Analytical Study on Load-Carrying Capacity of Partially Concrete-Filled Steel-Pipe Pier Models

摘要

To establish a numerical analysis method for appropriately evaluating load-carrying capacity of the partially concrete-filled steel-pipe pier models, four partially concrete-filled steel-pipe piers taking height of filled concrete as variable, were analyzed by means of three-dimensional elasto-plastic finite element method. Coulomb friction model was used in the analysis to take into account sliding effects between steel-pipe and filled concrete. An applicability of this analysis method for this type steel-pipe piers was discussed comparing with the experimental results in detail. From this study, it can be concluded that applying the proposed analysis method, load-carrying capacity of partially concrete-filled steel-pipe piers can be estimated rationally in spite of the height of filled concrete.