PUSHOVER METHOD FOR WIND-RESISTANCE ANALYSES OF TALL BUILDING STRUCTURES
-
摘要: 基于Ti-51at%Ni形状记忆合金(SMA)丝材料性能试验,以结构振动控制理论为依据,针对框架结构剪切型变形的特点,在框架柱反弯点附近设置SMA被动拉索控制装置,分析其控制原理和规律,利用有限元软件检验其控制效果。结果表明,在柱反弯点处设置SMA被动拉索控制装置可对结构地震响应进行有效控制,因此在结构振动控制中具有广阔的应用前景。Abstract: Based on the time-history analysis of the elastic-plastic wind-induced response for a tall building structure under the strong breeze,the feasibility of the application of Pushover method to the wind resistance design of the structure is investigated.Through a series of comparative analyses for computational results of different methods,it is found that the tall building structures under the weak wind load are generally in the elastic state.The structural responses obtained by using the static-equivalent wind-load method in the code may meet the needs of practical projects.But under the strong breeze,some moments of the tall building structure would enter the plastic deformation state,the displacement responses provided by the Pushover method are in good agreement with the results of the time-history analysis,and the results of the static-equivalent wind-load method is unsafety.
-
Key words:
- tall building structure /
- wind-resistance analysis /
- time-history response /
- Pushover method /
-
王社良.形状记忆合金在结构控制中的应用[M].西安:陕西科学技术出版社,2000; [2] 沈聚敏,周锡元.抗震工程学[M].北京:中国建筑工业出版社,2000; [3] Brinson L C.One-Dimensional Constitutive Behavior of Shape MemoryAlloy:Thermomechanical Derivation with Non-Constant MaterialFunctions and Redefined Martensite Internal Variable[J].J.Intell.Mater.Syst.and Struct.,1993,4(2):229-242; [4] 王社良,苏三庆,沈亚鹏.形状记忆合金拉索被动控制结构地震响应分析[J].土木工程学报,2000,2(1):56-62; [5] Clough R W,Penzien J.Dynamics of Structures[M].New York:McGraw-Hill Book Co.Inc.,1993; [6] 匡震邦.非线性连续介质力学基础[M].西安:西安交通大学出版社,1989; [7] Shahin A R,Meckl P H,Jones J D.Enhanced Cooling of ShapeMemory Alloy Wires Using SemiconductorHeat PumpModules[J].J.Intell,Mater.Syst,and Struct.,1994,5(1):95-104.
点击查看大图
计量
- 文章访问数: 116
- HTML全文浏览量: 8
- PDF下载量: 93
- 被引次数: 0