Structural Performance of Joints in Precast Concrete Segmental Bridges

为了给美国桥梁工程师开发更好的施工实践，该项目将研究预应力分段建造的桥梁的破坏模式和行为。调查将包括研究应力路径的影响，以及与各种荷载组合下混凝土表面粗糙度相关的最佳环氧树脂厚度。实验将包括静态和动态加载模式。该项目的目标是发展基本知识，以确定节段式桥梁接头的刚度和强度。

In order to develop better construction practices for American bridge engineers, this project will investigate the failure mode and behavior of the prestressed, segmentally constructed bridges. The investigation will include studies of the influence of the stress path and the optimum epoxy thickness associated with the amount of concrete surface roughness for various combinations of loads. The experiments will include static and dynamic loading patterns. The objective of the project is to develop basic knowledge to characterize the stiffness and strength of the segmental bridge joints.