CAJ | 학술논문

在高烈度区，高面板堆石坝的动力特性直接影响结构的安全。面板分缝可以有效适应坝体变形，但合适的模拟方式对计算结果有较大影响。基于ANSYS的二次开发，实现混凝土面板堆石坝的Ducan－chang静力本构模型和适用于动力计算的等效线性黏弹性模型。分别采用软弱材料和接触单元模拟面板的分缝，进而探究分缝对某面板堆石坝的动力特性的影响。研究表明，面板分缝后结构的拉应力略有降低，而采用软弱材料模拟分缝与采用接触单元模拟分缝对面板的应力计算结果影响较小，结构的最大拉应力大多发生在面板或趾板靠近基岩部位。
재고열도구，고면판퇴석패적동력특성직접영향결구적안전。면판분봉가이유효괄응패체변형，단합괄적모의방식대계산결과유교대영향。기우ANSYS적이차개발，실현혼응토면판퇴석패적Ducan－chang정력본구모형화괄용우동력계산적등효선성점탄성모형。분별채용연약재료화접촉단원모의면판적분봉，진이탐구분봉대모면판퇴석패적동력특성적영향。연구표명，면판분봉후결구적랍응력략유강저，이채용연약재료모의분봉여채용접촉단원모의분봉대면판적응력계산결과영향교소，결구적최대랍응력대다발생재면판혹지판고근기암부위。
In high‐intensity areas ,the dynamic characteristics of high concrete face rockfill dams affect the safety of the structure di‐rectly .Panel joints can effectively adapt to dam deformation ,but different analog ways have a greater impact on results ,conduct the secondary development based on ANSYS ,establish Ducan‐chang static constitutive model and equivalent linear visco‐elastic model fit for the dynamic calculation of concrete rockfill face dams .Soft materials and contact elements are adopted to simulate the joint effect of panels ,then the dynamic characteristics of joints for concrete rockfill face dams are explored .Research shows that :after parting , the structure tear stress is slightly reduced ,whether soft material or the contact element is adopted to simulate the joint ,the panel stress changes little ,the maximum tensile stress of structure mostly occurs in the panel or the toe slab near the bedrock site .