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CN118621923A - A modular SMA composite viscoelastic damper - Google Patents

A modular SMA composite viscoelastic damper Download PDF

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Publication number
CN118621923A
CN118621923A CN202410901165.XA CN202410901165A CN118621923A CN 118621923 A CN118621923 A CN 118621923A CN 202410901165 A CN202410901165 A CN 202410901165A CN 118621923 A CN118621923 A CN 118621923A
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steel plate
rubber
plate
connecting end
end plate
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宋江良
于博浪
李冰心
孙杰
牟志奇
高攀
张立润
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Jilin Jianzhu University
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Jilin Jianzhu University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

一种模块化SMA复合黏弹性阻尼器,包括上连接端板和下连接端板,上连接端板和下连接端板上下相对设置,上连接端板和下连接端板之间设置中部波形钢板,位于中部波形钢板两侧对称布置尺寸相同的橡胶钢板叠合层;在中部波形钢板、橡胶钢板叠合层中部区域开有四个直径相同梅花形孔道,孔道呈菱形分布于中部区域,在孔道内放置四根形状记忆合金棒;下连接端板包括下前连接端板、下后连接端板,所述下前连接端板上方设置前限位板,下后连接端板上方设置后限位板,所述前限位板、后限位板分别位于两侧橡胶钢板叠合层的外表面;橡胶钢板叠合层顶端低于中部波形钢板上端,不与上连接端板底面接触。本发明震后具有一定的自复位能力,损坏容易更换。

A modular SMA composite viscoelastic damper comprises an upper connecting end plate and a lower connecting end plate, the upper connecting end plate and the lower connecting end plate are arranged relatively up and down, a middle corrugated steel plate is arranged between the upper connecting end plate and the lower connecting end plate, and rubber steel plate laminated layers of the same size are symmetrically arranged on both sides of the middle corrugated steel plate; four plum blossom-shaped channels with the same diameter are opened in the middle area of the middle corrugated steel plate and the rubber steel plate laminated layer, and the channels are distributed in the middle area in a diamond shape, and four shape memory alloy rods are placed in the channels; the lower connecting end plate comprises a lower front connecting end plate and a lower rear connecting end plate, a front limit plate is arranged above the lower front connecting end plate, and a rear limit plate is arranged above the lower rear connecting end plate, and the front limit plate and the rear limit plate are respectively located on the outer surfaces of the rubber steel plate laminated layers on both sides; the top of the rubber steel plate laminated layer is lower than the upper end of the middle corrugated steel plate and does not contact the bottom surface of the upper connecting end plate. The present invention has a certain self-reset ability after an earthquake, and is easy to replace if damaged.

Description

一种模块化SMA复合黏弹性阻尼器A modular SMA composite viscoelastic damper

技术领域Technical Field

本发明属于抗震与减震中阻尼器技术领域,特别涉及一种模块化SMA复合黏弹性阻尼器。The invention belongs to the technical field of dampers in earthquake resistance and shock absorption, and particularly relates to a modular SMA composite viscoelastic damper.

背景技术Background Art

模块化SMA复合黏弹性阻尼器是利用橡胶剪切拉压变形、波形钢板和形状记忆合金棒屈服变形耗能的减震装置,在多遇地震作用下由橡胶剪切(拉压)变形,波形钢板与形状记忆合金处于弹性阶段不参与耗能;在罕遇地震作用下橡胶剪切(拉压)变形、形状记忆合金和波形钢板弹塑性变形,橡胶、形状记忆合金和波形钢板三者共同工作具有良好的滞回特性,并且在变形过程中吸收和耗散地震能量。The modular SMA composite viscoelastic damper is a shock absorbing device that utilizes the shear, tensile and compressive deformation of rubber and the yield deformation of corrugated steel plates and shape memory alloy rods to dissipate energy. Under the action of frequent earthquakes, the rubber is deformed by shear (tensile and compressive), and the corrugated steel plates and shape memory alloys are in the elastic stage and do not participate in energy dissipation. Under the action of rare earthquakes, the rubber is deformed by shear (tensile and compressive), and the shape memory alloys and corrugated steel plates are elastic-plastic. The rubber, shape memory alloy and corrugated steel plates work together with good hysteresis characteristics, and absorb and dissipate seismic energy during the deformation process.

目前,在建筑结构中广泛应用的位移相关型及速度相关型耗能减震阻尼器包括:金属阻尼器和黏弹性阻尼器。其中,金属阻尼器受材料屈服强度及构造形式等因素的影响,在多遇地震下一般不易发生屈服耗能,而在罕遇地震作用下又常常因发生较大的塑性破坏,从而导致不可重复使用。黏弹性阻尼器则由于初始刚度较小,在中震、大震作用下耗能能力有限,且易受多种因素影响,导致在地震作用下其力学性能易急剧下降;对于现有自复位黏弹性阻尼器多采用形状记忆合金丝束,由于其形状记忆合金丝束的截面面积的限制,以及安装精度较高且组装困难,这导致其自复位效果能力有限,使在实际工程应用中阻尼器的自复位效果不明显。At present, the displacement-related and velocity-related energy-absorbing dampers widely used in building structures include metal dampers and viscoelastic dampers. Among them, metal dampers are affected by factors such as material yield strength and structural form. They are generally not prone to yield energy consumption under frequent earthquakes, and often suffer large plastic damage under rare earthquakes, resulting in non-reusability. Viscoelastic dampers have limited energy dissipation capacity under medium and large earthquakes due to their low initial stiffness, and are easily affected by a variety of factors, resulting in a sharp drop in their mechanical properties under earthquakes; the existing self-resetting viscoelastic dampers mostly use shape memory alloy wire bundles. Due to the limitation of the cross-sectional area of the shape memory alloy wire bundles, as well as the high installation precision and difficult assembly, their self-resetting effect is limited, making the self-resetting effect of the damper not obvious in actual engineering applications.

发明内容Summary of the invention

为了克服上述现有技术的不足,本发明的目的在于提供一种模块化SMA复合黏弹性阻尼器,该SMA复合黏弹性阻尼器安装在结构中,变形由耗能构件承担,震后具有一定的自复位能力,损坏容易更换。In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a modular SMA composite viscoelastic damper, which is installed in a structure, the deformation of which is borne by energy-absorbing components, has a certain self-resetting ability after an earthquake, and is easy to replace if damaged.

为了实现上述目的,本发明采用的技术方案是:In order to achieve the above object, the technical solution adopted by the present invention is:

一种模块化SMA复合黏弹性阻尼器,包括水平设置的上连接端板和下连接端板,上连接端板和下连接端板上下相对设置,上连接端板(1)和下连接端板之间设置竖直中部波形钢板,位于中部波形钢板两侧对称布置尺寸相同的橡胶钢板叠合层;A modular SMA composite viscoelastic damper comprises an upper connecting end plate and a lower connecting end plate arranged horizontally, the upper connecting end plate and the lower connecting end plate being arranged vertically opposite to each other, a vertical middle corrugated steel plate being arranged between the upper connecting end plate (1) and the lower connecting end plate, and rubber steel plate laminated layers of the same size being symmetrically arranged on both sides of the middle corrugated steel plate;

在中部波形钢板、橡胶钢板叠合层中部区域开有四个直径相同梅花形孔道,孔道呈菱形分布于中部区域,在孔道内放置四根形状记忆合金棒;Four plum blossom-shaped holes with the same diameter are opened in the middle area of the middle corrugated steel plate and rubber steel plate laminated layer. The holes are distributed in the middle area in a diamond shape, and four shape memory alloy rods are placed in the holes.

下连接端板包括下前连接端板、下后连接端板,下前连接端板、下后连接端板拼合在一起;The lower connecting end plate comprises a lower front connecting end plate and a lower rear connecting end plate, and the lower front connecting end plate and the lower rear connecting end plate are spliced together;

所述下前连接端板上方竖直设置前限位板,下后连接端板上方竖直设置后限位板,所述前限位板、后限位板分别位于两侧橡胶钢板叠合层的外表面;A front limit plate is vertically arranged above the lower front connection end plate, and a rear limit plate is vertically arranged above the lower rear connection end plate, and the front limit plate and the rear limit plate are respectively located on the outer surfaces of the laminated layers of the rubber steel plates on both sides;

橡胶钢板叠合层顶端低于中部波形钢板上端,不与上连接端板底面接触。The top of the rubber steel plate superposition layer is lower than the upper end of the middle corrugated steel plate and does not contact the bottom surface of the upper connecting end plate.

所述下前连接端板、下后连接端板为方形结构,所述前限位板、后限位板距下前连接端板、下后连接端板一侧长边的距离为满足其预留螺栓孔直径+10mm的要求,距两侧短边的距离相等。The lower front connecting end plate and the lower rear connecting end plate are square structures. The distance between the front limiting plate and the rear limiting plate and the long side of one side of the lower front connecting end plate and the lower rear connecting end plate meets the requirement of the reserved bolt hole diameter + 10mm, and the distance from the short sides on both sides is equal.

前限位板、后限位板与橡胶钢板叠合层通过丁基丙烯酸酯连接,中部波形钢板、橡胶钢板叠合层、前限位板、后限位板的侧面位于同一竖直平面上。The front limit plate, the rear limit plate and the rubber steel plate laminated layer are connected through butyl acrylate, and the sides of the middle corrugated steel plate, the rubber steel plate laminated layer, the front limit plate and the rear limit plate are located on the same vertical plane.

所述橡胶钢板叠合层与中部波形钢板通过丁基丙烯酸酯连接。The rubber steel plate laminated layer is connected to the middle corrugated steel plate through butyl acrylate.

所述中部波形钢板和橡胶钢板叠合层的表面为波纹结构,波纹结构分为竖向波纹和水平波纹;The surface of the laminated layer of the middle corrugated steel plate and the rubber steel plate is a corrugated structure, and the corrugated structure is divided into vertical corrugations and horizontal corrugations;

当为竖向波纹时,为拉压型SMA复合黏弹性阻尼器;中部波形钢板、橡胶钢板叠合层、前限位板、后限位板侧面整体外侧安装侧限位板,侧限位板防止其发生面外变形;When it is vertical corrugation, it is a tension-compression type SMA composite viscoelastic damper; the side limit plates are installed on the outer side of the middle corrugated steel plate, rubber steel plate laminated layer, front limit plate, and rear limit plate to prevent out-of-plane deformation;

所述前限位板、后限位板与侧限位板围合成一个整体,四个边相接处设置8个小脚钢,用于实现与前限位板、后限位板的连接,每边沿高度方向均匀的分布两个小角钢;The front limit plate, the rear limit plate and the side limit plate are enclosed as a whole, and 8 small foot steels are arranged at the junction of the four sides to achieve connection with the front limit plate and the rear limit plate, and two small angle steels are evenly distributed along the height direction of each side;

当为水平波纹时,为剪切型SMA复合黏弹性阻尼器,不设置小脚钢、侧限位板。When the corrugation is horizontal, it is a shear-type SMA composite viscoelastic damper, and no foot steel or side limit plate is provided.

所述中部波形钢板、橡胶钢板叠合层中由多层橡胶层和薄波形钢板层构成,橡胶层和薄波形钢板层均采用波纹截面,波纹截面包含波峰、波谷和波脊,定义波角为波谷或者波峰与波脊的外夹角,角度为30°、45°、60°。The middle corrugated steel plate and rubber steel plate laminated layer is composed of multiple rubber layers and thin corrugated steel plate layers. Both the rubber layer and the thin corrugated steel plate layer adopt a corrugated cross-section. The corrugated cross-section includes crests, troughs and ridges. The wave angle is defined as the outer angle between the trough or crest and the ridge, and the angle is 30°, 45°, and 60°.

所述橡胶钢板叠合层由橡胶层和薄波形钢板层通过高温高压硫化连接,橡胶钢板叠合层中的橡胶层与薄波形钢板层交替布置且波形钢板的布置方式有两种,分别为竖向波纹和水平波纹,薄波形钢板层作为模具使橡胶层也呈现出波纹截面,竖向波纹应用于拉压型的SMA复合黏弹性阻尼器;The rubber-steel laminated layer is connected by high-temperature and high-pressure vulcanization of a rubber layer and a thin corrugated steel layer. The rubber layer and the thin corrugated steel layer in the rubber-steel laminated layer are arranged alternately, and there are two arrangements of the corrugated steel plate, namely vertical corrugation and horizontal corrugation. The thin corrugated steel layer is used as a mold to make the rubber layer also present a corrugated cross section. The vertical corrugation is applied to a tension-compression type SMA composite viscoelastic damper.

水平波纹应用于剪切型的SMA复合黏弹性阻尼器,通过调整橡胶钢板叠合层中橡胶层和薄波形钢板层的厚度和数量来满足其变形和耗能要求。The horizontal corrugation is applied to the shear-type SMA composite viscoelastic damper, and its deformation and energy dissipation requirements are met by adjusting the thickness and number of the rubber layer and the thin corrugated steel plate layer in the rubber-steel plate laminate.

所述梅花形孔道的直径为形状记忆合金棒直径的2倍,四个孔道呈菱形分布于中部区域,在孔道内放置四根直径相同的形状记忆合金棒;The diameter of the plum blossom-shaped channel is twice the diameter of the shape memory alloy rod, and four channels are distributed in a diamond shape in the middle area, and four shape memory alloy rods with the same diameter are placed in the channels;

两个孔道位于橡胶钢板叠合层中部呈竖向分布、另外两个孔道位于中部呈水平分布,为了避免阻尼器在变形过程中形状记忆合金棒处的应力集中导致阻尼器提前发生破坏,因此四个梅花形孔道应呈菱形分布于橡胶钢板叠合层中,同一方向的梅花形孔道距离为5倍的形状记忆合金棒直径。Two channels are located in the middle of the rubber-steel plate laminate and are distributed vertically, and the other two channels are located in the middle and are distributed horizontally. In order to avoid stress concentration at the shape memory alloy rod during the deformation of the damper, which may cause premature damage to the damper, the four plum blossom-shaped channels should be distributed in the rubber-steel plate laminate in a diamond shape, and the distance between the plum blossom-shaped channels in the same direction is 5 times the diameter of the shape memory alloy rod.

在小变形情况下,橡胶钢板叠合层中橡胶剪切变形、形状记忆合金棒在梅花形孔道内沿橡胶变形方向滑动耗散能量;在大变形情况下,橡胶钢板叠合层中橡胶剪切变形、薄波形钢板层和形状记忆合金棒屈服发生弹塑性变形耗能能量。Under small deformation conditions, the rubber in the rubber-steel laminated layer shears and the shape memory alloy rod slides in the plum blossom-shaped channel along the rubber deformation direction to dissipate energy; under large deformation conditions, the rubber in the rubber-steel laminated layer shears and the thin corrugated steel layer and shape memory alloy rod yield to produce elastic-plastic deformation and dissipate energy.

所述上连接端板顶部开有六个的螺栓孔,下前连接端板和下后连接端板分别开有三个螺栓孔,利用高强螺栓与现浇或预制装配式构件中的预埋钢板连接;The upper connecting end plate has six bolt holes on the top, and the lower front connecting end plate and the lower rear connecting end plate have three bolt holes respectively, which are connected with the embedded steel plates in the cast-in-place or prefabricated assembled components by high-strength bolts;

上连接端板、中部波形钢板、橡胶钢板叠合层中薄波形钢板、前限位板、后限位板、侧限位板、下前连接端板、下后连接端板采用屈服点为345MPa的普通钢,橡胶钢板叠合层中橡胶层为丁腈橡胶。The upper connecting end plate, the middle corrugated steel plate, the thin corrugated steel plate in the rubber steel plate laminated layer, the front limit plate, the rear limit plate, the side limit plate, the lower front connecting end plate, and the lower rear connecting end plate are made of ordinary steel with a yield point of 345MPa, and the rubber layer in the rubber steel plate laminated layer is nitrile rubber.

一种模块化SMA复合黏弹性阻尼器的使用方法,包括以下步骤:A method for using a modular SMA composite viscoelastic damper comprises the following steps:

在小震作用下,橡胶钢板叠合层中橡胶层和薄钢板发生弹性剪切变形、形状记忆合金棒在梅花形孔道内沿变形方向滑动摩擦耗能两者协同耗能;Under the action of a small earthquake, the rubber layer and the thin steel plate in the rubber-steel laminate undergo elastic shear deformation, and the shape memory alloy rods dissipate energy by sliding friction in the plum blossom-shaped channel along the deformation direction. The two dissipate energy synergistically.

在中震作用下,橡胶钢板叠合层中橡胶层和薄钢板发生较大的变形,薄钢板发生局部塑性变形,形状记忆合金棒发生弹性变形;Under the action of moderate earthquake, the rubber layer and thin steel plate in the rubber-steel laminated layer undergo large deformation, the thin steel plate undergoes local plastic deformation, and the shape memory alloy rod undergoes elastic deformation;

在大震作用下,橡胶钢板叠合层中橡胶层和薄钢板,薄钢板进入塑性状态由形状记忆合金棒发生局部弹塑性变形,并在卸载后提供恢复力,是阻尼器恢复到加载前的状态。Under the action of a large earthquake, the rubber layer and the thin steel plate in the rubber-steel plate laminated layer, the thin steel plate enters a plastic state, and the shape memory alloy rod undergoes local elastic-plastic deformation, and provides restoring force after unloading, so that the damper returns to the state before loading.

模块化SMA复合黏弹性阻尼器的应用,模块化SMA复合黏弹性阻尼器通过工厂预制或现场装配;Application of modular SMA composite viscoelastic dampers, which are prefabricated in factories or assembled on site;

将模块化SMA复合黏弹性阻尼器布置于剪力墙墙趾、连梁和框架斜撑中,在地震作用下阻尼器发生拉压(剪切)变形耗散能量;The modular SMA composite viscoelastic damper is arranged in the toe of the shear wall, the connecting beam and the frame brace. Under the action of earthquake, the damper undergoes tensile and compressive (shear) deformation to dissipate energy.

在小震作用下形状记忆合金棒在孔道内滑动、橡胶钢板叠合层中橡胶拉压(剪切)变形耗散能量;在中震、大震作用下中部波形钢板、橡胶钢板叠合层中薄波形钢板层和形状记忆合金棒屈服发生弹塑性变形耗散能量。Under the action of small earthquakes, the shape memory alloy rod slides in the channel and the rubber in the rubber-steel plate laminated layer undergoes tensile and compressive (shear) deformation to dissipate energy; under the action of moderate and large earthquakes, the middle corrugated steel plate, the thin corrugated steel plate layer in the rubber-steel plate laminated layer and the shape memory alloy rod yield and undergo elastic-plastic deformation to dissipate energy.

本发明的有益效果:Beneficial effects of the present invention:

本发明提出一种模块化SMA复合黏弹性阻尼器,利用中部波形钢板、橡胶钢板叠合层、形状记忆合金棒三者共同变形耗能,充分发挥了金属和黏弹性材料的优势,在小震、中震和大震作用下都能参与工作耗散能量,并且在地震作用消失后具有一定的自复位能力,可有效降低带阻尼器构件的残余位移减轻主体结构的损伤。即可同时实现减震与可恢复功能的双重目的,因此在工程结构的抗震加固和修复领域具有广泛的应用前景。The present invention proposes a modular SMA composite viscoelastic damper, which utilizes the deformation and energy dissipation of the central corrugated steel plate, the rubber steel plate laminated layer, and the shape memory alloy rod, giving full play to the advantages of metal and viscoelastic materials, and can participate in the work and dissipate energy under the action of small earthquakes, medium earthquakes, and large earthquakes, and has a certain self-reset ability after the earthquake action disappears, which can effectively reduce the residual displacement of the damper component and reduce the damage to the main structure. That is, the dual purpose of shock absorption and recoverable function can be achieved at the same time, so it has a wide application prospect in the field of seismic reinforcement and repair of engineering structures.

利用模块化SMA复合黏弹性阻尼器吸收和耗散地震能量,可以减轻结构的地震响应,有效的保护主体结构的安全。在地震时,使损伤主要集中在阻尼器上,尽可能降低主体结构的损伤,达到损伤可控的目的;地震作用后更换受损构件即可恢复结构使用功能。因此模块化SMA复合黏弹性阻尼器同时具有自复位能力和可更换结构两种可恢复结构类型。By using modular SMA composite viscoelastic dampers to absorb and dissipate seismic energy, the seismic response of the structure can be reduced and the safety of the main structure can be effectively protected. During an earthquake, the damage is mainly concentrated on the damper, and the damage to the main structure is reduced as much as possible, so as to achieve the purpose of controllable damage; after the earthquake, the damaged components can be replaced to restore the use function of the structure. Therefore, the modular SMA composite viscoelastic damper has two types of recoverable structures: self-resetting ability and replaceable structure.

该阻尼器按布置在结构位置的不同,导致受力形式也不同,可分为拉压型与剪切型。在多遇震作用下,由橡胶拉压(剪切)变形、形状记忆合金棒在孔道内滑动耗能,波形钢板与形状记忆合金处于弹性阶段不参与耗能;在罕遇地震作用下橡胶拉压(剪切)变形、形状记忆合金和波形钢板弹塑性变形耗能,因此具有耗能能力强,适用范围广的特点。The damper is arranged in different structural positions, resulting in different stress forms, and can be divided into tension and compression type and shear type. Under frequent earthquakes, the rubber is deformed by tension and compression (shear), and the shape memory alloy rod slides in the channel to dissipate energy, while the corrugated steel plate and shape memory alloy are in the elastic stage and do not participate in energy dissipation; under rare earthquakes, the rubber is deformed by tension and compression (shear), and the shape memory alloy and corrugated steel plate are deformed by elastic-plastic deformation to dissipate energy, so it has the characteristics of strong energy dissipation capacity and wide application range.

该阻尼器中上连接端板、下前连接端板和下后连接端板均开有螺栓孔,用于与现浇或预制构件内的预埋钢板通过螺栓连接,便于拆卸和安装。且在地震作用后可以有效快速更换,达到连接更换便捷目的。The upper connecting end plate, the lower front connecting end plate and the lower rear connecting end plate of the damper are all provided with bolt holes for connecting with the embedded steel plates in the cast-in-place or prefabricated components through bolts, which is convenient for disassembly and installation. Moreover, it can be replaced quickly and effectively after an earthquake, achieving the purpose of convenient connection and replacement.

该阻尼器中侧限位板与前限位板、后限位板通过小角钢连接,维修拆卸方便,便于震后维修更换损坏部件,提高阻尼器的使用效率。The middle side limit plate of the damper is connected to the front limit plate and the rear limit plate by small angle steel, which is convenient for maintenance and disassembly, and is convenient for post-earthquake maintenance and replacement of damaged parts, thereby improving the use efficiency of the damper.

该阻尼器内设置四根形状记忆合金棒,形状记忆合金棒因其具有超弹性和形状记忆性,在变形过程中形状记忆合金棒内部发生相变转化,以此提供耗能能力和恢复力,在外力卸载后能恢复到加载前的状态,降低阻尼器残余位移,使阻尼器具有一定的自复位能力,更好的保护主体结构的安全。Four shape memory alloy rods are arranged in the damper. The shape memory alloy rods have superelasticity and shape memory. Phase change occurs inside the shape memory alloy rods during deformation, thereby providing energy dissipation capacity and restoring force. After the external force is unloaded, the shape memory alloy rods can return to the state before loading, reducing the residual displacement of the damper. The damper has a certain self-resetting ability and better protects the safety of the main structure.

本发明各部分构件加工制造工艺简单,各部件采用工厂预制,现场拼装,装配方式灵活,经济效益高。The manufacturing process of each component of the present invention is simple, each component is prefabricated in a factory and assembled on site, the assembly method is flexible and the economic benefit is high.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本发明的拉压型阻尼器三维视图。FIG. 1 is a three-dimensional view of the tension-compression damper of the present invention.

图2为本发明拉压型阻尼器内部构造示意图。FIG. 2 is a schematic diagram of the internal structure of the tension-compression damper of the present invention.

图3为本发明的橡胶钢板叠合层平面示意图。FIG3 is a schematic plan view of the rubber-steel plate laminated layer of the present invention.

图4为本发明的剪切型阻尼器三维视图。FIG. 4 is a three-dimensional view of the shear type damper of the present invention.

图5为本发明剪切型阻尼器内部构造示意图。FIG. 5 is a schematic diagram of the internal structure of the shear type damper of the present invention.

图6为本发明第一应用示意图。FIG6 is a schematic diagram of a first application of the present invention.

图7为本发明第二应用示意图。FIG. 7 is a schematic diagram of a second application of the present invention.

图8为本发明第三应用示意图。FIG8 is a schematic diagram of a third application of the present invention.

图9为本发明在ABAQUS有限元软件建模下的Mises应力云图一。FIG. 9 is a Mises stress cloud diagram 1 of the present invention under ABAQUS finite element software modeling.

图10为本发明在ABAQUS有限元软件建模下的Mises应力云图二。FIG. 10 is a second Mises stress cloud diagram of the present invention under modeling using ABAQUS finite element software.

图11为本发明在ABAQUS有限元软件建模下的Mises应力云图三。FIG. 11 is a third Mises stress cloud diagram of the present invention under modeling using ABAQUS finite element software.

图12为本发明在ABAQUS有限元软件建模下提取的滞回曲线。FIG. 12 is a hysteresis curve extracted by the present invention under ABAQUS finite element software modeling.

附图标记:Reference numerals:

图中:1-上连接端板;2-中部波形钢板;3-橡胶钢板叠合层;4-小角钢;5-前限位板;6-后限位板;7-侧限位板;8-下前连接端板;9-下后连接端板;10-形状记忆合金棒;11-橡胶层;12-薄波形钢板层;13-阻尼器;14-剪力墙;15-梁;16-耗能连梁;17-柱。In the figure: 1-upper connecting end plate; 2-middle corrugated steel plate; 3-rubber steel plate laminated layer; 4-small angle steel; 5-front limit plate; 6-rear limit plate; 7-side limit plate; 8-lower front connecting end plate; 9-lower rear connecting end plate; 10-shape memory alloy rod; 11-rubber layer; 12-thin corrugated steel plate layer; 13-damper; 14-shear wall; 15-beam; 16-energy dissipation connecting beam; 17-column.

具体实施方式DETAILED DESCRIPTION

下面结合实施例对本发明作进一步详细说明。The present invention is further described in detail below in conjunction with embodiments.

如图1至图5所示,本发明一种模块化SMA复合黏弹性阻尼器,包括上连接端板1、中部波形钢板2、橡胶钢板叠合层3、小角钢4、前限位板5、后限位板6、侧限位板7、下前连接端板8、下后连接端板9、形状记忆合金棒10、橡胶层11、薄波形钢板层12。As shown in Figures 1 to 5, a modular SMA composite viscoelastic damper of the present invention includes an upper connecting end plate 1, a middle corrugated steel plate 2, a rubber steel plate laminated layer 3, a small angle steel 4, a front limit plate 5, a rear limit plate 6, a side limit plate 7, a lower front connecting end plate 8, a lower rear connecting end plate 9, a shape memory alloy rod 10, a rubber layer 11, and a thin corrugated steel plate layer 12.

如图1、图2所示为拉压型阻尼器,耗能部件有中部波形钢板2、橡胶钢板叠合层3、形状记忆合金棒10,橡胶钢板叠合层3由橡胶层11和薄波形钢板层12交替布置,可以根据实际工程需要调整其层数,两块尺寸相等的橡胶钢板叠合层3顶端低于中部波形钢板2上端,对称分布于中部波形钢板2两侧通过丁基丙烯酸酯连接位形成整体,在其中部区域有4个呈菱形分布的梅花形孔道,孔道的直径为形状记忆合金棒10直径的2倍,4根形状记忆合金棒4分别位于孔道内,组成整体的耗能单元。As shown in Figures 1 and 2, a tension-compression damper is shown. The energy-absorbing components include a middle corrugated steel plate 2, a rubber steel plate laminated layer 3, and a shape memory alloy rod 10. The rubber steel plate laminated layer 3 is alternately arranged by rubber layers 11 and thin corrugated steel plate layers 12. The number of layers can be adjusted according to actual engineering needs. The tops of two rubber steel plate laminated layers 3 of equal size are lower than the upper end of the middle corrugated steel plate 2, and are symmetrically distributed on both sides of the middle corrugated steel plate 2 and connected by butyl acrylate to form a whole. In the central area, there are four plum blossom-shaped channels distributed in a diamond shape. The diameter of the channel is twice the diameter of the shape memory alloy rod 10. Four shape memory alloy rods 4 are respectively located in the channels to form an overall energy-absorbing unit.

所述模块化SMA复合黏弹性阻尼器中部波形钢板2上端与上连接端板1底面通过焊接连接,位于上连接端板1底面中部;两块下连接端板分别于前、后限位板通过焊接连接。The upper end of the middle corrugated steel plate 2 of the modular SMA composite viscoelastic damper is connected to the bottom surface of the upper connecting end plate 1 by welding, and is located in the middle of the bottom surface of the upper connecting end plate 1; the two lower connecting end plates are respectively connected to the front and rear limit plates by welding.

所述模块化SMA复合黏弹性阻尼器中部波形钢板2、橡胶钢板叠合层3、前限位板5、后限位板6短边侧处于同一直线上,安装侧限位板7防止其在短边方向发生变形,设置8个小脚钢4通过螺栓实现与前限位板5、后限位板6的连接,每边沿高度方向均匀的分布两个小角钢4。The short sides of the middle corrugated steel plate 2, the rubber steel plate superposition layer 3, the front limit plate 5, and the rear limit plate 6 of the modular SMA composite viscoelastic damper are in the same straight line, and the side limit plate 7 is installed to prevent it from deforming in the short side direction. Eight small foot steels 4 are arranged to be connected with the front limit plate 5 and the rear limit plate 6 by bolts, and two small angle steels 4 are evenly distributed along the height direction of each edge.

上连接端板1、下前连接端板8、下后连接端板9通过高强螺栓与结构中预留的钢构件连接,中部波形钢板2上端位于上连接端板1底面中部通过焊接连接,两块尺寸相等的橡胶钢板叠合层3顶端低于中部波形钢板2上端,对称分布于两侧并通过丁基丙烯酸酯连接,在中部波形钢板2、橡胶钢板叠合层3中部区域开有四个直径相同的梅花形孔道,孔道呈菱形分布于中部区域,在孔道内放置四根形状记忆合金棒10,下连接端板由下前连接端板8、下后连接端板9组成采用分离的两块,并分别与前限位板5、后限位板6焊接连接,限位板距下连接端板一侧长边的距离为满足其预留螺栓孔直径+10mm的要求,距两侧短边的距离相等,且前限位板5、后限位板6分别位于橡胶钢板叠合层3的外侧并通过丁基丙烯酸酯连接,中部波形钢板2、橡胶钢板叠合层3、前限位板5、后限位板6侧面处于同一直线上,安装侧限位板7防止其发生面外变形,设置8个小脚钢4实现与前限位板5、后限位板6的连接,每边沿高度方向均匀的分布两个小角钢4。The upper connecting end plate 1, the lower front connecting end plate 8, and the lower rear connecting end plate 9 are connected to the steel members reserved in the structure through high-strength bolts. The upper end of the middle corrugated steel plate 2 is located in the middle of the bottom surface of the upper connecting end plate 1 and is connected by welding. The tops of the two rubber steel plate laminated layers 3 of equal size are lower than the upper end of the middle corrugated steel plate 2, symmetrically distributed on both sides and connected by butyl acrylate. Four plum blossom-shaped channels with the same diameter are opened in the middle area of the middle corrugated steel plate 2 and the rubber steel plate laminated layer 3. The channels are distributed in the middle area in a diamond shape. Four shape memory alloy rods 10 are placed in the channels. The lower connecting end plate is composed of the lower front connecting end plate 8 and the lower rear connecting end plate 9. The lower connecting end plate is divided into The two pieces are separated and are welded to the front limit plate 5 and the rear limit plate 6 respectively. The distance between the limit plate and the long side of one side of the lower connecting end plate is to meet the requirement of the reserved bolt hole diameter + 10mm, and the distance from the short sides on both sides is equal. The front limit plate 5 and the rear limit plate 6 are respectively located on the outside of the rubber steel plate laminated layer 3 and are connected by butyl acrylate. The side surfaces of the middle corrugated steel plate 2, the rubber steel plate laminated layer 3, the front limit plate 5, and the rear limit plate 6 are in the same straight line. The side limit plate 7 is installed to prevent it from out-of-plane deformation. Eight small foot steels 4 are set to realize the connection with the front limit plate 5 and the rear limit plate 6, and two small angle steels 4 are evenly distributed along the height direction of each edge.

如图2所示为拉压型阻尼器的内部构造,在受到拉压作用力较小时,橡胶层拉压变形,形状记忆合金棒10在孔道内上下滑动耗能;在受到拉压作用力较大时橡胶层拉压变形、形状记忆合金和波形钢板弹塑性变形,橡胶、形状记忆合金和波形钢板三者协同工作具有良好的滞回耗能特性。As shown in FIG2 , the internal structure of the tension-compression damper is shown. When the tension-compression force is small, the rubber layer is deformed by tension and compression, and the shape memory alloy rod 10 slides up and down in the channel to dissipate energy. When the tension-compression force is large, the rubber layer is deformed by tension and compression, and the shape memory alloy and the corrugated steel plate are elastic-plastic deformed. The rubber, shape memory alloy and corrugated steel plate work together to have good hysteresis energy dissipation characteristics.

如图3所示为橡胶钢板叠合层平面示意图明确了波峰、波谷和波脊的位置,波形的设计能有效防止平面外的屈曲,从而充分发挥材料的强度提高阻尼器的耗能能力。As shown in Figure 3, the plane diagram of the rubber-steel laminated layer clearly defines the positions of the crests, troughs and ridges. The wave design can effectively prevent out-of-plane buckling, thereby giving full play to the strength of the material and improving the energy dissipation capacity of the damper.

如图4、图5所示为剪切型阻尼器,与拉压型阻尼器的区别在于中部波形钢板2、橡胶钢板叠合层3中的波纹为水平波纹,形状记忆合金棒10在孔道内左右滑动耗能,不设置小角钢4、侧限位板7。As shown in Figures 4 and 5, this is a shear type damper. The difference from the tension and compression type damper is that the corrugations in the middle corrugated steel plate 2 and the rubber steel plate laminated layer 3 are horizontal corrugations, the shape memory alloy rod 10 slides left and right in the channel to dissipate energy, and no small angle steel 4 or side limit plate 7 is provided.

如图6所示,本发明设置于剪力墙14墙趾处。根据研究及震害调查发现,剪力墙结构墙趾处受损严重影响结构整体的性能,利用阻尼器布置于剪力墙墙趾处当发生震害时,使阻尼器发生轴向拉压变形,使损伤集中于阻尼器保护主体结构的安全;在施工时,剪力墙底部区域预留阻尼器安装位置,在剪力墙中预留连接钢板,用于与阻尼器螺栓连接,所述阻尼器安置位置根据地震作用的能量大小和地震作用下剪力墙墙趾处易发生破坏的塑性区域确定。与阻尼器平行高度范围内的剪力墙水平分布钢筋间距加密布置来补偿损失的承载力。使装入阻尼器的剪力墙结构14的承载力与原完好剪力墙结构的承载力基本持平,但其耗能能力远远大于原被替换的墙脚处的耗能能力,震后具有一定的自复位能力确保结构的使用功能要求。As shown in FIG6 , the present invention is arranged at the toe of the shear wall 14. According to research and earthquake damage investigation, damage to the toe of the shear wall structure seriously affects the overall performance of the structure. When a damper is arranged at the toe of the shear wall, when an earthquake occurs, the damper undergoes axial tensile and compressive deformation, so that the damage is concentrated on the damper to protect the safety of the main structure. During construction, a damper installation position is reserved in the bottom area of the shear wall, and a connecting steel plate is reserved in the shear wall for bolt connection with the damper. The damper placement position is determined according to the energy of the earthquake and the plastic area at the toe of the shear wall that is prone to damage under the earthquake. The horizontal distribution of the steel bars of the shear wall within the height range parallel to the damper is densely arranged to compensate for the loss of bearing capacity. The bearing capacity of the shear wall structure 14 equipped with the damper is basically the same as that of the original intact shear wall structure, but its energy dissipation capacity is much greater than that of the original replaced wall foot. After the earthquake, it has a certain self-reset ability to ensure the functional requirements of the structure.

如图7所示,本发明设置于耗能连梁16中,剪力墙连梁处因其强度、延性和承载能力的原因极易发生损坏且维修困难,利用阻尼器设置耗能连梁,耗能连梁位于两片剪力墙14之间,在非耗能段与耗能段连接端预埋钢板,通过高强螺栓与SMA复合黏弹性阻尼器连接。在地震作用下阻尼器充当第一道防线的作用,发生剪切变形耗散能能量,因其具有一定的自复位能力当外力卸载时,使主体结构不需要修复就能恢复其加载前的状态,降低其维修成本。As shown in FIG7 , the present invention is set in the energy-absorbing connecting beam 16. The shear wall connecting beam is very easy to be damaged and difficult to repair due to its strength, ductility and bearing capacity. The energy-absorbing connecting beam is set by using a damper. The energy-absorbing connecting beam is located between two shear walls 14. A steel plate is embedded at the connection end of the non-energy-absorbing section and the energy-absorbing section, and connected to the SMA composite viscoelastic damper through high-strength bolts. Under the action of an earthquake, the damper acts as the first line of defense, dissipating energy by shear deformation. Because it has a certain self-reset ability, when the external force is unloaded, the main structure can be restored to its state before loading without repair, reducing its maintenance cost.

如图8所示,本发明设置于剪力墙14中,预制装配式建筑水平接缝处为连接薄弱环节,在地震作用下,易发生变形和破坏。本发明布置在剪力墙水平接缝处,利用螺栓于预制构件中的钢板连接,连接高效便捷,在受到外部激励时,阻尼器发生往复的剪切运动耗散输入结构中的振动能量,即提高水平接缝处的连接强度和延性,又起到保护主体结构安全的作用。As shown in FIG8 , the present invention is arranged in the shear wall 14. The horizontal joints of the prefabricated assembled building are weak links in connection and are prone to deformation and damage under earthquake action. The present invention is arranged at the horizontal joints of the shear wall and is connected to the steel plate in the prefabricated component by bolts. The connection is efficient and convenient. When subjected to external excitation, the damper undergoes reciprocating shear motion to dissipate the vibration energy in the input structure, that is, to improve the connection strength and ductility at the horizontal joints, and to protect the safety of the main structure.

如图9-图11所示利用ABAQUS有限元分析软件对所发明的SMA复合黏弹性阻尼器进行数值分析,从Mises应力云图可以看出,变形主要中部波形钢板、形状记忆棒和薄波形钢板,说明本发明所设计的SMA复合黏弹性阻尼器可以达到消能减震的目的,震后通过维修更换受损部件即可达到快速恢复使用功能的目的。As shown in Figures 9 to 11, the invented SMA composite viscoelastic damper was numerically analyzed using ABAQUS finite element analysis software. From the Mises stress cloud diagram, it can be seen that the deformation mainly occurs in the middle corrugated steel plate, shape memory rod and thin corrugated steel plate, indicating that the SMA composite viscoelastic damper designed in the present invention can achieve the purpose of energy dissipation and shock reduction, and the purpose of rapid recovery of the use function can be achieved by repairing and replacing damaged parts after an earthquake.

如图12所示为本发明利用ABAQUS有限元分析软件提取的滞回线,由滞回曲线可以看出本发明所设计的阻尼器,滞回曲线饱满呈反S形,且外力卸载后阻尼器的残余位移小于1mm,说明其具有优异的自复位能力,且随着位移幅值的增加耗能能力不断上升,具有承载力高耗能性能稳定的特点,可广泛应用到实际工程当中。As shown in FIG12 , the hysteresis loop is extracted by the ABAQUS finite element analysis software of the present invention. It can be seen from the hysteresis curve that the damper designed by the present invention has a full inverted S-shape, and the residual displacement of the damper after the external force is unloaded is less than 1 mm, indicating that it has excellent self-resetting ability, and the energy consumption capacity continues to increase with the increase of displacement amplitude. It has the characteristics of high bearing capacity and stable energy consumption performance, and can be widely used in practical engineering.

本发明的阻尼器,在地震发生后,通过橡胶钢板叠合层3中橡胶拉压剪切滞回变形耗能、波形钢板和形状记忆合金棒屈服共同耗散能量,保护主体结构不破坏或者发生微小破坏,形状记忆合金棒具有一定的自复位性,可以明显降低结构的残余位移,实现即保护结构,又安全、经济的目的。After an earthquake occurs, the damper of the present invention dissipates energy through the rubber tensile, compressive, shear hysteresis deformation energy dissipation in the rubber-steel plate laminated layer 3 and the yielding of the corrugated steel plate and the shape memory alloy rod, thereby protecting the main structure from damage or causing minor damage. The shape memory alloy rod has a certain self-resetting property, which can significantly reduce the residual displacement of the structure, thereby achieving the purpose of protecting the structure while being safe and economical.

本发明适用于小震、中震和大震情况下,具有“小震响应快易触发耗能、中震弹塑性耗能、大震整体弹塑性局部塑性耗能,且震后具有自复位能力的新型阻尼器”。震后依据新型阻尼器实际损伤情况,经检测评估,若整体完好,则可局部拆卸更换损伤部件后继续使用,从而降低震后修复成本减少经济损失,满足震后结构安全需求。The present invention is applicable to small, medium and large earthquakes, and has "fast response and easy triggering energy consumption in small earthquakes, elastic-plastic energy consumption in medium earthquakes, overall elastic-plastic and local plastic energy consumption in large earthquakes, and a new type of damper with self-reset capability after earthquakes". After the earthquake, according to the actual damage of the new damper, after testing and evaluation, if the whole is intact, it can be partially disassembled and the damaged parts replaced and then continued to be used, thereby reducing the cost of post-earthquake repair and reducing economic losses, and meeting the safety requirements of the post-earthquake structure.

Claims (9)

1.一种模块化SMA复合黏弹性阻尼器,其特征在于,包括水平设置的上连接端板(1)和下连接端板,上连接端板(1)和下连接端板上下相对设置,上连接端板(1)和下连接端板之间竖直设置中部波形钢板(2),位于中部波形钢板(2)两侧对称布置尺寸相同的橡胶钢板叠合层(3);1. A modular SMA composite viscoelastic damper, characterized in that it comprises an upper connecting end plate (1) and a lower connecting end plate which are arranged horizontally, the upper connecting end plate (1) and the lower connecting end plate are arranged vertically opposite to each other, a middle corrugated steel plate (2) is vertically arranged between the upper connecting end plate (1) and the lower connecting end plate, and rubber steel plate laminated layers (3) of the same size are symmetrically arranged on both sides of the middle corrugated steel plate (2); 在中部波形钢板(2)、橡胶钢板叠合层(3)中部区域开有四个直径相同梅花形孔道,孔道呈菱形分布于中部区域,在孔道内放置四根形状记忆合金棒(10);Four plum blossom-shaped holes with the same diameter are opened in the middle area of the middle corrugated steel plate (2) and the rubber steel plate laminated layer (3), and the holes are distributed in the middle area in a rhombus shape, and four shape memory alloy rods (10) are placed in the holes; 下连接端板包括下前连接端板(8)、下后连接端板(9),下前连接端板(8)、下后连接端板(9)拼合在一起;The lower connecting end plate comprises a lower front connecting end plate (8) and a lower rear connecting end plate (9), and the lower front connecting end plate (8) and the lower rear connecting end plate (9) are assembled together; 所述下前连接端板(8)上方竖直设置前限位板(5),下后连接端板(9)上方竖直设置后限位板(6),所述前限位板(5)、后限位板(6)分别位于两侧橡胶钢板叠合层(3)的外表面;A front limit plate (5) is vertically arranged above the lower front connection end plate (8), and a rear limit plate (6) is vertically arranged above the lower rear connection end plate (9), and the front limit plate (5) and the rear limit plate (6) are respectively located on the outer surfaces of the rubber steel plate laminated layers (3) on both sides; 橡胶钢板叠合层(3)顶端低于中部波形钢板(2)上端,不与上连接端板(1)底面接触。The top end of the rubber steel plate laminated layer (3) is lower than the upper end of the middle corrugated steel plate (2) and does not contact the bottom surface of the upper connecting end plate (1). 2.根据权利要求1所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述下前连接端板(8)、下后连接端板(9)为方形结构,所述前限位板(5)、后限位板(6)距下前连接端板(8)、下后连接端板(9)一侧长边的距离为满足其预留螺栓孔直径+10mm的要求,距两侧短边的距离相等;2. A modular SMA composite viscoelastic damper according to claim 1, characterized in that the lower front connecting end plate (8) and the lower rear connecting end plate (9) are square structures, and the distance between the front limiting plate (5) and the rear limiting plate (6) and the long side of one side of the lower front connecting end plate (8) and the lower rear connecting end plate (9) is to meet the requirement of the reserved bolt hole diameter + 10mm, and the distance from the short sides on both sides is equal; 前限位板(5)、后限位板(6)与橡胶钢板叠合层(3)通过丁基丙烯酸酯连接,中部波形钢板(2)、橡胶钢板叠合层(3)、前限位板(5)、后限位板(6)的侧面位于同一竖直平面上;The front limit plate (5), the rear limit plate (6) and the rubber steel plate laminated layer (3) are connected by butyl acrylate, and the side surfaces of the middle corrugated steel plate (2), the rubber steel plate laminated layer (3), the front limit plate (5) and the rear limit plate (6) are located on the same vertical plane; 所述橡胶钢板叠合层(3)与中部波形钢板(2)通过丁基丙烯酸酯连接。The rubber steel plate laminate layer (3) is connected to the middle corrugated steel plate (2) via butyl acrylate. 3.根据权利要求1所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述中部波形钢板(2)和橡胶钢板叠合层(3)表面为波纹结构,波纹结构分为竖向波纹和水平波纹;3. A modular SMA composite viscoelastic damper according to claim 1, characterized in that the surface of the middle corrugated steel plate (2) and the rubber steel plate laminated layer (3) is a corrugated structure, and the corrugated structure is divided into vertical corrugations and horizontal corrugations; 当为竖向波纹时,为拉压型SMA复合黏弹性阻尼器;中部波形钢板(2)、橡胶钢板叠合层(3)、前限位板(5)、后限位板(6)侧面整体外侧安装侧限位板(7),侧限位板(7)防止其发生面外变形;When the corrugation is vertical, it is a tension-compression type SMA composite viscoelastic damper; a side limit plate (7) is installed on the outer side of the middle corrugated steel plate (2), the rubber steel plate laminated layer (3), the front limit plate (5), and the rear limit plate (6) as a whole, and the side limit plate (7) prevents them from out-of-plane deformation; 所述前限位板(5)、后限位板(6)与侧限位板(7)围合成一个整体,四个边相接处设置8个小脚钢(4),用于实现与前限位板(5)、后限位板(6)的连接,每边沿高度方向均匀的分布两个小角钢(4);The front limit plate (5), the rear limit plate (6) and the side limit plate (7) are enclosed as a whole, and eight small foot steels (4) are arranged at the joints of the four sides for realizing connection with the front limit plate (5) and the rear limit plate (6), and two small angle steels (4) are evenly distributed along the height direction of each side; 当为水平波纹时,为剪切型SMA复合黏弹性阻尼器,不设置小脚钢(4)、侧限位板(7)。When the corrugation is horizontal, it is a shear-type SMA composite viscoelastic damper, and the small foot steel (4) and the side limit plate (7) are not provided. 4.根据权利要求1所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述中部波形钢板(2)、橡胶钢板叠合层(3)分别由多层橡胶层(11)和薄波形钢板层(12)构成,橡胶层(11)和薄波形钢板层(12)均采用波纹截面,波纹截面包含波峰、波谷和波脊,定义波角为波谷或者波峰与波脊的外夹角,角度为30°、45°、60°。4. A modular SMA composite viscoelastic damper according to claim 1, characterized in that the middle corrugated steel plate (2) and the rubber steel plate laminated layer (3) are respectively composed of multiple rubber layers (11) and thin corrugated steel plate layers (12), and the rubber layer (11) and the thin corrugated steel plate layer (12) both adopt a corrugated cross-section, and the corrugated cross-section includes a crest, a trough and a ridge, and the wave angle is defined as the outer angle between the trough or the crest and the ridge, and the angle is 30°, 45°, or 60°. 5.根据权利要求4所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述橡胶钢板叠合层(3)由橡胶层(11)和薄波形钢板层(12)通过高温高压硫化连接,橡胶钢板叠合层(3)中的橡胶层(11)与薄波形钢板层(12)交替布置且波形钢板的布置方式有两种,分别为竖向波纹和水平波纹,薄波形钢板层(12)作为模具使橡胶层(11)也呈现出波纹截面,竖向波纹应用于拉压型的SMA复合黏弹性阻尼器;5. A modular SMA composite viscoelastic damper according to claim 4, characterized in that the rubber-steel plate laminated layer (3) is connected by a rubber layer (11) and a thin corrugated steel plate layer (12) through high temperature and high pressure vulcanization, the rubber layer (11) and the thin corrugated steel plate layer (12) in the rubber-steel plate laminated layer (3) are arranged alternately, and there are two arrangements of the corrugated steel plates, namely vertical corrugation and horizontal corrugation, the thin corrugated steel plate layer (12) is used as a mold to make the rubber layer (11) also present a corrugated cross section, and the vertical corrugation is applied to the tension-compression type SMA composite viscoelastic damper; 水平波纹应用于剪切型的SMA复合黏弹性阻尼器,通过调整橡胶钢板叠合层(3)中橡胶层(11)和薄波形钢板层(12)的厚度和数量来满足其变形和耗能要求。The horizontal corrugation is applied to a shear-type SMA composite viscoelastic damper, and its deformation and energy dissipation requirements are met by adjusting the thickness and number of the rubber layer (11) and the thin corrugated steel plate layer (12) in the rubber-steel plate laminate layer (3). 6.根据权利要求1所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述梅花形孔道的直径为形状记忆合金棒(10)直径的2倍,四个孔道呈菱形分布于中部区域,在孔道内放置四根直径相同的形状记忆合金棒(10);6. A modular SMA composite viscoelastic damper according to claim 1, characterized in that the diameter of the plum blossom-shaped channel is twice the diameter of the shape memory alloy rod (10), four channels are distributed in a diamond shape in the middle area, and four shape memory alloy rods (10) with the same diameter are placed in the channel; 两个孔道位于橡胶钢板叠合层(3)中部呈竖向分布、另外两个孔道位于中部呈水平分布,四个梅花形孔道应呈菱形分布于橡胶钢板叠合层(3)中,同一方向的梅花形孔道距离为5倍的形状记忆合金棒(10)直径。Two holes are located in the middle of the rubber-steel plate laminated layer (3) and are distributed vertically, and the other two holes are located in the middle and are distributed horizontally. The four plum blossom-shaped holes should be distributed in the rubber-steel plate laminated layer (3) in a rhombus shape, and the distance between the plum blossom-shaped holes in the same direction is 5 times the diameter of the shape memory alloy rod (10). 在小变形情况下,橡胶钢板叠合层(3)中橡胶剪切变形、形状记忆合金棒(10)在梅花形孔道内沿橡胶变形方向滑动耗散能量;在大变形情况下,橡胶钢板叠合层(3)中橡胶剪切变形、薄波形钢板层(12)和形状记忆合金棒(10)屈服发生弹塑性变形耗能能量。In the case of small deformation, the rubber in the rubber-steel laminated layer (3) is sheared and deformed, and the shape memory alloy rod (10) slides in the plum blossom-shaped channel along the rubber deformation direction to dissipate energy; in the case of large deformation, the rubber in the rubber-steel laminated layer (3) is sheared and deformed, and the thin corrugated steel layer (12) and the shape memory alloy rod (10) yield and produce elastic-plastic deformation to dissipate energy. 7.根据权利要求1所述的一种模块化SMA复合黏弹性阻尼器,其特征在于,所述上连接端板(1)顶部开有六个的螺栓孔,下前连接端板(8)和下后连接端板(9)分别开有三个螺栓孔,利用高强螺栓与现浇或预制装配式构件中的预埋钢板连接;7. A modular SMA composite viscoelastic damper according to claim 1, characterized in that the top of the upper connecting end plate (1) is provided with six bolt holes, and the lower front connecting end plate (8) and the lower rear connecting end plate (9) are respectively provided with three bolt holes, and are connected to the embedded steel plates in the cast-in-place or prefabricated assembled components by high-strength bolts; 上连接端板(1)、中部波形钢板(2)、橡胶钢板叠合层(3)中薄波形钢板(12)、前限位板(5)、后限位板(6)、侧限位板(7)、下前连接端板(8)、下后连接端板(9)采用屈服点为345MPa的普通钢,橡胶钢板叠合层(3)中橡胶层(11)为丁腈橡胶。The upper connecting end plate (1), the middle corrugated steel plate (2), the thin corrugated steel plate (12) in the rubber steel plate laminated layer (3), the front limit plate (5), the rear limit plate (6), the side limit plate (7), the lower front connecting end plate (8), and the lower rear connecting end plate (9) are made of ordinary steel with a yield point of 345 MPa, and the rubber layer (11) in the rubber steel plate laminated layer (3) is nitrile rubber. 8.根据权利要求1-7任一项所述的一种模块化SMA复合黏弹性阻尼器的使用方法,其特征在于,包括以下步骤:8. A method for using a modular SMA composite viscoelastic damper according to any one of claims 1 to 7, characterized in that it comprises the following steps: 在小震作用下,橡胶钢板叠合层(3)中橡胶层(11)和薄钢板(12)发生弹性剪切变形、形状记忆合金棒(10)在梅花形孔道内沿变形方向滑动摩擦耗能两者协同耗能;Under the action of a small earthquake, the rubber layer (11) and the thin steel plate (12) in the rubber-steel plate laminate (3) undergo elastic shear deformation, and the shape memory alloy rod (10) dissipates energy by sliding friction in the plum blossom-shaped hole along the deformation direction, and the two dissipate energy in a coordinated manner; 在中震作用下,橡胶钢板叠合层(3)中橡胶层(11)和薄钢板(12)发生较大的变形,薄钢板(12)发生局部塑性变形,形状记忆合金棒(10)发生弹性变形;Under the action of a moderate earthquake, the rubber layer (11) and the thin steel plate (12) in the rubber-steel plate laminated layer (3) undergo significant deformation, the thin steel plate (12) undergoes local plastic deformation, and the shape memory alloy rod (10) undergoes elastic deformation; 在大震作用下,橡胶钢板叠合层(3)中橡胶层(11)和薄钢板(12),薄钢板(12)进入塑性状态由形状记忆合金棒(10)发生局部弹塑性变形,并在卸载后提供恢复力,是阻尼器恢复到加载前的状态。Under the action of a large earthquake, the rubber layer (11) and the thin steel plate (12) in the rubber-steel plate laminated layer (3), the thin steel plate (12) enters a plastic state, undergoes local elastic-plastic deformation by the shape memory alloy rod (10), and provides a restoring force after unloading, so that the damper returns to the state before loading. 9.根据权利要求1-7任一项所述的一种模块化SMA复合黏弹性阻尼器的应用,其特征在于,模块化SMA复合黏弹性阻尼器通过工厂预制或现场装配;9. The use of a modular SMA composite viscoelastic damper according to any one of claims 1 to 7, characterized in that the modular SMA composite viscoelastic damper is prefabricated in a factory or assembled on site; 将模块化SMA复合黏弹性阻尼器布置于剪力墙墙趾、连梁和框架斜撑中,在地震作用下阻尼器发生拉压(剪切)变形耗散能量;The modular SMA composite viscoelastic damper is arranged in the toe of the shear wall, the connecting beam and the frame brace. Under the action of earthquake, the damper undergoes tensile and compressive (shear) deformation to dissipate energy. 在小震作用下形状记忆合金棒(10)在孔道内滑动、橡胶钢板叠合层(3)中橡胶拉压(剪切)变形耗散能量;在中震、大震作用下中部波形钢板(2)、橡胶钢板叠合层(3)中薄波形钢板层(12)和形状记忆合金棒(10)屈服发生弹塑性变形耗散能量。Under the action of a small earthquake, the shape memory alloy rod (10) slides in the hole, and the rubber in the rubber-steel plate laminated layer (3) undergoes tensile and compressive (shearing) deformation to dissipate energy; under the action of a medium or large earthquake, the middle corrugated steel plate (2), the thin corrugated steel plate layer (12) in the rubber-steel plate laminated layer (3), and the shape memory alloy rod (10) yield and undergo elastic-plastic deformation to dissipate energy.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119332847A (en) * 2024-09-23 2025-01-21 重庆大学 A layered assembled concrete joint shear wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119332847A (en) * 2024-09-23 2025-01-21 重庆大学 A layered assembled concrete joint shear wall

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