套筒式烟囱钢内筒腐蚀受损的分析及处理
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摘要
针对某电厂套筒式烟囱建成使用仅4年,钢内筒就严重腐蚀受损的工程案例,利用有限元分析方法对该烟囱进行分析计算(包括腐蚀受损前后两种工况),研究结构动力特性。经对比分析腐蚀前后两种结构在竖向和横向荷载作用下的应力水平和稳定性,对腐蚀受损进行评估,并提出相应的处理方案。
An inner steel cylinder of a telescopic chimney has severely corroded only 4 years after the comstruction. In this paper.The finite element model(including before corrosion and after corrosion) dynamic analysis of the telescopic chimney was caried out.Several comparisons in the stress level and stability of the chimney under both vertical load and lateral dynamic load were presented.Assessments of the corrosion and corresponding method for treating this problem were also proposed here.
An inner steel cylinder of a telescopic chimney has severely corroded only 4 years after the comstruction. In this paper.The finite element model(including before corrosion and after corrosion) dynamic analysis of the telescopic chimney was caried out.Several comparisons in the stress level and stability of the chimney under both vertical load and lateral dynamic load were presented.Assessments of the corrosion and corresponding method for treating this problem were also proposed here.
引文
[1]中华人民共和国建设部.GB 50051—2002烟囱设计规范[S].北京:中国计划出版社,2002. Ministry of Construction of the People's Republic of China.GB 50051—2002 Code for design of chim- ??neys[S].Beijing:China Planning Press,2002.(in Chinese )
[2]中华人民共和国建设部.GB 50009—2001建筑结构荷载规范[S].北京:中国建筑工业出版社, 2002. Ministry of Construction of the People's Republic of China.GB 50009—2001 Load code for the design of building structures[S].Beijing:China Planning Press,2002.(in Chinese)
[3]江雨声,周雷靖.240 m双钢内筒烟囱的有限元分析[J].武汉大学学报(工学版),2008,41:218-221. Jiang Yusheng,Zhou Leijing.Finite element analysis of 240 m double inner steel cylinder chimney[J].Engineering Journal of Wuhan University,2008,41: 218-221.(in Chinese)
[4]刘春光.塔架式烟囱结构动力特性研究[J].武汉大学学报(工学版),2010,43:275-277. Liu Chunguang.Dynamic Characteristics of Framed Steel chimney structure[J].Engineering Journal of Wuhan University,2010,43:275-277.(in Chinese)
[5]廖洁,孙景江,于澎涛.火电厂悬挂式钢内筒烟囱地震反应分析[J].土木工程学报,2010,57(S1): 173-176. Liao Jie,Sun Jingjiang,Yu Pengtao.Seismic response analysis on chimney with suspensory inner steel cylinder of thermal power plants[J].China Civil Engineering Journal,2010,57(S1):173-176.(in Chinese )
[6]蔡洪亮,陈飞,宋声.多管式钢内简烟囱结构设计计算[J].特种结构,2002,19(3):38-41. Cai Hongliang,Chen Fei,Song Sheng.Design calculations of multi-tube inner steel cylinder chimney structure[J].Special Structures,2002,19(3):38- 41.(in Chinese)
[7]祁德庆,于春海,王剑平.高耸结构物动力分析与振动控制[J].结构工程师,2004,20(4):29-32. Qi Deqing,Yu Chunhai,Wang Jianping.Dynamic analysis & vibration control to tower and mast structures [J].Structural Engineers,2004,20(4):29- 32.(in Chinese)
[8]Devdas Menon,P Srinivasa Rao.Estimation of along-wind moments in RC chimneys[J].Engineering Structures,1997,19(1):71-78.
[2]中华人民共和国建设部.GB 50009—2001建筑结构荷载规范[S].北京:中国建筑工业出版社, 2002. Ministry of Construction of the People's Republic of China.GB 50009—2001 Load code for the design of building structures[S].Beijing:China Planning Press,2002.(in Chinese)
[3]江雨声,周雷靖.240 m双钢内筒烟囱的有限元分析[J].武汉大学学报(工学版),2008,41:218-221. Jiang Yusheng,Zhou Leijing.Finite element analysis of 240 m double inner steel cylinder chimney[J].Engineering Journal of Wuhan University,2008,41: 218-221.(in Chinese)
[4]刘春光.塔架式烟囱结构动力特性研究[J].武汉大学学报(工学版),2010,43:275-277. Liu Chunguang.Dynamic Characteristics of Framed Steel chimney structure[J].Engineering Journal of Wuhan University,2010,43:275-277.(in Chinese)
[5]廖洁,孙景江,于澎涛.火电厂悬挂式钢内筒烟囱地震反应分析[J].土木工程学报,2010,57(S1): 173-176. Liao Jie,Sun Jingjiang,Yu Pengtao.Seismic response analysis on chimney with suspensory inner steel cylinder of thermal power plants[J].China Civil Engineering Journal,2010,57(S1):173-176.(in Chinese )
[6]蔡洪亮,陈飞,宋声.多管式钢内简烟囱结构设计计算[J].特种结构,2002,19(3):38-41. Cai Hongliang,Chen Fei,Song Sheng.Design calculations of multi-tube inner steel cylinder chimney structure[J].Special Structures,2002,19(3):38- 41.(in Chinese)
[7]祁德庆,于春海,王剑平.高耸结构物动力分析与振动控制[J].结构工程师,2004,20(4):29-32. Qi Deqing,Yu Chunhai,Wang Jianping.Dynamic analysis & vibration control to tower and mast structures [J].Structural Engineers,2004,20(4):29- 32.(in Chinese)
[8]Devdas Menon,P Srinivasa Rao.Estimation of along-wind moments in RC chimneys[J].Engineering Structures,1997,19(1):71-78.
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