School of Engineering (SEng.)
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Browsing School of Engineering (SEng.) by Author "Acen, Diana"
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ItemAssessing the functional resilience of building infrastructure to floods in Nakivubu Catchment.(Makerere University, 2024-06-06) Mukisa, Yvonne ; Acen, DianaUrban areas in Kampala are increasingly vulnerable to floods due to rapid urbanisation, inadequate drainage infrastructure and changing climatic patterns. These floods pose significant risks to the structural integrity and functionality of buildings, leading to extended recovery times and increased susceptibility to damage. This exposes people to risks like health risks due to moisture exposure, water infiltration into the inside of buildings and collapse of buildings. Addressing this issue is critical for ensuring the safety and well-being of residents and the sustainability of urban development. Several methodologies like GIS spatial analysis and the Analytical Hierarchy Process have been developed to determine the functional resilience of buildings to floods. However, for our study, a multicriteria method has been developed and used to determine the functional resilience of buildings to floods. The study combined the use of HEC-HMS for the runoff simulations, HEC-RAS for the flood mapping and the multicriteria method to determine the flood resilience index of Nakivubo Catchment. The results from the study indicated the areas near the Nakivubo swamp have higher water depths of 10 metres. The resilience of buildings to floods stands at 2.89 is still very low according to Batica & Gourbesville, 2014. This indicates that the flood effects are still profound, there is a need to build capacity and also implement different flood mitigation interventions in order to safely manage and improve the functional resilience of buildings to floods. The findings show that improving the resilience of the structures requires a multi-faceted approach which encompasses various strategies including structural measures, non-structural measures and policy interventions. These actions when implemented collectively will enhance the functional resilience of buildings in the flood-prone regions. The results will assist in developing a blueprint towards achieving urban resilience in Kampala and offer a comprehensive framework for advancing research, policy development and professional practice in pursuit of a resilient built environment. The results of this study can only be used in Nakivubo Catchment for further studies. This is because of spatial variability in building and flood characteristics in different regions. However, the principles used to make the findings of the study could be applied to other regions.