TY - CONF A1 - Paganoni, S. A1 - D'Ayala, D. A1 - Miccoli, Lorenzo A1 - Hracov, S. A1 - Urushadze, S. A1 - Wünsche, M. A1 - Adami, C.-E. A1 - Vintzileou, E. A1 - Moreira, S. A1 - Oliveira, D.V. A1 - James, P. A1 - Cóias e Silva, V. ED - Jasienko, J. T1 - Connections and dissipative systems with early warning N2 - The global response of historic buildings is determined by the behaviour of the single structural elements as well as by their mutual connections. Consequently, in the last decades a number of technical solutions for the improvement of structural connections have been developed in response to the increasing demand in the field of the seismic protection of heritage assets. At the same time, the experimental assessment of structural strengthening techniques is a well established practice both in the scientific community and among commercial producers. It is therefore surprising how testing of connections is rarely performed and very few codes of practice deal with it. Additionally, the few existing experimental procedures for testing connections are neither standardised nor easily accessible to end users. Within the work frame of the EU-funded NIKER project, Work Package 6 aims to address such technical gap through the development of procedures specific to the strengthening of structural connections of historic buildings. T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 15.10.2012 KW - Seismic strengthening KW - Structural connections KW - Heritage buildings PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 3 SP - 2888 EP - 2896 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vintzileou, E. A1 - Valluzzi, M.R. A1 - Mazzon, N. A1 - Posipsil, S. A1 - Miccoli, Lorenzo ED - Jasienko, J. T1 - Systemic improvement of overall seismic response N2 - Subassemblies and building models at reduced scale are tested on shaking table facilities. This experimental program is part of the project NIKER and constitutes the Work Package 7 (WP7): “Systemic improvement of overall seismic response”. The purpose of this WP is to define global intervention strategies through shaking table tests on both substructures and entire structures before and after intervention in order to check the performance of single elements and to characterize the seismic behaviour of whole buildings. The obtained results will also allow data for FE and analytical modelling to be obtained for both single elements and whole structures. The design and the testing protocol of both subassemblies and building models were based on the results obtained from the experimental campaigns carried out on individual vertical members (quasi-static tests), on horizontal elements (e.g. floors and roofs) and on connections between bearing elements, all these performed within the same project. The experiments summarized in this paper proved the efficiency of the investigated intervention techniques and provided fundamental data to calibrate analytical models, developed within the same project, in order to describe the seismic behaviour of historic structures both in unstrengthened and strengthened conditions. This paper provides a brief overview of the whole dynamic experimental campaign and introduces some key experimental results. T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 15.10.2012 KW - Historic structures KW - Shaking table tests KW - Subassemblies KW - Scaled models PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 3 SP - 2897 EP - 2905 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27274 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -