核电站常规岛主厂房基于性能的抗震分析
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摘要
常规岛主厂房是一种特殊的工业建筑结构,具有质量、刚度分布不均、多错层等特点,其抗震重在保证电厂运行功能在设防预期的水准地震作用下不中断,避免重大设备损坏而造成的严重财产损失。基于性能的抗震设计方法是目前国际上先进的抗震设计方法。首次将设计流程引入到核电站常规岛主厂房结构抗震设计中,在小震和中震弹性分析基础上,采用基于纤维模型理论的PER-FORM-3D软件对典型常规岛主厂房整体结构进行大震动力弹塑性时程分析。并参考美国基于性能抗震规程ASCE-41及FEMA356制定构件变形性能指标,对构件的变形响应进行评估。最后针对主厂房的抗震性能给出了相应的设计建议。
Due to the requirements of the machine equipment,the main machine hall is irregular in mass and stiffness.It is important to notice that the essential purpose of main machine hall is to prevent serious damage to important equipment.Performance-based design method of structures is considered to be an international advanced seismic design idea,which require designers to quantify the behavior of the structure components due to multiple performance targets that will be adopted in design procedure.Based on the elastic analysis under frequent and moderate earthquake action,inelastic time history analysis under rare earthquake is carried out with PERFORM3D,in which the fiber model is used.To evaluate the deformation performance of the components,a guideline is proposed in this paper based on ASCE-41 and FEMA356.It can also be concluded that in this way the energy dissipated is differ from the one expected.Design suggestion is given in this paper according to the structure performance.
Due to the requirements of the machine equipment,the main machine hall is irregular in mass and stiffness.It is important to notice that the essential purpose of main machine hall is to prevent serious damage to important equipment.Performance-based design method of structures is considered to be an international advanced seismic design idea,which require designers to quantify the behavior of the structure components due to multiple performance targets that will be adopted in design procedure.Based on the elastic analysis under frequent and moderate earthquake action,inelastic time history analysis under rare earthquake is carried out with PERFORM3D,in which the fiber model is used.To evaluate the deformation performance of the components,a guideline is proposed in this paper based on ASCE-41 and FEMA356.It can also be concluded that in this way the energy dissipated is differ from the one expected.Design suggestion is given in this paper according to the structure performance.
引文
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[2]Seismic design of reinforced concrete structures for controlled inelastic response(design concepts)[S].ComitéEuro-International du Béton-CEB,2003.
[3]Guidelines for seismic performance evaluation of reinforced concrete buildings[S].Architectural Institute of Japan,2004.
[4]ASCE 41.Seismic rehabilitation of buildings[S].American Society of Civil Engineers,2006.
[5]FEMA 356.Prestandard and Commentary for the seismic rehabilitation of buildings[S].Federal Emergency Management Agency,2000.
[6]Graham H.Dr.Powell.A State of the art educational event performance based design using nonlinear analysis———An intense and practical semi-nar on nonlinear modeling and analysis with an emphasis on the use of CSI's Perform-3D Software[R].computer and structures,2007.
[7]周玉.宁德核电站常规岛主厂房计算书[R].广州:广东省电力设计研究院,2009.
[8](CECS160:2004建筑工程抗震性态设计通则[S].北京:中国建筑工业出版社,2004.
[9]ATC-40Seismic Evaluation and Retrofit of Concrete Buildings[S].Applied Technology Council,1996.
[10]DL 5022-93火力发电厂土建结构设计技术规定[S].北京:中国建筑工业出版社,1993.
[11]GBJ-2002建筑抗震设计规范[S].
[12]FEMA 274.NEHRP Commentary on the Guidelines for Seismic Rehabilitation of Buildings.Federal Emergency Management Agency,1997.
[13]GB50010—2002钢筋混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
[14]韩小雷,陈学伟,郑宜,等.足尺钢框架振动台试验及动力弹塑性数值模拟[J].地震工程与工程振动2,008,28(6):134-141.
[15]黄超,季静,韩小雷,等.基于性能的既有钢筋混凝土建筑结构抗震评估与加固技术研究[J].地震工程与工程振动,20072,7(5):72-79.
[16]韩小雷,郑宜,季静.美国基于性能的高层建筑结构抗震设计规范[J].地震工程与工程振动,2008,28(1):64-70.
[17]韩小雷,何伟球,郑宜,等.天朗海峰国际中心结构可行性报告[R].广州:华南理工大学高层建筑结构研究所,2008.
[18]韩小雷,何伟球,郑宜,等.广州中洲中心二期观光门结构可行性报告[R].广州:华南理工大学高层建筑结构研究所,2008.
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