Nonlinear Finite Element Analysis for Energy-Saving Block Walls with Invisible Multi-Ribbed Frame

Energy-saving block wall with invisible multi-ribbed frame is a new structural system,characterized by low weight,high strength,saving energy and good seismic performance.The force transferring characteristics in the wall are different from those in normal concrete members,which are the key points of design method for the structure.Nonlinear FE program Ansys was adopted to simulate six 1/2-scale models of the energy-saving block walls with invisible multi-ribbed frame under low-cycle lateral loading.The failure mode,the bearing capacity and the distribution of reinforcement stress were studied.The simulated results were compared with the test and the feasibility of FE method was validated.