摘要
从宏观意义上,已有研究表明,跨横缝布置钢筋可有效地控制横缝开度,增强高拱坝在强震作用下的整体性。但钢筋与混凝土之间的局部变形特性将直接影响跨缝钢筋的控制效果。以小湾拱坝为工程背景,在已有宏观研究成果的基础上,对跨缝钢筋与周围混凝土的粘结滑移特性以及三维非线性变形特性进行了研究,研究结果论证了横缝配筋抗震措施的可行性,为这一抗震措施的初步设计和工程应用提供了有价值的参考。
In the view of macro model, the existing research results indicated that the reinforcements across contraction joints could effectively control the joint opening and enhance the integrity of high arch dam under strong earthquake. However, the local deformation behavior between reinforcement and concrete directly affects the controlling effect. Under the engineering background of Xiaowan arch dam, based on the existing research results, the authors studies the 3D nonlinear deformation behavior of reinforcements and the surrounding dam concrete. Results further verified the feasibility of the anti-earthquake measure-placing reinforcements across contraction joints, and provided some useful suggestions for its application.
出处
《水力发电》
北大核心
2004年第1期27-29,共3页
Water Power
基金
国家自然科学基金资助项目(50209004)的部分研究成果
关键词
高拱坝
抗震
跨缝钢筋
粘结滑移
开裂损伤
小湾拱坝
high concrete arch dam
earthquake-resistance
reinforcement across transverse joint
bond slip
crack and damage
Xiaowan arch dam
