顶部带FPS-TMD系统的高耸结构风振控制效益分析
发布时间：2018-10-09 17:32
【摘要】：近年来随着我国经济的迅速发展,轻质高强材料的大量应用,高层建筑和高耸结构正朝着高度越来越高、细长化、轻质高强、阻尼小的方向发展,导致上述结构刚度较柔,对风荷载越来越敏感,在强风荷载作用下的侧移和风致加速度明显增大,风荷载往往成为控制此类高柔建(构)筑物结构设计的主要控制荷载。为控制超高层建筑和高耸结构在强风作用下产生过大的风致侧移和风致加速度,以满足规范对上述结构在强风作用下的变形及舒适度要求。本文把地震工程中常用的摩擦摆(Fricition Pendulum Syetem,FPS)隔震系统和常用的调频质量阻尼器(Tunned Mass Damper,TMD)被动控制系统有机结合,形成一种新型的摩擦摆调谐质量阻尼器(FPS-TMD)被动控制系统。放置在高层建筑与高耸结构顶部,来达到对主体结构进行风振控制的目的。在对FPS-TMD系统本身的静动力学特征进行理论分析的基础上,本文对高耸结构顶部设置此新型FPS-TMD系统,在风荷载作用下的风振响应理论进行了详细而系统的理论分析和推导。并结合本论文的理论分析成果,以高耸结构广州新电视塔为实例,在对其顺风向脉动风荷载进行模拟的基础上,采用此高耸结构的竖向集中质量多自由度简化模型和三维整体有限元模型,对此高耸结构顶部假设设置FPS-TMD的风振控制效率进行了较为系统的分析,并对采用两类有限元模型进行风振控制的分析结果进行了对比。本文主要研究的内容如下:对摩擦摆调谐质量阻尼器(FPS-TMD)系统的力学特征、自治动力特性进行了相关研究及部分计算公式的推导,阐明了FPS-TMD系统自身的静动力学特性。在此基础上推导建立了多高层结构顶部带FPS-TMD系统与主体结构相结合的结构体系,在风荷载作用下的风致时程动力分析的相关数值方法及动力分析策略。利用谐波叠加法,结合对广州新电视塔进行风洞实验的分析结果,利用准定常假定对与主体结构的顺风向荷载进行数值模拟,应用广州新电视塔的竖向集中质量多自由度简化模型。假设其顶部设置FPS-TMD被动控制系统,通过选用FPS-TMD系统的不同参数,如FPS-TMD系统质量、滑道半径、不同摩擦系数模型等,对此高耸结构进行了风振响应及风振控制效率的参数化分析。数值分析表明通过选用适当的FPS-TMD系统参数,对主体结构的风振位移和风致加速度控制效率明显。通过对大型通用有限元软件SAP2000的摩擦摆隔振阻尼器单元,进行改进和扩充,采取一系列分析工况的组合,实现了利用SAP2000软件,进行高层建筑和高耸结构顶部设置FPS-TMD系统的风振时程动力分析方法。同时采用广州新电视塔三维整体有限元模型,选用多种不同的风振控制模型,对此高耸结构进行了在选用不同模型工况下的风振响应及风振控制效率分析,对各类不同分析工况下的风振控制结果进行了对比分析。采用三维有限元整体模型的数值分析表明,用多重质量块的FPS-MTMD系统,以及设置双向FPS-TMD系统后,对本文中所涉及的分析工况而言风振控制效率接近。但设置双向FPS-TMD系统时,可以有效抵御来自包括顺风向和横风向荷载的共同作用。通过本文综合分析表明,本文提出的FPS-TMD系统可以有效地减少风荷载对主体结构的风致振动响应,同时FPS-TMD系统因为具有良好的稳定性和自复位、自限位功能。FPS-TMD系统作为一种有效的被动减振装置,可以有效地利用于高层建筑和高耸结构的风振控制体系中。
[Abstract]:In recent years, with the rapid development of our country's economy, many applications of lightweight high-strength materials, high-rise buildings and high-rise structures are moving toward higher and higher heights, elongated, light-weight, high-strength and small damping, resulting in the above-mentioned structural rigidity being more flexible and more sensitive to wind load. Side-shift and wind-induced acceleration under strong wind load are obviously increased, and wind load tends to be the main control load to control the structural design of such high-flexible buildings (structures). In order to control the high-rise building and the high-rise structure, a large wind-induced side-shift and wind-induced acceleration are generated under the action of strong wind, so as to meet the requirements for deformation and comfort of the structure under strong wind action. In this paper, a novel friction pendulum tuning mass damper (FPS-TMD) passive control system is formed by combining the common friction pendulum (FPS) seismic isolation system and the common FM mass damper (TMD) passive control system in seismic engineering. and the aim of wind vibration control on the main body structure is achieved by placing the high-rise building and the top of the high-rise structure. Based on the theoretical analysis of the static dynamic characteristics of FPS-TMD system, this paper introduces the new FPS-TMD system at the top of the high-rise structure, and gives a detailed analysis and deduction of the wind-vibration response theory under wind load. Based on the analysis of the theoretical analysis of the thesis, based on the simulation of the wind load of the high-rise building, the multi-degree-of-freedom simplified model and the three-dimensional integral finite element model of the high-rise structure are adopted. At the top of this high-rise structure, the wind vibration control efficiency of FPS-TMD is analyzed, and the results of wind vibration control using two kinds of finite element models are compared. The main contents of this paper are as follows: The mechanical characteristics and autonomous power characteristics of the friction pendulum tuned mass damper (FPS-TMD) system are studied and some calculation formulas are derived, and the static and dynamic characteristics of FPS-TMD system are expounded. On the basis of this, the structure system of FPS-TEX system and the main body structure in the top of the multi-layer structure is deduced, and the relevant numerical method and dynamic analysis strategy of the wind-induced time-range dynamic analysis under wind load are established. Based on the analysis of the wind tunnel experiment of Guangzhou New TV Tower by harmonic superposition method, a numerical simulation of the wind tunnel load with the main structure is carried out by using the quasi-stationary assumption, and the multi-degree-of-freedom simplified model of the vertical concentrated mass of the new TV tower in Guangzhou is applied. Assuming that the top of the system is equipped with FPS-TMD passive control system, the wind vibration response and wind vibration control efficiency of the high-rise structure are analyzed by selecting different parameters of FPS-TMD system, such as FPS-TMD system mass, slideway radius, different friction coefficient model, etc. Numerical analysis shows that the wind-vibration displacement and the wind-induced acceleration control efficiency of the main body structure are obviously improved by selecting the appropriate FPS-TMD system parameters. Through the improvement and expansion of the friction pendulum vibration isolation damper unit of the large-scale general-purpose finite element software SAP2000, a series of combination of analysis conditions is adopted to realize the wind-vibration time-range dynamic analysis method for the high-rise building and the top of the high-rise structure by using the SAP2000 software. At the same time, the three-dimensional integral finite element model of Guangzhou New TV Tower is adopted, and a variety of different wind vibration control models are selected, and the wind vibration response and the wind vibration control efficiency analysis under different model conditions are selected for the high-rise structure. The wind vibration control results under different analysis conditions were compared and analyzed. Numerical analysis of the three-dimensional finite element model shows that the wind vibration control efficiency is close to the analysis conditions involved in this paper after the FPS-MTMD system with multiple mass blocks and the two-way FPS-MTMD system are set up. However, in the case of a two-way FPS-TMD system, it is possible to effectively resist the common effects of loads from both downwind and crosswind directions. Through the comprehensive analysis of this paper, the FPS-TMD system proposed in this paper can effectively reduce the wind-induced vibration response of wind load on the main structure, and the FPS-TMD system has good stability and self-resetting and self-limiting function. FPS-TMD system is a kind of effective passive vibration damping device, which can be used effectively in the wind vibration control system of high-rise buildings and high-rise structures.
【学位授予单位】：广州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU973.213
[Abstract]:In recent years, with the rapid development of our country's economy, many applications of lightweight high-strength materials, high-rise buildings and high-rise structures are moving toward higher and higher heights, elongated, light-weight, high-strength and small damping, resulting in the above-mentioned structural rigidity being more flexible and more sensitive to wind load. Side-shift and wind-induced acceleration under strong wind load are obviously increased, and wind load tends to be the main control load to control the structural design of such high-flexible buildings (structures). In order to control the high-rise building and the high-rise structure, a large wind-induced side-shift and wind-induced acceleration are generated under the action of strong wind, so as to meet the requirements for deformation and comfort of the structure under strong wind action. In this paper, a novel friction pendulum tuning mass damper (FPS-TMD) passive control system is formed by combining the common friction pendulum (FPS) seismic isolation system and the common FM mass damper (TMD) passive control system in seismic engineering. and the aim of wind vibration control on the main body structure is achieved by placing the high-rise building and the top of the high-rise structure. Based on the theoretical analysis of the static dynamic characteristics of FPS-TMD system, this paper introduces the new FPS-TMD system at the top of the high-rise structure, and gives a detailed analysis and deduction of the wind-vibration response theory under wind load. Based on the analysis of the theoretical analysis of the thesis, based on the simulation of the wind load of the high-rise building, the multi-degree-of-freedom simplified model and the three-dimensional integral finite element model of the high-rise structure are adopted. At the top of this high-rise structure, the wind vibration control efficiency of FPS-TMD is analyzed, and the results of wind vibration control using two kinds of finite element models are compared. The main contents of this paper are as follows: The mechanical characteristics and autonomous power characteristics of the friction pendulum tuned mass damper (FPS-TMD) system are studied and some calculation formulas are derived, and the static and dynamic characteristics of FPS-TMD system are expounded. On the basis of this, the structure system of FPS-TEX system and the main body structure in the top of the multi-layer structure is deduced, and the relevant numerical method and dynamic analysis strategy of the wind-induced time-range dynamic analysis under wind load are established. Based on the analysis of the wind tunnel experiment of Guangzhou New TV Tower by harmonic superposition method, a numerical simulation of the wind tunnel load with the main structure is carried out by using the quasi-stationary assumption, and the multi-degree-of-freedom simplified model of the vertical concentrated mass of the new TV tower in Guangzhou is applied. Assuming that the top of the system is equipped with FPS-TMD passive control system, the wind vibration response and wind vibration control efficiency of the high-rise structure are analyzed by selecting different parameters of FPS-TMD system, such as FPS-TMD system mass, slideway radius, different friction coefficient model, etc. Numerical analysis shows that the wind-vibration displacement and the wind-induced acceleration control efficiency of the main body structure are obviously improved by selecting the appropriate FPS-TMD system parameters. Through the improvement and expansion of the friction pendulum vibration isolation damper unit of the large-scale general-purpose finite element software SAP2000, a series of combination of analysis conditions is adopted to realize the wind-vibration time-range dynamic analysis method for the high-rise building and the top of the high-rise structure by using the SAP2000 software. At the same time, the three-dimensional integral finite element model of Guangzhou New TV Tower is adopted, and a variety of different wind vibration control models are selected, and the wind vibration response and the wind vibration control efficiency analysis under different model conditions are selected for the high-rise structure. The wind vibration control results under different analysis conditions were compared and analyzed. Numerical analysis of the three-dimensional finite element model shows that the wind vibration control efficiency is close to the analysis conditions involved in this paper after the FPS-MTMD system with multiple mass blocks and the two-way FPS-MTMD system are set up. However, in the case of a two-way FPS-TMD system, it is possible to effectively resist the common effects of loads from both downwind and crosswind directions. Through the comprehensive analysis of this paper, the FPS-TMD system proposed in this paper can effectively reduce the wind-induced vibration response of wind load on the main structure, and the FPS-TMD system has good stability and self-resetting and self-limiting function. FPS-TMD system is a kind of effective passive vibration damping device, which can be used effectively in the wind vibration control system of high-rise buildings and high-rise structures.
【学位授予单位】：广州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU973.213
【参考文献】
相关期刊论文 前10条
1 何敏娟;李旭;;河南省广播电视塔风振控制方法研究[J];结构工程师;2010年05期
2 顾明;黄鹏;周fE毅;朱乐东;潘汉明;;广州新电视塔模型测力风洞试验及风致响应研究Ⅰ:风洞试验[J];土木工程学报;2009年07期
3 周fE毅;顾明;朱乐东;黄鹏;潘汉明;;广州新电视塔模型测力风洞试验及风致响应研究Ⅱ:风致响应分析[J];土木工程学报;2009年07期
4 王建强;丁永刚;李大望;;摩擦摆支座恢复力模型研究[J];四川建筑科学研究;2007年03期
5 王均刚;马汝建;赵东;林近山;;TMD振动控制结构的发展及应用[J];济南大学学报(自然科学版);2006年02期
6 滕军;高峰;刘红军;李长朴;李洪峰;;脉动风作用下电视塔桅杆结构TMD控制的惯性质量与位置优化[J];工程抗震与加固改造;2006年01期
7 杨林;周锡元;苏幼坡;常永平;;FPS摩擦摆隔震体系振动台试验研究与理论分析[J];特种结构;2005年04期
8 王建强,管品武,李大望;摩擦摆基础隔震结构双向地震反应分析[J];世界地震工程;2005年03期
9 李大望,庄鹏,周锡元;结构内设备的摩擦摆隔震响应分析[J];世界地震工程;2004年04期
10 侯传亮,张永林;工程平稳随机过程的数值模拟研究[J];武汉工业学院学报;2003年03期
相关博士学位论文 前1条
1 吴本刚;格构式塔架结构基于线性与几何非线性分析的抗风优化设计方法研究[D];广州大学;2016年
相关硕士学位论文 前6条
1 胡嘉伟;带TMD系统高耸结构风振控制效益分析[D];广州大学;2016年
2 张s，
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