Seismic fragility models for typical non-engineered URM residential buildings in Malawi
| Autor: | John H G Macdonald, Panos Kloukinas, Viviana Novelli, Nicola Giordano, Innocent Kafodya, Raffaele De Risi, Ignasio Ngoma, Elia Voyagaki, Katsuichiro Goda |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Malawi
fragility curves Population 0211 other engineering and technologies Vulnerability 020101 civil engineering 02 engineering and technology in-plane damage 0201 civil engineering out-of-plane damage Fragility residential buildings East African Rift 021105 building & construction Architecture Forensic engineering masonry panel test data Safety Risk Reliability and Quality education Civil and Structural Engineering education.field_of_study orthotropic model business.industry Building and Construction Masonry earthquake vulnerability TA Work (electrical) unreinforced masonry Survey data collection Unreinforced masonry building business Geology |
| Zdroj: | Giordano, N, De Risi, R, Voyagaki, E, Kloukinas, P, Novelli, V, Kafodya, I, Ngoma, I, Goda, K & Macdonald, J 2021, ' Seismic fragility models for typical non-engineered URM residential buildings in Malawi ', Structures, vol. 32, pp. 2266-2278 . https://doi.org/10.1016/j.istruc.2021.03.118 University of Bristol-PURE Structures |
| Popis: | Malawi is an earthquake-prone country that lies within the East African Rift. A large proportion of its population lives in non-engineered single-storey constructions made of clay bricks and low-strength mortar. Walls are typically single-skin and often lack adequate wall-to-wall connections, leaving them vulnerable to seismic actions. This work reports a comprehensive study on the seismic fragility of unreinforced masonry buildings of the Malawi housing stock. The probability of exceeding different levels of in-plane/out-of-plane damage is estimated by considering the aleatory and epistemic uncertainties of the problem. Inter-building and intra27 building variability are accounted for by adopting material test results and building survey data collected in Malawi. The in-plane capacity of building walls is calculated through a finite element model that considers the orthotropic properties of masonry. The out-of-plane capacity is computed using an analytical solution, developed for walls in one way bending. In addition, record-to-record variability is considered. The new country-specific fragility models result more conservative that global estimates, which reflects the high vulnerability of Malawian masonry buildings. These fragilities can be integrated into catastrophe modelling platforms for earthquake risk assessment in Malawi and in the wider East African region. |
| Databáze: | OpenAIRE |
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