CN107060126A - It is a kind of that the system for carrying out structural damping is slid using floor - Google Patents
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Abstract
本发明提供一种在结构遭遇罕遇地震作用下，利用楼板滑移进行结构减震的系统，包括减震层楼板、摩擦减震层以及弹性缓冲装置；所述摩擦减震层铺设在所述摩擦减震层楼板的下方，与摩擦减震层框架梁、框架柱整浇在一起；减震层楼板同柱身、圈梁交接处安装所述弹性缓冲装置。减震层楼板是主体结构的一部分，将其转化为减震质量，避免了在主体结构上附加过大的质量，而且较易实现，消除了因将几百吨甚至上千吨的质量块附加在结构上而增大结构竖向承载负担的可能；底层铺设摩擦减震层可为减震层楼板提供可靠的摩擦力，施工简便，容易实施；通过设计合理的弹性缓冲装置，可避免减震层楼板在滑移过程中与主体结构发生碰撞。
The invention provides a system for structural damping by using floor slippage when the structure encounters a rare earthquake, including a damping layer floor, a frictional damping layer and an elastic buffer device; the frictional damping layer is laid on the The lower part of the floor slab of the friction damping layer is integrally poured together with the frame beam and frame column of the friction damping layer; the elastic buffer device is installed at the junction of the floor slab of the damping layer, the column body and the ring beam. The shock-absorbing floor is a part of the main structure, which can be converted into a shock-absorbing mass, which avoids adding too much mass to the main structure, and is easier to implement, eliminating the need to add hundreds of tons or even thousands of tons of mass blocks. Structurally, the possibility of increasing the vertical bearing load of the structure; laying a friction damping layer on the bottom layer can provide reliable friction for the damping layer floor, and the construction is simple and easy to implement; through the design of a reasonable elastic buffer device, shock absorption can be avoided The first floor slab collides with the main structure during the sliding process.
Description
技术领域technical field
本发明涉及一种利用楼板滑移进行结构减震的系统，属于建筑工程领域。The invention relates to a system for structural damping by using floor slippage, which belongs to the field of construction engineering.
背景技术Background technique
调谐质量阻尼器(Tuned Mass Damper,简称TMD)是一种离散型阻尼装置，也称作主动质量阻尼器或谐波减震器，已被广泛用于高层建筑、高耸结构以及桥梁的风振控制。这种装置是在主体结构上附加一定的子结构系统，并通过调整子结构参数，使其自振频率尽量接近主结构的基本频率或激振频率，当主体结构受激励而振动时，子结构将产生一个与结构振动方向相反的惯性力作用在主体结构上，使主体结构的振动衰减并受到控制，防止结构的损坏和失效。A tuned mass damper (Tuned Mass Damper, TMD for short) is a discrete damping device, also known as an active mass damper or a harmonic damper, which has been widely used in wind vibration control of high-rise buildings, towering structures and bridges. . This kind of device is to add a certain substructure system to the main structure, and adjust the parameters of the substructure to make its natural frequency as close as possible to the fundamental frequency or excitation frequency of the main structure. When the main structure is excited and vibrates, the substructure An inertial force opposite to the vibration direction of the structure will be generated to act on the main structure, so that the vibration of the main structure is attenuated and controlled to prevent damage and failure of the structure.
在现有的TMD装置中往往需要在结构主体上附加很大的质量(一般要达到主体结构质量的5％以上)才能产生可观的减震效果，这带来了很多问题。首先，几百吨甚至上千吨的质量块附加在结构上，会导致结构竖向承载负担大大增加；其次，为避免子结构与主体结构相对位移过大而产生的碰撞，需要在两者之间安装大吨位的阻尼器和限位装置，成本高，构造复杂；最后，由于附加TMD减震系统的复杂性，其建造成本偏高。因此，TMD装置更多的应用于高层结构的抗风减振，而实现降低地震作用的目的还有很多技术难题。In the existing TMD devices, it is often necessary to add a large mass (generally reaching more than 5% of the mass of the main structure) to the main body of the structure in order to produce a considerable damping effect, which brings many problems. First, mass blocks of hundreds of tons or even thousands of tons are added to the structure, which will greatly increase the vertical bearing load of the structure; Installing a large-tonnage damper and a limit device between them has high cost and complicated structure; finally, due to the complexity of the additional TMD damping system, its construction cost is relatively high. Therefore, TMD devices are more used in wind resistance and vibration reduction of high-rise structures, but there are still many technical difficulties in achieving the purpose of reducing earthquake effects.
发明内容Contents of the invention
针对现有TMD技术存在的问题，本发明提供了一种利用楼板滑移进行结构减震的系统。Aiming at the problems existing in the existing TMD technology, the present invention provides a system for structural damping by utilizing floor slippage.
本发明是这样实现的，一种利用楼板滑移进行结构减震的系统，所述利用楼板滑移进行结构减振的系统包括：减震层楼板、摩擦减震层以及弹性缓冲装置；所述摩擦减震层铺设在所述减震层楼板的下方。所述减震层楼板同柱身、圈梁交接处留有适当的宽度，用于安装所述弹性缓冲装置。The present invention is achieved in this way, a system for structural vibration reduction using floor slippage, said system for structural vibration reduction using floor slippage includes: a shock-absorbing layer floor, a frictional shock-absorbing layer, and an elastic buffer device; The friction shock-absorbing layer is laid under the floor slab of the shock-absorbing layer. An appropriate width is left at the intersection of the shock-absorbing floor with the column body and the ring beam for the installation of the elastic buffer device.
进一步，所述弹性缓冲装置可使用粘弹性消能减震装置，其厚度同所述减震层楼板相同，其刚度及阻尼特性需要根据具体结构计算分析得到。在防止所述减震层楼板与主体结构发生碰撞的同时起到耗散部分地震能量的作用。Further, the elastic buffer device can use a viscoelastic energy dissipation shock absorber, the thickness of which is the same as that of the shock absorbing floor, and its stiffness and damping characteristics need to be calculated and analyzed according to the specific structure. While preventing the shock-absorbing floor from colliding with the main structure, it plays the role of dissipating part of the seismic energy.
进一步，所述摩擦减震层选用高摩擦系数材料(摩擦系数大于0.5)，以保证其可为所述减震层楼板提供足够的摩阻力。摩擦系数的具体数值应依据具体结构分析确定。Further, the friction and shock absorbing layer is made of high friction coefficient material (friction coefficient greater than 0.5) to ensure that it can provide sufficient frictional resistance for the shock absorbing layer floor. The specific value of the friction coefficient should be determined according to the specific structural analysis.
进一步，所述摩擦减震层与减震层框架梁、框架柱整浇在一起。保证其在地震作用下不发生滑移。Further, the friction damping layer is integrally cast together with the shock absorbing layer frame beams and frame columns. Ensure that it does not slip under earthquake action.
进一步，减震层中柱的端部和框架梁的箍筋需要进行加密，以保证他们的刚度符合要求。Further, the ends of the columns in the shock-absorbing layer and the stirrups of the frame beams need to be densified to ensure their rigidity meets the requirements.
进一步，所述减震层楼板为可滑移结构。当建筑结构在地震荷载荷载作用下产生振动时，减震层楼板发生滑移产生一个与结构振动方向相反的惯性力反作用在主体结构上，调谐这个因结构振动而产生的惯性力，对建筑结构的振动产生调谐作用，使主体结构的振动衰减并受到控制，从而达到防止结构损坏和失效的目的。Further, the shock-absorbing floor is a slidable structure. When the building structure vibrates under the action of the earthquake load, the floor of the shock-absorbing floor slips to produce an inertial force that is opposite to the vibration direction of the structure to react on the main structure. Tuning the inertial force generated by the structural vibration has a significant impact on the building structure. The vibration of the vibration produces a tuning effect, so that the vibration of the main structure is attenuated and controlled, so as to achieve the purpose of preventing structural damage and failure.
进一步，通过对新型TMD减震系统参数的优化分析，确定新型TMD减震系统的阻尼系数、刚度系数等重要参数以及减震层的设置位置和个数，以实现赋予高层建筑、超高层建筑良好的抗振性能。Further, through the optimized analysis of the parameters of the new TMD damping system, the important parameters such as the damping coefficient and stiffness coefficient of the new TMD damping system, as well as the setting position and number of shock absorbing layers are determined, so as to give high-rise buildings and super high-rise buildings good performance. anti-vibration performance.
本发明的优点及积极效果为：Advantage of the present invention and positive effect are:
减震层楼板是主体结构的一部分，将其转化为减震质量，避免了在主体结构上附加过大的质量，而且较易实现，消除了因将几百吨甚至上千吨的质量块附加在结构上而增大结构竖向承载负担的可能；底层铺设摩擦减震层可为减震层楼板提供可靠的摩擦力，施工简便，容易实施；通过设计合理的弹性缓冲装置，可避免减震层楼板在滑移过程中与主体结构发生碰撞；本发明所述的减震系统构造简单，充分利用了结构自身的重量进行减震，利用楼板分层提供摩阻力，方便易行，其建造成本相对现有的TMD技术将大大降低。The floor of the shock-absorbing floor is a part of the main structure, and it is converted into a shock-absorbing mass, which avoids adding too much mass to the main structure, and is easier to implement, eliminating the need to add hundreds of tons or even thousands of tons of mass blocks. Structurally, the possibility of increasing the vertical bearing load of the structure; laying the friction damping layer on the bottom layer can provide reliable friction for the damping layer floor, and the construction is simple and easy to implement; through the design of a reasonable elastic buffer device, shock absorption can be avoided The floor slab collides with the main structure during the sliding process; the shock absorption system of the present invention has a simple structure, fully utilizes the weight of the structure itself for shock absorption, and uses floor slabs to provide frictional resistance, which is convenient and easy, and its construction cost Compared with the existing TMD technology, it will be greatly reduced.
附图说明Description of drawings
图1是本发明实施例提供的利用楼板滑移进行结构减震的系统剖面图；Figure 1 is a cross-sectional view of a system for structural shock absorption using floor slip provided by an embodiment of the present invention;
图2是本发明实施例提供的减震层示意图；Fig. 2 is a schematic diagram of a shock-absorbing layer provided by an embodiment of the present invention;
图3是本发明实施例提供的减震层俯视图；Fig. 3 is a top view of the shock-absorbing layer provided by the embodiment of the present invention;
图4是本发明实施例提供的减震层主视图；Fig. 4 is a front view of the shock-absorbing layer provided by the embodiment of the present invention;
图5是本发明实施例提供的减震层节点示意图；；Fig. 5 is a schematic diagram of the node of the damping layer provided by the embodiment of the present invention;
图6是本发明实施例提供的减震层边节点示意图；Fig. 6 is a schematic diagram of the edge nodes of the damping layer provided by the embodiment of the present invention;
图中：1、减震层楼板；2、摩擦减震层；3、弹性缓冲装置；4、减震层；5、整浇层。In the figure: 1, the shock-absorbing layer floor; 2, the friction shock-absorbing layer; 3, the elastic buffer device; 4, the shock-absorbing layer; 5, the pouring layer.
具体实施方式detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
下面结合附图对本发明的应用原理作详细描述：The application principle of the present invention is described in detail below in conjunction with accompanying drawing:
如图1所示，为本发明实施例提供的利用楼板滑移进行结构减震的系统剖面图，减震层4设置在整浇层5中间，减震层4设置的个数和具体位置需要通过具体分析得到。As shown in Figure 1, it is a sectional view of a system for utilizing floor slippage for structural shock absorption provided by the embodiment of the present invention. The shock absorbing layer 4 is arranged in the middle of the pouring layer 5. obtained through specific analysis.
如图2所示，本发明实施例提供的利用楼板滑移进行结构减震的系统包括：减震层楼板1、摩擦减震层2和弹性缓冲区3；所述摩擦减震层2铺设在所述减震层楼板1的下方；所述减震层楼板1同柱身、框架梁交接处留有适当的宽度，用于安转所述弹性缓冲装置3。As shown in FIG. 2 , the system for structural damping using floor slippage provided by the embodiment of the present invention includes: a damping layer floor 1, a frictional damping layer 2 and an elastic buffer zone 3; the frictional damping layer 2 is laid on Below the shock-absorbing floor 1 ; there is an appropriate width at the intersection of the shock-absorbing floor 1 with the column body and the frame beam, which is used to install and rotate the elastic buffer device 3 .
所述减震层楼板1为可滑移结构。The shock-absorbing floor slab 1 is a slidable structure.
所述摩擦减震层2选用高摩擦系数材料，与减震层的框架梁、框架柱整浇在一起。The friction damping layer 2 is made of high friction coefficient material, and is integrally poured together with the frame beams and frame columns of the damping layer.
所述弹性缓冲装置3的厚度同所述减震层楼板1相同。The thickness of the elastic buffer device 3 is the same as that of the shock-absorbing floor 1 .
下面结合具体实施例对本发明的应用原理作进一步描述；The application principle of the present invention will be further described below in conjunction with specific embodiments;
本发明实施例提供的利用楼板滑移进行结构减震的系统中，通过设置摩擦减震层2和弹性缓冲区，与减震层楼板1一同组成了一种新型的TMD减震系统。其中，减震层楼板1为这种新型的TMD减震系统提供质量，摩擦减震层2为其提供阻尼，弹性缓冲装置3提供刚度和部分阻尼。In the system for structural shock absorption using floor slippage provided by the embodiment of the present invention, a new type of TMD shock absorbing system is formed together with the shock absorbing floor 1 by setting the friction shock absorbing layer 2 and the elastic buffer zone. Among them, the shock-absorbing layer floor 1 provides mass for this new type of TMD shock-absorbing system, the friction shock-absorbing layer 2 provides its damping, and the elastic buffer device 3 provides stiffness and partial damping.
其中弹性缓冲装置3可使用粘弹性消能减震装置，其厚度同所述减震层楼板1相同，其刚度和阻尼特性需要根据具体结构计算分析得到。在防止减震层楼板与主体结构发生碰撞的同时起到耗散部分地震能量的作用。Wherein the elastic buffer device 3 can use a viscoelastic energy dissipation shock absorbing device, its thickness is the same as that of the shock absorbing floor 1, and its stiffness and damping characteristics need to be calculated and analyzed according to the specific structure. While preventing the shock-absorbing floor from colliding with the main structure, it plays the role of dissipating part of the seismic energy.
摩擦减震层2选用高摩擦系数材料(摩擦系数大于0.5)，以保证其可为减震层楼板提供足够的摩阻力，摩擦系数的具体数值应依据具体结构分析确定。并且将摩擦减震层2与同层框架梁、框架柱整浇在一起。保证其在地震作用下不发生滑移。The friction damping layer 2 is made of high friction coefficient material (friction coefficient greater than 0.5) to ensure that it can provide sufficient frictional resistance for the damping layer floor. The specific value of the friction coefficient should be determined according to the specific structural analysis. In addition, the friction damping layer 2 is integrally poured together with the frame beams and frame columns of the same layer. Ensure that it does not slip under earthquake action.
减震层中柱的端部和框架梁的箍筋需要进行加密，以保证他们的刚度符合要求。The ends of the columns in the shock-absorbing layer and the stirrups of the frame beams need to be densified to ensure their rigidity meets the requirements.
减震层楼板1为可滑移结构。当建筑结构在地震荷载荷载作用下产生振动时，减震层楼板1发生滑移产生一个与结构振动方向相反的惯性力反作用在主体结构上，调谐这个因结构振动而产生的惯性力，对建筑结构的振动产生调谐作用，使主体结构的振动衰减并受到控制，从而达到防止结构损坏和失效的目的。The shock-absorbing floor slab 1 is a slidable structure. When the building structure vibrates under the action of the earthquake load, the shock-absorbing layer floor 1 slips and produces an inertial force opposite to the vibration direction of the structure to react on the main structure. Tuning the inertial force generated by the structural vibration has a great impact on the building. The vibration of the structure produces a tuning effect, which attenuates and controls the vibration of the main structure, thereby achieving the purpose of preventing structural damage and failure.
通过对新型TMD减震系统参数的优化分析，确定新型TMD减震系统的阻尼系数、刚度系数等重要参数以及减震层的设置位置和个数，以实现赋予高层建筑、超高层建筑良好的抗振性能。Through the optimization analysis of the parameters of the new TMD damping system, the important parameters such as the damping coefficient and stiffness coefficient of the new TMD damping system, as well as the setting position and number of damping layers of the new TMD damping system are determined, so as to achieve high-rise buildings and super high-rise buildings. vibration performance.
本说明书中所描述的以上内容仅仅是对本发明所作的举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改、补充或采用类似的方式替代，只要不偏离本发明说明书的内容或者超越权利要求书所定义的范围，均应属于本发明的保护范围。The above content described in this specification is only an illustration of the present invention. Those skilled in the art to which the present invention belongs may make various modifications, supplements or substitutes in similar ways to the described specific embodiments, as long as they do not deviate from the content of the present invention description or exceed the scope defined in the claims. All should belong to the protection scope of the present invention.
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| CN107740523A (en) * | 2017-10-13 | 2018-02-27 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107795051A (en) * | 2017-10-13 | 2018-03-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107795050A (en) * | 2017-10-13 | 2018-03-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107795053A (en) * | 2017-10-13 | 2018-03-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107842140A (en) * | 2017-10-13 | 2018-03-27 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107905421A (en) * | 2017-10-13 | 2018-04-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107905425A (en) * | 2017-10-13 | 2018-04-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107905420A (en) * | 2017-10-13 | 2018-04-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
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| CN107975172A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975171A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975173A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975170A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975175A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN113653230A (en) * | 2021-07-26 | 2021-11-16 | 福建建祥建筑科技有限责任公司 | High-safety building prefabricated floor plate |
| CN115492231A (en) * | 2022-09-28 | 2022-12-20 | 安徽省建筑科学研究设计院 | A multi-hazard resistant steel frame structure |
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| CN107956264A (en) * | 2017-10-13 | 2018-04-24 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975174A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107795050A (en) * | 2017-10-13 | 2018-03-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107956263A (en) * | 2017-10-13 | 2018-04-24 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107842140A (en) * | 2017-10-13 | 2018-03-27 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
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| CN107795053A (en) * | 2017-10-13 | 2018-03-13 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975172A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975171A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975173A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975170A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN107975175A (en) * | 2017-10-13 | 2018-05-01 | 四川动和工程咨询有限公司 | A kind of anti-dropout precast floor slab unit |
| CN113653230A (en) * | 2021-07-26 | 2021-11-16 | 福建建祥建筑科技有限责任公司 | High-safety building prefabricated floor plate |
| CN113653230B (en) * | 2021-07-26 | 2023-03-10 | 福建建祥建筑科技有限责任公司 | High-safety building prefabricated floor plate |
| CN115492231A (en) * | 2022-09-28 | 2022-12-20 | 安徽省建筑科学研究设计院 | A multi-hazard resistant steel frame structure |
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