id author title date pages extension mime words sentence flesch summary cache txt sn009w05j0c Patrick Murren Development and Implementation of a Design-Driven Harmony Search Algorithm in Steel Frame Optimization 2011 .txt text/plain 149 5 24 Additionally, DDHS is implemented in optimizations in which frame sections and beam fixities are variable and the objective function considers the high cost of moment connections. When paired with standard harmony search in a two-phase method proposed herein, DDHS consistently identifies optimal designs for such connection topology optimizations. cache/sn009w05j0c.txt txt/sn009w05j0c.txt