Numerical Simulation of Seismic Response Control of Frame Structure Using High-Temperature Shape Memory Alloy Wire
نویسندگان
چکیده
Both the Super-Elastic and Shape Memory Effect has been taken into account in this study by using SMA with high activation temperature. A Thermo-Mechanical SMA phenomenological constitutive model is used to simulate the SMA behaviour. The dynamic response data of a frame structure has been obtained from FE analysis by using the nonlinear FE software program MSC Marc. Then the frame is braced and reanalyzed; first using standard steel and then later using SMA, the seismic response of both the braced frames were measured. The SMA bracing is activated by joule-heating due to electrical current flow. From the FE solutions, the effectiveness of SMA braces over the steel braces as a seismic vibration control device and guidelines to optimum electrical input, considering appropriate stiffness and damping characteristics; is established.
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