摘要
在传统双弹簧联结单元法的基础上,提出了求解钢筋与混凝土粘结滑移问题的一种新的方法—单弹簧联结单元法。在混凝土实体单元与钢筋梁单元的切向设置单弹簧联结单元,模拟钢筋与混凝土切向的相互作用,通过建立二者间法向自由度约束方程的方式保证钢筋与混凝土之间法向变形协调,避开了人为选择法向刚度系数的困难,能够很方便的考虑钢筋对混凝土的销拴效应。
Based on the typical double-spring joint-element method, a new single-spring joint-element method is proposed for reinforced concrete bond-slip problems. The single spring joint element is set along the tangent direction of solid element for concrete and beam element for steel bar to simulate the tangential interaction. The defognation compatibility was ensured by letting the deformations of the normal direction degree-of-freedoms for concrete and steel bar be identical, in this way, the difficulty of choosing the normal stiffness coefficient is overcome.
出处
《华中科技大学学报（城市科学版）》
CAS
2008年第4期147-149,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金(90510017
10702019)
"十一五"国家科技支撑计划重大项目(2006BAB04A03)
关键词
混合坐标系
单弹簧联结单元
钢筋混凝土
粘结滑移
mixed coordinate system
single-spring joint element
reinforced concrete
bond-slip
