| 基于GA－RS的规则钢筋混凝土桥梁圆形单柱桥墩延性抗震优化设计 |
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| 引用本文： | 郑玉国,袁万城.基于GA－RS的规则钢筋混凝土桥梁圆形单柱桥墩延性抗震优化设计[J].振动与冲击,2010,29(3):81-84. |
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| 作者姓名： | 郑玉国 袁万城 |
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| 作者单位： | （1、同济大学 土木工程防灾国家重点实验室，上海 200092；2、湖南科技大学 土木工程学院，湘潭 411201） |
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| 基金项目： | 国家自然科学基金资助项目，国家科技支撑计划资助项目，交通部科技项目 |
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| 摘 要： | 提出抗震结构集成优化设计的新方法，将多目标遗传优化算法与反应谱分析很好地结合起来，建立规则钢筋混凝土圆形单柱桥墩多目标抗震优化设计的通用框架，以圆形单柱桥墩的截面半径、纵向钢筋配筋率和横向箍筋配筋率为设计变量，以结构的初始材料造价、抗震强度需求能力比、抗震延性需求能力比为优化目标函数。通过把延性抗震设计问题转化为多目标优化问题，从而使设计者可以很好地平衡抗震设计的各种关键因素，并以可控的方式处理多个优化目标而获得Pareto意义上的最优设计参数。
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| 关 键 词： | 规则钢筋混凝土桥梁 抗震优化设计 延性抗震设计 遗传算法 反应谱分析 |
| 收稿时间： | 2009-2-16 |
| 修稿时间： | 2009-4-30 |
Optimal ductile seismic design of regular RC single-column circular bridge piers based on GA-RS |
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| ZHENG Yu-guo,YUAN Wan-cheng.Optimal ductile seismic design of regular RC single-column circular bridge piers based on GA-RS[J].Journal of Vibration and Shock,2010,29(3):81-84. |
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| Authors: | ZHENG Yu-guo YUAN Wan-cheng |
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| Affiliation: | (1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China2. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China) |
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| Abstract: | A new integrated optimal design method was proposed for earthquake-resistant structures.Multi-objective genetic algorithm and response spectrum analysis were integrated to establish a general framework for multi-objective optimal seismic design of regular reinforced concrete single-column circular bridge piers.The optimization adopts structural sizing variables such as radius of circular section,longitudinal and transverse reinforcement steel ratios as design variables.And the optimal objectives include the... |
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| Keywords: | regular reinforced concrete bridge optimal seismic design ductility seismic design genetic algorithm response spectrum analysis |
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