Repozytorium publikacji - Politechnika Gdańska

Steel Moment Resisting Frames (SMRFs) are very popular lateral load resisting systems in many seismically active regions. However, their seismic response is strongly dependent on the rotational fixity of column base connections. Despite many studies (both experimental and numerical) in this particular area, available approaches for estimating column base flexibility have been validated only against laboratory test data. In the present paper these approaches are examined based on strong motion recordings from two instrumented SMRF buildings in California (CA) to introduce best practices for seismic response simulation. Three-dimensional simulation models are constructed for these buildings, including the gravity framing and non-structural stiffness. For each building, the base fixities are parametrically varied. These include pinned and fixed bases, as well as intermediate fixities determined from previously developed models that are appropriate for simulating the specific types of base connections used in the buildings. The simulated response of these buildings is compared to strong motion recordings to propose optimal approaches for simulating rotational fixity of column base connections.

Autorzy

• dr inż. Tomasz Falborski link otwiera się w nowej karcie ,
• Ahmad Hassan,
• Prof. Amit Kanvinde