【摘要】：消能減震結構是近年來各國都在研究的地震領域的一項新技術，消能減震結構是通過附加在結構上的消能裝置來消耗水平地震作用或風作用下輸入給結構的能量，從而達到抗震目的。基于性能的抗震設計是指結構所產生的最大變形不超過事先設定好的一個范圍（即性能目標），通過合理的性能目標的選定，使得建筑結構的造價費用更為合理。結合消能裝置，將其應用到基于性能的抗震設計理念中來，本文將二者結合，并且針平面對不對稱結構，進行了以下研究工作。 對于粘滯阻尼器的力學特性進行了簡單的介紹，給出了粘滯阻尼器的各種力學模型，比較了非線性粘滯阻尼器和線性粘滯阻尼器的性能，介紹了非線性阻尼器的等效線性化原理。推導了線性粘滯阻尼器和非線性粘滯阻尼器的附加阻尼比計算公式。并對其他常見阻尼器進行簡單介紹。 研究了附加非線性粘滯阻尼器平面不對稱結構基于性能的抗震設計方法，介紹了平面對稱結構直接基于位移的抗震設計方法。將結構多自由度體系等效成為單自由度體系，然后由位移反應譜計算出單自由度體系在特定地震作用下，滿足性能目標的總阻尼比，認為該阻尼比就是原結構所需的總阻尼比，從而計算出阻尼器所需提供的阻尼比，最后進行阻尼器設計。針對平面不對稱結構，使用能力譜法，建立需求曲線與能力曲線，通過交點與目標位移的比較，計算出了結構滿足性能目標的附加阻尼比。介紹了結構在兩個方向上的阻尼系數(shù)的分配方式，，通過兩條實際地震波和一條人工波對消能結構進行時程分析，用于驗證能力譜法對于平面不對稱結構的有效性。 探索了附加粘滯阻尼器結構的位移響應計算方法，首先假定結構頂點位移，算出附加非線性阻尼器結構的總阻尼比，建立能力譜曲線與需求譜曲線，比較二者交點與假定的頂點位移的關系，若比較結果不接近，則重新假定結構頂點位移，進行反復迭代失算，直到假定的頂點位移與能力譜曲線和需求譜曲線的交點的位移接近為止。用此方法，計算多個模態(tài)下結構的頂點位移，最后通過CQC組合得出結構頂點的最終位移。并用三條地震波對效能結構進行時程分析，已驗證該方法的有效性。
[Abstract]:The energy dissipation structure is a new technique in the field of earthquake which has been studied by many countries in recent years. The energy dissipation structure consumes the energy input to the structure by means of the energy dissipation device attached to the structure under the action of horizontal earthquake or wind. In order to achieve the purpose of earthquake resistance. Performance-based seismic design means that the maximum deformation produced by the structure does not exceed a predefined range (i.e., the performance target). Through the selection of reasonable performance objectives, the cost of the building structure is more reasonable. Combined with the energy dissipation device, it is applied to the performance-based seismic design concept. In this paper, the two methods are combined, and the asymmetric structure is studied in the needle plane. In this paper, the mechanical properties of viscous dampers are briefly introduced. Various mechanical models of viscous dampers are given, and the performances of nonlinear viscous dampers and linear viscous dampers are compared. The principle of equivalent linearization of nonlinear dampers is introduced. The formulas for calculating the additional damping ratio of linear viscous dampers and nonlinear viscous dampers are derived. The other dampers are introduced briefly. The performance-based seismic design method for planar asymmetric structures with nonlinear viscous dampers is studied. The displacement-based seismic design method for planar symmetric structures is introduced. The multi-degree-of-freedom system of a structure is equivalent to a single-degree-of-freedom system. Then the total damping ratio of the single-degree-of-freedom system under specific earthquake action is calculated by displacement response spectrum. It is considered that the damping ratio is the total damping ratio required by the original structure. The damping ratio of the damper is calculated and the damper is designed. According to the plane asymmetric structure, the capacity spectrum method is used to establish the demand curve and the capability curve. By comparing the intersection point with the target displacement, the additional damping ratio of the structure satisfying the performance objective is calculated. In this paper, the distribution of damping coefficient in two directions is introduced. Through the time-history analysis of two actual seismic waves and one artificial wave, the effectiveness of the capability spectrum method for plane asymmetrical structures is verified. In this paper, the method of calculating the displacement response of the structure with viscous dampers is explored. Firstly, the peak displacement of the structure is assumed, the total damping ratio of the structure with nonlinear dampers is calculated, and the capacity spectrum curve and the demand spectrum curve are established. The relationship between the intersection of the two points and the assumed vertex displacement is compared. If the comparison results are not close, then the structural vertex displacement is re-assumed and repeated iterative miscalculation is carried out. Until the assumed vertex displacement is close to the displacement at the intersection of the capacity spectrum curve and the demand spectrum curve. Using this method, the vertex displacement of the structure under multiple modes is calculated, and the final displacement of the structure vertex is obtained by CQC combination. The effectiveness of the method is verified by time history analysis of three seismic waves.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU352.11

【參考文獻】

相關期刊論文 前10條

1 杜永峰;劉彥輝;李慧;;雙向偏心結構扭轉耦聯(lián)地震反應的序列最優(yōu)控制[J];地震工程與工程振動;2007年04期

2 歐進萍,吳斌,龍旭;結構被動耗能減振效果的參數(shù)影響[J];地震工程與工程振動;1998年01期

3 鄭久建,魏璉;多高層建筑采用粘滯阻尼器減震結構的扭轉分析[J];工程抗震;2004年02期

4 歐進萍,龍旭;速度相關型耗能減振體系參數(shù)影響的復模量分析[J];工程力學;2004年04期

5 方鄂華,程懋X;關于規(guī)程中對扭轉不規(guī)則控制方法的討論[J];建筑結構;2005年11期

6 錢稼茹,呂文,方鄂華;基于位移延性的剪力墻抗震設計[J];建筑結構學報;1999年03期

7 陳道政,李愛群,張志強,楊蔚彪;西安某科研樓頂鋼結構塔樓減震控制研究[J];建筑科學;2004年03期

8 王永衛(wèi);王群偉;杜杰;;隔震技術的應用與發(fā)展[J];山西建筑;2009年27期

9 于子武;李進;李青寧;;不規(guī)則結構扭轉效應控制的對比分析與研究[J];四川建筑;2010年03期

10 徐趙東,郭寧,趙鴻鐵,張興虎;裝有粘彈性阻尼器的鋼筋混凝土結構振動臺試驗[J];世界地震工程;2001年02期

相關博士學位論文 前1條

1 孟春光;復雜體型方鋼管混凝土框架結構抗震性能和減震研究[D];同濟大學;2006年

本文編號：2330760