جستجوی مقالات مرتبط با کلیدواژه "construction" در نشریات گروه "پدافند غیرعامل"

The specification of underground structures, and investigation of earth-penetrating weapons, and ultimately the major and minor impacts resulted from an invasion on these structures is one of the significant issues that each country may encounter. In other word, understanding the materials and applicable methods in the construction of buried components, to defend against the potential threats, has an important role in terms of the management construction’s principals, like time management, expenditure, and quality. Moreover, according to questionnaires and the experts’ opinions, utilization of the quantitative methods such as AHP, and the EXPERT CHIOCE software provide the opportunity to identify such indexes and alternatives. This study shows that the fiber concrete materials, reinforced concrete, nano materials, and FRP, introduce the best efficiency and function compare to other alternatives. As such, these materials are highly applicable not only in the construction of reinforced or fiber concrete, and Lattice Panel, but also in the process of retrofitting.

Advances in technology and above all Internet and network, have today affected all the everyday activities of citizens and organizations. With this regard, data centers are an important storage space in immunization of volumes of information. These centers continue to function and retain information, as the information source suppliers of critical services such as banks and military bases from the perspective of passive defense are emphasized. Accordingly, in this study, evaluation of the vulnerability of building data centers against the threats posed by dynamic loads has been addressed. 8 main indicators have been loaded and designed including the foundation, structural frame, cross members, structural systems, wall coatings, building materials, ceiling and floor, and 24 variables have been extracted. Using multi-criteria decision-making techniques including smart way and saw and distributing a questionnaire among experts, indocators have been prioritized and weighted. Design and loading indicators have been the most important ones weighing 0.221 and then the structure skeleton with 0.17 and structural system with 0.163 were in the following places. After calculating the weights, the risk assessment process and the vulnerability have been addressed.