WO2019223294A1 - 一种新型减震自复位耗能拉索支撑装置 - Google Patents

一种新型减震自复位耗能拉索支撑装置 Download PDF

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Publication number
WO2019223294A1
WO2019223294A1 PCT/CN2018/121105 CN2018121105W WO2019223294A1 WO 2019223294 A1 WO2019223294 A1 WO 2019223294A1 CN 2018121105 W CN2018121105 W CN 2018121105W WO 2019223294 A1 WO2019223294 A1 WO 2019223294A1
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WIPO (PCT)
Prior art keywords
consuming
energy
plate
resetting
force
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PCT/CN2018/121105
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English (en)
French (fr)
Inventor
池沛
田文龙
曹大富
刘荣
邢通
吴前昌
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扬州大学
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Priority claimed from CN201810492656.8A external-priority patent/CN108532836B/zh
Priority claimed from CN201820771512.1U external-priority patent/CN208347134U/zh
Application filed by 扬州大学 filed Critical 扬州大学
Publication of WO2019223294A1 publication Critical patent/WO2019223294A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions

Definitions

  • the invention belongs to the technical field of shock-absorbing equipment, and relates to a self-resetting energy-consuming cable supporting device, in particular to a kind of self-resetting, force-limiting, energy-consuming, and protecting main structure suitable for engineering shock absorption. Cable supporting device.
  • the support frame As an efficient lateral force resistance system, the support frame is widely used in the field of engineering earthquake resistance, and the performance of the support directly determines the earthquake resistance performance of the system.
  • the traditional support frame system often produces large irrecoverable deformation after a strong earthquake, which seriously jeopardizes the safety of the building, is difficult to repair and costly.
  • the self-resetting support is a relatively new type of support, which can effectively solve the problem that the existing support structure is difficult to repair after an earthquake.
  • Self-resetting energy-dissipating cable support is a type of self-resetting support, which has the advantages of small support cross-section rigidity and reducing earthquake effects, but also has the following disadvantages: (1) each high-strength steel cable requires a self-resetting mechanism, The self-reset mechanism has a low utilization rate; (2) the reset capability of the self-reset mechanism is insufficient and needs to be further improved; (3) the support lacks an effective protection mechanism when subjected to earthquakes exceeding the fortification intensity; (4) the existing reset bars Materials are mostly used-fiber reinforced composite materials, which have poor bending properties and cannot be bent at the pulley.
  • the object of the present invention is to address the shortcomings of the existing self-resetting energy-consuming cable support during use, and propose a new type of shock-absorbing self-resetting energy-consuming cable support device, which can further improve the self-resetting ability of the support; Widen the selection range of prestressed resetting bar materials; effectively restrain the growth of supporting internal forces under earthquakes exceeding the fortification intensity, and further increase energy consumption capacity, thereby strengthening the protection of main structural members such as beams and columns; overcome the existing resetting bar material-fiber reinforcement The disadvantage that the composite material cannot be bent at the pulley; improves the utilization rate of the self-resetting mechanism and reduces the economic cost.
  • the technical solution of the present invention is a novel shock-absorbing self-resetting energy-consuming cable supporting device, which is characterized in that the device is composed of a reset mechanism, a reset energy-consuming mechanism, a force-limiting energy-consuming mechanism, a high-strength steel cable and a base;
  • the resetting mechanism is disposed in the middle of the two bases, the resetting energy consuming mechanism is disposed on both sides of the resetting mechanism, the force limiting energy consuming mechanism is connected to the outside of the resetting energy consuming mechanism, and the high-strength steel
  • the cable is connected to the outside of the force-limiting energy-consuming mechanism.
  • the reset mechanism is composed of a pulley bracket, a pulley, a connecting sleeve, a prestressed reset rib and a high-strength steel strand connection; the pulley is fixed on the base through the pulley bracket, and the prestressed reset rib and high-strength steel
  • the stranded wire is wound and arranged between the two sets of pulleys after being connected through the connection sleeve, and the high-strength steel stranded wire is arranged at a curved section of each pulley.
  • the resetting energy dissipating mechanism is composed of a stiffening rib, a limit plate, a sliding frame, a resetting energy dissipating friction plate, a resetting energy dissipating steel pad plate and a connecting plate; the limit plate is welded and fixed to the base, and the stiffening rib
  • the sliding frame is fixedly disposed on one side of the limiting plate, and the sliding frame is disposed on the other side of the limiting plate; the sliding frame is composed of a first sliding plate, a second sliding plate, a third sliding plate, and a fourth The sliding plates are welded to each other in a “mouth” shape.
  • the high-strength steel strand on the pulley passes through the limit plate and is connected and fixed to the first sliding plate.
  • the inner and outer sides of the second and fourth sliding plates are provided with The resetting energy consuming friction plate and the resetting energy consuming steel backing plate, the cross section of the connecting plate is "L" shaped, and is arranged on the outside of the resetting energy consuming steel backing plate.
  • the force-limiting energy-consuming mechanism is composed of a fifth sliding plate, a friction-limiting energy-consuming friction plate, and a force-limiting energy-consuming steel backing plate; the fifth sliding plate and the third sliding plate are welded to form a "T" -shaped structure
  • the force-limiting energy-consuming friction plates are disposed on both sides of the fifth sliding plate, the force-limiting energy-consuming steel pad plates have a “]” structure, and the force-limiting energy-consuming steel pad plates are snap-fitted at Outside of the force-limiting energy-consuming friction plate, slot holes are provided on the fifth sliding plate.
  • the force-limiting energy-consuming friction plate and the force-limiting energy-consuming steel pad plate are provided with round holes, and bolts pass through the holes. After the slot holes and the circular holes are screwed tightly, a pre-pressure is established between the force-limiting friction plate and the fifth sliding plate.
  • the high-strength steel cable is connected and fixed with a force-limiting and energy-consuming steel backing plate through an anchor.
  • the number of the pulleys is four, and two on each side are symmetrically distributed, and the pulleys on the same side are vertically distributed.
  • the groove width of each pulley is greater than twice the diameter of the prestressed reset rib.
  • the reset energy-consuming friction plate, the reset energy-consuming steel plate, the connection plate and the sliding plate are all the same in height.
  • the number of holes is the same and the center heights are the same.
  • the heights of the first sliding plate, the second sliding plate, the third sliding plate, and the fourth sliding plate are equal, and the length of the second sliding plate and the fourth sliding plate is greater than the length of the reset energy-consuming friction plate.
  • the fifth sliding plate, the force-limiting energy-consuming friction plate, and the force-limiting energy-consuming steel pad plate have the same height.
  • the holes are of equal height, and through holes are provided on the force-limiting energy-consuming steel pad.
  • the high-strength steel cables pass through the holes and are fixed on the inner side of the force-limiting energy-consuming steel pads through anchors.
  • the beneficial effects of the present invention are: a new type of shock absorbing and self-resetting energy-consuming cable support device provided by the present invention, which has a novel structure and clear working principle, and is structurally composed of a reset mechanism, a reset energy-consuming mechanism, a force-limiting energy-consuming mechanism, and a high strength
  • the connection between the steel cable and the base has the following advantages compared with the existing self-resetting energy-consuming cable support:
  • the strain rate is reduced to one third of that without the pulleys; therefore, when the prestressed resetting ribs reach elasticity At the limit, the self-resetting energy-consuming cable support with the pulley can be doubled compared to the self-resetting ability without the pulley.
  • the material selection range of the prestressed resetting ribs is further widened.
  • the length of the prestressed resetting rib is doubled, so that when the prestressed resetting rib is deformed by the same length, the strain rate is reduced to one third of that when the pulley is not provided. Therefore, in theory, when the same self-resetting ability is reached, the self-resetting energy-consuming cable support provided with the pulley can reduce the elastic elongation of the prestressed reset tendon material by two-thirds compared to the case without the pulley, thereby widening.
  • the selection range of the materials for the prestressed resetting ribs makes it easier to select the appropriate engineering materials.
  • one self-resetting mechanism can match two high-strength steel cables, reducing the number of self-resetting mechanisms by half, thereby reducing economic costs.
  • a connection sleeve is provided to overcome the disadvantage that the existing reset rib material cannot be bent at the pulley.
  • the existing resetting tendon materials mostly use fiber reinforced composite materials, which have poor bending performance and cannot be bent at the pulley.
  • the curved section around the pulley is made of high-strength steel stranded wire, and the straight section is made of fiber-reinforced composite material or other materials. The curved section and the straight section's return rib are connected by a connecting sleeve.
  • FIG. 1 is a schematic diagram of the overall structure of the present invention.
  • FIG. 2 is a schematic diagram of a three-dimensional structure of the middle part of the present invention.
  • FIG. 3 is a schematic structural diagram of a reset energy consuming mechanism in the present invention.
  • FIG. 4 is a schematic structural diagram of a force limiting energy consuming mechanism of the present invention.
  • FIG. 5 is a schematic diagram of a connection structure of a pulley part in the present invention.
  • FIG. 6 is a schematic structural diagram of a friction plate and a steel backing plate in the present invention.
  • FIG. 7 is a schematic structural diagram of a connecting plate in the present invention.
  • FIG. 8 is a schematic structural diagram of a second sliding plate, a fourth sliding plate, and a fifth sliding plate in the present invention.
  • FIG. 9 is a schematic diagram of the installation structure of the present invention in a building.
  • pulley 1 connecting sleeve 2, round hole 3, pre-stressed reset rib 4, anchor 5, anchor plate 6, sliding frame 7, base 8, stiffener 9, high-strength steel cable 10, reset energy consumption friction Plate 11, reset energy-consuming steel plate 12, connection plate 13, force-limiting energy-consuming steel plate 14, first sliding plate 15, second sliding plate 16, third sliding plate 17, fourth sliding plate 18, fifth Sliding plate 19, slot 20, high-strength steel strand 21, force-limiting energy-consuming friction plate 22, outer pulley 23, building structure 24, substructure 25, tension cable 26, unstressed cable 27, pulley bracket 28 , Resetting mechanism A, resetting energy-consuming mechanism B, and energy-limiting energy-consuming mechanism C.
  • a new type of shock-absorbing self-resetting energy-consuming cable supporting device is composed of a resetting mechanism A, a resetting energy-consuming mechanism B, a force-limiting energy-consuming mechanism C, a high-strength steel cable 10 and a base 8; resetting The mechanism A is located in the middle of the two bases 8, the resetting energy consuming mechanism B is provided on both sides of the resetting mechanism A, the force limiting energy consuming mechanism C is connected to the outside of the resetting energy consuming mechanism B, and the high-strength steel cable 10 is connected to the limiting force The outside of the energy dissipation mechanism C; the reset mechanism A is composed of a pulley bracket 28, a pulley 1, a connecting sleeve 2, a prestressed reset rib 4, and a high-strength steel strand 21; the pulley 1 is fixed on the base 8 through a pulley bracket 28, The stress-reducing tendon 4 and the high-streng
  • the energy-reducing mechanism B is composed of a stiffener 9, a limit plate 6, a sliding frame 7, a friction-reducing friction plate 11, and a energy-reducing steel.
  • the backing plate 12 and the connecting plate 13 are formed; the limit plate 6 and the base 8 are welded and fixed, the stiffening rib 9 is fixedly disposed on one side of the limit plate 6, and the sliding frame 7 is slid on the other side of the limit plate 6; the sliding frame 7
  • the first sliding plate 15, the second sliding plate 16, the third sliding plate 17, and the fourth sliding plate 18 are welded to each other in a "mouth" shape.
  • the high-strength steel wire 21 on the pulley 1 passes through the limit plate 6 and The first sliding plate 15 is connected and fixed.
  • the inner and outer sides of the second sliding plate 16 and the fourth sliding plate 18 are provided with a reset energy-consuming friction plate 11 and a reset energy-consuming steel pad plate 12, and the cross-section of the connection plate 13 is "L" shaped. It is arranged on the outside of the energy-dissipating steel backing plate 12.
  • the limb plates of the connecting plate are provided with a plurality of circular holes 3, and the second sliding plate 16 and the fourth sliding plate 18 at positions corresponding to the circular holes 3 are provided with several slots. Hole 20, the energy-reducing friction plate 11, and the energy-reducing steel backing plate 12 are provided with a circular hole 3 corresponding to the limb plate.
  • the reset pin 11 and the second friction plate energy slide plate 16 establishing a pre-pressure between the fourth sliding plate 18, the connecting plate 13 by a bolt 8 fixed to the base.
  • the force-limiting energy-consuming mechanism C is composed of a fifth sliding plate 19, a force-limiting energy-consuming friction plate 22, and a force-limiting energy-consuming steel pad plate 14.
  • the fifth sliding plate 19 and the third sliding plate 17 are welded into a "T" -shaped structure, the force-limiting energy-consuming friction plate 22 is provided on both sides of the fifth sliding plate 19, and the force-limiting energy-consuming steel pad plate 14 becomes "] "Shaped structure, the force-limiting energy-consuming steel pad plate 14 is snap-fitted on the outside of the force-limiting energy-consuming friction plate 22, and the fifth sliding plate 19 is provided with a slot 20, the force-limiting energy-consuming friction plate 22 and the force-limiting energy consumption
  • the steel backing plate 14 is provided with a circular hole 3, and the bolt passes through the slotted hole 20 and the circular hole 3 and is tightened. A preload is established between the force-limiting friction plate 22 and the fifth sliding plate 19, and the high-strength steel cable 10 passes
  • the anchor 5 is connected and fixed with the force-limiting and energy-consuming steel backing plate 14.
  • a new type of shock-absorbing self-resetting energy-consuming cable support device As shown in Figure 1-8, a new type of shock-absorbing self-resetting energy-consuming cable support device.
  • the number of pulleys 1 is four, two on each side are symmetrically distributed, and the pulleys on the same side are distributed up and down, each
  • the groove width of the pulley 1 is greater than twice the diameter of the prestressed reset rib 4; the energy-reducing friction plate 11, the energy-reducing steel back plate 12, the connecting plate 13 and the sliding plate are all the same height, and the energy-reducing friction plate 11 and the reset
  • the number of circular holes on the energy-dissipating steel backing plate 12 and the connecting plate 13 is the same as the number of slot holes on the sliding plate and the center height is equal; the first sliding plate 15, the second sliding plate 16, the third sliding plate 17, and the fourth sliding plate.
  • the heights of the plates 18 are equal, and the length of the second sliding plate 16 and the fourth sliding plate 18 is longer than the length of the reset energy-consuming friction plate 11; the fifth sliding plate 19, the force-limiting friction plate 22, and the force-limiting steel pad plate 14 has the same height, and the slot hole 20 on the fifth sliding plate 19 is the same height as the circular hole on the force-limiting energy-consuming friction plate 22 and the force-limiting energy-consuming steel backing plate 14.
  • the high-strength steel cable 10 passes through the through hole and is fixed on the inner side of the force-limiting and energy-consuming steel backing plate 14 through the anchor 5.
  • the working principle of a new type of vibration-damping self-resetting energy-consuming cable support device is as follows: the pulley 1 is fixed on the base 8, and the base 8 is provided with a plurality of round holes 3, which are fixed to the structural body by bolts. .
  • the prestressing reset bar 4 is made of a material with high tensile strength and low elastic modulus. One end is anchored on the sliding frame 7 by the anchor 5 and the other end bypasses the pulley 1 to establish the prestress using the post-tensioning method.
  • the anchor 5 is connected to the other end sliding frame 7. Among them, the prestress resetting rib 4 adopts the connecting sleeve 2 at the pulley 1.
  • the limit plate 6 is used to restrict the sliding frame 7 from moving to the middle.
  • the limit plate 6 is fixed on the base 8 by welding, and several stiffening ribs 9 are provided to strengthen the limit. Stiffness of the bit plate 6.
  • the second sliding plate 16, the fourth sliding plate 18, the resetting energy-consuming friction plate 11, the resetting energy-consuming steel backing plate 12 and the connecting plate 13 are connected by bolts, the connecting plate 13 is connected to the base 8, and the fifth sliding plate 19,
  • the force-limiting energy-consuming friction plate 22 is connected to the force-limiting energy-consuming steel pad plate 14.
  • the working process of a new type of vibration-damping self-resetting energy-consuming cable supporting device in a building structure is as follows: the entire device is arranged in parallel on the building structural beam and installed on a frame beam near the beam-column node position The pulley guides the high-strength steel cable towards the top of both sides of the building structure. Under the action of the direction load F in the figure (the solid line represents the stressed steel cable and the dashed line represents the unstressed steel cable), the stressed cable is stretched, which drives the reset energy dissipation mechanism and the force limiting energy dissipation mechanism to work successively.
  • the invention can double the length of the prestressed resetting rib by providing a pulley set, so that when the prestressed resetting rib is deformed with the same length, the strain rate is reduced to one third of that when no pulley is provided. In this way, the self-resetting deformation ability can be doubled on the one hand; on the other hand, the elastic elongation requirement of the prestressed resetting rib material can be reduced, thereby further expanding the material selection range.
  • the limit plate is used to limit the end of the prestressed reset rib to the middle.
  • the second slide plate, the fourth slide plate, and the fifth slide plate open a certain number of slot holes, which can slide along the length of the slot holes.
  • the sliding friction between the second sliding plate and the fourth sliding plate and the resetting energy dissipating friction plate dissipates the input seismic energy.
  • the force-limiting energy-dissipating mechanism restrains the increase of the supporting axial force through the relative sliding of the fifth sliding plate and the force-limiting energy-consuming friction plate, protects the main structure and further dissipates seismic energy.
  • the tensile force of the high-strength steel cable is insufficient to overcome the sum of the frictional force provided by the energy-dissipating friction plate and the pre-tensioning force of the prestressed reset rib. Therefore, the end of the high-strength steel cable connected to the sliding frame is equivalent to the fixed end. Under these conditions, only high-strength steel cables play a supporting role.
  • the tensile force of the high-strength steel cable overcomes the sum of the frictional force provided by the energy-dissipating friction plate and the pre-tensioning force of the prestressed reset rib, so the high-strength steel cable will pull the sliding frame to move.
  • the high-strength steel cable and the prestressed reset tendon are in a series relationship.
  • the overall stiffness of the self-resetting energy-dissipating cable support is significantly reduced compared to the rigidity of the high-strength steel cable, thereby suppressing the rapid increase of seismic force and realizing the protection of the main structure. .
  • the relative sliding between the sliding frame and the resetting energy dissipating friction plate dissipates seismic energy.
  • the tensile force of the prestressed reset bar is always greater than the maximum static friction force, so the sliding frame is pulled to move to the initial position until the contact limit plate is stationary, and the self-reset function is realized.
  • the tensile strength of the high-strength steel cable is further increased until the fifth sliding plate and the force-limiting energy-consuming friction plate relatively slide.
  • the energy-limiting energy-consuming mechanism began to work, curb the increase of the supporting axial force, and further dissipate seismic energy to protect the main structure.

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Abstract

一种新型减震自复位耗能拉索支撑装置，属于减震设备技术领域，由复位机构（A）、复位耗能机构（B）、限力耗能机构（C）、高强钢索（10）和底座（8）组成；复位机构（A）设置在两底座（8）的中间，复位耗能机构（B）设置在复位机构（A）的两侧，限力耗能机构（C）连接设置在复位耗能机构（B）的外侧，高强钢索（10）连接设置在限力耗能机构（C）的外侧；该装置进一步提高了支撑的自复位能力；拓宽了预应力复位筋材料的选抒范围；有效遏止超过设防烈度地震作用下支撑内力增长，进一步提高了耗能能力，从而加强对梁、柱等主体结构构件的保护；克服了现有复位筋材料一纤维增强复合材料在滑轮处无法弯曲的不足；提高了自复位机构的利用率，降低了经济成本。

Description

一种新型减震自复位耗能拉索支撑装置 技术领域
本发明属于减震设备技术领域，涉及一种自复位耗能拉索支撑装置，具体地说是涉及一种适用于工程减震中具有自复位、限力、耗能、对主体结构形成保护的拉索支撑装置。
背景技术
支撑框架作为高效的抗侧力体系，在工程耐震领域应用广泛，支撑的性能直接决定了体系的耐震性能。然而传统的支撑框架体系在强震后往往会产生较大的不可恢复变形，严重危害建筑物的安全，修复困难且代价高昂。
自复位支撑是一种较为新颖的支撑形式，可有效解决现有支撑结构震后难以修复的问题。自复位耗能拉索支撑是自复位支撑的一种，具有支撑截面刚度小，减轻地震作用的优点，但还存在以下不足：(1)每1根高强钢索都需要1个自复位机构，自复位机构利用率较低；(2)自复位机构的复位能力不足，有待进一步提高；(3)支撑在遭受超过设防烈度地震作用时，缺乏有效的保护机制；(4)现有的复位筋材料多采用—纤维增强复合材料，其弯曲性能差，无法在滑轮处弯折。
发明内容
本发明的目的是针对现有自复位耗能拉索支撑在使用过程中存在的不足，提出一种新型减震自复位耗能拉索支撑装置，通过该装置可进一步提高支撑的自复位能力；拓宽预应力复位筋材料的选择范围；有效遏止超过设防烈度地震作用下支撑内力增长，进一步提高耗能能力，从而加强对梁、柱等主体结构构件的保护；克服现有复位筋材料—纤维增强复合材料在滑轮处无法弯曲的不足；提高自复位机构的利用率，降低了经济成本。
本发明的技术方案：一种新型减震自复位耗能拉索支撑装置，其特征在于：所述装置是由复位机构、复位耗能机构、限力耗能机构、高强钢索和底座组成；所述复位机构设置在两底座的中间，所述复位耗能机构设置在所述复位机构的两侧，所述限力耗能机构连接设置在所述复位耗能机构的外侧，所述高强钢索与所述限力耗能机构外侧连接。
所述复位机构由滑轮支架、滑轮、连接套筒、预应力复位筋和高强钢绞线连接构成；所述滑轮通过所述滑轮支架固定在所述底座上，所述预应力复位筋与高强钢绞线通过所述连接套筒连接后缠绕设置在所述两组滑轮之间，所述高强钢绞线设置在每个滑轮的弯曲段处。
所述复位耗能机构由加劲肋、限位板、滑动框、复位耗能摩擦板、复位耗能钢垫板和连接板构成；所述限位板与所述底座焊接固定，所述加劲肋固定设置在所述限位板的一侧，所述滑动框设置在所述限位板的另一侧；所述滑动框由第一滑动板、第二滑动板、第三滑动板和第四滑动板相互焊接成“口”字形结构，所述滑轮上的高强钢绞线穿过限位板与第一滑动板连接固定，所述第二滑动板和第四滑动板的内外侧面均设有所述复位耗能摩擦板和复位耗能钢垫板，所述连接板横截面成“L”形，设置在所述复位耗能钢垫板的外侧，所述连接板的两肢板上设有若干圆孔，与圆孔对应位置的所述第二滑动板和第四滑动板上设槽孔，所述复位耗能摩擦板、复位耗能钢垫板上设有与肢板对应的圆孔，通过旋紧穿过圆孔和槽孔的螺栓在复位耗能摩擦板与第二滑动板、第四滑动板之间建立预压力，所述连接板通过螺栓固定在底座上。
所述限力耗能机构由第五滑动板、限力耗能摩擦板和限力耗能钢垫板构成；所述第五滑动板与所述第三滑动板焊接连接成“T”字形结构，所述限力耗能摩擦板设置在所述第五滑动板的两侧，所述限力耗能钢垫板成“]”形结构，所述 限力耗能钢垫板卡接设置在所述限力耗能摩擦板的外侧，所述第五滑动板上设有槽孔，所述限力耗能摩擦板和限力耗能钢垫板上均设有圆孔，螺栓穿过所述槽孔和圆孔后旋紧，在限力耗能摩擦板和第五滑动板间建立预压力。
所述高强钢索通过锚具与限力耗能钢垫板连接固定。
所述滑轮的数量为4个，每侧2个呈对称分布，同侧的滑轮呈上下式分布，每个滑轮的槽宽大于两倍的预应力复位筋直径。
所述复位耗能摩擦板、复位耗能钢垫板、连接板与滑动板的高度均相同，复位耗能摩擦板、复位耗能钢垫板、连接板上的圆孔与滑动板上的槽孔的数量相同且中心高相等。
所述第一滑动板、第二滑动板、第三滑动板和第四滑动板的高度相等，第二滑动板和第四滑动板的长度大于复位耗能摩擦板的长度。
所述第五滑动板、限力耗能摩擦板和限力耗能钢垫板高度相等，第五滑动板上的槽孔与限力耗能摩擦板、限力耗能钢垫板上的圆孔等高，限力耗能钢垫板上设有通孔，高强钢索穿过通孔通过锚具固定在限力耗能钢垫板的内侧。
本发明的有益效果为：本发明提出的一种新型减震自复位耗能拉索支撑装置，结构新颖，工作原理清晰，结构上由复位机构、复位耗能机构、限力耗能机构、高强钢索和底座连接构成，与现有的自复位耗能拉索支撑相比，具有如下优点：
(1)进一步提高自复位能力。在中-大震地震条件下，预应力复位筋的拉力始终大于最大静摩擦力，因此拉动滑动框向初始位置运动，直至接触限位板静止，实现自复位，从而消除了支撑自身的残余变形；通过设置滑轮组将预应力复位筋的长度增加两倍，当预应力复位筋发生同等长度的变形时，应变率减小为不设置滑轮时的三分之一；因此，当预应力复位筋达到弹性极限时，设置滑轮的 自复位耗能拉索支撑可比不设置滑轮时的自复位能力提高两倍。
(2)进一步拓宽了预应力复位筋的材料的选择范围。通过设置滑轮将预应力复位筋的长度增加两倍，从而当预应力复位筋发生同等长度的变形时，应变率减小为不设置滑轮时的三分之一。因此在理论上，当达到同样的自复位能力时，设置滑轮的自复位耗能拉索支撑可比不设置滑轮时对于预应力复位筋材料的弹性伸长率要求降低三分之二，从而扩宽了预应力复位筋的材料的选择范围，使选用合适的工程材料更加容易。
(3)进一步提高耗能能力。实现对支撑及主体结构的多重保护。在超过设防烈度地震条件下，通过设置限力耗能机构，可有效遏止支撑内力增长，并进一步补充提供耗能能力，从而加强对梁、柱等主体结构构件的保护。
(4)提高自复位机构的利用率。相比现有的自复位耗能拉索支撑，1个自复位机构可匹配2根高强钢索，将自复位机构数量减少一半，从而降低经济成本。
(5)设置连接套筒，克服现有复位筋材料在滑轮处无法弯曲的不足。现有的复位筋材料多采用纤维增强复合材料，其弯曲性能差，无法在滑轮处弯折。在滑轮周围的弯曲段采用高强钢绞线，在直线段采用纤维增强复合材料或其它材料，弯曲段与直线段复位筋通过连接套筒连接。
附图说明
图1是本发明的整体结构示意图。
图2是本发明中半部分立体结构示意图。
图3是本发明中复位耗能机构结构示意图。
图4是本发明中限力耗能机构结构示意图。
图5是本发明中滑轮部位的连接结构示意图。
图6是本发明中摩擦板、钢垫板的结构示意图。
图7是本发明中连接板的结构示意图。
图8是本发明中第二滑动板、第四滑动板、第五滑动板的结构示意图。
图9是本发明在建筑物中的安装结构示意图。
图中：滑轮1、连接套筒2、圆孔3、预应力复位筋4、锚具5、限位板6、滑动框7、底座8、加劲肋9、高强钢索10、复位耗能摩擦板11、复位耗能钢垫板12、连接板13、限力耗能钢垫板14、第一滑动板15、第二滑动板16、第三滑动板17、第四滑动板18、第五滑动板19、槽孔20、高强钢绞线21、限力耗能摩擦板22、外部滑轮23、建筑结构24、下部结构25、受力拉索26、非受力拉索27、滑轮支架28、复位机构A、复位耗能机构B、限力耗能机构C。
具体实施方式
下面结合附图对本发明作进一步说明：
如图1-2所示，一种新型减震自复位耗能拉索支撑装置，由复位机构A、复位耗能机构B、限力耗能机构C、高强钢索10和底座8组成；复位机构A跨设在两底座8的中间，复位耗能机构B设置在复位机构A的两侧，限力耗能机构C连接设置在复位耗能机构B的外侧，高强钢索10连接在限力耗能机构C的外侧；复位机构A由滑轮支架28、滑轮1、连接套筒2、预应力复位筋4和高强钢绞线21连接构成；滑轮1通过滑轮支架28固定在底座8上，预应力复位筋4与高强钢绞线21通过连接套筒2连接后缠绕设置在两组滑轮1之间，高强钢绞线21设置在每个滑轮1的弯曲段处。
如图3所示，一种新型减震自复位耗能拉索支撑装置，复位耗能机构B由加劲肋9、限位板6、滑动框7、复位耗能摩擦板11、复位耗能钢垫板12和连接板13构成；限位板6与底座8焊接固定，加劲肋9固定设置在限位板6的一侧，滑动框7滑动设置在限位板6的另一侧；滑动框7由第一滑动板15、第二滑动 板16、第三滑动板17和第四滑动板18相互焊接成“口”字形结构，滑轮1上的高强钢绞线21穿过限位板6与第一滑动板15连接固定，第二滑动板16和第四滑动板18的内外侧面均设有复位耗能摩擦板11和复位耗能钢垫板12，连接板13横截面成“L”形，设置在复位耗能钢垫板12的外侧，连接板的两肢板上设若干圆孔3，与圆孔3对应位置的第二滑动板16和第四滑动板18上设有若干个槽孔20，复位耗能摩擦板11、复位耗能钢垫板12上设有与肢板对应的圆孔3，通过旋紧穿过圆孔3和槽孔20的螺栓在复位耗能摩擦板11与第二滑动板16、第四滑动板18之间建立预压力，连接板13通过螺栓固定在底座8上。
如图4所示，一种新型减震自复位耗能拉索支撑装置，限力耗能机构C由第五滑动板19、限力耗能摩擦板22和限力耗能钢垫板14构成；第五滑动板19与第三滑动板17焊接连接成“T”字形结构，限力耗能摩擦板22设置在第五滑动板19的两侧，限力耗能钢垫板14成“]”形结构，限力耗能钢垫板14卡接设置在限力耗能摩擦板22的外侧，第五滑动板19上设有槽孔20，限力耗能摩擦板22和限力耗能钢垫板14上均设有圆孔3，螺栓穿过槽孔20和圆孔3后旋紧，在限力耗能摩擦板22和第五滑动板19间建立预压力，高强钢索10通过锚具5与限力耗能钢垫板14连接固定。
如图1-8所示，一种新型减震自复位耗能拉索支撑装置，滑轮1的数量为4个，每侧2个成对称分布，同侧的滑轮1成上下式分布，每个滑轮1的槽宽大于两倍的预应力复位筋4直径；复位耗能摩擦板11、复位耗能钢垫板12、连接板13与滑动板的高度均相同，复位耗能摩擦板11、复位耗能钢垫板12、连接板13上的圆孔与滑动板上的槽孔的数量相同且中心高相等；第一滑动板15、第二滑动板16、第三滑动板17和第四滑动板18的高度相等，第二滑动板16和第四滑动板18的长度大于复位耗能摩擦板11的长度；第五滑动板19、限力耗能 摩擦板22和限力耗能钢垫板14高度相等，第五滑动板19上的槽孔20与限力耗能摩擦板22、限力耗能钢垫板14上的圆孔等高，限力耗能钢垫板14上设有通孔，高强钢索10穿过通孔通过锚具5固定在限力耗能钢垫板14的内侧。
如图1-8所示，一种新型减震自复位耗能拉索支撑装置的工作原理如下：滑轮1固定在底座8上，底座8上设置若干个圆孔3，通过螺栓与结构主体固定。预应力复位筋4采用具有高抗拉强度和低弹性模量特点的材料，其一端通过锚具5锚固一端滑动框7上，另一端绕过滑轮1后，使用后张法建立预应力，通过锚具5与另一端滑动框7连接。其中预应力复位筋4在滑轮1处采用连接套筒2，限位板6用来限制滑动框7向中间运动，限位板6通过焊接固定在底座8上，设置若干块加劲肋9加强限位板6的刚度。通过螺栓，将第二滑动板16、第四滑动板18、复位耗能摩擦板11、复位耗能钢垫板12和连接板13相连，连接板13和底座8相连，第五滑动板19、限力耗能摩擦板22和限力耗能钢垫板14相连。通过旋紧螺栓，分别在第二滑动板14、第四滑动板16与复位耗能摩擦板11之间和第五滑动板19与限力耗能摩擦板22之间建立预压力。高强钢索10的一端通过锚具5与限力耗能钢垫板14锚固，另一端与结构主体结构连接。
如图9所示，一种新型减震自复位耗能拉索支撑装置在建筑结构中的工作过程如下：将整个装置平行设置在建筑结构梁上，在靠近梁柱节点位置的框架梁上安装滑轮引导高强钢索走向，交叉连接至建筑结构的两侧顶部。在图示方向荷载F的作用下(实线表示受力钢索，虚线表示非受力钢索)，受力拉索被拉伸，带动复位耗能机构和限力耗能机构先后工作。
本发明通过设置滑轮组可以将预应力复位筋的长度增加两倍，从而当预应力复位筋发生同等长度的变形时，应变率减小为不设置滑轮时的三分之一。这样一方面可以将自复位的变形能力提高两倍；另一方面还可以降低预应力复位筋 材料的弹性伸长率的要求，从而进一步拓宽了材料的选择范围。限位板用来限制预应力复位筋的端头向中间运动，第二滑动板、第四滑动板、第五滑动板上开设一定数量的槽孔，可以沿着槽孔长度方向发生滑动，通过第二滑动板和第四滑动板与复位耗能摩擦板的滑动摩擦耗散输入的地震能量。限力耗能机构通过第五滑动板与限力耗能摩擦板的相对滑动，遏止支撑轴力增长，保护主体结构并进一步耗散地震能量。
在小震条件下，高强钢索的拉力不足以克服复位耗能摩擦板提供的摩擦力和预应力复位筋的预拉力之和，因此高强钢索与滑动框相连的一端相当于固定端。这种条件下，只有高强钢索发挥支撑作用。
在中-大震条件下，高强钢索的拉力克服复位耗能摩擦板提供的摩擦力和预应力复位筋的预拉力之和，因此高强钢索将拉动滑动框运动。这时高强钢索和预应力复位筋为串联关系，自复位耗能拉索支撑的整体刚度相对于高强钢索的刚度显著下降，从而抑制地震力的快速增长，从而实现对主体结构的保护作用。与此同时，利用滑动框和复位耗能摩擦板之间的相对滑动耗散地震能量。地震后，预应力复位筋的拉力始终大于最大静摩擦力，因此拉动滑动框向初始位置运动，直至接触限位板静止，实现自复位功能。
在遭受超过设防烈度地震条件下，高强钢索拉力进一步增加直至使第五滑动板与限力耗能摩擦板发生相对滑动。此时限力耗能机构开始工作，遏止支撑轴力增加，同时进一步耗散地震能量，保护主体结构。

Claims (5)

  1. 一种新型减震自复位耗能拉索支撑装置，其特征在于：所述装置是由复位机构(A)、复位耗能机构(B)、限力耗能机构(C)、高强钢索(10)和底座(8)组成；所述复位机构(A)设置在两底座(8)的中间，所述复位耗能机构(B)设置在所述复位机构(A)的两侧，所述限力耗能机构(C)连接设置在所述复位耗能机构(B)的外侧，所述高强钢索(10)与所述限力耗能机构(C)外侧连接；
    所述复位机构(A)由滑轮支架(28)、滑轮(1)、连接套筒(2)、预应力复位筋(4)和高强钢绞线(21)连接构成；所述滑轮(1)通过所述滑轮支架(28)固定在所述底座(8)上，所述预应力复位筋(4)与高强钢绞线(21)通过所述连接套筒(2)连接后缠绕设置在所述两组滑轮(1)之间，所述高强钢绞线(21)设置在每个滑轮(1)的弯曲段处；
    所述复位耗能机构(B)由加劲肋(9)、限位板(6)、滑动框(7)、复位耗能摩擦板(11)、复位耗能钢垫板(12)和连接板(13)构成；所述限位板(6)与所述底座(8)焊接固定，所述加劲肋(9)固定设置在所述限位板(6)的一侧，所述滑动框(7)滑动设置在所述限位板(6)的另一侧；所述滑动框(7)由第一滑动板(15)、第二滑动板(16)、第三滑动板(17)和第四滑动板(18)相互焊接成“口”字形结构，所述滑轮(1)上的高强钢绞线(21)穿过限位板(6)与第一滑动板(15)连接固定，所述第二滑动板(16)和第四滑动板(18)的内外侧面均设有所述复位耗能摩擦板(11)和复位耗能钢垫板(12)，所述连接板(13)横截面成“L”形，设置在所述复位耗能钢垫板(12)的外侧，所述连接板(13)的两肢板上设有若干圆孔(3)，与圆孔(3)对应位置的所述第二滑动板(16)和第四滑动板(18)上设槽孔(20)，所述复位耗能摩擦板(11)、复位耗能钢垫板(12)上设有与肢板对应的圆孔(3)，通过旋紧穿过圆孔(3)和槽孔(20)的螺栓在复位耗能摩擦板(11)与第二滑动板(16)、第四滑动板(18)之间建立预压力，所述连接板(13)通过螺栓固定在底座(8)上；
    所述限力耗能机构(C)由第五滑动板(19)、限力耗能摩擦板(22)和限力耗能钢垫板(14)构成；所述第五滑动板(19)与所述第三滑动板(17)焊接成“T”字形结构，所述限力耗能摩擦板(22)设置在所述第五滑动板(19)的两侧，所述限力耗能钢垫板(14)成“]”形结构，所述限力耗能钢垫板(14)卡接设置在所述限力耗能摩擦板(22)的外侧，所述第五滑动板(19)上设有槽孔(20)，所述限力耗能摩擦板(22)和限力耗能钢垫板(14)上均设有圆孔(3)，螺栓穿过槽孔(20)和圆孔(3)后旋紧，在限力耗能摩擦板(22)和第五滑动板(19)间建立预压力；所述高强钢索(10)通过锚具(5)与限力耗能钢垫板(14)连接固定。
  2. 根据权利要求1所述的一种新型减震自复位耗能拉索支撑装置，其特征在于：所述滑轮(1)的数量为4个，每侧2个呈对称分布，同侧的滑轮(1)呈上下式分布，每个滑轮(1)的槽宽大于两倍的预应力复位筋(4)直径。
  3. 根据权利要求1所述的一种新型减震自复位耗能拉索支撑装置，其特征在于：所述复位耗能摩擦板(11)、复位耗能钢垫板(12)、连接板(13)与滑动板的高度均相同，复位耗能摩擦板(11)、复位耗能钢垫板(12)、连接板(13)上的圆孔与滑动板上的槽孔的数量相同且中心高相等。
  4. 根据权利要求1所述的一种新型减震自复位耗能拉索支撑装置，其特征在于：所述第一滑动板(15)、第二滑动板(16)、第三滑动板(17)和第四滑动板(18)的高度相等，第二滑动板(16)和第四滑动板(18)的长度大于复位耗能摩擦板(11)的长度。
  5. 根据权利要求1所述的一种新型减震自复位耗能拉索支撑装置，其特征在于：所述第五滑动板(19)、限力耗能摩擦板(22)和限力耗能钢垫板(14)高度相等，第五滑动板(19)上的槽孔(20)与限力耗能摩擦板(22)、限力耗能钢垫板(14)上的圆孔等高，限力耗能钢垫板(14)上设有通孔，高强钢索(10)穿过通孔 通过锚具(5)固定在限力耗能钢垫板(14)的内侧。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111155650A (zh) * 2020-01-19 2020-05-15 华侨大学 一种功能可恢复钢筋混凝土强脊框架结构
CN111238938A (zh) * 2020-03-09 2020-06-05 华侨大学 一种侧向限位加载装置及其使用方法
CN111335465A (zh) * 2020-03-20 2020-06-26 哈尔滨工业大学 装配式混凝土梁柱可转动自复位节点连接结构及拼装方法
CN112030718A (zh) * 2020-08-06 2020-12-04 同济大学 一种预制拼装桥墩与承台快速连接的多级摇摆系统
CN113175417A (zh) * 2021-04-15 2021-07-27 重庆大学 一种可恢复耗能能力增强的风电机组格构式塔架
CN113982343A (zh) * 2021-08-13 2022-01-28 重庆大学 一种新型装配式带sma自复位屈曲约束支撑装置
CN114922055A (zh) * 2022-05-19 2022-08-19 浙大城市学院 一种基于榫卯约束的限位耗能阻尼装置及施工安装方法
CN112030718B (zh) * 2020-08-06 2024-05-31 同济大学 一种预制拼装桥墩与承台快速连接的多级摇摆系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090133338A1 (en) * 2005-05-24 2009-05-28 Geoffrey John Thompson Energy-absorbing and force-limiting friction coupling
CN105155709A (zh) * 2015-08-06 2015-12-16 北京建筑大学 一种免修复自复位摩擦耗能支撑
CN105421608A (zh) * 2015-10-26 2016-03-23 南京工业大学 自复位耗能拉索支撑
CN206090914U (zh) * 2016-09-18 2017-04-12 西京学院 一种混合控制自复位阻尼器
CN107542177A (zh) * 2017-09-21 2018-01-05 长安大学 一种自复位耗能器
CN108532836A (zh) * 2018-05-22 2018-09-14 扬州大学 一种新型减震自复位耗能拉索支撑装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090133338A1 (en) * 2005-05-24 2009-05-28 Geoffrey John Thompson Energy-absorbing and force-limiting friction coupling
CN105155709A (zh) * 2015-08-06 2015-12-16 北京建筑大学 一种免修复自复位摩擦耗能支撑
CN105421608A (zh) * 2015-10-26 2016-03-23 南京工业大学 自复位耗能拉索支撑
CN206090914U (zh) * 2016-09-18 2017-04-12 西京学院 一种混合控制自复位阻尼器
CN107542177A (zh) * 2017-09-21 2018-01-05 长安大学 一种自复位耗能器
CN108532836A (zh) * 2018-05-22 2018-09-14 扬州大学 一种新型减震自复位耗能拉索支撑装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111155650A (zh) * 2020-01-19 2020-05-15 华侨大学 一种功能可恢复钢筋混凝土强脊框架结构
CN111238938A (zh) * 2020-03-09 2020-06-05 华侨大学 一种侧向限位加载装置及其使用方法
CN111335465A (zh) * 2020-03-20 2020-06-26 哈尔滨工业大学 装配式混凝土梁柱可转动自复位节点连接结构及拼装方法
CN112030718A (zh) * 2020-08-06 2020-12-04 同济大学 一种预制拼装桥墩与承台快速连接的多级摇摆系统
CN112030718B (zh) * 2020-08-06 2024-05-31 同济大学 一种预制拼装桥墩与承台快速连接的多级摇摆系统
CN113175417A (zh) * 2021-04-15 2021-07-27 重庆大学 一种可恢复耗能能力增强的风电机组格构式塔架
CN113175417B (zh) * 2021-04-15 2023-03-21 重庆大学 一种可恢复耗能能力增强的风电机组格构式塔架
CN113982343A (zh) * 2021-08-13 2022-01-28 重庆大学 一种新型装配式带sma自复位屈曲约束支撑装置
CN113982343B (zh) * 2021-08-13 2024-05-24 重庆大学 一种新型装配式带sma自复位屈曲约束支撑装置
CN114922055A (zh) * 2022-05-19 2022-08-19 浙大城市学院 一种基于榫卯约束的限位耗能阻尼装置及施工安装方法
CN114922055B (zh) * 2022-05-19 2023-08-22 浙大城市学院 一种基于榫卯约束的限位耗能阻尼装置及施工安装方法

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