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Analysis of large concrete storage tank under seismic response
Jingyuan Li,Xiaochuan You,Hongcheng Cui,Qiang He,Jinsan Ju 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.1
This study adopted the finite element software ABAQUS to trace the dynamic response history of large reinforced concrete storagetank during different seismic excitations. The dynamic characteristics and failure modes of the tank’s structure were investigated by consideringthe rebar’s effect. Calculation results show that the large concrete storage tank remains in safe working conditions under a seismicacceleration of 55 cm/s2. The joint of the concrete wall and dome begins to crack when seismic acceleration reaches 250 cm/s2. Asthe earthquake continues, cracks spread until the top of the wall completely fails and stops working. The maximum displacement of theconcrete tank and seismic acceleration are in proportion. Peak displacement and stress of the tank always appear behind the maximumacceleration.