摘要
为研究装配式钢筋混凝土双柱墩的动力响应,本文在已有试验研究的基础上,通过Open Sees有限元软件对装配式钢筋混凝土双柱墩的恒载轴压比、预应力筋初应力、纵筋配筋率和耗能钢筋配筋率等参数的动力响应影响规律进行了研究。结果表明,提高恒载轴压比,墩顶位移峰值不断增大;增加预应力筋初应力,结构的峰值位移和残余位移减少,自复位能力明显提高;增加耗能钢筋配筋率,结构残余位移明显增加;增加纵筋配筋率,刚度会有明显提升。
In order to study the dynamic response of the assembled reinforced concrete double-column piers,this paper investigates the dynamic response of the assembled reinforced concrete double-column piers by Open Sees finite element software on the basis of the existing experimental research on the parameters of constant load axial pressure ratio,initial stress of prestressing tendons,reinforcement rate of longitudinal reinforcement and reinforcement rate of energy-consuming reinforcement. The results show that by increasing the constant load axial compression ratio,the peak displacement of the top of the pier keeps increasing;by increasing the initial stress of prestressing tendons,the peak and residual displacements of the structure decrease and the self-resetting capacity improves significantly;by increasing the reinforcement rate of energy-consuming reinforcement,the residual displacement of the structure increases significantly;by increasing the reinforcement rate of longitudinal reinforcement,the stiffness will be improved significantly.
出处
《福建建设科技》
2021年第4期64-70,共7页
Fujian Construction Science & Technology
基金
福建省自然科学基金项目(2016J0123)。
