CN206800174U - A kind of soft collision protector suitable for super earthquake intensity geological process - Google Patents
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Abstract
Description
技术领域technical field
本实用新型涉及建筑、桥梁隔震技术领域，尤其涉及一种适用于超烈度地震作用的软碰撞防护装置。The utility model relates to the technical field of building and bridge shock isolation, in particular to a soft collision protection device suitable for super-intensity earthquake action.
背景技术Background technique
隔震技术因其概念简单、效果显著、产品性能稳定，已成为目前使用最为广泛的减震手段之一，迄今为止，全世界数以千计的隔震建筑及桥梁采用了隔震技术。隔震结构通过延长结构周期(即较小的隔震层刚度)及增大结构阻尼，达到降低结构地震响应的目的，但隔震层水平位移较大。在长周期地震或超烈度地震作用下，隔震层水平位移极易超过限值，造成隔震支座破坏失效或隔震结构与周边结构的硬碰撞(硬碰撞对结构造成不利影响，甚至导致结构破坏失效)。Seismic isolation technology has become one of the most widely used shock-absorbing methods because of its simple concept, remarkable effect and stable product performance. So far, thousands of seismically isolated buildings and bridges around the world have adopted seismic isolation technology. Seismic isolation structures achieve the purpose of reducing the seismic response of the structure by prolonging the structural period (that is, the smaller stiffness of the isolation layer) and increasing the structural damping, but the horizontal displacement of the isolation layer is relatively large. Under the action of long-period earthquakes or super-intensity earthquakes, the horizontal displacement of the isolation layer can easily exceed the limit, resulting in failure of the isolation support or hard collision between the isolation structure and the surrounding structure (hard collisions have adverse effects on the structure, and even lead to failure of the structure).
为解决隔震层限位的问题，可在原有的隔震装置之外，设置不同类型的软碰撞防护装置，虽然现有的软碰撞防护装置可有效控制隔震层水平位移，但大多为单方向限位装置。此外，研究人员提出混合控制策略，采用隔震装置加上主动或半主动控制装置，如隔震装置与磁流变阻尼器混合等，虽然混合控制策略效果良好，但结构复杂，可靠性较低。因此，有必要研发一种可多方向限位且构造简单实用的软碰撞防护装置。In order to solve the problem of the limit of the seismic isolation layer, different types of soft collision protection devices can be installed in addition to the original seismic isolation devices. Although the existing soft collision protection devices can effectively control the horizontal displacement of the seismic isolation layer, most of them are single Direction limit device. In addition, the researchers proposed a hybrid control strategy, using a shock isolation device plus an active or semi-active control device, such as a combination of a shock isolation device and a magneto-rheological damper, etc. Although the hybrid control strategy works well, the structure is complex and the reliability is low . Therefore, it is necessary to develop a soft collision protection device capable of multi-directional positioning and having a simple and practical structure.
实用新型内容Utility model content
本实用新型的目的在于，提供一种结构简单可靠，又能够在任意方向有效限制隔震层过大水平位移的适用于超烈度地震作用的软碰撞防护装置，从而保护隔震支座及结构。The purpose of this utility model is to provide a soft collision protection device suitable for super-intensity earthquakes, which has a simple and reliable structure and can effectively limit the excessive horizontal displacement of the isolation layer in any direction, so as to protect the isolation support and structure.
本实用新型的目的通过以下技术方案实现：The purpose of this utility model is achieved through the following technical solutions:
一种适用于超烈度地震作用的软碰撞防护装置，包括U型阻尼器本体、下连接钢板、上连接钢板、钢剪力键及与该钢剪力键配合使用的中间设置有中孔的中空连接钢板，所述U型阻尼器本体包括若干对称设置的U型钢板，所述U型钢板的下端与下连接钢板连接，所述U型钢板的上端与上连接钢板连接，所述下连接钢板用于与建筑或桥梁的下部结构连接，中空连接钢板用于与建筑或桥梁的上部结构连接，所述钢剪力键设置在上连接钢板上，在组合状态下，所述钢剪力键的上端伸入所述中孔内一定长度，钢剪力键与中空连接钢板之间留有水平间距，钢剪力键顶表面与建筑或桥梁的上部结构的底表面之间，以及上连接钢板顶表面与中空连接钢板底表面之间预留一定高差。A soft collision protection device suitable for super-intensity earthquakes, comprising a U-shaped damper body, a lower connecting steel plate, an upper connecting steel plate, a steel shear key, and a hollow center with a middle hole used in conjunction with the steel shear key. The connecting steel plate, the U-shaped damper body includes several U-shaped steel plates arranged symmetrically, the lower end of the U-shaped steel plate is connected to the lower connecting steel plate, the upper end of the U-shaped steel plate is connected to the upper connecting steel plate, and the lower connecting steel plate It is used to connect with the lower structure of buildings or bridges. The hollow connecting steel plate is used to connect with the upper structure of buildings or bridges. The steel shear key is arranged on the upper connecting steel plate. In the combined state, the steel shear key The upper end extends into the middle hole for a certain length, and there is a horizontal distance between the steel shear key and the hollow connecting steel plate, between the top surface of the steel shear key and the bottom surface of the superstructure of the building or bridge, and the top of the connecting steel plate. A certain height difference is reserved between the surface and the bottom surface of the hollow connecting steel plate.
其中，所述U型钢板的下端与下连接钢板通过螺栓连接，所述U型钢板的上端与上连接钢板通过螺栓连接。Wherein, the lower end of the U-shaped steel plate is connected to the lower connecting steel plate by bolts, and the upper end of the U-shaped steel plate is connected to the upper connecting steel plate by bolts.
作为优选的，所述U型钢板采用偶数数量对称分布设置，一般为4个对称布置。Preferably, the U-shaped steel plates are symmetrically arranged in an even number, generally four symmetrically arranged.
其中，所述钢剪力键的下端与上连接钢板通过过盈配合连接或其它方式连接。Wherein, the lower end of the steel shear key is connected to the upper connecting steel plate through interference fit or other methods.
其中，所述水平间距等于预先设定的隔震层水平位移。Wherein, the horizontal distance is equal to the preset horizontal displacement of the shock-isolation layer.
作为优选的，所述钢剪力键呈圆柱状，所述中孔呈圆形。Preferably, the steel shear key is cylindrical, and the middle hole is circular.
一种适用于超烈度地震作用的软碰撞防护装置，包括U型阻尼器本体、下连接钢板、钢剪力键及与该钢剪力键配合使用的中间设置有中孔的中空连接钢板，所述U型阻尼器本体包括若干对称设置的U型钢板，所述U型钢板的下端与下连接钢板连接，所述U型钢板的上端与中间设置有中孔的中空连接钢板连接，下连接钢板用于与建筑或桥梁的下部结构连接，所述钢剪力键设置在建筑或桥梁的上部结构上，且钢剪力键的下端伸入所述中孔内一定长度，钢剪力键与中空连接钢板之间留有水平间距，建筑或桥梁的上部结构的底表面与中空连接钢板顶表面之间预留一定高差。A soft collision protection device suitable for super-intensity earthquakes, including a U-shaped damper body, a lower connecting steel plate, a steel shear key and a hollow connecting steel plate with a middle hole in the middle used in conjunction with the steel shear key. The U-shaped damper body includes several symmetrically arranged U-shaped steel plates, the lower end of the U-shaped steel plate is connected to the lower connecting steel plate, the upper end of the U-shaped steel plate is connected to the hollow connecting steel plate with a middle hole in the middle, and the lower connecting steel plate It is used to connect with the lower structure of the building or bridge. The steel shear key is arranged on the upper structure of the building or bridge, and the lower end of the steel shear key extends into the middle hole for a certain length. The steel shear key and the hollow A horizontal distance is reserved between the connecting steel plates, and a certain height difference is reserved between the bottom surface of the upper structure of the building or bridge and the top surface of the hollow connecting steel plates.
其中，所述U型钢板的下端与下连接钢板通过螺栓连接，所述U型钢板的上端与中空连接钢板通过螺栓连接。Wherein, the lower end of the U-shaped steel plate is connected to the lower connecting steel plate by bolts, and the upper end of the U-shaped steel plate is connected to the hollow connecting steel plate by bolts.
作为优选的，所述U型钢板采用偶数数量对称分布设置，一般为4个对称布置。Preferably, the U-shaped steel plates are symmetrically arranged in an even number, generally four symmetrically arranged.
其中，所述水平间距等于预先设定的隔震层水平位移。Wherein, the horizontal distance is equal to the preset horizontal displacement of the shock-isolation layer.
作为优选的，所述钢剪力键呈圆柱状，所述中孔呈圆形。Preferably, the steel shear key is cylindrical, and the middle hole is circular.
相对于现有技术，本实用新型的有益效果为：本实用新型的适用于超烈度地震作用的软碰撞防护装置，不承受竖向荷载，在设定的隔震层水平位移范围内，所述钢剪力键与中空连接钢板不发生碰撞，一旦任意方向的隔震层水平位移超过钢剪力键与中空连接钢板之间的水平间距时，该软碰撞防护装置即在水平方向起到限位作用，以减小隔震层水平位移，避免由于隔震层过大水平位移导致的隔震支座破坏失效，避免或缓解隔震结构与周边结构硬碰撞的不利影响；本实用新型能够适用于超烈度地震作用，对隔震层起到限位作用，从而对隔震支座及结构提供有效保护，结构简单明了，工作机理明确，力学性能优良，施工方便，震后维修简单易行。Compared with the prior art, the beneficial effects of the utility model are: the soft collision protection device of the utility model suitable for super-intensity earthquakes does not bear vertical loads, and within the set horizontal displacement range of the shock-isolation layer, the The steel shear key and the hollow connecting steel plate do not collide. Once the horizontal displacement of the isolation layer in any direction exceeds the horizontal distance between the steel shear key and the hollow connecting steel plate, the soft collision protection device will limit the position in the horizontal direction. function to reduce the horizontal displacement of the isolation layer, avoid the failure of the isolation support due to excessive horizontal displacement of the isolation layer, and avoid or alleviate the adverse effects of hard collision between the isolation structure and the surrounding structure; the utility model can be applied to The super-intensity earthquake acts as a limit for the isolation layer, thereby providing effective protection for the isolation support and structure. The structure is simple and clear, the working mechanism is clear, the mechanical properties are excellent, the construction is convenient, and the maintenance after the earthquake is simple and easy.
附图说明Description of drawings
图1为实施例1的适用于超烈度地震作用的软碰撞防护装置的结构示意图。Fig. 1 is a structural schematic diagram of the soft impact protection device suitable for super-intensity earthquake action according to embodiment 1.
图2为实施例1的适用于超烈度地震作用的软碰撞防护装置的俯视图。Fig. 2 is a top view of the soft impact protection device suitable for super-intensity earthquake action of embodiment 1.
图3为实施例1的适用于超烈度地震作用的软碰撞防护装置的组合示意图。Fig. 3 is a combined schematic view of the soft impact protection device suitable for super-intensity earthquakes in embodiment 1.
图4为实施例2的适用于超烈度地震作用的软碰撞防护装置的组合示意图。Fig. 4 is a combined schematic diagram of the soft impact protection device suitable for super-intensity earthquake action of embodiment 2.
图5为本实用新型的中空连接钢板的结构示意图。Fig. 5 is a structural schematic diagram of the hollow connecting steel plate of the present invention.
图6为实施例1的适用于超烈度地震作用的软碰撞防护装置的安装示意图。Fig. 6 is a schematic diagram of the installation of the soft impact protection device suitable for super-intensity earthquakes in Embodiment 1.
图7为实施例2的适用于超烈度地震作用的软碰撞防护装置的安装示意图。Fig. 7 is a schematic diagram of the installation of the soft impact protection device suitable for super-intensity earthquakes in Embodiment 2.
具体实施方式detailed description
以下结合附图及具体实施例对本实用新型进行详细描述。The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.
实施例1。Example 1.
如图1-3、5、6所示，本实施例提供一种适用于超烈度地震作用的软碰撞防护装置，包括U型阻尼器本体、下连接钢板2、上连接钢板3、钢剪力键5及与该钢剪力键5配合使用的中间设置有中孔8的中空连接钢板4，所述U型阻尼器本体包括若干对称设置的U型钢板1，所述U型钢板1的下端与下连接钢板2连接，所述U型钢板1的上端与上连接钢板3连接，所述下连接钢板2用于与建筑的下部结构7连接，中空连接钢板4用于与建筑的上部结构6连接，所述钢剪力键5设置在上连接钢板3上，在组合状态下，所述钢剪力键5的上端伸入所述中孔8内一定长度，钢剪力键5与中空连接钢板4之间留有水平间距，钢剪力键5顶表面与建筑的上部结构6的底表面之间，以及上连接钢板3顶表面与中空连接钢板4底表面之间预留一定高差。As shown in Figures 1-3, 5, and 6, this embodiment provides a soft collision protection device suitable for super-intensity earthquakes, including a U-shaped damper body, a lower connecting steel plate 2, an upper connecting steel plate 3, a steel shear force The key 5 and the hollow connecting steel plate 4 with a middle hole 8 used in conjunction with the steel shear key 5, the U-shaped damper body includes a number of symmetrically arranged U-shaped steel plates 1, and the lower end of the U-shaped steel plate 1 It is connected with the lower connecting steel plate 2, the upper end of the U-shaped steel plate 1 is connected with the upper connecting steel plate 3, the lower connecting steel plate 2 is used for connecting with the substructure 7 of the building, and the hollow connecting steel plate 4 is used for connecting with the upper structure 6 of the building connection, the steel shear key 5 is arranged on the upper connecting steel plate 3, and in the combined state, the upper end of the steel shear key 5 extends into the middle hole 8 for a certain length, and the steel shear key 5 is connected with the hollow There is a horizontal distance between the steel plates 4, and a certain height difference is reserved between the top surface of the steel shear key 5 and the bottom surface of the superstructure 6 of the building, and between the top surface of the upper connecting steel plate 3 and the bottom surface of the hollow connecting steel plate 4.
其中，所述U型钢板1的下端与下连接钢板2通过螺栓连接，所述U型钢板1的上端与上连接钢板3通过螺栓连接。Wherein, the lower end of the U-shaped steel plate 1 is connected to the lower connecting steel plate 2 by bolts, and the upper end of the U-shaped steel plate 1 is connected to the upper connecting steel plate 3 by bolts.
作为优选的，所述U型钢板1采用偶数数量对称分布设置，一般为4个对称布置，保证受力均衡。Preferably, the U-shaped steel plates 1 are symmetrically distributed in an even number, generally 4 symmetrically arranged, so as to ensure balanced force.
其中，所述钢剪力键5的下端与上连接钢板3通过过盈配合连接或其它方式连接。Wherein, the lower end of the steel shear key 5 is connected with the upper connecting steel plate 3 through interference fit connection or other methods.
所述钢剪力键5呈圆柱状，所述中孔8呈圆形。The steel shear key 5 is cylindrical, and the middle hole 8 is circular.
所述水平间距为中孔8的半径与钢剪力键5的半径的差值，一般大于设防地震时隔震层的水平位移，以尽量避免对常规隔震设计的影响。在隔震结构日常使用过程中、多遇地震、设防地震时，本装置均不需发挥作用，不影响常规隔震装置发挥隔震功能；当遭遇罕遇地震、超烈度地震作用时，任意方向的隔震层水平位移超过所述水平间距，钢剪力键5与中空连接钢板4发生碰撞，本装置发挥作用，U形阻尼器本体产生水平位移，为隔震层提供附加阻尼及刚度以限制隔震层水平位移；为确保本装置正常发挥作用，连接及钢剪力键5的破坏失效应发生在U形阻尼器本体的破坏失效之后；为起到一定的缓冲作用，可在钢剪力键5上端(凸出上连接钢板3顶表面的部分)的侧面或中孔8的侧面设置一层薄橡胶片。The horizontal spacing is the difference between the radius of the middle hole 8 and the radius of the steel shear key 5, which is generally greater than the horizontal displacement of the isolation layer during fortification earthquakes, so as to avoid the impact on the conventional isolation design as much as possible. During the daily use of the isolation structure, when there are frequent earthquakes and fortified earthquakes, the device does not need to play a role, and does not affect the isolation function of conventional isolation devices; when encountering rare earthquakes and super-intensity earthquakes, any direction If the horizontal displacement of the shock-isolation layer exceeds the horizontal distance, the steel shear key 5 collides with the hollow connecting steel plate 4, the device plays a role, and the U-shaped damper body produces a horizontal displacement, providing additional damping and stiffness for the shock-isolation layer to limit The horizontal displacement of the isolation layer; in order to ensure the normal function of the device, the failure of the connection and the failure of the steel shear key 5 should occur after the failure of the U-shaped damper body; A thin rubber sheet is set on the side of the key 5 upper end (the part that protrudes from the upper connecting plate 3 top surface) or the side of the middle hole 8.
所述水平间距可根据隔震设计需要进行人为调整，以确保遭遇超烈度地震作用时，本装置起到限位作用，在设定的隔震层水平位移范围内，本装置不需发挥作用，不影响常规隔震装置发挥隔震功能，当任意方向的隔震层水平位移超过所述水平间距时，钢剪力键5与中空连接钢板4发生碰撞，本装置将提供附加阻尼及刚度，与常规隔震装置一起工作，消耗地震输入能量，提高隔震层耗能能力，防止隔震层发生过大水平位移，避免由于隔震层过大水平位移导致的隔震支座破坏失效，避免或缓解隔震结构与周边结构硬碰撞的不利影响。The horizontal spacing can be manually adjusted according to the needs of the isolation design to ensure that the device acts as a limiter when encountering a super-intensity earthquake. Within the set horizontal displacement range of the isolation layer, the device does not need to function. It does not affect the isolation function of the conventional isolation device. When the horizontal displacement of the isolation layer in any direction exceeds the horizontal distance, the steel shear key 5 collides with the hollow connecting steel plate 4. This device will provide additional damping and stiffness, which is comparable to Conventional seismic isolation devices work together to consume the input energy of the earthquake, improve the energy dissipation capacity of the isolation layer, prevent excessive horizontal displacement of the isolation layer, avoid damage to the isolation support caused by excessive horizontal displacement of the isolation layer, and avoid or Mitigate the adverse effects of hard collision between the isolation structure and surrounding structures.
所述长度及高差可根据以下因素(包括但不限于以下因素)确定：荷载、徐变、温度及地震作用等所导致隔震支座的竖向变形；软碰撞防护装置上方梁的挠度；U型阻尼器本体的竖向变形。通过该长度保证钢剪力键5与中空连接钢板4发生碰撞时，钢剪力键5不脱出中孔8，本装置在水平方向正常发挥作用；通过该高差保证本装置在竖直方向不承受荷载(即所述高差始终大于零)。不同于常规建筑隔震结构的隔震支座通常布置在梁、柱节点下，本装置布置在隔震支座间的梁中部下方，为减小扭转作用对梁的不利影响，装置上方的梁应十字交叉布置。The length and height difference can be determined according to the following factors (including but not limited to the following factors): vertical deformation of the isolation support caused by load, creep, temperature and earthquake action; deflection of the beam above the soft collision protection device; Vertical deformation of the U-shaped damper body. This length ensures that when the steel shear key 5 collides with the hollow connecting steel plate 4, the steel shear key 5 will not break out of the middle hole 8, and the device will function normally in the horizontal direction; the height difference will ensure that the device will not move in the vertical direction. Bear the load (ie the height difference is always greater than zero). Different from the seismic isolation support of conventional building isolation structures, which are usually arranged under the joints of beams and columns, this device is arranged below the middle of the beam between the seismic isolation supports. In order to reduce the adverse effect of torsion on the beam, the beam above the device It should be arranged in a criss-cross pattern.
实施例2。Example 2.
如图4、5、7所示，本实施例提供一种适用于超烈度地震作用的软碰撞防护装置，包括U型阻尼器本体、下连接钢板2、钢剪力键5及与该钢剪力键配合使用的中间设置有中孔的中空连接钢板4，所述U型阻尼器本体包括若干对称设置的U型钢板1，所述U型钢板1的下端与下连接钢板2连接，所述U型钢板1的上端与中间设置有中孔8的中空连接钢板4连接，下连接钢板2用于与建筑的下部结构7连接，所述钢剪力键5设置在建筑的上部结构6上，且钢剪力键5的下端伸入所述中孔8内一定长度，钢剪力键5与中空连接钢板4之间留有水平间距，建筑的上部结构6的底表面与中空连接钢板4顶表面之间预留一定高差。As shown in Figures 4, 5, and 7, this embodiment provides a soft collision protection device suitable for super-intensity earthquakes, including a U-shaped damper body, a lower connecting steel plate 2, a steel shear key 5 and the steel shear key 5. A hollow connecting steel plate 4 with a middle hole is provided in the middle of the force key. The U-shaped damper body includes several U-shaped steel plates 1 arranged symmetrically. The lower end of the U-shaped steel plate 1 is connected to the lower connecting steel plate 2. The upper end of the U-shaped steel plate 1 is connected to the hollow connecting steel plate 4 provided with a middle hole 8, and the lower connecting steel plate 2 is used to connect with the substructure 7 of the building. The steel shear key 5 is arranged on the superstructure 6 of the building. And the lower end of the steel shear key 5 extends into the middle hole 8 for a certain length, there is a horizontal distance between the steel shear key 5 and the hollow connecting steel plate 4, and the bottom surface of the superstructure 6 of the building is connected to the top of the hollow connecting steel plate 4. A certain height difference is reserved between the surfaces.
本实施例与实施例1的区别在于，所述钢剪力键5设置在建筑的上部结构6上，具体的，所述钢剪力键5的上端可通过连接件及预埋件(图中未示出)与建筑的上部结构6连接，所述中空连接钢板4与U型钢板1的上端通过螺栓连接。本实施例的水平间距、长度及高差的确定原则同实施例1。本实施例的其它技术特征同实施例1，在此不再赘述。The difference between this embodiment and Embodiment 1 is that the steel shear key 5 is arranged on the superstructure 6 of the building. Specifically, the upper end of the steel shear key 5 can pass through the connecting piece and the embedded part (in the figure (not shown) is connected with the superstructure 6 of the building, and the upper end of the hollow connecting steel plate 4 and the U-shaped steel plate 1 is connected by bolts. The principles for determining the horizontal spacing, length and height difference in this embodiment are the same as those in Embodiment 1. Other technical features of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
所属领域的普通技术人员应当理解：以上任何实施例的讨论仅为示例性的，并非旨在暗示本公开的范围(包括权利要求)被限于这些例子；在本实用新型的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，并存在如上所述的本实用新型的不同方面的许多其它变化，为了简明它们没有在细节中提供。因此，凡在本实用新型的精神和原则之内，所做的任何省略、修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope of the present disclosure (including claims) is limited to these examples; under the idea of the present utility model, the above embodiments Or combinations of technical features in different embodiments are also possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, within the spirit and principle of the present utility model, any omission, modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present utility model.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106988207A (en) * | 2017-06-06 | 2017-07-28 | 广州大学 | A kind of soft collision protector suitable for super earthquake intensity geological process |
| CN110424250A (en) * | 2019-07-12 | 2019-11-08 | 东南大学 | It is a kind of actively to prevent beams of concrete collision system and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106988207A (en) * | 2017-06-06 | 2017-07-28 | 广州大学 | A kind of soft collision protector suitable for super earthquake intensity geological process |
| CN106988207B (en) * | 2017-06-06 | 2019-04-02 | 广州大学 | A kind of soft collision protective device suitable for super earthquake intensity geological process |
| CN110424250A (en) * | 2019-07-12 | 2019-11-08 | 东南大学 | It is a kind of actively to prevent beams of concrete collision system and its application method |
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