Preface.- Model Reduction and Uncertainties in Structural Dynamics, by G.I. Schuëller (in Cooperation with B. Goller and H.J. Pradlwarter).- Resonant Damping of Flexible Structures under Random Excitation, by Steen Krenk and Jan Høgsberg.- Importance sampling of nonlinear structures using adapted process, by Siu-Kui Au.- Use of time-variant spectral characteristics of non-stationary random processes in the first-passage problem for earthquake engineering applications, by Michele Barbato.- Stochastic seismic analysis of large linear structural systems under fully non-stationary spectrum compatible ground motion, by Pierfrancesco Cacciola and Giuseppe Muscolino.- Soil spatial variability and structural reliability of buried networks subjected to earthquakes, by S.M. Elachachi, D. Breysse and H. Benzeguir.- An Efficient First-Order Scheme for Reliability Based Optimization of Stochastic Systems, by H.A. Jensen, G.I. Schuëller, M.A. Valdebenito and D.S. Kusanovic.- Application of a Mode-based Meta-model for the Reliability Assessment of Structures Subjected to Stochastic Ground Acceleration, by L. Pichler, H.J. Pradlwarter and G.I. Schuëller.- Nonlinear Dynamic Response Variability and Reliability of Frames with Stochastic Non-Gaussian Parameters, by George Stefanou and Michalis Fragiadakis.- The role of uncertainties in Aeolian risk assessment, by F. Petrini, M. Ciampoli and G. Augusti.- The Method of Separation: A Novel Approach for Accurate Estimation of Evolutionary Power Spectra, by Dominik Schillinger and Vissarion Papadopoulos.- A Seismologically Consistent Husid Envelope Function for the Stochastic Simulation of Earthquake Ground-Motions, by Sara Sgobba, Peter J. Stafford and Giuseppe C. Marano.- Sparse Representations in Stochastic Mechanics, by Hermann G. Matthies and Elmar Zander.- Auto-parametric Stability Loss and Post-critical Behavior of a Three Degrees of Freedom System, by Jiři Náprstek and Cyril Fischer.- Probability based size effectrepresentation for failure in civil engineering structures built of heterogeneous materials, by Adnan Ibrahimbegovic, Jean-Baptiste Colliat, Martin Hautefeuille, Delphine Brancherie and Sergiy Melnyk.- The scatter of eigenfrequencies in beams made of metal foam, by Daniel Schwarzer and Carsten Proppe.