Numerical Simulations of Seismic Responses of Structures Isolated with Spherical Sliding Isolators

• Main Authors: Shu-Zhe Ke, 柯書哲
• Other Authors: Chang,S.Y
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/88747u

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 95 === As computers are becoming more and more advanced in its calculating capability, the analysis of structural non-linear dynamic which was once difficult to execute is now realizable by the use of computers. With respect to the simulation of sliding bearing, applying the existing structural analyzing program to simulating the sliding bearing’s motion behavior will increase the analytical convenience. This research uses the structural analysis program, SAP2000, to construct the analytical model, aiming to correctly simulate the spherical sliding isolator behavior and further to certify the practicality of this analytical program. In order to simulate correctly the characteristic of spherical sliding isolators and to ensure the accuracy of the verification program, this thesis will cite the component test of spherical sliding isolators from the past thesis of (郭品宏 2001) to establish the basis for the simulation. Furthermore, the date from the seismic behaviors of a structure with spherical sliding isolators in the past thesis of (許宏旭 2003) will be applied to ensure the accuracy of the simulation. The analytical model SAP2000 constructed for this study uses the exact same size as the steel structure used in actual experiments. As SAP2000 is an engineering structure used to design package software, we only need to input data of the various size, cross section of figured steel and material characteristic. We can further use the build-in link to simulate the motion behavior of spherical sliding isolators including the effective stiffness and the friction coefficient. The main goal of this thesis is to apply the data from past experiments to verify if the current structural analytical software SAP2000 is able to simulate correctly the reaction of a construction equipped with spherical sliding isolators during earthquakes for reference in the future.