The influence of site effect on damping modification factor

• Main Authors: Chun-Ting Huang, 黃鈞鼎
• Other Authors: Chun-Min Weng
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/15132681160284171949

碩士 === 國立中興大學 === 土木工程學系所 === 96 === This paper investigates the influence between damping coefficients and the characters of soil reaction. This study first simulates different soil interaction on the Fourier spectrum. These spectrums are categorized using normal distribution method. Such results are then used to modify the damping coefficients. Near fault and non-near fault measurement are verified by the analysis and observations from the earthquake records. Before the field measurements are analyzed, the earthquake records are exam by the building codes. The purpose for doing this is to compare the response spectrums between real earthquake and simulation data. Statically regression for short and long vibration period is also used to check the damping coefficients of the structures. Vibrational period of 0.3 or 1 second is utilized respectively as the parameters of the modification of the damping coefficient. The results show that modified damping coefficient would change due to soil reaction and the frequency function of the earthquake.