CN109958125A - A kind of precast concrete pile connection structure - Google Patents

A kind of precast concrete pile connection structure Download PDF

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Publication number
CN109958125A
CN109958125A CN201910246747.8A CN201910246747A CN109958125A CN 109958125 A CN109958125 A CN 109958125A CN 201910246747 A CN201910246747 A CN 201910246747A CN 109958125 A CN109958125 A CN 109958125A
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CN
China
Prior art keywords
card
limit
end plate
cutting ferrule
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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CN201910246747.8A
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Chinese (zh)
Inventor
袁雪峰
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Tianhai Steel Bar Zhangjiagang Co Ltd
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Individual
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Priority to CN202010953908.XA priority Critical patent/CN112127358A/en
Priority to CN201910246747.8A priority patent/CN109958125A/en
Publication of CN109958125A publication Critical patent/CN109958125A/en
Withdrawn legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/24Prefabricated piles
    • E02D5/30Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/52Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
    • E02D5/526Connection means between pile segments
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/58Prestressed concrete piles

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a kind of precast concrete pile connection structures, including end plate I, end plate II, positioning pluging rod and card fixing component, the positioning pluging rod is mounted on end plate I, the card fixing component is mounted on end plate II, the card fixing component includes limit cutting ferrule, limit wedge card and holding force spring, limiting card set has cutting ferrule ontology and guide support portion, guide support portion is equipped with guide chute, cutting ferrule ontology is equipped with guiding sliding surface close to guide chute side, limit wedge is placed in guide chute, holding force spring pocket is on the outside of guide support portion, positioning pluging rod can be inserted into limit cutting ferrule, and limit wedge card is clamped with positioning pluging rod under the effect of the restoring force of holding force spring, realize the quick connection of concrete-pile, connection structure disclosed by the invention has structure simple, card fixing component is easy to assembly, simultaneously card fixing component with The advantages that end plate installation is simple.

Description

A kind of precast concrete pile connection structure
Technical field
The present invention relates to a kind of precast concrete pile connection structures.
Background technique
With the continuous improvement of building trade construction requirement, the docking of precast concrete is essential process, Conventional concrete uplift pile docking mode is anchor ear form and mechanical ratcheting form, and anchor ear form is pre- at two interconnected On the outside of concrete-pile end plate processed with three blocks of steel plates by two concrete-pile anchor ears together, the concrete-pile connection structure of this kind of form The problems such as needing thicker end plate, causing at high cost, production, mounting process complexity, be not easy to installation.
The concrete-pile connection structure of mechanical engaging type as shown in Figure 14, Figure 15 a and Figure 15 b, including, the first end plate 77 The first accommodating case 70, the first accommodating case are welded on the end face contacted with the second end plate 78, the first end plate 77 with concrete Multiple springs 72 and ratcheting part 73 are equipped in 70, ratcheting part is equipped with latch.The end contacted on second end plate 78 with concrete It is welded with the second accommodating case 71 on face, fixing piece 76 is equipped in the second accommodating case 71, connection is equipped on the second end plate 76 and inserts Bar fixation hole 780 connects and is equipped with connection inserted link 75 in inserted link fixation hole 780, connects inserted link 75 and the second end plate 78 and consolidates Determine the threaded connection of part 76, connecting has latch on the plug of inserted link 75, the plug of connection inserted link 75 may pass through the first end plate 77 On be that male connector throughbore 770 enters in the first accommodating case 70, and under the promotion of spring, by ratcheting part latch with connect inserted link On latch it is ratcheting, realize two concrete-piles connection.This kind of concrete-pile connection structure has the problem that 1, in concrete In stake production process, need to be respectively placed in ratcheting part, spring and fixing piece in different accommodating cases, and accommodating case is welded On end plate, cause production technology complexity, 2, be welded with accommodating case on end plate so that concrete-pile end formed it is multiple Cavity, and reduce the sectional area of concrete-pile end concrete, reduce the compressive property of concrete-pile;3, due to the company Binding structure is the connection for being mutually clamped by teeth, and then realizing two concrete-piles, however, it is ratcheting by teeth, it is inevitable Meeting so that ratcheting part and connection inserted link on generate gap, in turn result in and generate gap between concrete-pile, reduce extraction-resistant behavior; 4, need to process main reinforcement fixation hole and connection inserted link fixation hole (male connector throughbore) on end plate, (plug is logical for connection inserted link fixation hole Hole) and main reinforcement fixation hole be spaced apart on end plate, therefore cause the strength reduction of end plate.
Summary of the invention
The it is proposed of the present invention in view of the above problems, and researching and designing precast concrete pile connection structure have structure simple, It is easy to assembly, and the advantage that extraction-resistant behavior is good.
The technological means that the present invention uses is as follows:
A kind of precast concrete pile connection structure, including end plate I, end plate II, positioning pluging rod and card fixing component, institute It states positioning pluging rod to be mounted on end plate I, the card fixing component is mounted on end plate II, and the card fixing component includes limiting card Set, limit wedge card and holding force spring;The positioning pluging rod includes fixing seat and plug arranged on the fixing seat, the end Plate I is equipped with positioning pluging rod mounting hole, and the fixing seat is threadedly coupled with positioning pluging rod mounting hole, sets inside the limit cutting ferrule There is the accommodation space for being inserted into plug, the limit cutting ferrule includes limit cutting ferrule ontology and setting in limit cutting ferrule ontology one end Guide support portion, the end plate II be equipped with limit cutting ferrule mounting hole, it is described limit cutting ferrule ontology outer wall and limiting card It covers mounting hole to be threadedly coupled, there is more than one guide chute in the guide support portion, the limit wedge is placed in guiding In sliding slot, the limit cutting ferrule ontology is equipped with guiding sliding surface, the limit wedge card energy with one end inside that wedge card contacts is limited Along guiding sliding surface sliding in guide chute, the plug and limit wedge clamping synapsis are plug card access surface, the limit wedge Card is equipped with the wedge card card access surface with the wedge card sliding surface of guiding sliding face contact and with plug clamping face contact, the holding force bullet Spring is placed on the outside in guide support portion, and the outer wall of one end of the separate limit wedge card in the guide support portion, which is equipped with, prevents holding force The spring limiting structure that spring falls off, the holding force spring be located axially at limit wedge card and spring limiting structure it Between, the plug can be inserted into accommodation space and will limit wedge card push-in guiding sliding surface and plug clamping by holding force recoil of spring Between face and then realizes positioning pluging rod and limit the connection of cutting ferrule.
Further, inserted link bearing surface is equipped between the fixing seat and plug, the positioning pluging rod of the limit cutting ferrule is inserted The internal diameter of the one end entered is equipped with insertion confined planes, and when the plug is inserted into limit cutting ferrule, inserted link bearing surface and insertion are limited Face abuts.
Further, the quantity of the guide chute is 3 or 4, and the section of the guide chute is sector, described to lead It is 30-90 degree to the corresponding central angle of sector crosssection of sliding slot.
Further, the spring limiting structure is with the retention bead of guide support portion one or setting in guide support The clip spring structure of portion one end.
Further, at least one face in the guiding sliding surface, wedge card card access surface, wedge card sliding surface and plug card access surface It is equipped with anti-skid structure.
Further, the anti-skid structure is latch or taper thread.
Further, also have on the holding force spring close to one end of limit wedge card and bend towards the interior of holding force spring center line Recess portion, when the holding force spring is placed on the outside in guide support portion, the inner fovea part be placed in guide chute and with limit wedge Card is abutted far from one end of guiding sliding surface.
Further, one end that the limiting card puts on positioning pluging rod insertion also sets clamp structure.
Further, the first skirtboard is additionally provided on the end plate I, the end plate II is equipped with the second skirtboard.
Further, epoxy resin structural adhesive, I He of end plate are also coated between the end plate I and end plate II Outer edge between end plate II is fully welded connection.
Compared with the prior art, precast concrete pile connection structure of the present invention has the advantages that this hair Bright disclosed connection structure has structure simple, and components are few, and the main reinforcement of two sections or more piece stake convenient for assembling, and after connection exists On same axis, while improving extraction-resistant behavior, when effectively ensuring pile body by side pressure and/or shearing, pile body is resisted outer The uniformity of power.
Detailed description of the invention
Fig. 1 is the structure chart of precast concrete pile connection structure disclosed by the invention;
Fig. 2 is the enlarged diagram in Fig. 1 at A;
Fig. 3 is the structure chart of end plate I;
Fig. 4 is the structure chart of end plate II;
Fig. 5 is the structure chart for being set to inserted link;
Fig. 6 a is the structure chart for limiting cutting ferrule;
Fig. 6 b is the left view of Fig. 6 a;
Fig. 6 c is the right view of Fig. 6 a;
Fig. 7 a is the structure chart for limiting wedge card;
Fig. 7 b is the cross-sectional view in Fig. 7 a at D-D;
Fig. 8 a is the structure chart of holding force spring;
Fig. 8 b is the left view of Fig. 8 a;
Fig. 8 c is structure chart of the holding force spring pocket on limiting card set;
Fig. 9 connects to all have the precast concrete pile of latch in plug card access surface disclosed by the invention and wedge card card access surface The structure chart of structure only shows positioning pluging rod and limit wedge card in figure;
Figure 10 a is the precast concrete pile connection structure with reciprocal latch structure on guiding sliding surface disclosed by the invention, figure In positioning pluging rod, limit wedge card, limit cutting ferrule and holding force spring are only shown;
Figure 10 b is the enlarged drawing that limit wedge card and limiting card cover contact position in Figure 10 a;
Figure 11 a is the precast concrete pile connection structure on wedge card sliding surface disclosed by the invention with reciprocal latch structure, figure In positioning pluging rod, limit wedge card, limit cutting ferrule and holding force spring are only shown;
Figure 11 b is the enlarged drawing that limit wedge card and limiting card cover contact position in Figure 11 a;
Structure chart when Figure 12 a is the concrete-pile process with connection structure disclosed by the invention, end plate two End is respectively fixed with steel plate, and steel plate is connect by blending bolt with end plate;
Figure 12 b is the structure chart of the precast concrete pile obtained in Figure 12 a;
Figure 12 c is the enlarged drawing in Figure 12 b at B;
Figure 12 d is the enlarged drawing in Figure 12 b at C;
Figure 13 is the connection structure diagram of the two section concrete-piles with precast concrete pile connection structure disclosed by the invention;
The structure chart of Figure 14 mechanical engaging type concrete-pile connection structure in the prior art;
Figure 15 a is the structure chart of the first end plate of mechanical engaging type concrete-pile connection structure in the prior art
Figure 15 b is the structure chart of the second end plate of mechanical engaging type concrete-pile connection structure in the prior art.
In figure: 10, end plate I, 11, end plate II, 12, positioning pluging rod mounting hole, 13, limit cutting ferrule mounting hole, 14, master Muscle fixation hole, the 15, first skirtboard, the 16, second skirtboard, 17, welding groove, 2, be set to inserted link, 20, fixing seat, 21, plug, 22, Plug card access surface, 23, inserted link bearing surface, 3, limit cutting ferrule, 30, accommodation space, 31, limit cutting ferrule ontology, 32, guide support Portion, 33, guide chute, 34, guiding sliding surface, 36, card slot, 37, circlip, 38, groove, 39, insertion confined planes, 4, limit wedge Card, 40, wedge card sliding surface, 41, wedge card card access surface, 42, wedge card lateral surface, 43, wedge card guide surface, 44, wedge card and holding force spring The end face of contact, 5, holding force spring, 50, inner fovea part, the 60, first steel plate, the 61, second steel plate, the 62, first bolt, the 63, second spiral shell Bolt, the 64, first pockets, the 65, second pockets, the 70, first accommodating case, the 71, second accommodating case, 72, spring, 73, tooth Component, 75, connection inserted link, 76, fixing piece, the 77, first end plate, 770, male connector throughbore, the 78, second end plate, 780, connection Inserted link fixation hole, 8, main reinforcement.
Specific embodiment
It is as depicted in figs. 1 and 2 precast concrete pile connection structure disclosed by the invention, including end plate I 10, end plate II 11, positioning pluging rod 2 and card fixing component, the positioning pluging rod 2 are mounted on end plate I 10, and the card fixing component is mounted on On end plate II 11, the card fixing component includes limit cutting ferrule 3, limit wedge card 4 and holding force spring 5.
As shown in figure 3, being circumferentially evenly equipped with multiple groups positioning pluging rod mounting hole 12 and main reinforcement fixation hole on the end plate I 10 14, it is preferable that positioning pluging rod mounting hole 12 and main reinforcement fixation hole 14 are interconnected and form calabash shaped structure, as shown in figure 4, described Multiple groups limit cutting ferrule mounting hole 13 and main reinforcement fixation hole 14 are circumferentially evenly equipped on end plate II 11, it is preferable that limit cutting ferrule installation Hole 13 and main reinforcement fixation hole 14, which are interconnected, forms calabash shaped structure, and main reinforcement fixation hole 14 can be bellmouth, pier nose chuck knot Structure or threaded hole, to be respectively used to connection steel strand wires, PC rod iron and screw-thread steel, the specific structure of corresponding main reinforcement fixation hole is in It is announced in state's patent [201610002479.1], is known to the personnel of ability field, details are not described herein again.
As shown in figure 5, the positioning pluging rod 2 includes fixing seat 20 and the plug 21 being arranged in fixing seat 20, it is described solid Reservation 20 is threadedly coupled with the positioning pluging rod mounting hole 12 of end plate I 10.
As shown in Fig. 6 a, Fig. 6 b and Fig. 6 c, the limit cutting ferrule 3 includes limit cutting ferrule ontology 31 and setting in limit cutting ferrule The outer wall in the guide support portion 32 of 31 one end of ontology, the limit cutting ferrule ontology 31 is equipped with external screw thread, limits cutting ferrule ontology 31 It is threadedly coupled with limit cutting ferrule mounting hole 13, the accommodation space 30 for being inserted into plug 21, institute is equipped with inside the limit cutting ferrule 3 Stating has more than one guide chute 33 in guide support portion 32, in the present embodiment, the quantity of guide chute is 3, described Limit wedge card 4 is placed in guide chute 33, and the limit cutting ferrule ontology 31 is equipped with guiding with one end inside that wedge card 4 contacts is limited Sliding surface 34, the limit wedge card 4 can slide in guide chute 33 along guiding sliding surface 34, the plug 21 and limit wedge card 4 contact positions are plug card access surface 22, and as shown in figs. 7 a and 7b, the limit wedge card 4 is equipped with to be contacted with guiding sliding surface 34 Wedge card sliding surface 40 and the wedge card card access surface 41 that is contacted with plug card access surface 22, it is preferable that limit wedge card 4 further includes in inserting Wedge card guide surface 43 on the inside of head insertion one end, wedge card sliding surface 40, wedge card card access surface 41, wedge card lateral surface 42, wedge card guiding It is pentagonal configuration that the end face 44 that face 43 and wedge card are contacted with holding force spring, which forms section, and wedge card guide surface 43 can be in plug Guiding role, the quick insertion of convenient plug are played in insertion process.The holding force spring 5 is placed on the outer of guide support portion 32 Side, the outer wall of one end of the separate limit wedge card 4 in the guide support portion 32 are equipped with the spring limit for preventing holding force spring from falling off Bit architecture, the holding force spring 5 are located axially between limit wedge card 4 and spring limiting structure, 21 energy of plug It is inserted into accommodation space 30 and the push-in of wedge card 4 guiding sliding surface 34 and plug card access surface 22 will be limited by the rebound of holding force spring 5 Between so realize positioning pluging rod and limit the connection of cutting ferrule, and then the quick connection of precast concrete pile may be implemented.From figure In 14 as can be seen that existing engaging type concrete-pile connection structure, due to connection inserted link and ratcheting part be by latch into Therefore the mutually ratcheting connection for realizing concrete-pile of row is bound between the latch between connection inserted link and ratcheting part with clearance, Causing the withdrawal resistance of concrete-pile reduces, and concrete-pile connection structure disclosed by the invention, when plug is inserted into limit cutting ferrule Afterwards, guiding sliding surface, limit wedge card and plug, which contact with each other, realizes being interconnected for three conical surfaces, therefore, after engaging not Gap can be generated, there is stronger extraction-resistant behavior.
Further, as shown in Fig. 2, Fig. 5 and Fig. 6 a, inserted link bearing surface is equipped between the fixing seat 20 and plug 21 22, the internal diameter of one end of the positioning pluging rod insertion of the limit cutting ferrule 3 is equipped with insertion confined planes 39, when the plug 21 is inserted into When limiting in cutting ferrule 3, inserted link bearing surface 22 is abutted with insertion confined planes 39.Due to being provided with inserted link bearing surface and insertion limit Face so that the length in plug insertion limit cutting ferrule determines, and then can be prevented since positioning pluging rod is inserted into limiting card Length in set is too long, when positioning pluging rod is returned and pulled out, causes to generate gap between plug and limit wedge card, reduce concrete-pile it Between withdrawal resistance the problem of.
Further, the quantity of the guide chute 33 is 3 or 4, and the section of the guide chute 33 is sector, institute The corresponding central angle of sector crosssection for stating guide chute 33 is 30-90 degree, correspondingly, the quantity of limit wedge card is also 3 or 4 A, the section of limit wedge card is sector, limits the sector crosssection pair of the sector crosssection corresponding central angle and guide chute of wedge card The central angle answered is adapted (being equal or slightly less than), and limiting card set can be made to have preferable stress performance, improve positioning Stress performance between the intensity and limit cutting ferrule, limit wedge card and plug of cutting ferrule, improves extraction-resistant behavior, and extend use Service life.
It can be the retention bead with guide support portion one in the spring limiting structure disclosed by the invention, that is, It is machined with bulge-structure on the outer circle wall of the end in guide support portion, for preventing holding force spring from taking off in guide support portion It falls.Preferably, as shown in Fig. 2 and Fig. 6 a, spring limiting structure is the clip spring structure that guide support portion one end is arranged in, specifically Ground is machined with card slot 36 on the outer wall of the end in guide support portion 32, circlip 37 is caught in card slot 36, and spring limiting structure is When with the retention bead of guide support portion one, it is not easy to for holding force spring being mounted in guide support portion, when spring retainer knot When structure is clip spring structure, first holding force spring can be inserted in from the end in guide support portion, be then stuck in card slot by circlip In order to limit to holding force spring, this kind of structure facilitates the installation of holding force spring.
Further, in the guiding sliding surface 34, wedge card card access surface 41, wedge card sliding surface 40 and plug card access surface 22 extremely A few face is equipped with anti-skid structure.
As shown in figure 9, in the present embodiment, being equipped with anti-skid structure in plug card access surface 22 and wedge card card access surface 41, prevent Slipped Clove Hitch structure can be latch or taper thread, it is preferable that anti-skid structure is taper thread, as shown, working as plug card access surface and wedge card When being clamped face contact, the latch or taper thread of two card access surfaces are mutually clamped, and are improved and are set between inserted link and limit wedge card Frictional resistance, improve the withdrawal resistance of concrete-pile.
It is as as-shown-in figures 10 a and 10b that second of embodiment of anti-skid structure is oriented to sliding surface 34 in this embodiment It is equipped with reciprocal latch structure, it is preferable that the height of latch gradually increases outward along the inside of guiding sliding surface, when limit wedge card enters After being oriented to sliding surface and plug card access surface, wedge card lateral surface is abutted with the latch on guiding sliding surface, can prevent limit wedge card The opposite sliding with guiding sliding surface, and then the withdrawal resistance of concrete-pile can be improved.
If Figure 11 a and Figure 11 b show the third embodiment of anti-skid structure, in this embodiment, wedge card sliding surface 40 It is equipped with reciprocal latch structure, after limit wedge card enters guiding sliding surface and plug card access surface, guiding sliding surface and limit cutting ferrule sheet Angle between internal wall is equipped with latch with wedge card sliding surface and abuts, and can prevent limit wedge card and be oriented to the opposite of sliding surface Sliding, and then the withdrawal resistance of concrete-pile can be improved.The specific setting of anti-skid structure is not limited to embodiment in above-mentioned 3, can To be configured as needed.
Holding force spring 5 can be common cylinder spring, it is preferable that as shown in Fig. 8 a, Fig. 8 b and Fig. 8 c, the holding force spring One end on 5 close to limit wedge card 4 also has the inner fovea part 50 for bending towards 5 center line of holding force spring, when the holding force spring 5 is placed on When the outside in guide support portion 32, the inner fovea part 50 is placed in guide chute 33 and with limit wedge card 4 far from guiding sliding surface One end abut, holding force spring be equipped with inner fovea part 50, increase holding force spring and limit wedge card contact area, avoid limiting Wedge is stuck in guide chute in motion process to occur tilting and cause phenomena such as stuck, and applies preferably rebound to limit wedge card Power.
Further, one end of positioning pluging rod insertion also sets clamp structure on the limit cutting ferrule 3, in the present embodiment, Clamp structure is that can will limit cutting ferrule in two grooves 38 for being set to inserted link and being inserted into one end symmetrical machining of limit cutting ferrule 3 When being installed on toward end plate II, it is caught in two grooves using tool for being rotated to it, it is made to be screwed into end plate II It limits in cutting ferrule mounting hole.
Further, shown in as shown in Figure 1, Figure 3 and Figure 4, the first skirtboard 15, the end are additionally provided on the end plate I 10 Plate II 11 is equipped with the second skirtboard 16, is also coated with epoxy resin structural adhesive between the end plate I and end plate II, specifically, Before the connection of two concrete-piles, epoxy resin structural is all injected in the end face of both ends head plate and the accommodation space of limit cutting ferrule Then glue inserts a plug into the connection that two concrete-piles are realized in limit cutting ferrule again, due to being injected with epoxy in limit cutting ferrule Resin structure glue, therefore, after epoxy resin structural adhesive solidification, plug, limit wedge card and limit cutting ferrule become one structure, and increase Strong extraction-resistant behavior, and cause it to get rusty or corrode in the card fixing component that can enter between two concrete to avoid water and gas and Influence extraction-resistant behavior.Further, shown in as shown in Figure 1, Figure 3 and Figure 4.The end face of one end that end plate I and end plate II are connected to each other Outer edge on be also machined with welding groove 17, when both ends head plate docking after, by both ends head plate from welding groove weld, Outer edge between the end plate I and end plate II is fully welded connection, can further increase anti-between concrete-pile Pull out performance.
Preferably, as shown in Figure 3 and Figure 4, the sequence of the positioning pluging rod mounting hole 12 on end plate I and main reinforcement fixation hole 14 Direction is contrary with the sequence of limit cutting ferrule mounting hole 13 and main reinforcement fixation hole on end plate II, in the present embodiment, end The sequence direction of positioning pluging rod mounting hole 12 and main reinforcement fixation hole 14 in head plate I be clockwise (as shown by the arrows in Figure 3, most Upper end is the big end of calabash shaped structure in left side, and small end is on right side, and the big end of the lowermost calabash shaped structure is in right side, small end In left side, the calabash shaped structure of other positions successively rotates), limit cutting ferrule mounting hole 13 and main reinforcement fixation hole on end plate II Sequence direction be counterclockwise (as shown by the arrows in Figure 4, be topmost calabash shaped structure big end on right side, small end in left side, And the big end of the lowermost calabash shaped structure, in left side, small end is successively rotated in right side, the calabash shaped structure of other positions).It adopts With the end plate of the structure, as shown in figure 13, the main reinforcement 8 of single concrete-pile can be parallel with the axis of concrete-pile, meanwhile, (docking of 2 section stakes is shown) in figure when two sections or more piece concrete-pile connect, as shown, concrete-pile is each pair of corresponding Main reinforcement 8 is on same straight line and (only shows a pair of of main reinforcement in figure), and main reinforcement is on same axis, effectively ensures stake Experience side pressure and/or shearing when, pile body resists the uniformity of external force.
Concrete-pile connection structure disclosed by the invention can be adapted for the various concretes such as tubular pole, square pile and shaped pile Native stake.
The processing process of concrete-pile with precast concrete pile connection structure disclosed by the invention is as follows;
As shown in Figure 12 a, Figure 12 b, Figure 12 c and Figure 12 d, end plate I 10 and end plate II 11 are fixed on concrete-pile The both ends of main reinforcement, i.e. concrete-pile main reinforcement both ends are separately mounted to be formed in the main reinforcement fixation hole of end plate I and end plate II mixed Solidifying soil pile cages, are placed with the first steel plate 60 on the outside of one end of end plate I 10, and the is placed on the outside of II 11 one end of end plate Two steel plates 61, steel plate are equipped with multiple through-holes identical with inserted link mounting hole (limit cutting ferrule mounting hole) quantity is set to, through-hole Position is corresponding with the position of inserted link mounting hole (limit cutting ferrule mounting hole), is equipped with the first bolt in the through-hole of the first steel plate 61 62, the screw rod of the first bolt 62 passes through through-hole and is threadedly coupled with the positioning pluging rod mounting hole 12 on end plate I 10, and the first spiral shell The screw rod of bolt 62 extends slightly out the other end of end plate I 10, and one end of end plate II 11 is equipped with the second steel plate 61, the second steel plate 61 Connect by the second bolt 63 with end plate II 11, i.e., the screw rod of the second bolt 63 pass through the second steel plate 61 through-hole after with end Limit cutting ferrule mounting hole on plate II 11 is threadedly coupled, and the screw rod of the second bolt 63 stretches out the length of the other end of end plate II 11 It is larger, the reinforcement cage structure that steel plate, end plate and main reinforcement are constituted then is placed in concrete-pile and is poured in mold, Interal fixation At the both ends of mold, prestressing force, and the casting concrete into concrete-pile mold, concrete setting are applied to main reinforcement by steel plate It removes steel plate and bolt to form precast concrete pile afterwards, on the precast concrete pile of formation, the first bolt 62 stretches out end The part of plate I can stretch out the part of end plate II in meeting in the first pockets of formation 64 of concrete-pile, the second bolt 63 In the second pockets of formation 65 of concrete-pile.Positioning pluging rod is installed in the inserted link mounting hole on end plate I, first accommodates Groove 64 can there are certain accommodation spaces for the fixing seat of positioning pluging rod, are mounted on end plate in order to adjust positioning pluging rod I length.Card fixing component is mounted in the limit cutting ferrule mounting hole of end plate II after being assembled integrally structure in the factory, Second pockets 65 be used to accommodate part that card fixing component grows relative to end plate (i.e. guide support portion, holding force spring with And the parts such as circlip).Different precast concrete piles may be implemented quickly to be mechanically connected by positioning pluging rod and card fixing component. By the process of the above concrete-pile it is found that concrete-pile connection structure disclosed by the invention, is not changing existing coagulation On the basis of native stake processing technology, only the length of the fixed connection bolt of steel plate and end plate is increased, so that it may apply this hair Bright disclosed connection structure, while the connection connects and enough has structure simple, processing and installation easily and fast, while having resistance to plucking The advantages that performance is good.
Concrete connecting structure disclosed by the invention has the advantage that relative to existing hood type or engaging type structure
(1) in terms of compressive resistance
Engaging type concrete-pile reduces concrete-pile end face coagulation since concrete-pile end face is provided with multiple accommodating cases The sectional area of soil, therefore reduce the compressive resistance of concrete-pile.Concrete-pile connection structure disclosed by the invention, concrete-pile end Face only has the lesser pockets for being used to accommodate card fixing component, and due to being injected with epoxy resin structural adhesive in limit cutting ferrule. After epoxy resin structural adhesive solidification, limits wedge card and limit cutting ferrule and concrete groove becomes one structure, will not influence mixed The compressive resistance of solidifying soil stake.
(2) in terms of withdrawal resistance
Engaging type concrete-pile is that mutually ratcheting realization concrete-pile is carried out by the latch on connection inserted link and ratcheting part Connection, therefore, certain clearance will necessarily be had by connecting between the latch between inserted link and ratcheting part, cause the anti-of concrete-pile Pull out force reduces, and concrete-pile connection structure disclosed by the invention, after plug is inserted into limit cutting ferrule, guiding sliding surface, limit Position wedge card and plug contact with each other and realize being interconnected for three conical surfaces, therefore, gap will not be generated after engaging, have compared with Strong extraction-resistant behavior.
(3) in terms of by lateral pressure and/or shearing resistance
Hood type concrete-pile during installation, uses anchor ear after needing to sling a section concrete-pile and dock with another section stake Plate will connect stake and be connected with each other, therefore, the main reinforcement of two sections concrete-pile interconnected it is difficult to ensure that on same axis, because This not on the same axis due to main reinforcement, will cause when the concrete-pile using anchor ear form is by lateral pressure or shearing force Discontinuity leads to the impaired of concrete-pile.And concrete-pile connection structure disclosed by the invention on end plate I due to determining The sequence direction and limit cutting ferrule mounting hole and main reinforcement fixation hole on end plate II of position inserted link mounting hole and main reinforcement fixation hole It is sequentially contrary, so that the main reinforcement of concrete-pile interconnected is on same axis, pile body is effectively ensured by side When pressure and/or shearing, pile body resists the uniformity of external force.
(4) product is processed
The concrete-pile of hood type structure needs to add on end plate due to being attached both ends head plate using anchor ear plate Work groove, therefore end plate thickness is increased, the increase of product cost is caused,
The concrete-pile of engaging type structure in process, needs spring, ratcheting part and fixing piece being placed in accommodating case In, and accommodating case is welded on end plate respectively, therefore, this kind of structure has components more, and processing technology is complicated, expends and adds Between working hour and processing cost.
Concrete-pile connection structure disclosed by the invention, before not changing the structure or production technology of existing concrete stake It puts, it is only necessary to which the length for increasing screw rod stretching end plate saves product cost relative to hood type and engaging type structure.
(5) production application
Since the end plate of the concrete-pile of hood type structure needs to increase thickness, the end of the concrete-pile of engaging type structure Head plate needs to weld accommodating case, and therefore, the end plate of two kinds of structures is not end plate form specified in national standard, therefore, With the high problem of processing cost.
Meanwhile the concrete-pile of engaging type structure, in concrete-pile casting process, concrete grout enters appearance in order to prevent In case, needs that inserted link fixation hole will be connected with filler and inserted link through-hole is all blocked, and after the completion of concrete-pile pours, go Except filler, production is caused to bother.
Concrete-pile connection structure disclosed by the invention, the end plate of concrete-pile are the end plate of national regulations, therefore With at low cost.
(6) site operation
The concrete-pile of hood type in the construction process, needs that a section concrete-pile is sling and rotated, in order to Screw hole on upper and lower two sections concrete-pile corresponds, and then connects two concrete-piles by anchor ear plate, increases scene The working strength of construction personnel.
Concrete-pile connection structure disclosed by the invention, what plug can be convenient is inserted into card fixing component, reduces and applies The working strength of work worker.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.

Claims (10)

1. a kind of precast concrete pile connection structure, including end plate I (10), end plate II (11), positioning pluging rod (2) and card Gu component, the positioning pluging rod (2) is mounted on end plate I (10), and the card fixing component is mounted on end plate II (11), Be characterized in that: the card fixing component includes limit cutting ferrule (3), limit wedge card (4) and holding force spring (5);The positioning pluging rod (2) plug (21) for including fixing seat (20) and being arranged on fixing seat (20), the end plate I (10) are equipped with positioning pluging rod Mounting hole (12), the fixing seat (20) are threadedly coupled with positioning pluging rod mounting hole (12), are equipped with inside the limit cutting ferrule (3) For being inserted into the accommodation space (30) of plug (21), the limit cutting ferrule (3) includes that limit cutting ferrule ontology (31) and setting are limiting The guide support portion (32) of position cutting ferrule ontology (31) one end, the end plate II (11) are equipped with limit cutting ferrule mounting hole (13), The outer wall of limit cutting ferrule ontology (31) is threadedly coupled with limit cutting ferrule mounting hole (13), is had on the guide support portion (32) Have more than one guide chute (33), the limit wedge card (4) is placed in guide chute (33), the limit cutting ferrule ontology (31) it is equipped with guiding sliding surface (34) on the inside of the one end contacted with limit wedge card (4), the limit wedge card (4) can be in guide chute (33) along guiding sliding surface (34) sliding in, the plug (21) and limit wedge card (4) contact position are plug card access surface (22), institute Limit wedge card (4) is stated to be equipped with the wedge card sliding surface (40) contacted with guiding sliding surface (34) and contact with plug card access surface (22) Wedge card card access surface (41), the holding force spring (5) is placed on the outside of guide support portion (32), the guide support portion (32) The outer wall of one end far from limit wedge card (4) is equipped with the spring limiting structure for preventing holding force spring (5) from falling off, the holding force bullet Spring (5) is located axially between limit wedge card (4) and spring limiting structure, and the plug (21) can be inserted into accommodation space It (30) and will be between limit wedge card (4) push-in guiding sliding surface (34) and plug card access surface (22) by holding force spring (5) rebound And then it realizes positioning pluging rod and limits the connection of cutting ferrule.
2. precast concrete pile connection structure according to claim 1, it is characterised in that: the fixing seat (20) and plug (21) inserted link bearing surface (23) are equipped between, the internal diameter of one end of the positioning pluging rod insertion of limit cutting ferrule (3), which is equipped with, to be inserted Enter confined planes (39), when the plug is inserted into limit cutting ferrule, inserted link bearing surface is abutted with insertion confined planes.
3. precast concrete pile connection structure according to claim 1 or 2, it is characterised in that: the guide chute (33) Quantity be 3 or 4, the section of the guide chute (33) is sector, the corresponding circle of the sector crosssection of the guide chute Heart angle is 30-90 degree.
4. precast concrete pile connection structure according to claim 1, it is characterised in that: the spring limiting structure be with The retention bead of guide support portion one or the clip spring structure that guide support portion one end is set.
5. precast concrete pile connection structure according to claim 1, it is characterised in that: the guiding sliding surface, wedge card At least one face is equipped with anti-skid structure in card access surface, wedge card sliding surface and plug card access surface.
6. precast concrete pile connection structure according to claim 5, it is characterised in that: the anti-skid structure be latch or Taper thread.
7. precast concrete pile connection structure according to claim 1, it is characterised in that: leaned on the holding force spring (5) One end of nearly limit wedge card (4) also has the inner fovea part (50) for bending towards holding force spring center line, when the holding force spring (5) is placed on When the outside in guide support portion (32), the inner fovea part (50) is placed in guide chute (33) and with limit wedge card (4) far from leading It is abutted to one end of sliding surface (34).
8. precast concrete pile connection structure according to claim 1, it is characterised in that: fixed on the limit cutting ferrule (3) One end of position inserted link insertion also sets clamp structure.
9. precast concrete pile connection structure according to claim 1, it is characterised in that: on the end plate I (10) also Equipped with the first skirtboard (15), the end plate II (11) is equipped with the second skirtboard (16).
10. precast concrete pile connection structure according to claim 9, it is characterised in that: the end plate I (10) and end Epoxy resin structural adhesive, the outside between the end plate I (10) and end plate II (11) are also coated between head plate II (11) Edge is fully welded connection.
CN201910246747.8A 2019-03-29 2019-03-29 A kind of precast concrete pile connection structure Withdrawn CN109958125A (en)

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Application publication date: 20190702