Abstract
In the search for adopting methods that provide more comfort in the housing system, they require better structural performances in current buildings. Construction practices in the region have been discredited over time, conceiving vulnerable buildings whose inhabitants are subject to risk. The objective of this research is to comprehensively analyze the technical, construction, and design characteristics of reinforced concrete slabs regarding their implementation as a reinforcing structure for green roofs in the city of Tuxtla Gutiérrez, Chiapas, Mexico. To carry out the structural analysis, the intrinsic properties of the supporting members (slabs) were considered, as well as their current condition, and design based on durability standards. The research results revealed that the slab depth and the amount of steel were lower for average spans, as stipulated by the corresponding technical standards. Corrosion damages in steel bars are expected and they were found under an inadequate design standard, combined with deficiencies throughout the construction process. The constructions analyzed and developed with formal construction or self-build processes show similar pathologies. The city of Tuxtla Gutiérrez lacks training centers for homeowners and workers to be able to adopt self-build methods. Moreover, the authority is not rigorous regarding the compliance with building codes. These members have become a key knowledge gap. Finally, the implementation of green roofs in these structures is unlikely without prior significant changes in the entire construction.
Highlights
Tuxtla Gutiérrez is the political capital, located in the center of the southeastern state of Chiapas, in Mexico, latitude 16.75973 and longitude -93.11308, bordering Guatemala
This paper presents and discusses the results of a review of the dimensions observed in relation to the parameters defining the efficiency in reinforced concrete rooftops
When rooftops are used as green roofs, they assume two challenges: the axial load increase, which demands greater inertia to prevent deflections and cracking; and a durability-based design that reduces the risk of corrosion in the steel
Summary
Tuxtla Gutiérrez is the political capital, located in the center of the southeastern state of Chiapas, in Mexico, latitude 16.75973 and longitude -93.11308, bordering Guatemala. The city lies in a tropical area with precipitations in the summer. That is why prioritizing the use of green roofs is a key factor. Tuxtla Gutiérrez has evidenced a population growth due to multiple factors, which in turn generates a territorial demand within the municipality (GonzálezHerrera et al, 2010; González et al, 2012; Silva et al, 2015), where the vegetation cover area is increasingly limited. In the worst of cases, it reveals the phenomena caused by the excessive use of concrete (Zielinski et al, 2012; Shafique et al, 2018). The population deals with the consequences of these urban changes in the last decades
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