CN104453006A - Bolt-type shear-plate damper with clamp plates - Google Patents
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Abstract
本发明提供了一种螺栓式夹板剪切板阻尼器，属于结构工程领域，由耗能钢板组、夹板单元、连接板单元和开孔板单元四部分组成。所述耗能钢板组由至少1块耗能钢板组成；所述的耗能钢板呈矩形或两个角对接的双三角形或两侧去掉半椭圆弧形的矩形，其上边缘开至少2个椭圆孔，各耗能钢板平行排列；所述夹板单元包括至少1个截面为空心矩形的夹板子单元，每个耗能钢板被1个夹板子单元包围，二者同轴且留有间隙；所述的连接板单元由2块矩形连接钢板组成，上部矩形连接钢板通过开孔板单元与耗能钢板螺栓连接，下部矩形连接钢板与耗能钢板焊接。本发明具耗能钢板不易发生平面外屈曲、关键性能参数易于设计、承载力大、力学性能优越、生产工艺简便等优点。
The invention provides a bolt-type splint shear plate damper, which belongs to the field of structural engineering and consists of four parts: an energy-dissipating steel plate group, a splint unit, a connecting plate unit and a perforated plate unit. The energy-dissipating steel plate group is composed of at least one energy-dissipating steel plate; the energy-dissipating steel plate is in the shape of a rectangle or a double triangle with two corners butted, or a rectangle with semi-elliptical arcs removed on both sides, and at least two ellipses are opened on its upper edge Holes, each energy-dissipating steel plate is arranged in parallel; the splint unit includes at least one splint subunit with a hollow rectangular cross-section, each energy-dissipating steel plate is surrounded by a splint subunit, and the two are coaxial with a gap; the The connecting plate unit is composed of two rectangular connecting steel plates, the upper rectangular connecting steel plate is connected to the energy-dissipating steel plate by bolts through the perforated plate unit, and the lower rectangular connecting steel plate is welded to the energy-dissipating steel plate. The invention has the advantages that the energy-dissipating steel plate is not prone to out-of-plane buckling, the key performance parameters are easy to design, the bearing capacity is large, the mechanical performance is superior, and the production process is simple and convenient.
Description
技术领域technical field
本发明涉及一种螺栓式夹板剪切板阻尼器，属于结构工程领域。The invention relates to a bolt type splint shear plate damper, which belongs to the field of structural engineering.
背景技术Background technique
减轻和控制结构的振动一直是土木工程防灾减灾的主要任务，而被动耗能为这一问题的解决提供了有效的途径，耗能减震结构的核心器件——阻尼器的研究从上世纪70年代起迅猛的发展起来。其中，金属阻尼器以其稳定的滞回性能受到青睐。剪切板阻尼器是金属阻尼器的一种，利用钢板在平明内剪切屈服耗散能量，它可以为结构提供较大的刚度，并且制作简单，在日本、美国等国家应用广泛。Reducing and controlling the vibration of structures has always been the main task of disaster prevention and mitigation in civil engineering, and passive energy dissipation provides an effective way to solve this problem. It has developed rapidly since the 1970s. Among them, the metal damper is favored for its stable hysteresis performance. Shear plate damper is a kind of metal damper. It uses the shear yield of steel plate to dissipate energy in the plain. It can provide greater rigidity for the structure and is easy to manufacture. It is widely used in Japan, the United States and other countries.
然而，传统的剪切板阻尼器是将耗能钢板垂直焊接到上下两块水平连接板上，依靠上下两块水平连接板在水平方向的相对位移使耗能钢板发生平面内的剪切变形耗能能量。剪切板阻尼器虽然有很多优点，但也存在以下缺点。1.阻尼器的耗能钢板与上下两块水平连接板采用焊接连接，使其无法在纵向上自由移动，当耗能钢板发生剪切变形的同时会引起较大的薄膜张力，这样，达到相同角应变时需要更大的剪切力，容易造成与其连接的结构主体构件的破坏。2.当阻尼器的承载力较大时，耗能钢板的宽厚比很难设计的比较小，使得耗能钢板在水平位移下容易发生平面外的屈曲变形，从而使其承载力降低，耗能性能退化，并难以建立准确的本构模型。3.当剪切板阻尼器用于耗能连梁剪力墙结构时，要求阻尼器平面尺寸不能过大，而集中在耗能连梁的中部，以保证阻尼器以受剪为主，这会使得耗能钢板宽厚比过小而与连接板连接困难。为了改善剪切板阻尼器耗能钢板的平面外屈曲，可以在耗能钢板边缘及中心设置加劲肋，然而增设加劲肋后使得阻尼器的屈服力、承载力和初始刚度等关键参数难以估计，而使阻尼器设计困难，此外，加劲肋与耗能钢板采用焊接连接，而焊接不仅制作复杂还会过早的发生沿着焊缝的破坏，大大降低阻尼器的疲劳寿命。However, the traditional shear plate damper is to vertically weld the energy-dissipating steel plate to the upper and lower horizontal connecting plates, relying on the relative displacement of the upper and lower horizontal connecting plates in the horizontal direction to cause the energy-dissipating steel plate to undergo in-plane shear deformation can energy. Although the shear plate damper has many advantages, it also has the following disadvantages. 1. The energy-dissipating steel plate of the damper is welded to the upper and lower horizontal connecting plates, so that it cannot move freely in the longitudinal direction. When the energy-dissipating steel plate undergoes shear deformation, it will cause a large film tension. In this way, the same Angular strain requires greater shear force, which is likely to cause damage to the structural main components connected to it. 2. When the load-bearing capacity of the damper is large, it is difficult to design the width-thickness ratio of the energy-dissipating steel plate to be relatively small, so that the energy-dissipating steel plate is prone to out-of-plane buckling deformation under horizontal displacement, thereby reducing its bearing capacity and dissipating energy. Performance degradation, and it is difficult to establish an accurate constitutive model. 3. When the shear plate damper is used in the energy-dissipating coupling beam shear wall structure, it is required that the plane size of the damper should not be too large, and it should be concentrated in the middle of the energy-dissipating coupling beam to ensure that the damper is mainly subjected to shear, which will The width-to-thickness ratio of the energy-dissipating steel plate is too small, making it difficult to connect with the connecting plate. In order to improve the out-of-plane buckling of the energy-dissipating steel plate of the shear plate damper, stiffeners can be set on the edge and center of the energy-dissipating steel plate. However, the addition of stiffeners makes it difficult to estimate the key parameters of the damper, such as yield force, bearing capacity, and initial stiffness. This makes the design of the damper difficult. In addition, the stiffener and the energy-dissipating steel plate are connected by welding, and the welding is not only complicated to make, but also prematurely damaged along the weld, which greatly reduces the fatigue life of the damper.
因此，开发一种不仅可以有效消除薄膜应力，还可以抑制耗能钢板平面外屈曲，滞回性能稳定、结构简单的新型剪切板阻尼器，对于减小结构在地震下的振动响应，防止结构主体构件破坏具有重要的实际意义。Therefore, the development of a new type of shear plate damper, which can not only effectively eliminate the membrane stress, but also restrain the out-of-plane buckling of the energy-dissipating steel plate, has stable hysteretic performance and simple structure, will help reduce the vibration response of the structure under earthquakes and prevent the structural The failure of main components has important practical significance.
发明内容Contents of the invention
本发明的目的是提供一种螺栓式夹板剪切板阻尼器，解决已有剪切板阻尼器在变形过程中产生较大薄膜应力，容易发生平面外失稳、滞回性能不稳定、参数难以设计、生产成本高、难以批量化生产，且难以应用于耗能连梁剪切墙结构等问题。The purpose of the present invention is to provide a bolt-type splint shear plate damper, which solves the problem that the existing shear plate damper produces large film stress during deformation, is prone to out-of-plane instability, unstable hysteretic performance, and difficult parameters. Design and production costs are high, it is difficult to mass-produce, and it is difficult to apply to problems such as energy-consuming coupling beam shear wall structures.
为实现上述目的，本发明技术方案如下：一种螺栓式夹板剪切板阻尼器包括耗能钢板组1、夹板单元2、连接板单元3和开孔板单元4，所述的耗能钢板组1由至少一块耗能钢板1-1组成，耗能钢板1-1平行排列，相互之间不连接；所述耗能钢板1-1的上边缘有至少两个椭圆孔，椭圆孔的长轴沿竖直方向；所述的夹板单元2包括至少一个截面为空心矩形的夹板子单元2-1，每个夹板子单元2-1包围一个耗能钢板1-1，且与所包围的耗能钢板1-1同轴；所述的连接板单元3由上部矩形连接钢板3-1和下部矩形连接钢板3-2组成；所述开孔板单元4由至少两块形状相同的开孔板4-1组成，开孔板4-1沿水平方向开有至少两个椭圆孔，椭圆孔的长轴沿竖直方向；所述开孔板4-1的数目比耗能钢板1-1的数目多1个，开孔板4-1上椭圆孔的数目与耗能钢板1-1上椭圆孔的数目相等，且位置重合；所述开孔板4-1与上部连接板3-1焊接，相邻开孔板4-1之间的距离等于耗能钢板1-1的厚度；所述下部连接板3-2与耗能钢板1-1垂直焊接，耗能钢板1-1之间的距离等于开孔板4-1的厚度；所述耗能钢板1-1插入开孔板4-1之间的间隙中，耗能钢板1-1的椭圆孔与开孔板4-1的椭圆孔对齐，通过螺栓将开孔板4-1与耗能钢板1-1连接。In order to achieve the above object, the technical solution of the present invention is as follows: a bolt-type splint shear plate damper includes an energy-dissipating steel plate group 1, a splint unit 2, a connecting plate unit 3 and a perforated plate unit 4, and the energy-dissipating steel plate group 1 consists of at least one energy-dissipating steel plate 1-1, the energy-dissipating steel plates 1-1 are arranged in parallel and are not connected to each other; the upper edge of the energy-dissipating steel plate 1-1 has at least two elliptical holes, and the major axis of the elliptical hole Along the vertical direction; the splint unit 2 includes at least one splint subunit 2-1 with a hollow rectangular section, each splint subunit 2-1 surrounds an energy-dissipating steel plate 1-1, and is connected to the enclosed energy-dissipating The steel plates 1-1 are coaxial; the connecting plate unit 3 is composed of an upper rectangular connecting steel plate 3-1 and a lower rectangular connecting steel plate 3-2; the perforated plate unit 4 consists of at least two perforated plates 4 of the same shape -1 composition, the perforated plate 4-1 has at least two elliptical holes along the horizontal direction, and the major axis of the elliptical holes is along the vertical direction; the number of the perforated plates 4-1 is greater than the number of energy-consuming steel plates 1-1 One more, the number of oval holes on the perforated plate 4-1 is equal to the number of oval holes on the energy-dissipating steel plate 1-1, and the positions coincide; the perforated plate 4-1 is welded to the upper connecting plate 3-1, The distance between adjacent perforated plates 4-1 is equal to the thickness of the energy-dissipating steel plates 1-1; the lower connecting plate 3-2 is vertically welded to the energy-dissipating steel plates 1-1, and the distance between the energy-dissipating steel plates 1-1 Equal to the thickness of the perforated plate 4-1; the energy-dissipating steel plate 1-1 is inserted into the gap between the perforated plates 4-1, the elliptical hole of the energy-dissipating steel plate 1-1 and the elliptical hole of the perforated plate 4-1 Align, and connect the perforated plate 4-1 with the energy-dissipating steel plate 1-1 by bolts.
所述的夹板子单元2-1空心矩形内边缘水平方向尺寸比耗能钢板1-1大100～300mm，空心矩形竖直方向尺寸比耗能钢板1-1小10～80mm，在耗能钢板1-1厚度方向上夹板子单元2-1空心矩形内边缘与耗能钢板1-1之间的间隙为1～3mm。The horizontal dimension of the inner edge of the hollow rectangle of the splint subunit 2-1 is 100-300 mm larger than that of the energy-dissipating steel plate 1-1, and the vertical dimension of the hollow rectangle is 10-80 mm smaller than that of the energy-dissipating steel plate 1-1. 1-1 The gap between the hollow rectangular inner edge of the splint subunit 2-1 and the energy-dissipating steel plate 1-1 in the thickness direction is 1-3 mm.
所述夹板子单元2-1由2块盖板和2块垫板组成，盖板平行于耗能钢板1-1的平面，垫板平行于耗能钢板1-1的厚度方向；当耗能钢板1-1的数量多于1个时，其夹板单元2的相邻夹板子单元2-1间共用同1块盖板；各侧的垫板通过螺栓或焊接与盖板连接，形成夹板单元2。The splint subunit 2-1 is composed of 2 cover plates and 2 backing plates, the cover plate is parallel to the plane of the energy-dissipating steel plate 1-1, and the backing plate is parallel to the thickness direction of the energy-dissipating steel plate 1-1; when the energy-dissipating When the number of steel plates 1-1 is more than one, the adjacent splint subunits 2-1 of the splint unit 2 share the same cover plate; the backing plates on each side are connected to the cover plate by bolts or welding to form a splint unit 2.
所述的耗能钢板1-1采用低屈服点钢或其他高延性钢制作，其形状为矩形、两个角对接的双三角形或两侧去掉半椭圆弧形的矩形。The energy-dissipating steel plate 1-1 is made of low-yield-point steel or other high-ductility steel, and its shape is a rectangle, a double triangle with two butted corners, or a rectangle with semi-elliptical arcs removed on both sides.
所述的夹板单元采用全钢、混凝土或钢-混凝土制成。The splint unit is made of all steel, concrete or steel-concrete.
本发明的效果和益处是：一种螺栓式夹板剪切板阻尼器，耗能钢板在水平方向固定，竖直方向上可以自由移动，从而有效消除了薄膜应力。一种螺栓式夹板剪切板阻尼器，在耗能钢板上焊接较少，从而避免了由于焊接引起的阻尼器疲劳寿命的降低。一种螺栓式夹板剪切板阻尼器，多块并列的耗能钢板，解决了一块耗能钢板因厚度过大而难于连接板连接的问题，使其结构简单，易于加工，可以实现工业化批量生产，并且适用于耗能连梁剪力墙结构。一种螺栓式夹板剪切板阻尼器，其耗能钢板为变截面，使截面受力均匀，从而有效提高阻尼器的疲劳寿命。一种螺栓式夹板剪切板阻尼器，在各块耗能钢板外部均设置夹板单元，二者之间留有间隙，分开受力，夹板单元可以有效的防止耗能钢板平面外屈曲，当耗能钢板较薄时也可以有较高的延性和滞回性能，同时也可以降低阻尼器的成本。The effect and benefit of the present invention are: a bolt-type splint shear plate damper, the energy-dissipating steel plate is fixed in the horizontal direction and can move freely in the vertical direction, thereby effectively eliminating the film stress. A bolt-type splint shear plate damper with less welding on the energy-dissipating steel plate, thereby avoiding the reduction of the fatigue life of the damper due to welding. A bolt-type splint shear plate damper, multiple parallel energy-dissipating steel plates, solves the problem that one energy-dissipating steel plate is difficult to connect due to its excessive thickness, making it simple in structure, easy to process, and capable of industrialized mass production , and is suitable for energy-dissipating coupled-beam shear wall structures. The utility model relates to a bolt-type splint shear plate damper, the energy-dissipating steel plate of which has a variable cross-section, so that the stress on the cross-section is uniform, thereby effectively improving the fatigue life of the damper. A bolt-type splint shear plate damper. A splint unit is arranged outside each energy-dissipating steel plate. There is a gap between the two, and the force is separated. The splint unit can effectively prevent the out-of-plane buckling of the energy-dissipating steel plate. It can also have higher ductility and hysteresis performance when the steel plate is thinner, and it can also reduce the cost of the damper.
附图说明Description of drawings
图1为本发明的一种螺栓式夹板剪切板阻尼器三维示意图。Fig. 1 is a three-dimensional schematic diagram of a bolted splint shear plate damper of the present invention.
图2为本发明的一种螺栓式夹板剪切板阻尼器A-A截面示意图。Fig. 2 is a cross-sectional schematic diagram of A-A of a bolted splint shear plate damper of the present invention.
图3为本发明的一种螺栓式夹板剪切板阻尼器耗能钢板的三维示意图。Fig. 3 is a three-dimensional schematic diagram of an energy-dissipating steel plate of a bolted splint shear plate damper according to the present invention.
图4为本发明的一种螺栓式夹板剪切板阻尼器开孔板单元与上部矩形连接钢板的关系图。Fig. 4 is a relationship diagram between the perforated plate unit and the upper rectangular connecting steel plate of a bolted splint shear plate damper of the present invention.
图5为本发明的一种螺栓式夹板剪切板阻尼器耗能钢板与开孔单元及连接板单元的关系图。Fig. 5 is a diagram of the relationship between the energy-dissipating steel plate, the opening unit and the connecting plate unit of a bolted splint shear plate damper according to the present invention.
图中：1 耗能钢板组；2 夹板单元；3 连接板单元；4 开孔板单元；In the figure: 1 energy-dissipating steel plate group; 2 splint unit; 3 connection plate unit; 4 perforated plate unit;
1-1 耗能钢板；2-1 夹板子单元；3-1 上部矩形连接钢板；1-1 energy-dissipating steel plate; 2-1 splint subunit; 3-1 upper rectangular connecting steel plate;
1-2 3-2下部矩形连接钢板；4-1 开孔板。1-2 3-2 lower rectangular connecting steel plate; 4-1 perforated plate.
具体实施方式Detailed ways
以下结合技术方案和附图详细叙述本发明的具体实施方式。The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.
本发明的具体实施方式参见图1至图5。本实施例包括4部分，耗能钢板组1、夹板单元2、连接板单元3和开孔板单元4，如图1所示。耗能钢板组1包括2块耗能钢板1-1，夹板单元2包括2个夹板子单元2-1，如图2所示。Refer to Fig. 1 to Fig. 5 for a specific embodiment of the present invention. This embodiment includes 4 parts, energy dissipation steel plate group 1, splint unit 2, connection plate unit 3 and perforated plate unit 4, as shown in FIG. 1 . The energy-dissipating steel plate group 1 includes two energy-dissipating steel plates 1-1, and the splint unit 2 includes two splint subunits 2-1, as shown in FIG. 2 .
所述夹板子单元2-1呈空心矩形，空心矩形与所包围的耗能钢板1-1同轴；在耗能钢板1-1的厚度方向，夹板子单元2-1内边缘与耗能钢板1-1留有2mm间隙；夹板子单元2-1空心矩形的竖直方向尺寸比耗能钢板1-1小10mm，夹板子单元2-1空心矩形内边缘水平方向尺寸比耗能钢板大200mm，如图1和图2所示。The splint subunit 2-1 is in the shape of a hollow rectangle, which is coaxial with the energy-dissipating steel plate 1-1 surrounded by it; 1-1 leaves a gap of 2mm; the vertical dimension of the hollow rectangle of the plywood subunit 2-1 is 10mm smaller than that of the energy-dissipating steel plate 1-1, and the horizontal dimension of the inner edge of the hollow rectangle of the plywood subunit 2-1 is 200mm larger than that of the energy-dissipating steel plate , as shown in Figure 1 and Figure 2.
所述夹板子单元2-1由2块盖板和2块垫板组成，2个夹板子单元2-1共用一块盖板，如图2所示。The splint subunit 2-1 is composed of 2 cover plates and 2 backing plates, and the 2 splint subunits 2-1 share one cover plate, as shown in FIG. 2 .
所述耗能钢板1-1为两侧去掉半椭圆弧形的矩形，上边缘沿水平方向开4个椭圆孔，椭圆孔的长轴方向沿竖直方向，如图3所示。The energy-dissipating steel plate 1-1 is a rectangle with semi-elliptical arcs removed on both sides, four elliptical holes are opened on the upper edge along the horizontal direction, and the long axis direction of the elliptical holes is along the vertical direction, as shown in FIG. 3 .
所述的连接板单元3包括上部矩形连接钢板3-1和下部矩形连接板3-2；所述的开孔板单元4包括3块开孔板4-1，开孔板4-1上与耗能钢板1-1椭圆孔相对应的位置上开有形状和数量相同的椭圆孔；将开孔板4-1垂直焊接到上部连接板3-1上，以上部连接板3-1中心为轴对称排布，相邻开孔板4-1之间的间隙大小为耗能钢板1-1的厚度，如图4所示。Described connecting plate unit 3 comprises upper rectangular connecting plate 3-1 and lower rectangular connecting plate 3-2; Described perforated plate unit 4 comprises 3 perforated plates 4-1, on perforated plate 4-1 and There are elliptical holes of the same shape and number on the positions corresponding to the elliptical holes in the energy-dissipating steel plate 1-1; the perforated plate 4-1 is vertically welded to the upper connecting plate 3-1, and the center of the upper connecting plate 3-1 is Arranged axially symmetrically, the size of the gap between adjacent perforated plates 4-1 is the thickness of the energy-dissipating steel plate 1-1, as shown in FIG. 4 .
将2块耗能钢板1-1垂直焊接到下部矩形连接钢板3-2上，以下部矩形连接钢板3-2中心为轴对称排布，2块耗能钢板1-1之间间隙大小为开孔板4-1的厚度；将耗能钢板1-1与插入开孔板4-1之间的间隙中，使耗能钢板1-1的椭圆孔与开孔板4-1的椭圆孔对齐，将螺栓插入椭圆孔中将耗能钢板1-1与开孔板4-1连接固定，如图5所示。Weld two energy-dissipating steel plates 1-1 vertically to the lower rectangular connecting steel plate 3-2, and arrange them symmetrically with the center of the lower rectangular connecting steel plate 3-2, and the gap between the two energy-consuming steel plates 1-1 is The thickness of the orifice plate 4-1; insert the energy-dissipating steel plate 1-1 into the gap between the perforated plate 4-1, so that the oval hole of the energy-dissipating steel plate 1-1 is aligned with the oval hole of the perforated plate 4-1 , insert the bolts into the oval holes to connect and fix the energy-dissipating steel plate 1-1 with the perforated plate 4-1, as shown in FIG. 5 .
Claims (5)
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| CN110701243A (en) * | 2019-07-12 | 2020-01-17 | 江苏科技大学 | A detachable friction-bending composite metal damper |
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