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A Multidisciplinary Approach Integrating Geomatics

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A Multidisciplinary Approach Integrating Geomatics (852'<1 ;,,QWHUQDWLRQDO&RQIHUHQFHRQ6WUXFWXUDO'\QDPLFV 03DSDGUDNDNLV0)UDJLDGDNLV&3DSDGLPLWULRX HGV $WKHQV*UHHFH±1RYHPEHU A MULTIDISCIPLINARY APPROACH INTEGRATING GEOMATICS, DYNAMIC FIELD TESTING AND FINITE ELEMENT MODELLING TO EVALUATE THE CONSERVATION STATE OF THE GUIMARÃES CASTLE’S TOWER KEEP L.J. Sánchez-Aparicio, M.G. Masciotta, D. Pellegrini, B. Conde, M. Girardi, C. Padovani, L.F. Ramos, B. Riveiro 'HSDUWPHQWRI&RQVWUXFWLRQDQG7HFKQRORJ\LQ$UFKLWHFWXUH '&7$ 8QLYHUVLGDG3ROLWpFQLFDGH 0DGULG $Y-XDQGH+HUUHUD0DGULG6SDLQ HPDLOOMVDQFKH]#XSPHV 'HSDUWPHQWRI(QJLQHHULQJDQG*HRORJ\8QLYHUVLW\³*G¶$QQXQ]LR´RI&KLHWL3HVFDUD 9LDOH3LQGDUR3HVFDUD,WDO\ JPDVFLRWWD#XQLFKLW ,QVWLWXWHRI,QIRUPDWLRQ6FLHQFHDQG7HFKQRORJLHV³$)DHGR´,67,&15 9LD*0RUX]]L3LVD,WDO\ ^GDQLHOHSHOOHJULQLPDULDJLUDUGLFULVWLQDSDGRYDQL`#LVWLFQULW 'HSDUWPHQWRI0DWHULDOV(QJLQHHULQJ$SSOLHG0HFKDQLFVDQG&RQVWUXFWLRQ8QLYHUVLW\RI9LJR 9LJR6SDLQ ^EFRQGHEHOHQULYHLUR`#XYLJRHV ,6,6('HSDUWPHQWRI&LYLO(QJLQHHULQJ8QLYHUVLW\RI0LQKR&DPSXVGH$]XUpP *XLPDUmHV3RUWXJDO OUDPRV#FLYLOXPLQKRSW Keywords:$UFKLWHFWXUDOKHULWDJHJHRPDWLFVDPELHQWYLEUDWLRQWHVWG\QDPLFLGHQWLILFDWLRQ PRGHOXSGDWLQJQXPHULFDOVLPXODWLRQ Abstract. The development of realistic numerical models able to replicate as closely as pos- sible the actual structural behaviour of heritage buildings is crucial for a thorough assess- ment of their structural performance against exceptional scenarios. In this regard, higher accuracy can be achieved by leveraging a multidisciplinary approach that integrates multiple contributions from different fields, such as geomatics, dynamics and computational modelling. In the present paper, this strategy is applied to the tower keep of the Guimarães castle, in Portugal, a masonry fortified structure dating back to the X century. Starting from an accu- rate laser scanner survey, a detailed numerical model has been created resorting to efficient algorithms able to represent complex situations. Furthermore, by exploiting the dynamic 2310 /-6iQFKH]$SDULFLR0*0DVFLRWWD'3HOOHJULQL%&RQGH0*LUDUGL&3DGRYDQL /)5DPRV%5LYHLUR properties extracted from the processing of vibration data collected during field dynamic test- ing, the mechanical characteristics of the constituent materials of the tower have been esti- mated by means of a model updating technique embedded in a trust-region scheme implemented in the NOSA-ITACA code. The results obtained so far allowed to establish valu- able baseline information that will be of pivotal importance to catch possible changes in the tower’s response and to perform more in-depth structural analyses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