Passive vibration control analysis of a mosque structure using diagonal bracing damper and toggle bracing damper

摘要

Mosque structures are common in Indonesia in which some catastrophic earthquake disasters happen and cause damage to structures failure. This type of structures usually has a typically simple shape and demanded to have a large free area in the center (column free). This paper is aimed at study of passive vibration control of typical Mosque structure using diagonal bracing damper and toggle bracing damper. Steel pipe and linear viscous fluid damper are used as bracing member and damper, respectively. In first approach, we build a simplified structure model of single degree of freedom (SDOF) for both controlled and uncontrolled system. Then we compare the natural frequencies and the dynamic responses of the structures subjected to 1940 El Centro earthquake record using time history analysis (THA). The effect of toggle angles, which influence the magnification factor, on the passively controlled performance will be studied.