TY - CONF A1 - Miccoli, Lorenzo A1 - Perrone, C. A1 - Müller, Urs A1 - Gardei, André A1 - Ziegert, C. T1 - Comparison of mechanical behavior of different earth masonry typologies in cultural heritage T2 - WCCE-ECCE-TCCE Joint conference 2 - Seismic protection of cultural heritage (Proceedings) N2 - The paper has been developed in the framework of a larger EC‐research program called NIKER, in which BAM and other seventeen research partners from the Mediterrean area are jointly involved. It aims to develop and validate innovative materials and technologies for the systemic improvement of the seismic behavior of Cultural Heritage assets. The death tolls brought about by recent catastrophes in developing countries where many inhabitants lived in earthen dwellings (Gujarat, India 2001, Bam, Iran 2003 and Concepción, Chile 2010 Earthquakes, Tamil Nadu 2004 Tsunami) have brought about research studies aimed at improving earth construction in terms of strength, seismic resistance and speed of construction. In comparison to the recent advances in research on stone and brick masonry, knowledge on the material properties and failure mechanisms of earthen Building construction is limited and scattered. The research presented here by aims making a comparison of mechanical behaviour between different earth masonry material typologies, consisting of earth block masonry, rammed earth and cob. T2 - WCCE-ECCE-TCCE Joint conference 2 - Seismic protection of cultural heritage CY - Antalya, Turkey DA - 31.10.2011 KW - Earth masonry KW - Material test KW - Cultural heritage KW - Seismic resistance PY - 2011 SN - 978-605-01-0188-1 SP - 25 EP - 36 AN - OPUS4-24836 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Perrone, Chiara A1 - Müller, Urs A1 - Gardei, André A1 - Ziegert, C. T1 - Comparison of mechanical behavior of different earth masonry typologies in cultural heritage T2 - WCCE-ECCE-TCCE Joint Conference 2 - Seismic protection of cultural heritage T2 - WCCE-ECCE-TCCE Joint Conference 2 - Seismic protection of cultural heritage CY - Antalya, Turkey DA - 2011-10-31 PY - 2011 AN - OPUS4-25039 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferraioli, M. A1 - Mandara, A. A1 - Abruzzese, D. A1 - Miccoli, Lorenzo T1 - Dynamic identification and seismic safety of masonry bell towers T2 - 14th Conference of seismic engineering ANIDIS N2 - The paper addresses two case studies of structural monitoring and seismic assessment of medieval masonry Towers in Italy: the bell tower of Aversa and the bell tower of Capua. These monuments in the Campania region were monitored by means of full-scale environmental vibration testing. Measured responses were then used for modal identification. The procedure is based on a typical finite element model updating technique based on vibration test results. Parameters optimization is carried out by minimizing a weighted error criterion relative to the building’s modal properties. A satisfactory improvement on modal parameters is thus obtained, resulting in a close Agreement between the modal properties observed in dynamic tests and those calculated from numerical model. Seismic assessment is carried out with nonlinear static analysis of the tower under multimodal distributions of lateral loads. Nonlinear analysis indicates the potential collapse mechanisms and evidences dangerous structural weakness which may play a role in the seismic vulnerability of the towers. T2 - 14th Conference of seismic engineering ANIDIS CY - Bari, Italy DA - 18.09.2011 KW - Masonry towers KW - Structural identification KW - Model updating PY - 2011 SN - 978-88-7522-040-2 IS - Abschnitt E SP - 1 EP - 10 AN - OPUS4-24839 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Perrone, C. A1 - Müller, Urs A1 - Gardei, André A1 - Ziegert, C. ED - Drochytka, R. ED - Bohus, S. T1 - Structural performances of earthen building materials. A comparison between different typologies T2 - 2nd WTA - Internaitonal PhD Symposium - Building materials and buidling technology to preserve the built heritage N2 - Traditional construction techniques utilizing earthen materials are often seen as inferior compared to modern ways of building. Structural earthen elements are perceived as vulnerable towards environmental influences (moisture, frost) and in particular towards the load scenarios during earthquakes. In comparison to the recent advances in research on stone and brick masonry, knowledge on the structural performance of earthen building construction is limited and scattered. Consequently the confidence in the performance of these earthen buildings constructed in the traditional techniques during earthquakes is fairly low. The research presented here aims to make a comparison of mechanical behavior between different earth masonry material typologies, consisting of earth block masonry, rammed earth and cob. The paper has been developed in the framework of a larger research program called NIKER. BAM and other seventeen research partners from the Mediterrean area are jointly involved to develop and validate innovative materials and technologies for the systemic improvement of the seismic behavior of Cultural Heritage assets T2 - 2nd WTA - Internaitonal PhD Symposium - Building materials and buidling technology to preserve the built heritage CY - Brno, Czech Republic DA - 06.10.2011 KW - Earth masonry KW - Material test KW - Mechanical behavior KW - Cultural heritage PY - 2011 SN - 978-3-937066-21-9 SN - 0947-6830 N1 - Serientitel: WTA-Schriftenreihe – Series title: WTA-Schriftenreihe VL - 2 / Part 2 IS - 36 SP - 86 EP - 94 PB - WTA Publications AN - OPUS4-24928 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Perrone, Chiara A1 - Müller, Urs A1 - Gardei, André A1 - Ziegert, C. T1 - Structural performances of earthen building materials. A comparison between different typologies T2 - 2nd WTA - International PhD Symposium T2 - 2nd WTA - International PhD Symposium CY - Brno, Czech Republic DA - 2011-10-06 PY - 2011 AN - OPUS4-25038 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferraioli, M. A1 - Abruzzese, D. A1 - Miccoli, Lorenzo A1 - Di Lauro, G. T1 - Torsional seismic response of an asymmetric-plan hospital buidling T2 - 14th Conference of seismic engineering ANIDIS N2 - The inelastic torsional response of an asymmetric-plan hospital building is studied. The response of the structure in the time domain as recorded by highly sensitive sensor network, integrated by a data acquisition system. The identification was performed using techniques of modal extraction in the frequency domain (frequency Domain decomposition). A calibration process was applied in order to identify a reliable structural model to be used for the seismic vulnerability assessment of the hospital building. In particular, a nonlinear static procedure accounting for mass distribution, higher modes contribution and mode-shapes correlation was proposed for the estimation of the seismic response of irregular buildings. Finally, the influence of lateral force distribution, node control during pushover and accidental eccentricity is investigated. T2 - 14th Conference of seismic engineering ANIDIS CY - Bari, Italy DA - 18.09.2011 KW - Seismic response KW - Irregular buildings KW - Inelastic torsion PY - 2011 SN - 978-88-7522-040-2 IS - Abschnitt D SP - 1 EP - 10 AN - OPUS4-24840 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Ferraioli, M A1 - Abruzzese, D. A1 - Di Lauro, G. T1 - Torsional seismic response of an asymmetric-plan hospital building T2 - XIV Conference of Seismic Engineering ANIDIS 2011 T2 - XIV Conference of Seismic Engineering ANIDIS 2011 CY - Bari, Italy DA - 2011-09-18 PY - 2011 AN - OPUS4-27008 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -