SEISMIC DAMAGE TO STONE STRUCTURES IN MACHU PICCHU
The Inca citadel of Machu Picchu is the most famous historical site in Peru; site which was declared as world cultural heritage by UNESCO in 1983 and also as one of the New Seven Wonders of the World in 2007. All of its constructions were made of stone masonry. The citadel was constructed by Inca Pachacutec and was abandoned after collapsing the Inca Empire by the year 1540 AD. During almost four centuries, the citadel endured and survived under a thick rain forest, until it was discovered by Hiram Bingham in 1911. However, it is important to analyze the probable causes of structural damages of the constructions to preserve them. To evaluate the current structural conditions of the buildings, the characteristics of failures are discussed in this paper, through field survey, micro vibration measurements and dynamic analysis. The field survey on damages consisted of a detailed observation and evaluation of a group of selected buildings. Also, micro vibration measurements were performed on the ground and on some buildings to estimate their dynamic characteristics. It was observed that for a specific soil condition, the failure in some buildings could be the result of the action of past earthquakes.
Stone masonry Machu Picchu Micro vibration Equivalent elastic modulus Vibration mode UNESCO cultural heritage Structural damage
C. H. Cuadra K. Tokeshi J. G. Rojas
Associate Professor, Dept. of Architecture and Environment Systems, Faculty of Systems Science and T Assistant Professor, Dept. of Architecture and Environment Systems, Faculty of Systems Science and T Professor, Faculty of Civil Engineering, National University of Cusco, Peru
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）