CN114645508B - Self-resetting pier adopting replaceable energy-consumption beam column connecting node - Google Patents
Self-resetting pier adopting replaceable energy-consumption beam column connecting node Download PDFInfo
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- CN114645508B CN114645508B CN202210400313.0A CN202210400313A CN114645508B CN 114645508 B CN114645508 B CN 114645508B CN 202210400313 A CN202210400313 A CN 202210400313A CN 114645508 B CN114645508 B CN 114645508B
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- 238000005265 energy consumption Methods 0.000 title claims description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a self-resetting pier adopting replaceable energy-dissipation beam column connecting nodes, and belongs to the technical field of energy dissipation and shock absorption in civil engineering. The system mainly comprises pier columns, a foundation, a capping beam and a tie beam, wherein the pier columns, a bearing platform and the capping beam are integrally poured. The embedded part is arranged in the pier column, the pier column lug plate is fixedly connected to the embedded part, and the wedge-shaped body is fixedly arranged on the pier column lug plate and the tie beam. The grooves on the surfaces of the wedge-shaped bodies on the pier stud lug plates are completely attached to the grooves on the surfaces of the wedge-shaped bodies on the tie beams, and friction plates are arranged on the surfaces of the grooves. The pier stud lug plates, the pier stud lug plate wedge bodies, the tie beams and the tie beam wedge bodies are all provided with holes in the middle, and the high-strength rods sequentially penetrate through the disc springs, the tie beams, the pier stud lug plates, the tie beams and the disc springs and are connected together in a prestress mode. The invention solves the difficult problem that plastic hinge appears at the connecting part of the tie beam and the pier stud, and the residual displacement is too large to repair after earthquake, thereby effectively protecting the pier.
Description
Technical Field
The invention relates to a self-resetting pier adopting replaceable energy-dissipation beam column connecting nodes, and belongs to the technical field of energy dissipation and shock absorption in civil engineering.
Background
The earthquake disaster has the characteristics of burst nature, low predictability and high randomness, and is extremely destructive. Particularly, huge earthquake energy can be released when the middle earthquake and the large earthquake occur, the structure can be greatly damaged, even if the integral integrity of the structure is maintained, the large plastic deformation generated in the earthquake and the residual deformation left after the earthquake can reduce the capability of the structure for resisting the residual earthquake, the serious damage needs large-scale reinforcement and repair, and even only the reconstruction can cause huge waste.
As one of life line engineering, the bridge has high construction cost, and once the bridge is destroyed by earthquake, huge economic loss can be caused, and the bridge is extremely difficult to repair after earthquake. The bridge damage directly causes a large amount of casualties, but the traffic life line damage caused by the bridge damage is interrupted, so that rescue workers cannot be in place in time, repairability in a short time is often poorer than that of a road surface, an isolated island in a jolt area is formed, and economic loss and casualties caused by the bridge damage are not estimated. Therefore, the method has great practical significance for guaranteeing the post-earthquake functionality of the bridge structure. The most widely used bridge in mountain areas is the double-column bridge pier, a large number of double-column bridge piers are provided with transverse tie beams, plastic hinges are extremely easy to form at two ends of the transverse tie beams under the action of an earthquake, the damage occurs, and the requirement of function recovery after the earthquake is difficult to realize.
The metal damper has excellent energy consumption capability, increases the damping ratio of the structure, is generally lossless, is insensitive to temperature variation, and can exhibit stable energy consumption capability in many cycles. And most of the friction damping is adjustable in its sliding force.
The disc spring has excellent elasticity, is basically not affected by temperature compared with the shape memory alloy, and can realize self-resetting without heating after deformation; compared with the prestressed tendons, the prestressed tendons have larger elastic deformation, and can meet the requirements of large-deformation structures. The material is combined with the existing energy-consumption damping device, so that the performance deficiency of part of the traditional device can be made up.
Based on the above-mentioned problems and the existing vibration reduction and isolation methods, there is an urgent need for a novel pier that can not only consume energy and absorb shock sufficiently in the earthquake, but also reduce peak displacement and restore itself after the earthquake, reduce residual displacement, and restore its use function without repair or with little repair. The vibration-damping device has good energy consumption and resetting effects, can restore the structure to a pre-vibration state as much as possible while realizing the vibration-damping effect, and can effectively reduce the peak displacement and the residual displacement of the structure.
Disclosure of Invention
In order to solve the problems existing in the background technology, especially the problems that the damage of the plastic hinge area of the bridge pier is serious under the action of strong earthquake and larger residual displacement is generated and the post-earthquake repair work is difficult, the self-resetting bridge pier adopting the replaceable energy-consumption beam column connecting node is provided. When the pier is subjected to horizontal pushing and covering force, the left pier column and the right pier column move relatively, the tie beam rotates relative to the pier column, the wedge bodies are in friction sliding to dissipate seismic energy, and the disc springs are pressed to provide restoring force. The pier body, particularly the joints connected with the beams and the columns, can be effectively protected from being damaged. Residual deformation of the bridge pier is effectively reduced. The damaged part can be replaced after the earthquake, and the aims of repairing after the earthquake and quickly recovering the functions are fulfilled.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The self-resetting pier comprises a capping beam, a foundation and pier columns between the capping beam and the foundation, wherein the capping beam, the foundation and the pier columns are integrally poured together; the self-resetting friction energy consumption connecting joint also comprises a pier stud lug plate, a front tie beam, a rear tie beam and a self-resetting friction energy consumption connecting joint; the pier stud lug plates are arranged on the pier studs, and the front tie beam and the rear tie beam are connected with the pier stud lug plates on the left pier stud and the right pier stud through self-resetting friction energy consumption connecting nodes;
The self-resetting friction energy consumption connecting node mainly comprises a high-strength rod, a front disc spring, a rear disc spring, a front tie beam wedge, a rear tie beam wedge and a pier stud lug plate wedge;
The pier stud lug plate wedge bodies are fixedly arranged on the front side and the rear side of the pier stud lug plate, grooves are formed in the pier stud lug plate wedge bodies, and friction plates are arranged on the surfaces of the grooves;
The inner surface of the front tie beam is fixedly provided with a front tie beam wedge body, the inner surface of the rear tie beam is fixedly provided with a rear tie beam wedge body, and the surfaces of the front tie beam wedge body and the rear tie beam wedge body are provided with grooves;
the grooves on the surfaces of the pier stud lug plate wedges are completely pre-tightly combined with the grooves on the surfaces of the front tie beam wedges and the rear tie beam wedges respectively;
The front disc spring and the rear disc spring are respectively clamped between the end caps at the two ends of the high-strength rod and the front tie beam and the rear tie beam;
The novel anti-theft safety protection device is characterized in that holes are correspondingly formed in the middle of the front tie beam two ends, the rear tie beam two ends, the front tie beam wedge center, the rear tie beam wedge center, the pier body lug plates and the pier column lug plate wedge, the high-strength rods sequentially penetrate through the front disc springs, the front tie beam wedge, the pier column lug plate wedge at the front part of the pier column lug plates, the pier body lug plates, the pier column lug plate wedge at the rear part of the pier column lug plates, the rear tie beam wedge, the rear tie beam and the rear disc springs, and the high-strength rods are integrally pre-compressed together through end caps at the two ends of the high-strength rods.
Further, an pier stud embedded part is arranged in the pier stud, and the pier stud embedded part and the pier stud lug plate are fixed together.
Further, the pier stud embedded part is an arc-shaped embedded steel plate.
Further, the front tie beam and the front tie beam wedge are used as a whole body which is fixedly connected, the rear tie beam and the rear tie beam wedge are used as a whole body, the pier stud lug plate and the pier stud lug plate wedge are used as a whole body which is fixedly connected, and the whole bodies are only in contact relation with the high-strength rod, the front disc spring and the rear disc spring and are not fixedly connected.
Further, the friction and sliding force between the pier stud lug plate wedge body and the front and rear tie beam wedge bodies is dependent on the pretightening force provided by the end caps at the two ends of the high-strength rod, the front and rear disc springs and the friction coefficient of the friction plate in the groove, and the pretightening force is adjustable.
Further, the pier stud lug plate wedge and the front tie beam wedge should slide before yielding.
Further, the sectional shape of the pier column embedded part, the sections and the number of the front and rear tie beams can be designed and calculated according to actual requirements.
Further, both ends of the front tie beam and the rear tie beam are arc-shaped.
Further, 4 wedge-shaped grooves are formed in the pier stud lug plate wedge body.
The working principle is as follows:
Under the action of an earthquake, relative displacement occurs between the left pier column and the right pier column, the front tie beam and the rear tie beam are rotationally displaced relative to the pier body lug plate, the front tie beam wedge body and the rear tie beam wedge body are rotationally slid relative to the pier column lug plate wedge body, the attached groove surface is relatively rubbed and slid, friction force caused by friction sheets and pretightening force in the groove is overcome, and earthquake energy is dissipated; meanwhile, displacement between the front tie beam and the rear tie beam along the axial direction of the high-strength rod is increased, and the front disc spring and the rear disc spring are constrained and extruded by the end caps at the two ends of the high-strength rod, the front tie beam and the rear tie beam, so that the front tie beam and the rear tie beam are always in a pressed state, and self-restoring force is generated.
The invention has the beneficial effects that:
The self-resetting pier adopting the replaceable energy-consumption beam column connecting node has remarkable damping and self-resetting effects on the structure under the action of an earthquake, and is mainly characterized by comprising the following steps of:
1) The tie beam and the pier column are connected through self-resetting friction energy consumption connection nodes, and under the action of an earthquake, relative displacement is generated between the left pier column and the right pier column, so that the tie beam and the pier column rotate, and the damage of the pier column and the connection nodes of the transverse tie beam and the pier column is reduced.
2) The invention has the advantages of simple processing, low maintenance cost, convenient replacement and convenient replacement after earthquake.
3) The invention uses coulomb friction of rigid surface to dissipate earthquake energy and pre-press disc spring reset. And as long as the pier columns are in relative motion in the vertical direction, the disc springs of the self-resetting friction energy consumption connecting nodes are always in a pressed state, so that the pre-pressing disc springs can fully exert the self-resetting function. The larger the displacement is, the larger the restoring force provided by the pre-pressing disc spring is, and the pre-pressing disc spring can restore to the initial state after earthquake, so that the residual deformation of the structure is reduced or even eliminated. Further, the friction plate on the surface of the wedge body improves the energy consumption capability of the device.
Drawings
The invention is further illustrated by the following figures.
Fig. 1 is a schematic view of a self-resetting pier employing replaceable energy-consuming beam-column connection nodes.
Fig. 2 is a detailed view of the node indicated by the dashed box in fig. 1.
Fig. 3 is a top view of fig. 2.
FIG. 4 is a detail view of a pier stud tab and a fixed pier stud tab wedge connecting the pier studs.
Fig. 5 is a detailed view of the front and rear tie beams at the node.
Fig. 6 is a detail view of a single disc spring.
Detailed Description
Embodiments of the present invention will be described in detail with reference to fig. 1-6.
As shown in fig. 1, the self-resetting pier adopting the replaceable energy-consumption beam column connection node comprises a capping beam A, a foundation B and a pier column C between the capping beam A and the foundation B, wherein the capping beam A, the foundation B and the pier column C are integrally poured together. As shown in fig. 2, the self-resetting friction energy consumption connecting joint further comprises a pier stud lug plate 1, a front tie beam 2, a rear tie beam 3 and a self-resetting friction energy consumption connecting joint D. The pier stud lug plates 1 are arranged on the pier studs C, the front tie beam 2 and the rear tie beam 3 are connected with the pier stud lug plates 1 on the left pier stud C and the right pier stud C through self-resetting friction energy consumption connection nodes D, and the two ends of the front tie beam 2 and the rear tie beam 3 are arc-shaped. The pier column C is also provided with a pier column embedded part 6, and the pier column embedded part 6 and the pier column lug plate 1 are fixed together. In this embodiment, the pier stud embedded part 6 is an arc-shaped embedded steel plate.
As shown in fig. 2-3, the self-resetting friction energy consumption connection node D mainly comprises a high-strength rod 4, a front disc spring 5a, a rear disc spring 5b, a front tie beam wedge 2a, a rear tie beam wedge 3a and a pier stud lug plate wedge 1a.
As shown in fig. 4, the pier stud ear plate wedge body 1a is fixedly arranged on the front side and the rear side of the pier stud ear plate 1, 4 wedge-shaped grooves are formed in the pier stud ear plate wedge body 1a, and friction plates are arranged on the surfaces of the grooves.
As shown in fig. 5, the inner surface of the front tie beam 2 is fixedly provided with a front tie beam wedge 2a, the inner surface of the rear tie beam 3 is fixedly provided with a rear tie beam wedge 3a, and the surfaces of the front tie beam wedge 2a and the rear tie beam wedge 3a are both provided with grooves.
As shown in fig. 3, the grooves on the surfaces of the pier stud lug plate wedge 1a are completely pre-fitted with the grooves on the surfaces of the front and rear tie beam wedges 2a, 3a, respectively. The front disc spring 5a and the rear disc spring 5b are respectively clamped between the end caps at the two ends of the high-strength rod 4 and the front tie beam 2 and the rear tie beam 3. The two ends of the front tie beam 2, the two ends of the rear tie beam 3, the center of the front tie beam wedge 2a, the center of the rear tie beam wedge 3a, the pier body lug plate 1 and the middle of the pier column lug plate wedge 1a are correspondingly provided with holes, the high-strength rod 4 sequentially penetrates through the front disc spring 5a, the front tie beam 2, the front tie beam wedge 2a and the pier column lug plate wedge 1a at the front part of the pier column lug plate 1, the pier body lug plate 1 and the pier column lug plate wedge 1a at the rear part of the pier column lug plate 1, the rear tie beam wedge 3a, the rear tie beam 3 and the rear disc spring 5b, and is integrally pre-pressed together through end caps at the two ends of the high-strength rod 4.
Wherein, the front tie beam 2 and the front tie beam wedge body 2a are taken as a whole body which is fixedly connected, the rear tie beam 3 and the rear tie beam wedge body 3a are taken as a whole body which is fixedly connected, the pier stud lug plate 1 and the pier stud lug plate wedge body 1a are taken as a whole body which is fixedly connected, and the whole bodies are only in contact relation with the high-strength rod 4, the front disc spring 5a and the rear disc spring 5b, and are not fixedly connected.
In this embodiment, the friction between the pier stud lug wedge 1a and the front and rear tie beam wedges 2a, 3a depends on the pre-tightening force provided by the end caps at the two ends of the high-strength rod 4 and the front and rear disc springs 5a, 5b and the friction coefficient of the friction plate in the groove, and the pre-tightening force is adjustable. The abutment lug plate wedge 1a should slide with the front tie beam wedge 2a and the rear tie beam wedge 3a before the tie beam yields. The sectional shape of the pier column C, the sectional shape of the pier column embedded part 6, the sections and the number of the front and rear tie beams can be designed and calculated according to actual requirements.
The working principle is as follows:
under the action of an earthquake, relative displacement occurs between the left pier column C and the right pier column C, the front tie beam 2 and the rear tie beam 3 are in rotary displacement relative to the pier body lug plate 1, the front tie beam wedge body 2a and the rear tie beam wedge body 3a are caused to rotationally slide relative to the pier column lug plate wedge body 1a, the attached groove surface is in relative friction sliding, friction caused by friction sheets in the groove and pretightening force is overcome, and earthquake energy is dissipated. Meanwhile, displacement between the front tie beam 2 and the rear tie beam 3 along the axial direction of the high-strength rod 4 is increased, and the front disc spring 5a and the rear disc spring 5b are constrained and extruded by the end caps at the two ends of the high-strength rod 4, the front tie beam 2 and the rear tie beam 3, so that the front tie beam 2 and the rear tie beam are always in a pressed state, and self-restoring force is generated.
In view of the foregoing, it will be appreciated that in the embodiments of the invention described above, those skilled in the art will appreciate that the foregoing embodiments are illustrative and that the present invention is not to be construed as limited thereto, and that various changes, modifications, substitutions and alterations can be made without departing from the spirit and scope of the present invention.
Claims (6)
1. The self-resetting pier comprises a capping beam (A), a foundation (B) and a pier column (C) between the capping beam (A) and the foundation (B), wherein the capping beam (A), the foundation (B) and the pier column (C) are integrally poured together; the method is characterized in that: the self-resetting friction energy consumption connecting joint (D) is characterized by further comprising a pier stud lug plate (1), a front tie beam (2), a rear tie beam (3) and a self-resetting friction energy consumption connecting joint; the pier stud lug plates (1) are arranged on the pier studs (C), and the front tie beams (2) and the rear tie beams (3) are connected with the pier stud lug plates (1) on the left pier stud (C) and the right pier stud (C) through self-resetting friction energy consumption connecting nodes (D);
The self-resetting friction energy consumption connecting node (D) mainly comprises a high-strength rod (4), a front disc spring (5 a), a rear disc spring (5 b), a front tie beam wedge (2 a), a rear tie beam wedge (3 a) and a pier stud lug plate wedge (1 a);
The pier stud lug plate wedge body (1 a) is fixedly arranged on the front side and the rear side of the pier stud lug plate (1), grooves are formed in the pier stud lug plate wedge body (1 a), and friction plates are arranged on the surfaces of the grooves;
The inner surface of the front tie beam (2) is fixedly provided with a front tie beam wedge body (2 a), the inner surface of the rear tie beam (3) is fixedly provided with a rear tie beam wedge body (3 a), and the surfaces of the front tie beam wedge body (2 a) and the rear tie beam wedge body (3 a) are provided with grooves;
Grooves on the surfaces of the pier stud lug plate wedges (1 a) are completely pre-tightly combined with grooves on the surfaces of the front tie beam wedges (2 a) and the rear tie beam wedges (3 a) respectively;
The front disc spring (5 a) and the rear disc spring (5 b) are respectively clamped between end caps at two ends of the high-strength rod (4) and the front tie beam (2) and the rear tie beam (3);
the front tie beam (2) both ends, the back tie beam (3) both ends, the front tie beam wedge (2 a) center, the back tie beam wedge (3 a) center, the pier body lug plate (1) and the pier column lug plate wedge (1 a) middle are respectively provided with holes correspondingly, the high-strength rod (4) sequentially penetrates through the front disc spring (5 a), the front tie beam (2), the front tie beam wedge (2 a), the pier column lug plate wedge (1 a) at the front part of the pier column lug plate (1), the pier body lug plate (1), the pier column lug plate wedge (1 a) at the back part of the pier column lug plate (1), the back tie beam wedge (3 a), the back tie beam (3) and the back disc spring (5 b), and is integrally pre-pressed together through the end caps at both ends of the high-strength rod (4);
Under the action of an earthquake, relative displacement occurs between the left pier column (C) and the right pier column (C), the front tie beam (2) and the rear tie beam (3) are rotationally displaced relative to the pier body ear plate (1), the front tie beam wedge body (2 a) and the rear tie beam wedge body (3 a) are rotationally slid relative to the pier column ear plate wedge body (1 a), the attached groove surfaces are relatively rubbed and slid, friction force caused by friction sheets and pretightening force in the groove is overcome, and earthquake energy is dissipated; meanwhile, displacement between the front tie beam (2) and the rear tie beam (3) along the axial direction of the high-strength rod (4) is increased, and the front disc spring (5 a) and the rear disc spring (5 b) are constrained and extruded by end caps at two ends of the high-strength rod (4) and the front tie beam (2) and the rear tie beam (3), so that the front tie beam and the rear tie beam are always in a pressed state, and self-restoring force is generated;
The front tie beam (2) and the front tie beam wedge body (2 a) are used as a whole body which is fixedly connected, the rear tie beam (3) and the rear tie beam wedge body (3 a) are used as a whole body which is fixedly connected, and the pier stud lug plate (1) and the pier stud lug plate wedge body (1 a) are only in contact relation with the high-strength rod (4), the front disc spring (5 a) and the rear disc spring (5 b) and are not fixedly connected;
The friction sliding force between the pier stud lug plate wedge body (1 a) and the front tie beam wedge body (2 a) and between the pier stud lug plate wedge body and the rear tie beam wedge body (3 a) is dependent on the pretightening force provided by the end caps at the two ends of the high-strength rod (4) and the front disc springs (5 a) and the rear disc springs (5 b) and the friction coefficient of friction sheets in the grooves, and the pretightening force is adjustable;
The pier stud lug plate wedge body (1 a), the front tie beam wedge body (2 a) and the rear tie beam wedge body (3 a) slide before yielding.
2. The self-resetting pier employing replaceable energy-consuming beam-column connection nodes according to claim 1, wherein: the pier stud (C) is internally provided with a pier stud embedded part (6), and the pier stud embedded part (6) and the pier stud lug plate (1) are fixed together.
3. A self-resetting pier employing replaceable energy-consuming beam-column connection nodes according to claim 2, characterized in that: the pier stud embedded part (6) is an arc-shaped embedded steel plate.
4. The self-resetting pier employing replaceable energy-consuming beam-column connection nodes according to claim 1, wherein: the sectional shape of the pier column (C), the sectional shape of the pier column embedded part (6), the sections and the number of the front and rear tie beams can be designed and calculated according to actual requirements.
5. The self-resetting pier employing replaceable energy-consuming beam-column connection nodes according to claim 4, wherein: both ends of the front tie beam (2) and the rear tie beam (3) are arc-shaped.
6. The self-resetting pier employing replaceable energy-consuming beam-column connection nodes according to claim 1, wherein: 4 wedge-shaped grooves are formed in the pier stud lug plate wedge-shaped body (1 a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210400313.0A CN114645508B (en) | 2022-04-16 | 2022-04-16 | Self-resetting pier adopting replaceable energy-consumption beam column connecting node |
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| CN202210400313.0A CN114645508B (en) | 2022-04-16 | 2022-04-16 | Self-resetting pier adopting replaceable energy-consumption beam column connecting node |
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| CN115404985B (en) * | 2022-10-10 | 2023-07-11 | 重庆大学 | Friction energy-consumption hinge assembly, multi-stage energy-consumption system and energy-consumption damping method |
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| CN212742172U (en) * | 2020-06-24 | 2021-03-19 | 上海史狄尔建筑减震科技有限公司 | Double-column type self-resetting energy-consuming pier with friction damper |
| CN213390655U (en) * | 2020-08-20 | 2021-06-08 | 中交鹭建有限公司 | Self-resetting SMA-lead viscoelastic damper |
| CN112761061A (en) * | 2020-11-18 | 2021-05-07 | 合肥工业大学 | Steel friction hinge energy-consumption tie beam structure for double column pier and construction method thereof |
| CN216156853U (en) * | 2020-12-31 | 2022-04-01 | 上海史狄尔建筑减震科技有限公司 | Friction viscoelastic composite damper |
| CN215405547U (en) * | 2021-07-22 | 2022-01-04 | 广州大学 | Rotary self-resetting node |
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| CN114645508A (en) | 2022-06-21 |
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