EP3643855B1 - Variable-stiffness energy dissipation member and method for installing same - Google Patents

Variable-stiffness energy dissipation member and method for installing same Download PDF

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Publication number
EP3643855B1
EP3643855B1 EP19794859.9A EP19794859A EP3643855B1 EP 3643855 B1 EP3643855 B1 EP 3643855B1 EP 19794859 A EP19794859 A EP 19794859A EP 3643855 B1 EP3643855 B1 EP 3643855B1
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EP
European Patent Office
Prior art keywords
plates
zone
energy
steel plates
steel
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EP19794859.9A
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German (de)
English (en)
French (fr)
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EP3643855A1 (en
EP3643855A4 (en
Inventor
Limeng ZHU
Chunwei Zhang
Li Sun
Lingmao KONG
Jie Zheng
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    • 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
    • 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
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members

Definitions

  • This application relates to seismic resistances of buildings, and more particularly to assembled energy dissipators with variable stiffness for lateral connection of shear walls.
  • an energy-dissipating and loading device is considered to be added to a deformation focus of the shear wall, but large residential deformation and stress will be caused when the lateral connection of the energy-dissipating device and two adjacent shear walls is in welded manner.
  • the existing energy-dissipating shear dampers are mainly single-type shear yielding dampers, in which the stiffness of the shear wall stops enhancing after the damper yields, so the reduced bearing capacity and stiffness of the shear wall cannot be enhanced again.
  • the single-type yielding shear damper cannot combine the functions of dissipating energy, loading, enhancing stiffness and separating the functions of dissipating energy and loading.
  • Korea patent publication KR 20180070998 A discloses a damper for a structure to dissipate vibration energy by vibration or shock due to an earthquake acting to various structures.
  • a damping plate is combined to an upper mounting board and a lower mounting board to connect them with each other.
  • the damping plate includes a plurality of connection dampers for connecting an upper connection part and a lower connection part with each other, and horizontal brace supporters protruding from both ends of one among the upper and lower connection parts.
  • Cipheral patent publication CN 107035018A discloses a coupling beam soft steel damper comprising energy dissipation soft steel plates, constraint steel plates, rigid end plates, left angle steel, right angle steel, high-strength bolts, constraint bolts and limiting bolts.
  • Each set of energy dissipation soft steel plates is clamped between two constraint steel plates, the rigid end plates are clamped between the two sets of energy dissipation soft steel plates, the left ends of all the energy dissipation soft steel plates are clamped between the two pieces of left angle steel, and the right ends of all the energy dissipation soft steel plates are clamped between the two pieces of right angle steel.
  • the present invention provides an assembled energy dissipator with variable stiffness for lateral connection of shear walls, which has a controllable threshold and can realize a second enhancement of stiffness, achieving a reliable lateral connection of adjacent shear walls via bolts, in which the welding is avoided. Moreover, the assembled energy dissipator is easy to be assembled or disassembled.
  • an assembled energy dissipator with variable stiffness for lateral connection of shear walls comprising an energy-dissipating zone, a stiffness enhancing zone, and end plates for connecting shear walls.
  • the shear walls are connected by the end plates via a high-strength binding stay bolt.
  • the stiffness enhancing zone is independent from the energy-dissipating zone and comprises a plurality of steel plates arranged in a same plane and buckling-restrained plates which are respectively arranged on two sides of adjacent steel plates and are connected to the steel plates via bolts. A gap is provided between the adjacent steel plates.
  • the stiffness enhancing zone is provided with a deformation threshold control device.
  • the bolts of the stiffness enhancing zone may be high-strength bolts.
  • the energy-dissipating zone may adopt mild steel plates with a low yield point, and the enhancing zone may adopt high-strength steel plates with an ordinary or high yield point.
  • Steel plates of the energy-dissipating zone may be made of mild steel plates or stainless steels, and steel plates of the enhancing zone may be made of ordinary or high-strength steel plates.
  • the steel plates of the energy-dissipating zone may be arranged at two outer sides of the steel plates of the enhancing zone.
  • Bolt connection plates may be connected to the steel plates of the energy-dissipating zone via bolts, and may be welded to the end plates.
  • the steel plates of the stiffness enhancing zone may comprise an upper steel plate and a lower steel plate.
  • the bolt connection plates may be located on inner and outer sides of the steel plates of the energy-dissipating zone.
  • the bolt connection plates on the inner side of the steel plates are welded to the end plates.
  • the steel plates of an outer side of the energy-dissipating zone may not be welded with the end plates but rather be directly fixed with the bolt connection plates via bolts.
  • the deformation threshold control device may be realized by means of bolt holes provided on the steel plates of the stiffness enhancing zone and connecting with the buckling-restrained plates.
  • the bolt holes on the adjacent steel plates may be different in diameter, and a bolt hole on a side of the steel plates of the stiffness enhancing zone may be larger than a bolt rod in diameter.
  • a bolt hole on one of the steel plates of the stiffness enhancing zone may fit a rod portion of the bolt, and a diameter of a bolt hole on the other one of the steel plates of the stiffness enhancing zone may be 2-3 mm larger than the diameter of the rod portion of the bolt.
  • the end plates may be provided with slide rails fitting the steel plates of the stiffness enhancing zone, whereby the slide rails are configured to avoid out-of-plane buckling of the steel plates.
  • the adjacent steel plates of the stiffness enhancing zone may be respectively welded to the end plates, and gaps provided on sides of the end plates opposite to weling sides.
  • Slide rails may be arranged on the sides of the end plates having the gaps.
  • Six steel plates may be arranged in parallel in the energy-dissipating zone.
  • the six steel plates may be evenly spaced, and preferably, a spacing is 15-35 mm.
  • the bolt connection plates of an outer side of the energy-dissipating zone may not be welded to the end plates, and a gap may be provided between the bolt connection plates, where the gap may be equal to the gap between the steel plates of the energy-dissipating zone.
  • the steel plates of the stiffness enhancing zone may be connected to the buckling-restrained plates via high-strength bolts.
  • a mounting method of the assembled energy dissipator with variant stiffness for lateral connection of shear walls comprising:
  • the present invention has the following advantages.
  • an assembled energy dissipator with variant stiffness for lateral connection of shear walls comprising a stiffness enhancing zone 15, an energy-dissipating zone 14 and end plates 2.
  • the energy-dissipating zone comprises mild steel plates of the energy-dissipating zone 5, bolts 6 and bolt connection plates 4.
  • the stiffness enhancing zone comprises an upper steel plate 7 and a lower steel plate 8, bolt holes of the upper steel plate 11, bolt holes of the lower steel plate 12, two buckling-restrained plates 9, high-strength bolts 10 and slide rails 13.
  • the energy-dissipating zone 14 is provided outside the damper, and the stiffness enhancing zone 15 is provided inside the damper.
  • the bolt connection plates on an inner side of the energy-dissipating zone 14 have the same height with the end plates, and are arranged on two sides of the steel plates of the energy-dissipating zone and are welded to the end plates.
  • a gap is arranged between the bolt connection plates on an outer side of the energy-dissipating zone which have the same height and quantity with the steel plates of the energy-dissipating zone.
  • the bolt connection plates on the outer side of the energy-dissipating zone are arranged on two ends of the steel plates and are not welded to the end plates.
  • the steel plates of the energy-dissipating zone 5 are connected to the bolt connection plate via bolts 6.
  • the bolted connection effectively avoids local stress concentration and residual deformation, and realizes the detachable replacement of the mild steel of the energy-dissipating zone.
  • the steel plates of the stiffness enhancing zone are connected with the pre and post buckling-restrained plates via high-strength bolts.
  • a side of the upper steel plate is welded to a left or right end plate, and a side of the lower steel plate is welded to a right or left end plate.
  • a gap is respectively arranged between the other side of the upper steel plate and the left or right end plate and between the other side of the lower steel plate and the right or left end plate.
  • the slide rails 13 capable of restraining the bucking of the steel plates are provided at front and back sides of the steel plates of the stiffness enhancing zone.
  • the bolt connection plates of the energy-dissipating zone are arranged at right and left ends of the mild steel plate of the energy-dissipating zone.
  • One bolt connection plate having the same height with the end plates is welded to the end plates, and the other bolt connection plate is not welded to the end plates, and gaps are provided on welding sides of the end plates.
  • the gaps have the same length with the gap between the mild plates, so that a sufficient space is provided to allow the deformation of the steel plates of the energy-dissipating zone to dissipate the seismic energy and to disassemble the mild plates.
  • the mild steel plates are replaceable, which is low-carbon, energy-saving, green, ecological and sustainable.
  • the steel plates of the stiffness enhancing zone comprises an upper steel plate 7 and a lower steel plate 8.
  • the upper and lower steel plates connect with the buckling-restrained plates in parallel via the high-strength bolts.
  • the threshold control device is realized by means of bolt holes (bolt holes of the upper steel plate 11 and the lower steel plate 12).
  • a diameter of the bolt holes of the upper or lower steel plate is 2-3 mm larger than a diameter of the bolt holes of the lower or upper steel plate, so the mild steel plates of the energy-dissipating zone firstly dissipate energy, and the stiffness enhancing zone enters the secondary stiffness enhancing stage after the mild steel plate yields.
  • the slide rails are respectively arranged at the sides of the steel plates having the gap.
  • the slide rails are capable of effectively enhancing the planar constraint of the upper and lower steel plates, so the secondary stiffness enhancing is fully achieved by the upper and lower steel plates.
  • the energy dissipating and the stiffness enhancing of the energy-dissipating damper with variant stiffness for lateral connection are designed to be carried out in stages.
  • the steel plates of the energy-dissipating zone can be used for dissipating energy and providing an initial stiffness, and are easy to be disassembled and replaced.
  • a deformation threshold is set for the steel plates of the stiffness enhancing zone. When a deformation is beyond the deformation threshold, two adjacent shear walls enter a second stage in which they work together, and are capable of enhancing the lateral bearing capacity when it reduces after reaching a peak value.
  • This embodiment provides a mounting method of the energy dissipator with variant stiffness for lateral connection of shear walls, comprising the following steps:
  • Bolt holes with desired sizes are pre-processed on the steel plates of the energy-dissipating zone, the stiffness enhancing zone, the buckling-restrained plates and the bolt connection plates of the energy-dissipating zone.
  • Bolt connection plates on an inner side of the energy-dissipating zone are welded to the end plates; and the steel plates of the stiffness enhancing zone are respectively welded to the end plates.
  • the steel plates of the stiffness enhancing zone are connected to the buckling-restrained plates which are arranged in parallel on front and back sides of stiffness enhancing zone via high-strength bolts; and the steel plates of the energy-dissipating zone are connected to the bolt connection plates on the outer side of the energy-dissipating zone via bolts.
EP19794859.9A 2018-07-24 2019-07-02 Variable-stiffness energy dissipation member and method for installing same Active EP3643855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810818668.5A CN108952283B (zh) 2018-07-24 2018-07-24 装配式变刚度横向连接耗能件及安装方法
PCT/CN2019/094446 WO2020019948A1 (zh) 2018-07-24 2019-07-02 装配式变刚度横向连接耗能件及安装方法

Publications (3)

Publication Number Publication Date
EP3643855A1 EP3643855A1 (en) 2020-04-29
EP3643855A4 EP3643855A4 (en) 2020-07-01
EP3643855B1 true EP3643855B1 (en) 2021-06-16

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EP19794859.9A Active EP3643855B1 (en) 2018-07-24 2019-07-02 Variable-stiffness energy dissipation member and method for installing same

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EP (1) EP3643855B1 (zh)
CN (1) CN108952283B (zh)
AU (1) AU2019261749B2 (zh)
WO (1) WO2020019948A1 (zh)

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CN108952283B (zh) * 2018-07-24 2021-03-23 青岛理工大学 装配式变刚度横向连接耗能件及安装方法
CN110093993A (zh) * 2019-05-23 2019-08-06 青岛理工大学 带套筒螺栓的装配式自复位变刚度耗能连接结构及其安装方法
CN110258799A (zh) * 2019-07-19 2019-09-20 青岛理工大学 变刚度耗能型装配式横向连接结构
CN111783206B (zh) * 2020-07-01 2023-08-15 杭州铁木辛柯建筑结构设计事务所有限公司 基于加劲肋门槛刚度的钢板剪力墙的失稳模式判别方法
CN112411806A (zh) * 2020-11-26 2021-02-26 西安建筑科技大学 一种带有层间耗能支撑的可更换波纹钢板阻尼墙结构
CN112681552B (zh) * 2020-12-24 2022-09-30 青岛理工大学 一种二阶增强型连梁式金属阻尼减震系统
CN113338478B (zh) * 2021-06-23 2022-11-01 重庆大学 一种用于快速建造的装配式建筑墙板
CN114293676B (zh) * 2021-11-30 2024-02-09 海南柏森建筑设计有限公司 一种预制装配式消能减震剪力墙结构及其设计方法
CN115288307B (zh) * 2022-05-30 2023-12-15 华能伊敏煤电有限责任公司红花尔基水电分公司 一种便于定位止水带
CN115387508B (zh) * 2022-08-24 2024-04-12 安徽省建筑科学研究设计院 一种钢板剪力墙及其施工方法

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CN102535669A (zh) * 2012-01-13 2012-07-04 大连理工大学 一种应用于剪力墙连梁的摩擦-金属屈服耗能联控减震装置及其控制方法
CN203373871U (zh) * 2013-04-11 2014-01-01 欧进萍 一种装配式粘弹性阻尼墙体
JP6185281B2 (ja) * 2013-05-08 2017-08-23 日本ピラー工業株式会社 滑り支承装置
KR101457059B1 (ko) * 2014-04-21 2014-11-04 주식회사 제일에프앤에쓰 점탄성체를 이용한 전단벽체의 제진공법
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CN107035018B (zh) * 2017-06-14 2023-09-22 河北工业大学 一种连梁软钢阻尼器及施工过程
CN207032577U (zh) * 2017-07-05 2018-02-23 大连理工大学 一种装配式剪力墙消能减震水平连接装置
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Also Published As

Publication number Publication date
AU2019261749B2 (en) 2021-06-17
EP3643855A1 (en) 2020-04-29
CN108952283B (zh) 2021-03-23
AU2019261749A1 (en) 2020-02-13
EP3643855A4 (en) 2020-07-01
WO2020019948A1 (zh) 2020-01-30
CN108952283A (zh) 2018-12-07

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