Optimizing pile group design using a real genetic approach

Jin Hung Hwang, Yu Da Lyu, Ming Chien Chung

研究成果: 書貢獻/報告類型會議論文篇章同行評審

2 引文 斯高帕斯(Scopus)

摘要

This paper presents a practical methodology for optimizing pile group design of bridge foundation. A code-based method is used to design and analyze piled foundation. Then, a mathematical model for optimizing the problem by a real genetic algorithm is established with the direct total cost of pile foundation as the objective function. The global optimal solution (GOS) is first found by the exhaustive searching method (ESM). The GOS is a base for verifying the performance of different searching methods. The real genetic algorithm (RGA) is then proposed to globally search the optimal solution in a much little time than ESM. Seven real design cases are used to test the performance of RGA. Static penalty method (SPM) and Death penalty method (DPM) are used to treat constrained functions in the RGA used in the study. The analysis results show that the RGA can obtain the solutions within 48-61 minutes which are only about 1/1,000 of the time spent by the ESM. The construction costs of those solutions only differ from those of the global minimum solutions by 1.62-2.0% in average, and the minimum cost one of the solutions is the same as the global minimum solution. Thus, the proposed optimization methodology is time-efficient and technically practicable to be used in daily engineering works.

原文???core.languages.en_GB???
主出版物標題Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011
頁面491-499
頁數9
出版狀態已出版 - 2011
事件21st International Offshore and Polar Engineering Conference, ISOPE-2011 - Maui, HI, United States
持續時間: 19 6月 201124 6月 2011

出版系列

名字Proceedings of the International Offshore and Polar Engineering Conference
ISSN(列印)1098-6189
ISSN(電子)1555-1792

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???event.eventtypes.event.conference???21st International Offshore and Polar Engineering Conference, ISOPE-2011
國家/地區United States
城市Maui, HI
期間19/06/1124/06/11

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