شایان حجت پناه

Risk management is one of the most important aspects of the project. Risk management includes various areas such as planning, identifying, evaluating and controlling risk. In construction projects, due to the fact that the process of project implementation is known before the start, first the project risks are identified so that in case of encountering them during implementation, principled and efficient measures are taken. In research and development projects; Risk management is used to improve project implementation process, cost management, increase project profitability and is effective as a scientific and effective tool to reduce risk and loss. One of the most common methods of risk identification is to use the Delphi method and consult experts and the project team. This study identifies the risks of the design phase of the research and development project of rapid cable structure design, for this purpose 313 risks identified in eight groups of general executive risks: structural, mechanical, geotechnical and foundation, then three proposed designs were developed according to the evaluation of the severity of the effect and the probability of risks, and eight designs were obtained. According to the results obtained from the risks, these eight designs with eight criteria of fast construction, portability, These two methods are among the oldest methods of multi-criteria selection. In the scoring method, the score is at the disposal of experts, but in the method of sorting designs, they are placed in order. Finally, the selected designs were determined according to the effective parameter of span length.

Due to the uncertainties in the construction projects and their differences with the service and manufacturing industries in terms of scope of the work, environmental factors, executive and scheduling challenges, contractors and clients always face with significant damages, regarding contractual disputes. In such circumstances, it is essential to empower contractors in making contractual claims and managing the claims. The aim of this study is to identify contractors’ challenges in the claiming process and the way for dealing with these challenges. In this regard, these challenges along with the most important shortcomings of claims are identified, analyzed and prioritized. Research method including literature review, analysis of 16 claims in 4 projects, interviewing with ten experts and finally applying a questionnaire method, by obtaining 60 experts opinions about 38 challenges and the key shortcomings of the claim’s statements have been done. According to the research findings, 40% of the challenges are related to contractors and their internal organizational processes, 29% of the challenges are related to governmental organization and their rules, 21% of the challenges are related to clients and finally 10% of the challenges are related to the consultants and their monitoring systems.