Sharif Digital Repository

Annually there are many small-scale industry projects implemented in Iran, most of which are financed by local financial institutes. The financing agreements between project owners and financial institutes are usually formed and finalized during the initiation phase and are based on feasibility studies done at the early stages; before project design and construction begin. However, in many cases actual costs of projects exceed the costs estimated in feasibility studies which have been approved by financial institutes. Limited financial resources in the country, from one side, and the lengthy process of increasing the project financing limit, from another side, cause delays in the project... 

As population increases in the city, infrastructures have to be developed. Because of the limited financial supplies of the governments and infrastructures and high expenses of which, government is not capable of affording infrastructures to develop cities. Therefore,the government needs to encourage the private section to invest in such project for developing cities.One of the most required infrastructures for cities are parkings. parking spaces are inseparable elements of the Cities; their shortages bring many direct and indirect impacts on the quality of life of the Citizens, including waste citizen’s time in seeking for barely found parking spots, car traffic increase, and surge of... 

Recent researches on productivity in different industries has showed that there is a significant lack of growth of productivity in construction industry among other industries. It means that in other industries by appling the solutions that have been concluded from researches in those industries, the productivity in those industries had a great growth through these years. There have been some researches on the construction industry problems and productivity growth obstacles and some remedies have been suggested. Construction industry despite other industries has great dependency on labor productivity, so with growth in labor productivity we can have great influence on construction projects... 

The airport terminal is difficult to plan and design due to the different components and the intricate complexity of its parts. At the airport terminal, we face a queue system which simulation is always a good way to analyze. In addition, computer simulation using modern softwares with the capability to model different types of systems, including the airport terminal, while being less realistic than analytical models, is less costly than operational Exercise.In this study, a supportive approach for better and specific management of Iranian airport terminal buildings with discrete-event simulation is proposed, considering the need for managing the airport terminals building in the country and... 

Nowadays, maintenance management is very important in manufacturing industries and reducing the time and cost of maintenance can have a significant impact on their performance. Traditional maintenance management systems have weaknesses such as poor user interface, lack of visualization and high complexity, limited access to required documents. On the other hand, in the process of implementation of maintenance management in manufacturing industries, weaknesses in teamwork and poor information flow between different groups, especially production and maintenance groups, are evident. For this purpose, a framework has been presented in this study to improve the process of maintenance management... 

Limited water resources in Iran have made dams an important part of the country’s infrastructure. As a result of the large number of in-progress and expected dam projects in the country, consideration of sustainability factors during planning, construction and operation phases of dam projects can create significant economical, social and environmental impacts in the long term. To come up with an inclusive sustainable development, new sustainability assessment approaches seek for sustainable development at the entire project’s life-cycle; they are looking for sustainable development at all design, construction, operation, maintenance and even demolition phases. In this research we have... 

In order to respond to the concerns of safety and productivity of construction operations, in this research, the model based on discrete event simulation has been proposed. In this model, with simulation of different scenarios of construction operation in planning and designing phases, before starting construction operation, the level of safety and productivity of each scenario evaluates concurrently. The Scenario that best meets the safety and productivity concerns concurrently has been selected for operation. In order to evaluate the feasibility of the model in construction operation, the model has been implemented in a fabrical example. The operation of installing tiles on the sloping... 

Damming projects always have been important while construction, operation and even demolition due to their major effects on society, environment and economy. Although researchers have focused on one or a few phases of construction projects to develop sustainable infrastructures, the research community has to consider long term effects of developments too. There are a variety of such effects that ignoring them will cause construction of not convenient infrastructures i.e. air pollution and over-consumption of energy resources while construction, operation and demolition. Therefore, it is suggested to consider life cycle assessments to include all bad effects in all phases of a project. Dams... 

Purpose: The government owns a majority of healthcare infrastructures in Iran. Annual budget assigned to the hospitals and other parts of the healthcare system constitutes a significant portion of the country’s total budget. Despite the huge money spent, and regardless of recent improvements made to the healthcare system, still Iranian’s satisfaction level from public hospitals is low. However, improving complex and congested facility and utility systems of hospital buildings, supporting various delicate hospital services, can play an important role in both reducing hospital costs and enhancing quality level of services provided. Methodology: So far, use of various advantages building... 

For increasing longevity of a structure, it is not enough to notice only to designing aspects. In operation phase of a construction, we can increase the level of service and longevity. Asset-based Organizations, in addition to design their new assets, should maintain them. Infrastructures, such as road, bridge, dam, and water network, are important because of social and economic aspects. So they need special attention. There are efficient models for infrastructure maintenance that consider infrastructure element information, such as condition rate, weight, dimensions, deterioration rate, and cost of maintenance as inputs and give planning for maintenance in future. This planning, involves a... 

Procurement management is one of the main knowledge areas of project management which is of high importance. Traditionally, procurement of construction projects is hard and time-consuming. With the advent of building information modeling and the capabilities that it provides tp project managers, procurement management of project can be facilitated. In this research, a semi-automated framework based on BIM is presented to improve procurement planning process of construction projects in Iran. In this regard, by identifying the capabilities of BIM as well as the limitations of procurement system of construction projects, this research has provided a framework to semi-automatically generate the... 

Many public projects in Iran are being developed with the participation of the private sector. Complaints, however, have arisen in both the public and the private sectors in many public-private-partnership (PPP) projects. It is claimed that the current PPP standard-form contract is unable to properly handle project risks. This investigation was set to improve risk responses in the PPP standard-form contract in the country. A comprehensive list of 66 universal PPP project risks was prepared by review of various related international research efforts. The list was refined to 36 risk items for the country in consultation with PPP project experts and assessing two PPP cases. These risks were... 

The purpose of this study is to identify and evaluate the risks of new contracts for Iranian oil contract IPC response to these risks During the past three decades Public attention on studies related to the risk of spread with great speed So that the review process as an effective and comprehensive common And covers almost all aspects of life. In theory, any contract associated with the degree of risk. Risks cannot be completely eliminated therefore; scientific approach to the problem of risk is nothing Apart from its management. With the development of the oil and gas industry, identify and manage risk is also of special importance in regulating international oil contracts and has been... 

Today, public-private-partnership (PPP) contracts are attracting attention of both public and private sectors. In these contracts public sector benefits from private sector’s money to overcome its budget limitations. It speeds up pace of the country’s development and brings value to the society. Plus, private sector gets new job during the construction phase and enjoys the benefit of its investment during the operation phase.
In Iran, PPP contracts have been used during last years. Many infrastructure projects in transportation, power, and lately in water sectors have been constructed using PPP delivery method. Despite many successful experiences in the past, there are still problems in... 

Nowadays, the construction industry has undergone extensive changes, with the advent of new technologies, it has departed from the traditional project implementation methods. One of these technologies is Virtual Reality, which is becoming more widespread in various stages of the life cycle of a project from design to delivery. Providing an opportunity for people to see the details of the final construction before completing the project could be regarded as one of the capabilities of this technology. Also, evaluating the project’s features at the time of construction and having a close understanding of product’s reality are the other beneficial aspects of VR. Meanwhile, the emergence and... 

Old urban texture has always been one of the concerns of Government due to its high extent and vulnerability. In recent decades, various programs have been implemented to improve and develop old urban texture. According to experts in this field, the government has faced many challenges in old urban texture development projects in recent years, some of which have caused the project to deviate from its first purpose or not be fully implemented. One of the most important challenges in this field, according to the multiple stakeholders, has been the proper stakeholders management. In this research, a framework based on building information modeling is presented to develop old urban texture. In... 

Today, the correct management of construction projects in IRAN's water industry has become a severe concern for its managers. Construction projects of the water industry constitute a considerable part of the country's construction industry. Several significant Issues such as operation management, water industry projects, correct management of resources, crisis management in the water industry, increased productivity and useful life of structures, increasing productivity, and preventing water loss are among the determinative challenges in construction projects in Iran. One of the new methods for the correct management of the life cycle of projects in this area is the use of Building... 

Despite eye-catching progressive trends in highway safety, there have been a great number of unpleasant incidents in highways. A number of 8841 people died in road accidents in the first 6 month this year with 1.7% increase compared to the accidents occurred in 1396 [59]. Operation of a modeling process shall provide the engineers with more opportunities to identify the affecting factors in roads incidents. Safety infrastructure management is mainly aimed at ensuring the efficient measurement, systematic recognition and consequently deterioration of road accidents when they have been designed, constructed and used [37]. Building information modeling (BIM) tends to be a developed managerial... 

Despite progressive trends in road safety, thousands of people die in road accidents, and millions are injured each year all around the world. The consequences of traffic accidents are not limited to injuries or fatality. Yet, they have a wide range of indirect economic and social effects, such as the financial burden of medical expenses or young labor loss. Therefore, the need to improve road safety and reduce road accident rates is essential for all communities.The first step to improving road safety is to build a reliable accident information management system. Accident information management systems are effective platforms in the design of highways and vehicles. They also present... 

The growing number of disasters in recent years has become a significant threat to hospital buildings' resilience and preparedness. Besides, the stochastic nature of these disasters and the complexity of the hospital building systems exacerbate the difficulty of making appropriate decisions during and after disasters. To address the issue, this research proposes a novel model that utilizes the capabilities of Bayesian Networks (BNs) and Building Information Modeling (BIM). This model helps decision-makers in hospitals and medical centers measure various effects of disasters on utility systems and analyze the consequences of their decisions. The capabilities of the proposed model are tested...