最適設計解近傍における建築骨組の設計

概要

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Teh solutions of optimum design building structure wouldn't adjust any factory products (shape steels). However, on the design problem, less restrictions will leads to more freedom of building structures with various designs different from the optimum one. This deregulation enables one to design a building structure with some modifications in the cross-section of the members from that of the optimum design. The modifications here are to make the cross-section area of certain members larger and (consequently) that of other members smaller than those of the optimum design while keeping the safety and minimizing the increase of the cost. In this thesis, the effective method to achieve above-mentioned design is presented. First, the optimum design techniques such as sensitivity analysis and fussy design theory are examined. Then, it is shown that the application of the second derived function of the objective function is effective to examine the situation of the approximal optimum solution, because the primary derived function is almost zero at the optimum solution. Some design examples are also presented in this thesis. First, all members of the plane frame were divided into some groups and the optimum design was carried out. Then, the range of the modification in the cross section of the members was shown.
一般社団法人日本建築学会の論文
2011-03-25