Behavior of Non-Engineered Houses During Pisco Earthquake 15/8/2007

Abstract eng:
On August 15th 2007, an Earthquake of Intensity 8.0 MM, struck the south shore of Peru. Strong damage on adobe houses was registered on cities like Ica, Pisco, Chincha, and Cañete. Even the quake affected old non engineering houses in downtown of Lima. This report summarizes the kind of damage which appeared on non engineering houses built with two materials: adobe and brick clay masonry. Statistics of the damage and damage survey is presented for three cities: Pisco, San Luis and Huaytara. Classification of the damage by levels and most likely damage patterns are presented in order to avoid errors and produce recommendations for non engineering houses. Also a proposal of wall reinforcement is presented for two cases: adobe case, base on the use of a fiber disposable plastic bag, and masonry case, using electro welded mesh of reinforce. Full scale test on walls using the describe techniques were performed on the structural lab of our institute. Results on both cases increase the capacity of the walls elements and also avoid collapse probability under big deformations.

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