4. Structural parameters
As a study hypothesis, a three-storey building (ground floor + two, see Fig. 1) was chosen as it is a common housing type.The structure of the building is supported by load-bearing walls.An initial variable in terms of the constituent material of the wall isestablished: fired clay brick masonry (FC); concrete block masonry(CB), reinforced concrete wall (RC) and stabilised soil block masonry(SS). A second variable is the distance between the walls (span):3.00 m, 3.50 m, 4.00 m and 4.50 m, these being the most common dimensions for this building typology (Table 1). The size of the construction system is calculated in mechanical terms by determining the section of the ground floor’s load-bearing walls.