Abstract: Based on the numerical analysis of a 380m super-high-rise building on the fractured bedrock, the strength reduction method, the load increasing method and the joint strength reduction method for the stability analysis of the foundation on the bedrock are proposed. One failure criterion is proposed based on multiple elastoplastic solvers and the tolerance of unbalanced force on the nodes, while another criterion based on the inclination of the foundation is also discussed. Based on the numerical model and results, for the super-high-rise building, the factor of safety controlled by the inclination of the foundation was smaller than that controlled by the tolerance of unbalanced force. For the fractured rock, the factor of safety calculated by the strength reduction method with Howk-Brown criteria was smaller than that calculated by the joint strength reduction method. The case in this paper may provide valuable experience for the stability analysis of the super-high-rise building on the rock.

Key words: High-Rise Building, Rock Foundation, Stability Analysis, Failure Criteria