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Ingeniería sísmica

Print version ISSN 0185-092X

Abstract

HERNANDEZ MARIN, Martín et al. Monitoring damages and numerical analysis in a historic building affected by an active surface fault in the Valley of Aguascalientes. Ing. sísm [online]. 2016, n.94, pp.75-91. ISSN 0185-092X.

The Museum of the Insurgence, inherited historic building located in the community of Pabellon de Hidalgo, Aguascalientes state, central Mexico, is been severely damaged by an active surface fault. In this work, a simple methodology was implemented to quantify and monitor fault-induced displacements that are used to perform a stress lineal analysis through numerical modeling to assess structural damages, identify critical points, and perform a future approximated prediction of the structural critical situation in a short term. The methodology includes a revision of the last structural restoration of the building, which was designed for the coexistence between the building and the fault that affects it. By placing crack gauges in strategic structural elements of the building along the fault trace, the quantifying evaluation of the fault-induced displacements was achieved. Displacements were measured in a lapse of 202 days reaching values equal to 6 mm and 10 mm vertically and horizontally, respectively. Based on the results of the modeling analyses, which consider the actual dynamic conditions of the fault effect, the building is being critically damaged on the base of the masonry columns closer to the fault, where in a mid-term period, fault-induced stresses may exceed the masonry strength.

Keywords : Geologic fault; Museum of the Insurgence; valley of Aguascalientes; numerical analysis.

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