A common formwork support system for cross beam nodes and beam-slabs

Abstract

The present invention belongs to the technical field of building construction, and specifically relates to a common formwork support system for cross-beam node beams and slabs, comprising: at least four vertical poles, wherein the vertical poles are provided with a plurality of buckles at intervals along the length direction; two first double-supporting beams, wherein the two ends of the first double-supporting beams are respectively overlapped on the buckles of the two vertical poles; a first top support, which is arranged on the first double-supporting beams, and the top height of the first top support is adjustable; a second top support, which is arranged on the top of the vertical poles, and the top height of the second top support is adjustable; two second double-supporting beams, wherein the two ends of the second double-supporting beams are respectively overlapped on two second top supports; a third top support, which is arranged on the second double-supporting beams, and the top height of the third top support is adjustable; the present invention realizes the support of the lower beam, the upper beam and the floor slab through four vertical poles, reduces the installation density of the vertical poles, thereby reducing the construction cost, and simplifies the support structure and improves the construction efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a common formwork support system for beams and slabs at cross beam nodes. Background Art

[0002] Before pouring the beams and floor slabs of a building, the formwork needs to be supported by scaffolding. However, when pouring complex structures such as cross beams, due to the different bottom heights of the beams and floor slabs, independent vertical supports need to be set up, which will result in too dense vertical supports in this area, and the construction process is cumbersome, affecting construction efficiency. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a cross-beam node beam-slab common formwork support system, which can reduce the vertical support density, simplify the support structure and improve the construction efficiency.

[0004] In order to achieve the above-mentioned and other related purposes, the present invention provides a cross beam node beam-slab common formwork support system, comprising:

[0005] At least four vertical poles, the four vertical poles are distributed at four vertices of a rectangular area, and the vertical projection of the cross beam node is located in the rectangular area; the vertical poles are provided with a plurality of buckles at intervals along the length direction;

[0006] Two first double supporting beams are respectively arranged along two opposite edges of the rectangular area, and two ends of the first double supporting beams are respectively overlapped on the buckles of the two vertical poles;

[0007] A first top support is arranged on the first double support beam, and the top end height of the first top support is adjustable;

[0008] A second top support is arranged at the top of the vertical pole, and the top of the second top support is height-adjustable;

[0009] Two second double joists are respectively arranged along the other two opposite edges of the rectangular area, and two ends of the second double joists are respectively overlapped on the two second top supports;

[0010] A third top support is arranged on the second double support beam, and the top end height of the third top support is adjustable;

[0011] There is a height difference between the bottom surfaces of the two beams at the cross beam node, wherein the upper beam has a higher bottom surface, and the lower beam has a lower bottom surface; the first top support is used to support the first keel, the top surface of the second double support beam is used to support the second keel, and the third top support is used to support the third keel; the first keel is a keel used to support the bottom surface formwork of the lower beam, the second keel is a keel used to support the bottom surface formwork of the upper beam, and the third keel is a keel used to support the bottom surface formwork of the floor slab.

[0012] In an optional embodiment of the present invention, the first jacking support, the second jacking support or the third jacking support comprises:

[0013] First sleeve;

[0014] A screw rod is inserted into the first sleeve, and a horizontal supporting portion and a side limiting portion are provided at the upper end of the screw rod. The side limiting portion is movably connected to the upper end of the screw rod so that the side limiting portion can be close to or away from the side wall of the supported object installed on the horizontal supporting portion; the supported object is the first keel, the second double support beam or the third keel.

[0015] The first nut is threadably connected to the screw rod and abuts against the upper end of the first sleeve.

[0016] In an optional embodiment of the present invention, a swivel arm is provided at the upper end of the screw rod, the middle part of the swivel arm is rotatably connected to the upper end of the screw rod, and the side limiting part includes two vertical limiting columns respectively arranged at both ends of the swivel arm.

[0017] In an optional embodiment of the present invention, the horizontal support portion is movably connected to the screw rod in a vertical direction, and a transmission mechanism is provided between the horizontal support portion and the swivel arm. The transmission mechanism is assembled so that when the horizontal support portion moves downward under the action of the gravity of the supported object, the swivel arm can be driven to rotate through the transmission mechanism, so that the two vertical limit columns are respectively pressed against the two opposite side walls of the supported object.

[0018] In an optional embodiment of the present invention, the horizontal support portion includes a support plate, a guide column is provided at the bottom of the support plate, a second sleeve is provided at the upper end of the screw rod, and the guide column is inserted into the second sleeve; the transmission mechanism includes a guide pin fixed to the guide column, and a sleeve fixed to the rotating arm, the guide pin is arranged along the radial direction of the guide column, a vertical waist-shaped hole is provided on the side wall of the second sleeve, the sleeve is sleeved on the outer side of the second sleeve, a spiral groove is provided on the side wall of the sleeve, and the guide pin passes through the vertical waist-shaped hole and extends into the spiral groove.

[0019] In an optional embodiment of the present invention, a compression spring is provided in the second sleeve, the upper end of the compression spring abuts against the lower end of the guide column, and the compression spring is configured so that its elastic force is greater than the gravity of the support plate and the guide column, and less than the sum of the gravity of the supported object acting on the support plate and the gravity of the support plate and the guide column.

[0020] In an optional embodiment of the present invention, the guide column is provided with an external thread and a second nut matching the external thread.

[0021] In an optional embodiment of the present invention, at least two of the first jacking supports are provided on each of the first double joists, and at least two of the third jacking supports are provided on each of the second double joists.

[0022] In an optional embodiment of the present invention, the first double joist beam or the second double joist beam comprises two channel steels with openings arranged back to back, the two channel steels are spaced a certain distance apart, and the two channel steels are fixedly connected by studs.

[0023] In an optional embodiment of the present invention, a horizontal tie rod and / or a diagonal tie rod is provided between two adjacent vertical poles.

[0024] The technical effect of the present invention is that the present invention realizes the support of the lower beam, the upper beam and the floor slab through four vertical poles, reduces the installation density of the vertical poles, thereby reducing the construction cost, and simplifies the supporting structure and improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross beam node beam-slab common formwork support system provided by an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A partial enlarged view of I;

[0027] Figure 3 yes Figure 1 Partial enlarged view of II;

[0028] Figure 4 It is a front view of a common formwork support system for a cross beam node and a beam-slab provided by an embodiment of the present invention;

[0029] Figure 5 is a top view of a cross beam node beam-slab common formwork support system provided by an embodiment of the present invention;

[0030] Figure 6 is a side view of a cross beam node beam-slab common formwork support system provided by an embodiment of the present invention;

[0031] Figure 7It is a schematic diagram of the working principle of the jacking provided by an embodiment of the present invention;

[0032] Figure 8 is a three-dimensional diagram of a jacking support provided by an embodiment of the present invention;

[0033] Fig. 9 is an exploded view of a jacking support provided by an embodiment of the present invention;

[0034] Explanation of the reference numerals: 1. lower beam; 2. upper beam; 3. floor slab; 10. vertical pole; 11. buckle; 20. first double supporting beam; 31. first top support; 32. second top support; 33. third top support; 301. first sleeve; 302. first nut; 303. screw rod; 3031. second sleeve; 3032. vertical waist hole; 304. sleeve; 3041. spiral groove; 305. swivel arm; 306. vertical limit column; 307. guide column; 3071. guide pin; 3072. second nut; 308. support plate; 309. compression spring; 40. second double supporting beam; 50. horizontal pull rod. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0037] See also Figure 1-6As shown, the cross beam node beam-slab common formwork support system provided by the embodiment of the present invention comprises at least four vertical poles 10, two first double joists 20, a first top support 31, a second top support 32, two second double joists 40 and a third top support 33; the four vertical poles 10 are distributed at four vertices of a rectangular area, and the vertical projection of the cross beam node is located in the rectangular area; the vertical poles 10 are provided with a plurality of buckles 11 at intervals along the length direction; the two first double joists 20 are respectively provided along two opposite edges of the rectangular area, and the first double joists 2 0 are respectively overlapped on the buckles 11 of the two vertical poles 10; a first top support 31 is arranged on the first double support beam 20, and the top height of the first top support 31 is adjustable; a second top support 32 is arranged at the top of the vertical pole 10, and the top height of the second top support 32 is adjustable; two second double support beams 40 are respectively arranged along the other two opposite edges of the rectangular area, and the two ends of the second double support beam 40 are respectively overlapped on the two second top supports 32; a third top support 33 is arranged on the second double support beam 40, and the top height of the third top support 33 is adjustable.

[0038] See also Figure 4 As shown, there is a height difference between the bottom surfaces of the two beams at the cross beam node, wherein the upper beam 2 has a higher bottom surface, and the lower beam 1 has a lower bottom surface; the first top support 31 is used to support the first keel (not shown in the figure), the top surface of the second double support beam 40 is used to support the second keel (not shown in the figure), and the third top support 33 is used to support the third keel (not shown in the figure); the first keel is a keel used to support the bottom surface template of the lower beam 1, the second keel is a keel used to support the bottom surface template of the upper beam 2, and the third keel is a keel used to support the bottom surface template of the floor slab 3.

[0039] The present invention supports the lower beam 1, the upper beam 2 and the floor slab 3 through four vertical poles 10, reduces the installation density of the vertical poles 10, thereby reducing the construction cost, and simplifies the supporting structure and improves the construction efficiency.

[0040] See also Figure 1 As shown, in a specific embodiment, the first lifting support 31, the second lifting support 32 and the third lifting support 33 may have the same structure, and the three are collectively referred to as lifting supports hereinafter.

[0041] See also Figure 3 , 7-9, in a specific embodiment, the jacking includes a first sleeve 301, a screw rod 303 and a first nut 302; the screw rod 303 is inserted into the first sleeve 301, and the upper end of the screw rod 303 is provided with a horizontal support portion and a side limit portion, and the side limit portion is movably connected to the upper end of the screw rod 303, so that the side limit portion can be close to or away from the side wall of the supported object installed on the horizontal support portion; the supported object is the first keel, the second double support beam 40 or the third keel. The first nut 302 is threadedly connected to the screw rod 303 and abuts against the upper end of the first sleeve 301. By rotating the first nut 302, the overall height of the screw rod 303 can be adjusted.

[0042] It should be understood that the upper end of the top support in the prior art is generally a U-shaped groove structure, and its groove width is fixed, while the width of the keel is generally smaller than the width of the U-shaped groove, which causes the keel to easily deviate from the center of the top support during the laying process, causing the top support to generate a lateral bending moment, affecting the reliability of the support structure. To this end, the present invention provides a movable side limiter on the top support, which can clamp the two sides of the keel and automatically center the keel, thereby improving the reliability of the support structure.

[0043] See also Figure 8 , 9As shown, in an optional embodiment of the present invention, a swivel arm 305 is provided at the upper end of the screw rod 303, the middle part of the swivel arm 305 is rotatably connected to the upper end of the screw rod 303, and the side limit portion includes two vertical limit posts 306 respectively arranged at both ends of the swivel arm 305. Further, the horizontal support portion is movably connected to the screw rod 303 in the vertical direction, and a transmission mechanism is provided between the horizontal support portion and the swivel arm 305, and the transmission mechanism is assembled so that when the horizontal support portion moves downward under the gravity of the supported object, the swivel arm 305 can be driven to rotate through the transmission mechanism, so that the two vertical limit posts 306 are respectively pressed against the two opposite side walls of the supported object. Specifically, the horizontal support portion includes a support plate 308, a guide column 307 is provided at the bottom of the support plate 308, a second sleeve 3031 is provided at the upper end of the screw rod 303, and the guide column 307 is inserted into the second sleeve 3031; the transmission mechanism includes a guide pin 3071 fixedly connected to the guide column 307, and a sleeve 304 fixedly connected to the rotating arm 305, the guide pin 3071 is arranged along the radial direction of the guide column 307, a vertical waist-shaped hole 3032 is provided on the side wall of the second sleeve 3031, the sleeve 304 is sleeved on the outer side of the second sleeve 3031, and a spiral groove 3041 is provided on the side wall of the sleeve 304, and the guide pin 3071 passes through the vertical waist-shaped hole 3032 and extends into the spiral groove 3041. Furthermore, a compression spring 309 is provided in the second sleeve 3031, and the upper end of the compression spring 309 abuts against the lower end of the guide column 307. The compression spring 309 is configured so that its elastic force is greater than the gravity of the support plate 308 and the guide column 307, and is less than the sum of the gravity of the supported object acting on the support plate 308 and the gravity of the support plate 308 and the guide column 307.

[0044] See also Figure 7-9 As shown in the figure, the principle of the top support to ensure the automatic centering of the keel is as follows:

[0045] Before laying the keel, the support plate 308 is kept at the highest point within the stroke under the action of the compression spring 309, and the center line between the two vertical limit posts 306 on the same top support is perpendicular to the length direction of the predetermined installation posture of the keel. After the keel is laid on the support plate 308, the support plate 308 moves downward. At the same time, the support plate 308 drives the swivel arm 305 to swing, so that the vertical limit posts 306 swing to Figure 7 In the state shown, with the cooperation of the two jacking supports, the keel is clamped in the center by the vertical limiting column 306.

[0046] See also Figure 8 , 9As shown, in an optional embodiment of the present invention, the guide column 307 is provided with an external thread, and a second nut 3072 matched with the external thread. It should be understood that the bearing capacity of the guide pin 3071 is limited. Therefore, in order to avoid that the load on the support plate 308 in the later pouring process is all applied to the guide pin 3071, the second nut 3072 is set between the guide column 307 and the second sleeve 3031 in this embodiment. Before laying the keel, the second nut 3072 is located at the highest position within the stroke to avoid blocking the downward movement of the support plate 308. When the keel is laid, the operator can screw the second nut 3072 downward and make it abut against the second sleeve 3031. In the subsequent pouring process, the load is mainly transmitted by the second nut 3072 and the second sleeve 3031 to ensure the supporting strength of the top support.

[0047] See also Figure 1-6 As shown, in an optional embodiment of the present invention, each of the first double joists 20 is provided with at least two of the first jacking supports 31, and each of the second double joists 40 is provided with at least two of the third jacking supports 33. It should be understood that based on the transmission structure of the jacking supports, the jacking supports need to be used in pairs to achieve the positioning function of the keel.

[0048] See also Figure 2 As shown, in an optional embodiment of the present invention, the first double joist 20 or the second double joist 40 comprises two channel steels with openings facing back to back, the two channel steels are spaced a certain distance apart, and the two channel steels are fixedly connected by studs. Figure 1 As shown, a horizontal tie rod 50 and / or an inclined tie rod is provided between two adjacent vertical poles 10 .

[0049] In summary, the present invention supports the lower beam 1, the upper beam 2 and the floor slab 3 through four vertical poles 10, reduces the installation density of the vertical poles 10, thereby reducing the construction cost, and simplifies the supporting structure and improves the construction efficiency; the present invention is provided with a movable side limit part on the top support, the side limit part can clamp the two sides of the keel and automatically center the keel, thereby improving the reliability of the supporting structure.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

[0051] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

Claims

1. A cross beam node beam-slab common formwork support system, characterized in that: include: At least four vertical poles (10), the four vertical poles (10) being distributed at four vertices of a rectangular area, and the vertical projection of the cross beam node being located within the rectangular area; the vertical poles (10) being provided with a plurality of loops (11) at intervals along the length direction; Two first double supporting beams (20) are respectively arranged along two opposite edges of the rectangular area, and two ends of the first double supporting beams (20) are respectively overlapped on the buckles (11) of the two vertical poles (10); A first top support (31) is arranged on the first double support beam (20), and the top end of the first top support (31) is height-adjustable; A second top support (32) is arranged at the top end of the vertical rod (10), and the top end of the second top support (32) is height-adjustable; Two second double supporting beams (40) are respectively arranged along the other two opposite edges of the rectangular area, and two ends of the second double supporting beams (40) are respectively overlapped on the two second top supports (32); A third top support (33) is arranged on the second double support beam (40), and the top end of the third top support (33) is height-adjustable; There is a height difference between the bottom surfaces of the two beams at the cross beam node, wherein the upper beam (2) has the higher bottom surface, and the lower beam (1) has the lower bottom surface; the first top support (31) is used to support a first keel, the top surface of the second double support beam (40) is used to support a second keel, and the third top support (33) is used to support a third keel; the first keel is a keel used to support the bottom template of the lower beam (1), the second keel is a keel used to support the bottom template of the upper beam (2), and the third keel is a keel used to support the bottom template of the floor slab (3); The first jacking support (31), the second jacking support (32) or the third jacking support (33) comprises: A first sleeve (301); A screw rod (303) is inserted into the first sleeve (301), and a horizontal support portion and a side limit portion are provided at the upper end of the screw rod (303), and the side limit portion is movably connected to the upper end of the screw rod (303) so that the side limit portion can approach or move away from a side wall of a supported object mounted on the horizontal support portion; the supported object is the first keel, the second double support beam (40) or the third keel; A first nut (302) is threadedly connected to the screw rod (303) and abuts against the upper end of the first sleeve (301); A swivel arm (305) is provided at the upper end of the screw rod (303); the middle portion of the swivel arm (305) is rotatably connected to the upper end of the screw rod (303); and the side limiting portion comprises two vertical limiting columns (306) respectively provided at two ends of the swivel arm (305); The horizontal support portion is movably connected to the screw rod (303) in the vertical direction, and a transmission mechanism is provided between the horizontal support portion and the swivel arm (305). The transmission mechanism is configured so that when the horizontal support portion moves downward under the action of the gravity of the supported object, the swivel arm (305) can be driven to rotate through the transmission mechanism, so that the two vertical limit columns (306) are respectively pressed against two opposite side walls of the supported object.

2. The cross beam node beam-slab common formwork support system according to claim 1 is characterized in that: The horizontal support portion comprises a support plate (308), a guide column (307) is provided at the bottom of the support plate (308), a second sleeve (3031) is provided at the upper end of the screw rod (303), and the guide column (307) is inserted into the second sleeve (3031); the transmission mechanism comprises a guide pin (3071) fixedly connected to the guide column (307), and a sleeve (304) fixedly connected to the slewing arm (305), the guide pin (3071) is arranged along the radial direction of the guide column (307), a vertical waist-shaped hole (3032) is provided on the side wall of the second sleeve (3031), the sleeve (304) is sleeved on the outer side of the second sleeve (3031), a spiral groove (3041) is provided on the side wall of the sleeve (304), and the guide pin (3071) passes through the vertical waist-shaped hole (3032) and extends into the spiral groove (3041).

3. The cross beam node beam-slab common formwork support system according to claim 2 is characterized in that: A compression spring (309) is provided in the second sleeve (3031), the upper end of the compression spring (309) abuts against the lower end of the guide column (307), and the compression spring (309) is configured so that its elastic force is greater than the gravity of the support plate (308) and the guide column (307), and less than the sum of the gravity of the supported object acting on the support plate (308) and the gravity of the support plate (308) and the guide column (307).

4. The cross beam node beam-slab common formwork support system according to claim 3 is characterized in that: The guide column (307) is provided with an external thread and a second nut (3072) that cooperates with the external thread.

5. The cross beam node beam-slab common formwork support system according to claim 1 is characterized in that: At least two of the first jacking supports (31) are provided on each of the first double joists (20), and at least two of the third jacking supports (33) are provided on each of the second double joists (40).

6. The cross beam node beam-slab common formwork support system according to claim 1, characterized in that: The first double joist (20) or the second double joist (40) comprises two channel steels with openings arranged back to back, the two channel steels are spaced a certain distance apart, and the two channel steels are fixedly connected by studs.

7. The cross beam node beam-slab common formwork support system according to claim 1, characterized in that: A horizontal tie rod (50) and / or an inclined tie rod is provided between two adjacent vertical rods (10).

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