guiding groove extend outward from the two ends of the supporting bottom crossbeam 200 to form notches. The direction of the first guiding groove is perpendicular to the direction of the track 110; several crossbeams 310 are welded on the sliding trolley 300. The crossbeam 310 is composed of two second channel steels 311. The two second channel steels 311 are welded to each other through second connection blocks, forming a second guiding groove between the two second channel steels 311. The two ends of the second guiding groove extend outward from the ends of the crossbeam 310 to form notches. The direction of the second guiding groove is consistent with the direction of the first guiding groove; when the sliding trolley 300 moves to the specified position, the first guiding groove and the second guiding groove can just be aligned with each other. The trolley locking device 500 includes a tensioning screw 510, a flange nut 520 and an anti-loosening nut 530. The tensioning screw 510 can be horizontally inserted into the first guiding groove and the second guiding groove from the notches of the first guiding groove and the second guiding groove and penetrate through both of them. The flange nuts 520 are installed at both ends of the tensioning screw 510, and the flange surfaces of the flange nuts 520 are respectively abutted against the supporting bottom crossbeam 200 and the crossbeam 310. The anti-loosening nuts 530 are installed at both ends of the tensioning screw 510 and are abutted against the flange nuts 520. When the operator installs the tensioning screw 510, the flange nuts 520 and the anti-loosening nuts 530 can be pre-installed. After the tensioning screw 510 is installed in place, it is lifted upward so that the flange surface of the lower flange nut 520 first fits against the bottom surface of the supporting bottom crossbeam 200, then the upper flange nut 520 is tightened, and finally the two anti-loosening nuts 530 are tightened.

[0060] A transverse support beam 130 is welded to the back of the side form. A longitudinal support beam 140 is welded below the transverse support beam 130. The longitudinal support beam 140 is perpendicular to the transverse support beam 130; Frame beams 320 are arranged on both sides of the trolley, and wheels 330 are installed on the frame beams 320; A plurality of snap rings 150 are welded to the bottom of the side form. The telescopic end of the longitudinal jack 700 can extend into the snap ring 150 and be limited.

[0061] The overturning safety buckle includes a base 410 and a buckle plate 430. The base 410 is fixedly installed on the top of the frame beam 320. A clamping groove 420 is formed on the base 410. The clamping groove 420 is perpendicular to the traveling direction of the wheel 330. The transverse support beam 130 can be stuck in the clamping groove 420 and slide along the clamping groove 420. The buckle plate 430 is connected to the base 410 through bolts, and a wear-resistant coating 440 is applied to the bottom of the buckle plate 430.

[0062] As Figure 5As shown, when lateral movement for mold clamping is required, the lateral jack 600 is installed between the side of the longitudinal support beam 140 away from the pouring area and the corresponding side frame beam 320. At this time, the bolts on the buckle plate 430 need to be pre-loosened, and then the lateral jack 600 is started so that its two ends are respectively abutted against the surface of the frame beam 320 and the side surface of the longitudinal support beam 140, and the side mold moves towards the pouring area; As Figure 6 shown, when lateral movement for mold release is required, the bolts on the buckle plate 430 need to be pre-tightened. The lateral jack 600 is installed between the side of the longitudinal support beam 140 close to the pouring area and the corresponding side frame beam 320, and then the jack is started so that its two ends are respectively abutted against the side surface of the frame beam 320 and the side surface of the longitudinal support beam 140, and the side mold moves in the opposite direction of the pouring area.

[0063] In summary, in the integral longitudinal sliding rigid side mold construction method of this embodiment, the track 110 is installed on the support through the support bottom cross beam 200. When the sliding trolley 300 is in mold clamping, it is locked with the support bottom cross beam 200 through the trolley locking device 500. And an anti-overturning safety buckle 400 is also provided on the sliding trolley 300, which can lock the side mold and the sliding trolley 300 with each other during movement to prevent overturning, making the transfer of the formwork safer. And by providing the lateral jack 600 and the longitudinal jack 700, the side formwork 120 can move in two directions during mold clamping, facilitating mold clamping.

[0064] The foregoing description of specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. Although embodiments of the present invention have been shown and described, this specific embodiment is merely an interpretation of the present invention and is not a limitation of the invention. The specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations, and various different selections and changes that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An integral longitudinal sliding rigid side form construction method, characterized in that It includes the following steps: S1. Track installation: Measure and set out lines on the box girder support. Weld the support bottom cross beam on the support according to the set - out position, and weld the track on the support bottom cross beam so that the direction of the track is perpendicular to the direction of the support bottom cross beam; S2. Hoist the trolley: Hoist the sliding trolley onto the track; S3. Hoist the formwork: Hoist the pre - assembled side formwork onto the sliding trolley, and lock the side formwork and the sliding trolley to each other through the anti - overturning safety buckle. Use external force to drive the sliding trolley to transport the side formwork to the corresponding formwork - closing position; S4. Lock the trolley: Lock the sliding trolley and the support bottom cross beam to each other through the trolley locking device; S5. Transverse movement and positioning: Install a transverse jack on the trolley, appropriately loosen the anti - overturning safety buckle, and use the transverse jack to move the side formwork transversely to the positioning position; S6. Longitudinal movement and positioning: Install a longitudinal jack on the support bottom cross beam, fully open the anti - overturning safety buckle, and use the longitudinal jack to lift the side formwork to the installation height; S7. Assemble the formwork: Install the formwork tie rods, scissors braces, longitudinal through - beams and formwork connection bolts; S8. Reset the trolley: Release the trolley locking device, make the sliding trolley return to the initial position, and continue to transport and install the formwork of the next section; S9. On - site inspection: After the formwork system is installed, conduct an overall inspection on it. If there are weak reinforcement positions, conduct on - site temporary reinforcement treatment, and remove the longitudinal jack and the transverse jack; S10. Demoulding: Move the sliding trolley to the corresponding position, lock the trolley locking device, remove the formwork connection bolts, tie rods, and scissors braces. First, adjust the longitudinal jack to make the formwork completely fall on the sliding trolley, pre - tighten the anti - overturning safety buckle, use the transverse jack to move the side formwork outward transversely to a certain demoulding gap, install the anti - overturning safety buckle, release the trolley locking device, and use external force to drive the sliding trolley to transport the side formwork to the hoisting position; The support bottom cross beam includes two first channel steels. The backs of the two first channel steels are welded to each other through a first connecting block so that a first guiding groove is formed between the two first channel steels, and the direction of the first guiding groove is perpendicular to the direction of the track; A number of transverse beams are provided on the sliding trolley. The transverse beam is composed of two second channel steels. The two second channel steels are welded to each other through a second connecting block so that a second guiding groove is formed between the two second channel steels, and the direction of the second guiding groove is consistent with the direction of the first guiding groove; The trolley locking device includes a tensioning screw, a flange nut and an anti - loosening nut. The tensioning screw passes through the first guiding groove and the second guiding groove at the same time. The flange nuts are installed at both ends of the tensioning screw, and the flange surfaces of the flange nuts are respectively abutted against the support bottom cross beam and the transverse beam. The anti - loosening nuts are installed at both ends of the tensioning screw and are abutted against the flange nuts; A transverse support beam is provided on the back of the side formwork. A longitudinal support beam is provided below the transverse support beam, and the longitudinal support beam is perpendicular to the transverse support beam. Frame beams are provided on both sides of the trolley, and wheels are installed on the frame beams. Two ends of the transverse jack are respectively abutted against the side surface of the frame beam and the side surface of the longitudinal support beam. A clamping groove is provided in the anti-overturning safety catch, and the clamping groove is perpendicular to the traveling direction of the wheels. The transverse support beam can be stuck in the clamping groove and slide along the clamping groove.

2. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that, In step S1, the box girder support is self-built at the operation site, and it is required that the stiffness of the box girder support should ensure that no settlement or instability occurs during the in-situ casting of the beam body.

3. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that In step S8, the plate length of each section of the formwork shall be controlled between 4 meters and 4.3 meters.

4. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that, In step S10, the demoulding gap is 50 mm.

5. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that, In steps S3 and S10, using external force means pushing by manpower or towing by a winch.

6. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that, The anti-overturning safety catch includes a base and a clamping plate. The base is fixedly installed on the top of the frame beam. A clamping groove is formed in the base. The clamping plate is connected to the base by bolts, and a wear-resistant coating is applied to the bottom of the clamping plate.

7. The construction method of the integral longitudinal sliding rigid side form according to claim 1, characterized in that, A plurality of snap rings are welded to the bottom of the side formwork, and the telescopic end of the longitudinal jack can extend into the snap rings and be limited.

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