论文部分内容阅读
为精确描述混凝土和钢材在地震作用下强度和刚度的退化规律,在混凝土Faria-Oliver模型和钢材K&K模型的基础上,分别引入损伤模型进行修正。运用考虑损伤累积效应的修正Faria-Oliver模型和修正K&K模型,对天津大学新校区综合体育馆中一典型锥形柱进行竖向承载力分析,结果表明考虑材料损伤累积效应,锥形柱的竖向极限承载力和强震作用后的竖向剩余承载力显著降低。
In order to accurately describe the degradation rules of strength and stiffness of concrete and steel under the action of earthquake, the damage model was introduced and modified respectively based on the concrete Faria-Oliver model and the steel K & K model. Using the modified Faria-Oliver model and the modified K & K model considering the cumulative effect of damage, the vertical bearing capacity of a typical conical column in the new gymnasium of Tianjin University is analyzed. The results show that considering the material damage cumulative effect, the vertical The ultimate bearing capacity and the vertical bearing capacity after strong earthquakes are significantly reduced.