燃料抓取机抗震设计分析  

Seismic Design and Analysis for Spent Fuel Pool Bridge Crane

作　　者：张可丰[1] 奚梅英[1] 徐定耿[1] 曹艳芳[1] 谢永诚[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核电工程与技术》2008年第4期22-27,共6页Nuclear Power Engineering and Technology

摘　　要：燃料抓取机是燃料厂房内的主要吊装设备之一，位于燃料厂房乏燃料贮存水池上方操作。其功能是在燃料运输通道、乏燃料水池和装料池之间转运乏燃料组件。燃料抓取机虽为非安全级和非抗震类设备，但为防止其脱离轨道跌落后对其他安全级部件造成损坏或失效，抗震设计应确保其在安全停堆地震状况下不发生自身倒塌或脱离轨道跌落事故。故该设备具有抗SSE地震的要求。本文采用ANSYS的实体单元和梁单元组合建立燃料抓取机的有限元模型，通过静态分析和反应谱分析方法计算了抓取机在自重和SSE地震下的应力状态，并根据规范要求对其进行评定，验证了抓取机满足抗震鉴定要求。The spent fuel pool bridge crane, located over the spent fuel pool, is one of the key handling equipment in the fuel building. It is used to move the spent fuel assemblies among the fuel transfer canal, the spent fuel pool, and the cask loading pit. The spent fuel pool bridge crane performs non-safety-related functions and is of non-Seismic Category. However, the structural integrity of the equipment should be maintained under safe shutdown earthquake so as to preclude its collapse and consequent interaction with safety-related components, which means it is required to withstand a SSE earthquake. In this paper, finite element model with solid element and 3-D beam element is built for spent fuel pool bridge using ANSYS code. Stresses of the equipment subjected to deadweight and SSE is calculated with methods of static analysis and response spectra analysis, respectively. Also the stress evaluation is performed according to relative code requirements. The evaluation results show that seismic design of the spent fuel pool bridge crane is appropriate.

关 键 词：燃料抓取机 有限元 抗震设计分析 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TL24[自动化与计算机技术—控制科学与工程]