id author title date pages extension mime words sentence flesch summary cache txt f1881j94m2g Stephen L Erwin Extraction of Full-Scale Dynamic Properties from Short Duration Records 2010 .txt text/plain 457 15 23 Once the reliability of the extracted dynamic properties was established, this thesis explored the influence of characteristics such as height, aspect ratio and structural system on the dynamic properties, demonstrating how damping and frequency characteristics for structural systems dominated by cantilever effects are more appropriately parameterized by variables such as height or slenderness, while those from systems dominated by frame action are more reliant on floor plate aspect ratio. While this database encompasses a number of structural systems and materials, the buildings were only instrumented for short periods of time under ambient vibration levels, making the extraction of parameters like damping quite difficult. cache/f1881j94m2g.txt txt/f1881j94m2g.txt