Abstract：In order to explore the mechanical behavior of dome of a large LNG storage tank under accidental impact loading, the dome local shell of a 16×104m3LNG storage tank was taken as the original model to be tested, the impact resistant design code was used as a reference, impact tests of 15 working conditions were conducted by changing thickness of shell, mass of a flying projectile and its impact velocity. The test results showed that under accidental impact loading, pit damage appears on the dome local shell facing bullet surface, but there is no crack along radial and circumferential directions, the steel plate and concrete at the back have different damage types; projectile body energy, intrusion attitude, and reinforcing bar resistant force have great influences on concrete pit, penetration depth and steel plate failure modes; when the projectile kinetic energy is the same as that of the impact resistant design code and the projectile falls in the gap between reinforcing bars, the steel plat at the dome local shell back is not destroyed, but the concrete at the back has a crack or a circular cap flaking zone, pay attention to this situation during design and safety assessment. Based on the test data, an empirical formula was fitted for estimating the dome failure of a large LNG storage tank under accidental impact load.
邹德磊1,2，孙建刚?2，郑建华3,崔利富2，王振2，刘伟兵2. 偶然冲击荷载作用下大型LNG储罐穹顶力学行为试验研究[J]. 振动与冲击, 2017, 36(23): 201-208.
ZOU Delei，SUN Jiangang，ZHENG Jianhua，CUI Lifu， WANG Zhen，LIU Weibing2. Tests for mechanical behavior of dome of a large LNG storage tank under accidental impact loading. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(23): 201-208.
