CN110258928B - Installation method of nut column prestressed reinforcement device - Google Patents
Installation method of nut column prestressed reinforcement device Download PDFInfo
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- CN110258928B CN110258928B CN201910561788.6A CN201910561788A CN110258928B CN 110258928 B CN110258928 B CN 110258928B CN 201910561788 A CN201910561788 A CN 201910561788A CN 110258928 B CN110258928 B CN 110258928B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
Abstract
The utility model provides an installation method of nut post prestressing steel device, it includes the prestressing steel, bury the piece, first holder and second holder, through set up first holder and second holder rather than complex at the prestressing steel both ends, through set up between first holder and the second holder and bury the piece and cooperate with the prestressing steel, the outer tube of burying is pour with the body of pouring and is fixed, through first holder and the centre gripping of second holder and pour the body both sides, when pouring the body prestressing force and changing, first holder and second holder cooperate the flexible adjustment of centre gripping with the prestressing steel and pour the looseness of body. The invention overcomes the problems that the original prestressed reinforcement and the casting body are directly cast into a whole, are easy to corrode and oxidize and are inconvenient to replace, and has the characteristics of convenient adjustment, difficult corrosion and oxidation of the prestressed reinforcement, convenient replacement and simple and convenient operation.
Description
Technical Field
The invention belongs to the technical field of prestress bearing installation, and relates to an installation method of a nut column prestress reinforcing steel device.
Background
The prestress is common in the construction field, in a navigation building, a building main body is greatly influenced by the prestress, and the stability of equipment and the safety performance of the building are generally influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing an installation method of a nut column prestressed reinforcement device, which adopts a staged pouring embedded part to fix an outer sleeve, seals a gap between the inner sleeve and the outer sleeve at one end before pouring, blocks the other end, presets prestressed reinforcements after pouring, then installs a first clamping part and a second clamping part which are matched with the two ends of the prestressed reinforcements to clamp a pouring body, applies the contact force of a nut column to the pouring body by a dead round head foundation nut of the second clamping part, leads the prestressed reinforcements to generate tensile force, leads the prestressed reinforcements to be positioned in a sealed space and not easy to oxidize, is convenient to adjust the tensile force after pouring, and is simple and convenient to operate.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an installation method of nut post prestressing steel device, the device include with prestressing steel both ends complex first holder and second holder to and be located between first holder and the second holder with prestressing steel complex piece of burying, the device installation includes following step:
step one, positioning an embedded part; fixing an outer sleeve of the embedded part in a die cavity;
step two, filling; filling materials are injected between the inner sleeve and the outer sleeve at one end of the embedded part, and the other end of the embedded part is blocked;
step three, pouring and fixing the embedded part; pouring in two stages, namely pouring two ends of the outer sleeve in the first stage and pouring the middle part in the second stage;
step four, presetting prestressed reinforcements; penetrating the prestressed reinforcement through the inner sleeve, and respectively exposing the thread parts at two ends of the prestressed reinforcement;
fifthly, mounting a first clamping piece, enabling the fixed plate to be tightly attached to the casting body, enabling the hooking round-head foundation nut to be in contact with the fixed plate, fixedly connecting the protective cap with the fixed plate, and protecting the end head of the prestressed reinforcement and the hooking round-head foundation nut in the protective cap;
step six, tension force adjustment; rotating a dead round head anchor nut matched with one end of the prestressed reinforcement to be in contact with a notch of the nut column;
step seven, sleeving a notch sealing ring, a contact cap, a gasket and a locking nut in sequence at one end of the dead round-head foundation nut of the prestressed reinforcement, and rotating the locking nut to lock;
in the above steps, the first clamping piece and the second clamping piece which are set at two ends of the prestressed reinforcement are contacted with the pouring body to generate the tension force, and the tension force is adjusted by the rotation adjustment of the second clamping piece and the clamping force of the pouring body.
In the first step, the embedded part positioning is to bind the outer sleeve on the steel reinforcement framework in the pouring die cavity, and the template of the pouring die cavity on one side is in an open state.
In the second step, the inner sleeve is pushed into the outer sleeve from the open side of the pouring die cavity and is exposed from the other end; injecting filler from an annular gap between the inner sleeve and the outer sleeve of the tip; the other end of the outer sleeve is plugged by a rubber plug.
In the third step, the pouring template at the open side of the pouring mould cavity is closed, so that the pouring template is contacted with the outer sleeve; pouring two ends of the inner sleeve and the outer sleeve of the die cavity for the first time, and maintaining for 24 hours; and pouring the middle part in the die cavity for the second time, and maintaining for 24 hours.
In the fourth step, the pouring die cavity is dismantled; taking out the seal plug; the prestressed reinforcement penetrates through the inner sleeve, and the two ends of the prestressed reinforcement are respectively exposed out of the thread part.
In the fifth step, one end of the connecting pipe is inserted into the annular hole on the fixing plate and is fixedly connected with the annular hole, the other end of the connecting pipe is inserted outside the inner sleeve in the outer sleeve, and the fixing plate is contacted with the casting body; the rotary coupling round-head ground nut is contacted with the fixed plate; sleeving a protective cap, wherein the end of the prestressed reinforcement and the round-head anchor nut with the connecting hook are positioned in the protective cap, and the fastening piece penetrates through the protective cap to be connected and fixed with the fixing plate; and filling the filler from the glue injection port of the protective cap, wherein the filler enters the protective cap and then enters the hollow connecting pipe from the gap formed by matching the fixed plate and the prestressed steel bars, and the filler fills the annular gap between the prestressed steel bars and the connecting pipe and the annular gap between the inner sleeve and the connecting pipe.
In the sixth step, a contact pipe is sleeved at the end head of the inner sleeve pipe and is contacted with the casting body; the nut column is fixedly connected with the casting body, a notch on the nut column is matched with the conical bulge of the casting body to compact the contact pipe, and the threaded end of the prestressed reinforcement penetrates through the nut column to be exposed; a tooth-shaped sealing ring is sleeved, a dead round head foundation nut is matched with the thread at the end of the prestressed reinforcement, and the tooth-shaped sealing ring is pushed into a notch of the nut column for sealing after being rotated; after the dead round head anchor nut rotates to be in contact with the notch of the nut column, tension force is generated at two ends of the prestressed reinforcement; the larger the contact force between the dead-position round-head foundation nut and the nut column is, the correspondingly increased extrusion force between the nut column and the cast body and the larger the tension force is.
In the seventh step, a notch sealing ring is sleeved at the end of the prestressed reinforcement to be matched with the dead round-head foundation nut to be in contact with a notch on one side of the nut column; a contact cap is sleeved, a cap opening of the contact cap is matched with the dead round head anchor nut, and a cap edge is contacted with the notch sealing ring; the gasket and the locking nut are sleeved, the locking nut is rotated to push the contact cap to extrude the notch sealing ring, and the locking nut is locked.
A mounting method of a nut column prestressed reinforcement device adopts a step-by-step pouring embedded part to fix an outer sleeve, a gap between the inner sleeve and the outer sleeve at one end is closed before pouring, the other end is blocked, prestressed reinforcement is preset after pouring, a first clamping part and a second clamping part which are matched with the two ends of the prestressed reinforcement are mounted to clamp a pouring body, a dead round head foundation nut of the second clamping part applies contact force of a nut column to the pouring body, the prestressed reinforcement generates tension force, and the prestressed reinforcement is located in a sealed space. The invention overcomes the problems that the original steel bar and the casting body are cast into an integral structure, are easy to oxidize and are inconvenient to adjust the tension force, and has the characteristics of difficult oxidation, convenient adjustment of the tension force after casting and simple and convenient operation.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a state diagram of the present invention in use.
Fig. 2 is a schematic structural view of the prestressed reinforcement device of the present invention.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
Fig. 4 is an enlarged schematic view of fig. 2 at B.
Fig. 5 is a schematic structural view of the nut post of the present invention.
In the figure: the device comprises prestressed reinforcement 1, a hook-connected round-head anchor nut 11, a dead-position round-head anchor nut 12, a buried part 2, an outer sleeve 21, an inner sleeve 22, a connecting pipe 23, a first clamping part 3, a fixing plate 31, a protective cap 32, a rubber ring 33, a second clamping part 4, a contact pipe 41, a contact cap 42, a gasket 43, a locking nut 44, a tooth-shaped sealing ring 45 and a notch sealing ring 46.
Detailed Description
As shown in fig. 1 to 5, the method for installing the nut post prestressed reinforcement device includes a first clamping piece 3 and a second clamping piece 4 which are matched with two ends of a prestressed reinforcement 1, and an embedded piece 2 which is positioned between the first clamping piece 3 and the second clamping piece 4 and is matched with the prestressed reinforcement 1, and the method for installing the nut post prestressed reinforcement device includes the following steps:
step one, positioning an embedded part 2; fixing the outer sleeve 21 of the embedded part 2 in the die cavity;
step two, filling; filling materials are injected between the inner sleeve 22 and the outer sleeve 21 at one end of the embedded part 2, and the other end is blocked;
step three, pouring and fixing the embedded part 2; pouring in two stages, namely, pouring two ends of the outer sleeve 21 in the first stage and pouring the middle part in the second stage;
step four, presetting prestressed reinforcement 1; penetrating the prestressed reinforcement 1 through the inner sleeve 22, and respectively exposing the thread parts at two ends;
step five, mounting the first clamping piece 3, enabling the fixing plate 31 to be tightly attached to the casting body, enabling the hooking round-head anchor nut 11 to be in contact with the fixing plate 31, enabling the protective cap 32 to be fixedly connected with the fixing plate 31, and enabling the end head of the prestressed reinforcement 1 and the hooking round-head anchor nut 11 to be located in the protective cap 32 to be protected;
step six, tension force adjustment; rotating a dead round head anchor nut 12 matched with one end of the prestressed reinforcement 1 to be in contact with a notch of a nut column;
step seven, sequentially sleeving a notch sealing ring 46, a contact cap 42, a washer 43 and a locking nut 44 at one end of the dead round head foundation nut 12 of the prestressed reinforcement 1, and rotating the locking nut to lock;
in the above steps, the first clamping piece 3 and the second clamping piece 4 which are set at the two ends of the prestressed reinforcement 1 are contacted with the pouring body to generate the tensile force, and the tensile force is adjusted by adjusting the clamping force of the pouring body through the rotation of the second clamping piece 4.
In a preferred scheme, in the first step, the embedded part 2 is positioned by binding the outer sleeve 21 on the reinforcement cage in the casting cavity, and the formwork of the casting cavity on one side is in an open state.
Preferably, the outer sleeve 21 is bound to the reinforcement cage by a thin steel wire, and before the outer sleeve is firmly bound, the levelness is adjusted to be in a horizontal state.
Preferably, in the positioning process of the outer sleeve 21, the template on one side of the hooking round-head anchor nut 11 is in an open state, so that the outer sleeve 21 can be conveniently fixed and has enough space.
In a preferred embodiment, in the second step, the inner sleeve 22 is pushed into the outer sleeve 21 from the open side of the casting cavity and exposed from the other end; injecting filler from the annular gap between the inner 22 and outer 21 sleeves of the tip; the other end of the outer sleeve 21 is plugged by a rubber plug.
Preferably, the inner sleeve 22 which is close to one end of the hook-connected round-head anchor nut 11 is concave, so that the rubber plug is convenient to plug, and grout is prevented from entering during pouring.
Preferably, one end of the anchor nut 12 close to the dead round head extends out of the inner sleeve 22, and the inner sleeve 22 of the end is plugged by a rubber plug to avoid slurry entering during pouring.
Preferably, the filler is water-swelling waterproof glue, and during pouring and vibrating, the filler rapidly swells after meeting water, so that the space between the inner sleeve 22 and the outer sleeve 21 of the dead-position round-head anchor nut 12 is tightly sealed.
In a preferred scheme, in the third step, the pouring template at the open side of the pouring mold cavity is closed, so that the pouring template is in contact with the outer sleeve 21; pouring two ends of the inner sleeve 21 and the outer sleeve 21 of the die cavity for the first time, and maintaining for 24 hours; and pouring the middle part in the die cavity for the second time, and maintaining for 24 hours.
Preferably, the formwork at the open side of the casting cavity is closed and the inner side is in contact with the end face of the outer sleeve 21.
Preferably, during pouring, one end close to the hook-connected round-head anchor nut 11 is poured, concrete and the outer sleeve 21 of the end are poured into a whole, one end close to the dead-position round-head anchor nut 12 is poured, after the end is poured, the inner sleeve 22 exposed out of the outer sleeve 21 and the concrete are poured into a whole, and only the end part of the inner sleeve 22 is exposed to be matched with the contact cap 42.
Preferably, after one end of the anchor nut 12 close to the dead-position round head is poured and formed, the poured structure is in a convex conical shape, and the conical top with the smaller cross section faces outwards, so that the anchor nut is conveniently matched with the nut column.
In a preferred scheme, in the fourth step, the pouring mold cavity is dismantled; taking out the seal plug; the prestressed reinforcement 1 passes through the inner sleeve 22, and both ends of the prestressed reinforcement are respectively exposed out of the threaded portions.
Preferably, after the maintenance of the casting body, the template of the casting mold cavity is removed, the rubber stoppers at the ends of the outer sleeve 21 and the inner sleeve 22 are removed, and the inner sleeve 22 is in a completely through state.
Preferably, the hooking round head anchor nuts 11 and the dead round head anchor nuts 12 at the two ends of the prestressed reinforcement 1 are disassembled, the prestressed reinforcement 1 is inserted into and extends out of the other end of the inner sleeve 22 from one end, and the threaded parts are leaked out of the two ends.
In a preferred embodiment, in the fifth step, one end of the connecting tube 23 is inserted into the annular hole on the fixing plate 31 to be connected and fixed therewith, the other end of the connecting tube 23 is inserted outside the inner sleeve 22 in the outer sleeve 21, and the fixing plate 31 is in contact with the casting body; the rotary coupling round head anchor nut 11 is contacted with the fixed plate 31; a protective cap 32 is sleeved, the end of the prestressed reinforcement 1 and the hook round-head anchor nut 11 are positioned in the protective cap 32, and a fastening piece penetrates through the protective cap 32 and is fixedly connected with the fixing plate 31; and filling materials are injected from the filling opening of the protective cap 32, the filling materials enter the hollow connecting pipe 23 from the gap between the fixing plate 31 and the prestressed steel bar 1 after entering the protective cap 32, and the filling materials fill the annular gap between the prestressed steel bar 1 and the connecting pipe 23 and the annular gap between the inner sleeve 22 and the connecting pipe 23.
Preferably, before the first clamping piece 3 is installed, the annular plug is sleeved in the end of the prestressed reinforcement bar 1 and pushed into the inner sleeve 22, so that the inner sleeve 22 of the end is in a closed state.
Preferably, one end of the connecting pipe 23 is fixedly connected to one side of the fixing plate 31, and an annular ring is arranged in a cavity at the other end of the connecting pipe 23, so that during installation, the connecting pipe 23 gradually extends into the outer sleeve 21 from the end of the prestressed reinforcement 1, and the annular ring is matched and sealed with the inner wall of the inner sleeve 22.
Preferably, the fixing plate 31 is contacted with the cast body, the end of the prestressed reinforcement 1 is exposed to one side of the fixing plate 31, the hooking round-headed anchor nut 11 is engaged with the end, and the hooking round-headed anchor nut 11 is rotated to be gradually brought close to and contacted with the fixing plate 31.
Preferably, the fixing plate 31 is provided at the side thereof with a tapered hole contacting with a tapered portion of the hooking round-headed anchor nut 11, the tapered portion being provided with a pouring passage communicating with the connection pipe 23.
Preferably, after the protective cap 32 is connected to the fixing plate 31, the hooking round-head anchor nut 11 and the exposed threaded portion of the prestressed reinforcement 1 are located in the cavity of the protective cap 32.
Preferably, after the filler is injected into the cavity of the end of the protective cap 32, the filler enters the connecting tube 23 from the filling channel along the through hole of the fixing plate 31, and gradually overflows after being blocked by the annular ring and the annular plug, the space between the inner wall of the connecting tube 23 and the outer wall of the inner sleeve 22 and the space between the outer wall of the prestressed reinforcement 1 and the inner wall of the inner sleeve 22 are closed at the end, and then the filling opening of the protective cap 32 is closed by using the plug or the screw.
Preferably, the filler is water-swellable water-stop glue.
In a preferred scheme, in the sixth step, the contact pipe 41 is sleeved at the end of the inner sleeve 22 to be in contact with the casting body; the nut column is fixedly connected with the casting body, a notch on the nut column is matched with the conical bulge of the casting body to compact the contact tube 41, and the threaded end of the prestressed reinforcement 1 penetrates through the nut column to be exposed; a tooth-shaped sealing ring 45 is sleeved, the dead round-head foundation nut 12 is matched with the thread at the end of the prestressed reinforcement 1, and the tooth-shaped sealing ring 45 is pushed to enter a notch of the nut column for sealing after the rotation; after the dead round head anchor nut 12 rotates to be in contact with the notch of the nut column, tension force is generated at two ends of the prestressed reinforcement 1; the larger the contact force between the dead-position round-head foundation nut 12 and the nut column is, the correspondingly increased extrusion force between the nut column and the cast body is, and the larger the tensile force is.
Preferably, the contact tube 41 is a cylindrical body with a groove, penetrates through one end of the dead round head anchor nut 12 to be sleeved on the end of the inner sleeve 22, the end surface of the opening is contacted with the casting body with a conical structure to play a role of sealing the inner sleeve 22 at the end,
preferably, the outer wall of the tooth-shaped sealing ring 45 is of a sawtooth structure, is sleeved from one end of the blind spot round head ground nut 12, enters the notch of the nut column and then is matched with the nut column, and a plurality of sawteeth are matched with the notch to form multiple sealing, so that the sealing effect is good.
Preferably, the dead-position round-head anchor nut 12 is matched with the thread of the prestressed reinforcement 1, the tooth-shaped sealing ring 45 is gradually pushed to a horizontal notch of the nut column to be sealed by rotating the dead-position round-head anchor nut 12, and the dead-position round-head anchor nut 12 is contacted with the inclined notch of the nut column.
In a preferred scheme, in the seventh step, a notch sealing ring 46 is sleeved on the end head of the prestressed reinforcement 1 to be matched with the dead-position round-head foundation nut 12 to be in contact with a notch on one side of the nut column; a contact cap 42 is sleeved, the cap opening of the contact cap 42 is matched with the dead round head anchor nut 12, and the cap edge is contacted with a notch sealing ring 46; the washer 43 and the lock nut 44 are sleeved, the lock nut 44 is rotated to push the contact cap 42 to press the notch sealing ring 46, and the lock nut is locked.
Preferably, the dead-position round-head anchor nut 12 is rotated, the pushing nut column is close to the cast body, the clamping force at two ends of the prestressed reinforcement 1 is gradually increased, and the tensile force of the prestressed reinforcement 1 is increased.
Preferably, in the actual use process, one end of the hooking round-head anchor nut 11 positioned at one side of the pouring body is finally poured with concrete poured at the later stage to form an integral structure.
Preferably, when the tension force is adjusted, the dead round head anchor nut 12 is rotated to adjust the extrusion force of the nut column and the cast body, and then the tension force of the prestressed reinforcement 1 can be adjusted.
Preferably, the notch sealing ring 46, the contact cap 42, the washer 43 and the locking nut 44 are sleeved in sequence from the end of the prestressed reinforcement bar 1, and the locking nut 44 is rotated to push the washer 43 to push the contact cap 42 so that the notch sealing ring 46 is tightly attached to the nut column, so that the sealing performance is good.
Preferably, the terminal surface of dead position button head ground nut 12 sets up the dentate structure of slope, and with the recess cooperation of contact cap 42 inner wall slope, when lock nut 44 locking back, dead position button head ground nut 12 can not rotate, avoids deviating from the screw thread section of prestressing steel bar 1, influences the tension force.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (4)
1. The utility model provides an installation method of nut post prestressing steel device, the device include with prestressing steel (1) both ends complex first holder (3) and second holder (4) to and be located between first holder (3) and second holder (4) with prestressing steel (1) complex bury piece (2), characterized by, the device installation includes the following step:
step one, positioning an embedded part (2); fixing an outer sleeve (21) of the embedded part (2) in a die cavity;
step two, filling; filling materials are injected between the inner sleeve (22) and the outer sleeve (21) at one end of the embedded part (2), and the other end is blocked; pushing the inner sleeve (22) into the outer sleeve (21) from the open side of the pouring die cavity, and exposing the inner sleeve from the other end; injecting filler from the annular gap between the inner (22) and outer (21) sleeves of the tip; the other end of the outer sleeve (21) is plugged by a rubber plug;
step three, pouring and fixing the embedded part (2); pouring in two stages, wherein two ends of the outer sleeve (21) are poured in the first stage, and the middle part is poured in the second stage;
step four, presetting prestressed reinforcement (1); penetrating the prestressed reinforcement (1) through the inner sleeve (22), and respectively exposing the thread parts at two ends of the prestressed reinforcement; removing the pouring die cavity; taking out the seal plug; the prestressed reinforcement (1) penetrates through the inner sleeve (22), and the two ends of the prestressed reinforcement are respectively exposed out of the thread part;
fifthly, mounting a first clamping piece (3), enabling a fixing plate (31) to be tightly attached to a casting body, enabling a hooked round-head anchor nut (11) to be in contact with the fixing plate (31), enabling a protective cap (32) to be fixedly connected with the fixing plate (31), and enabling the end of the prestressed steel bar (1) and the hooked round-head anchor nut (11) to be located in the protective cap (32) to be protected; one end of a connecting pipe (23) is inserted into an annular hole on a fixing plate (31) and is fixedly connected with the annular hole, the other end of the connecting pipe (23) is inserted outside an inner sleeve (22) in an outer sleeve (21), and the fixing plate (31) is contacted with a pouring body; the rotary coupling round head anchor nut (11) is contacted with the fixed plate (31); a protective cap (32) is sleeved, the end of the prestressed reinforcement (1) and the hook-connected round-head anchor nut (11) are positioned in the protective cap (32), and a fastening piece penetrates through the protective cap (32) to be connected and fixed with the fixing plate (31); filling materials are injected from a glue injection port of the protective cap (32), the filling materials enter the hollow connecting pipe (23) from a gap formed by matching the fixing plate (31) and the prestressed reinforcement (1) after entering the protective cap (32), and the filling materials fill an annular gap between the prestressed reinforcement (1) and the connecting pipe (23) and an annular gap between the inner sleeve (22) and the connecting pipe (23);
step six, tension force adjustment; rotating a dead round head anchor nut (12) matched with one end of the prestressed reinforcement (1) to be in contact with a notch of a nut column; a contact pipe (41) is sleeved at the end head of the inner sleeve (22) and is contacted with the casting body; the nut column is fixedly connected with the casting body, a notch on the nut column is matched with the conical bulge of the casting body to compact the contact pipe (41), and the threaded end of the prestressed reinforcement (1) penetrates through the nut column to be exposed; a tooth-shaped sealing ring (45) is sleeved, a dead round head foundation nut (12) is matched with the thread at the end of the prestressed reinforcement (1), and the tooth-shaped sealing ring (45) is pushed to enter a notch of the nut column for sealing after being rotated; after the dead round head anchor nut (12) rotates to be in contact with the notch of the nut column, tension is generated at the two ends of the prestressed reinforcement (1); the larger the contact force between the dead-position round-head foundation nut (12) and the nut column is, the larger the extrusion force between the nut column and the pouring body is, and the larger the tension force is;
seventhly, sleeving a notch sealing ring (46), a contact cap (42), a gasket (43) and a locking nut (44) in sequence at one end of a dead round head foundation nut (12) of the prestressed reinforcement (1), and rotating the locking nut to lock;
in the steps, the first clamping piece (3) and the second clamping piece (4) which are set at the two ends of the prestressed reinforcement (1) are in contact with the pouring body to generate tensile force, and the tensile force is adjusted by adjusting the clamping force of the pouring body through rotation of the second clamping piece (4).
2. The method of installing a nut post prestressed reinforcement means recited in claim 1, and further characterized by: in the first step, the embedded part (2) is positioned by binding the outer sleeve (21) on the reinforcement cage in the pouring die cavity, and the template of the pouring die cavity on one side is in an open state.
3. The method of installing a nut post prestressed reinforcement means recited in claim 1, and further characterized by: in the third step, the pouring template at the open side of the pouring die cavity is closed, so that the pouring template is contacted with the outer sleeve (21); pouring two ends of an inner sleeve and an outer sleeve (21) of the die cavity for the first time, and maintaining for 24 hours; and pouring the middle part in the die cavity for the second time, and maintaining for 24 hours.
4. The method of installing a nut post prestressed reinforcement means recited in claim 1, and further characterized by: in the seventh step, a notch sealing ring (46) is sleeved on the end head of the prestressed reinforcement (1) and matched with the dead round-head foundation nut (12) to be in contact with a notch on one side of the nut column; a contact cap (42) is sleeved, the cap opening of the contact cap (42) is matched with the dead round head anchor nut (12), and the cap edge is contacted with the notch sealing ring (46); a washer (43) and a lock nut (44) are sleeved, the lock nut (44) is rotated to push the contact cap (42) to extrude the notch sealing ring (46), and the lock nut is locked.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910561788.6A CN110258928B (en) | 2019-06-26 | 2019-06-26 | Installation method of nut column prestressed reinforcement device |
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| CN201910561788.6A CN110258928B (en) | 2019-06-26 | 2019-06-26 | Installation method of nut column prestressed reinforcement device |
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| CN110258928B true CN110258928B (en) | 2021-10-15 |
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| CN108412081A (en) * | 2018-01-30 | 2018-08-17 | 天津城建大学 | It is applied with the building construction method of horizontal prestressed masonry structure and masonry |
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| CN109372007B (en) * | 2018-11-28 | 2023-11-07 | 长江三峡集团福建能源投资有限公司 | Sealing anchor bolt for installing anchor bolt cage of offshore wind turbine and construction method of sealing anchor bolt |
| CN109706927A (en) * | 2019-01-21 | 2019-05-03 | 吉林建筑大学 | A kind of preparation method of Prestressed Rock soil anchor bolt and its free segment |
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2019
- 2019-06-26 CN CN201910561788.6A patent/CN110258928B/en active Active
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