混凝土中锚杆荷载传递机理的理论分析和现场实验

Theoretical analysis and in－situ experiment on load－transfer mechanism of bolt in cement

从理论和实验两方面分析了混凝土中锚杆受张拉荷载时的传力机理，指出了两者结果产生明显差别的原因以及理论的适用范围。并通过对实验结果的讨论，阐明了锚杆表面形态对混凝土与锚杆交界面抗剪强度的决定作用。

 Load－transfer mechanism of bolt in cement is analyzed according to elastic theory and in－situ experiment． The reasons for difference between the results of theory and those of experiment are pointed out and then the prerequisites for application of elastic theory． By discussion about experiment results the influence of geometrical shape of bolt on shear strength of interface between bolt and cement is demonstrated．