When talking about refined analysis, most engineers might think of using it for complex bridges and bridges that are beyond the range of applicability of the AASHTO LRFD formulas. While many favor a general philosophy of keeping the analyses simple to minimize errors, or to remain true to the accepted, proven engineering practices, it might come at a cost. Dr. Yanling Leng, lead bridge engineer from IMEG, will talk about why and how she has conducted refined analyses for the optimum design & load rating of normal local bridges.
