جستجوی مقالات مرتبط با کلیدواژه "industrialization" در نشریات گروه "عمران"

Evaluating new construction technologies based on quantitative analysis and before applying the technology in the construction industry can minimize the risk of using a technology. The experimental part includes the review of the information of 45 types of implemented technologies, their field impressions and pathology, and in the theoretical part, the author designs 330 quantitative evaluation questions and receives the opinions of prestigious universities of the country regarding the proposed questions and finally presents the mathematical model of the evaluation criteria. The mathematical model presented for the first time by the author is presented in this article under the title of triangle of evaluation criteria of new construction technologies. The length of the sides of this triangle is equal to the score obtained from each of the questions related to the quality, cost and speed of construction for each technology, which are the three main criteria for quantitative evaluation of a technology. The evaluation triangle shows that if the length of the quality side becomes zero in the evaluation of a technology, it is a deterrent and ban on the use of that technology. Presenting the normalized triangle model for evaluation criteria was aimed at achieving a competitive goal. The length of each of the sides of this triangle can be between zero and 0.5 (except zero and 0.5), provided that the sum of the sides does not exceed one. In this model, if the length of one of the sides approaches zero, the result will be a skinny triangle.

During the recent years, the use of cold formed steel structures has expanded all over the country in housing industry, and they are employed in mass constructions and great projects. Apart from the advantages of this construction system, like high speed execution and lightness, lack of proper performances in different construction’s stages of design, constructions and installations have caused many difficulties and problems in use of this modern structural system. Hence, there is a concern that this opportunity would be converted to a threat for the country’s construction industry. In this paper, an attempt is made to identify the barriers and problems existing in cold formed steel constructions. It is hoped that by precise planning and the efforts of the authorities, these problems will be minimized.In the present study, while conducting a case study on a large number of buildings which constructed by LSF, interview with some expert executives, engineers, professors and beneficiaries were performed. The answered questionnaires then analyzed by network analysis process, Dematel and Delphi methods. After that, the most effective factors in lowering quality of this kind of structural systems were identified and ranked. Finally, some suggestions were made in order to improve the quality of this system.

Through, progressing technology in industry; numerous advanced methods for construction will be created that one of them is Automation & Robotic; which will be defined as an industrialization subset. This technique has been changed and renewed the construction methods and technology by using automation and robotic technology. During this investigation, first of all, basics of robotic and automation will be considered as a first look and their role and advantages will be defined in construction. Afterward, japan and five corporations of this country plus their role have been investigated and for furthermore information a case study has been notified. In this paper the practical method has been defined to reach the goals of paper by using online data-bases also the annual reports of each corporation have been used to complete any lack of information, the rest of paper will discuss about this review.