竖向地震作用对超大型冷却塔结构的影响分析
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摘要
采用ABAQUS有限元分析软件,分别对不考虑和考虑土-结构相互作用的超大型冷却塔结构进行了弹性和弹塑性时程分析,研究了竖向地震作用对超大型冷却塔结构的影响以及考虑土-结构相互作用后竖向地震作用影响的差异。结果表明:竖向地震作用对冷却塔塔壳的竖向加速度和竖向位移、塔壳喉部主应力影响明显,对支柱轴力有一定影响,对结构水平向的地震响应影响相对较小;考虑土-结构相互作用后,竖向地震作用对支柱的竖向加速度、支柱内力以及塔壳喉部的主应力影响略有增大。
Using ABAQUS finite element analysis software,elastic and elastic-plastic time-history analysis are conducted respectively on super large cooling tower considering soil-structure interaction or not.The influence of vertical earthquake action on super large cooling tower and the difference after considering soil-structure interaction are investigated.The results show that the vertical earthquake action affects obviously on vertical acceleration and vertical displacement of upper structure and the principal stress at the throat of the cooling tower.It also affects axial force of columns to a certain extent.But the influence of vertical earthquake action on the horizontal seismic response of structure is relatively minor.After considering the soil-structure interaction,the influence of vertical earthquake action on the vertical acceleration and the internal forces of columns and the principal stress at the throat of the cooling tower is slightly increased.
Using ABAQUS finite element analysis software,elastic and elastic-plastic time-history analysis are conducted respectively on super large cooling tower considering soil-structure interaction or not.The influence of vertical earthquake action on super large cooling tower and the difference after considering soil-structure interaction are investigated.The results show that the vertical earthquake action affects obviously on vertical acceleration and vertical displacement of upper structure and the principal stress at the throat of the cooling tower.It also affects axial force of columns to a certain extent.But the influence of vertical earthquake action on the horizontal seismic response of structure is relatively minor.After considering the soil-structure interaction,the influence of vertical earthquake action on the vertical acceleration and the internal forces of columns and the principal stress at the throat of the cooling tower is slightly increased.
引文
[1]GB/T50102-2003,工业循环水冷却设计规范[S]GB/T 50102-2003,Code for Design of Cooling forIndustrial Recirculating Water[S](in Chinese)
[2]张玉梅,宋玉普,张晓东.多向地震耦合作用下高耸结构土-结构动力相互研究[J].工程力学,2008,25(2):154～159Zhang Yu-mei,Song Yu-pu,Zhang Xiao-dong.Investigating the Soil-structure Dynamic Interaction forTall Buildings under Coupled Action of Multi-directionalEarthquake[J].Engineering Mechanics,,2008,25(2):154～159(in Chinese)
[3]陈健云,周晶,马恒春,朱彤.高耸烟囱结构竖向地震响应的模型试验研究及分析[J].建筑结构学报,2005,26(2):87～93Chen Jian-yun,Zhou Jing,Ma Heng-chun,Zhu Tong.Study on Model Test of High-rise Chimney Subjected toVertical Seismic Action[J].Journal of BuildingStructures,2005,26(2):87～93(in Chinese)
[4]李铁英.高层建筑结构在地震作用下的竖向振动研究[J].太原工业大学学报,1997,28(S1):86～90Li Tie-ying.Vertical Vibration Analysis of High-riseBuilding in Seismic Loading[J].Journal of TaiyuanUniversity of Technology,1997,28(S1):86～90(inChinese)
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[6]尚守平,朱志辉,吴方伯.土-箱基-框架结构动力相互作用大比例模型野外试验研究[J].工程力学,2006,23(10):118～124Shang Shou-ping,Zhu Zhi-hui,Wu Fang-bo.Large-scale Field Model Test on Dynamic Soil-box Foundation-Structure Interaction[J].Engineering Mechanics,,2006,23(10):118～124(in Chinese)
[7]Feng Z L,Lewis R W.Optimal Estimate of In-situGround Stress from Displacement Measurements[J].Journal of Geotechnical and GeoenvironmentalEngineering,1987,21(11):15～20
[8]武芸.大比例土-桩基-框架模型动力相互作用试验模拟分析[D].湖南:湖南大学,2005Wu Yun.The Simulation and Analysis of Large ScaleSoil-Pile Raft Foundation-Frame Model for DynamicInteraction[D].Hunan:Hunan University,2005(inChinese)
[9]Yassin M H M.Nonlinear Analysis of PrestressedConcrete Structures under Monotonic and Cyclic Loads[D].California:University of California.Berkeley,1994
[10]GB50010-2002,混凝土结构设计规范[S]GB 50010-2002,Code for Design of Concrete Structures[S](in Chinese)
[11]费康,张建伟.ABAQUS在岩土工程中的应用[M].北京:中国水利水电出版社,2010Fei Kang,Zhang Jian-wei.Application of ABAQUS onGeotechnical Engineering[M].Beijing:China WaterPower Press,2010(in Chinese)
[2]张玉梅,宋玉普,张晓东.多向地震耦合作用下高耸结构土-结构动力相互研究[J].工程力学,2008,25(2):154～159Zhang Yu-mei,Song Yu-pu,Zhang Xiao-dong.Investigating the Soil-structure Dynamic Interaction forTall Buildings under Coupled Action of Multi-directionalEarthquake[J].Engineering Mechanics,,2008,25(2):154～159(in Chinese)
[3]陈健云,周晶,马恒春,朱彤.高耸烟囱结构竖向地震响应的模型试验研究及分析[J].建筑结构学报,2005,26(2):87～93Chen Jian-yun,Zhou Jing,Ma Heng-chun,Zhu Tong.Study on Model Test of High-rise Chimney Subjected toVertical Seismic Action[J].Journal of BuildingStructures,2005,26(2):87～93(in Chinese)
[4]李铁英.高层建筑结构在地震作用下的竖向振动研究[J].太原工业大学学报,1997,28(S1):86～90Li Tie-ying.Vertical Vibration Analysis of High-riseBuilding in Seismic Loading[J].Journal of TaiyuanUniversity of Technology,1997,28(S1):86～90(inChinese)
[5]陈跃庆,吕西林,李培振,等.分层土-基础-高层框架结构相互作用体系振动台模型试验研究[J].地震工程与工程振动,2001(3):104～112Chen Yue-qing Lv Xi-lin,Li Pei-zhen et al.ShakingTable Testing for Layered Soil-foundation-structureInteraction System[J].Earthquake Engineering andEngineering Vibration,2001,(3):104～112(inChinese)
[6]尚守平,朱志辉,吴方伯.土-箱基-框架结构动力相互作用大比例模型野外试验研究[J].工程力学,2006,23(10):118～124Shang Shou-ping,Zhu Zhi-hui,Wu Fang-bo.Large-scale Field Model Test on Dynamic Soil-box Foundation-Structure Interaction[J].Engineering Mechanics,,2006,23(10):118～124(in Chinese)
[7]Feng Z L,Lewis R W.Optimal Estimate of In-situGround Stress from Displacement Measurements[J].Journal of Geotechnical and GeoenvironmentalEngineering,1987,21(11):15～20
[8]武芸.大比例土-桩基-框架模型动力相互作用试验模拟分析[D].湖南:湖南大学,2005Wu Yun.The Simulation and Analysis of Large ScaleSoil-Pile Raft Foundation-Frame Model for DynamicInteraction[D].Hunan:Hunan University,2005(inChinese)
[9]Yassin M H M.Nonlinear Analysis of PrestressedConcrete Structures under Monotonic and Cyclic Loads[D].California:University of California.Berkeley,1994
[10]GB50010-2002,混凝土结构设计规范[S]GB 50010-2002,Code for Design of Concrete Structures[S](in Chinese)
[11]费康,张建伟.ABAQUS在岩土工程中的应用[M].北京:中国水利水电出版社,2010Fei Kang,Zhang Jian-wei.Application of ABAQUS onGeotechnical Engineering[M].Beijing:China WaterPower Press,2010(in Chinese)
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