CN210177699U - Assembled flexible connection device - Google Patents
Assembled flexible connection device Download PDFInfo
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- CN210177699U CN210177699U CN201920441135.XU CN201920441135U CN210177699U CN 210177699 U CN210177699 U CN 210177699U CN 201920441135 U CN201920441135 U CN 201920441135U CN 210177699 U CN210177699 U CN 210177699U
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- anchorage device
- cap
- anchor
- anchor section
- flexible connection
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Abstract
The utility model discloses an assembled flexible connection device, including low lax high-strength prestressed steel strand wires, sleeve, screw rod, go up anchor cap, pressure cap, voussoir, go up ground tackle restraint anchor section, lower anchorage device restraint anchor section, voussoir, pressure cap, compression spring and lower anchorage device cap. The utility model has strong anti-pulling capability in the axial direction, and can meet the internal force transmission of the stressed steel bar at the joint of the prefabricated part; still have certain lateral deformation ability, when the last ground tackle of concatenation and anchor utensil or overhanging flexible connecting device and grout hole have the error of unable regulation, the utility model discloses a lateral deformation of self can insert the grout hole completely, does not influence assembling of component.
Description
Technical Field
The utility model relates to a connecting device and construction method of assembled building element are deformable flexible connection muscle's construction field.
Background
The fabricated concrete building is a concrete structure or a building with a combined structure, which is designed and built by a field assembly method mainly by taking concrete prefabricated components produced in factories. The assembly method of the member generally comprises the steps of on-site post-pouring laminated concrete, steel bar anchoring post-pouring concrete connection and the like, and the steel bar connection can adopt the methods of grouting steel sleeve connection, welding, mechanical connection, reserved hole lap joint connection and the like.
At present, the connection between a floor slab and a reinforced concrete column or a shear wall of a conventional fabricated building adopts a method of pouring high-strength concrete or cement mortar, but the concrete or cement mortar cannot be poured due to the fact that a grouting hole of a grouting steel sleeve is blocked due to insufficient protection or misoperation in the construction process, once the number of empty joints reaches a certain number, the whole spliced joints can be separated under the action of earthquake or wind load, and serious results are caused. In the application of actual engineering, the fact that the large number of the overhanging reinforcing steel bars in the connection mode are often difficult to splice due to deformation in the transportation process or construction deviation of the embedded sleeve, and even the phenomenon that the reinforcing steel bars are cut violently exists.
In the above background, the present technical solution was developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible connection device of assembled structure to solve the technical problem who exists because the concatenation difficulty or the slip casting difficulty that the reinforcing bar warp and lead to among the prior art.
In order to achieve the above purpose, the solution of the present invention is:
an assembled flexible connection device, its characterized in that: the low-relaxation high-strength prestressed steel strand comprises an upper anchorage device, a low-relaxation high-strength prestressed steel strand, a lower anchorage device and a sleeve, wherein the upper anchorage device comprises a bolt, an upper anchorage device cap, a pressing cap, a wedge block and an upper anchorage device constraining anchor section, the lower anchorage device comprises a lower anchorage device constraining anchoring section, the wedge block, the pressing cap, a compression spring and a lower anchorage device cap, the bolt comprises a screw rod, a nut and a nut, the screw rod penetrates through the upper anchorage device cap, the nut is abutted against the pressing cap, the pressing cap is provided with a screw rod, the wedge block is provided with a screw hole, the screw hole is arranged corresponding to the pressing cap, the bottom of the upper anchorage device cap is of a hollow structure so as to form a space for accommodating the upper anchorage device constraining anchor section, a thread section is arranged in an inner cavity of the upper anchorage device cap, the upper anchorage device constraining anchor section is provided with a thread section buckled with the, the low-relaxation high-strength prestressed steel strand is uniformly distributed around the wedge block, and the wedge block is respectively nested in the upper anchorage device restraint anchor section and the lower anchorage device restraint anchor section.
As an optimal mode of the utility model, a set of the low-relaxation high-strength prestressed steel stranded wires are 3-4.
As a preferred mode of the present invention, the wedge block is a tapered wedge block.
As a preferred mode of the utility model, go up ground tackle restraint anchor section and be inside last ground tackle restraint anchor section that is the inverted horn shape, lower ground tackle restraint anchor section is inside lower anchor tackle restraint anchor section that is the horn shape down.
As an optimized mode of the present invention, the bolt is a high strength bolt.
As a preferred mode of the present invention, the sleeve is a metal sleeve or an FRP sleeve, a plastic sleeve, etc. having a certain strength.
As a preferred mode of the present invention, the sleeve is at least 2 segments.
By adopting the technical scheme, the utility model has strong anti-pulling capability in the axial direction, and can meet the requirement of internal force transmission of the stress rib at the joint of the prefabricated part; the low-relaxation high-strength prestressed steel strand has certain lateral deformation capacity, and cannot be influenced by collision in the hoisting or transportation process before the steel strand is not completely spliced; when the upper and lower component of concatenation or overhanging flexible connection device and grout hole have the error of unable regulation, the utility model discloses a side direction of self is out of shape and is inserted the grout hole completely, can not influence assembling of component.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the upper anchor of the present invention;
FIG. 3 is a perspective view of the lower anchor of the present invention;
fig. 4 is a schematic view of the connection structure between the present invention and the member.
The designations in the figures correspond to the following: the device comprises a bolt 1, a nut 11, a screw 12, a nut 13, an upper anchor cap 2, a pressing cap 3, a wedge block 4, an upper anchor restraint anchor 5, an inverted bell mouth 51, a lower anchor restraint anchor 6, a bell mouth 61, a lower anchor cap 7, a compression spring 8, a low-relaxation high-strength prestressed steel strand 9, a sleeve 10, connecting section steel 100, a stress rib 101, an upper component 102, a lower component 103 and a grouting hole 104.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model relates to an assembled flexible connection device, as shown in fig. 1-3, anchor and 1 group's sleeve 10 under anchor, 1 group low relaxation high strength prestressed steel strand wires 9, 1 on 1, it includes screw rod 1, goes up anchor cap 2, presses cap 3, voussoir 4 and goes up anchor restraint anchor section 5 to go up the anchor, down the anchor includes anchor restraint anchor section 6, voussoir 4, presses cap 3, compression spring 8 and lower anchor cap 7 down.
As shown in fig. 1-3, the bolt 1 comprises a nut 11, a screw 12 and a nut 13, the screw 12 passes through the upper anchor cap 2, the nut 11 abuts against the pressure cap 3, the pressure cap 3 is provided with a screw, the wedge 4 is provided with a screw hole, the screw hole of the wedge 4 is arranged corresponding to the screw of the pressure cap 3, the bottom of the upper anchor cap 2 is provided with a hollow structure to form a space for accommodating the upper anchor constraining anchor section 5, the inner cavity of the upper anchor cap 2 is provided with a screw thread section, the upper anchor constraining anchor section 5 is provided with a screw thread section buckled with the upper anchor cap 2, the top of the lower anchor cap 7 is provided with a hollow structure to form a space for accommodating the lower anchor constraining anchor section 6, the inner cavity of the lower anchor cap 7 is provided with a screw thread section, the lower anchor constraining anchor section 6 is provided with a screw thread section buckled with the lower anchor cap 7, the low-relaxation high-strength steel strand 9 passes between the pressure cap 3 and, one end of a compression spring 8 is abutted against the pressing cap 3 of the lower anchorage device, the other end of the compression spring is connected with the lower anchorage device cap 7, low-relaxation high-strength prestressed steel strands 9 are uniformly distributed around the wedge block 4, and the wedge block 4 is respectively nested in the upper anchorage device restraint anchor section 5 and the lower anchorage device restraint anchor section 6.
Preferably, 3-4 low-relaxation high-strength prestressed steel strands 9 are selected.
Preferably, the wedge 4 is a conical wedge.
Preferably, the upper anchor restraint anchor section 5 is an upper anchor restraint anchor section with an inverted-horn-shaped interior, and the lower anchor restraint anchor section 6 is a lower anchor restraint anchor section with a horn-shaped interior.
Preferably, the bolt 1 is a high-strength bolt.
Preferably, the sleeve 10 is a metal sleeve, an FRP sleeve having a certain strength, a plastic sleeve, or the like.
Preferably, the bottom of the lower anchor cap 7 is an inverted triangular lower anchor cap.
The utility model discloses a construction method of assembled flexible connection device, as shown in fig. 1-4, adopt an assembled flexible connection device of above-mentioned description, tighten up screw rod 12 through pre-buried nut 13 at connection shaped steel 100, weld atress muscle 101 and connection shaped steel 100 again, low relaxation high strength prestressed steel strand wires 9 anchor on the ground tackle, the ground tackle hugs closely the concrete form, trompil on the concrete form, wear out low relaxation high strength prestressed steel strand wires 9, protect low relaxation high strength prestressed steel strand wires 9 temporarily, then pour concrete, form the exposed upper member 102 that inserts end assembled of low relaxation high strength prestressed steel strand wires 9, sheathe sleeve 10 in the periphery of low relaxation high strength prestressed steel strand wires 9;
arranging an embedded grouting hole 104 at a corresponding position of the flexible connecting device, grouting non-shrinkage self-leveling high-strength grouting material into the pre-wetted grouting hole 104, aligning an upper member 102 (with the flexible connecting device facing downwards) embedded with the flexible connecting rib with the center of the grouting hole 104, slowly lowering the upper member 102, slowly inserting the flexible connecting device into the grout in the grouting hole 104 by using the self weight of the upper member 102, and squeezing the grout until the surplus grout is discharged.
Further, the number of the flexible connecting devices is the same as that of the stress bars 101, and the flexible connecting devices correspond to the stress bars 101 in position one to one.
Further, the number of the flexible connecting devices is different from the number of the stress bars 101, and the flexible connecting devices and the stress bars 101 are arranged in a staggered mode.
Further, the sleeve 10 is at least 2 segments.
When in work: firstly, cutting the low-relaxation high-strength prestressed steel strand 9 according to the required connection anchoring length (plus 2 times of end bending length). And then clamping the upper end head of the low-relaxation high-strength prestressed steel strand 9 between the pressing cap 3 of the upper anchorage and the wedge block 4 of the upper anchorage, and screwing the pressing cap 3 of the upper anchorage. And (3) penetrating the low-relaxation high-strength prestressed steel strands 9 from the middle of the upper anchorage device restraint anchor section 5, so that the wedge blocks 4 of the upper anchorage device are tightly matched with and extruded with the inverted-horn-shaped holes 51 of the upper anchorage device restraint anchor section 5, and the low-relaxation high-strength prestressed steel strands 9 are uniformly distributed around the wedge blocks 4 of the upper anchorage device. Preferably, the surfaces of the tapered wedge 4 and the inverted-flared hole 51 are both subjected to rough treatment, so that when the low-relaxation high-strength prestressed steel strand 9 is subjected to downward tension, the wedge 4 and the inverted-flared hole 51 of the upper anchorage device are extruded more and more tightly, and the low-relaxation high-strength prestressed steel strand 9 is anchored to give full play to the tensile strength. And (3) penetrating the high-strength bolt 1 from the middle of the upper anchor cap 2, then buckling the thread section of the upper anchor cap 2 with the thread section of the upper anchor restraint anchor section 5, and screwing the threads, so that the nut 13 compresses the pressing cap 3 of the upper anchor.
As shown in fig. 4, the present embodiment facilitates the connection between the building elements, so that the overall connection effect between the building elements is better. The member is not limited to a column, wall, platform or floor.
And (3) anchoring the installed upper anchorage device with the low-relaxation high-strength prestressed steel strand 9 with the stress rib 101 in the upper member 102 through connecting section steel 100 or welding according to the mode shown in the figure 4, and then pouring concrete. After the concrete is cured and transported to the assembly site, the sleeves 10 are mounted on the low-relaxation high-strength prestressed steel strands 9 of each group. And then, the lower end head of the low-relaxation high-strength prestressed steel strand 9 passes through the middle of the lower anchorage device constraint anchoring section 6, then the wedge block 4 of the lower anchorage device is installed in the bell mouth 61 of the lower anchorage device constraint anchoring section 6, the low-relaxation high-strength prestressed steel strand 9 is adjusted to be uniformly distributed around the wedge block 4 of the lower anchorage device, the lower end head of the low-relaxation high-strength prestressed steel strand 9 is bent to the end face of the wedge block 4 of the lower anchorage device, the pressing cap 3 of the lower anchorage device is installed, and the lower end head of the low-relaxation high-strength prestressed steel strand 9 of the lower anchorage device is pressed tightly. And (3) buckling and screwing the thread section of the lower anchor cap 7 and the thread section of the lower anchor restraining and anchoring section 6, so that the compression spring 8 supports the compression cap 3 of the lower anchor tightly. The exposed section of the flexible connecting device not only has high tensile bearing capacity, but also has certain lateral deformation capacity.
Firstly, the lower component 103 with the grouting hole 104 is installed in place, then the grouting hole 104 is wetted by a little water, the non-shrinkage high-strength grouting material is grouted into the grouting hole 104, and the liquid level of the grouting material keeps a certain distance from the top surface of the grouting hole 104 so as to prevent the grouting material from overflowing too much after the flexible connecting device is inserted. After the upper member 102 with the flexible connecting device is hoisted and positioned, the upper member 102 is slowly lowered, the flexible connecting device is squeezed into the non-shrinkage high-strength grouting material in the grouting hole 104 by using the self weight of the upper member 102 until the upper member 102 sinks to the position, and after the grouting material is temporarily fixed and reaches the designed strength, the upper member 102 and the lower member 103 are connected into a whole.
It should be noted that the number of the flexible connection devices and the stress bars 101 may be determined by calculating the stress of the structure according to the actual construction situation. Optionally, the number of the flexible connecting devices is the same as that of the stress bars 101, and the flexible connecting devices correspond to the stress bars 101 in position one to one; the number of the flexible connecting means and the force-bearing ribs 101 may also be different, for example, the flexible connecting means and the force-bearing ribs 101 are arranged in a staggered manner.
Adopt above-mentioned technical scheme, the utility model discloses have very high tensile ability of pulling out in axial direction, can satisfy the internal force transmission of the atress muscle 101 of prefabricated component 102 seam crossing. The utility model also has a certain lateral deformation capability, and before the steel strand 9 is not spliced completely, the low-relaxation high-strength prestressed steel strand can not be bent due to collision in the hoisting or transportation process; when the concatenation go up the ground tackle with down ground tackle or overhanging when there is unable error of adjusting flexible connection device and grout hole 104, the utility model discloses a lateral deformation of self inserts grout hole 104 completely, can not influence assembling of component 102. The utility model discloses a construction method is through not having during shrink high strength grouting material pours into grout hole 104 in advance, then receives the utility model discloses extrude unnecessary slurry. The grouting holes 104 can be guaranteed to be compact, and potential safety hazards such as non-compact grouting caused by blockage of grouting holes or grout outlet holes in the conventional pressure grouting mode can be avoided.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. An assembled flexible connection device, its characterized in that: the low-relaxation high-strength prestressed steel strand comprises an upper anchorage device, a low-relaxation high-strength prestressed steel strand, a lower anchorage device and a sleeve, wherein the upper anchorage device comprises a bolt, an upper anchorage device cap, a pressing cap, a wedge block and an upper anchorage device constraining anchor section, the lower anchorage device comprises a lower anchorage device constraining anchoring section, the wedge block, the pressing cap, a compression spring and a lower anchorage device cap, the bolt comprises a screw rod, a nut and a nut, the screw rod penetrates through the upper anchorage device cap, the nut is abutted against the pressing cap, the pressing cap is provided with a screw rod, the wedge block is provided with a screw hole, the screw hole is arranged corresponding to the pressing cap, the bottom of the upper anchorage device cap is of a hollow structure so as to form a space for accommodating the upper anchorage device constraining anchor section, a thread section is arranged in an inner cavity of the upper anchorage device cap, the upper anchorage device constraining anchor section is provided with a thread section buckled with the, the low-relaxation high-strength prestressed steel strand is uniformly distributed around the wedge block, and the wedge block is respectively nested in the upper anchorage device restraint anchor section and the lower anchorage device restraint anchor section.
2. An assembled flexible connection unit according to claim 1, characterized in that: and 3-4 low-relaxation high-strength prestressed steel strands.
3. An assembled flexible connection unit according to claim 1, characterized in that: the wedge is a conical wedge.
4. An assembled flexible connection unit according to claim 1, characterized in that: the upper anchorage device restraining anchor section is an upper anchorage device restraining anchor section with an inverted horn-shaped inner part, and the lower anchorage device restraining anchor section is a lower anchorage device restraining anchor section with a horn-shaped inner part.
5. An assembled flexible connection unit according to claim 1, characterized in that: the bolts are high-strength bolts.
6. An assembled flexible connection unit according to claim 1, characterized in that: the sleeve is a metal sleeve or an FRP sleeve or a plastic sleeve with certain strength.
7. An assembled flexible connection unit according to claim 6, characterized in that: the sleeve is at least 2 sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441135.XU CN210177699U (en) | 2019-04-02 | 2019-04-02 | Assembled flexible connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441135.XU CN210177699U (en) | 2019-04-02 | 2019-04-02 | Assembled flexible connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210177699U true CN210177699U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920441135.XU Expired - Fee Related CN210177699U (en) | 2019-04-02 | 2019-04-02 | Assembled flexible connection device |
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| Country | Link |
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| CN (1) | CN210177699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972744A (en) * | 2019-04-02 | 2019-07-05 | 华侨大学 | A kind of assembled flexible attachment device and construction method |
-
2019
- 2019-04-02 CN CN201920441135.XU patent/CN210177699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972744A (en) * | 2019-04-02 | 2019-07-05 | 华侨大学 | A kind of assembled flexible attachment device and construction method |
| CN109972744B (en) * | 2019-04-02 | 2023-12-15 | 华侨大学 | Assembled flexible connection device and construction method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |