Structural Analysis of Historical Constructions - Modena, Lourenço & Roca (eds) © 2005 Taylor & Francis Group, London, ISBN 04 1536 379 9 Prevision of settlement-induced cracking in historical building masonry façades J.G. Rots Delft University ofTechnology, Delft, The Netherlands S. Invernizzi Politecnico di Torino, Torino, /taly; visiting researchf ellow Delft University ofTechnology ABSTRACT: In the present paper lhe case study of an historical masonry building is presented in order to assess the settlement-induced cracking due to recent underground tunneling. A comprehensive numerical analysis is carried out in the framework of classical nonlinear smeared crack models. The building structure is analyzed by modeling the most important 20 sections, respectively parallel and orthogonal to the tunnel trace. The results obtained from the numerical simulation allow assessing the criticai angular distortion after which some mitigation countermeasures are necessary to avoid the faça de cracking. This value can be compared with the expected one, as well as with results provided by real-time monitoring during the tunnel excava- tion. A future development of the study could be directed to assess the effectiveness of possible structural strengthening. INTROOUCTlON The "Industrieele" (Industrial) Club was founded in April 1913 as a centre owing to serve the growing needs of Outch industry and trade in the Netherlands. It was a national society with headquarters in the capi- tal, Amsterdam. It was quickly apparent that important business was best conducted in the proper and refined surroundings and so during the three years that fol- lowed, the impressive building "Industria" on Oam Square (No 27) gradually took shape by the architect Foeke Kuipers designo Initially, there were problems with the foundations. The excavations stumbled on the remains of a disused sluice, which had originally been built in the 13th cen- tury, after the dam across the Amstel river had been constructed. Ali the complicated construction in the centuries previous to the foundation ofIndustria meant the builders had a difficult task ahead of them. The floor of sluice was no longer supported by poles, these having sunk under their own weighl. Oespite ali these setbacks, as well as a builder's strike lasting 6 months, and the start of the First World War, the building was finished on the 8th of January 1916. Nowadays, the building is going to be interested by the new underground line tunneling that will be traced nearby. Therefore, a reliable assessment of the settlement-induced damage due to the Tunnel Boring Figure I. View of lhe Industria building from the Dam square in Amsterdam. 687