<abstract xmlns="http://www.w3.org/1999/xhtml">

Companies in the construction sector need effective information management. In particular, the transmission of information within a company is key to improving its management and competitiveness. Currently, many companies in the construction sector are making a great effort to implement the building information modelling (BIM) methodology. Such implementation requires collaborative work through the Cloud between the different agents in the construction process of any project. In fact, information management in BIM projects is related to the creation, storage, transfer and efficient application of information within a three-dimensional (3D) virtual model of the project. The size of the project also determines the optimal management approach. The main problems resulting from poor information management may be a lack of coordination between actors, loss of information or misinterpretation of information. This work has two stated objectives. The first objective is to carry out a literature review of the applications of BIM technology and the importance of managing knowledge according to International Organisation for Standardisation (ISO)- 19650. The second objective is to propose a disruptive method based on the Kanban tool to properly manage BIM information in the design and construction phases. This paper has practical implications for the improvement of BIM application for project managers.
</abstract>

Disruptive method for managing BIM design and construction using Kanban

<abstract xmlns="http://www.w3.org/1999/xhtml">

The growing pressure to optimise construction investment costs from the life-cycle perspective inevitably leads to efforts to seek new solutions that will facilitate informed decision-making in the early stages of the construction project. Awareness of the importance of considering future operation and demolition costs emphasises the shortcomings related to the possibility of making accurate predictions/estimations of such costs, which will become apparent in the future. To address this research gap, an innovative approach of life-cycle cost modelling on the level of individual structures of the building is presented. The model provides users with information on the costs of available technical solutions resulting from the requirements of the investor at a specific stage of the construction project. In this way, it helps investors optimise their building projects and to find the most economical solutions. Specifically, this model is assembled for the purpose of selecting a suitable partition wall and, therefore, it takes into consideration specific characteristics relating to this particular type of structure. The results indicate diversity in partition wall structural design variants at the early stage of the project. Since the ability to influence future costs decreases as the project progresses, the model allows capturing LCC perspective even if only a construction study is available without more detailed technical and economic information. The presented model aims to contribute to the higher performance of construction projects in the planning phase from the perspective of LCC and investors’/owners’ point of view.
</abstract>

Life-cycle cost estimation of a building structure: An example of partition walls

<abstract xmlns="http://www.w3.org/1999/xhtml">

Applying the constructability concept in the construction industry has proven many benefits in different projects; however, this concept still lacks usage in Iraq. Therefore, it is important to encourage usage of the constructability concept in the construction industry in Iraq. The main purpose of this study is to investigate the factors that affect constructability in Iraq and then classify them according to their importance. A total of 37 factors were collected from an intensive literature review, and they were classified under the sub and main categories. A survey was undertaken in two sessions with open questionnaire and close questionnaire. The results were analysed and the mean, standard deviation and Cronbach’s Alpha were obtained. Also, the developed weight was calculated for each alternative factor. The goal of this paper is to define the main factors that have an effect on Iraqi’s constructability project in order to avoid issues in future Iraqi projects. The outcome showed that 34 factors had a major effect on increasing the constructability percentage in construction projects in Iraq. The top-ranking factors were structural frame types, high-strength concrete usage, adjacent infrastructures and adjacent site.
</abstract>

The factors that affect constructability in Iraq

<abstract xmlns="http://www.w3.org/1999/xhtml">

The materials supply chain in the construction industry involves many independent actors, creating complex, dependent relationships, including competitive and cooperative relationships. To develop together, chain members need to build a long-term cooperative relationship for mutual benefits, promote the development of chain members and improve the operational efficiency of the construction supply chain. Therefore, studies to measure and improve this relationship are urgently needed. Within the scope of the present article, the authors carry out work with the aim of assessing the current status of the relationship between construction contractors and partners in their material supply chain and ranking the factors affecting the relationship. From the synthesis of research documents, the report outlines eight factors affecting the construction supply chain cooperation, namely: trust, information sharing, choosing the right partner, profit and risk sharing, senior management support, problem solving, transaction frequency and culture of cooperation. A survey was carried out with subjects who are senior leaders of construction enterprises, project directors/deputy directors, site commanders/deputy commanders, employees of different departments. contractors and field engineers. Data from 132 valid questionnaires were used for the study. Based on the survey results, the authors assessed the current relationship with the members in the supply chain and the impact of these factors on the cooperation between construction enterprises and their supply chain partners. The research results of the present article can help construction enterprises identify important influencing factors and take appropriate measures so as to strengthen the cooperative relationships with the stakeholders. This would help improve the operational efficiency of the supply chain.
</abstract>

Factors affecting the cooperative relationships in material supply chain of construction enterprises

<abstract xmlns="http://www.w3.org/1999/xhtml">

One of the most important aspects directly affecting a building’s performance is the design quality of the natural day-lighting. The present research evaluates the effectiveness of daylight in school buildings in the city of Baghdad. It aims to ascertain how the characteristics of building windows affect the quality of day-lighting, the objective of this exercise being to improve educational processes in schools by making improvements in relation to the aspect of provision of satisfactory day-lighting levels. A building simulation approach was adopted, and using Autodesk Revit 2018 (Insight plug-in), a daylight analysis was conducted under the aegis of the Building Information Modelling (BIM) technology. For the case study, we selected the modern design of a 24-classrooms school building, which is part of a plan for the construction of 1,000 Iraqi schools. Leadership in Environmental and Energy Design (LEED v4) simulation was conducted on the school building design to provide the results, which were measured and analysed according to LEED v4 standards. The results demonstrated that opening dimensions and direction have an essential impact on natural day-lighting. The research concluded that using BIM simulation tools enhances the design quality of the natural lighting in such a way that compliance with LEED v4 requirements is achieved. The present study will assist in identification and assessment of the problems concerned with natural lighting levels in Iraqi school buildings as well as resolving these at an early design stage.
</abstract>

Using building information modelling to optimise design quality of natural lighting in Iraqi school buildings

AHEAD OF PRINT

Volume 16 (2024): Issue 1 (January 2024)

Volume 15 (2023): Issue 1 (January 2023)

Volume 14 (2022): Issue 1 (January 2022)

Volume 13 (2021): Issue 2 (July 2021)

Volume 13 (2021): Issue 1 (January 2021)

Volume 12 (2020): Issue 1 (January 2020)

Volume 11 (2019): Issue 1 (January 2019)

Volume 10 (2018): Issue 1 (February 2018)

Volume 9 (2017): Issue 1 (January 2017)

Volume 8 (2016): Issue 1 (December 2016)

Organization, Technology and Management in Construction: an International Journal

 OTMC is an international journal that promotes and facilitates the development of organization, technology and management in construction, within the regions of Central and Southeastern Europe. This does not exclude contributions worldwide. The journal will provide those from both the public and private sectors with: the latest research results, models and methodologies, case studies of best practice, research trends and future directions.  The Organization Technology and Management in construction: An International Journal publishes articles in the following fields:   Project Management in Construction  Construction Management  Building Information Modelling  Asset management  Facility Management and Maintenance  Organizational Issues  Contracting  Project Planning and Design  Construction Materials and Methods  Cost and Schedule  Labour and Personnel Issues  Information Technologies  Strategy, Decision making, Risk, and Finance  Public, Society, and Legal issues  Contemporary Issues    Each of these fields contain several optional subclasses for more detailed classification of paper topic.  Our journal publishes the following article types:    Research paper (dealing with the research of methods, methodologies, models etc.)  Technical paper (dealing with the application of methods, methodologies, models etc.)  Viewpoint (Should not be longer than 2000 words. Viewpoints may offer comments on other papers published by this Journal - also erratum - as well as offer original contributions)  Case study (Should specify: background and content objectives, i.e. what we were trying to do, eminent events that make this study important, the results and how they were obtained and the implications for others involved in studies of organization, technology and management in construction)  Literature review (Literature review should provide a comprehensive overview of the topic reviewed, followed by a critical discussion of the review, giving recommendations for further research)   Publishing details  OTMC journal is published in annual volumes.Each year consists of one volume. The papers are published successively each month.All articles in the journal are the views of the authors and are not necessarily those of the journal.  The Owner and Co-Publisher of the journal is Univeristy of Zagreb  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 