Özet
Fatal construction accidents are major problem in Turkish construction industry. Although new comprehensive legislation has been inured recently; level of consciousness in the industry is unsatisfactory and safety is perceived as an extra cost. Small or middle scaled residential projects have a big share in the industry and majority of the fatal accidents usually occur on such work sites. Focus of this study is small and middle-scaled residential construction sites. Drawings, technical specifications, bill of quantities of 25 concrete residential buildings with total areas that vary between 230 and 118,200m2 in Istanbul were examined. Site visits and information gathering were performed from site engineers. This study aims to give an approach for safety cost estimation for the early stages of construction bidding phase using risk assessment activities and construction project scheduling by focusing on construction activities. Additionally, a cost analysis was performed and the results were compared and analyzed with a former project that focused on 30 concrete residential projects in Istanbul. Primavera P6 was utilized for scheduling, and risk assessment was conducted using the techniques applicable for construction projects (i.e., L matrix and Fine-Kinney). Finally, activity-based techniques were used for cost estimation. The results of this study reveal that the percentage of safety cost to the total construction cost is 1.92%. Also, to comply with the current legislation and minimize risks; 0.85 USD per man-hour should be spent according to 2013 rates and safety cost per unit area was found as approximately 5.68 USD.
| Orijinal dil | İngilizce |
|---|---|
| Sayfa (başlangıç-bitiş) | 1-12 |
| Sayfa sayısı | 12 |
| Dergi | Safety Science |
| Hacim | 80 |
| DOI'lar | |
| Yayın durumu | Yayınlandı - 1 Ara 2015 |
Bibliyografik not
Publisher Copyright:© 2015 Elsevier Ltd.
Finansman
This work is supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the project with no. 112M033. This paper attempts to estimate safety costs and its distribution throughout a project before construction starts. For this purpose, firstly drawings, technical specifications, bill of quantities of 25 concrete residential buildings in the region of Istanbul province were collected, construction sites were visited and information gathered from the site engineers about safety practices on site with the financial support of The Scientific and Technological Research Council of Turkey (TUBITAK). In total, the 25 concrete residential building projects vary between 230 and 118,200 m 2 in area. Since the costs of construction projects vary due to regional characteristics (different labor wages, different tax policies of the municipalities, variable transportation, material cost and additional cost due to site facilities), the study only focused on the projects in Istanbul province. This paper provides the results of a project conducted by the authors, which was supported by The Scientific and Technological Research Council of Turkey (Project Number 112M033). The aim was to combine construction project scheduling, risk assessment activities and construction cost estimation to value safety costs and its distribution throughout a project. In this way, this research provides a better understanding of safety costs during a building construction project. Therefore, this approach helps in efforts to reduce loss of workers’ life and mitigation of the safety costs arising from severe injuries, fatalities, administrative procedures, legal obligations and litigation costs and expenses.
| Finansörler | Finansör numarası |
|---|---|
| TUBITAK | |
| TÜBİTAK | |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu | 112M033 |