TY - GEN
T1 - A direct displacement-based design method based on Chinese code of base isolated structures
AU - Sun, Zhen
AU - Liu, Weiqing
AU - Wang, Shuguang
AU - Zhou, Ding
AU - Du, Dongsheng
PY - 2011
Y1 - 2011
N2 - A simple and efficient direct displacement-based design (DDBD) method is introduced to base isolated (BI) structures. Assuming the vibration mode of superstructure to be the shear type and considering the BI structure to be an equivalent single degree of freedom (ESDOF) system with spring and damper at the seismic isolation layer. The acceleration response spectrum in Chinese code is converted to displacement response spectrum. Corresponding to the design displacement, the equivalent period is obtained. The relationship of the deign displacement, equivalent period, equivalent stiffness and base shear of the system can be derived from the given formulations. Then, the distribution of the base shear along the floors is obtained. This method has been applied to the design of a 12-story BI structure with lead rubber bearings in high intensity zone in Suqian city, Jiangsu province. The results show that the method is feasible for the design of BI structures.
AB - A simple and efficient direct displacement-based design (DDBD) method is introduced to base isolated (BI) structures. Assuming the vibration mode of superstructure to be the shear type and considering the BI structure to be an equivalent single degree of freedom (ESDOF) system with spring and damper at the seismic isolation layer. The acceleration response spectrum in Chinese code is converted to displacement response spectrum. Corresponding to the design displacement, the equivalent period is obtained. The relationship of the deign displacement, equivalent period, equivalent stiffness and base shear of the system can be derived from the given formulations. Then, the distribution of the base shear along the floors is obtained. This method has been applied to the design of a 12-story BI structure with lead rubber bearings in high intensity zone in Suqian city, Jiangsu province. The results show that the method is feasible for the design of BI structures.
KW - Base isolated structures
KW - Direct displacement-based design
KW - Lead rubber bearing
UR - http://www.scopus.com/inward/record.url?scp=79959794988&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.255-260.2555
DO - 10.4028/www.scientific.net/AMR.255-260.2555
M3 - 会议稿件
AN - SCOPUS:79959794988
SN - 9783037851395
T3 - Advanced Materials Research
SP - 2555
EP - 2559
BT - Advances in Civil Engineering
T2 - 2011 International Conference on Civil Engineering and Building Materials, CEBM 2011
Y2 - 29 July 2011 through 31 July 2011
ER -