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Performance of Reinforced Concrete Columns Impacted by Water-Borne Shipping Containers
Numerous buildings have been severely damaged during hurricanes and tsunamis due to impact of water-borne massive objects such as barges, boats, heavy vehicles, and shipping containers. Failure of columns which are the primary load-carrying members of a building due to such impact loads, could significantly affect the performance of a building. This paper reports the results of the numerical investigation of reinforced concrete (RC) columns subjected to impact loads from water-borne shipping containers which have been dislodged during tsunamis. Existing methods to estimate peak impact force on structures due to tsunami water-borne massive objects are reviewed and their limitations are discussed. High-fidelity numerical simulation of the shipping container-column impact is carried out using the nonlinear finite element code LS-DYNA. The container model includes all significant structural elements and associated details. Typical RC columns having square and circular cross-sections are considered to investigate the damage to the container and column, and it is shown that the shape of the column cross-section significantly affects the peak impact force. The effects of container specific parameters such as velocity, height above ground level, and container orientation on peak impact force are studied. A series of RC columns is considered to investigate effects of transverse reinforcement ratio, longitudinal reinforcement ratio, column section size, and axial load ratio on peak impact force; and formulae to estimate the peak impact force on RC columns are obtained. Damage to the column is presented in terms of the damage index characterized by degradation of axial load carrying capacity and results will be useful for improving impact resistance of RC columns in buildings located in tsunami inundation zones.
Performance of Reinforced Concrete Columns Impacted by Water-Borne Shipping Containers
Numerous buildings have been severely damaged during hurricanes and tsunamis due to impact of water-borne massive objects such as barges, boats, heavy vehicles, and shipping containers. Failure of columns which are the primary load-carrying members of a building due to such impact loads, could significantly affect the performance of a building. This paper reports the results of the numerical investigation of reinforced concrete (RC) columns subjected to impact loads from water-borne shipping containers which have been dislodged during tsunamis. Existing methods to estimate peak impact force on structures due to tsunami water-borne massive objects are reviewed and their limitations are discussed. High-fidelity numerical simulation of the shipping container-column impact is carried out using the nonlinear finite element code LS-DYNA. The container model includes all significant structural elements and associated details. Typical RC columns having square and circular cross-sections are considered to investigate the damage to the container and column, and it is shown that the shape of the column cross-section significantly affects the peak impact force. The effects of container specific parameters such as velocity, height above ground level, and container orientation on peak impact force are studied. A series of RC columns is considered to investigate effects of transverse reinforcement ratio, longitudinal reinforcement ratio, column section size, and axial load ratio on peak impact force; and formulae to estimate the peak impact force on RC columns are obtained. Damage to the column is presented in terms of the damage index characterized by degradation of axial load carrying capacity and results will be useful for improving impact resistance of RC columns in buildings located in tsunami inundation zones.
Performance of Reinforced Concrete Columns Impacted by Water-Borne Shipping Containers
Madurapperuma, M.A.K.M. (author) / Wijeyewickrema, Anil C. (author)
Advances in Structural Engineering ; 15 ; 1307-1327
2012-08-01
21 pages
Article (Journal)
Electronic Resource
English
Performance of Reinforced Concrete Columns Impacted by Water-Borne Shipping Containers
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