首页> 外文OA文献 >Sensitivity analysis and optimum design curves for the minimum cost design of singly and doubly reinforced concrete beams
【2h】

Sensitivity analysis and optimum design curves for the minimum cost design of singly and doubly reinforced concrete beams

机译:单层和双层钢筋混凝土梁最小成本设计的灵敏度分析和最佳设计曲线

摘要

This paper reports on the application of the Lagrangian Multiplier Method (LMM) to the minimum cost design of both singly and doubly reinforced concrete rectangular beams under limit state design conditions. Cost objective functions and stress constraints are derived and implemented within the optimisation method. Cost sensitivity analysis, detailed testing and comparisons with conventional design office methods are performed and the results reported, showing that the Lagrangian Multiplier Method can be successfully applied to the minimum cost design of reinforced concrete beams. The proposed approach is effective and reliable without the need for iterative trials. Optimum design curves have been developed that can be used without prior knowledge of optimisation. Despite the simplification of the cost model and the assumptions made, satisfactory and reliable results have been obtained and confirmed by using standard design office procedures.
机译:本文报道了在极限状态设计条件下,拉格朗日乘数法(LMM)在单钢筋和双钢筋混凝土矩形梁的最小成本设计中的应用。成本目标函数和压力约束是在优化方法中得出并实现的。进行了成本敏感性分析,详细测试以及与传统设计事务所方法的比较,并报告了结果,表明拉格朗日乘数法可以成功地应用于钢筋混凝土梁的最小成本设计。所提出的方法是有效且可靠的,无需进行反复试验。已开发出最佳设计曲线,无需事先进行优化即可使用。尽管简化了成本模型并进行了假设,但通过使用标准设计办公室程序已获得并确认了令人满意和可靠的结果。

著录项

  • 作者

    Ceranic Boris; Fryer Colin;

  • 作者单位
  • 年度 2000
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号