摘要
地震荷载对沥青混凝土心墙坝体结构力学性能的影响是尤为突出的。本文利用势流体理论模拟水位对大坝的压力作用,并且在两向地震荷载作用下提取堤坝的位移、加速度和应力。受力分析表明:在两向地震波作用下大坝的位移、加速度和应力均有明显增加,最大位移和应力均发生在沥青心墙的中部,产生了地震沉降,心墙中部位置是受力薄弱环节,需要加固处理。
The threat about mechanical properties of asphalt concrete core wall dam structure from seismic load is particularly prominent. In this paper, using the potential flow theory to simulate the pres- sure from water level on dam, and extracting the displacement, acceleration and stress of dam under earthquake. Mechanical analysis shows that the displacement, acceleration and stress of dam were signifi- cantly increased under two directions seismic waves, the maximum displacement and stress occurred in the middle part of the asphalt core wall, seismic subsidence force weak link, need reinforcement. appeared , the central position of core wall is
出处
《低温建筑技术》
2013年第10期80-82,共3页
Low Temperature Architecture Technology
关键词
沥青混凝土心墙
地震荷载
势流体
受力分析
asphalt concrete core wall
seismic load
potential-based fluid
mechanical analysis
