CN100419185C - Biezoelectrical intelligent anchorage equipment - Google Patents
Biezoelectrical intelligent anchorage equipment Download PDFInfo
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- CN100419185C CN100419185C CNB2005100281913A CN200510028191A CN100419185C CN 100419185 C CN100419185 C CN 100419185C CN B2005100281913 A CNB2005100281913 A CN B2005100281913A CN 200510028191 A CN200510028191 A CN 200510028191A CN 100419185 C CN100419185 C CN 100419185C
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- piezoelectric actuator
- anchor
- anchor cup
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- end plate
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Abstract
The present invention discloses a piezoelectric intelligent anchor device for the field of civil engineering, which comprises a fixed end anchor board, an anchor ring, an anchor cup, an anchor cup end plate and a piezoelectric actuator, wherein the anchor cup is provided with a pore canal, the piezoelectric actuator is arranged in the pore canal, the rear end of the piezoelectric actuator rests tightly at the bottom of the pore canal, the front end of the piezoelectric actuator rests tightly at the back side of the anchor cup end plate, and the piezoelectric actuator is connected with a driving power supply by a conductor wire. According to different functional requirements, the applied control voltage is adjusted to make the piezoelectric actuator generate driving power for achieving the goal of active control over a structure element. The anchor device of the present invention has high performance of intelligent driving and the active control over the prestressing tendon stress. The intelligent anchor device has the characteristics that the stress value of the prestressing tendon is adjusted in the using process, and the active control over the stress and the deformation of the structure element is achieved ultimately. The present invention has the advantages of simple and reasonable structure, strong operability, low cost and good practicality.
Description
Technical field
The present invention relates to a kind of ground tackle device of field of civil engineering, be specifically related to a kind of Biezoelectrical intelligent anchorage equipment, this device can externally do work under the situation of input external voltage, realizes the purpose to the presstressed reinforcing steel Stress Control.
Background technology
Building structure forwards such as current rail, highway, bridge are striden greatly, continuous, light-duty direction develops.Prestressed reinforced concrete construction is owing to have higher economy, technical indicator and extensive applicability, thereby obtained using widely in Longspan Bridge, dam, industrial premises, underground construction, nuclear reactor housing and other extraordinary structure.As the core parts in the prestress engineering---prestressed anchor,, be the key that can prestressing force exist, thereby its quality and performance have been proposed very high requirement owing to want long-term bearing load.Present stage, the technical level of common ground tackle is comparative maturity, and the market supply situation is also comparatively good.But common ground tackle only has the ability of passive anchoring, at present, and in bridge and large-span prestressed structure, in case after tension of prestressed tendon was finished, ground tackle can only be kept the prestress value of presstressed reinforcing steel and can't carry out active adjustment to it usually.
Since the nineties, in the research field of piezoelectric intelligent device and member thereof, obtained certain progress both at home and abroad, and be successfully applied to engineering fields such as Aero-Space and machinery, and also do not had in conjunction with the experimental study and the engineering application of ground tackle.In all kinds of buildings that functional performance is had higher requirements, Piexoelectric actuator and structure thereof all will be brought into play its important effect from now on.In the long run, the piezoelectric intelligent device not only is fit to the needs of space industry, and it all will occupy an important position in field of civil engineering from now on.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of ground tackle device of intelligent drives, to realize the ACTIVE CONTROL to the presstressed reinforcing steel stress value.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of Biezoelectrical intelligent anchorage equipment, the one end is the fixed end anchor slab, the other end comprises anchor ring, anchor cup and anchor cup end plate, and described anchor ring also comprises a piezoelectric actuator by being threaded in the outer rim of anchor cup, be provided with the duct in the described anchor cup, this piezoelectric actuator is installed in the duct, and its rear end withstands on the bottom in duct, and its front end withstands on the back side of anchor cup end plate.
Wherein piezoelectric actuator is connected with driving power by lead.
According to different functional requirements, regulate and add control voltage, make piezoelectric actuator produce driving force, thereby realize purpose the member ACTIVE CONTROL.Ground tackle device of the present invention has the superior function of intelligent drives and ACTIVE CONTROL presstressed reinforcing steel stress.This intelligent anchorage apparatus features is to adjust presstressed reinforcing steel stress value in use, finally realizes the stress of structural element and the ACTIVE CONTROL of distortion.The present invention is simple and reasonable, and is workable, and cost is lower, and Practical Performance is good.
As to improvement of the technical scheme, the back side of described anchor cup end plate is provided with screw rod, and the front end of piezoelectric actuator is provided with internal thread and is connected with screw rod.Piezoelectric actuator is fixed on the anchor cup end plate by screw thread, is convenient to the installation and the location of piezoelectric actuator.
Improve as the another kind to technique scheme, the outside of described piezoelectric actuator also is provided with sleeve, and sleeve is fixed in the duct of anchor cup.Sleeve can play the effect of protection piezoelectric actuator.
Preferably, the back side and the outward flange of described anchor cup end plate are provided with groove, and the lead of piezoelectric actuator is drawn from this groove.Utilize prefabricated groove that lead is drawn from the outward flange of anchor cup end plate, can avoid damage wires in the anchoring construction process.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the sectional view of Biezoelectrical intelligent anchorage equipment of the present invention.
The schematic diagram of a kind of piezoelectric actuator of using among the present invention of being shown in Figure 2.
Fig. 3 is the annexation schematic diagram of piezoelectric actuator and anchor cup end plate, sleeve.
Fig. 4 is a kind of system block diagram of using ground tackle device of the present invention.
The specific embodiment
As shown in the figure, Biezoelectrical intelligent anchorage equipment of the present invention, comprise fixed end anchor slab 4, anchor ring 3, anchor cup 2, anchor cup end plate 9 and piezoelectric actuator 5, be provided with duct 10 in the anchor cup 2, piezoelectric actuator 5 is installed in the duct 10, the rear end of piezoelectric actuator 5 withstands on the bottom in duct 10, and the front end of piezoelectric actuator 5 withstands on the back side of anchor cup end plate 9, and the lead of piezoelectric actuator 5 is connected with driving power.In the present embodiment, the outside of piezoelectric actuator 5 also is provided with a sleeve that shields 6, and sleeve 6 is fixed in the duct 10 by screw 7, and the front end of piezoelectric actuator 5 is connected by the screw rod 8 of internal thread with anchor cup end plate 9 back sides.The back side and the outward flange of anchor cup end plate 9 are provided with groove, and the lead of piezoelectric actuator 5 is drawn with driving power from this groove and is connected.
In the present embodiment, intelligent anchorage is to improve on the basis of all kinds of common prestressed anchors, its composition material all can be buied in market, comprise: driving power (model: HPV-1C0300A0300), PST150/20/18 VS25) and all kinds of prestressed anchors at present commonly used the box-like driver of piezo stack (model:.
In the present embodiment, the driving power input voltage can be controlled control mode to the output displacement and the power output of driver: manual adjustments, analog input, computer SPP parallel port (but cascade control).Peak point current: 300mA; Output voltage passage: 1 tunnel (but also multichannel).Every road output voltage range: 0V～+ 300V.Voltage stability: 1 ‰/8hours.Output voltage resolution ratio: 30PPm.Voltage measurement resolution ratio: 1%.Quiescent voltage ripple: 30PPm (2 μ F load).Sine-wave response: 2KHZ (load=2 μ F, Vpp=10V).Cascade is controlled the size :≤255.Analog input scope: 0V～+ 10V.
Piezoelectric ceramic actuator in the present embodiment is formed by stacking by piezoelectric ceramic piece, and is outside by the stainless steel encapsulation, is shaped as cylindrically, and schematic diagram is seen Fig. 2.The ceramic electrical capacity: 11 μ F, bear voltage change scope :-30V～+ 150V.Main body is the cylinder of diameter 25mm, height 36mm; The termination is the contact surface of externally exporting, and highly is about 4mm, termination race diameter 10mm, and inner ring diameter 6mm, the internal thread degree of depth is 3mm.
To the using method of Biezoelectrical intelligent anchorage equipment of the present invention be described below.
Set-up procedure: after presstressed reinforcing steel 1 being passed the honeycomb hole of anchor cup 2, with the termination locking of draw-gear with presstressed reinforcing steel 1, the end with presstressed reinforcing steel 1 directly is anchored on the anchor cup end plate 9 in left side subsequently.
Installation process: the screw rod in the middle of the anchor cup end plate 98 is screwed in the screwed hole of piezoelectric actuator 5 front ends, and after fixing, the screw 7 by the rear end is connected sleeve with anchor cup 2 again, eliminates gap and fastening.The lead of piezoelectric actuator 5 is drawn with driving power through the prefabricated groove on the anchor cup end plate 9 and is linked to each other.
Stretch-draw and stress adjustment process: treat that the overhanging pull bar of jack can carry out the stretch-draw of presstressed reinforcing steel after screwing in anchor cup 2, after stretch-draw is finished, enters the intelligent Stress Control stage.At first, the power supply energising applies voltage to piezoelectric actuator 5, and piezoelectric actuator 5 is externally done work; Driver is external power output both, also can externally promote displacement, realizes the stress adjustment to presstressed reinforcing steel 1.When driver drives presstressed reinforcing steel 1 is elongated to when setting value, the screw thread of anchor ring 3 along anchor cup 2 outside screwed withstand on component surface, so anchor ring 3 passes to prestressing force on the concrete component by the support backing plate.
Mend the process of opening: power supply applies voltage to piezoelectric actuator 5, and piezoelectric actuator 5 is externally done work, and piezoelectric actuator 5 external power outputs realize the benefit of presstressed reinforcing steel 1 is opened.By two controls,, control prestressing force can be applied on the member when stress value that intelligent anchorage is mended tension prestress muscle 1 reaches after setting value asks to the strain of presstressed reinforcing steel 1 and stretch value.
Its operating principle is: the present invention can carry out stress adjustment and control to the presstressed reinforcing steel that is in operational phase by changing voltage swing.The control power supply is to piezoelectric actuator 5 input voltages of intelligent anchorage, and under the effect of extra electric field, driver externally does work, and drives anchor cup end plate 9 and stretches out, and reaches the purpose of stretching presstressed reinforcing steel.By the size of adjustment applied voltage, but the stress value of ACTIVE CONTROL presstressed reinforcing steel and stretch value.
Claims (5)
1. Biezoelectrical intelligent anchorage equipment, the one end is fixed end anchor slab (4), the other end comprises anchor ring (3), anchor cup (2) and anchor cup end plate (9), described anchor ring (3) is by being threaded in the outer rim of anchor cup (2), it is characterized in that: also comprise a piezoelectric actuator (5), be provided with duct (10) in the described anchor cup, this piezoelectric actuator (5) is installed in the duct (10), its rear end withstands on the bottom of duct (10), and its front end withstands on the back side of anchor cup end plate (9).
2. Biezoelectrical intelligent anchorage equipment according to claim 1 is characterized in that: described piezoelectric actuator (5) is connected with driving power by lead.
3. Biezoelectrical intelligent anchorage equipment according to claim 1 is characterized in that: the back side of described anchor cup end plate (9) is provided with screw rod (8), and the front end of piezoelectric actuator (5) is provided with internal thread and is connected with screw rod (8).
4. Biezoelectrical intelligent anchorage equipment according to claim 1 is characterized in that: the outside of described piezoelectric actuator (5) also is provided with sleeve (6), and sleeve (6) is fixed in the duct (10) of anchor cup.
5. Biezoelectrical intelligent anchorage equipment according to claim 1 is characterized in that: the back side and the outward flange of described anchor cup end plate (9) are provided with groove, and the lead of piezoelectric actuator (5) is drawn from this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100281913A CN100419185C (en) | 2005-07-27 | 2005-07-27 | Biezoelectrical intelligent anchorage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100281913A CN100419185C (en) | 2005-07-27 | 2005-07-27 | Biezoelectrical intelligent anchorage equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727605A CN1727605A (en) | 2006-02-01 |
| CN100419185C true CN100419185C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100281913A Expired - Fee Related CN100419185C (en) | 2005-07-27 | 2005-07-27 | Biezoelectrical intelligent anchorage equipment |
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| CN (1) | CN100419185C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023110260A1 (en) * | 2021-12-15 | 2023-06-22 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Körperschaft Des Öffentlichen Rechts | Reinforcement and method for operating same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388378B (en) * | 2013-07-31 | 2016-03-02 | 上海交通大学 | Based on the intelligent reinforcing bar and preparation method thereof of piezoceramics crystal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118107U (en) * | 1992-05-22 | 1992-10-07 | 北京市政工程研究院 | Stress controller |
| EP0896108A2 (en) * | 1997-08-05 | 1999-02-10 | Dyckerhoff & Widmann Aktiengesellschaft | Method for installing and tensioning a free tendon, and device for carrying out the method |
| WO1999015739A2 (en) * | 1997-09-24 | 1999-04-01 | Schuyler, Peter, W. | Hold down device and method |
| CN2313961Y (en) * | 1997-09-29 | 1999-04-14 | 高龙俊 | Pressed prestressed steel cable anchor |
| JP2001317160A (en) * | 2000-05-09 | 2001-11-16 | Anderson Technology Kk | Auxiliary for connecting pc steel strand wire |
| CN1450234A (en) * | 2003-04-17 | 2003-10-22 | 同济大学 | Layered cement base piezoelectric intelligent composite material and preparation method thereof |
-
2005
- 2005-07-27 CN CNB2005100281913A patent/CN100419185C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118107U (en) * | 1992-05-22 | 1992-10-07 | 北京市政工程研究院 | Stress controller |
| EP0896108A2 (en) * | 1997-08-05 | 1999-02-10 | Dyckerhoff & Widmann Aktiengesellschaft | Method for installing and tensioning a free tendon, and device for carrying out the method |
| WO1999015739A2 (en) * | 1997-09-24 | 1999-04-01 | Schuyler, Peter, W. | Hold down device and method |
| CN2313961Y (en) * | 1997-09-29 | 1999-04-14 | 高龙俊 | Pressed prestressed steel cable anchor |
| JP2001317160A (en) * | 2000-05-09 | 2001-11-16 | Anderson Technology Kk | Auxiliary for connecting pc steel strand wire |
| CN1450234A (en) * | 2003-04-17 | 2003-10-22 | 同济大学 | Layered cement base piezoelectric intelligent composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023110260A1 (en) * | 2021-12-15 | 2023-06-22 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Körperschaft Des Öffentlichen Rechts | Reinforcement and method for operating same |
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| CN1727605A (en) | 2006-02-01 |
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Granted publication date: 20080917 Termination date: 20110727 |