A Step-by-Step Probabilistic Seismic Soil–Structure Interaction Analysis with Ground Motion Incoherency for a Bridge Pier on Bored Pile Foundations

Abstract

In current design practice, typical seismic design of bridges tends to use simplified approaches. On the opposite side, the most advanced seismic analyses currently used in practice in all the fields of structural engineering are probably the ones used for the design of nuclear facilities, which include soil–structure interaction and motion incoherency effects. From that category, the most modern methodology is the probabilistic approach, which has been added to the new ASCE 4 standard. This type of state-of-the-art analysis is carried out in ACS SASSI software on a typical concrete bridge structure with deep foundations. A comparison of the results with the deterministic SSI approach and the typical Eurocode design from previous studies is presented at the end. Major differences in behavior are highlighted, which impact the overall safety of the structure.

Influence Analysis of Lubricant Recesses on the Working Capacity of the Bridge Span Spherical Bearing

“…Due to the rapid growth of vehicle fleets, the load on transport and logistics systems is increasing [25,27], which leads to increased requirements for the performance characteristics of bridge structure elements [27,28]. Many authors considered the serviceability of different elements of transport systems, intending to increase the maintenance-free operation of critical structural elements [24,[29][30][31][32][33][34][35]. In [6,36], the basic directions of research were considered within the framework of the rationalization of the geometrical configurations of critical elements of bridge structures (the bridge bearings), which absorb vertical and horizontal loads from the bridge span, as well as the external influences.…”