Computational model for post cracking analysis of RC membrane elements based on local stress–strain characteristics

This paper aims at the development of a computational model for analysis of RC membrane elements subjected to general in-plane stresses. The response of RC elements is computed based on the local stress transfer mechanism in RC domain involving interaction of concrete-reinforcing bars, stress transfer across cracks due to aggregate interlock and dowel action with consideration to the kinking effect of reinforcements at the crack plane. Using the proposed method, the spatial average stress-strain relationship of reinforcing bars and cracked concrete, both normal and along the crack plane, and the average crack spacing and crack width are computed. Verification of the method is carried out through comparison with some experiment results.