Integrated Analysis of Structural Systems and Finishing Materials with a Multi-Criteria Decision-Making Approach Based on National and International Regulations

This research aims to present an integrated approach for the optimal selection of interior finishing materials and structural systems in buildings, based on a combination of technical, climatic, and psychological criteria, as well as national and international standards. Given the climatic diversity of Iran and the wide difference in material behavior regarding temperature, humidity, radiation, and freezing, the selection of finishing materials requires a multi-criteria model based on environmental condition analysis. In this regard, reputable standards such as ASTM, ISO, EN, and the National Building Regulations (Topics ۵, ۱۸, ۱۹, and ۹) have been employed as the basis for evaluating durability, thermal-moisture resistance, and material compliance with structural performance. Furthermore, findings indicate that the selection of structural systems, similar to material selection, has moved beyond a one-dimensional decision based on cost and execution speed to become a multi-criteria process where criteria such as seismic safety, embodied energy, thermal behavior, ease of maintenance, and coordination with finishing have gained greater importance. A detailed review of lateral and gravity load-bearing systems, ceilings, and foundations showed that each system offers different functional characteristics depending on climatic conditions. Additionally, climatic analysis of the country's four main zones indicates that material durability and structural performance are directly determined by their compatibility with the region's thermal and moisture characteristics. Ultimately, the research results state that combining national and international standards with multi-criteria decision-making models provides a comprehensive framework for selecting materials and structural systems. This can increase building safety and durability while reducing lifecycle costs and improving spatial perception quality and resident comfort.

کلیدواژه ها:

MCDM ، Sustainability ، Embodied Energy ، National Building Standards ، EN ، ASTM ، ISO ، Material durability ، Thermal and moisture behavior