| 湿室型泵房整体结构优化设计 |
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| 引用本文： | 蔡新,崔朕铭,陈卫东,黄海田,郭兴文.湿室型泵房整体结构优化设计[J].河海大学学报(自然科学版),2018,46(1):37-42. |
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| 作者姓名： | 蔡新 崔朕铭 陈卫东 黄海田 郭兴文 |
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| 作者单位： | 河海大学水利水电学院;河海大学力学与材料学院;江苏省水利工程质量监督中心站; |
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| 基金项目： | 江苏省水利科技项目(2015566369) |
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| 摘 要： | 针对现行规范方法设计的泵房存在"粗、大、笨"的问题,从降低泵房建设成本的角度,构建以泵房结构总造价最低为目标函数,泵房关键结构几何尺寸等参数为设计变量,泵房结构基底应力、地基承载力、抗滑稳定性、结构强度、沉降量及沉降差为约束条件的优化设计数学模型。采用有限元法对泵房结构进行三维有限元数值模拟,同时借助ANSYS软件提供的优化平台对其进行优化设计研究。结果表明:与原设计方案相比,优化方案的泵房总造价减少了9.7%,结构的缝墩厚度达到限定值,既减少了工程总造价,也降低了结构对地基的要求。
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| 关 键 词： | 湿室型泵房 整体结构 优化设计 有限元法 参数化模型 重分析 零阶法 一阶法 |
The overall optimization for the pumping house of a wet-pit type |
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| CAI Xin,CUI Zhenming,CHEN Weidong,HUANG Haitian and GUO Xingwen.The overall optimization for the pumping house of a wet-pit type[J].Journal of Hohai University (Natural Sciences ),2018,46(1):37-42. |
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| Authors: | CAI Xin CUI Zhenming CHEN Weidong HUANG Haitian and GUO Xingwen |
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| Institution: | College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; College of Mechanics and Materials, Hohai University, Nanjing 210098, China,College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China,Hydraulic Engineering Quality Supervision Station of Jiangsu Province, Nanjing 210029, China,Hydraulic Engineering Quality Supervision Station of Jiangsu Province, Nanjing 210029, China and College of Mechanics and Materials, Hohai University, Nanjing 210098, China |
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| Abstract: | In terms of the excessively designed pumping house by the method in current standard, an optimized model for the pumping house of a wet-pit type was proposed. The main dimensions of the pumping house are selected as design variables, while the minimum construction cost of the pumping house is the objective function. The stress of basement, the bearing capacity of foundation, the stability of sliding, the strength and the settlement of pumping house are the primary and constrained conditions. Then, the parameterization finite element model of the pumping house was established. An optimal scheme of the pumping house was obtained by utilizing the optimization platform of ANSYS. Compared to the original scheme, the optimized design shows a decrease of 9. 7% in the cost of the pumping house. Other results including the displacement, stress, and stability were all satisfactory. It indicates that the effect of optimization is noticeable and the economic benefits are also remarkable. |
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| Keywords: | pumping house of wet-pit type overall structure optimization design finite element method parametric model reanalysis zero-order method one-order method |
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