液化天然气球罐耗能柱脚的研究  

Research on Energy Dissipating Column Base of LNG Spherical Tank

作　　者：高云鹏[1] 赵鸣[1] 刘磊[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《特种结构》2013年第4期18-22,共5页Special Structures

摘　　要：本文首先通过对液化天然气球罐放松竖向约束的简化模型的地震时程分析,了解球罐在放松竖向约束的情况下地震作用的变化。接着,对耗能减震所选用的软钢阻尼器进行了考察其滞回性能的数值模拟。最后,提出耗能柱脚的构造形式,并指明耗能柱脚可以在震后快速更换耗能构件并重新投入使用的特点。Firstly,this paper mainly investigates the change in the seismic response of the LNG spherical tanks with uplifting effect by conducting a time-history analysis on a simplified tank model.Next,hysteretic performance of the mild steel damper chosen for energy dissipation is investigated by numerical simulation.At last.the structural form of seismic energy dissipating column base is presented.The column base can be replaced rapidly after an earthquake and the structure can be put into use again.

关 键 词：可更换构件 耗能柱脚 液化天燃气球罐 

分 类 号：TE973[石油与天然气工程—石油机械设备]