Summary of the invention
The purpose of this invention is to provide a kind ofly bear that tensile stress is strong, technology is simple, whole solid side of piling bar point fully prestressed concrete that can suitability for industrialized production and processing method thereof.
The present invention to achieve these goals, the technical scheme that is adopted is: whole solid side stake of a kind of piling bar point fully prestressed concrete and processing method are provided, and whole solid side of described piling bar point fully prestressed concrete comprises a point, pile body, pile cover; Described pile body twines prestressing force master muscle by the stirrup spiral, and stirrup is tied up with main muscle intersection and is connected; Described stake point inserts pile body by the sharp dowel of stake, and the sharp dowel of stake is tied up with the stirrup intersection and is connected; Described pile cover inserts pile body by the pile cover dowel, and the pile cover dowel is tied up with the stirrup intersection and is connected; Whole solid side's stake concrete monobloc cast of described piling bar point fully prestressed concrete.
Described prestressing force master muscle is one or more combinations in four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle or anistree prestressing force master muscle or the independent prestressing force master muscle, described four jiaos of prestressing force master muscle comprise four prestressing force master muscle, be distributed in four jiaos of pile body, constitute square; Four jiaos of prestressing force master muscle comprise four prestressing force master muscle in described, are evenly distributed in square four limits that are made of four jiaos of prestressing force master muscle; Described anistree prestressing force master muscle comprises eight or 12 or ten six roots of sensation prestressing force master muscle, is evenly distributed in square four limits that are made of four jiaos of prestressing force master muscle; Described independent prestressing force master muscle comprises at least one prestressing force master muscle, is distributed in square four limits that are made of four jiaos of prestressing force master muscle; Pile body cross section four jiaos of prestressing force masters muscle with constitute square with interior four jiaos of prestressing force master muscle or anistree prestressing force master muscle or independent prestressing force master muscle.
Described four jiaos of prestressing force master muscle, interior four jiaos of prestressing force master muscle, anistree prestressing force master muscle are twined on it with spiral form by stirrup respectively outward.
Described stake point comprises at least five piles point dowel, and wherein one be the sharp center of a stake dowel, is positioned at the center of stake point, all the other sharp dowels be positioned at stake sharp around; The most advanced and sophisticated outside of stake point is the sharp steel plate of stake, and sharp steel plate one end of stake is connected with the sharp center of stake dowel full weld, is welded with parallels or short muscle between the sharp steel plate other end of stake and the sharp dowel of stake; The sharp dowel of stake is outer to be wound with stirrup with spiral.
Described pile cover comprises at least four pile cap dowels, at least four arrangements of reinforcement, and by pile cover steel plate suit, the pile cover arrangement of reinforcement is compiled into grid type in its pile cover steel plate suit around the pile cover, and connection is tied up in the intersection, is square profile; The steel cap leaves vibrate hole and steam vent in concreting one side, and prestressing force master muscle passes the unidirectional baffle plate of steel cap and is reserved with the aperture everywhere.
Processing method one preferred version of whole solid side stake of piling bar of the present invention point fully prestressed concrete, its step of processing method of whole solid side of described piling bar point fully prestressed concrete be,
(1) materials are prepared: according to the size of required processing side stake, process not pile cover, the stake point of concreting, in decision is used in four jiaos of prestressing force master muscle or anistree prestressing force master muscle or the independent prestressing force master muscle one or more, in view of the above one whole reinforcing bar is processed into four jiaos of employed stirrups of prestressing force master muscle, a whole reinforcing bar is processed into interior four jiaos of prestressing force master muscle or the employed stirrup of anistree prestressing force master muscle, according to size, main muscle quantity, position, the required unidirectional baffle plate of making pile cover of side's stake.
(2) put and wear muscle: pile cover, stirrup are placed on the stretching bed successively, and prestressing force master muscle passes the required unidirectional baffle plate of pile cover, the stirrup other end to stretching bed from an end of stretching bed, and lock with ground tackle at the stretching bed two ends;
(3) main muscle stretch-draw: on stretching bed, prestressing force master muscle is carried out prestressed stretch-draw respectively stage by stage, after prestressed stretch-draw is finished, stirrup tied up in the junction with prestressing force master muscle be connected, according to the length of required pile body pile cover, stake point are inserted pile body then;
(4) side stake cast: check after the stretch-draw, whether the stake point is offset with pile body, pile cover axis, and matched moulds after adjustment carries out concrete pouring then, when concrete strength reach normal intensity 70% the time, decontrol and cut off unnecessary prestressing force master muscle;
(5) finishing moulding: in the pile cover internal cutting off, the sharp prestressing force master muscle of stake cuts off the back and smears with high-grade cement mortar with pile cover prestressing force master muscle.
On stretching bed prestressing force master muscle being carried out prestressed stretch-draw respectively stage by stage in the described main muscle stretch-draw is meant, at first interior four jiaos of prestressing force master muscle or the stretch-draw of anistree prestressing force master muscle are arrived 10% of proof stress, interior four jiaos of prestressing force master muscle or the employed stirrup of anistree prestressing force master muscle are pushed aside by desired spacing, then interior four jiaos of prestressing force master muscle or the stretch-draw of anistree prestressing force master muscle are arrived 105% of proof stress; Secondly 10% of proof stress is arrived in the stretch-draw of four jiaos of prestressing force master muscle, four jiaos of employed stirrups of prestressing force master muscle are pushed aside by desired spacing; If independent prestressing force master muscle is arranged, at the independent prestressing force master of stretch-draw muscle, stretch-draw is to 105% of proof stress.
The processing method of whole solid side stake of described piling bar point fully prestressed concrete is at same stretching bed, identical main muscle, can put simultaneously, whole solid side of at least one piling bar point of concreting fully prestressed concrete.
Whole solid side's stake of piling bar point fully prestressed concrete of the present invention and its beneficial effect of processing method thereof are:
1, whole solid side's stake of piling bar point fully prestressed concrete of the present invention and processing method thereof are with pile body, pile cover, the sharp integrated design of stake, pile body, pile cover, the sharp one cast of stake, disposal molding, and the stake point gos deep into pile body by stake point dowel, the stake point has steel plate, makes its function of use more remarkable.
2, whole solid side stake of piling bar of the present invention point fully prestressed concrete and processing method thereof, stirrup changes traditional segmentation, square stirrup form, and changes over stirrup of pile use, and stirrup is wrapped on the main muscle with the form of spiral.
3, whole solid side's stake of piling bar point fully prestressed concrete of the present invention and processing method thereof, side's stake of using this method to produce, side's pile length promptly can be greater than 30 meters, also can be less than 30 meters, piece together stake technology if the length of requirement side's stake greater than 30 meters, can also adopt as required, soon the stake point is removed, steel plate around unidirectional baffle plate of pile cover and the pile cover is welded, the a plurality of side's stakes that process like this can be welded, and the side's of making it pile length reaches desired length of design and intensity.
4, whole solid side's stake of piling bar point fully prestressed concrete of the present invention and processing method thereof, use side's stake production method of the present invention, can the side of realization the suitability for industrialized production of stake, stretching bed can use the ground of sufficient intensity, the spacing of stretching bed can be decided according to the size of factory building like this, can reach 100 meters long, in addition longer.Stretch-draw master muscle between same stretching bed, between can connect a plurality of sides stake.Use stake production method in gained side's of the present invention, can be easily with side's stake manufactureization, and save artificial.
The specific embodiment
Embodiment 1
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 700 * 700 (mm), and length is 25 meters, uses totally 16 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
As shown in Figure 1, whole solid side's stake of described piling bar point fully prestressed concrete comprises stake point 1, pile body 2, pile cover 3; Pile body 2 twines prestressing force master muscle by the stirrup spiral, and stirrup is tied up with main muscle intersection and is connected; Stake point 1 inserts pile body 2 by the sharp dowel 4 of stake, and the sharp dowel 4 of stake is tied up with the stirrup intersection and is connected; Pile cover 3 inserts pile body 2 by pile cover dowel 5, and pile cover dowel 5 is tied up with the stirrup intersection and is connected; Whole solid side's stake of piling bar point fully prestressed concrete formed by the concrete monobloc cast.
Prestressing force master muscle is that four jiaos of prestressing force master muscle 16 are used in combination with anistree prestressing force master muscle 17, and four jiaos of prestressing force master muscle 16 comprise four prestressing force master muscle, are distributed in four jiaos of pile body, constitute square; Anistree prestressing force master muscle comprises 12 prestressing force master muscle, is evenly distributed in square four limits that are made of four jiaos of prestressing force master muscle; Pile body cross section four jiaos of prestressing force masters muscle with constitute square with interior four jiaos of prestressing force master muscle or anistree prestressing force master muscle or independent prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.As shown in Figure 2.
Four jiaos of prestressing force master muscle, anistree prestressing force master muscle are twined on it with spiral form by stirrup respectively outward.
Stake point 1 comprises five piles point dowel 4, and wherein one be the sharp center of a stake dowel, is positioned at the center of stake point, all the other sharp dowels be positioned at stake sharp around; Participate in shown in the accompanying drawing 3 the sharp dowel of stake position.The most advanced and sophisticated outside of stake point is the sharp steel plate 8 of stake, and sharp steel plate one end of stake is connected with the sharp center of stake dowel full weld, is welded with parallels 9 between the steel plate other end and the sharp dowel of stake; Dowel is outer to be wound with stirrup with spiral.
Pile cover 3 comprises four pile cap dowels 5, and by pile cover steel plate 12 suits, pile cover arrangement of reinforcement 5 is compiled into grid type in its pile cover steel plate 12 suits around many arrangements of reinforcement 13, pile cover, and connection is tied up in the intersection, as shown in Figure 4.The steel cap leaves vibrate hole 14 and steam vent 9 in concreting one side, and prestressing force master muscle passes the unidirectional baffle plate of steel cap 11 places and is reserved with the aperture, as shown in Figure 5.
Embodiment 2
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 300 * 300 (mm), and length is 15 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 7.1mm, and stirrup diameter is 5mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in Figure 6, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 3
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 350 * 350 (mm), and length is 18 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 9mm, and stirrup diameter is 5mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in Figure 7, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 4
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 400 * 400 (mm), and length is 20 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 10.7mm, and stirrup diameter is 5mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in Figure 8, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 5
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 450 * 450 (mm), and length is 20 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 10.7mm, and stirrup diameter is 5mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in Figure 9, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 6
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 500 * 500 (mm), and length is 20 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 7mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in figure 10, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 7
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 550 * 550 (mm), and length is 22 meters, uses totally 8 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 7mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle are used in combination, as shown in figure 11, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, four jiaos of prestressing force master muscle in four main muscle of side's stake four limit central points constitute, be wound with stirrup outside four jiaos of prestressing force master muscle and interior four jiaos of prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 8
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 600 * 600 (mm), and length is 24 meters, uses totally 12 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 7mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and anistree prestressing force master muscle are used in combination, as shown in figure 12, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, eight main muscle on stake four limits, side constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 9
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 650 * 650 (mm), and length is 25 meters, use totally 12 in prestressing force master muscle, prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 7mm, and prestressing force master muscle is evenly arranged along side's stake.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and anistree prestressing force master muscle are used in combination, as shown in figure 13, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, eight main muscle on stake four limits, side constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 10
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 500 * 500 (mm), and length is 18 meters, uses totally 12 in prestressing force master muscle, and prestressing force master muscle diameter is 10.7mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and anistree prestressing force master muscle are used in combination, as shown in figure 14, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, eight main muscle on stake four limits, side constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 11
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 650 * 650 (mm), and length is 24 meters, uses totally 16 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and anistree prestressing force master muscle are used in combination, as shown in figure 15, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, 12 main muscle on stake four limits, side constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 12
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 750 * 750 (mm), and length is 15 meters, uses totally 16 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is that four jiaos of prestressing force master muscle and anistree prestressing force master muscle are used in combination, as shown in figure 16, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, 12 main muscle on stake four limits, side constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 13
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 900 * 900 (mm), and length is 19 meters, uses totally 20 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is used in combination separately, as shown in figure 17, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, stake four limits, side are evenly distributed with four prestressing force master muscle, two prestressing force master muscle in the middle of the every limit of stake, side, the totally eight main muscle in four limits constitute anistree prestressing force master muscle, remaining eight main muscle is independent prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 14
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 900 * 900 (mm), and length is 20 meters, uses totally 20 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is used in combination separately, as shown in figure 18, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, stake four limits, side are evenly distributed with four prestressing force master muscle, then ten six roots of sensation prestressing force master muscle constitute anistree prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 15
According to certain requirement of engineering design, whole solid side's stake of a kind of piling bar point of production fully prestressed concrete, the cross section is 1000 * 1000 (mm), and length is 25 meters, uses totally 24 in prestressing force master muscle, and prestressing force master muscle diameter is 12.6mm, and stirrup diameter is 8mm.
This side's stake is to use the different of main muscle quantity and adopts different main muscle structures to comparing the main distinction with embodiment.Therefore, present embodiment only is introduced for embodiment 1 different place at this.
Present embodiment prestressing force master muscle is four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is used in combination separately, as shown in figure 19, four jiaos of the side of being in stakes be four jiaos of prestressing force master muscle, stake four limits, side are evenly distributed with five prestressing force master muscle, two prestressing force master muscle in the middle of the every limit of stake, side, the totally ten two main muscle in four limits constitute anistree prestressing force master muscle, remaining eight main muscle is independent prestressing force master muscle, be wound with stirrup outside four jiaos of prestressing force master muscle and anistree prestressing force master muscle, prestressing force master muscle is evenly arranged along side's stake.
Embodiment 1-15 only is the distribution of having enumerated prestressing force master muscle in whole solid side's stake of part piling bar point fully prestressed concrete, formation to tabulate below, the quantity of whole solid side's stake prestressing force master muscle of piling bar point fully prestressed concrete not only is described, and partial properties is introduced.
Embodiment 16
The processing method of whole solid side's stake of embodiment 1-15 piling bar point fully prestressed concrete:
(1) materials are prepared: according to the size of required processing side stake, process not pile cover, the stake point of concreting, in decision is used in four jiaos of prestressing force master muscle or anistree prestressing force master muscle or the independent prestressing force master muscle one or more, in view of the above one whole reinforcing bar is processed into four jiaos of employed stirrups of prestressing force master muscle, a whole reinforcing bar is processed into interior four jiaos of prestressing force master muscle or the employed stirrup of anistree prestressing force master muscle, according to size, main muscle quantity, position, the required unidirectional baffle plate of making pile cover of side's stake.
(2) put and wear muscle: pile cover, stirrup are placed on the stretching bed successively, and prestressing force master muscle passes the required unidirectional baffle plate of pile cover, pile cover, the stirrup other end to stretching bed from an end of stretching bed, and lock with ground tackle at the stretching bed two ends;
(3) main muscle stretch-draw: on stretching bed, prestressing force master muscle is carried out prestressed stretch-draw respectively stage by stage, after prestressed stretch-draw is finished, stirrup tied up in the junction with prestressing force master muscle be connected, according to the length of required pile body pile cover, stake point are inserted pile body then;
(4) side stake cast: check after the stretch-draw, whether the stake point is offset with pile body, pile cover axis, and matched moulds after adjustment carries out concrete pouring then, when concrete strength reach normal intensity 70% the time, decontrol and cut off unnecessary prestressing force master muscle;
(5) finishing moulding: in the pile cover internal cutting off, the sharp prestressing force master muscle of stake cuts off the back and smears with high-grade cement mortar with pile cover prestressing force master muscle.When pile cover prestressing force master muscle cuts off, 5-10mm in side's stake that should be dark.
On stretching bed prestressing force master muscle being carried out prestressed stretch-draw respectively stage by stage in the main muscle stretch-draw is meant, at first interior four jiaos of prestressing force master muscle or the stretch-draw of anistree prestressing force master muscle are arrived 10% of proof stress, interior four jiaos of prestressing force master muscle or the employed stirrup of anistree prestressing force master muscle are pushed aside by desired spacing, then interior four jiaos of prestressing force master muscle or the stretch-draw of anistree prestressing force master muscle are arrived 105% of proof stress; Secondly 10% of proof stress is arrived in the stretch-draw of four jiaos of prestressing force master muscle, four jiaos of employed stirrups of prestressing force master muscle are pushed aside by desired spacing; If independent prestressing force master muscle is arranged, at the independent prestressing force master of stretch-draw muscle, stretch-draw is to 105% of proof stress.
Stretch-draw prestressing force is rebar standards intensity kpfk1420-1570N/mm
270%, described prestressing force master muscle stretch-draw prestressing force proof stress kpy1110N/mm
210% to 105% two-way two control stretch-draw.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.