基于反应位移法的核化工地下管沟抗震计算和分析
详细信息 查看官网全文
- 英文论文题名：Nuclear chemical engineering underground pipe chase seismic calculation based on the response displacement method
- 论文作者：胡立华 ; 叶颖 ; 孔庆勋
- 英文论文作者：HU Li-hua ; YE Ying ; KONG Qing-xun ; CHINA NUCLEAR POWER ENGENEERING Co. ; LTD.
- 年：2015
- 作者机构：中国核电工程有限公司;
- 论文关键词：反应位移法 ; 抗震设计 ; 地下工程
- 英文论文关键词：response displacement method ; seismic design ; underground engineering
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第6册（核化学与放射化学分卷、核化工分卷）
- 语种：中文
- 分类号：TQ08
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：6
- 文件大小：373k
- 原文格式：O
- 会议级别：全国
摘要
核化工管沟因为工艺、防护等的要求,结构设计时需要考虑地震作用下管沟的安全性。按照管沟的重要性不同,管沟分为抗震Ⅰ类管沟、抗震Ⅱ类管沟。但是目前依然缺乏针对核化工地下管沟的抗震设计规范和准则。本文借鉴地铁和沉管隧道等已发展成熟的抗震设计经验,考虑到地下结构地震中的响应规律和地上结构有着很大的不同,地下结构由于受到土体的包围,震动会受到约束很快收敛,并与地层的震动保持一致,因而不会产生比周围地层更为强烈的震动,同时结合核化工管沟自身的特点,利用反应位移法对某核化工地下管沟进行地震响应分析。计算中管沟采用梁单元进行模拟,用ANSYS对计算模型进行地震分析。计算结果表明,反应位移法是精度较高、计算简便、适用性很强的拟静力计算方法,可以为核化工地下结构的抗震设计提供借鉴。
On the basis of the requirement of processing and protection,the safety under earthquake action should be considered in structure design.Depending on the importance of pipe chase,it is differentiated into seismic grade Ⅰ and seismic grade Ⅱ.At present,code and criteria for seismic design of nuclear chemistry underground pipe chase are lacked.The mature experience of seismic design in subway and immersed tunnel is taken for reference in this paper,considering the response law in earthquake of underground structure is very different from overground structure,because the underground structure suffer soil surround,quake suffer restraint and convergence quickly,which bring into correspondence with stratum,so could't stronger quake of the underground structure will not take place.At the same time,combining the self characteristics of nuclear chemistry pipe chase,seismic response for a nuclear chemical underground pipe channel has been analysised by using the response displacement method.In the calculation,pipe chase is simulate by beam element,and ANSYS is used for seismic analysis.The calculation results show that,the response displacement method is a pseudo static calculation method with high accuracy and widespread applicability,which is also simple and convenient for calculation,and can be used in nuclear chemistry underground pipe chase seismic calculation.
On the basis of the requirement of processing and protection,the safety under earthquake action should be considered in structure design.Depending on the importance of pipe chase,it is differentiated into seismic grade Ⅰ and seismic grade Ⅱ.At present,code and criteria for seismic design of nuclear chemistry underground pipe chase are lacked.The mature experience of seismic design in subway and immersed tunnel is taken for reference in this paper,considering the response law in earthquake of underground structure is very different from overground structure,because the underground structure suffer soil surround,quake suffer restraint and convergence quickly,which bring into correspondence with stratum,so could't stronger quake of the underground structure will not take place.At the same time,combining the self characteristics of nuclear chemistry pipe chase,seismic response for a nuclear chemical underground pipe channel has been analysised by using the response displacement method.In the calculation,pipe chase is simulate by beam element,and ANSYS is used for seismic analysis.The calculation results show that,the response displacement method is a pseudo static calculation method with high accuracy and widespread applicability,which is also simple and convenient for calculation,and can be used in nuclear chemistry underground pipe chase seismic calculation.
引文
[1]郑永来,等.地下结构抗震[M].上海:同济大学出版社,2005:166-170.
[2]川岛一彦.地下构造物の耐震设计[M].日本:鹿岛出版株式会社,1994.
[3]HE CHUAN,KOIZUMI ATSUSHI.Study on seismic behavior and seismic design methods in transverse direction of shield tunnels[J].Structural Engineering And Mechanics,2001,11(6):651-662.
[4]BARDET J P,ICHII K,LIN C H.EERA-a computer program for equivalent-linear earthquake site response analyses of layered soil deposits[M].2000.
[5]GB 50267-97核电厂抗震设计规范[S].北京:计划出版社,1998.
[2]川岛一彦.地下构造物の耐震设计[M].日本:鹿岛出版株式会社,1994.
[3]HE CHUAN,KOIZUMI ATSUSHI.Study on seismic behavior and seismic design methods in transverse direction of shield tunnels[J].Structural Engineering And Mechanics,2001,11(6):651-662.
[4]BARDET J P,ICHII K,LIN C H.EERA-a computer program for equivalent-linear earthquake site response analyses of layered soil deposits[M].2000.
[5]GB 50267-97核电厂抗震设计规范[S].北京:计划出版社,1998.