Effects of soil settlement and deformed geometry on a historical structure

Abstract. Protecting the historical character of a valued structure during the assessment and damage repair process is a very challenging task for many engineers. Heritage protection is complicated by a lack of design details and restrictions on sample extraction needed to obtain accurate material properties and limited studies on the restoration of certain types of historical structures. This study aims to assess the effects of soil settlement on a structure's stress concentrations and the value of laser scanning techniques on structure analysis in obtaining correct data of settlement vs. deformation. Terrestrial laser scanner (TLS) data are used to analyse the 500-year-old historical structure of Naziresha's Mosque. The obtained TLS data allow an accurate definition of the imperfect geometry patterns lying on every side of the structure. The soil profile and general crack formation together with TLS measurement proves that the structure deformed toward the south facade, where a railway and motorway are also located. Stress concentration and mode period results have a considerable difference, which highlights earthquake vulnerability and failure mechanisms and changes the strategy of possible retrofitting.

[1]  Frédéric Bosché,et al.  Automated progress tracking using 4D schedule and 3D sensing technologies , 2012 .

[2]  Eduardo Zalama Casanova,et al.  A practical approach to making accurate 3D layouts of interesting cultural heritage sites through digital models , 2010 .

[3]  Enzo Boschi,et al.  Laser scanning the Garisenda and Asinelli towers in Bologna (Italy): Detailed deformation patterns of two ancient leaning buildings , 2011 .

[4]  Giordano Teza,et al.  Geometric characterization of a cylinder-shaped structure from laser scanner data: Development of an analysis tool and its use on a leaning bell tower , 2013 .

[5]  D. G. Aguileraa,et al.  TERRESTRIAL LASER SCANNING METRIC CONTROL: ASSESSMENT OF METRIC ACCURACY FOR CULTURAL HERITAGE MODELING , 2006 .

[6]  N. Casagli,et al.  Integrating radar and laser-based remote sensing techniques for monitoring structural deformation of archaeological monuments , 2013 .

[7]  Elena Mele,et al.  Structural analysis of basilica churches: A case study , 2001 .

[8]  Ali Kocak,et al.  An example for determining the cause of damage in historical buildings: Little hagia sophia (Church of St. Sergius and Bacchus) – Istanbul, Turkey , 2010 .

[9]  Mitja Brilly,et al.  Using a laser measurement system for monitoring morphological changes on the Strug rock fall, Slovenia , 2005 .

[10]  Burcu Akinci,et al.  Automatic Reconstruction of As-Built Building Information Models from Laser-Scanned Point Clouds: A Review of Related Techniques | NIST , 2010 .

[11]  P. Arias,et al.  Historic bridge modelling using laser scanning, ground penetrating radar and finite element methods in the context of structural dynamics , 2009 .

[12]  N. Yastikli.  Documentation of cultural heritage using digital photogrammetry and laser scanning , 2007 .

[13]  Ciro Faella,et al.  Tuff Masonry Walls Strengthened With A New Kind Of C-Frp Sheet: Experimental Tests And Analysis , 2004 .

[14]  Ioannis K. Brilakis,et al.  Automated sparse 3D point cloud generation of infrastructure using its distinctive visual features , 2011, Adv. Eng. Informatics.

[15]  Stephan Schreiber,et al.  Archeoseismic study of damage in Roman and Medieval structures in the center of Cologne, Germany , 2013, Journal of Seismology.

[16]  Pedro Arias,et al.  Photogrammetric 3D modelling and mechanical analysis of masonry arches: An approach based on a discontinuous model of voussoirs , 2011 .

[17]  Pedro Arias,et al.  An innovative method for remote measurement of minimum vertical underclearance in routine bridge inspection , 2012 .

[18]  Alexander Prokop,et al.  Assessing the capability of terrestrial laser scanning for monitoring slow moving landslides , 2009 .

[19]  Alberto Guarnieri,et al.  Cultural heritage interactive 3D models on the web: An approach using open source and free software , 2010 .

[20]  Diego González-Aguilera,et al.  Terrestrial laser scanning intensity data applied to damage detection for historical buildings , 2010 .

[21]  Ioannis Brilakis,et al.  Comparison of Optical Sensor-Based Spatial Data Collection Techniques for Civil Infrastructure Modeling , 2009 .

[22]  Β. Κ. Παπαζαχοσ.  Active Tectonics in the Aegean and surrounding area , 2002 .

[23]  Michel Jaboyedoff,et al.  Detection of millimetric deformation using a terrestrial laser scanner: experiment and application to a rockfall event , 2009 .

[24]  Derek D. Lichti,et al.  Modeling Terrestrial Laser Scanner Data for Precise Structural Deformation Measurement , 2007 .

[25]  Fernanda Leite,et al.  Evaluation of accuracy of as-built 3D modeling from photos taken by handheld digital cameras , 2012 .

[26]  Manuel Sintubin,et al.  Testing the hypothesis of earthquake-related damage in structures in the Lycian ancient city of Pinara, SW Turkey , 2009 .

[27]  Enzo Boschi,et al.  Laser scanning and digital imaging for the investigation of an ancient building: Palazzo d’Accursio study case (Bologna, Italy) , 2012 .

[28]  Pedro Arias,et al.  Multidisciplinary approach to the assessment of historic structures based on the case of a masonry bridge in Galicia (Spain) , 2011 .

[29]  N. Casagli,et al.  Brief communication "Analysis of deformations in historic urban areas using terrestrial laser scanning" , 2009 .