摘要
采用试验与计算两种方法,对新旧混凝土结合的Z型粘结试件受力与破坏状态进行了研究。结果表明,模型尺寸引起的附加力偶对Z型粘结件极限荷载有较大影响;粘结面的结合强度决定了试件的破坏形式;利用Z型粘结试件测定新旧混凝土结合面抗剪强度值需要相应的修正。
Using two methods of the test and calculation, the stress and destruction states of fresh and old Z-type adhesive specimens were studied. The results show that： additional couple have a greater impact on the ultimate load of the specimen; Combined strength of the adhesive surface determines the form of damage; Shear strength of the adhesive surface need amendment according to the test results.
出处
《混凝土与水泥制品》
2015年第2期43-45,共3页
China Concrete and Cement Products
基金
国家重点基金<灾变条件下特高混凝土坝失效破坏的关键力学问题(批准号11132003)>
关键词
新旧混凝土结合
加载方式
非线性有限元
混凝土结构加固
Z型粘结件
Bonding of fresh and old concrete
loading
nonlinear FEN
strengthening of concrete structure
Z-type adhesive specimen
