摘要
采用塑性损伤本构模型对官地碾压混凝土重力坝进行了地震时程有限元计算,分析了地震中重力坝裂缝发展特性,研究并提出了抗震限裂措施。通过分析发现,坝体上部的损伤程度明显大于底部,为此,提出在RⅢ区置换高标号混凝土,并在此基础上进行配筋,有效减小了地震裂缝发生的可能性。
The seismic response of Guandi RCC Gravity Dam was analyzed by plastic-damage model.The development and characteristic of seismic crack was discussed and measures were proposed for crack.The analysis shows that the upper damage of dam is more serious than bottom part,so the replacement of high-grade concrete in RIII area and reinforcement are proposed for reducing seismic crack.
出处
《水力发电》
北大核心
2010年第4期40-42,共3页
Water Power
基金
国家自然科学基金资助项目(90510018)
