CN113737779A - Steel bar connection adjusting nut, assembly and precast pile and foundation bearing platform connecting structure - Google Patents
Steel bar connection adjusting nut, assembly and precast pile and foundation bearing platform connecting structure Download PDFInfo
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- CN113737779A CN113737779A CN202111229471.6A CN202111229471A CN113737779A CN 113737779 A CN113737779 A CN 113737779A CN 202111229471 A CN202111229471 A CN 202111229471A CN 113737779 A CN113737779 A CN 113737779A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 238000004873 anchoring Methods 0.000 claims abstract description 85
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 210000003205 muscle Anatomy 0.000 claims description 35
- 230000002787 reinforcement Effects 0.000 claims description 26
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/223—Details of top sections of foundation piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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Abstract
The invention discloses a steel bar connection adjusting nut, a steel bar connection adjusting assembly, a precast pile and a foundation bearing platform connection structure. The steel bar connecting adjusting nut comprises an adjusting nut main body, wherein the adjusting nut main body is provided with an external thread and an internal thread used for being connected with the steel bar; the assembly comprises the steel bar connecting and adjusting nut, a conversion nut and more than two anchoring clamping pieces; the connecting structure of the precast pile and the foundation bearing platform comprises the steel bar connecting adjusting nut or the steel bar connecting adjusting assembly. The invention simplifies the construction process, is convenient for construction on the construction site, saves the construction time, can be quickly installed by one person, and reduces the installation difficulty and the working strength of operators.
Description
Technical Field
The invention relates to a steel bar connection adjusting nut, a steel bar connection adjusting assembly, a precast pile and a foundation bearing platform connection structure.
Background
With the vigorous development of the precast concrete pile foundation in the building industry of China, in hidden projects, the modes of anchoring the main reinforcement of the precast concrete pile into the pile cap of the connecting pile top are mainly divided into two types: firstly, hollow square piles and tubular piles represented by precast pile centrifugal production are connected with pile cap steel bar anchoring of a connecting pile top in a steel bar anchoring mode through a core filling embedded steel bar cage mode, or steel bar anchoring connection is carried out in a mode that an end plate is welded with an auxiliary steel bar and the core filling embedded steel bar cage mode (such as 10G409 in a drawing set); secondly, the prestressed solid square pile represented by the prefabricated pile vibration method is connected with a pile cap reinforcing steel bar anchor connected with the pile top in a way of pre-embedding deformed steel bars in the pile body, and is connected with a pile top in a way of chiseling off concrete welding anchor bars at the elevation of the pile top or in a way of connecting end plate welding anchor bars (such as page of fig. 20G361 and 71/72/73). In the prior art, welding of anchoring ribs on a construction site has certain influence on the environment, and the operation difficulty of workers on the construction site is high; the secondary core filling anchoring prolongs the construction time by more than two working days while increasing the consumption of steel; and the requirement that the prestressed tendons should be directly anchored into the bearing platform cannot be completely met by the requirement of building foundation basic design specification GB 50007-2011.
In order to solve the problem, the prior patent discloses a connection structure, which comprises a joint, locking plate and closure stopping piece, be equipped with the first connection chamber and the second connection chamber of mutual intercommunication in the joint, the second is connected the chamber and is the toper chamber of radial shrink, the locking plate is arranged in the second and is connected the intracavity and form the closure chamber, the precast pile owner muscle runs through the closure chamber, be equipped with the internal thread in the first connection chamber, cushion cap anchor muscle tip pier nose postprocessing external screw thread is in order to with joint threaded connection, closure stopping piece is arranged in between locking plate and the cushion cap anchor muscle, closure stopping piece makes the joint and forms the connection structure through locking plate tight mutually that expands with the precast pile owner muscle that runs through the closure chamber.
The existing connecting structure has the following defects: 1. in order to realize the connection between the bearing platform anchoring rib and the joint, the bearing platform anchoring rib needs pier head treatment, which causes complex construction process and inconvenient site construction, specifically, a large number of precast piles need to be driven in a construction site, after each precast pile is driven into the ground, the height of the pile top is different, so that the distance between the pile top of each pile and the elevation of the pile top is different, when the height of the pile top is lower than the elevation of the pile top, a connecting component is needed to be connected with the bearing platform anchoring rib to reach the elevation of the pile top, because the height of the pile top of each precast pile is different, the length of the bearing platform anchoring rib needing to be connected is also different, the length of the bearing platform anchoring rib needing to be connected of each precast pile needs to be recorded in the construction site, the bearing platform anchoring rib with corresponding length is intercepted, then the intercepted bearing platform anchoring rib is transported to a corresponding factory to carry out pier head treatment and external thread treatment at the pier head, then, the prefabricated pile main reinforcement is transported to the construction site to be connected with the bearing platform anchoring reinforcement, so that the construction process is complicated, and a large amount of construction time is consumed; 2. when carrying out precast pile owner muscle and cushion cap anchor muscle through connection structure and being connected, before cushion cap anchor muscle and articulate, need operating personnel to hold the joint always to avoid connecting, locking plate and closure stopping piece to drop from precast pile owner muscle, increased the installation degree of difficulty, increased operating personnel's working strength simultaneously.
Disclosure of Invention
Aiming at the problems, the invention researches and designs a steel bar connection adjusting nut, a component and a precast pile and foundation bearing platform connecting structure. The technical means adopted by the invention are as follows:
the utility model provides a steel bar connection adjusting nut, includes the adjusting nut main part, be equipped with the external screw thread in the adjusting nut main part and be used for the internal thread with the steel bar connection.
Further, the external thread of the adjusting nut body is a thread capable of matching with the internal thread of M27 x 2.
Furthermore, the internal thread of the adjusting nut main body is a thread which can be matched with the end of a tapped steel bar.
A steel bar connecting component comprises the steel bar connecting adjusting nut, a conversion nut and more than two anchoring clamping pieces;
an anchoring card accommodating cavity and an adjusting nut connecting cavity are arranged in the conversion nut, the anchoring card accommodating cavity gradually shrinks from one end close to the adjusting nut connecting cavity to the other end along the axial direction, and the adjusting nut is connected with the adjusting nut connecting cavity;
the anchor clamping pieces are arranged in the anchor clamping piece accommodating cavities, more than two anchor clamping pieces surround a locking cavity for locking the reinforcing steel bars, and when the adjusting nut is connected with the conversion nut, the adjusting nut can be abutted against the anchor clamping pieces, so that the anchor clamping pieces shrink the locking cavity under the action of the force of the adjusting nut and the inner walls of the anchor clamping piece accommodating cavities.
Furthermore, the anchoring clamping piece comprises a sliding surface matched with the inner wall of the anchoring clamping piece accommodating cavity and a locking surface matched with the main reinforcement of the precast pile, and the locking cavity is defined by more than two locking surfaces.
Furthermore, an anti-slip structure is arranged in the locking cavity. The anti-slip structure can be a tooth structure, a thread structure or a protrusion structure.
Furthermore, the outer wall of the adjusting nut main body is provided with a first clamping plane, and the outer wall of the conversion nut is provided with a second clamping plane.
A precast pile and foundation bearing platform connecting structure comprises a precast pile and a bearing platform, wherein the precast pile comprises a precast pile main rib and a connecting sleeve connected with the end of the precast pile main rib, an internal thread is arranged in the connecting sleeve, a bearing platform anchoring rib is arranged in the bearing platform, the bearing platform anchoring rib is connected with the connecting sleeve through a steel bar connection adjusting nut, the external thread of the steel bar connection adjusting nut is matched with the internal thread of the connecting sleeve, and the external thread of the bearing platform anchoring rib is matched with the internal thread of the steel bar connection adjusting nut.
A precast pile and foundation bearing platform connecting structure comprises a precast pile and a bearing platform, wherein the precast pile comprises a precast pile main rib and a precast pile end plate connected with the end of the precast pile main rib, a threaded hole is formed in the precast pile end plate, a bearing platform anchoring rib is arranged in the bearing platform, the bearing platform anchoring rib is connected with the threaded hole of the precast pile end plate through a steel bar connection adjusting nut, the external thread of the steel bar connection adjusting nut is matched with the threaded hole of the precast pile end plate, and the external thread of the bearing platform anchoring rib is matched with the internal thread of the steel bar connection adjusting nut.
A precast pile and foundation bearing platform connecting structure comprises a precast pile and a bearing platform, wherein the precast pile comprises a precast pile main rib, a bearing platform anchoring rib is arranged in the bearing platform and is connected with the precast pile main rib through a reinforcing steel bar connecting component, the end part of the precast pile main rib is fixed in a locking cavity through an anchoring clamping piece, and external threads of the bearing platform anchoring rib are matched with internal threads of a reinforcing steel bar connecting adjusting nut.
Compared with the prior art, the connecting structure of the steel bar connecting adjusting nut, the assembly, the precast pile and the foundation bearing platform has the following advantages:
1. the adjusting nut can be directly connected with the bearing platform anchoring rib, pier head treatment on the bearing platform anchoring rib is not needed, the construction process is simplified, construction on a construction site is facilitated, and the construction time is saved;
2. before cushion cap anchor muscle is connected with adjusting nut, can link into an organic whole structure earlier with conversion nut, adjusting nut and anchor card and precast pile owner muscle, the installation of being convenient for, simultaneously, also no longer need operating personnel to hold conversion nut before cushion cap anchor muscle is connected with adjusting nut always, single can accomplish the installation fast, reduces installation degree of difficulty and operating personnel's working strength.
Drawings
Fig. 1 is a schematic structural diagram of an adjusting nut according to an embodiment of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic structural view of a reinforcing bar connecting assembly according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a conversion nut according to an embodiment of the present invention.
Fig. 5 is a right side view of fig. 4.
Fig. 6 is a schematic structural diagram of an anchor card according to an embodiment of the present invention.
Fig. 7 is a sectional view a-a of fig. 6.
Fig. 8 is a schematic view of a precast pile and a foundation cap connection structure according to a third embodiment of the present invention.
Fig. 9 is a schematic view of a connection structure of a main reinforcement of a precast pile and an anchor reinforcement of a bearing platform according to a third embodiment of the present invention.
Fig. 10 is a schematic view of a precast pile and a foundation cap connection structure according to the fourth embodiment of the present invention.
Fig. 11 is a schematic view of a connection structure between a main reinforcement of a precast pile and an anchor reinforcement of a bearing platform according to a fourth embodiment of the present invention.
Fig. 12 is a schematic view of a precast pile and a foundation cap connection structure according to the fifth embodiment of the present invention.
Fig. 13 is a schematic view of a connection structure between a main reinforcement of a precast pile and an anchor reinforcement of a bearing platform according to a fifth embodiment of the present invention.
Fig. 14 is a schematic view of a precast pile and a foundation cap connection structure according to a sixth embodiment of the present invention.
Detailed Description
Example one
As shown in fig. 1 and 2, the adjusting nut 2 for connecting the steel bars comprises an adjusting nut body, wherein an external thread and an internal thread used for being connected with the steel bars are arranged on the adjusting nut body. In a preferred embodiment, the external thread of the adjusting nut body is a thread capable of matching with the internal thread of M27 × 2, and since the specification of the threaded holes of the connecting sleeve and the end plate for tensioning is M27 × 2, the thread of the specification is set so that the reinforcing steel bar connecting adjusting nut can be directly connected with the threaded hole of the connecting sleeve or the end plate of the precast pile. In a preferred embodiment, still be equipped with first clamping face 26 on the outer wall of the one end of adjusting nut main part, be equipped with first clamping face 26 can be convenient carry out the centre gripping to adjusting nut through the clamping tool and then realize rotating it to conveniently realize screwing up each other of adjusting nut and conversion nut, thereby guarantee the locking of anchor card and precast pile owner muscle, in this embodiment, adjusting nut 2 keeps away from the outer wall of the one end of anchor card butt portion 20 is the polygon prism structure. A guide surface 27 is also provided at the end where the first clamping surface 26 is provided to facilitate the abutment of the platform anchoring bar with the adjusting nut. The internal thread of the adjusting nut main body is a thread matched with the end of the tapped steel bar, and can be set according to the diameter of the common steel bar, so that the steel bar is not required to be subjected to heading treatment, and can be connected with the steel bar connecting adjusting nut after being directly tapped. Because the heading device is a large-scale mechanical device generally, the heading device cannot be arranged on a construction site, the structure is simple, the cost is low, heading treatment is omitted when the reinforcing steel bars are connected, the reinforcing steel bars do not need to be transported away for processing, tapping and assembling can be completed on the site, the operation process is simple, the construction efficiency is greatly improved, and extra cost such as construction site drainage cost caused by low construction efficiency is greatly reduced.
Example two
As shown in fig. 3, a reinforcing bar connecting assembly includes a conversion nut 1, an adjustment nut 2 and a plurality of anchor clamping pieces 3, wherein the adjustment nut 2 is the adjustment nut described in the first embodiment.
As shown in fig. 4 and 5, the conversion nut 1 is of a sleeve structure, an anchor card accommodating cavity 10 and an adjusting nut connecting cavity 11 are arranged in the conversion nut 1, the anchor card accommodating cavity 10 is gradually contracted from the end close to the adjusting nut connecting cavity 11 toward the other end along the axial direction, in this embodiment, an internal thread is arranged in the adjusting nut connecting cavity 11, and the anchor card accommodating cavity 10 is a tapered cavity gradually contracted from the end close to the adjusting nut connecting cavity 11 toward the other end along the axial direction.
Adjusting nut 2 with adjusting nut connects the chamber 11 and connects, adjusting nut 2 orientation the one end that the chamber 10 was held to the anchor card is first butt end 20, adjusting nut 2 is equipped with the precast pile owner muscle that is used for holding precast pile owner muscle 51 tip in the adjusting nut and holds chamber 21 and be used for the cushion cap anchor muscle connection chamber 22 of being connected with cushion cap anchor muscle 41, as shown in fig. 1 and fig. 2, in this embodiment, be equipped with the first external screw thread 28 of being connected with adjusting nut connection chamber on the adjusting nut 2 outer wall, be equipped with the internal thread chamber 23 that link up to the other end by one end in the adjusting nut 2, internal thread chamber 23 is close to the part of anchor card 3 does the precast pile owner muscle holds chamber 21, internal thread chamber 23 is kept away from the part of anchor card 3 does cushion cap anchor muscle connection chamber 22.
The anchor card 3 is placed in the anchor card accommodating cavity 10, a plurality of anchor cards 3 enclose a locking cavity 30 for locking the precast pile main reinforcement, when the adjusting nut 2 is connected with the conversion nut 1, the first abutting end 20 abuts against an end portion of the anchor card 3 to push the anchor card 3 to move along an axial direction of the conversion nut 1 so as to enable the locking cavity 30 to shrink along a radial direction of the conversion nut 1, specifically, the anchor card 3 comprises a sliding surface 32 for matching with an inner wall of the anchor card accommodating cavity 10 and a locking surface 33 for matching with the precast pile main reinforcement 51, a plurality of locking surfaces 33 enclose the locking cavity 30, and when the adjusting nut 2 is connected with the conversion nut 1, the adjusting nut 2 abuts against one end (first abutting end 20) of the anchor card 3 and an anchor card end 37 to push the anchor card 3 to move along an axial direction of the conversion nut 1 so as to enable the locking cavity 30 to move along an axial direction of the conversion nut 1 The radial direction of the conversion nut 1 contracts.
The process of connecting the precast pile main reinforcement and the bearing platform anchoring reinforcement by using the precast pile and foundation bearing platform reinforcement connecting component disclosed by the invention is as follows:
firstly, inserting a main reinforcement of the precast pile into one end of a conversion nut, which is provided with an anchoring card accommodating cavity, and extending out of the other end of the conversion nut for a certain length; then the anchoring card is arranged in the anchoring card accommodating cavity; secondly, lifting the conversion nut upwards to enable the end part of the main reinforcement of the precast pile to retract into the conversion nut and penetrate through a locking cavity defined by the anchoring clamping pieces and to be exposed for a certain length; then the adjusting nut is connected with the conversion nut, the end part of the main reinforcement of the precast pile is arranged in the main reinforcement accommodating cavity of the precast pile of the adjusting nut, and when the adjusting nut is connected with the conversion nut, the first abutting end of the adjusting nut abuts against the end part of the anchoring clamping piece to push the anchoring clamping piece to move along the axial direction of the conversion nut so as to enable the locking cavity to shrink along the radial direction of the conversion nut to lock the main reinforcement of the precast pile; and finally, connecting the bearing platform anchoring ribs with the selected length with adjusting nuts to realize the connection of the main ribs of the precast pile and the bearing platform anchoring ribs.
The precast pile and foundation pile cap steel bar connecting component disclosed by the invention has the advantages that the adjusting nut is arranged, the adjusting nut can be connected with the conversion nut and is abutted against the end part of the anchoring clamping piece to realize the locking of the anchoring clamping piece and the precast pile main bar, therefore, when the precast pile main bar is connected with the pile cap anchoring bar, the conversion nut, the adjusting nut and the anchoring clamping piece are all small in structure, so that an operator can carry out installation, meanwhile, the conversion nut, the adjusting nut and the anchoring clamping piece are connected with the precast pile main bar to form an integral structure (namely the conversion nut, the adjusting nut and the anchoring clamping piece are fixed at the upper end part of the precast pile main bar), and the operator is not required to hold the conversion nut all the time before the pile cap anchoring bar is connected with the adjusting nut, so that the installation difficulty and the working strength of the operator are reduced. Furthermore, the inner diameter of the bearing platform anchoring rib connecting cavity of the adjusting nut is matched with the diameter of the bearing platform anchoring rib, so that pier head treatment on the bearing platform anchoring rib is not needed, the construction process is simplified, construction on the construction site is facilitated (the bearing platform anchoring rib only needs end tapping, and the end tapping of the bearing platform anchoring rib can be directly processed on the construction site), and the construction time is saved.
In the invention, the inner diameter of the locking cavity can be set according to the requirement (specification of the precast pile main bar), the precast pile main bar can be a PC steel bar, a steel strand or deformed steel bar, and the like, when the precast pile main bar is a size PC steel bar, the size is generally 7.1/9.0/10.7/12.6, the size of the internal thread cavity in the adjusting nut can be set according to the requirement (specification of the bearing platform anchoring bar), the bearing platform anchoring bar is generally an anchoring deformed steel bar, and the specification (such as a drawing set 10G409) is generally phi 16, phi 18, phi 20 or phi 22.
In the invention, the plurality of anchor clamping pieces 3 can be of a split structure, when the anchor clamping pieces are arranged in the anchor clamping piece accommodating cavities, the end parts of the main ribs of the precast pile extend out of the ends of the conversion nuts, which are provided with the adjusting nuts, and are connected with the cavities by a certain length, and the plurality of anchor clamping pieces are sequentially arranged in the 6 anchor clamping piece accommodating cavities along the gaps between the main ribs of the precast pile and the conversion nuts.
Preferably, as shown in fig. 6 and 7, the plurality of anchor clamping pieces are of an integral structure before being installed in the anchor clamping piece accommodating cavity, specifically, a through hole is processed in the center of the anchor clamping piece body 34 of the cone frustum structure to form the locking cavity 30, a notch 31 and an open slot 35 are processed on the anchor clamping piece body 34, the notch is processed so that the plurality of anchor clamping pieces can be clasped with the preformed pile main rib when sliding along the anchor clamping piece accommodating cavity to realize the locking of the anchor clamping pieces and the preformed pile main rib, the outer wall surface of the anchor clamping piece body is a sliding surface matched with the anchor clamping pieces, the open slot is processed to form the plurality of anchor clamping pieces, the adjacent two anchor clamping pieces are not cut through to form the connecting portion 36, in this embodiment, the open slot is processed from the inner diameter side to the outer diameter side of the anchor clamping piece body and is formed on the outer diameter side, the open slot can also be processed from one end of the anchor clamping piece body to the other end, and a connection portion is formed at one end. The connecting portion 36 is used for connecting a plurality of anchor clamping pieces of petal-shaped structures together, so that the anchor clamping pieces are of an integral structure before the anchor clamping pieces are installed in the conversion nuts, when the anchor clamping pieces are installed, the precast pile main ribs can firstly extend out of one end of the conversion nuts, which is provided with the adjusting nut connecting cavity, for a certain length, then the anchor clamping pieces are integrally sleeved on the precast pile main ribs, the anchor clamping pieces slide into the anchor clamping piece accommodating cavities along the precast pile main ribs, then the conversion nuts are lifted upwards, so that the end portions of the precast pile main ribs are retracted into the conversion nuts and extend out of the end portions of the anchor clamping pieces for a certain length, the adjusting nuts and the conversion nuts are screwed, in the process of connecting the conversion nuts and the adjusting nuts, the end portions (first abutting ends) of the adjusting nuts are in contact with the end portions of the anchor clamping pieces and drive the anchor clamping pieces to move along the axial directions of the anchor clamping pieces, and when the anchor clamping pieces are abutted by the first abutting ends, the connecting part is disconnected, so that the anchoring cards of the petal-shaped structures radially contract under the action of the inner walls of the accommodating cavities of the anchoring cards to realize locking of the anchoring cards and the main ribs of the precast pile, and the thickness of the connecting part is set according to needs and is generally about 0.5 mm. Because the anchor card is the further equipment process of having simplified of an organic whole structure before the anchor card holds the chamber of packing into, reduced working strength, saved the engineering time, simultaneously, because the anchor card is the parallel and level that a plurality of anchor card tip have been guaranteed to an organic whole structure before the anchor card holds the chamber of packing into, improved the locking power of anchor card and precast pile owner muscle. Preferably, the anchoring card has two pieces, and one side of the two anchoring cards is connected through the connecting part, and the other side is provided with a notch.
Further, as shown in fig. 1 and 2, the adjusting nut 2 is far away from the outer wall surface of one end of the anchoring card abutting portion 20, and a first clamping surface 26 is further arranged on the outer wall surface, and the adjusting nut can be conveniently clamped by a clamping tool through the first clamping surface 26 so as to rotate the adjusting nut, so that the adjusting nut and the conversion nut are conveniently screwed down, and the anchoring card and the preformed pile main rib are locked.
Further, the outer wall surface of the conversion nut is also provided with a second clamping surface, and in this embodiment, the outer wall of the conversion nut is of a polygonal structure so as to be clamped by a clamping tool (such as a wrench) when the conversion nut is connected with the adjusting nut.
Further, as shown in fig. 4, the end of the platform anchoring rib connecting cavity 22 away from the anchoring card accommodating cavity 10 is further provided with a guide surface 27 so as to facilitate the butt joint of the platform anchoring rib and the adjusting nut.
Further, an anti-slip structure is arranged in the locking cavity 30, and the anti-slip structure can be a tooth structure, a thread structure or a protrusion structure. In this embodiment, a thread structure is processed in the locking cavity so as to increase the locking force between the anchoring card and the main reinforcement of the precast pile.
EXAMPLE III
As shown in fig. 8 and 9, a precast pile and foundation bearing platform connection structure, including precast pile 5 and bearing platform 4, precast pile 5 includes precast pile owner muscle 51 and the connecting sleeve 52 of being connected with precast pile owner muscle 51's end, be equipped with the internal thread in the connecting sleeve 52, be equipped with bearing platform anchor muscle 41 in the bearing platform 4, bearing platform anchor muscle 41 is through embodiment one steel bar connection adjusting nut 2 link to each other with connecting sleeve 52, the external screw thread of steel bar connection adjusting nut 2 and the interior screw-thread fit of connecting sleeve 52, the external screw thread of bearing platform anchor muscle 41 and the interior screw-thread fit of steel bar connection adjusting nut 2. The embodiment is a non-cutting pile top and bearing platform connecting structure with a connecting sleeve.
Example four
As shown in fig. 10 and fig. 11, a precast pile and foundation bearing platform connection structure includes precast pile 5 and bearing platform 4, precast pile 5 includes precast pile main reinforcement 51 and precast pile end plate 53 connected with precast pile main reinforcement 51 end, be equipped with the screw hole on precast pile end plate 53, be equipped with bearing platform anchor muscle 41 in the bearing platform 4, bearing platform anchor muscle 41 is through the first steel bar connection adjusting nut 2 of embodiment and the screw hole of precast pile end plate 53 link to each other, the external screw thread of steel bar connection adjusting nut 2 and the screw hole cooperation of precast pile end plate 53, the external screw thread of bearing platform anchor muscle 41 and the internal screw thread cooperation of steel bar connection adjusting nut 2. The embodiment is a connecting structure of a pile top and a bearing platform without cutting a pile, wherein the pile top and the bearing platform are provided with end head plates.
EXAMPLE five
As shown in fig. 12 and 13, a precast pile and foundation pile cap connection structure includes a precast pile 5 and a pile cap 4, the precast pile 5 includes a precast pile main rib 51, a pile cap anchoring rib 41 is provided in the pile cap 4, the pile cap anchoring rib 41 is connected to the precast pile main rib 51 through the reinforcing bar connection assembly according to the second embodiment, the anchoring card 3 fixes the end of the precast pile main rib 51 in the locking cavity, and the external thread of the pile cap anchoring rib 41 is matched with the internal thread of the reinforcing bar connection adjusting nut 2.
EXAMPLE six
As shown in fig. 14, a connecting structure of a precast pile and a foundation pile cap is a connecting structure of a pile extension pile top and a pile cap, and includes a precast pile 5 and a pile cap 4, where the precast pile 5 includes a precast pile main rib 51, a pile extension part 42 is disposed below the pile cap 4, an additional reinforcing steel bar 43 is disposed in the pile extension part 42, and the pile cap anchoring rib 41 is disposed in the pile extension part 42. The connection structure of the precast pile main reinforcement 51 and the bearing platform anchoring reinforcement 41 in the embodiment is the same as that in the first embodiment.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a steel bar connection adjusting nut, includes the adjusting nut main part, its characterized in that: the adjusting nut body is provided with an external thread and an internal thread used for being connected with the steel bar.
2. The adjusting nut for reinforcing bar connection according to claim 1, wherein: the external thread of the adjusting nut body is a thread capable of being matched with the internal thread of M27 multiplied by 2.
3. The adjusting nut for reinforcing bar connection according to claim 1 or 2, wherein: the internal thread of the adjusting nut main body is a thread which can be matched with the end of a tapped steel bar.
4. The utility model provides a reinforcing bar coupling assembling which characterized in that: the steel bar connection adjusting nut comprises the steel bar connection adjusting nut of any one of claims 1 to 3, and further comprises a conversion nut and more than two anchoring clamping pieces;
an anchoring card accommodating cavity and an adjusting nut connecting cavity are arranged in the conversion nut, the anchoring card accommodating cavity gradually shrinks from one end close to the adjusting nut connecting cavity to the other end along the axial direction, and the adjusting nut is connected with the adjusting nut connecting cavity;
the anchor clamping pieces are arranged in the anchor clamping piece accommodating cavities, more than two anchor clamping pieces surround a locking cavity for locking the reinforcing steel bars, and when the adjusting nut is connected with the conversion nut, the adjusting nut can be abutted against the anchor clamping pieces, so that the anchor clamping pieces shrink the locking cavity under the action of the force of the adjusting nut and the inner walls of the anchor clamping piece accommodating cavities.
5. The rebar junction assembly of claim 4, wherein: the anchoring clamping piece comprises a sliding surface matched with the inner wall of the accommodating cavity of the anchoring clamping piece and a locking surface matched with the main reinforcement of the precast pile, and the locking cavity is defined by more than two locking surfaces.
6. The rebar junction assembly of claim 5, wherein: and an anti-skid structure is arranged in the locking cavity.
7. The rebar junction assembly of claim 6, wherein: the outer wall of the adjusting nut main body is provided with a first clamping plane, and the outer wall of the conversion nut is provided with a second clamping plane.
8. The utility model provides a precast pile and basic cushion cap connection structure, includes precast pile and cushion cap, the precast pile includes precast pile owner muscle and the connecting sleeve who is connected with precast pile owner muscle end, be equipped with the internal thread in the connecting sleeve, be equipped with cushion cap anchor muscle in the cushion cap, its characterized in that: the bearing platform anchoring rib is connected with the connecting sleeve through the steel bar connection adjusting nut as claimed in any one of claims 1 to 3, the external thread of the steel bar connection adjusting nut is matched with the internal thread of the connecting sleeve, and the external thread of the bearing platform anchoring rib is matched with the internal thread of the steel bar connection adjusting nut.
9. The utility model provides a precast pile and basic cushion cap connection structure, includes precast pile and cushion cap, the precast pile includes precast pile owner muscle and the precast pile end board of being connected with precast pile owner muscle end, be equipped with the screw hole on the precast pile end board, be equipped with cushion cap anchor muscle, its characterized in that in the cushion cap: the bearing platform anchoring rib is connected with the threaded hole of the precast pile end plate through the steel bar connection adjusting nut as claimed in any one of claims 1 to 3, the external thread of the steel bar connection adjusting nut is matched with the threaded hole of the precast pile end plate, and the external thread of the bearing platform anchoring rib is matched with the internal thread of the steel bar connection adjusting nut.
10. The utility model provides a precast pile and basic cushion cap connection structure, includes precast pile and cushion cap, the precast pile includes the owner muscle, be equipped with cushion cap anchor muscle in the cushion cap, its characterized in that: the bearing platform anchoring rib is connected with the precast pile main rib through the steel bar connecting assembly of any one of claims 4 to 7, the anchoring clamping piece fixes the end part of the precast pile main rib in the locking cavity, and the external thread of the bearing platform anchoring rib is matched with the internal thread of the steel bar connecting adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111229471.6A CN113737779A (en) | 2021-10-21 | 2021-10-21 | Steel bar connection adjusting nut, assembly and precast pile and foundation bearing platform connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111229471.6A CN113737779A (en) | 2021-10-21 | 2021-10-21 | Steel bar connection adjusting nut, assembly and precast pile and foundation bearing platform connecting structure |
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| CN113737779A true CN113737779A (en) | 2021-12-03 |
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| CN202111229471.6A Pending CN113737779A (en) | 2021-10-21 | 2021-10-21 | Steel bar connection adjusting nut, assembly and precast pile and foundation bearing platform connecting structure |
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| CN (1) | CN113737779A (en) |
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