Journal of engineering and construction management

Abstract Risk Management is one of the 10 Knowledge Management Project Knowledge areas that is implemented in five stages of identifying risk areas, risk identification, risk assessment, risk strategies, and monitoring and revision, and assists project managers in adopting safe design and implementation conditions. Slowly The multiplicity of hazardous factors, delays, the high volume of work activities and financing in major construction projects complicates the risk rating and makes it difficult to use this method.On the other hand, in EPC contracts, there are many risks to the project contractor that double the importance of this issue. In this study, the method of approaching the ideal option has been used to analyze the risks of the large Mashhad Mall project. The results indicate that financing risks, map changes and use, supply of materials, contractor interactions and tower currencies, and currency fluctuations and sanctions are ranked first to fifth of identified risks and at the end of the article response These are the risks

Abstract Today, using project management methods and tools to realize the goals of many organizations and companies
It is essential. Scheduling of activities, to minimize costs by using limited resources and in
Conditions of existence of time-sensitive constraints are used. These methods are the ability of the organization
They improve the implementation and control of projects and ways to use resources and individuals. Many methods
The existing scheduling of the activities of a project is applicable, while complicated
Many organizations face the challenge of managing multiple projects simultaneously. So use
Methodology of Scheduling of Projects with Artificial Intelligence and with the Approach of Ant Colony Algorithm for Organizations Method
Optimal and practical among other methods. In this article, the methods of solving and characteristics of issues
The timing of the projects and the work done in this area has been studied and compared. At
The results of this study are presented at the end of this study and future research fields have been introduced.

Abstract Infrastructure development plays an important role in advancing the economic and social goals of societies. Developed countries have built up their infrastructure and provided plenty of resources to carry out new projects and maintain the old projects. In contrast, developing countries need to develop their own infrastructure. According to Asian Development Bank estimates, in the next decade, Asian countries will need funding to develop infrastructure of over $ 1 trillion. Obviously, governments face serious constraints on financing major projects. For this reason, the public sector tries to compensate for some of these shortcomings by employing and activating the private sector in infrastructure projects. However, there are some barriers that have slowed down the process of assigning projects, the main purpose of which is to investigate such barriers. The present study is a type of developmental-applied study. For reach method have been used the quantitative research method (factor analysis and Mann-Whitney test) have been used. The sources of documentary and library information collection and field surveys. The results show that there are eight factors of financial support and facilities, knowledge and attitudes of the parties, public sector employer, contradictory policies and instructions, financial-economic fluctuations, regulatory processes, project management, and the factors that the government has by eliminating the problems Each sector can support the private sector participation in the process of implementing civil projects in the country.

Abstract The purpose of this study was to investigate the value engineering solutions in the management and construction of residential buildings, with emphasis on three components (quality, cost, and time) in the city of Yasouj. This research is applied and it is descriptive-survey research in terms of data collection. The statistical population of the study includes the statistical population of all 110 engineers and supervisors and contractors of the major construction projects of Mehr City of Yasuj. Regarding the unlimited statistical population, according to the Cochran formula, the sample size was 85. Two types of library and field studies were used to collect information and simple random sampling was used. Inferential statistics, correlation and regression tests were used to test the hypotheses, two samples, and analysis of variance for comparing the mean of responsiveness of independent groups. Finally, SPSS software was used for analyzing and applying these tests. This research consists of 9 hypotheses. Dimensions related to the study of value engineering solutions in the management and construction of residential buildings in Yasuj city, with emphasis on three components (quality, cost and time). The results of the research show the effect of evaluating the value engineering solutions in the management and construction of residential buildings in Yasouj City, with emphasis on three components (quality, cost, and time) in the city of Yasouj.

Abstract Human resources, the main source of strategic and wiki One of the most important indicators of the superiority of an organization in today's competitive market is. For this reason, its performance has the greatest impact on the overall efficiency of the organization and society. Motivation is one of the effective factors in the efficiency of each organization's employees. Several factors are effective in motivating employees in each organization. The purpose of this paper was to initially divide the manpower employed in the manufacturing industry into different categories and to examine the motivational factors in each group separately. According to the findings of this research, the manufacturing industry was divided into three main groups of managers, employees and employees. Then, in each group, factors influencing motivation were examined separately. The results of these studies showed that the existence of a targeted and adaptive management along with paying attention to employees' motivational factors, such as promotion and participation, participation in decisions, observance of justice in the division of labor, and responsibilities in creating a dynamic organization and with motivating employees, have an influential role. has it.

Abstract Due to the growth of the population process and, consequently, the need for available services and services in the city, the establishment of optimal buildings of great importance (fire centers and hospitals) and increasing attention to the provision of safety services and preventive measures and coping with accidents, Management is critical in reducing the crisis in cities. Therefore, due to the very high importance of these buildings, and the withdrawal of construction from the traditional way and turning to the modeling system of building information in the implementation of projects of very important buildings, it seems necessary.According to the above, in this review article, we are going to consider introducing this technology into projects of very high importance buildings (fire centers and hospitals) that are of the utmost importance for special buildings. Let's examine. The results of the studies indicate that the use of this technology in buildings of great importance with the use of fire centers and hospitals, accelerates the implementation, reduces the cost, eliminates duplication and delays in the implementation process, observing the use of Any materials and materials before making, designing and viewing the smallest and the smallest equipment of these centers with all the special features before implementation, construction of new high-quality and long life.