CN203613671U - Shearing and bending combined type staged yield mild steel damper - Google Patents
Shearing and bending combined type staged yield mild steel damper Download PDFInfo
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- 229910001209 Low-carbon steel Inorganic materials 0.000 title claims abstract description 110
- 238000005452 bending Methods 0.000 title claims abstract description 23
- 238000010008 shearing Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 122
- 239000010959 steel Substances 0.000 claims abstract description 122
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 59
- 238000005265 energy consumption Methods 0.000 abstract description 16
- 230000035939 shock Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型属于土木工程抗震与减震领域，尤其涉及结构的被动减震控制系统中的金属耗能阻尼器，具体来说是一种可以为增加建筑结构阻尼、减少结构地震响应的新型剪切与弯曲组合型分阶段屈服软钢阻尼器。The utility model belongs to the field of anti-seismic and shock-absorbing civil engineering, and in particular relates to a metal energy-dissipating damper in a passive shock-absorbing control system of a structure. Combined with bending type staged yield mild steel damper.
背景技术Background technique
金属耗能阻尼器是利用金属材料不同构成形式进入塑性后的滞回来耗能。由于软钢等金属材料进入塑性后具有良好的滞回能力，因而被广泛运用制造各种形式的阻尼器。从受力形式上可分为轴向屈服型、剪切屈服型、弯曲屈服型和扭转屈服型阻尼器。目前常见的阻尼器产品有：X型和三角形阻尼器、剪切型软钢阻尼器、扭转梁耗能器、弯曲梁耗能器、U行钢板耗能器、钢棒耗能器、圆环耗能器、加劲圆环耗能器等。相对于黏滞阻尼器、粘弹性阻尼器等阻尼器，金属阻尼器具有易加工、易维护、滞回耗能能力稳定等诸多优点，因此被广泛应用于工程结构的减隔震领域。The metal energy dissipation damper utilizes the hysteretic return energy dissipation after the metal material has entered plasticity in different forms. Because metal materials such as mild steel have good hysteresis ability after entering plasticity, they are widely used to manufacture various forms of dampers. From the force form, it can be divided into axial yield type, shear yield type, bending yield type and torsional yield type damper. At present, the common damper products are: X-type and triangular dampers, shear-type mild steel dampers, torsion beam energy dissipators, bending beam energy dissipators, U-line steel plate energy dissipators, steel bar energy dissipators, and rings Energy consumers, stiffening ring energy consumers, etc. Compared with dampers such as viscous dampers and viscoelastic dampers, metal dampers have many advantages such as easy processing, easy maintenance, and stable hysteretic energy dissipation capacity, so they are widely used in the field of shock absorption and isolation of engineering structures.
目前已有的阻尼器大多形式单一，无法同时满足小震、中震和大震时的要求。许多阻尼器只在大震下起作用，小震时阻尼器则在弹性状态，能量则由主体结构来耗散，从而造成了主体结构一定程度上的损伤；另外一些阻尼器屈服位移较小，小震屈服耗能良好，在大震时也有较好的耗能，但这类阻尼器附加给结构的刚度也较大，反而导致地震作用的增大。另一方面，当小震时阻尼器就已进入塑性变形，而未经大震需要全部更换，这样经济性较差。而地震也一般伴随着主震、余震或群震，而余震大多会紧随主震之后，且震级往往较大，延续时间较长，故研发多阶段耗能且耗能能力强的阻尼器成为当务之急。Most of the existing dampers have a single form, which cannot meet the requirements of small earthquakes, moderate earthquakes and large earthquakes at the same time. Many dampers only function under large earthquakes. During small earthquakes, the dampers are in an elastic state, and the energy is dissipated by the main structure, thus causing damage to the main structure to a certain extent; other dampers have smaller yield displacements, The yield energy consumption of small earthquakes is good, and it also has good energy dissipation during large earthquakes, but the stiffness added to the structure by this type of damper is also relatively large, which leads to the increase of earthquake action. On the other hand, when there is a small earthquake, the damper has already entered into plastic deformation, and it needs to be completely replaced before a major earthquake, which is less economical. Earthquakes are generally accompanied by main shocks, aftershocks or swarm earthquakes, and aftershocks mostly follow the main shock, and the magnitude is often larger and the duration is longer. It is imperative.
实用新型内容Utility model content
本实用新型的目的是针对现有金属耗能阻尼器存在的耗能单一的缺陷，提出了一种能够根据地震的大小实现不同耗能状态的新型剪切与弯曲组合型分阶段屈服软钢阻尼器。The purpose of this utility model is to aim at the defect of single energy consumption existing in the existing metal energy dissipation damper, and propose a new shearing and bending combined type staged yield soft steel damper that can realize different energy consumption states according to the size of the earthquake device.
本实用新型采用的技术方案为：一种剪切与弯曲组合型分阶段屈服软钢阻尼器，包括两块L形连接钢板、矩形钢片耗能组件、圆形软钢耗能组件、X形软钢耗能钢片和套箍件；The technical scheme adopted by the utility model is: a combined shearing and bending type yield mild steel damper in stages, including two L-shaped connecting steel plates, a rectangular steel sheet energy dissipation component, a circular mild steel energy dissipation component, an X-shaped Mild steel energy-dissipating steel sheets and hoops;
所述两块L形连接钢板相对设置，所述矩形钢片耗能组件、圆形软钢耗能组件、X形软钢耗能钢片横向安装在两块L形连接钢板之间；The two L-shaped connecting steel plates are arranged oppositely, and the rectangular steel sheet energy-dissipating component, the circular mild steel energy-dissipating component, and the X-shaped mild steel energy-dissipating steel sheet are horizontally installed between the two L-shaped connecting steel plates;
所述矩形钢片耗能组件由矩形软钢耗能钢片和矩形钢片连接板组成，两片并行设置的矩形软钢耗能钢片的两端焊接有矩形钢片连接板；所述圆形软钢耗能组件由圆形软钢耗能棒与圆形棒连接板组成，两个并行设置的圆形软钢耗能棒的两端焊接有圆形棒连接板；The rectangular steel sheet energy-dissipating assembly is composed of a rectangular mild steel energy-dissipating steel sheet and a rectangular steel sheet connecting plate, and the two ends of the rectangular mild steel energy-consuming steel sheets arranged in parallel are welded with a rectangular steel sheet connecting plate; The shaped mild steel energy dissipation component is composed of a round mild steel energy dissipation rod and a circular rod connecting plate, and the two ends of the round mild steel energy dissipating rods arranged in parallel are welded with a circular rod connecting plate;
所述矩形钢片连接板和圆形棒连接板分别通过高强螺栓与L形连接钢板连接，所述X形软钢耗能钢片的两端伸出L形连接钢板，并与套箍件连接；The connecting plate of the rectangular steel sheet and the connecting plate of the circular bar are respectively connected with the L-shaped connecting steel plate through high-strength bolts, and the two ends of the X-shaped mild steel energy-dissipating steel sheet protrude from the L-shaped connecting plate and are connected with the hoop ;
所述矩形软钢耗能钢片的面设置成水平面，X形软钢耗能钢片的面设置成垂直面。The surface of the rectangular mild steel energy-dissipating steel sheet is set as a horizontal plane, and the surface of the X-shaped mild steel energy-dissipating steel sheet is set as a vertical surface.
作为优选，所述矩形软钢耗能钢片、圆形软钢耗能棒、X形软钢耗能钢片采用屈服强度在100MPa-225MPa之间的软钢制成。Preferably, the rectangular mild steel energy-dissipating steel sheet, the round mild steel energy-dissipating rod, and the X-shaped mild steel energy-dissipating steel sheet are made of mild steel with a yield strength between 100 MPa and 225 MPa.
作为优选，所述L形连接钢板、矩形钢片连接板、圆形棒连接板和套箍件采用屈服强度大于等于235MPa的钢材制成。Preferably, the L-shaped connecting steel plate, the rectangular steel sheet connecting plate, the circular bar connecting plate and the hoop are made of steel with a yield strength greater than or equal to 235 MPa.
作为优选，所述矩形钢片耗能组件、圆形软钢耗能组件、X形软钢耗能钢片横向安装在两块L形连接钢板之间的排列方式为：由上、下并排的两列组成，每列均是矩形钢片耗能组件在中间、矩形钢片耗能组件的两侧是圆形软钢耗能组件、圆形软钢耗能组件两外侧是X形软钢耗能钢片。As a preference, the arrangement of the rectangular steel sheet energy dissipation assembly, the circular mild steel energy dissipation assembly, and the X-shaped mild steel energy dissipation steel sheet horizontally installed between two L-shaped connecting steel plates is as follows: from top to bottom Composed of two columns, each column is a rectangular steel sheet energy dissipation component in the middle, the two sides of the rectangular steel sheet energy dissipation component are circular mild steel energy dissipation components, and the two outer sides of the circular mild steel energy dissipation component are X-shaped mild steel energy dissipation components Can steel sheet.
作为优选，所述L形连接钢板的水平面部分通过高强螺栓与建筑结构相连。Preferably, the horizontal part of the L-shaped connecting steel plate is connected to the building structure through high-strength bolts.
本实用新型相比现有技术有如下优点：Compared with the prior art, the utility model has the following advantages:
本实用新型通过采用不同形状及耗能方式的软钢耗能组件组成，矩形钢片耗能组件、圆形软钢耗能组件和X形钢片耗能钢片安装在L形连接钢板的腔体内，其中矩形软钢耗能组件初始刚度大、耗能能力强、屈服位移较小，属于剪切型，小震时矩形软钢耗能钢片经历较小的位移可进入塑性耗能；圆形软钢耗能组件初始刚度较矩形软钢耗能钢片小，耗能能力强且韧性好，属于剪弯型，进入中震时圆形软钢耗能组件逐步进入塑性耗能，与矩形软钢耗能钢片共同耗能，同时起着很好的过渡作用；X形软钢耗能钢片初始刚度小、屈服位移较大，属于弯曲型，大震时X形软钢耗能钢片开始屈服，与矩形软钢耗能钢片与圆形软钢耗能组件共同耗能，从而实现阻尼器的分阶段屈服耗能的效果。The utility model is composed of mild steel energy-dissipating components with different shapes and energy-dissipating modes. Rectangular steel sheet energy-dissipating components, circular mild steel energy-dissipating components and X-shaped steel sheet energy-dissipating steel sheets are installed in the cavity of the L-shaped connecting steel plate. In the body, the rectangular mild steel energy-dissipating component has high initial stiffness, strong energy dissipation capacity, and small yield displacement, which belongs to the shear type. The rectangular mild-steel energy-dissipating steel sheet undergoes a small displacement and can enter into plastic energy dissipation during small earthquakes; the circular The initial rigidity of the shaped mild steel energy-dissipating component is smaller than that of the rectangular mild steel energy-dissipating steel sheet, and the energy-dissipating capacity is strong and the toughness is good. The energy-dissipating steel sheets of mild steel dissipate energy together, and at the same time play a very good transitional role; the X-shaped energy-dissipating steel sheets of mild steel have small initial stiffness and large yield displacement, and belong to the bending type. The sheet begins to yield, and dissipates energy together with the rectangular mild steel energy-dissipating steel sheet and the circular mild-steel energy-dissipating component, thereby achieving the effect of staged yield energy dissipation of the damper.
本实用新型有效地解决了传统阻尼器减震耗能水准单一缺陷，而且易于安装更换、空间占有率小、对建筑的功能和外观影响较小、受力分阶段清晰、制造成本低，并具有耗能的能力强、实用性与耐久性好。The utility model effectively solves the single defect of the traditional shock absorber energy consumption level, and is easy to install and replace, has a small space occupation rate, has little influence on the function and appearance of the building, has clear force stages, and has low manufacturing cost. Powerful energy consumption, good practicability and durability.
本实用新型在实际工程设计中，可以根据实际要求调节组成部件的尺寸、数量、材料等参数制作不同初始刚度、塑性滞回耗能能力的阻尼器。In the actual engineering design of the utility model, the size, quantity, material and other parameters of the components can be adjusted according to actual requirements to manufacture dampers with different initial stiffness and plastic hysteretic energy consumption capacity.
附图说明Description of drawings
图1为本实用新型的阻尼器立体结构示意图；Fig. 1 is the schematic diagram of the three-dimensional structure of the damper of the present utility model;
图2为本实用新型的阻尼器内部布置示意图；Fig. 2 is a schematic diagram of the internal arrangement of the damper of the present invention;
图3为本实用新型的矩形钢片耗能组件结构示意图；Fig. 3 is a structural schematic diagram of a rectangular steel sheet energy dissipation assembly of the present invention;
图4为本实用新型的圆形软钢耗能组件结构示意图；Fig. 4 is a structural schematic diagram of a circular mild steel energy-consuming component of the present invention;
图5为本实用新型的阻尼器安装结构侧面示意图；Fig. 5 is a schematic side view of the installation structure of the damper of the present invention;
图6为本实用新型的阻尼器在建筑结构中采用中间柱型安装的示意图；Fig. 6 is the schematic diagram that the damper of the present invention is installed in the middle column type in the building structure;
图7为本实用新型的阻尼器在建筑结构中采用支撑型安装的示意图。Fig. 7 is a schematic diagram of the damper of the present invention being installed in a support type in a building structure.
其中：1—L形连接钢板；2—矩形软钢耗能钢片；3—矩形钢片连接板；4—圆形软钢耗能棒；5—圆形棒连接板；6—X形软钢耗能钢片；7—套箍件；8—矩形钢片耗能组件；9—圆形软钢耗能组件。Among them: 1—L-shaped connecting steel plate; 2—Rectangular mild steel energy-dissipating steel sheet; 3—Rectangular steel sheet connecting plate; 4—Round mild steel energy-dissipating rod; 5—Round rod connecting plate; 6—X-shaped soft steel plate Steel energy-dissipating steel sheet; 7—cuff piece; 8—rectangular steel sheet energy-dissipating component; 9—round mild steel energy-dissipating component.
具体实施方式Detailed ways
下面结合具体实施方式和附图对本实用新型做进一步说明：Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described:
如图1-5所示：一种剪切与弯曲组合型分阶段屈服软钢阻尼器，该阻尼器由两块L形连接钢板1、矩形软钢耗能钢片2、矩形钢片连接板3、圆形软钢耗能棒4、圆形棒连接板5、X形软钢耗能钢片6和套箍件7组成；其中，两块并行设置的矩形软钢耗能钢片2与上下两块矩形钢片连接板3垂直焊接构成矩形钢片耗能组件8；两个圆形软钢耗能棒4与上下两块圆形棒连接板5垂直焊接构成圆形软钢耗能组件9；矩形钢片耗能组件8、圆形软钢耗能组件9可分别通过高强螺栓与L形连接钢板1相连；X形软钢耗能钢片6和两端伸出L形连接钢板1的部分与套箍件7连接。其中X形软钢耗能钢片6、矩形钢片耗能组件8和圆形软钢耗能组件9的数量可根据实际工程需要选用；L形侧钢板1的水平面部分通过高强螺栓与建筑结构相连。As shown in Figure 1-5: a combined shear and bending type staged yield mild steel damper, the damper is composed of two L-shaped connecting
本实用新型的剪切与弯曲组合型分阶段屈服软钢阻尼器是依靠软钢材料在外力作用下进入塑性状态滞回耗能吸收能量。为了让阻尼器可以尽早地进入工作状态，耗能材料软钢的屈服强度不宜过高且具有较大的延性，所以矩形软钢耗能钢片2、圆形软钢耗能棒4、X形软钢耗能钢片6采用屈服强度在100MPa-225MPa之间的软钢制成，其尺寸可根据实际方案中耗能要求确定。另外为保证阻尼器性能的稳定，L形连接钢板1、矩形钢片连接板3、圆形棒连接板5和套箍件7都采用屈服强度不低于235MPa的钢材制成，并具有一定的厚度。在实际工程设计中，可以根据实际要求调节组成部件的尺寸、数量、材料等参数制作不同初始刚度、塑性滞回耗能能力的阻尼器。The shearing and bending combined type stage yield mild steel damper of the utility model relies on the mild steel material entering the plastic state hysteretic energy consumption and absorbing energy under the action of external force. In order to allow the damper to enter the working state as soon as possible, the yield strength of the energy-dissipating material mild steel should not be too high and has relatively high ductility, so the rectangular mild steel energy-dissipating
实施例1Example 1
本实用新型采用中间柱型安装在建筑结构中时，如图6所示，数个剪切与弯曲组合型分阶段屈服软钢阻尼器组合在一起，安装于建筑的主体结构中。剪切与弯曲组合型分阶段屈服软钢阻尼器上部的L形侧钢板的顶部水平面部分通过高强螺栓与楼层的上梁相连，下部的L形侧钢板1的底部水平面部分通过高强螺栓与楼层下部的墙型支撑相连。当发生地震时，每个阻尼器中的两个L形侧钢板产生相对位移，小震时由于矩形软钢耗能组件屈服位移较小，很小位移时首先开始进行塑性变形耗能，这是第一阶段的耗能，可以耗散小震时地震能量；中震时圆形软钢耗能组件初始刚度较矩形软钢耗能组件小，耗能能力强且韧性好，属于剪弯型，进入中震时圆形软钢耗能组件逐步进入塑性耗能，与矩形软钢耗能组件共同耗能，同时起着很好的过渡作用，此为第二阶段屈服耗能；大震时由于X形软钢耗能钢片初始刚度小、屈服位移较大，属于弯曲型，大震时X形软钢耗能钢片开始屈服，与矩形软钢耗能组件与圆形软钢耗能组件共同耗能，耗散地震能量，此为第三阶段屈服耗能。实际使用中X形软钢耗能钢片的数量相对较多，可作为耗能储备在大震时消耗更多的能量，最终保护主体结构安全的目的。When the utility model adopts the middle column type to be installed in the building structure, as shown in Figure 6, several shear and bending combined type yield mild steel dampers in stages are combined together and installed in the main structure of the building. The top horizontal part of the upper L-shaped side plate of the combined shear and bending type mild steel damper is connected to the upper beam of the floor through high-strength bolts, and the bottom horizontal part of the lower L-
实施例2Example 2
本实用新型采用支撑型安装在建筑结构中时，如图7所示，数个剪切与弯曲组合型分阶段屈服软钢阻尼器组合在一起，安装于建筑的主体结构中。剪切与弯曲组合型分阶段屈服软钢阻尼器上部的L形侧钢板的顶部水平面部分通过高强螺栓与楼层的上梁相连，下部的L形侧钢板的底部水平面部分通过高强螺栓与楼层下部的主梁上设置的人字形钢支撑相连，支撑起到固定阻尼器的作用。当发生地震时，每个阻尼器中的两个L形侧钢板产生相对位移，小震时由于矩形软钢耗能组件屈服位移较小，很小位移时首先开始进行塑性变形耗能，这是第一阶段的耗能，可以耗散小震时地震能量；中震时圆形软钢耗能组件初始刚度较矩形软钢耗能组件小，耗能能力强且韧性好，属于剪弯型，进入中震时圆形软钢耗能组件逐步进入塑性耗能，与矩形软钢耗能组件共同耗能，同时起着很好的过渡作用，此为第二阶段屈服耗能；大震时由于X形软钢耗能钢片初始刚度小、屈服位移较大，属于弯曲型，大震时X形软钢耗能钢片开始屈服，与矩形软钢耗能组件与圆形软钢耗能组件共同耗能，耗散地震能量，此为第三阶段屈服耗能。实际使用中X形软钢耗能钢片的数量相对较多，可作为耗能储备在大震时消耗更多的能量，最终保护主体结构安全的目的。When the utility model adopts the support type to be installed in the building structure, as shown in Figure 7, several shear and bending combined type yield mild steel dampers in stages are combined together and installed in the main structure of the building. The top horizontal part of the upper L-shaped side steel plate of the combined shear and bending type mild steel damper is connected to the upper beam of the floor through high-strength bolts, and the bottom horizontal part of the lower L-shaped side steel plate is connected to the lower part of the floor through high-strength bolts. The herringbone steel supports set on the main beam are connected, and the supports act as fixed dampers. When an earthquake occurs, the two L-shaped side steel plates in each damper produce relative displacement. Due to the small yield displacement of the rectangular mild steel energy-dissipating component during a small earthquake, plastic deformation first begins to dissipate energy when the displacement is small, which is The energy dissipation in the first stage can dissipate the seismic energy during small earthquakes; the initial stiffness of the circular mild steel energy dissipation components is smaller than that of the rectangular mild steel energy dissipation components during moderate earthquakes, and the energy dissipation capacity is strong and the toughness is good. It belongs to the shear bending type. When entering a moderate earthquake, the circular mild steel energy-dissipating component gradually enters into plastic energy dissipation, dissipates energy together with the rectangular mild-steel energy-dissipating component, and plays a very good transitional role at the same time, which is the second stage yield energy dissipation; The X-shaped mild steel energy-dissipating steel sheet has a small initial rigidity and large yield displacement, and belongs to the bending type. The X-shaped mild steel energy-dissipating steel sheet begins to yield during a large earthquake, and it is the same as the rectangular mild steel energy-dissipating component and the circular mild steel energy-dissipating component. Common energy consumption, dissipation of seismic energy, this is the third stage yield energy consumption. In actual use, the number of X-shaped mild steel energy-dissipating steel sheets is relatively large, which can be used as energy-dissipating reserves to consume more energy during major earthquakes, and ultimately protect the safety of the main structure.
以上所述仅是本实用新型的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本实用新型的保护范围。The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696502A (en) * | 2013-12-09 | 2014-04-02 | 南京工业大学 | Shearing and bending combined type staged yield mild steel damper |
| CN106193360A (en) * | 2016-09-05 | 2016-12-07 | 南京工业大学 | Can overcome soft steel attenuator dismantled of membrane effect |
| CN107882202A (en) * | 2017-12-20 | 2018-04-06 | 河北工业大学 | Self-resetting mild steel damper and assembling work progress |
| CN110886403A (en) * | 2019-11-22 | 2020-03-17 | 山东彤创建筑科技有限公司 | Novel combined shearing bending damper |
| CN111173155A (en) * | 2020-01-07 | 2020-05-19 | 海南大学 | Shearing-bending parallel connection type graded energy dissipation damper |
| CN117966891A (en) * | 2024-02-05 | 2024-05-03 | 中国矿业大学 | Replaceable interlayer energy dissipation device of modularized steel structure |
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2013
- 2013-12-09 CN CN201320805046.1U patent/CN203613671U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696502A (en) * | 2013-12-09 | 2014-04-02 | 南京工业大学 | Shearing and bending combined type staged yield mild steel damper |
| CN106193360A (en) * | 2016-09-05 | 2016-12-07 | 南京工业大学 | Can overcome soft steel attenuator dismantled of membrane effect |
| CN107882202A (en) * | 2017-12-20 | 2018-04-06 | 河北工业大学 | Self-resetting mild steel damper and assembling work progress |
| CN107882202B (en) * | 2017-12-20 | 2024-09-03 | 河北工业大学 | Self-resetting mild steel damper and assembly construction process |
| CN110886403A (en) * | 2019-11-22 | 2020-03-17 | 山东彤创建筑科技有限公司 | Novel combined shearing bending damper |
| CN111173155A (en) * | 2020-01-07 | 2020-05-19 | 海南大学 | Shearing-bending parallel connection type graded energy dissipation damper |
| CN117966891A (en) * | 2024-02-05 | 2024-05-03 | 中国矿业大学 | Replaceable interlayer energy dissipation device of modularized steel structure |
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