Abstract：In view of the support effect of prestressed anchor and frame beam，the support of frame beam and prestressed anchor is widely applied to the reinforcement of slope. According to the characteristics of anchor and frame beam，the reinforcing mechanism of the support is discussed. Through analysis of the load system on frame beams，the calculation method of internal force and main design parameters are introduced. According to the condition of prestressed anchor，two phases such as tension phase and working phase are divided. With respect to the working phase，the soil pressure on frame beam is determined by using the slope thrust to back-calculate the tension of prestressed anchor and calculate the internal force of beams.
