EFFECT OF MULTI-SUPPORT EXCITATION ON SEISMIC BEHAVIOR OF TFPS-ISOLATED CABLE STAYED BRIDGE
Keywords:
Cable Stayed bridge, Base Isolation, Triple Friction Pendulum System., Multi-support Excitation, SAP2000Abstract
The seismic response of cable stayed bridge isolated with Triple Friction Pendulum System (TFPS) is
investigated under multi-support excitation using SAP2000. Dynamic response of bridge is executed by the non-linear
time history method. Predominantly, isolation mechanisms are placed under the deck & abutment of cable stayed bridge
but in this study isolation mechanism are placed under pylon & abutment. Analysis result shows that base shear and
acceleration are decreased whereas displacement is increased in TFPS-isolated bridge with multi-support excitation as
compared to TFPS-isolated bridge without multi-support excitation.