Buckling behavior of the anchored steel tanks under horizontal and vertical ground motions using static pushover and incremental dynamic analyses
Buckling behavior of the anchored steel tanks under horizontal and vertical ground motions using static pushover and incremental dynamic analyses
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DOI：
10.1016/j.tws.2016.12.022
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发表时间：
2017-03
影响因子：
6.4
通讯作者：
M. S. Sobhan;F. Rofooei;N. K. Attari
中科院分区：
文献类型：
--
作者：
M. S. Sobhan;F. Rofooei;N. K. Attari
本文研究了水平和竖向地面加速度作用下锚固式圆柱形钢罐的静、动力屈曲问题。采用静力Pushover法(SPO)和增量动力分析法(IDA)估算了储罐的屈曲能力。由于地面激励的水平和竖向分量，采用了适当的荷载模式来进行SPO分析。将SPO分析计算的屈曲能力曲线和临界屈曲载荷与IDA计算的屈曲能力曲线和临界屈曲载荷进行了比较。提出了适合于SPO分析的竖向与水平向加速度比(av/ah)，使SPO结果与IDA结果吻合较好。
This paper investigates the static and dynamic buckling of an anchored cylindrical steel tank subjected to horizontal and vertical ground acceleration. The buckling capacity of the tank is estimated using static pushover (SPO) and incremental dynamic analyses (IDA). Appropriate load patterns due to the horizontal and vertical components of ground excitations are utilized for SPO analyses. The buckling capacity curves and critical buckling loads computed using SPO analyses are compared to those obtained from IDA. A proper vertical to horizontal acceleration ratio (av/ah) for SPO analysis is proposed that leads to good agreement between SPO and IDA results.