Journal of Construction Engineering, Management & Innovation

Aynur Kazaz Ersan Erkovan Şeyda Adıgüzel Istıl

As a reflection of the development of technology day by day, technically more complex and unique solutions emerge in construction projects. As a result, these projects need to be built by public institutions. In general, public institutions with experience in providing technical pre-defined projects are insufficient to demonstrate the necessary flexibility and reaction in the face of this new situation. For this reason, public institutions prefer projects that they have already experienced and know their technical characteristics instead of those projects that might provide their needs better and more effectively. Within the scope of public procurement law No. 4734 which regulates the purchases of all kinds of goods, services and construction works belonging to the public, the effective and correct implementation of Article 21 (e) arranged for the purchase of construction works with original and complex technical features is high importance for the efficient use of public resources. In this study, it is aimed to show the advantages of the tender method to be used for the procurement of original and complex construction works to public institutions. First of all, the existing tender methods will be examined in briefly, and information about Article 21 (e) of the public procurement law will be provided and the benefits of the method will be presented in the light of a sample application.

https://doi.org/10.31462/jcemi.2019.01001009

Uğurcan Ertaymaz Guzide Atasoy Ozcan

Building Information Modeling (BIM) is one of the latest trends in the construction sector and utilized for modeling, reviewing and analyzing building projects for the last two decades with benefits including visualization, planning, and estimation. BIM provides a well-organized and streamlined approach for building projects; however, its application for highway projects has been scarce. Progressing requirements, increasing number of stakeholders, integrated design solutions, expanding model uses and rapid evolution of construction sector lead to the implementation and integration of new technologies and applications. Thus, Highway Information Modeling (HIM) becomes a necessity to facilitate design, quantity take-off, simulation, clash detection and many other uses. However, neither the definitions of the uses nor the platforms to perform such analysis on highway projects throughout their life cycle are sufficient and well defined. Hence, the initial objective of this study is to provide an overview of information necessary for defining HIM concepts and developing HIM guidelines. The secondary objective is to present a case study to illustrate the elementary interoperability capabilities of current tools. Interoperability seeks information exchange requirements and data loss in physical, functional and semantic properties of elements.

https://doi.org/10.31462/jcemi.2019.01010017

Deniz Saylam Canım Özlem Aydın

The provision, determined by the “Energy Performance of Buildings Regulations", which requires that the energy performance classification of the new and already existing buildings need to meet a minimum “C” energy class, has increased awareness in the construction sector regarding the heat insulation applications. However, in this process, we are confronted with the thermal insulation applications that are carried out in standard thickness without taking into consideration the climatic region where the buildings are located.The purpose of this study is to compare the impact of the thermal insulation applications which are carried out in standard thickness without taking the climatic region into consideration with the applications carried out by using optimum thermal insulation on the energy loads of the buildings and building energy classes obtained in the consequence of calculations in the Bep-Tr1 software. For this purpose, the energy performances of the sample residential building in the pilot cities in five climatic regions (Antalya, Trabzon, Ankara, Diyarbakır, Erzurum) are determined by using both the standard and the optimum thermal insulation thickness values and in the Bep-Tr1 software, the impact of the head insulation thickness on the building’s energy class has been investigated. The conducted study has shown that by using optimum thermal insulation thickness values, an average of 9% efficiency may be obtained in all regions in the building heating and cooling energy loads. However, the obtained efficiency was not sufficient to change the buildings’ energy class in every region.

https://doi.org/10.31462/jcemi.2019.01018029

Marc Williamson Abdulkadir Ganah Godfaurd A. John

The purpose of this paper is to present the research findings that investigated the uptake of Modern Methods of Construction (MMC) within the construction sector in UK, and to understand the barriers and challenges preventing the widespread use of MMC within the industry. MMC is not new, which was introduced on a commercial scale after the WWII, although recent reasons for the uptake are due to the population increase, government inability to meet the high housing demand, and transference of high risk venture by the government to the private sector. The findings from this research undertaken is that MMC are now of better quality as opposed to its first usage and that quality is assured because of the better processes and technologies that are now available. However, the findings also highlighted the continued negative public perception of MMC, which will need to be erased and a positive perception generated by the government for a win-win situation for all stakeholders to be realised.

https://doi.org/10.31462/jcemi.2019.01030039

Fatih Topak Onur Behzat Tokdemir Mehmet Koray Pekeriçli Ali Murat Tanyer

As the construction industry is one of the dominant contributors to the world’s total CO2 emissions and it has huge negative impacts on the environment, sustainable construction has become a key aspiration in the field. Through utilizing eco-friendly design and resource efficiency, sustainable construction is considered as the main concept to create and operate a healthy built environment. Although sustainability has been demonstrated as a timeless objective for continuous development in Turkey’s governmental policies, the number of qualified professionals in the field and the attributed significance to the notion of sustainability in the Turkish educational context is questionable. Accordingly, this paper concentrates on the Turkish architectural and civil engineering education - two disciplines that are expected to raise experts on the subject – within the scope of sustainable construction. Ten research universities, which are identified by the Higher Education Institute (YÖK), are analyzed in terms of the content of the curriculum and the conducted graduate studies in architecture and civil engineering departments. The main aim of this paper is to reveal the lack of sustainability-related graduate studies and sustainability-related content in the established curriculum of the higher education institutions in Turkey.

https://doi.org/10.31462/jcemi.2019.01040047