重力式钢筋混凝土桥墩的弹塑性地震行为

Elasto Plastic Seismic Behavior of Reinforced Concrete Gravity Bridge Pier

采用简化的单墩模型，用Ｔａｋｅｄａ退化三线性模型研究了地震时重力式钢筋混凝土桥墩的弹塑性行为．定义了弯矩折减系数和墩顶位移放大系数，探讨了它们随墩高和地震烈度的变化规律．

In this paper, the elasto plastic seismic behavior of gravity reinforced concrete bridge piers are investigated with Takeda degrading trilinear model by using a simplified single pier model. The moment reduction factors and displacement amplification factors are defined, and the relationships between these factors and the varieties of pier height and earthquake intensities are discussed. It is important and necessary to study seismic ductility design for reinforced concrete bridge piers.