内泄下LNG储罐外壁的地震响应分析
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摘要
针对内罐泄漏条件下LNG储罐混凝土外壁,利用ADINA软件分别建立储罐空罐及满罐LNG储罐有限元模型。在El Eentro地震波作用下,考虑固液耦合作用,对储罐进行地震响应分析。结果表明:通过比较空罐与满罐情况下LNG储罐外壁的地震作用下的位移、加速度曲线,储罐的外壁受罐内LNG储液的影响较大,其位移和加速度在液固耦合的作用下,均较空罐变大。
For concrete outer wall under internal leakage,finite element models of empty and full LNG storage tank are established with ADINA software.By inputting El Centro seismic wave,considering the liquid-solid coupling effect,seismic response of LNG tank is processed.The results show that with comparing displacement and acceleration changing curves of empty and full LNG tanks under earthquake,outer wall of tank is effected by liquid of LNG greater.With liquid-solid coupling,its displacement and acceleration all increased compared with empty tank.
For concrete outer wall under internal leakage,finite element models of empty and full LNG storage tank are established with ADINA software.By inputting El Centro seismic wave,considering the liquid-solid coupling effect,seismic response of LNG tank is processed.The results show that with comparing displacement and acceleration changing curves of empty and full LNG tanks under earthquake,outer wall of tank is effected by liquid of LNG greater.With liquid-solid coupling,its displacement and acceleration all increased compared with empty tank.
引文
[1]马德萍.隔震LNG储罐的地震反应分析[D].哈尔滨:哈尔滨工业大学,2007.
[2]王翠翠.考虑液固耦合储液罐非线性地震响应分析[D].哈尔滨:中国地震局工程力学研究所,2008.
[3]王金昌,杨森.大型LNG全容罐抗震隔震设计[J].油气田地面工程,2009,(10):53-55.
[2]王翠翠.考虑液固耦合储液罐非线性地震响应分析[D].哈尔滨:中国地震局工程力学研究所,2008.
[3]王金昌,杨森.大型LNG全容罐抗震隔震设计[J].油气田地面工程,2009,(10):53-55.
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