既有工业厂房钢吊车梁疲劳性能预后分析
|
摘要
为更好地理解工业厂房钢结构的疲劳性能衰退机理,有效预防结构发生脆性断裂,发展了面向既有工业厂房钢结构的疲劳性能预后分析方法.基于跨尺度界面功平衡原理建立了工业厂房钢结构疲劳损伤多尺度模型,量化了结构既有缺陷引起的损伤,研究了工业厂房钢结构关键构件——钢吊车梁的疲劳损伤演化和复合型疲劳裂纹扩展过程.疲劳预后分析结果表明:钢吊车梁焊缝区域的损伤在初始阶段增长较为缓慢,后期急剧加快,论证了工程中常用的线性Miner损伤准则会导致评估结果过于保守;变截面钢吊车梁的插板与封板连接处的焊缝区域最容易发生疲劳失效,本次研究的吊车梁裂纹深度a超过5 mm后,裂纹迅速扩展,应对其进行加固处理;主要易损部位的裂纹对其他易损部位的疲劳性能影响较大.
To better reveal the inner fatigue deterioration mechanism of steel industrial plants and effectively protect the plants from brittle fractures, a fatigue prognosis analysis method was proposed. Multi-scale fatigue damage models were established based on the power balance principle at the cross-scale interface. The damage of the structures caused by existing defects was quantified. Fatigue damage evolution and mixed mode crack propagation of the vulnerable positions were analyzed. Fatigue prognosis results illustrated that the fatigue damage of the steel crane runway girder evolved slowly at the initial phase and accelerated rapidly at the final phase, which proved that the assessment results based on Miner's law are too conservative. Fatigue failure more likely occurred at the weld joint between the spile and the end sealing plate of the steel crane runway girder. The studied fatigue crack grew rapidly when the length a reached 5 mm, in which some actions should be taken. The crack in the serious position had great influence on the fatigue performance of other vulnerable parts.
To better reveal the inner fatigue deterioration mechanism of steel industrial plants and effectively protect the plants from brittle fractures, a fatigue prognosis analysis method was proposed. Multi-scale fatigue damage models were established based on the power balance principle at the cross-scale interface. The damage of the structures caused by existing defects was quantified. Fatigue damage evolution and mixed mode crack propagation of the vulnerable positions were analyzed. Fatigue prognosis results illustrated that the fatigue damage of the steel crane runway girder evolved slowly at the initial phase and accelerated rapidly at the final phase, which proved that the assessment results based on Miner's law are too conservative. Fatigue failure more likely occurred at the weld joint between the spile and the end sealing plate of the steel crane runway girder. The studied fatigue crack grew rapidly when the length a reached 5 mm, in which some actions should be taken. The crack in the serious position had great influence on the fatigue performance of other vulnerable parts.
引文
[1] 王若林.钢结构原理[M].南京:东南大学出版社,2016WANG Ruolin.Principle of steel structure[M].Nanjing:Southeast University Press,2016
[2] 刘洪波,谢礼立,邵永松.钢结构箱形柱与工字梁刚性节点有限元分析[J].哈尔滨工业大学学报,2007,39(8):1211LIU Hongbo,XIE Lili,SHAO Yongsong.Finite element analyses of the rigid connections with steel box columns and I section beams[J].Journal of Harbin Institution of Technology,2007,39(8):1211.DOI:10.3321/j.issn:0367-6234.2007.08.007
[3] SURESH S.材料的疲劳[M]第2版.北京:国防工业出版社,1993SURESH S.Fatigue of materials[M].2nd ed.Beijing:National Defense Industrial Press,1993
[4] FARRAR C R,LIEVEN N A J.Damage prognosis:the future of structural health monitoring[J].Philosophical Transactions,2007,365(1851):623.DOI:10.1098/rsta.2006.1927
[5] 李兆霞.大型土木结构多尺度损伤预后的现状、研究思路与前景[J].东南大学学报(自然科学版),2013,43(5):1111LI Zhaoxia.State of the art in multi-scale damage prognosis for major infrastructures[J].Journal of Southeast University (Natural Science Edition),2013,43(5):1111.DOI:10.3969/j.issn.1001-0505.2013.05.034
[6] LI Z X,CHAN T H T,YU Y,et al.Concurrent multi-scale modeling of civil infrastructures for analyses on structural deterioration-Part I:modeling methodology and strategy[J].Finite Elements in Analysis & Design,2009,45(11):782.DOI:10.1016/j.finel.2009.06.013
[7] LIU H B,XING K T.Assessment of fatigue reliability of steel crane structures in service based on damage cumulative model[C]//Proceedings of the Fourth International Conference on Advances in Steel Structures.Shanghai,Holland:Elsevier,Volume II 2005:1121.DOI:10.1016/B978-008044637-0/50165-7
[8] 常好诵.工业建筑钢结构疲劳测试、评估及加固研究[D].天津:天津大学,2014CHANG Haosong.The research of fatigue test evaluation and strengthening for industrial steel buildings[D].Tianjin:Tianjin University,2014
[9] 郭春红,弓俊青,惠云玲,等.带裂纹钢吊车梁剩余寿命评估[J].钢结构,2010,25(11):15GUO Chunhong,GONG Junqing,HUI Yunling,et al.Assessment of crane girder fatigue life with initial crack[J].Steel Construction,2010,25(11):15.DOI:10.3969/j.issn.1007-9963.2010.11.005
[10]幸坤涛.宝钢电炉管坯连铸主厂房原料跨(AB跨)吊车梁结构检测鉴定报告[R].北京:国家工业建构筑物质量安全监督检验中心,2015XING Kuntao.The detection report of raw material span (AB span) crane girder of Baosteel electric furnace tube billet casting plant[R].Beijing:China Nation Center Quality and Safety Supervision Testing of industrial structures,2015
[11]孙宾.损伤跨尺度演化致结构失效过程的模拟和分析方法[D].南京:东南大学,2016SUN Bin.Simulation and analysis method of failure process of engineering structures due to trans-scale damage evolution[D].Nanjing:Southeast University,2016
[12]ZHENG Z Y,LI Z X,CHEN Z W.Adaptive multi-scale analyses on structural failure considering localized damage evolution on vulnerable joints[J].Archives of Civil & Mechanical Engineering,2014,14(2):304.DOI:10.1016/j.acme.2013.08.004
[13]姚继涛,谷慧.工业厂房吊车荷载的概率模型和组合方法[J].建筑结构学报,2016,37(11):1YAO Jitao,GU Hui.Probability model and combination method of crane load of industrial building[J].Journal of Building Structures,2016,37(11):1.DOI:10.14006/j.jzjgxb.2016.11.020
[14]中华人民共和国建设部.钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003Ministry of Construction of China.Code for design of steel structures:GB 50017—2003[S].Beijing:China Planning Press,2003
[15]LEMAITRE J.A course on damage mechanics[M].Berlin:Springer Verlag,1996
[16]LI Z X,CHAN T H T,KO J M.Determination of effective stress range and its application on fatigue stress assessment of existing bridges[J].International Journal of Solids and Structures,2002,39(9):2401.DOI:10.1016/S0020-7683(02)00120-8
[17]李兆霞,王莹.在役桥梁结构疲劳监测与评估[M].北京:科学出版社,2012LI Zhaoxia,WANG Ying.Fatigue analyses and evaluation of existing bridges with monitoring data[M].Beijing:Science Press,2002
[18]SUN B,YANG L,GUO Y.A high-cycle fatigue accumulation model based on electrical resistance for structural steels[J].Fatigue & Fracture of Engineering Materials & Structures,2007,30(11):1052.DOI:10.1111/j.1460-2695.2007.01175.x
[19]KUNA M.Finite elements in fracture mechanics[M].Berlin:Springer Netherlands,2013
[20]American Society of Mechanical Engineers.Rules for inservice inspection of nuclear power plant components[S].New York:American Society of Mechanical Engineers,2013
[21]PARIS P,ERDOGAN F.A critical analysis of crack propagation laws[J].Transactions of the ASME,1963,85(4):528.DOI:10.1115/1.3656900
[22]BARSOUM Z.Residual stress analysis and fatigue assessment of welded stress structures[D].Sweden:Kungliga Tekniska Hogskolan Stockholm,2008
[23]British Standards Institution.Steel,concrete and composite bridges:BSI 5400—Part 10[S].London:BSI,1980
[2] 刘洪波,谢礼立,邵永松.钢结构箱形柱与工字梁刚性节点有限元分析[J].哈尔滨工业大学学报,2007,39(8):1211LIU Hongbo,XIE Lili,SHAO Yongsong.Finite element analyses of the rigid connections with steel box columns and I section beams[J].Journal of Harbin Institution of Technology,2007,39(8):1211.DOI:10.3321/j.issn:0367-6234.2007.08.007
[3] SURESH S.材料的疲劳[M]第2版.北京:国防工业出版社,1993SURESH S.Fatigue of materials[M].2nd ed.Beijing:National Defense Industrial Press,1993
[4] FARRAR C R,LIEVEN N A J.Damage prognosis:the future of structural health monitoring[J].Philosophical Transactions,2007,365(1851):623.DOI:10.1098/rsta.2006.1927
[5] 李兆霞.大型土木结构多尺度损伤预后的现状、研究思路与前景[J].东南大学学报(自然科学版),2013,43(5):1111LI Zhaoxia.State of the art in multi-scale damage prognosis for major infrastructures[J].Journal of Southeast University (Natural Science Edition),2013,43(5):1111.DOI:10.3969/j.issn.1001-0505.2013.05.034
[6] LI Z X,CHAN T H T,YU Y,et al.Concurrent multi-scale modeling of civil infrastructures for analyses on structural deterioration-Part I:modeling methodology and strategy[J].Finite Elements in Analysis & Design,2009,45(11):782.DOI:10.1016/j.finel.2009.06.013
[7] LIU H B,XING K T.Assessment of fatigue reliability of steel crane structures in service based on damage cumulative model[C]//Proceedings of the Fourth International Conference on Advances in Steel Structures.Shanghai,Holland:Elsevier,Volume II 2005:1121.DOI:10.1016/B978-008044637-0/50165-7
[8] 常好诵.工业建筑钢结构疲劳测试、评估及加固研究[D].天津:天津大学,2014CHANG Haosong.The research of fatigue test evaluation and strengthening for industrial steel buildings[D].Tianjin:Tianjin University,2014
[9] 郭春红,弓俊青,惠云玲,等.带裂纹钢吊车梁剩余寿命评估[J].钢结构,2010,25(11):15GUO Chunhong,GONG Junqing,HUI Yunling,et al.Assessment of crane girder fatigue life with initial crack[J].Steel Construction,2010,25(11):15.DOI:10.3969/j.issn.1007-9963.2010.11.005
[10]幸坤涛.宝钢电炉管坯连铸主厂房原料跨(AB跨)吊车梁结构检测鉴定报告[R].北京:国家工业建构筑物质量安全监督检验中心,2015XING Kuntao.The detection report of raw material span (AB span) crane girder of Baosteel electric furnace tube billet casting plant[R].Beijing:China Nation Center Quality and Safety Supervision Testing of industrial structures,2015
[11]孙宾.损伤跨尺度演化致结构失效过程的模拟和分析方法[D].南京:东南大学,2016SUN Bin.Simulation and analysis method of failure process of engineering structures due to trans-scale damage evolution[D].Nanjing:Southeast University,2016
[12]ZHENG Z Y,LI Z X,CHEN Z W.Adaptive multi-scale analyses on structural failure considering localized damage evolution on vulnerable joints[J].Archives of Civil & Mechanical Engineering,2014,14(2):304.DOI:10.1016/j.acme.2013.08.004
[13]姚继涛,谷慧.工业厂房吊车荷载的概率模型和组合方法[J].建筑结构学报,2016,37(11):1YAO Jitao,GU Hui.Probability model and combination method of crane load of industrial building[J].Journal of Building Structures,2016,37(11):1.DOI:10.14006/j.jzjgxb.2016.11.020
[14]中华人民共和国建设部.钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003Ministry of Construction of China.Code for design of steel structures:GB 50017—2003[S].Beijing:China Planning Press,2003
[15]LEMAITRE J.A course on damage mechanics[M].Berlin:Springer Verlag,1996
[16]LI Z X,CHAN T H T,KO J M.Determination of effective stress range and its application on fatigue stress assessment of existing bridges[J].International Journal of Solids and Structures,2002,39(9):2401.DOI:10.1016/S0020-7683(02)00120-8
[17]李兆霞,王莹.在役桥梁结构疲劳监测与评估[M].北京:科学出版社,2012LI Zhaoxia,WANG Ying.Fatigue analyses and evaluation of existing bridges with monitoring data[M].Beijing:Science Press,2002
[18]SUN B,YANG L,GUO Y.A high-cycle fatigue accumulation model based on electrical resistance for structural steels[J].Fatigue & Fracture of Engineering Materials & Structures,2007,30(11):1052.DOI:10.1111/j.1460-2695.2007.01175.x
[19]KUNA M.Finite elements in fracture mechanics[M].Berlin:Springer Netherlands,2013
[20]American Society of Mechanical Engineers.Rules for inservice inspection of nuclear power plant components[S].New York:American Society of Mechanical Engineers,2013
[21]PARIS P,ERDOGAN F.A critical analysis of crack propagation laws[J].Transactions of the ASME,1963,85(4):528.DOI:10.1115/1.3656900
[22]BARSOUM Z.Residual stress analysis and fatigue assessment of welded stress structures[D].Sweden:Kungliga Tekniska Hogskolan Stockholm,2008
[23]British Standards Institution.Steel,concrete and composite bridges:BSI 5400—Part 10[S].London:BSI,1980