DYNAMIC & SEISMIC ANALYSIS
TIDES Consulting provides structural analysis due to dynamic loading such as equipment and earthquake excitation. We use analytical methods such as response spectrum analysis, modal analysis and time history analysis using computer software.
Frequency domain or known as response spectra analysis tends to be the most cost effective, as they require the least computational effort. Frequency domain analysis includes mode extraction and modal response, and harmonic analysis. Mode frequency analysis will identify the natural frequencies of structures and their sub systems, to allow analysis of the expected response of a structure. Once natural frequencies are known, areas of possible interaction and resonance can be isolated and modified if necessary. Applying a response spectrum to the identified frequencies and mode shapes, responses of the structure can be calculated. It is then possible to analyze load paths, deflections and stressing. Modal response analysis will also involve the combination of modes, using any of the common methods, direct sum, absolute sum, square root sum of squares (SRSS) and Complete Quadratic Combination (CQC).