CN218375186U - Large-volume concrete penetration-free Kong Tuila combined self-propelled sliding steel formwork - Google Patents

Abstract

The utility model discloses a large-volume concrete perforation-free push-pull combined self-propelled sliding steel formwork, which includes an inner formwork, an outer formwork, and foundation concrete. The inner formwork and the outer formwork are installed on the foundation concrete, and also includes: ground anchors; ground anchors Pull ring, the ground anchor pull ring is fixed on the upper part of the side wall of the ground anchor, the ground anchor pull ring is fixed to one end of the tie steel strand, and the other end of the tie steel strand is fixed to the upper part of the inner mold The ground anchor connecting hinge is fixed in the middle of the side wall of the ground anchor, and the ground anchor connecting hinge is connected to the outer wall of the inner mold through the wall waist push rod and the wall bottom push rod respectively. The large-volume concrete perforation-free push-pull combined self-propelled sliding steel formwork can effectively improve the durability of chloride ion corrosion protection of large-volume reinforced concrete, and at the same time improve the concrete construction efficiency.

Description

Massive concrete perforation-free push-pull combined self-propelled sliding steel formwork

technical field

The utility model relates to the technical field of engineering construction, in particular to a large-volume concrete perforation-free push-pull combined self-propelled sliding steel formwork.

Background technique

When pouring large-volume concrete, in order to prevent the concrete formwork from expanding and leaking grout, resulting in poor concrete quality, the formwork on both sides is often tightened by double-tensioned screws, which penetrate through the interior of the concrete and tie the formwork on both sides to ensure large-volume concrete. The concrete formwork can bear the lateral pressure generated by the concrete's own weight and concrete vibration. Regardless of whether the pull screw is covered with a PVC pipe or the pull screw is permanently placed in the reinforced concrete structure, the internal penetration of the reinforced concrete structure will be caused after the formwork is removed, and the chloride ions in the air and seawater can enter the reinforced concrete through this channel. It is easy to cause corrosion of steel bars, which is not conducive to the durability of reinforced concrete structures.

Utility model content

The purpose of the utility model is to provide a large-volume concrete perforation-free push-pull combined self-propelled sliding steel formwork, which can effectively improve the durability of large-volume reinforced concrete chloride ion corrosion protection, and at the same time improve the efficiency of concrete construction.

In order to achieve the above object, the utility model provides the following technical solutions:

The self-propelled sliding steel formwork of large-volume concrete-free perforation push-pull combination includes an inner formwork, an outer formwork, and foundation concrete. The inner formwork and outer formwork are installed on the foundation concrete, and also includes:

ground anchor;

Ground anchor pull ring, the ground anchor pull ring is fixed on the upper part of the side wall of the ground anchor, and one end of the tie steel strand is fixed to the ground anchor pull ring, and the other end of the tie steel strand is connected to the inner mold upper fixed;

The ground anchor connecting hinge is fixed on the middle part of the side wall of the ground anchor, and the ground anchor connecting hinge is connected to the outer wall of the inner mold through the wall waist push rod and the wall bottom push rod respectively.

Preferably, two blades are reserved at the upper end of the foundation concrete, and the inner mold and the outer mold are respectively embedded in the blades.

Preferably, vertically distributed steel bars are pre-embedded between the reserved edges of the foundation concrete.

Preferably, the ground anchors are arranged at intervals, the ground anchors are steel structural members, and the ground anchors are connected to the foundation concrete through embedded bolts.

Preferably, the upper, middle and lower parts of the outer wall of the inner mold are respectively equipped with an inner mold pull ring, an inner mold wall waist push rod connecting hinge, an inner mold wall bottom push rod connecting hinge, and the inner mold pull ring, inner mold wall The connecting hinge of the waist push rod and the push rod connecting hinge at the bottom of the inner mold wall are respectively connected with the tie steel strands, the push rod at the waist of the wall and the push rod at the bottom of the wall.

Preferably, the wall waist push rod is composed of push rod one and push rod two, the two ends of the push rod one are respectively fixed with a hinged head and a screw head, and the push rod one is hingedly connected to the ground anchor through the hinged head , the two ends of the push rod two are respectively fixed with the hinge head and the nut head, one end of the push rod two is hingedly connected with the inner mold wall waist push rod through the hinge head, and the screw head and the nut head are connected by threads.

Preferably, the push rod at the bottom of the wall is composed of a push rod three and a push rod four, the two ends of the push rod three are respectively fixed with a hinged head and a screw head, and the push rod three is hingedly connected to the ground anchor through the hinged head , the two ends of the push rod four are respectively fixed with the hinge head and the nut head, and one end of the push rod four is hingedly connected with the push rod at the bottom of the inner mold wall through the hinge head, and the screw head and the nut head are connected by threads.

Preferably, a tie beam is also included, the tie beam adopts an L-shaped steel structure, the long side of the tie beam is welded to the inner mold, and the short side of the tie beam is fixed to the outer mold by bolts.

Preferably, a tie beam is welded at an interval of 1 m, and the gap between each tie beam is reserved for vibration.

Preferably, telescopic self-propelled pulleys are installed on the bottom of the inner mold and the outer mold, and a pair of telescopic self-propelled pulleys are installed at intervals of 1m. The protective cover of the self-propelled pulley is connected with the inner mold and the outer mold by lap welding.

Compared with the prior art, the beneficial effects of the utility model are:

1) The edge foot is reserved in the foundation concrete to provide support for the subsequent embedding and anchoring of the perforation-free formwork, which improves the structural stability of the perforation-free push-pull composite formwork system and reduces the phenomenon of concrete grout leakage.

2) By using tie steel strands and wall waist push rods between the ground anchor pull ring and the ground anchor connection hinge, the inner mold pull ring, the inner mold wall waist push rod connection hinge, and the inner mold wall bottom push rod connection hinge, The push rod at the bottom of the wall is used as the support system of the combined formwork to realize the tie and support of the free-perforation formwork, which is efficient and quick, saves materials, effectively improves the efficiency of formwork installation and disassembly, and greatly improves the durability of the reinforced concrete structure.

3) The inner formwork and the outer formwork are connected as a whole by tie beams and bolts, which improves the efficiency of formwork installation and disassembly while ensuring the overall stability of the formwork.

4) The push rod at the waist of the wall and the push rod at the bottom of the wall are connected by a steel pipe with two joints at one end, a screw head at one end and a nut head at one end, and the overall length of the push rod can be adjusted by rotating the screw clockwise and counterclockwise. The need to unload the thrust and fine-tune the length of the push rod when the push rod pushes against the inner mold or when the mold is removed provides an efficient and convenient method.

5) With telescopic self-propelled pulleys, the formwork can be lifted by extending the self-propelled pulleys after the formwork is removed, and then slide to the next span area under the traction of the traction equipment to improve the transfer efficiency of the formwork.

Description of drawings

Fig. 1 is the structural representation of the self-propelled sliding steel formwork of the large-volume concrete perforation-free push-pull combined self-propelled sliding formwork in the embodiment of the utility model;

In the figure, 1. Inner formwork, 2. Outer formwork, 3. Foundation concrete, 4. Blade foot, 5. Brushing, 6. Vertical distribution of steel bars, 7. Telescopic self-propelled pulley, 8. Telescopic self-propelled pulley protective cover, 9. Ground anchor, 10. Ground anchor pull ring, 11. Ground anchor connecting hinge, 12. Tie beam, 13. Embedded bolt, 14. Tie steel strand, 15. Wall waist push rod, 16. Wall bottom Push rod, 17, inner mold pull ring, 18, inner mold wall waist push rod connecting hinge, 19, inner mold wall bottom push rod connecting hinge, 20, consolidation bolt, 21, reserved opening for vibration, 22, consolidation Bolt hole, 23, two-section vibrating rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, the self-propelled sliding steel formwork of large-volume concrete perforation-free push-pull combination, including the inner formwork 1, the outer formwork 2, and the foundation concrete 3, the inner formwork 1 and the outer formwork 2 are installed on the foundation concrete 3, and the foundation concrete 3. Two blade feet 4 are reserved at the upper end, and the inner mold 1 and the outer mold 2 are embedded in the blade feet 4 respectively. The width between the reserved blade feet 4 of the two foundation concrete 3 is consistent with the bottom width of the large-volume reinforced concrete structure that needs to be poured later, that is, the size between the reserved blade feet 4 of the two foundation concrete 3 is the same as that of the inner mold 1 and the outer mold The width between the 2 is consistent to ensure that the inner mold 1 and the outer mold 2 can be embedded in the foundation concrete 3 and reserve the blade foot 4, and the depth of the blade foot 4 reserved in the foundation concrete 3 is designed to be 15cm to ensure that the inner and outer molds 2 have sufficient embedding depth . The reserved edge 4 of the base concrete 3 can not only provide embedded support for the inner formwork 1 and the outer formwork 2, but also prevent the grout from leaking from the bottom when the concrete of the upper bearing is poured. After the foundation concrete 3 is poured and maintained, the surface of the foundation concrete 3 between the two reserved blade feet 4 is roughened 5 to form an uneven rough surface of the foundation concrete 3 to ensure that the post-cast concrete of the upper bearing is bonded to the foundation Firm, ensuring the integrity of the connection between the upper and lower structures.

The foundation concrete 3 reserves the pre-embedded vertically distributed steel bars 6 between the edge feet 4, and the pre-embedded vertically distributed steel bars 6 are welded with the large-volume reinforced concrete structural steel bars on the foundation concrete 3 to form a whole, ensuring that the foundation concrete 3 and the upper bearing Integrity of connections between reinforced concrete structures. The bottoms of the inner mold 1 and the outer mold 2 are equipped with telescopic self-propelled pulleys 7, and a pair of telescopic self-propelled pulleys 7 are installed every 1m. The protective cover 8 is connected with the inner mold 1 and the outer mold 2 by lap welding. When using the formwork, retract the telescopic self-propelled pulley 7 into the telescopic self-propelled pulley protective cover 8, and when the formwork is removed and moved to the next span area, stretch out the telescopic self-propelled pulley 7 to jack up the formwork and slide under the traction of the traction equipment to the next span.

It also includes a ground anchor 9, a ground anchor pull ring 10, a ground anchor connecting hinge 11, and a tie beam 12. The ground anchors 9 are arranged at intervals, and the ground anchor 9 adopts a steel structural member. . A ground anchor 9 is arranged at an interval of 2m, which not only meets the gyration space of the mechanical equipment on the construction face, but also ensures the binding and fixing requirements of the ground anchor 9 structure to the formwork system.

The ground anchor pull ring 10 is fixed on the side wall top of the ground anchor 9, the ground anchor pull ring 10 is fixed to one end of the tie steel strand 14, and the other end of the tie steel strand 14 is fixed to the top of the inner mold 1; the ground anchor Connecting hinge 11 is fixed on the side wall middle part of ground anchor 9, and ground anchor connecting hinge 11 is connected with inner side mold 1 outer wall by wall waist push rod 15 and wall bottom push rod 16 respectively. The upper, middle and lower parts of the outer wall of the inner mold 1 are respectively equipped with an inner mold pull ring 17, an inner mold wall waist push rod connecting hinge 18, an inner mold wall bottom push rod connecting hinge 19, an inner mold pull ring 17, and an inner mold wall waist pusher. Rod connection hinge 18, push rod connection hinge 19 at the bottom of the inner mold wall are connected with tie steel strand 14, wall waist push rod 15 and wall bottom push rod 16 respectively.

Wall waist push rod 15 is made up of push rod one and push rod two, and the two ends of push rod one are respectively fixed with hinge joint and screw head, and push rod one is connected with ground anchor connection hinge 11 by hinge joint, and the two ends of push rod two Fix with hinged head and nut head respectively, one end of push rod two is connected with hinge 18 by hinged head and inner mold wall waist push rod connecting hinge, and screw head and nut head are connected by thread. The overall length of the wall waist push rod 15 can be adjusted by clockwise and counterclockwise rotation of the screw head, providing for the needs of the wall waist push rod 15 to push and compress the inner mold 1 or to unload thrust and fine-tune the length of the wall waist push rod 15 when the mold is removed. efficient and convenient method.

Push rod 16 at the bottom of the wall is made up of push rod three and push rod four, and the two ends of push rod three are respectively fixed with hinged head and screw head, and push rod three is connected with ground anchor connection hinge 11 through hinged head, and the two ends of push rod four Fix with hinged head and nut head respectively, one end of push rod 4 is connected with push rod connection hinge 19 at the bottom of the inner mold wall by hinged head, and screw head and nut head are connected by threads. The overall length of the push rod 16 at the bottom of the wall can be adjusted by rotating the screw clockwise and counterclockwise, which provides a solution for the needs of the push rod 16 at the bottom of the wall to push and compress the inner mold 1 or to unload the thrust and fine-tune the length of the push rod 16 at the bottom of the wall when the mold is removed. Efficient and convenient method.

The tie beam 12 adopts an L-shaped steel structure, and the long side of the tie beam 12 is welded with the inner mold 1 to form a whole, and the short side of the tie beam 12 is fixed with the outer mold 2 through a consolidation bolt 20 . Weld a tie beam 12 at intervals of 1m, and the gap between each tie beam 12 is a reserved opening 21 for vibrating. The short side of the tie beam 12 is provided with the tie beam 12 to reserve the consolidation bolt holes 22, and the outer formwork 2 is provided with the outer formwork 2 to pre-embed the consolidation bolts 20. The fastening bolt holes 22 are tightened to complete the rigid connection between the tie beam 12 and the outer formwork 2, so that the inner formwork 1, the tie beam 12 and the outer formwork 2 form a whole to form a stable combined formwork.

Concrete can be poured after the formwork is completed. Double-section vibrating rod 23 is used for concrete vibration. The double-section vibrating rod is vertically inserted into the concrete through the reserved opening for vibrating, and the bending of the second section of the vibrating rod is adjusted according to the size of the concrete structure. angle to ensure that mass concrete can be vibrated comprehensively.

The above content is only an example and description of the structure of the present utility model. Those skilled in the art make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the present utility model. The structure or beyond the scope defined in the claims shall belong to the protection scope of the present utility model.

Claims (10)

1. Large volume concrete exempts from to wear Kong Tuila combination is from walking steel form that slides, including interior side mould, outside mould, basic concrete, interior side mould and outside mould are installed on basic concrete, its characterized in that still includes:

a ground anchor;

the ground anchor pull ring is fixed on the upper part of the side wall of the ground anchor, the ground anchor pull ring is fixed with one end of the drawknot steel strand, and the other end of the drawknot steel strand is fixed with the upper part of the inner side die;

the ground anchor connecting hinge is fixed in the middle of the side wall of the ground anchor and is connected with the outer wall of the inner side mold through the wall waist push rod and the wall bottom push rod respectively.

2. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 1, wherein: two cutting edges are reserved at the upper end of the foundation concrete, and the inner side die and the outer side die are respectively embedded into the cutting edges.

3. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 2, wherein: and vertically distributed reinforcing steel bars are embedded between the reserved foundation concrete blade legs.

4. The mass concrete penetration-free Kong Tuila combined self-propelled sliding steel formwork of claim 1, wherein: the ground anchor is arranged at intervals, the ground anchor is a steel structural member, and the ground anchor is connected with the foundation concrete through pre-buried bolts.

5. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 1, wherein: the upper part, the middle part and the lower part of the outer wall of the inner side die are respectively provided with an inner side die pull ring, an inner side die wall waist push rod connecting hinge and an inner side die wall bottom push rod connecting hinge, and the inner side die pull ring, the inner side die wall waist push rod connecting hinge and the inner side die wall bottom push rod connecting hinge are respectively connected with the drawknot steel strand, the wall waist push rod and the wall bottom push rod.

6. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 5, wherein: the wall waist push rod comprises a first push rod and a second push rod, the two ends of the first push rod are respectively fixed with a hinged joint and a screw head, the first push rod is hinged with the ground anchor through the hinged joint, the two ends of the second push rod are respectively fixed with the hinged joint and a nut head, one end of the second push rod is hinged with the inner side die wall waist push rod through the hinged joint, and the screw head is connected with the nut head through threads.

7. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 5, wherein: the wall bottom push rod is composed of a third push rod and a fourth push rod, a hinge and a screw head are fixed to the two ends of the third push rod respectively, the three-way push rod is connected and hinged with the ground anchor, the two ends of the fourth push rod are fixed with the hinge and the nut head respectively, one end of the fourth push rod is connected and hinged with the inner side mold wall bottom push rod through the hinge, and the screw head is connected with the nut head through threads.

8. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 1, wherein: the steel plate drawing and bonding device is characterized by further comprising a drawing and bonding beam, wherein the drawing and bonding beam is of an L-shaped steel structure, the long edge of the drawing and bonding beam is welded with the inner side mold, and the short edge of the drawing and bonding beam is fixed with the outer side mold through bolts.

9. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel form of claim 8, wherein: and one tie beam is welded at intervals of 1m, and a gap between every two tie beams is a vibration reserved opening.

10. The mass concrete penetration-free Kong Tuila combination self-propelled sliding steel formwork of claim 1, wherein: the telescopic self-propelled pulley protection cover is characterized in that a telescopic self-propelled pulley is installed at the bottom of the inner side die and the bottom of the outer side die, a pair of telescopic self-propelled pulleys is installed at intervals of 1m, a telescopic self-propelled pulley protection cover is sleeved on the telescopic self-propelled pulley, and the telescopic self-propelled pulley protection cover is connected with the inner side die and the outer side die in a lap welding mode.

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