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Research for Vibration Control of High-rise Steel Structure Using Shape Memory Alloys

Author: PengYi
Tutor: DingYang
School: Tianjin University
Course: Structural Engineering
Keywords: Rise steel Shape memory alloy (SMA) Vibration Control Hyperelastic Time history analysis
CLC: TU973.2
Type: Master's thesis
Year: 2004
Downloads: 219
Quote: 3
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Abstract


The larger the height of the high - rise steel structure affected by the earthquake force the more significant , so it is necessary for vibration control . There is an urgent need to find an economical and practical , the effect is significant and does not rely on outside energy control measures , and to establish the appropriate theory and method . Shape memory alloy (SMA) as a new type of smart materials , has a unique shape memory performance and super - elastic properties , has been of great concern in the field of structural vibration control . In this paper, the use of super - elastic properties of the SMA material , implementation of vibration control of seismic response of tall steel structure , the establishment of a high-rise steel structure vibration control system to improve the seismic safety of high - rise steel structure , which has important theoretical significance and value of the works . Thesis work and innovations mainly in the following aspects : (1 ) the shape memory alloy wire stretched unload cycle test, observe the super - elastic properties , a stable shape memory alloy material stress-strain hysteresis curve . According to the experimental stress-strain hysteresis curve to determine the choice of the shape memory alloy material parameters , and the experimental results and the theoretical value compared to verify the applicability of the shape memory alloy material constitutive . (2 ) In accordance with the vibration control theory and high-rise steel structure deformation characteristics , design SMA passive control of cable program , establish vibration control equations based on the principles of the finite element and the elastic properties of the shape memory alloy and its numerical analysis method . (3) to test the effectiveness of the SMA cable control of high-rise steel structure vibration testing various control methods to control the effect of international reference model -20 layer Benchmark Analysis model . Rise steel structure model with ANSYS to establish an engineering example , its implementation of the SMA cable passive control structure seismic response history analysis to explore the SMA cable on the seismic response of tall steel structure passive control effects and laws , as well as the impact of control effect a variety of factors , and provide some theoretical basis for engineering applications .

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CLC: > Industrial Technology > Building Science > High-rise buildings > Tall Building Structures > Structural Analysis and Calculation
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