Multiobjective optimization of post-tensioned concrete box-girder road bridges considering cost, CO2 emissions, and safety
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- 作者：Tatiana Garcí ; a-Segura tagarse@cam.upv.es" class="auth_mail" title="E-mail the corresponding author ; Ví ; ctor Yepes ; vyepesp@cst.upv.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：Multiobjective optimization ; CO2 emissions ; Safety ; Post-tensioned concrete ; Box-girder bridge ; Multiobjective harmony search
- 刊名：Engineering Structures
- 出版年：2016
- 出版时间：15 October 2016
- 年：2016
- 卷：125
- 期：Complete
- 页码：325-336
- 全文大小：1903 K
文摘
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A multiobjective optimization of post-tensioned concrete road bridges is presented.
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A computer tool combines finite-element analysis and limit states verification.
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Output provides a trade-off between cost, CO2 emissions, and overall safety factor.
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Near the optima, a one-euro reduction represents a 2.34 kg CO2 emissions reduction.
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Results show the cheapest and most eco-friendly variables for improving safety.