利用考虑横缝及跨横缝钢筋滑移的拱坝动力非线性模型，对设计地震荷载工况下的小湾拱坝进行了三维动力非线性有限元分析，研究了不同配筋率分布对跨缝钢筋的应力、滑移量及其控制横缝变形的影响。从控制措施的可靠性、经济性角度出发，建议选择相对合理的跨缝钢筋布置方案，为横缝配筋措施的初步设计和工程应用提供了有价值的参考。

Using the new numerical model for reinforced joint with consideration of the bond and slip between reinforcing bars and surrounding dam concrete, the 3D FEM nonlinear analysis for 292 m high Xiaowan Arch Dam under design load working conditions of earthquake was conducted, and the effects of different kinds of reinforcement on stress, slip and transverse joint openings were studied. Based on the reliability, economy and feasibility of the control measures, a relatively rational reinforced scheme is selected, which can provide valuable suggestions for engineering application. 