Mechanical Properties of the Grouted Connection Under the Action of Compression-bending Load

  Method  In this paper， the numerical analysis method was used. And the influence of the parameters of the grouted connection on its mechanical properties was analyzed. Based on the thickness of the grout t_g， the ratio of height to distance of shear keys h/s and the ratio of length to diameter of the grouted connection L/D_p， the change of the load-displacement curve ， the variation of contact pressure distribution and the stress state was analyzed.

  Result  The results of numerical analysis show that the changes of the three dimensional parameters t_g， h/s and L/D_p of the grouted connections will affect its mechanical properties.

  Conclusion  By analyzing the structural parameters of the grouted connections， it is of great significance to ensure its normal operation and guide the design work.