Published Paper Details:

This article explores and compares two seismic design methods, namely the lateral force method and the response spectrum analysis, for multi-story steel structures. It begins by introducing the fundamentals of seismic analysis and the importance of earthquake-resistant design. The article delves into the differences between major earthquakes at tectonic plate boundaries and intra-plate earthquakes, highlighting the significance of steel structures in earthquake resistance due to their ductility. The two primary seismic design options, focusing on elastic and plastic behavior, are discussed, emphasizing the concept of dissipative and non-dissipative structures. The article then presents a detailed problem statement involving a six-story steel structure subjected to seismic analysis. The seismic parameters for the building site are outlined. The analysis is conducted using both the equivalent static method and response spectrum analysis, with load parameters and results provided. The article further covers connection design, unstiffened seat connection, and base plate design. In conclusion, it discusses the differences in results between the two analysis methods and their implications on the design and cost-effectiveness of steel structures in seismic zones. The study reveals that lateral force methods yield higher base shear values and higher steel consumption, making response spectrum analysis a more realistic and cost-effective approach for seismic design.