Nonlinear Stochastic Evolution Analysis of Shortleg Shear Walls with Dual Binding Beams

Abstract:

Based on an energy release ratebased plasticdamage model and probability density evolution method (PDEM),an investigation of the shortleg shear walls with dual binding beams is conducted on the Pcures,concrete and reinforcement strains,concrete damages and crosssectional internal forces in the frame of stochastic damage mechanics for concrete.Nonlinear stochastic evolution of structures is described through sample tracks,ensemble numerical characteristics and probability density.Multipeaks and multiridges phenomenon appear in probability density function evolution surfaces of the different response level,which roots in couple of randomicity and nonlinearity.It can also be concluded that randomicity and certainty may transform into each other in the process of structural response evolution.