某水闸闸室结构布置方案比较分析与初步设计

发布时间：2018-05-14 14:30

本文选题：水闸 + 结构布置　；参考：《南昌大学》2014年硕士论文

【摘要】：瑶湖节制闸位于南昌市高新开发区麻丘镇，坐落在瑶湖东出口，是瑶湖区域向红旗排涝总站泄水的主要通道。该水闸是一座以排涝为主兼顾灌溉、养殖及旅游开发等综合效益的中型工程。在水闸的传统设计中，人们通常是采用重复设计法，这样一方面使得设计冗长繁琐；另一方面最终方案受原始方案和设计者经验的影响很大，因此最终方案往往并非最优方案。同时，传统水闸结构计算方法是将闸室中的底板、闸墩分开计算，这种方法虽然简单，但很难反映结构的整体效应。更为合理的分析方法应该是把整个水闸结构和地基作为一个整体，考虑结构与地基的相互作用。本文首先以瑶湖闸为例，对水闸的设计布置进行分析比选和初设计算。同时采用ANSYS软件将水闸的底板、闸墩和地基作为一个整体，建立了水闸闸室结构有限元计算模型。在完建期、正常挡水和设计洪水三种工况下，分别进行静力计算，对比分析位移变化趋势和应力变化情况。文章利用ANSYS有限元软件计算的高效性，以底板厚度为设计变量建立多个有限元计算模型，对比分析不同底板厚度闸室结构的受力情况。在满足实际工程需要的情况下，计算出了较为合理的底板厚度，对闸室结构进行了局部的优化，最终达到节省投资的目的。最后通过结构设计的扩展应用，对不同的地基条件进行对比分析，通过分析计算结果得到一些有益的结论。
[Abstract]:Yao Lake Sluice located in Maqiu Town of Nanchang High-Tech Development Zone, located at the east exit of Yao Lake, is the main channel for discharging water to the Hongqi waterlogging station in the area of Yao Lake. The sluice is a medium-sized project with comprehensive benefits of irrigation, aquaculture and tourism development. In the traditional design of sluice, people usually adopt the method of repeated design, which makes the design tedious on the one hand; on the other hand, the final scheme is greatly affected by the original scheme and designer's experience, so the final scheme is not always the best scheme. At the same time, the traditional calculation method of sluice structure is to separate the bottom plate and pier in the sluice chamber. Although this method is simple, it is difficult to reflect the overall effect of the structure. The more reasonable analysis method is to take the whole sluice structure and foundation as a whole and consider the interaction between the structure and the foundation. This paper takes Yao Lake sluice as an example to analyze and compare the design arrangement of sluice and calculate the initial design. At the same time, the finite element calculation model of sluice chamber structure is established by using ANSYS software, which takes the bottom plate, pier and foundation of sluice lock as a whole. The static calculation was carried out under the three working conditions of normal water retaining and design flood during the construction period, and the trend of displacement and the change of stress were compared and analyzed. In this paper, the high efficiency of ANSYS finite element software is used to establish several finite element calculation models with the thickness of the floor as the design variable, and the stress situation of the sluice chamber structure with different floor thickness is compared and analyzed. In order to meet the needs of practical engineering, the reasonable thickness of bottom plate is calculated, and the structure of the sluice chamber is partially optimized to achieve the purpose of saving investment. Finally, through the extended application of structural design, the different foundation conditions are compared and analyzed, and some useful conclusions are obtained through the analysis and calculation results.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV663

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