CN211735381U - Pressure type shock attenuation energy dissipation prestressed anchorage pole structure - Google Patents
Pressure type shock attenuation energy dissipation prestressed anchorage pole structure Download PDFInfo
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- CN211735381U CN211735381U CN201922355030.5U CN201922355030U CN211735381U CN 211735381 U CN211735381 U CN 211735381U CN 201922355030 U CN201922355030 U CN 201922355030U CN 211735381 U CN211735381 U CN 211735381U
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Abstract
The utility model discloses a pressure type shock attenuation energy dissipation prestressed anchorage pole structure, including the stock body, the stock body includes anchor section and free section, the anchor section is arranged in connecting in the slip casting body in stock hole, the free section has the space all around, free section stretch-draw is connected energy absorber, energy absorber can drive the free section is followed free section length direction reciprocating motion, energy absorber is used for the anchor in treating on the reinforced structure body. The anchor rod structure prestress support device has the characteristics of simplicity in operation, no influence on anchor rod structure prestress and support component construction, economy, environmental protection, contribution to popularization and the like.
Description
Technical Field
The utility model relates to a geotechnical engineering field especially relates to a pressure type shock attenuation energy dissipation prestressed anchorage pole structure and construction method.
Background
The high-intensity seismic areas are distributed in large quantities in China, the investment of slope reinforcement engineering for excavation in the high-intensity seismic areas is high, and the reinforcement engineering is easy to damage under the action of earthquakes. The anchor rod is widely applied to slope reinforcement engineering, and the stress mechanism of the prestressed anchor rod is more suitable for engineering slope reinforcement. How to realize the shock absorption and energy dissipation effects of the prestressed anchor rod in a high-intensity earthquake area, thereby avoiding the problem of instability caused by overlarge instantaneous stress of the anchor rod when an earthquake occurs, being capable of enduring the repeated action of the earthquake and having good economical efficiency.
Therefore, the prestressed anchor rod structure which has the advantages of good energy dissipation effect, convenience in construction, capability of withstanding repeated earthquake action and good economy is significant, and has the characteristics of environmental protection, contribution to popularization and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems in the prior art, a pressure type shock absorption and energy dissipation pre-stressed anchor rod structure and a construction method are provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a pressure type shock attenuation energy dissipation prestressed anchorage pole structure, includes the stock body, the stock body includes anchor section and free section, the anchor section is arranged in connecting in the slip casting body in anchor rod hole, the free section has the space all around, free section stretch-draw is connected the energy absorber, the energy absorber can drive the free section is followed free section length direction reciprocating motion, the energy absorber is used for the anchor in treating on the reinforced structure body.
The structure to be reinforced comprises a side slope, a tunnel wall or a side wall.
By adopting the pressure type damping and energy dissipation prestressed anchor rod structure, the energy dissipation device is arranged between the outer side of the free section of the anchor rod body and the structure body to be reinforced, the free section and the energy dissipation device form prestress tension fixed connection, when an earthquake occurs, the energy dissipation device shrinks, deforms and dissipates energy, and after the earthquake, the energy dissipation device deforms and recovers, so that the repeated anti-seismic and energy dissipation effect is achieved, the anchor rod body is not directly connected with the structure body to be reinforced after prestress construction, and is fixedly connected with the structure body to be reinforced through the energy dissipation device, so that the anchor rod body with prestress is not influenced by subsequent construction, and the force of the anchor rod body is transmitted to the structure body to be reinforced; the anchoring section of the anchor rod body provides anchoring force, the free section provides prestress, and the gap isolates the free section from the grouting body, so that the free section can generate prestress when being tensioned; the energy dissipation device plays an energy dissipation role when an earthquake occurs and is used as a prestress locking structure of the anchor rod body; the anchor rod is simple in structure, convenient to use and good in effect.
Preferably, the free section is sleeved in a closed sleeve, and the closed sleeve is arranged in the anchor rod hole.
Further preferably, the closure sleeve is a steel sleeve or a plastic sleeve.
Further preferably, the dissipaters are located in the excavated holes.
Further preferably, a mortar closing body is filled between the energy dissipater outer wall and the excavation hole inner wall.
Further preferably, the dissipaters are connected to support members connected to the structure to be reinforced.
Further preferably, the support member is a frame grid structure.
Further preferably, the support member is a reinforced concrete structure.
Preferably, the energy dissipater comprises an elastic component and a protective sleeve, the axial direction of the protective sleeve is parallel to the length direction of the free section, the elastic component is arranged in the protective sleeve and can elastically stretch along the axial direction of the protective sleeve, the protective sleeve is used for being connected to the structure to be reinforced, one end of the elastic component in the stretching direction is connected to the free section, and the other end of the elastic component in the stretching direction is used for being connected to the structure to be reinforced.
Further preferably, the elastic member is a spring.
Further preferably, the energy dissipater further comprises an inner baffle and an outer baffle, the inner baffle and the outer baffle are respectively connected to two ends of the elastic component in the stretching direction, the inner baffle is located on one side of the anchor rod hole, the outer baffle is located on one side of the structure to be reinforced, the inner baffle is located at the end of the protective sleeve, the outer baffle is slidably arranged in the protective sleeve, the free section penetrates through the inner baffle and the outer baffle and is connected to the outer baffle, and the inner baffle is anchored on the structure to be reinforced through a connecting component.
With this arrangement, the elastic part of the energy dissipater is arranged in the protective sleeve and can move freely to deform and recover, so as to play a role in damping and dissipating energy, the inner baffle and the outer baffle are used for fixing the free section and the connecting part, and the connecting part is used for connecting the support part, so that the force of the anchor rod body is transmitted to the support part.
Further preferably, the energy dissipater further comprises an inner baffle and an outer baffle, the inner baffle and the outer baffle are respectively connected to two ends of the elastic component in the stretching direction, the inner baffle is located on one side of the anchor rod hole, the outer baffle is located on one side of the structure to be reinforced, the outer baffle is anchored on the structure to be reinforced through a connecting component, the inner baffle is slidably arranged in the protective sleeve, the free section is connected to the inner baffle, and the length of the protective sleeve meets the maximum elastic extension of the elastic component.
Further preferably, the inside barrier is a steel plate.
Further preferably, the outer barrier is a steel plate.
Further preferably, the connecting member is an anchoring bar.
Further preferably, the protective sleeve is a steel sleeve.
The utility model also provides a construction method of pressure type shock attenuation energy dissipation prestressed anchorage pole structure as above, including following step:
A. forming the anchor rod hole on the structure body to be reinforced;
B. a closed sleeve is sleeved outside the free section, and the anchor rod body and the closed sleeve are arranged in the anchor rod hole;
C. grouting the anchor rod hole, forming grouting body at the anchoring section, and anchoring the anchor rod hole;
D. forming an excavated hole in the structure to be reinforced on the basis of the anchor rod hole;
E. the end part of the free section penetrates through the inner side baffle and the outer side baffle, the anchor rod body is tensioned, prestress is applied to the free section, and the free section is connected to the outer side baffle;
F. constructing a mortar closing body in a hole between the outer wall of the protective sleeve and the inner wall of the excavation hole;
G. and the construction supporting component is connected to the connecting component and the structure body to be reinforced.
By adopting the construction method of the pressure type shock-absorbing and energy-dissipating prestressed anchor rod structure of the utility model, the energy dissipating device is arranged between the outer side of the free section of the anchor rod body and the supporting component, the free section and the energy dissipating device form a prestressed tension fixed connection, when an earthquake occurs, the elastic component of the energy dissipating device shrinks, deforms and dissipates energy, the elastic component deforms and recovers after the earthquake, and the repeated anti-seismic and energy-dissipating effect is achieved, the anchor rod body is not directly connected with the supporting component after construction prestress, and the connecting component is fixedly connected with the supporting component through the energy dissipating device, so that the construction of the supporting component does not influence the prestressed anchor rod body; the anchoring section of the anchor rod body provides anchoring force, the free section provides prestress, and the closed sleeve isolates the free section from the grouting body, so that the free section can generate prestress when being tensioned; the energy dissipater plays an energy dissipation role when an earthquake occurs and is used as a prestress locking structure of the anchor rod body, the elastic part of the energy dissipater is arranged in the protective sleeve and can freely move to generate deformation and deformation recovery so as to play a role in shock absorption and energy dissipation, the inner side baffle and the outer side baffle are used for fixing the free section and the connecting part, and the connecting part is used for connecting the supporting part so as to transmit the force of the anchor rod body to the supporting part; the method has the characteristics of simple operation, no influence of the prestress of the anchor rod structure on the construction of the supporting part, economy, environmental protection, contribution to popularization and the like.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a pressure type shock attenuation energy dissipation prestressed anchor rod structure, through set up the energy absorber between the free section outside of stock body and the structure of waiting to consolidate, the free section with the energy absorber forms prestressing force stretch-draw fixed connection, when the earthquake takes place, the energy absorber contracts the deformation energy dissipation, after the earthquake the energy absorber warp and recovers, has the energy dissipation effect of shaking repeatedly, after the construction prestressing force of stock body not directly with wait to consolidate the structure, through the energy absorber with wait to consolidate the structure fixed connection, so follow-up construction does not influence the stock body of prestressing force, and transmit the power of stock body to wait to consolidate the structure; the anchoring section of the anchor rod body provides anchoring force, the free section provides prestress, and the gap isolates the free section from the grouting body, so that the free section can generate prestress when being tensioned; the energy dissipation device plays an energy dissipation role when an earthquake occurs and is used as a prestress locking structure of the anchor rod body; the anchor rod has simple structure, convenient use and good effect;
2. the utility model discloses a pressure type shock attenuation energy dissipation prestressed anchor structure, the elastomeric element of energy absorber sets up in the protective case, can freely remove and produce deformation and deformation recovery, thereby play the effect of shock attenuation energy dissipation, inboard baffle and the outside baffle are used for fixing the free section and the adapting unit, the adapting unit is used for connecting the support component, thereby transmit the power of stock body to the support component;
3. the utility model discloses a construction method of pressure type shock attenuation energy dissipation prestressed anchor rod structure, through set up the energy absorber between the support component and the free section outside of the stock body, the free section forms prestressing force stretch-draw fixed connection with the energy absorber, when the earthquake takes place, the elastic component of energy absorber contracts the deformation energy dissipation, after the earthquake the elastic component warp and recovers, has the effect of repeated antidetonation energy dissipation, the stock body construction prestressing force after not directly be connected with the support component, through the adapting unit of energy absorber with the support component fixed connection, so the support component construction does not influence prestressing force the stock body; the anchoring section of the anchor rod body provides anchoring force, the free section provides prestress, and the closed sleeve isolates the free section from the grouting body, so that the free section can generate prestress when being tensioned; the energy dissipater plays an energy dissipation role when an earthquake occurs and is used as a prestress locking structure of the anchor rod body, the elastic part of the energy dissipater is arranged in the protective sleeve and can freely move to generate deformation and deformation recovery so as to play a role in shock absorption and energy dissipation, the inner side baffle and the outer side baffle are used for fixing the free section and the connecting part, and the connecting part is used for connecting the supporting part so as to transmit the force of the anchor rod body to the supporting part; the method has the characteristics of simple operation, no influence of the prestress of the anchor rod structure on the construction of the supporting part, economy, environmental protection, contribution to popularization and the like.
Drawings
FIG. 1 is a schematic structural view of a pressure type shock-absorbing and energy-dissipating prestressed anchor structure according to the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
fig. 3 is a schematic cross-sectional view C-C of fig. 2.
Icon: 1-anchor rod body, 11-anchoring section, 12-free section, 2-closed sleeve, 3-grouting body, 4-energy dissipation device, 41-elastic component, 42-inner baffle, 43-outer baffle, 44-connecting component, 45-protective sleeve, 5-mortar closing body, 6-supporting component, A-anchor rod hole and B-excavating hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1-3, a pressure type shock attenuation energy dissipation prestressed anchor rod structure, including stock body 1, stock body 1 includes anchor section 11 and free segment 12.
The anchoring section 11 is used for being connected to a grouting body 3 of an anchor rod hole A, gaps are formed around the free section 12, the free section 12 is sleeved in the closed sleeve 2 to form the gaps, and the closed sleeve 2 is arranged in the anchor rod hole A; specifically, the anchor rod hole A is a drilled hole, and the closed casing 2 is a steel casing or a plastic casing.
The free section 12 is tensioned and connected with an energy dissipation device 4, the energy dissipation device 4 can drive the free section 12 to reciprocate along the length direction of the free section 12, the energy dissipation device 4 is arranged in an excavation hole B, and the excavation hole B is excavated and formed on the basis of the opening of the anchor rod hole A; the structure to be reinforced comprises a side slope, a tunnel wall or a side wall.
The energy dissipater 4 comprises an elastic component 41, an inner baffle 42, an outer baffle 43, a connecting component 44 and a protective sleeve 45, wherein the axial direction of the protective sleeve 45 is parallel to the length direction of the free section 12, the elastic component 41 is arranged in the protective sleeve 45 and can elastically stretch and contract along the axial direction of the protective sleeve 45, a mortar enclosed body 5 is filled between the outer wall of the protective sleeve 45 and the inner wall of the excavation hole B, the inner baffle 42 and the outer baffle 43 are respectively connected to two ends of the elastic component 41 in the stretching direction, the inner baffle 42 is positioned on one side of the anchor rod hole A, the outer baffle 43 is positioned on one side of the structure to be reinforced, the inner baffle 42 is positioned at the end part of the protective sleeve 45, the outer baffle 43 is slidably arranged in the protective sleeve 45, the free section 12 passes through the central holes of the inner baffle 42 and the outer baffle 43 and is connected to the outer baffle 43, the inner barrier 42 is anchored to a support member 6 by means of a connecting member 44, the support member 6 being connected to the structure to be reinforced.
Specifically, elastic component 41 is the spring, the spring housing is located outside free section 12, inboard baffle 42 with outside baffle 43 is the steel sheet, adapting unit 44 is the anchor reinforcing bar, the spring housing is located outside the anchor reinforcing bar, protective sleeve 45 is the steel sleeve, support component 6 is reinforced concrete's frame grid structure, protective sleeve 45 connect in on the support component 6.
By applying the pressure type shock absorption and energy dissipation prestressed anchor rod structure of the utility model, the energy dissipation device 4 is arranged between the outer side of the free section 12 of the anchor rod body 1 and the supporting component 6, the free section 12 and the energy dissipation device 4 form a prestressed tension fixed connection, when an earthquake occurs, the elastic component 41 of the energy dissipation device 4 shrinks, deforms and dissipates energy, the elastic component 41 recovers after the earthquake, and has repeated anti-seismic and energy dissipation effects, the anchor rod body 1 is not directly connected with the supporting component 6 after being constructed with prestress, and the connecting component 44 of the energy dissipation device 4 is fixedly connected with the supporting component 6, so that the supporting component 6 is constructed without influencing the prestress of the anchor rod body 1; the anchoring section 11 of the anchor rod body 1 provides anchoring force, the free section 12 provides prestress, and the closed sleeve 2 isolates the free section 12 from the grouting body 3, so that the free section 12 can generate prestress when being tensioned; the energy dissipater 4 can dissipate energy when an earthquake occurs and serves as a prestressed locking structure of the anchor body 1, the elastic part 41 of the energy dissipater 4 is arranged in the protective sleeve 45 and can freely move to generate deformation and deformation recovery so as to play a role in absorbing shock and dissipating energy, the inner baffle 42 and the outer baffle 43 are used for fixing the free section 12 and the connecting part 44, and the connecting part 44 is used for connecting the support part 6 so as to transmit the force of the anchor body 1 to the support part 6; the anchor rod is simple in structure, convenient to use and good in effect.
Example 2
A pressure type shock attenuation energy dissipation prestressed anchorage pole structure, with embodiment 1's difference lie in, in this embodiment, interior side shield 42 with exterior side shield 43 connect respectively in the flexible direction's of elastomeric element 41 both ends, interior side shield 42 is located anchor rod hole a one side, exterior side shield 43 is located treat reinforced structure one side, exterior side shield 43 pass through adapting unit 44 anchor in treat reinforced structure is last, interior side shield 42 slides and locates in protective case 45, free section 12 connect in on the interior side shield 42, protective case 45's length satisfies the biggest elastic extension of elastomeric element 41.
Example 3
As shown in fig. 1-3, the construction method of a pressure type prestressed anchor structure with shock absorption and energy dissipation of the present invention applies a pressure type prestressed anchor structure with shock absorption and energy dissipation as described in embodiment 1, and the method includes the following steps:
A. forming the anchor rod hole A on the structure body to be reinforced;
B. the free section 12 is sleeved with the closed sleeve 2, and the anchor rod body 1 and the closed sleeve 2 are arranged in the anchor rod hole A;
C. performing high-pressure grouting on the anchor rod hole A, forming the grouting body 3 in the anchoring section 11, and anchoring the anchor rod hole A;
D. forming an excavated hole B on the structure body to be reinforced on the basis of the anchor rod hole A;
E. the end of the free section 12 passes through the inner side baffle 42 and the outer side baffle 43, the anchor rod body 1 is tensioned, the free section 12 is prestressed, and the free section 12 is welded on the outer side baffle 43;
F. constructing the mortar closing body 5 in the hole between the outer wall of the protective sleeve 45 and the inner wall of the excavated hole B;
G. the supporting member 6 is constructed, and the supporting member 6 is connected to the connecting member 44 and the structure to be reinforced.
By applying the construction method of the pressure type shock absorption and energy dissipation prestressed anchor rod structure of the utility model, the energy dissipation device 4 is arranged between the outer side of the free section 12 of the anchor rod body 1 and the support component 6, the free section 12 and the energy dissipation device 4 form a prestressed tension fixed connection, when an earthquake occurs, the elastic component 41 of the energy dissipation device 4 shrinks, deforms and dissipates energy, the elastic component 41 deforms and recovers after the earthquake, and the repeated anti-seismic energy dissipation effect is achieved, the anchor rod body 1 is not directly connected with the support component 6 after being prestressed, and is fixedly connected with the support component 6 through the connecting component 44 of the energy dissipation device 4, so that the support component 6 is constructed without influencing the prestressed anchor rod body 1; the anchoring section 11 of the anchor rod body 1 provides anchoring force, the free section 12 provides prestress, and the closed sleeve 2 isolates the free section 12 from the grouting body 3, so that the free section 12 can generate prestress when being tensioned; the energy dissipater 4 can dissipate energy when an earthquake occurs and serves as a prestressed locking structure of the anchor body 1, the elastic part 41 of the energy dissipater 4 is arranged in the protective sleeve 45 and can freely move to generate deformation and deformation recovery so as to play a role in absorbing shock and dissipating energy, the inner baffle 42 and the outer baffle 43 are used for fixing the free section 12 and the connecting part 44, and the connecting part 44 is used for connecting the support part 6 so as to transmit the force of the anchor body 1 to the support part 6; the method has the characteristics of simple operation, no influence on the prestress of the anchor rod structure and the construction of the support part 6, economy, environmental protection, contribution to popularization and the like.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a pressure type shock attenuation energy dissipation prestressed anchorage pole structure, includes stock body (1), its characterized in that, stock body (1) includes anchor section (11) and free section (12), anchor section (11) are arranged in connecting in grouting body (3) of stock hole (A), free section (12) have the space all around, free section (12) stretch-draw is connected energy dissipater (4), energy dissipater (4) can drive free section (12) are followed free section (12) length direction reciprocating motion, energy dissipater (4) are used for anchoring in treating on the reinforcement structure.
2. The pressure type shock-absorbing and energy-dissipating prestressed anchor structure according to claim 1, wherein said free section (12) is fitted in a closed sleeve (2), said closed sleeve (2) being disposed in said anchor hole (a).
3. A pressure type shock-absorbing and energy-dissipating prestressed anchor structure according to claim 2, wherein the energy dissipater (4) is provided in the excavated hole (B).
4. A pressure type shock-absorbing and energy-dissipating prestressed anchor structure according to claim 3, wherein a mortar closing body (5) is filled between the outer wall of said energy-dissipating device (4) and the inner wall of said excavated hole (B).
5. A pressure type shock-absorbing and energy-dissipating prestressed anchor structure according to claim 4, wherein the energy dissipater (4) is connected to a support member (6), and the support member (6) is connected to the structure to be reinforced.
6. A pressure type shock-absorbing and energy-dissipating prestressed anchor structure as claimed in any one of claims 1-5, wherein said energy-dissipating device (4) comprises an elastic member (41) and a protective sleeve (45), the axial direction of said protective sleeve (45) is parallel to the length direction of said free section (12), said elastic member (41) is disposed inside said protective sleeve (45) and can elastically expand and contract along the axial direction of said protective sleeve (45), said protective sleeve (45) is used for connecting to said structure to be reinforced, one end of the expansion and contraction direction of said elastic member (41) is connected to said free section (12), and the other end is used for connecting to said structure to be reinforced.
7. A pressure type shock-absorbing and energy-dissipating pre-stressed anchor structure according to claim 6, wherein the elastic member (41) is a spring.
8. A pressure type shock-absorbing and energy-dissipating pre-stressed anchor structure according to claim 6, the energy dissipater (4) further comprises an inner baffle (42) and an outer baffle (43), the inner baffle (42) and the outer baffle (43) are respectively connected with two ends of the elastic component (41) in the stretching direction, the inner side baffle (42) is positioned at one side of the anchor rod hole (A), the outer side baffle (43) is positioned at one side of the structure body to be reinforced, the inner baffle (42) is positioned at the end part of the protective sleeve (45), the outer baffle (43) is arranged in the protective sleeve (45) in a sliding way, the free section (12) passes through the inside baffle (42) and the outside baffle (43) and is connected to the outside baffle (43), the inner baffle (42) is anchored to the structure to be reinforced by means of a connecting element (44).
9. The pressure type shock-absorbing and energy-dissipating pre-stressed anchor structure according to claim 8, wherein the connecting members (44) are anchoring bars.
10. The prestressed anchor structure of claim 6, wherein the energy dissipater (4) further comprises an inner baffle (42) and an outer baffle (43), the inner baffle (42) and the outer baffle (43) are respectively connected to two ends of the elastic component (41) in the expansion direction, the inner baffle (42) is located at one side of the anchor hole (A), the outer baffle (43) is located at one side of the structure to be reinforced, the outer baffle (43) is anchored to the structure to be reinforced through a connecting component (44), the inner baffle (42) is slidably arranged in the protective sleeve (45), the free section (12) is connected to the inner baffle (42), and the length of the protective sleeve (45) satisfies the maximum elastic elongation of the elastic component (41).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922355030.5U CN211735381U (en) | 2019-12-24 | 2019-12-24 | Pressure type shock attenuation energy dissipation prestressed anchorage pole structure |
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| CN201922355030.5U CN211735381U (en) | 2019-12-24 | 2019-12-24 | Pressure type shock attenuation energy dissipation prestressed anchorage pole structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863489A (en) * | 2019-12-24 | 2020-03-06 | 中铁二院工程集团有限责任公司 | Pressure type shock-absorbing energy-dissipating pre-stressed anchor rod structure and construction method |
| CN112942862A (en) * | 2021-02-03 | 2021-06-11 | 胡鹏 | Steel bar supporting device of prestressed concrete column |
| CN115595967A (en) * | 2022-09-09 | 2023-01-13 | 重庆交通大学（Cn） | Damping type prestress self-compensating anchor cable device |
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2019
- 2019-12-24 CN CN201922355030.5U patent/CN211735381U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863489A (en) * | 2019-12-24 | 2020-03-06 | 中铁二院工程集团有限责任公司 | Pressure type shock-absorbing energy-dissipating pre-stressed anchor rod structure and construction method |
| CN110863489B (en) * | 2019-12-24 | 2024-10-18 | 中铁二院工程集团有限责任公司 | Pressure type damping energy dissipation prestress anchor rod structure and construction method |
| CN112942862A (en) * | 2021-02-03 | 2021-06-11 | 胡鹏 | Steel bar supporting device of prestressed concrete column |
| CN112942862B (en) * | 2021-02-03 | 2022-09-20 | 安徽华升项目管理有限公司 | Steel bar supporting device of prestressed concrete column |
| CN115595967A (en) * | 2022-09-09 | 2023-01-13 | 重庆交通大学（Cn） | Damping type prestress self-compensating anchor cable device |
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