CN106499124A - A kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures - Google Patents
A kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures Download PDFInfo
- Publication number
- CN106499124A CN106499124A CN201611158657.6A CN201611158657A CN106499124A CN 106499124 A CN106499124 A CN 106499124A CN 201611158657 A CN201611158657 A CN 201611158657A CN 106499124 A CN106499124 A CN 106499124A
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- China
- Prior art keywords
- muscle
- frp
- sma
- rustless steel
- concrete structures
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures, connect SMA muscle between two sections of FRP muscle, FRP muscle passes through rustless steel sleeve connection with SMA muscle, diameter processing cylinder hole slot of the rustless steel sleeve two ends according to FRP muscle and SMA muscle, middle reserved compartmented, arrangement soft metal bed course in the cylindrical hole slot of the rustless steel socket end of connection FRP muscle, longitudinally arranged zigzag guide rail in the cylindrical hole slot of the rustless steel socket end of connection SMA muscle, the cylindrical hole slot inwall of the rustless steel socket end of connection SMA muscle is provided with the zigzag guide rail groove matched with zigzag guide rail.SMA muscle plasticity hinge connector used in FRP tendon concrete structures of the invention, improve ductility and the energy dissipation capacity of structure, greatly increase the anti-seismic performance of FRP tendon concrete structures, the residual deformation of structure is reduced simultaneously so as to reducing maintenance and rehabilitation expense after shake, good anti-seismic performance can be kept under consecutive shock effect, it is ensured that life security and property safety.
Description
Technical field
The invention belongs to architectural and civil engineering FRP tendon concrete structures field, more particularly to a kind of for FRP muscle
The SMA muscle plasticity hinge connectors of xoncrete structure.
Background technology
Existing more than the 100 years history of use of the reinforced concrete structure in field of civil engineering, but pushing away over time
Move, reinforcing bar goes out performance degradation due to Corrosion behavior, while reinforced concrete structure produces larger remaining change after geological process
Shape, and under consecutive shock effect, anti-seismic performance is constantly degenerated, or even collapse, it is impossible to ensure the function after structure shake
Property, it is therefore desirable to very big maintenance and rehabilitation cost.In order to overcome etching problem, FRP muscle to replace reinforcing bar to be used for xoncrete structure
In, but FRP is a kind of fragile material, so the anti-seismic performance extreme difference of FRP tendon concrete structures.
Marmem（Shape Memory Alloy, abbreviation SMA）Large deformation can occur but be not result in destroy,
And deformation can be recovered after geological process terminates, minimum residual deformation is only existed.
FRP tendon concrete structure poor seismic behaviors, do not have a sign during destruction, greatly life-threatening safety cause huge
Economic loss, therefore cannot be used for the area of shockproof requirements.Existing building trade can both improve structure ductility and
Energy dissipation capacity, have good anti-seismic performance, the economic loss caused by earthquake can be reduced again as far as possible, while continuously
Shake can keep the method for good anti-seismic performance there is not yet having reported under acting on.
Content of the invention
The technical problem to be solved in the present invention is the drawbacks described above for how overcoming prior art, there is provided a kind of for FRP muscle
The SMA muscle plasticity hinge connectors of xoncrete structure.This is used for the SMA muscle plasticity hinge connector of FRP tendon concrete structures both can be with
Improve structure ductility and energy dissipation capacity, have good anti-seismic performance, the economy caused by earthquake can be reduced again as far as possible
Loss, while can keep good anti-seismic performance under consecutive shock effect.
For solving above-mentioned technical problem, a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures of the invention,
Connect SMA muscle between two sections of FRP muscle, FRP muscle and SMA muscle by rustless steel sleeve connection, the rustless steel sleeve two ends according to
According to the cylindrical hole slot of the diameter processing of FRP muscle and SMA muscle, middle reserved compartmented, connect the circle of the rustless steel socket end of FRP muscle
Arrangement soft metal bed course in cylindricality hole slot, longitudinally arranged sawtooth in the cylindrical hole slot of the rustless steel socket end for connecting SMA muscle
Shape guide rail, the cylindrical hole slot inwall for connecting the rustless steel socket end of SMA muscle are provided with the saw matched with the zigzag guide rail
Profile of tooth guide rail groove.
Be so designed that, by the adapter being arranged in FRP tendon concrete structures plastic hinge region, form FRP-SMA-FRP's
Combination muscle.SMA muscle is introduced in FRP tendon concrete structures, the anti-seismic performance of structure is not only increased, and is significantly reduced knot
The residual deformation of structure can keep good antidetonation so as to reduce the economic loss brought by earthquake under consecutive shock effect
Performance, it is ensured that life security and property safety.
Used as optimization, the rustless steel sleeve is equal diameter rustless steel sleeve, the compartmented of middle reserved rectangular cross-section.
It is so designed that, is applicable to the FRP muscle and SMA muscle of same diameter.
Used as optimization, the rustless steel sleeve is variable diameters rustless steel sleeve, middle reserved section is trapezoidal compartmented.
It is so designed that, is applicable to the FRP muscle and SMA muscle of different-diameter, improves ease of use.
Used as optimization, the zigzag guide rail is evenly arranged three along longitudinal direction, is respectively arranged in the circle of rustless steel socket end
In zigzag guide rail groove of the cylindricality hole slot inwall by 120 grades point processing.It is so designed that, is connected firmly, easy to use.
Used as optimization, the separation segment length is not less than 5mm.It is so designed that, is easy to process and easy to use.
Used as optimization, FRP muscle tensile capacity standard values should be 1.2 times of SMA muscle tensile capacity standard values, FRP muscle
Before tensile failure, should ensure that SMA muscle is surrendered first, the tensile capacity of FRP-SMA-FRP mixing muscle is determined by SMA muscle.Such as
This design, is connected firmly and effect is preferable.
Used as optimization, SMA muscle is fixed by sleeve extruding technique with FRP muscle.It is so designed that, is easily installed and connects jail
Gu.
The invention has the beneficial effects as follows：
The present invention, simple structure, design science, easy construction are economic and practical, by SMA used in FRP tendon concrete structures
Muscle plasticity hinge connector, improves ductility and the energy dissipation capacity of structure, greatly increases the shock resistance of FRP tendon concrete structures
Can, while the residual deformation of structure is reduced so as to reduce maintenance and rehabilitation expense after shake, reduce earthquake as far as possible
Caused economic loss, can keep good anti-seismic performance, it is ensured that life security and property under consecutive shock effect
Safety.There is preferable actual application value and promotional value.
Description of the drawings
Below in conjunction with the accompanying drawings a kind of this SMA muscle plasticity hinge connector for FRP tendon concrete structures is made furtherly
Bright：
Fig. 1 is a kind of this structural representation of the embodiment 1 of the SMA muscle plasticity hinge connectors for FRP tendon concrete structures；
Fig. 2 is the structural representation of 1-1 sections in Fig. 1；
Fig. 3 is the structural representation of 2-2 sections in Fig. 1；
Fig. 4 is a kind of this structural representation of the embodiment 2 of the SMA muscle plasticity hinge connectors for FRP tendon concrete structures；
Fig. 5 is the structural representation of 1-1 sections in Fig. 4；
Fig. 6 is the structural representation of 3-3 sections in Fig. 4.
Fig. 7 is the structural representation of zigzag guide rail groove and zigzag guide rail in Fig. 1, Fig. 2.
In figure：1 is FRP muscle, 2 is equal diameter rustless steel sleeve, 2.1 for the middle compartmented for reserving rectangular cross-section, 3 are
SMA muscle, 4 be soft metal bed course, 5 be zigzag guide rail, 6 be variable diameters rustless steel sleeve, 6.1 be trapezoidal for middle reserved section
Compartmented.
Specific embodiment
For making the objects, technical solutions and advantages of the present invention become more apparent, develop simultaneously embodiment referring to the drawings, right
The present invention is further described.
Embodiment 1：A kind of this SMA muscle plasticity hinge connector for FRP tendon concrete structures, between two sections of FRP muscle 1
Connection SMA muscle 3, FRP muscle 1 before FRP muscle tensile failures, should ensure that SMA muscle first with SMA muscle 3 by rustless steel sleeve connection
Surrender, FRP muscle tensile capacity standard values should be 1.2 times of SMA muscle tensile capacity standard values, FRP-SMA-FRP mixing muscle
Tensile capacity determined by SMA muscle；Diameter processing cylinder of the rustless steel sleeve two ends according to FRP muscle 1 and SMA muscle 3
Hole slot, middle reserved compartmented, arrangement soft metal bed course 4 in the cylindrical hole slot of the rustless steel socket end for connecting FRP muscle 1, even
Longitudinally arranged zigzag guide rail 5 in the cylindrical hole slot of the rustless steel socket end for connecing SMA muscle 3, connects the rustless steel of SMA muscle 3
The cylindrical hole slot inwall of socket end is provided with the zigzag guide rail groove matched with the zigzag guide rail 5；The rustless steel
Sleeve is equal diameter rustless steel sleeve 2, the compartmented 2.1 of middle reserved rectangular cross-section；The zigzag guide rail 5 is equal along longitudinal direction
Even arrangement three, the cylindrical hole slot inwall for being respectively arranged in rustless steel socket end are recessed by the zigzag guide rail of 120 grades point processing
In groove；The separation segment length is 5mm.
Embodiment 2：A kind of this SMA muscle plasticity hinge connector for FRP tendon concrete structures, between two sections of FRP muscle 1
Connection SMA muscle 3, FRP muscle 1 before FRP muscle tensile failures, should ensure that SMA muscle first with SMA muscle 3 by rustless steel sleeve connection
Surrender, FRP muscle tensile capacity standard values should be 1.2 times of SMA muscle tensile capacity standard values, FRP-SMA-FRP mixing muscle
Tensile capacity determined by SMA muscle；Diameter processing cylinder of the rustless steel sleeve two ends according to FRP muscle 1 and SMA muscle 3
Hole slot, middle reserved compartmented, arrangement soft metal bed course 4 in the cylindrical hole slot of the rustless steel socket end for connecting FRP muscle 1, even
Longitudinally arranged zigzag guide rail 5 in the cylindrical hole slot of the rustless steel socket end for connecing SMA muscle 3, connects the rustless steel of SMA muscle 3
The cylindrical hole slot inwall of socket end is provided with the zigzag guide rail groove matched with the zigzag guide rail 5；The rustless steel
Sleeve is variable diameters rustless steel sleeve 6, middle reserved section is trapezoidal compartmented 6.1；The zigzag guide rail 5 is equal along longitudinal direction
Even arrangement three, the cylindrical hole slot inwall for being respectively arranged in rustless steel socket end are recessed by the zigzag guide rail of 120 grades point processing
In groove；The separation segment length is 15mm.
Above-mentioned specific embodiment is only the concrete case of the present invention, is not the restriction for making other forms to the present invention,
Any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as equivalent variations
Equivalent embodiments.But every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to above enforcement
Any simple modification, equivalent variations and remodeling that example is made, should all fall into the scope of patent protection of the present invention.
Claims (5)
1. a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures, it is characterised in that：Connect between two sections of FRP muscle
SMA muscle is connect, FRP muscle is with SMA muscle by the straight of rustless steel sleeve connection, the rustless steel sleeve two ends foundation FRP muscle and SMA muscle
The cylindrical hole slot of footpath processing, middle reserved compartmented, the soft gold of arrangement in the cylindrical hole slot of the rustless steel socket end for connecting FRP muscle
Category bed course, longitudinally arranged zigzag guide rail in the cylindrical hole slot of the rustless steel socket end for connecting SMA muscle connect SMA muscle
The cylindrical hole slot inwall of rustless steel socket end is provided with the zigzag guide rail groove matched with the zigzag guide rail.
2. a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures as claimed in claim 1, it is characterised in that：
The rustless steel sleeve is equal diameter rustless steel sleeve, the compartmented of middle reserved rectangular cross-section.
3. a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures as claimed in claim 1, it is characterised in that：
The rustless steel sleeve is variable diameters rustless steel sleeve, middle reserved section is trapezoidal compartmented.
4. a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures as claimed in claim 1, it is characterised in that：
The zigzag guide rail is evenly arranged three along longitudinal direction, is respectively arranged in sawtooth of the cylindrical hole slot inwall by 120 grades point processing
In shape guide rail groove.
5. a kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures as claimed in claim 1, it is characterised in that：
The separation segment length is not less than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158657.6A CN106499124B (en) | 2016-12-15 | 2016-12-15 | A kind of SMA muscle plasticity hinge connectors for FRP tendons concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158657.6A CN106499124B (en) | 2016-12-15 | 2016-12-15 | A kind of SMA muscle plasticity hinge connectors for FRP tendons concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106499124A true CN106499124A (en) | 2017-03-15 |
| CN106499124B CN106499124B (en) | 2018-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611158657.6A Expired - Fee Related CN106499124B (en) | 2016-12-15 | 2016-12-15 | A kind of SMA muscle plasticity hinge connectors for FRP tendons concrete structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN106499124B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035203A (en) * | 2017-06-07 | 2017-08-11 | 沈阳建筑大学 | A kind of SMA energy consumers prestressing without bondn system |
| CN107871038A (en) * | 2017-10-31 | 2018-04-03 | 南京林业大学 | A kind of method of prediction FRP- steel compound constant concrete cylindrical compression full curve |
| CN109296215A (en) * | 2018-10-18 | 2019-02-01 | 苏州昆仑绿建木结构科技股份有限公司 | A kind of displacement of existing building pin connecting elements and its application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07133649A (en) * | 1993-11-10 | 1995-05-23 | Nippon Steel Corp | Joint for reinforcement |
| CN101962978A (en) * | 2010-10-20 | 2011-02-02 | 同济大学 | Shape memory alloy anchoring system |
| CN104100049A (en) * | 2014-07-18 | 2014-10-15 | 济南大学 | FRP rib plastic hinge connector for concrete structure |
| CN205443914U (en) * | 2016-01-06 | 2016-08-10 | 上海应用技术学院 | Adopt shape memory alloy reinforcing bar to have prefabricated pin -connected panel pier of runback potential energy power |
| CN206319491U (en) * | 2016-12-15 | 2017-07-11 | 济南大学 | A kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures |
-
2016
- 2016-12-15 CN CN201611158657.6A patent/CN106499124B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07133649A (en) * | 1993-11-10 | 1995-05-23 | Nippon Steel Corp | Joint for reinforcement |
| CN101962978A (en) * | 2010-10-20 | 2011-02-02 | 同济大学 | Shape memory alloy anchoring system |
| CN104100049A (en) * | 2014-07-18 | 2014-10-15 | 济南大学 | FRP rib plastic hinge connector for concrete structure |
| CN205443914U (en) * | 2016-01-06 | 2016-08-10 | 上海应用技术学院 | Adopt shape memory alloy reinforcing bar to have prefabricated pin -connected panel pier of runback potential energy power |
| CN206319491U (en) * | 2016-12-15 | 2017-07-11 | 济南大学 | A kind of SMA muscle plasticity hinge connectors for FRP tendon concrete structures |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035203A (en) * | 2017-06-07 | 2017-08-11 | 沈阳建筑大学 | A kind of SMA energy consumers prestressing without bondn system |
| CN107871038A (en) * | 2017-10-31 | 2018-04-03 | 南京林业大学 | A kind of method of prediction FRP- steel compound constant concrete cylindrical compression full curve |
| CN107871038B (en) * | 2017-10-31 | 2021-07-20 | 南京林业大学 | Method for predicting compressive full curve of FRP (fiber reinforced plastic) -steel composite confined concrete cylinder |
| CN109296215A (en) * | 2018-10-18 | 2019-02-01 | 苏州昆仑绿建木结构科技股份有限公司 | A kind of displacement of existing building pin connecting elements and its application method |
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| Publication number | Publication date |
|---|---|
| CN106499124B (en) | 2018-10-26 |
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Granted publication date: 20181026 Termination date: 20211215 |