Earthquake Response Considerations of Broad Liquid Storage Tanks

摘要

This paper examines the influences of tank geometry and foundation stiffness variation on the simulated seismic structural response of a model 'broad' tank. An empirical method for describing tank bottom plate uplift geometry is proposed which recognizes radial catenary force and foundation stiffness. Axial symmetric lift, static tilt and dynamic shaking table tests were performed in the University of California, Berkeley, earthquake simulator laboratory. A structural geometric survey of a 63 ft - 10 inches tall by 289 ft - 6 inches diameter crude oil storage tank was conducted to establish a comparative base by which to evaluate the model tank eccentricities.