Mehdi Ravanshadnia

Islamic Azad University, Science and Research Branch | SRBIAU · Department of Construction Engineering and Management Faculty of Civil Engineering architecture and art

Nowadays, due to the ever-increasing price of energy consumption, optimization in energy consumption is one of the most central topics It is considered prominent in the construction industry. Optimizing energy consumption in the building in addition to energy consumption in The production time of materials also includes the energy consumption durin...

The pre-tender cost estimation serves as the foundation for determining the project cost in the early stages and is crucial for all parties involved in the tendering process. It is expected to be highly accurate. However, industry surveys have advocated that in the Iranian construction industry, the pre-tender estimated costs of construction projec...

Today, surface treatments have become extensively popular for pavement maintenance and repair around the globe. A major environmental problem of the present age is the ever-increasing generation of construction wastes (CWs). Application of recycled CW in pavements can contribute to preservation of non-renewable materials while reducing the environm...

A Smart Green building is a house that combines green and eco-friendly living features with smart home technologies to maximize energy-and water efficiency and comfort. This paper reviews and analyzes Ten highly cited articles on different approaches to achieve green smart house objectives using various technologies and frameworks, such as smart mi...

Purpose Earned value management (EVM)–based models for estimating project actual duration (AD) and cost at completion using various methods are continuously developed to improve the accuracy and actualization of predicted values. This study primarily aimed to examine natural gradient boosting (NGBoost-2020) with the classification and regression tr...

Bidding is the process in which a contractor submits a tender to the owner of a construction project to undertake its execution. This enables companies to properly employ required contractors. This paper investigates the trends of research conducted on construction bidding from 1975 to 2022 through a scientometric analysis from different viewpoints...

The construction sector is notorious for being unsustainable and disintegrated industry while, it is crucial to provide a lens towards sustainable construction from the digital innovation and integration perspective. Although a considerable amount of research has been focused on how building information modeling (BIM) helps improve sustainable cons...

The dynamic nature and increasing complexity of the construction industry have led to increased conflicts in construction projects. An accurate prediction of the outcome of a dispute resolution in courts could effectively reduce the number of disputes that would otherwise conclude by spending more money through litigation. This study aims to introd...

Green Building Construction (GBC) is considered as an advancement towards sustainable development and providing a balance among health, economics, and social problems. Many countries have adopted various policies for GBC according to their conditions and regulations, including incentives and deterring programs. This study reviews a scientometric an...

توسعه پایدار شه ري به توسعه معابر شه ري، جزو مهم ترین برنامه هاي عمران شهري محسوب مي شود. معمولاً جهت تأمين مصالح زیرسازي معابر شهري، از مصالح طبيعي استفاده مي شود. از آنجا که منابع قرضه مصالح سنگي محدود بوده و توليد آن ها خسارت جبران ناپذیري به محيط زیست وارد خواهد کرد؛ یافتن جایگزیني مناسب بر اي مصالح طبيعي الزامي به نظر مي رسد. لذا با توجه به اث...

Life cycle cost analysis (LCCA) is a common tool to select road pavement type. In the pavement type selection process, most government agencies consider the costs of initial construction, maintenance, and rehabilitation; however, user costs are rarely considered. In this paper, work zone road user costs (WZ RUC) are estimated based on the rehabilit...

Purpose This article investigates recent studies of construction law in different areas, including civil engineering; construction building technology; transportation; multidisciplinary studies and the environment, as well as their changing trends in the years between 2000 and 2019. Design/methodology/approach The transformation trend of construct...

Risk assessment is one of the most effective actions in the safety management of demolition projects. This paper provides a framework to determine building demolition safety index (BDSI), which shows the safety level of a building being demolished. Two phases are involved in this study. In the first phase, 11 potential risks in building demolition...

Purpose Demolition is a high-risk operation in construction projects that may lead to serious accidents. Risk assessment is a fundamental step in managing demolition risk and preventing casualties and financial losses. The present study aims to provide a framework to identify, analyse and evaluate the risks in building demolition operations. Desig...

Pavement is an important part of a road structure. Selection of road pavement type is one of the important challenges of decision making by highway administrators. The life-cycle cost analysis is one of the common tools to select the pavement type which considers economic criteria such as costs of construction, maintenance and rehabilitation, and u...

توسعه پایدار شه ری به مدیریت شهرها با زیرساخت های کافی برای حم ایت از نیازهای انسانی برای نسل های کنونی و آینده و حفظ پایداری اکوسیستمه ای آن اشاره دارد. لذا بر ای دستیابی به این اهداف، درک درستی از آخرین پیشرفت ها و مباحث علمی در زمینه توسعه پا یدار شه ری ام ری ضروری می باشد این پژوهش از طریق بررسی و مرور سیستماتیک نشریات مرتبط با توسعه پا یدار شه...

In a competitive construction environment, contractors are often faced with a large number of tenders that compel them to make the best decision in a limited time. In this paper, a decision support system (DSS) based on group method of data handling model (GMDH) was developed for the scoring of tenders (STs). Based on a comprehensive study of the e...

The greater parts of Iranian roads are of the asphaltic kind. The real reason behind making this type of road lies in the abundance of bitumen and the cheaper price of the substance in past years. The upward spiraling price of oil at the global level and the liberalization of subsidies were responsible for rocketing prices of asphalt pavement. As a...

In this study, the demand of the Iran’s energy carriers is analyzed and modeled for the country’s largest consumer, buildings and related industries, in the status quo and future perspective. To this objective, the building sector is divided into two sections: household section (residential buildings) and services (business-office and service build...

The International Conference On Advances in Civil, Structural, Environmenta, 2014

An Integrated group decision making model to determine buy, hire, or lease construction equipment

Risk Based Fuzzy TOPSIS Bid/no-Bid Decision Making Model

Success Stories in Real Estate

A gigantic evolution has been brought about in the railway transportation by the emergence of the expressways as the most efficient method of carrying passengers within short and medium interurban distances. Various types of expressway pavements have been offered during the recent years. A considerable amount of the repair and maintenance costs in...

Steady increase in overexploitation of stone quarries, generation of construction and demolition waste, and costs of preparing extra landfill space have become environmental and waste management challenges in metropolises. In this paper, aggregate production is studied in two scenarios: scenario 1 representing the production of natural aggregates (...

Natural aggregates (NA) are crushed and processed in crushing plants after the extraction stage in quarries. In the present study, the aggregates are divided into three scenarios, depending on the production methods. The first scenario considers the production of NA, the second scenario deals with the production of recycled aggregates (RA) with res...

Aggregates are generally divided into three scenarios, depending on the production methods. The first scenario considers the production of natural aggregates (NA), while the second scenario views the production of recycled aggregates (RA) with construction and demolition (C&D) waste. The third scenario, however, is a hybrid scenario which is the co...

With the increase in human and industrial activities, and as a result of global warming and environmental pollution, which pose many serious risks for health, safety and human life, construction activities are rapidly changing the shape of the earth, and the construction industry consumes half of the world's physical resources. Therefore, with the...

Construction project management is the application of knowledge, skills, tools and techniques related to project activities achieving the project requirements. Accurate and timely acquisition of the site data and information could improve the project management decision processes. However, obtaining the data and information in minimum possible time...

Safety in Demolition of buildings

Recycling construction Debris

Green Buildings

Interaction between Theory and Practice in Civil Engineering and Construction

Project management in Concrete pavement construction

Construction Supply Chain Management

Manageing Concrete Production Procedures

Visualization of as-built data may change the future of construction project management to a more efficient area of knowledge if appropriate and easy photography and reconstruction tools would be developed and used by practitioners. Most of the current reconstructed 3D point cloud models use unordered photograph collections to generate 4D as-built...

Selection of a candidate project among a set of bidding opportunities is a difficult task that influences the future of a construction company. Bid/no-bid decision requires the assessment of the alternative by a mixture of crisp and fuzzy data. Current paper develops two fuzzy MADM methods and compares their characteristics and results. For validat...

Demolition of Buildings Standard

Real Estate Prediction for Investment

Sustainable BIM

Mobilization of Construction Sites

Fuzzy Multi Criteria Decision Making

Construction Equipment Safety

Nowadays with regard to the existence of more than 29000 contractor company had been diagnosis competence in the country, a great competitive arena for obtaining construction projects has been formed. Therefore presenting the most precise bid price in order to gain access to both fundamental factors, winning in bidding and maximum profit conditiona...

In almost all countries, a major percentage of the manufactured cement and aggregates is used in Ready-Mixed Concrete (RMC) plants. Therefore a material inventory control system is needed to form a consumption pattern for this material to optimize warehousing cost and ordering in RMC plants. Such a material inventory control system of batching plan...

Daily consumption of 3.2 million cubic meters of water in the city of Tehran causes not only planning problems (estimation of demand and supply) and excessive costs to supply and transfer water. It also endangers the environment. In addition, it is not compatible with sustainable development. Global warming and the fact that the climate in Iran and...

Public Private Partnership (PPP) in highway projects in Iran has been a desired approach for the public sector to engage the efficiency and capital of the private sector in developing transportation infrastructure facilities. The high risk environment of construction projects in Iran has made potential investors reluctant to get involved in a partn...

The Iranian construction industry confronts a remarkable increase in concrete consumption. Practitioners believe that conventional on-site construction methods cannot be used widely - especially in large cities - because of the environmental, technical, and economic considerations. These days, central mix plants or batching plants are widely used i...

In the U.S.A., 70 percent of the manufactured cement and 43 percent of aggregates is used in Ready-Mixed Concrete (RMC) plants. So a material inventory control system is needed to form a consumption pattern for this material to optimize warehousing cost and ordering in RMC plants. Such a material inventory control system of batching plants could be...

The collection of as-built data for construction progress monitoring remains challenging. This paper develops two case studies on image-based modeling, in which point cloud models are created based on the photo collection of the construction site. The first case considers 399 unordered construction images previously taken for purposes other than pr...

Construction Contracts and legal Affairs

HSE in Construction

Blind involvement in aimless bids may result the loss of bidding bond expenditures, purchased bidding documents, the cost of human resources engaged in mark-up estimation, and detailed project investigation costs such as site visits. In this research, a risk based fuzzy TOPSIS framework is set up to evaluate and prioritize bidding opportunities. Th...

Project Portfolio Management

Construction Equipment Mangement

CRUSHERS IN CONSTRUCTION WORKS

Bidding is a strategic decision that helps contractor firms to survive. Traditionally, bidding behaviors are highly unstructured in construction companies. This paper discusses the issues involved in evaluating a tender to assist the managers of a firm in making reliable and sound decisions. The emphasis of the work is on developing a logical decis...

Projects are the life blood of construction companies. Appropriate project selection is a crucial multicriteria decision that influences the future of such organizations. This paper presents a construction project-selection model that notes the influences of the current projects of a company or what is called the portfolio effect. The model applies...

Most of the EPC projects are implemented by project oriented joint ventures. Joint ventures are means of accessing resources held by other organizations. Correct partner selection may facilitate innovations in construction technology, reduce the project's cost and time, and increase the performance of the EPC projects. This paper attempts to develo...

بنابر گزارشی که سازمان تأمین اجتماعی منتشر کرده، در سال گذشته دوازده هزار نفر در حوادث ناشی از کار آسیب دیده و یکصد نفر نیز بر .اثر وقوع حادثه در محیط کار جان باخته اند این آمار کارگرانی را در بر می گیرد که بیمه اند و تحت پوشش سازمان تأمین اجتماعی قرار دارند وگرنه آمار مرگ و میر ناشی از کار بسیار بیشتر از این رقم است. طبق برآورد سازمان بهداشت جهانی...

Arriving at the final bid price is a critical decision which is mostly done through experience and intuitions. As, many factors affect the final proposed price, no quantified decision processes may lead to irrational low or high proposed prices. Therefore, various attempts have been done to propose systematic models to track and analyze the bidding...

Arriving at the final bid price is a critical decision which is mostly done through experience and intuitions. As, many factors affect the final proposed price, no quantified decision processes may lead to irrational low or high proposed prices. Therefore, various attempts have been done to propose systematic models to track and analyze the bidding...