Design Development & Analysis Of Structural Bearings For Torsional Forces

Abstract

All over the world; development of roadways, infrastructure is increasing. All the latest large span bridges require Structural bearing for their better performance, durability, life & low cost. These structural bearing enables freedom of movement between a superstructure and substructure, while transmitting vertical loads and rotation caused by the effect of operating loads, temperature variations, wind or earthquakes. These standard structural bearings are designed & manufactured as per well known international standards like BS: 5400, EN-1337, AASTHO, IRC 83, Indian Railway, etc. In the latest designed bridges, in addition to standard forces, torsional forces also occurs in the Bridges when high wind causes the suspended roadway to rotate and twist like a rolling wave & these are also generated at the time of turning of fast moving trains. This report is development of New Structural bearings suitable for torsional forces in addition to all standard features of bearings. This new development of structural bearing suitable for torsional forces will help to reduce the cost of structure & cost of bearings.
DOI: 10.17762/ijritcc2321-8169.1507116