DYNAMIC RESPONSE OF EXISTING STEEL FRAMES WITH MASONRY INFILLS UNDER MULTIPLE EARTHQUAKES

摘要

Existing steel moment-resisting frames in several seismic regions worldwide are often characterised by high vulnerability to earthquakes due to insufficient local and/or global ductility. Therefore, it is of paramount importance to assess their response under strong motions and provide cost-effective retrofitting remedies. However, the current code-based assessment framework utilized in Europe for assessing existing structures is inadequate and requires improvement, especially to account for the contribution of masonry infills as they significantly influence the seismic response of steel buildings. To this end, the H2020-INFRAIA-SERA project HITFRAMES (i.e., Hybrid Testing of an Existing Steel Frame with Infills under Multiple Earthquakes) aims at experimental evaluation of a case study building representative ofnon-seismically designed European steel frames.