TY JOUR TI Response of high-speed railway viaducts to longitudinal seismic loading KW viaduct KW continuous welded rail track KW seismic actions JO Proceedings of Petersburg Transport University AU Golubev, A.A. AU Smirnov, V.N. PY 2026 IS 23 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"