Lecture
This lecture covers the Equivalent Lateral Force method for seismic analysis, focusing on the Response Spectrum Method and the distribution of lateral forces in buildings. It explains the criteria for regularity in plan and elevation according to SIA 261, and provides examples of building design with different storeys. The lecture also discusses the steps of the ELF method, including modeling the structure, determining design spectral acceleration, calculating base shear, and considering torsional effects. It emphasizes the importance of analyzing multiple excitation directions and the combination of horizontal and vertical seismic forces in structural design.