Full text
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| Author(s): |
Leonardo Egas
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) |
| Defense date: | 2008-06-25 |
| Examining board members: |
Akemi Ino;
Reginaldo Luiz Nunes Ronconi;
Andrea Naguissa Yuba
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| Advisor: | Akemi Ino |
| Abstract | |
This paper is enclosed in the discussion of a more sustainable building systems, seeking to study how the civil construction is acting out in the present time and offering alternatives to reduce its impacts. In the last decades this theme has been partially approached, with new technology propositions, however, without coming along with studies that assess the existing complex relations in the reality to solve these problems. The social, economical, political and cultural experiences usually not approached in most studies, mostly are the ones responsible for the current levels of consumerism and production of leftovers and emission, thus necessarily becoming the target of studies that connect them to the technical and environmental matters, regarding to the gains and losses of sustainability, to propose new building systems and procedures ables to bring up a more sustainable scenario in some contexts and dimension. The aim of this paper is to bring about and analyze the points of higher and lower sustainability in the structural roof system life cycle in nail-laminated wood beams made of 3rd class quality Pinus, in the environmental, social, economical, political and cultural dimensions, assessing its relations of gains and losses along the process. The work was divided in two big steps, having the first one step a bibliography revision, collecting data about the current sustainable methods and identifying their limits and potentialities, where it revealed that no studies has covered the different dimensions in a satisfactory way, focusing only on the environment. Following, to become closer to an acceptable multidimensional analysis, the life cycle assessment (LCA) was chosen as the most indicated method, connected to the Ethos indicators, the other raised variables from the literature and the new tool created to organize and viewing the data, resulting in the proposed method, the Multidimensional Life Cycle Assessment (MLCA). In the second step, it was used the method developed in the singular case study, the life cycle of the structural system of naillaminated beams, developed in the Pirituba II rural settlement, where the impact generated across the chain was raised. The achieved results showed that the use of wood in a cooperative process, with prefabricated parts in the cooperative carpentry workshop can bring positive impacts, since it is a renewable resource and also capable to capture \'CO IND.2\' from the atmosphere, to generate energy from its leftovers, creating works and revenues hence bringing quality of life for workers and the community. The work progresses to the analysis of relations in the sustainability gains and losses, suggesting the points of major or minor fragility in the process and dimensions, thus allowing changes of posture facing these matters and helping out in the choices of more sustainable building systems. (AU) | |