Protection of cultural heritage buildings against earthquakes from a sensitized structural engineering perspective

Preciado-Quiroz, Adolfo; Rodríguez, Osmar; Ramírez-Gaytán, Alejandro; Gutiérrez, Nayar; Vargas-DelRío, David; Ochoa-González, Gil H.

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Date

2017

Author

Preciado-Quiroz, Adolfo

Rodríguez, Osmar

Ramírez-Gaytán, Alejandro

Gutiérrez, Nayar

Vargas-DelRío, David

Ochoa-González, Gil H.

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URI

https://hdl.handle.net/20.500.12032/73150

Description

The most common construction techniques for heritage buildings were mainly based on basic geometric rules about stability and earthquake damage observations. This situation led to the construction of massive structures with structural elements of great thickness, but still with poor seismic performance because damage was continuously presented. These restrictions have made historical buildings extremely vulnerable against earthquakes, presenting partial and total collapses. Thus, becomes evident the need of suitable technical solutions to protect them. This chapter describes the behavior and failure mechanisms of unreinforced masonry buildings and different rehabilitation and strengthening techniques. Both techniques are aimed at keeping good deformation compatibility between materials without affecting the architectonic value of the monument. Advantages and disadvantages of different rehabilitation and strengthening proposals are discussed from a sensitized structural engineering perspective taking into account that this type of buildings are very different from modern structures. These techniques aim at protecting cultural heritage against earthquakes by inducing a modified failure mechanisms that involves more energy dissipation than the original structural system.

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