【摘要】 对结构工程师来说,设计优化正变得日益重要。该文描述了一种结合机构法和遗传算法进行整体化设计优化的方法。前种方法是当前英国交通部采用的一种主要的计算拱的工具;后者是强有力的数值函数优化方法。文中显示了英国肯特Teston桥和一系列其它样本设计优化的试算结果及相关的算法有效性数据。建议本方法为涉及现存桥梁的评估、维护和修理及新拱桥设计的结构工程师的设计辅助工具。更多还原

【Abstract】 Design optimization is becoming increasingly important to the structural engineers. This article presents an integrated design optimization method combining the mechanism method with genetic algorithms. The former is currently one of the principal arch assessment tools adopted by the Ministry of Transport in England; the latter is a powerful numerical function optimization technique. Trials showing results from Teston Bridge, Kent in England and a range of other sample optimal arch designs are presented with associated algorithm efficiency data. The method is proposed as a design aid for structural engineers involved in the assessment, maintenance, and repair of existing bridges, and the design of new arches.更多还原