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The African Building Platform

Cover Feature

Lideta Merkato

Vilalta Studio
Architects: Vilalta Studio ( www.vilalta.studio ) Director: Xavier Vilalta Project Leader: Maria Rosaria Favoino Project Team: Joao Medeiros, Miguel Sánchez Enkerlin, Reema Al-Ajlan, Daniel Vaczi Structural: K2N Engineering Mechanical & Sanitary : Abiy Aberra
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Lideta Merkato was intended to be a shopping mall just like many others in the city of Addis Ababa. A rigorous analysis has identified the main issues of the existing malls in the city, which are commonly built using glazing structures. As a result, the buildings suffer uncomfortable thermal conditions and over-illumination in the interiors. The observation of the Old Merkato, the largest open-air market in Africa, was an inspiration to redefine the program of the building, conceiving a multistory contemporary market instead of a conventional shopping mall based on large shops.

The carved volume connects two parallel streets that define the plot of the project. This diagonal connection creates a shortcut for pedestrians and concentrates all the entrances of the building. This path extends to the inclined atrium in the middle of the building, where all floors are connected. Around this void, a different layout of small shops is placed on each floor. The skin of the building was designed considering the local climate conditions and traditions. The façade acts as protection from the sun, controlling the natural light and ventilation in the interior spaces. It was built using a lightweight concrete prefab system, and the shapes come from a traditional Ethiopian fractal pattern commonly found in the local fabrics. The passive ventilation system and controlled natural lightening created between the building´s skin and the interior atrium enable the interior space to have an open-air feeling and balanced illumination.

Image: Gonzalo Guajardo

Constantly ceasing power supply is one of the main obstacles Ethiopia is facing. This occurring problem was turned into an opportunity by placing circular-shaped photo-voltaic umbrellas on the rooftop that create nice shaded entertainment areas.

Image: Gonzalo Guajardo
Image: Gonzalo Guajardo

The roof also functions as a rainwater collection system by draining and storing the rainwater in the basement tanks, which later goes through a filtration process to be reused for the building´s toilets and taps.

Image: Gonzalo Guajardo
Image: Gonzalo Guajardo
Image: Gonzalo Guajardo

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© July, 2024 Ketema Journal

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