CN103938620A - Fast pile connecting method for prestressed concrete precast piles and lock-type connector pile - Google Patents
Fast pile connecting method for prestressed concrete precast piles and lock-type connector pile Download PDFInfo
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- CN103938620A CN103938620A CN201410140028.5A CN201410140028A CN103938620A CN 103938620 A CN103938620 A CN 103938620A CN 201410140028 A CN201410140028 A CN 201410140028A CN 103938620 A CN103938620 A CN 103938620A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011513 prestressed concrete Substances 0.000 title abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 8
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 96
- 239000004567 concrete Substances 0.000 claims description 83
- 238000003032 molecular docking Methods 0.000 claims description 44
- 230000003014 reinforcing effect Effects 0.000 claims description 42
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract 4
- 239000010959 steel Substances 0.000 abstract 4
- 238000003466 welding Methods 0.000 description 12
- 238000004080 punching Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Abstract
The invention relates to a fast pile connecting method for prestressed concrete precast piles and a lock-type connector pile in order to solve the problems that in the prior art, fast butt connection can not be conveniently performed. According to the method, upper-segment piles are in butt connection with lower-segment piles or upper-segment piles are in butt connection with lower-segment piles and the lower-segment piles are in butt connection with lower-segment piles again. According to the upper-segment piled and the lower-segment piled, the two ends of a plurality of steel bars which are fixedly connected with stirrups and annularly distributed at intervals are respectively connected with an inner sleeved-connection mechanism in a sleeved mode through a steel bar upset head to form the upper-segment prestressed concrete precast piles, and the two ends of a plurality of steel bars which are fixedly connected with stirrups and annularly distributed at interval are respectively connected with an inner sleeved-connection mechanism or an outer sleeved-connection mechanism in a sleeved mode through a steel bar upset head to form the lower-segment prestressed concrete precast piles. The butt connection is performed by installing the front end of the inner sleeved-connection mechanism and the front end of the outer sleeved-connection mechanism in a sleeved mode with one on the interior and the other one on the exterior and fixedly connecting the front end of the inner sleeved-connection mechanism and the front end of the outer sleeved-connection mechanism through snap rings and clamping grooves, and in other words, the front end of the inner sleeved-connection mechanism and the front end of the outer sleeved-connection mechanism adhere to each other through epoxy resin glue between the butt-connection end faces of the prestressed concrete precast piles; the cross section of each prestressed concrete precast pile is in the shape of a hollow or solid circle or an ellipse or a polygon or an arc-connected polygon with straight sides and arc-shaped sides in an alternating mode. The fast pile connecting method has the advantages that the butt-connection quality is easy to control, labor intensity is low, the efficiency is high and cost is low.
Description
Technical field
The present invention relates to a kind of prestressing force preformed pile, particularly relate to the quick pile extension method of a kind of prestress concrete preformed pile and lock type joint stake.
Background technology
Prestress concrete stake is the pile foundation material of current use amount maximum, and it comprises Pretensioned spun concrete piles, pretensioning prestressed concrete hollow square pile, pretensioning prestressed concrete solid square pile.At present, above-mentioned pile foundation material has changed the preparation method of cast in situs in the past in the time producing, and adopts the guaranteed factory floor streamline of quality production technology more.
Prestress concrete stake is the slender member that a kind of draw ratio is very large.The two ends of pretensioning prestressed concrete pile are often used end plate, and main purpose has: one, make all tendon entirety of whole pile, average stretch-draw; Two, the intensity of strengthening stake end, makes it in work progress, can bear larger pressure; Three, when stake and stake are welded to connect, use.
In work progress, " stake of preformed pile is pile foundation construction important process process with being connected of stake, and this technique has considerable influence to the quality control on construction of whole stake.At present, this connected mode is mainly to connect by saving up and down pile end plate welding and various mechanical erection, reaches the bonding strength of designing requirement.But the defect of these methods is also significantly, mainly contains: 1, construction technology quality is wayward, and the quality of welding is difficult to carry out the detections such as mechanics; 2, constructional difficulties, labor strength is large, and production efficiency is low, and security incident easily occurs, and 3, mechanical connection cost is large, anticorrosion and production tolerance is difficult to the shortcomings such as control.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect of prior art, and a kind of quick pile extension method of prestress concrete preformed pile of being convenient to quick pile extension is provided, and the invention still further relates to the lock type joint stake for realizing the method for the invention.
For achieving the above object, the quick pile extension method of prestress concrete preformed pile of the present invention is the lower joint stake of upper joint stake docking or the lower joint stake of upper joint stake docking, the lower joint stake lower joint stake of docking again; Described upper joint stake is the upper joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism respectively that is connected; Described lower joint stake is the lower joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism and overcoat connection mechanism respectively that is connected; The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile; The cross section of described prestress concrete preformed pile is that hollow or solid circle or the arc of ellipse or polygon or straight flange interval arc-shaped side connect polygon.It has advantages of that joint quality is easy to control and labour intensity is little, efficiency is high, cost is low.
As optimization, described inner sleeve connection mechanism by rear end for forming with the anterior front grafting body being equipped with of described rear block set with rear block set and the rear portion of the socket of described rod iron heading end, described front grafting body front portion is that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot; Overcoat connection mechanism be a rear end for the hollow sleeve body of rod iron heading end socket, hollow sleeve body middle front part is shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot and open annular slot, described external-open annular slot and in open equipped open type snap ring between annular slot; Described stirrup is wound around the described rod iron of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron two ends the stirrup spacing winding that is positioned at described rod iron middle part;
Described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile are the equipped described front grafting bodies of rear block set of described prestress concrete preformed pile with docking of lower joint prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body front end by described front grafting body front end and by described external-open annular slot with in open the open type snap ring clamping between annular slot and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
As optimization, described rear block set is shaped with front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body rear end periphery is shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve system has front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron heading, the described front grafting body of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body between clamp described open type snap ring.
As optimization, the rear ring end face of described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body of described rear block set are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
As optimization, the wide hole of the reducing through hole front end section internal diameter of rear block set matches with described rod iron heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet or rivet clasp with described rear block set or hollow sleeve body.Preferred described hollow sleeve body is close or equally from the wall thickness of A-P.Described rear block set and external week of hollow sleeve are shaped with the equally distributed axial notch in interval or fin.
It is that rear block set is penetrated on reinforcing bar that the upper stake of lock type joint stake of the present invention is made, and rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into or snaps in rear block set; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Lower making of lock type joint stake of the present invention is that rear block set and hollow sleeve body are penetrated on reinforcing bar, rear jumping-up carried out in reinforcing bar two, and jumping-up part anchors into respectively or snaps in rear block set and hollow sleeve body; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Comprise for one of docking upper joint stake and one or more lower joint stake up and down successively for realizing the lock type joint stake of said method of the present invention; Described upper joint stake is to be connected many rod iron two ends that stirrup ring-type spacing parallel arranging distributes respectively by the rod iron heading upper joint prestress concrete preformed pile that to be socketed described inner sleeve connection mechanism be reinforcing cage; Described lower joint stake is that be connected many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are socketed by rod iron heading the lower joint prestress concrete preformed pile that described inner sleeve connection mechanism and overcoat connection mechanism are reinforcing cage respectively; The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile; The cross section of described prestress concrete preformed pile is that hollow or solid circle or the arc of ellipse or polygon or straight flange interval arc-shaped side connect polygon.
As optimization, described inner sleeve connection mechanism by rear end for forming with the anterior front grafting body being equipped with of described rear block set with rear block set and the rear portion of the socket of described rod iron heading end, described front grafting body front portion is that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot; Overcoat connection mechanism be a rear end for the hollow sleeve body of rod iron heading end socket, hollow sleeve body middle front part is shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot and open annular slot, described external-open annular slot and in open equipped open type snap ring between annular slot; Described stirrup is wound around the described rod iron of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron two ends the stirrup spacing winding that is positioned at described rod iron middle part;
Described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile are the equipped described front grafting bodies of rear block set of described prestress concrete preformed pile with docking of lower joint prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body front end by described front grafting body front end and by described external-open annular slot with in open the open type snap ring clamping between annular slot and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
As optimization, described rear block set is shaped with front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body rear end periphery is shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve system has front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron heading, the described front grafting body of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body between clamp described open type snap ring.
As optimization, the rear ring end face of described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body of described rear block set are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
As optimization, the wide hole of the reducing through hole front end section internal diameter of rear block set matches with described rod iron heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise.Preferred described hollow sleeve body is close or equally from the wall thickness of A-P; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet or rivet clasp with described rear block set or hollow sleeve body.Described rear block set and external week of hollow sleeve are shaped with the equally distributed axial notch in interval or fin.
It is that rear block set is penetrated on reinforcing bar that the upper stake of lock type joint stake of the present invention is made, and rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into or snaps in rear block set; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Lower making of lock type joint stake of the present invention is that rear block set and hollow sleeve body are penetrated on reinforcing bar, rear jumping-up carried out in reinforcing bar two, and jumping-up part anchors into respectively or snaps in rear block set and hollow sleeve body; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Beneficial effect of the present invention:
1, pile extension has improved speed of application, can improve on year-on-year basis more than 80%.
2, be conducive to improve the quality of pile extension, reduce labor strength, improve workman's efficiency and labor safety coefficient.
3, the high efficiency of utilizing industry to manufacture effectively reduces cost, and industrialization of construction industry is brought into play in foundation construction.
Adopt after technique scheme, the quick pile extension method of prestress concrete preformed pile of the present invention and lock type joint stake have advantages of that joint quality is easy to control and labour intensity is little, efficiency is high, cost is low.
Brief description of the drawings
Fig. 1 is the inner sleeve connection mechanism of the quick pile extension method of prestress concrete preformed pile of the present invention and lock type joint stake docks assembling structural representation with overcoat connection mechanism part;
Fig. 2 is that structural representation is made in the upper stake of lock type joint stake of the present invention; It is that rear block set is penetrated on reinforcing bar, rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into or snaps in rear block set; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile.
Fig. 3 is that lower of lock type joint stake of the present invention makes structural representation; It is that rear block set and hollow sleeve body are penetrated on reinforcing bar, rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into respectively or snaps in rear block set and hollow sleeve body; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile.
Fig. 4 is stake docking operation and the docking structure schematic diagram up and down of lock type joint stake of the present invention.
Detailed description of the invention
As shown in the figure, the quick pile extension method of prestress concrete preformed pile of the present invention is the lower joint stake of upper joint stake docking or the lower joint stake of upper joint stake docking, the lower joint stake lower joint stake of docking again; Described upper joint stake is the upper joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism respectively that is connected; Described lower joint stake is the lower joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism and overcoat connection mechanism respectively that is connected; The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile.The cross section of described prestress concrete preformed pile is specially the square of hollow, and described rod iron is 8, also can connect polygon for the polygon beyond hollow or solid circular or oval or square or the arc of straight flange interval arc-shaped side.Connect shape, as square, rectangle, prismatic etc. more.
Be specially described inner sleeve connection mechanism by rear end for forming with the anterior front grafting body being equipped with of described rear block set with rear block set and the rear portion of the socket of described rod iron heading end, described front grafting body front portion is that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot; Overcoat connection mechanism be a rear end for the hollow sleeve body of rod iron heading end socket, hollow sleeve body middle front part is shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot and open annular slot, described external-open annular slot and in open equipped open type snap ring between annular slot; Described stirrup is wound around the described rod iron of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron two ends the stirrup spacing winding that is positioned at described rod iron middle part;
Described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile are the equipped described front grafting bodies of rear block set of described prestress concrete preformed pile with docking of lower joint prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body front end by described front grafting body front end and by described external-open annular slot with in open the open type snap ring clamping between annular slot and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
More specifically be shaped with front wide and rear narrow axial reducing through hole for described rear block set, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body rear end periphery is shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve system has front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron heading, the described front grafting body of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body between clamp described open type snap ring.
The rear ring end face of described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body of described rear block set are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
The wide hole of the reducing through hole front end section internal diameter of rear block set matches with described rod iron heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet with described rear block set or hollow sleeve body.Described rear block set and the preferred periphery of hollow sleeve body are shaped with the equally distributed axial notch in interval or fin.
It is that rear block set is penetrated on reinforcing bar that the upper stake of lock type joint stake of the present invention is made, and rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into or snaps in rear block set; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Lower making of lock type joint stake of the present invention is that rear block set and hollow sleeve body are penetrated on reinforcing bar, rear jumping-up carried out in reinforcing bar two, and jumping-up part anchors into respectively or snaps in rear block set and hollow sleeve body; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
As shown in the figure, comprise for one of docking upper joint stake 6 and one or more lower joint stake 7 up and down successively for realizing the lock type joint stake of said method of the present invention; Described upper joint stake 6 is to be connected many rod irons 1 two ends that stirrup 8 ring-type spacing parallel arrangings distribute respectively by the rod iron heading upper joint prestress concrete preformed pile that to be socketed described inner sleeve connection mechanism be reinforcing cage; Described lower joint stake 7 is that be connected many rod irons 1 two ends that stirrup 8 ring-type spacing parallel arrangings distribute are socketed by rod iron heading the lower joint prestress concrete preformed pile that described inner sleeve connection mechanism and overcoat connection mechanism are reinforcing cage respectively; Side template when stretch-draw end plate when label 9 is prefabricated in Fig. 2-3, label 10 are prefabricated.The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring 2 and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile.The cross section of described prestress concrete preformed pile is specially the square of hollow, and described rod iron is 8, also can connect polygon for the polygon beyond hollow or solid circular or oval or square or the arc of straight flange interval arc-shaped side.Connect shape, as square, rectangle, prismatic etc. more.
Being specially described inner sleeve connection mechanism is made up of with the anterior front grafting body 4 being equipped with of described rear block set 3 rear block set 3 and the rear portion of the 1 heading end socket of rear end and described rod iron, described front grafting body 4 front portions are that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot 42; Overcoat connection mechanism is the hollow sleeve body 5 of a rear end and rod iron 1 heading end socket, hollow sleeve body 5 middle front parts are shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot 42 and open annular slot 52, described external-open annular slot 42 and in open equipped open type snap ring 2 between annular slot 52.Described stirrup 8 is wound around the described rod iron 1 of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron 1 two ends the stirrup spacing winding that is positioned at described rod iron 1 middle part.
The docking mode of described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile and lower joint prestress concrete preformed pile is the equipped described front grafting body 4 of the rear block set 3 of described prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body 5 front ends by described front grafting body 4 front ends and by described external-open annular slot 42 with in open open type snap ring 2 clampings between annular slot 52 and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
More specifically be shaped with front wide and rear narrow axial reducing through hole for described rear block set 3, the neck of described rod iron 1 heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron 1 heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body 4 rear end peripheries are shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve body 5 is shaped with front wide and rear narrow axial reducing through hole, the neck of described rod iron 1 heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron 1 heading, the described front grafting body 4 of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body 4 between clamp described open type snap ring.
The rear ring end face of described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body 5 of described rear block set 3 are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
The wide hole of the reducing through hole front end section internal diameter of rear block set 3 matches with described rod iron 1 heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body 5 by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at 5 equipped described mouthfuls of formula snap ring 2 places of described hollow sleeve body is outwards protruded ringwise; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet with described rear block set or hollow sleeve body.Described rear block set and the preferred periphery of hollow sleeve body are shaped with the equally distributed axial notch in interval or fin.
It is that rear block set is penetrated on reinforcing bar that the upper stake of lock type joint stake of the present invention is made, and rear jumping-up is carried out in reinforcing bar two, and jumping-up part anchors into or snaps in rear block set; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Lower making of lock type joint stake of the present invention is that rear block set and hollow sleeve body are penetrated on reinforcing bar, rear jumping-up carried out in reinforcing bar two, and jumping-up part anchors into respectively or snaps in rear block set and hollow sleeve body; Carry out assembling two ends stretch board after stirrup welding according to the reinforcing bar of design drawing and national Specification quantity, hang in punching block stretch-draw and build pile, the maintenance demoulding goes stretch board to make.
Claims (10)
1. the quick pile extension method of prestress concrete preformed pile, is characterized in that the lower joint stake of joint stake docking or the lower joint stake of upper joint stake docking, the lower joint stake lower joint stake of docking again; Described upper joint stake is the upper joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism respectively that is connected; Described lower joint stake is the lower joint prestress concrete preformed pile that many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are reinforcing cage by rod iron heading socket inner sleeve connection mechanism and overcoat connection mechanism respectively that is connected; The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile; The cross section of described prestress concrete preformed pile is that hollow or solid circle or the arc of ellipse or polygon or straight flange interval arc-shaped side connect polygon.
2. quick pile extension method according to claim 1, it is characterized in that described inner sleeve connection mechanism by rear end for forming with the anterior front grafting body being equipped with of described rear block set with rear block set and the rear portion of the socket of described rod iron heading end, described front grafting body front portion is that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot; Overcoat connection mechanism be a rear end for the hollow sleeve body of rod iron heading end socket, hollow sleeve body middle front part is shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot and open annular slot, described external-open annular slot and in open equipped open type snap ring between annular slot; Described stirrup is wound around the described rod iron of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron two ends the stirrup spacing winding that is positioned at described rod iron middle part;
Described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile are the equipped described front grafting bodies of rear block set of described prestress concrete preformed pile with docking of lower joint prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body front end by described front grafting body front end and by described external-open annular slot with in open the open type snap ring clamping between annular slot and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
3. quick pile extension method according to claim 2, it is characterized in that described rear block set is shaped with front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body rear end periphery is shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve system has front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron heading, the described front grafting body of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body between clamp described open type snap ring.
4. quick pile extension method according to claim 3, the rear ring end face that it is characterized in that described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body of described rear block set are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
5. quick pile extension method according to claim 4, is characterized in that the wide hole of the reducing through hole front end section internal diameter of rear block set matches with described rod iron heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet with described rear block set or hollow sleeve body.
6. for realizing the lock type joint stake of method described in claim 1, it is characterized in that comprising for one of docking upper joint stake and one or more lower joint stake up and down successively; Described upper joint stake is to be connected many rod iron two ends that stirrup ring-type spacing parallel arranging distributes respectively by the rod iron heading upper joint prestress concrete preformed pile that to be socketed described inner sleeve connection mechanism be reinforcing cage; Described lower joint stake is that be connected many rod iron two ends that stirrup ring-type spacing parallel arranging distributes are socketed by rod iron heading the lower joint prestress concrete preformed pile that described inner sleeve connection mechanism and overcoat connection mechanism are reinforcing cage respectively; The docking of described prestress concrete preformed pile is by suit inside and outside described inner sleeve connection mechanism front end and described overcoat connection mechanism front end and is fixed together by snap ring and draw-in groove, and is bonded together by the epoxide-resin glue between the docking end face of described prestress concrete preformed pile; The cross section of described prestress concrete preformed pile is that hollow or solid circle or the arc of ellipse or polygon or straight flange interval arc-shaped side connect polygon.
7. the lock type joint stake of method according to claim 6, it is characterized in that described inner sleeve connection mechanism by rear end for forming with the anterior front grafting body being equipped with of described rear block set with rear block set and the rear portion of the socket of described rod iron heading end, described front grafting body front portion is that cylinder front end is shaped with ball convex plush copper, and middle part is shaped with external-open annular slot; Overcoat connection mechanism be a rear end for the hollow sleeve body of rod iron heading end socket, hollow sleeve body middle front part is shaped with the external trepanning for being socketed described front grafting body front portion, in described external trepanning, be shaped with in corresponding with described external-open annular slot and open annular slot, described external-open annular slot and in open equipped open type snap ring between annular slot; Described stirrup is wound around the described rod iron of annular distribution by helical form interval, and is less than according near the stirrup spacing being positioned at described rod iron two ends the stirrup spacing winding that is positioned at described rod iron middle part;
Described upper joint prestress concrete preformed pile and lower joint prestress concrete preformed pile or lower joint prestress concrete preformed pile are the equipped described front grafting bodies of rear block set of described prestress concrete preformed pile with docking of lower joint prestress concrete preformed pile, the docking of described prestress concrete preformed pile be socketed with described hollow sleeve body front end by described front grafting body front end and by described external-open annular slot with in open the open type snap ring clamping between annular slot and be bonded together by the epoxide-resin glue docking between end face of described prestress concrete preformed pile.
8. the lock type joint stake of method according to claim 7, it is characterized in that described rear block set is shaped with front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer in described reducing through hole middle part is socketed the front end heading of described rod iron heading, is shaped with interior screw thread in the wide hole of the front end section of described reducing through hole week; Described front grafting body rear end periphery is shaped with the male thread being spirally connected with described interior screw thread;
Described hollow sleeve system has front wide and rear narrow axial reducing through hole, the neck of the described rod iron heading of suit in narrow hole, the rear end section of described reducing through hole, the front wide and rear narrow reducer of postmedian of described reducing through hole is socketed the front end heading of described rod iron heading, the described front grafting body of week socket in wide hole, the front portion section of described reducing through hole, and and described front grafting body between clamp described open type snap ring.
9. the lock type joint stake of method according to claim 8, the rear ring end face that it is characterized in that described front end heading is ring slope hat; The reducing through hole reducing place of reducer, middle part and the reducing through hole postmedian reducing place of described hollow sleeve body of described rear block set are shaped with the ring slope seat corresponding with described ring slope hat; Described heading is to be formed by rod iron termination upsetting system after rod iron penetrates described rear block set or hollow sleeve body.
10. the lock type joint stake of method according to claim 9, is characterized in that the wide hole of the reducing through hole front end section internal diameter of rear block set matches with described rod iron heading external diameter; The reducing through hole postmedian reducing place of described hollow sleeve body by rear to front be that the corresponding ring slope seat of described ring slope hat, the central diameter cylindrical hole section corresponding with the side of described front end heading, flat ring end face or the arc slope relative with described front grafting body encircle end face successively; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; The periphery at the equipped described mouthful formula snap ring place of described hollow sleeve body is outwards protruded ringwise; When described heading upsetting is processed, also rivet with described rear block set or hollow sleeve body.
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| CN201410140028.5A CN103938620B (en) | 2014-04-10 | 2014-04-10 | The quick pile extension method of prestress concrete preformed pile and lock type joint stake |
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| CN201410140028.5A CN103938620B (en) | 2014-04-10 | 2014-04-10 | The quick pile extension method of prestress concrete preformed pile and lock type joint stake |
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| CN103938620B CN103938620B (en) | 2015-12-30 |
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| CN105666688A (en) * | 2016-03-30 | 2016-06-15 | 威海齐德新型建材有限公司 | Precast pile, pile body and production method |
| CN106013090A (en) * | 2016-07-26 | 2016-10-12 | 许伟敏 | Non-welded PHC pipe pile quick connecting method and pulling-resistant quick installing structure |
| WO2018041023A1 (en) * | 2016-08-29 | 2018-03-08 | 许伟敏 | Non-welded quick-fit joint of phc pipe pile |
| CN111206570A (en) * | 2020-02-28 | 2020-05-29 | 许顺良 | Prefabricated building structure |
| CN116988455A (en) * | 2023-09-26 | 2023-11-03 | 启东霓辉新材料科技有限公司 | Precast reinforced concrete square pile and construction method thereof |
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| CN103938620B (en) | 2015-12-30 |
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Effective date of registration: 20210305 Address after: 224000 Lizao neighborhood committee, Yandong Town, Tinghu District, Yancheng City, Jiangsu Province (19) Patentee after: Yancheng Tongli structural parts Co.,Ltd. Address before: 224014, Jiangsu, Yancheng City province west side of the North Road Patentee before: YANCHENG TONGLI NOVEL BUILDING MATERIALS Co.,Ltd. |
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Denomination of invention: Quick pile connection method of prestressed concrete precast pile and lock joint pile Effective date of registration: 20211019 Granted publication date: 20151230 Pledgee: Bank of Jiangsu Co.,Ltd. Yancheng branch Pledgor: Yancheng Tongli structural parts Co.,Ltd. Registration number: Y2021320000287 |
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Denomination of invention: The Method of Quick Connecting Prestressed Concrete Precast Piles and Lock Joint Piles Effective date of registration: 20221125 Granted publication date: 20151230 Pledgee: Bank of Jiangsu Co.,Ltd. Yancheng branch Pledgor: Yancheng Tongli structural parts Co.,Ltd. Registration number: Y2022320000741 |
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