Investigating factors affecting the reduction of latent energy in the construction and renovation of residential apartments - a case study of Lahijan city
armin golshahi
1
(Lecturer of Islamic Azad University Science and Research Unit)
vahid gobadiyan
2
(Islamic Azad University, center branch)
Mehrdad Matin
3
(Assistant Professor, Department of Architecture, Central Tehran Branch, Islamic Azad University, Tehran, Iran.)
Keywords: latent energy, residential apartment, construction and renovation, project management,
Abstract :
In construction projects, the use of measuring tools in choosing the construction method, checking and predicting the results before the start of executive operations has a history as old as the history of the construction industry. In the process of evaluating implementation methods in the past, documents and experiences gained from previous projects have been the most effective tools in defining the implementation method for similar projects. In this article, three factors of energy, time and cost have been selected as evaluated components. Today, with the importance of finding issues related to energy and environmental sustainability, the energy factor is evaluated as one of the main components in the evaluation of construction methods. Residential apartments, due to the importance of faster start-up and product production, are among the projects whose return on investment depends very directly on accelerating its implementation and exploitation time. In using prefab methods in residential apartments, using methods that allow for the evaluation of acceleration of implementation, estimation of possible additional costs, estimation of required facilities, resources and infrastructures and provide the necessary perspective for project managers to make decisions. of the main tools required. The primary latent energy in buildings represents the non-renewable and consumed energy in the acquisition of raw materials, construction methods, processing and production, transportation to the desired location and construction. Today, the issue of global climate changes and greenhouse gas emissions and energy efficiency in urban development is considered a key factor in the sustainability of cities. In this context, it is necessary to provide the ability to correctly identify and estimate changes and innovations from the requirements of the construction industry in the current period in every country, and our country will not be an exception to this rule. In addition to the design of the selection method of the evaluation system, the problem that is discussed in the dissertation is the examination of the characteristics of the researched building system. As mentioned, this building system, which has prefab characteristics, is one of the new methods used in industrial buildings with modern technology, and its feasibility for use in many construction environments has not yet been evaluated, and the research conducted and published in this field , most of its structural and mechanical characteristics have been investigated. Therefore, in addition to defining a comprehensive method for evaluating prefabrication decisions, the defined method also deals with the feasibility of this new technology in this environment from the point of view of construction parameters. Therefore, in this article, the aim is to investigate the factors affecting the reduction of latent energy in the construction and renovation of residential apartments by using the building data prototyping tool. In order to analyze the information, the fuzzy ANP method is used. The results show that the technical index (A3) is the closest to the positive ideal answer and the greatest distance from the negative ideal answer, and the first priority is to reduce the latent energy in the construction and renovation of residential apartments.