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

The load on transport and logistics systems is increasing every year. This due to car park growth around the world. Thus, bridge structure durability an urgent task for bridge-building companies. study analyses contact deformation of spherical bearing elements through anti-friction polymer layer with different geometrical configurations recesses lubricant, i.e., annular grooves holes. material (a modified polytetrafluoroethylene (PTFE)) modelled within framework theory plasticity. procedure automating numerical model construction depends input parameters, including thickness layer, basic parameters distance between rows recesses, etc. influence arrangement filling sliding layers lubricants in form holes behaviour bearings has been considered. reduction lubricant volume geometry ranges from 26 48.4%, depending scheme, found. In this case, structures lubrication have several advantages, a more uniform distribution interface areas steel plates maximum level plastic intensity, displacements along normal relative free end settlement bearing.