| This paper presents a research on the non-linear behavior of the existing precast segmental concrete bridge column with prestressing by high strength steel bars longitudinally. Precast segmental concrete bridge columns are effective to shorten the construction period at the site because of no need of formwork, placement and curing of concrete. Thus, they are expected to be applied for construction of overpass crossings in urban areas to minimize the effect on existing traffic. In Japan, precast segmental PC columns with high strength steel bars were employed before the 1995 Hyogoken-Nanbu Earthquake. These columns were not designed considering the non-linear behavior and failure mechanism for a large earthquake. The limit states for these columns were investigated based on the experimental studies. |
