Preface. Simple physical models for foundation dynamics (J.P. Wolf). The scaled boundary finite-element method - alias consistent infinitesimal finite-element cell method - for unbounded media (C. Song, J.P. Wolf). Effects of soil-structure interaction on nonlinear response of arch dams (C. Zhang, Y. Xu, F. Jin). Application of transmitting boundaries to non-linear dynamic analysis of an arch dam-foundation-reservoir system (H. Chen, X. Du, S. Hou). A decoupling numerical simulation of wave motion (Z. Liao). Scattering of plane SH waves by cylindrical surface topography of circular-arc cross-section (X. Yuan, Z. Liao, S. Xu). Applications of infinite elements to dynamic soil-structure interaction problems (C. Zhao). Non-reflecting boundary conditions for wave propagation problems and their stability analysis (X. Shao). Boundary element method for SH waves in elastic half plane with stochastic and heterogeneous properties (Z. Yoa, J. Xiang). Effects of soil-structure interaction on structural vibration control (M. Lou, J. Wu). Dynamic soil-structure interaction for high-rise buildings (S. Wu, G. Gan). Nonlinear dynamic analysis of saturated soil-structure interaction by FEM (E. Song, Z. Yao, Z. Qui). Dynamic soil-structure interaction on layered strata under seismic wave incidence (Z. Xu, H. Liao). Nonlinear SSI-simplified approach, model test verification and parameter studies for seimic and air-blast environment (J. Xiong, D. Wang, T. Fu, J. Liu). A direct method for analysis of dynamic soil-structure interaction based on interface idea (J. Liu, Y. Lu). An analytical approach for evaluation of global dynamic impedance of semi-circular dam canyon cut in an elastic half-space (G. Lin, J. Chen, K. Sun). A coupling model of FE-BE-IE-IBE for nonlinear layered soil-structure interactions (C. Zhang, G. Wang, X. Chen). A hybrid procedure of distinct-boundary element for discrete rock dynamic analysis (F. Jin, G. Wang, C. Zhang). Author index.