Modeling of Triple Concave Friction Pendulum in SAP2000 for Isolation of Buildings

9th International Congress on Advances in Civil Engineering, Trabzon, Türkiye, 27 - 30 Eylül 2010, ss.1-13, (Tam Metin Bildiri)

Seismic isolated building structures are examined in this study. Triple concave friction pendulum (TCFP) is used

as a seismic isolation system which is easy to be manufactured and enduring more than traditional seismic

isolation systems. In the TCFP, take advantage of weight which pendulum carrying and it’s geometry in order to

obtain desirable result of seismic isolation systems. These systems offer advantage to buildings which subject to

severe earthquake. This is result of damping force of earthquake by means of their internal constructions, which

consists of multiple surfaces. As the combinations of surfaces upon which sliding is occurring change, the

stiffness and effective friction change accordingly.

A 2-D dimensional and eight stories of a building with and without isolation system are used in the time history

analysis in order to investigate of the effectiveness of the seismic isolation systems on the buildings. Results are

compared with each other to emphasize efficiency of the TCFP as a seismic isolation device. Additionally, the

mentioned TCFP is modeled as of a series arrangement of the three SCFP bearings.