For analysis of complex structures, it is sometimes necessary to create mathematical representations utilizing various computer programs based on the finite element method. The sophistication of the model is project dependent and may be as simple as a two-dimensional beam analysis or may be a full-building model. Still other projects may demand detailed studies including finite element modeling of individual components or connections. YAES experts are versed in most state-of-the-art, commercially available computer analysis methods including linear elastic, linear dynamic, nonlinear static (pushover), and nonlinear dynamic.
Forces applied to a building or structure for a finite element analysis may be gravity-related, such as dead, live or snow loads, or may be from lateral forces such as wind or seismic. Additional external forces that may need to be considered include the effects of ponding, drifting snow, soil and hydrostatic effects, wave and tidal flow, construction loads, and foundation settlement. In addition, internal forces such as creep and shrinkage may need to be considered.
YAES performs finite element analyses based on common-sense modeling techniques with a deep understanding of the first principles of engineering. In addition, our decades of forensic engineering experience evaluating damaged structures provides YAES engineers a unique understanding of how real-life structures behave when subjected to various loadings. Understanding the importance of the input variables used—along with a rational interpretation of the results—sets our analyses apart from those of other firms.
Finite element modeling is an important analysis tool that can provide YAES experts the basis to support litigation and expert witness testimony, causation studies, and design and construction defect investigations. Our engineers utilize state-of-the-art finite element modeling programs such as SAP2000, ETABS, ADAPT, PERFORM-3D, and Risa-3D.
YAES services include: