CN213836635U - Prefabricated high-strength tubular rigid body joint for composite foundation - Google Patents
Prefabricated high-strength tubular rigid body joint for composite foundation Download PDFInfo
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- CN213836635U CN213836635U CN202022409597.9U CN202022409597U CN213836635U CN 213836635 U CN213836635 U CN 213836635U CN 202022409597 U CN202022409597 U CN 202022409597U CN 213836635 U CN213836635 U CN 213836635U
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Abstract
The utility model discloses a prefabricated high-strength tubular stiff body joint for a composite foundation, which belongs to the technical field of traffic construction engineering and is used for the up-and-down butt joint of tubular stiff bodies, and the joint comprises a first end plate; a second end plate; a plurality of first trapezoidal convex teeth are arranged on the lower end surface of the first end plate in an annular array mode, a plurality of second trapezoidal convex teeth with the same number as the first trapezoidal convex teeth are arranged on the upper end surface of the second end plate in an annular array mode, and a first matching groove and a second matching groove are formed between every two adjacent first trapezoidal convex teeth and second trapezoidal convex teeth at intervals; the lower extreme periphery side of second end plate is equipped with the extension of frustum shape structure, and the frustum shape microcephaly of this extension holds the lower terminal surface of being level with the second end plate mutually, and its macrostoma end extends to the vertical direction middle part of second end plate, and the distance that the macrostoma end of this extension surpasss second end plate periphery side in the footpath is 0.3 ~ 1cm, and this scheme simple structure, implementation are nimble convenient and can improve joint strength between the tubulose strength body.
Description
Technical Field
The utility model relates to a traffic construction engineering technical field especially relates to a compound ground is with prefabricated high strength tubular strength body joint.
Background
The tubular rigid body is used as an important use building material in traffic construction engineering construction, the quality reliability of the tubular rigid body is related to the safety of supports such as a peripheral road bridge, a building and the like, the safety and the stability of an upper building and a peripheral building can be ensured only under the condition of ensuring the self quality and the reliable connection quality, as is well known, when the depth of piling is deeper, two or more sections of tubular rigid bodies are required to be connected, in the traditional scheme, most of the multi-section tubular rigid bodies are connected in a form of welding and fixing end plates, most of the end plates are of flat plate structures, the end plates are fixed with main ribs in the tubular rigid bodies through main rib anchor holes and counter bores, so that the end plates are tightly and fixedly connected with the tubular rigid bodies, and the fixed connection of the two sections of tubular rigid bodies is realized after the end plates between the tubular rigid bodies at the upper section and the lower section are mutually welded, the mode has the limitation that the end plates of the flat plate structures are difficult to play a role of assisting coaxial positioning, the two sections of tubular rigid bodies can be welded after being coaxially aligned, the end plates of the flat plate structure cannot be positioned in an auxiliary mode, a large amount of labor is needed for aligning, in addition, the welding stroke of end plate welding is short, certain uncertainty exists in the welding strength after edge welding, when the composite foundation is constructed, the requirement on the connection strength of the tubular rigid bodies is high due to the fact that the situation in the soil layer is complex, and how to improve the connection reliability of the joints of the tubular rigid bodies is a problem with practical significance.
Disclosure of Invention
In view of this, the utility model aims at providing a simple structure, implement nimble convenient and can improve the composite foundation of joint strength between the tubulose strength body with prefabricated high strength tubulose strength body joint.
In order to realize the technical purpose, the utility model adopts the technical scheme that:
the utility model provides a prefabricated high strength tubular stiff body joint for composite foundation for upper and lower butt joint of tubular stiff body, wherein, the tubular stiff body that is located the upper end is established as first stiff body, and the stiff body that is located the lower extreme is established as second stiff body, first stiff body and second stiff body in all be equipped with a plurality of main muscle that extend to its both ends, the joint include:
the first end plate is of an annular plate-shaped structure and is fixedly arranged on the lower end face of the first stiff body, a first annular connecting part is arranged on the inner peripheral side of the upper end part of the first stiff body, a plurality of first main rib anchor holes used for being matched with main ribs in the first stiff body in a one-to-one corresponding mode are distributed in the first annular connecting part in an annular array mode, and first counter bores used for fixing the main ribs are correspondingly arranged on one side of each first main rib anchor hole;
the second end plate is of an annular plate-shaped structure and is fixedly arranged on the upper end face of the second rigid body, a second annular connecting part is arranged on the inner peripheral side of the lower end part of the second rigid body, a plurality of second main rib anchor holes used for being matched with main ribs in the second rigid body in a one-to-one correspondence mode are distributed in an annular array mode on the second annular connecting part, and second counter bores used for fixing the main ribs are correspondingly arranged on one side of each second main rib anchor hole;
the lower end face of the first end plate is provided with a plurality of first trapezoidal convex teeth in an annular array, the upper end face of the second end plate is provided with a plurality of second trapezoidal convex teeth in an annular array, the number of the second trapezoidal convex teeth is the same as that of the first trapezoidal convex teeth, first matching grooves which are matched with the profiles of the second trapezoidal convex teeth and are used for being matched with the second trapezoidal convex teeth are formed between adjacent first trapezoidal convex teeth at intervals, second matching grooves which are matched with the profiles of the first trapezoidal convex teeth and are used for being matched with the first trapezoidal convex teeth are formed between adjacent second trapezoidal convex teeth at intervals, in addition, the middle parts of inclined planes of the first trapezoidal convex teeth, corresponding to the two sides of the first matching grooves, are provided with first positioning bulges in a hemispherical structure, and first positioning grooves which are matched with the first positioning bulges are correspondingly arranged on inclined planes of the two sides of the second trapezoidal convex teeth;
the outer periphery of the lower end of the second end plate is provided with an extension part of a frustum-shaped structure, a frustum-shaped small opening end of the extension part is flat with the lower end face of the second end plate, a large opening end of the extension part extends to the middle of the second end plate in the vertical direction, and the distance of the large opening end of the extension part exceeding the outer periphery of the second end plate in the radial direction is 0.3-1 cm.
As a possible implementation manner, the scheme further includes a plurality of reinforcing plates and a plurality of fastening bolts, the number of the reinforcing plates is the same as the number of the second trapezoidal convex teeth, one end of each reinforcing plate is provided with a first kidney-shaped hole, the other end of each reinforcing plate is provided with a second kidney-shaped hole, a first threaded hole is formed in the outer peripheral side of the first end plate, which corresponds to the first matching groove, and corresponds to the first kidney-shaped hole of the reinforcing plate, a second threaded hole is formed in the outer side surface of each second trapezoidal convex tooth, which corresponds to the second kidney-shaped hole of the reinforcing plate, the fastening bolts correspond to the first kidney-shaped hole and the second kidney-shaped hole of the reinforcing plate one to one, the screw ends of the fastening bolts penetrate through the first kidney-shaped hole and are locked and fixed with the first threaded hole, or the screw ends of the fastening bolts penetrate through the second kidney-shaped hole and are locked and fixed with the second threaded hole, so that the first end plate and the second end plate are relatively fixed.
As a preferred embodiment, it is preferable that the reinforcing plate has an arc-shaped structure corresponding to the outer surface of the first end plate or the second end plate, and the thickness of the reinforcing plate is not greater than the distance from the large opening end of the extension portion of the second end plate to the outer peripheral side of the second end plate in the radial direction.
Preferably, the diameter of the first threaded hole is 1/3-3/5 of the length of the bottom edge of the first matching groove, the distance between the edge of the first threaded hole and the bottom edge of the first matching groove is not less than 5mm, the diameter of the second threaded hole is 1/3-3/5 of the length of the short bottom edge of the second trapezoidal convex tooth, and the distance between the edge of the second threaded hole and the short bottom edge of the second trapezoidal convex tooth is not less than 5 mm.
As a preferred embodiment, it is preferable that both end edges of the reinforcing plate are arc-shaped.
As a possible embodiment, the acute angle portion of each of the first trapezoidal convex tooth and the second trapezoidal convex tooth is inclined at an angle ranging from 45 degrees to 60 degrees.
As a possible implementation manner, the height of each of the first trapezoidal convex tooth and the second trapezoidal convex tooth is 1-2 cm.
As a possible embodiment, further, the number of the first trapezoidal convex teeth on the first end plate is 8, and the number of the first matching grooves, the second trapezoidal convex teeth and the second matching grooves corresponds to 8.
Adopt foretell technical scheme, compared with the prior art, the utility model, its beneficial effect who has is: according to the scheme, the first trapezoidal convex teeth or the second trapezoidal convex teeth are arranged on the first end plate and the second end plate in an ingenious utilization mode, the second matching grooves are formed between the first matching grooves and the second trapezoidal convex teeth, the first end plate and the second end plate can be matched with each other to form a gear-like meshing mechanism, when the first end plate and the second end plate are in butt joint, the first trapezoidal convex teeth and the second trapezoidal convex teeth can be guided to be coaxially aligned in an auxiliary mode through slope characteristics of the two sides of the first trapezoidal convex teeth and slope characteristics of the two sides of the second trapezoidal convex teeth, the middle parts of slopes of the first trapezoidal convex teeth, corresponding to the two sides of the first matching grooves, of the first matching grooves are provided with first positioning bulges in a hemispherical structure, and the slopes of the two sides of the second trapezoidal convex teeth are correspondingly provided with first positioning grooves which are matched with the first positioning bulge structures; the first end plate and the second end plate can be further aligned and matched and the poor adaptation condition of relative rotation is avoided, an operator can fix the first end plate and the second end plate only by welding the first end plate and the second end plate after the first end plate and the second end plate are matched in place, the high-strength connection of two tubular rigid bodies is realized, in addition, the pre-fixing before welding can be realized by further fastening and adapting a plurality of reinforcing plates and a plurality of fastening bolts with first threaded holes or second threaded holes on the first end plate and the second end plate, the reliability and the pulling resistance of later welding work are improved, meanwhile, the outer periphery side of the lower end of the second end plate is provided with an extension part of a frustum-shaped structure, the distance of the large opening end of the extension part exceeding the outer periphery side of the second end plate in the radial direction is 0.3-1 cm, and the tubular rigid body positioned at the lower end can be driven into a foundation in the process, a certain amount of soil is arranged, the welding connection part between the tubular rigid bodies is prevented from being directly scraped and extruded by stones or other sundries in the soil, the reverse resistance of the tubular rigid bodies positioned at the upper end is reduced to a certain extent, and the distance exceeding the extending part is smaller, so that the soil is not greatly arranged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a simple application of embodiment 1 of the present invention, wherein a schematic diagram of two sections of tubular rigid bodies after butt joint is mainly shown;
fig. 2 is a schematic diagram of a simple application of embodiment 1 of the present invention, wherein the schematic diagram mainly shows that two sections of tubular rigid bodies are not butted;
fig. 3 is a schematic structural diagram of embodiment 1 of the present invention, in which a schematic diagram of the first end plate and the second end plate after being connected and matched is mainly shown;
fig. 4 is a schematic structural view of a schematic implementation of embodiment 1 of the present invention, wherein the schematic view mainly shows the first end plate and the second end plate which are not connected and matched;
FIG. 5 is a schematic structural diagram of embodiment 1 of the present invention, in which a sectional view of a part of the structure is shown;
fig. 6 is a schematic structural view of a first end plate according to embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a second end plate according to embodiment 1 of the present invention;
FIG. 8 is a schematic structural view of embodiment 2 of the present invention;
FIG. 9 is one of schematic structural diagrams of a reinforcing plate according to embodiment 2 of the present invention;
fig. 10 is a second schematic structural view of a reinforcing plate according to embodiment 2 of the present invention;
fig. 11 is a third schematic structural view of a reinforcing plate according to embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only for illustrating the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1
As shown in one of fig. 1 to 7, the utility model relates to a prefabricated high-strength tubular rigid body joint for composite foundation is used for the upper and lower butt joint of tubular rigid body, wherein, the tubular rigid body that is located the upper end is established as first rigid body 1, the rigid body that is located the lower extreme is established as second rigid body 2, first rigid body 1 and second rigid body 2 in all be equipped with a plurality of main muscle (not shown) that extend to its both ends, the joint include:
the first end plate 3 is of an annular plate-shaped structure and is fixedly arranged on the lower end face of the first stiff body 1, a first annular connecting part 33 is arranged on the inner peripheral side of the upper end part of the first stiff body 1, a plurality of first main rib anchor holes 331 which are used for being matched with main ribs in the first stiff body 1 in a one-to-one correspondence mode are distributed on the first annular connecting part 33 in an annular array mode, and first counter holes 332 used for fixing the main ribs are correspondingly arranged on one side of each first main rib anchor hole 331;
the second end plate 4 is of an annular plate-shaped structure and is fixedly arranged on the upper end face of the second rigid body 2, a second annular connecting part 44 is arranged on the inner peripheral side of the lower end part of the second rigid body 2, a plurality of second main rib anchor holes 441 which are used for being matched with the main ribs in the second rigid body 2 in a one-to-one correspondence mode are distributed on the second annular connecting part 44 in an annular array mode, and second counter bores 442 used for fixing the main ribs are correspondingly arranged on one side of each second main rib anchor hole 441;
a plurality of first trapezoidal convex teeth 31 are arranged on the lower end surface of the first end plate 3 in an annular array, a plurality of second trapezoidal convex teeth 41 with the same number as the first trapezoidal convex teeth 31 are arranged on the upper end surface of the second end plate 4 in an annular array, wherein, a first matching groove 32 which is matched with the profile of the second trapezoidal convex tooth 41 and is used for matching with the second trapezoidal convex tooth 41 is formed between the adjacent first trapezoidal convex teeth 31 at intervals, a second matching groove 42 which is matched with the profile of the first trapezoidal convex tooth 31 and is used for matching with the first trapezoidal convex tooth 31 is formed between the adjacent second trapezoidal convex teeth 41 at intervals, in addition, the first matching groove 32 is provided with a first positioning protrusion 34 in a hemispherical structure corresponding to the middle of the inclined plane of the first trapezoidal convex tooth 31 on the two sides, and the inclined planes on the two sides of the second trapezoidal convex tooth 41 are provided with a first positioning groove 45 corresponding to and matched with the first positioning protrusion 34 in structure;
an extension part 43 with a frustum-shaped structure is arranged on the outer peripheral side of the lower end of the second end plate 4, the frustum-shaped small opening end of the extension part 43 is flat with the lower end face of the second end plate 4, the large opening end of the extension part 43 extends to the middle part of the second end plate 4 in the vertical direction, and the distance from the large opening end of the extension part 43 to the outer peripheral side of the second end plate 4 in the radial direction is 0.3-1 cm.
In this embodiment, as a possible implementation manner, further, the angle range of the acute angle portion of the first trapezoidal convex tooth 31 and the second trapezoidal convex tooth 41 is 45 degrees to 60 degrees, wherein if the angle is greater than 60 degrees, the slope of the guiding adjustment is steep when the first end plate 3 and the second end plate 4 are in butt-joint matching, so that the accuracy of the first contact matching between the first end plate 3 and the second end plate 4 is higher, otherwise, it is likely that the short bottom edge of the first trapezoidal convex tooth 31 of the first end plate 3 directly abuts against the short bottom edge of the second trapezoidal convex tooth 41 of the second end plate 4, and the difficulty of the rotational adjustment of the first rigid body 1 is higher, and if the angle is less than 45 degrees, the slope is gentle, so that the first trapezoidal convex tooth 31 of the first end plate 3 abuts against the slope of the second trapezoidal convex tooth 41 of the second end plate 4, the holding power is great and be difficult to further the direction gliding to adjust the cooperation well fast with first end plate 3 and second end plate 4, in addition, in this embodiment, as a possible implementation, further, the trapezoidal height of first trapezoidal dogtooth 31, second trapezoidal dogtooth 41 is 1 ~ 2 cm.
In this embodiment, as a possible implementation manner, further, the number of the first trapezoidal convex teeth 31 on the first end plate 3 is 8, the number of the first fitting grooves 32, the second trapezoidal teeth 41 and the second fitting grooves 42 corresponds to 8, and when the number is more than 8, since the sizes of the first end plate 3 and the second end plate 4 are relatively limited, the first trapezoidal convex tooth 31 and the second trapezoidal convex tooth 41 are made small due to the too many numbers of the first trapezoidal convex tooth 31 and the second trapezoidal convex tooth 41, which easily causes the structural strength to be reduced, when the first end plate 3 and the second end plate 4 are butted, impact deformation or other adverse conditions may occur, and when the number is less than 8, it is possible that the first trapezoidal tooth 31 and the second trapezoidal tooth 41 are formed to be large and the contact surfaces of the first end plate 3 and the second end plate 4 are reduced, thereby reducing the radial restraining force.
In order to facilitate welding, welding grooves are formed on the edges of the first trapezoidal convex tooth 31, the second trapezoidal convex tooth 41, the first matching groove 32 and the second matching groove 42 according to the conventional welding specification, namely, gradient gaps are formed to facilitate welding, and the reliability of welding combination is improved.
When the tubular stiff bodies are butted, the second stiff body 2 is driven into the foundation firstly, the upper end of the second stiff body 2 is exposed, the surfaces of the first end plate 3 and the second end plate 4 are polished to remove rust layers, the first stiff body 1 is suspended right above the second stiff body 2 through the pile driver and descends gradually, the first end plate 3 and the second end plate 4 are contacted gradually, the first trapezoidal convex teeth 31 and the first matching grooves 32 on the first end plate 3 are matched with the second matching grooves 42 and the first trapezoidal protrusions 41 on the second end plate 4, and after the first end plate 3 and the second end plate 4 are jointed, the jointing between the stiff bodies can be completed only by welding the joint seams.
Example 2
As shown in one of fig. 8 to 11, this embodiment is substantially the same as embodiment 1, except that, as a possible embodiment, the present embodiment further includes a plurality of reinforcing plates 5 and a plurality of fastening bolts 6, the number of the reinforcing plates 5 is the same as the number of the second trapezoidal teeth 41, one end of each reinforcing plate 5 is provided with a first kidney-shaped hole 51, the other end thereof is provided with a second kidney-shaped hole 52, the outer peripheral side of the first end plate 3 is provided with a first screw hole 35 corresponding to the upper side of the first fitting groove 32 and corresponding to the first kidney-shaped hole 51 of the reinforcing plate 5, the outer side of the second trapezoidal tooth 41 is provided with a second screw hole 46 and corresponding to the second kidney-shaped hole 52 of the reinforcing plate 5, the plurality of fastening bolts 6 are in one-to-one correspondence with the first kidney-shaped hole 51 and the second kidney-shaped hole 52 of the reinforcing plate 5 and have screw ends passing through the first kidney-shaped hole 51 and locked with the first screw hole 35 or have screw ends passing through the second kidney-shaped hole 52 and locked with the second screw hole 46, the first end plate 3 and the second end plate 4 are relatively fixed.
In order to avoid the reinforcing plate 5 generating a large piling resistance or being pushed vertically upwards by other soil rock, as a preferred embodiment, preferably, the reinforcing plate 5 is of an arc structure adapted to the outer surface of the first end plate 3 or the second end plate 4, and the thickness of the reinforcing plate 5 is not greater than the distance that the large opening end of the extension 43 on the second end plate 4 exceeds the outer circumferential side of the second end plate 4 in the radial direction, i.e. L1 is greater than or equal to L2, as a preferred embodiment, preferably, the edges of both ends of the reinforcing plate 5 are in arc transition.
In order to improve the connection strength, as a preferred embodiment, it is preferable that the aperture of the first threaded hole 35 is 1/3 to 3/5 of the length of the bottom side of the first engagement groove 32, the distance between the edge of the first threaded hole 35 and the bottom side of the first engagement groove 32 is not less than 5mm, the aperture of the second threaded hole 46 is 1/3 to 3/5 of the length of the short bottom side of the second trapezoidal tooth 41, and the distance between the edge of the second threaded hole 46 and the short bottom side of the second trapezoidal tooth 41 is not less than 5 mm.
When the tubular stiff bodies are butted, the second stiff body is firstly driven into the foundation, the upper end of the second stiff body with the second end plate 4 is exposed, the surfaces of the first end plate 3 and the second end plate 4 are respectively polished to remove rust layers, then the first stiff body is suspended right above the second stiff body through a pile driver and gradually descends, the first end plate 3 and the second end plate 4 are gradually contacted, the first trapezoidal convex teeth on the first end plate 3, the first matching grooves, the second matching grooves on the second end plate 4 and the first trapezoidal protrusions are matched, after the first end plate 3 and the second end plate 4 are jointed, the reinforcing plate 5 and the fastening bolts 6 are locked on the first end plate 3 and the second end plate 4 and are relatively fixed, and then the joint seams are welded to complete the butt joint between the stiff bodies.
The above only is the partial embodiment of the utility model discloses a not therefore restriction the utility model discloses a protection scope, all utilize the utility model discloses equivalent device or equivalent flow transform that the content of description and drawing was done, or direct or indirect application in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (8)
1. The utility model provides a prefabricated high strength tubular stiff body joint for composite foundation for upper and lower butt joint of tubular stiff body, wherein, the tubular stiff body that is located the upper end is established as first stiff body, and the stiff body that is located the lower extreme is established as second stiff body, first stiff body and second stiff body in all be equipped with a plurality of main muscle that extend to its both ends, the joint include:
the first end plate is of an annular plate-shaped structure and is fixedly arranged on the lower end face of the first stiff body, a first annular connecting part is arranged on the inner peripheral side of the upper end part of the first stiff body, a plurality of first main rib anchor holes used for being matched with main ribs in the first stiff body in a one-to-one corresponding mode are distributed in the first annular connecting part in an annular array mode, and first counter bores used for fixing the main ribs are correspondingly arranged on one side of each first main rib anchor hole;
the second end plate is of an annular plate-shaped structure and is fixedly arranged on the upper end face of the second rigid body, a second annular connecting part is arranged on the inner peripheral side of the lower end part of the second rigid body, a plurality of second main rib anchor holes used for being matched with main ribs in the second rigid body in a one-to-one correspondence mode are distributed in an annular array mode on the second annular connecting part, and second counter bores used for fixing the main ribs are correspondingly arranged on one side of each second main rib anchor hole;
it is characterized in that the preparation method is characterized in that,
the lower end face of the first end plate is provided with a plurality of first trapezoidal convex teeth in an annular array, the upper end face of the second end plate is provided with a plurality of second trapezoidal convex teeth in an annular array, the number of the second trapezoidal convex teeth is the same as that of the first trapezoidal convex teeth, first matching grooves which are matched with the profiles of the second trapezoidal convex teeth and are used for being matched with the second trapezoidal convex teeth are formed between adjacent first trapezoidal convex teeth at intervals, second matching grooves which are matched with the profiles of the first trapezoidal convex teeth and are used for being matched with the first trapezoidal convex teeth are formed between adjacent second trapezoidal convex teeth at intervals, in addition, the middle parts of inclined planes of the first trapezoidal convex teeth, corresponding to the two sides of the first matching grooves, are provided with first positioning bulges in a hemispherical structure, and first positioning grooves which are matched with the first positioning bulges are correspondingly arranged on inclined planes of the two sides of the second trapezoidal convex teeth;
the outer periphery of the lower end of the second end plate is provided with an extension part of a frustum-shaped structure, a frustum-shaped small opening end of the extension part is flat with the lower end face of the second end plate, a large opening end of the extension part extends to the middle of the second end plate in the vertical direction, and the distance of the large opening end of the extension part exceeding the outer periphery of the second end plate in the radial direction is 0.3-1 cm.
2. A prefabricated high-strength tubular rigid body joint for a composite foundation according to claim 1, further comprising a plurality of reinforcing plates and a plurality of fastening bolts, wherein the number of the reinforcing plates is the same as that of the second trapezoidal convex teeth, a first kidney-shaped hole is formed in one end of each reinforcing plate, a second kidney-shaped hole is formed in the other end of each reinforcing plate, a first threaded hole is formed in the outer peripheral side of each first end plate above the corresponding first matching groove and corresponds to the first kidney-shaped hole of each reinforcing plate, a second threaded hole is formed in the outer side face of each second trapezoidal convex tooth and corresponds to the second kidney-shaped hole of each reinforcing plate, the fastening bolts correspond to the first kidney-shaped hole and the second kidney-shaped hole of each reinforcing plate one by one, the screw ends of the fastening bolts penetrate through the first kidney-shaped hole and are locked and fixed with the first threaded hole, or the screw ends of the fastening bolts penetrate the second kidney-shaped hole and are locked and fixed with the second threaded hole, and the first end plate.
3. A prefabricated high-strength tubular body joint for a composite foundation according to claim 2, wherein said reinforcing plate has an arcuate configuration conforming to the outer surface of said first end plate or said second end plate and has a thickness not greater than the distance of the large opening end of the extension portion of said second end plate radially beyond the outer peripheral side of said second end plate.
4. A prefabricated high-strength tubular body joint for a composite foundation according to claim 2, wherein the diameter of the first threaded hole is 1/3-3/5 of the length of the bottom edge of the first matching groove, the distance between the edge of the first threaded hole and the bottom edge of the first matching groove is not less than 5mm, the diameter of the second threaded hole is 1/3-3/5 of the length of the short bottom edge of the second trapezoidal convex tooth, and the distance between the edge of the second threaded hole and the short bottom edge of the second trapezoidal convex tooth is not less than 5 mm.
5. A prefabricated high-strength tubular rigid body joint for a composite foundation according to claim 2, wherein edges of both ends of the reinforcing plate are arc-shaped transitions.
6. A prefabricated high-strength tubular body joint for a composite foundation according to claim 1, wherein the acute angle portion of each of the first trapezoidal convex tooth and the second trapezoidal convex tooth is inclined at an angle ranging from 45 degrees to 60 degrees.
7. A prefabricated high-strength tubular rigid body joint for a composite foundation according to claim 1, wherein the trapezoidal heights of the first trapezoidal convex tooth and the second trapezoidal convex tooth are both 1-2 cm.
8. A prefabricated high-strength tubular body joint for a composite foundation according to claim 1, wherein the number of the first trapezoidal protrusions on the first end plate is 8, and the number of the first fitting grooves, the second trapezoidal protrusions and the second fitting grooves corresponds to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022409597.9U CN213836635U (en) | 2020-10-26 | 2020-10-26 | Prefabricated high-strength tubular rigid body joint for composite foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022409597.9U CN213836635U (en) | 2020-10-26 | 2020-10-26 | Prefabricated high-strength tubular rigid body joint for composite foundation |
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| CN213836635U true CN213836635U (en) | 2021-07-30 |
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| CN202022409597.9U Active CN213836635U (en) | 2020-10-26 | 2020-10-26 | Prefabricated high-strength tubular rigid body joint for composite foundation |
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| CN (1) | CN213836635U (en) |
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