| Title |
The Calculation Method for Prolongation cost of Sub-Constract ni Domestic Public Construction Project |
| Authors |
Jeong, Kichang ; Lee, Jaeseob |
| DOI |
http://dx.doi.org/10.6106/KJCEM.2018.19.4.061 |
| Keywords |
Prolongation Cost ; Time Extension ; Delay Cost ; Contract Price Adjustment ; Indirect Cost |
| Abstract |
Research on additional indirect cost due to construction period extension in general contracts has continuously been active whereas the same for the subcontract operations has not been. In this research, we review previous research on evaluation methods for additional indirect costs which are widely being used on construction sites as well as previously proposed methods altogether, applying them to analyze model-cases for comparison. We acknowledge that this pattern for construction cost fluctuation over the construction period demonstrates an S-curve. This S-curve shaped indirect cost occurrence is then used to generate model-cases that are used throughout the research which models we applied previous evaluation methods on. Finally in pursuit of finding out some problems of evaluation methods, we came to derive a conclusion that the "Average Actual Cost Evaluation Method on Extended Duration," which, in turn, were proved to be valid for application on general contracts, was also valid for general application on subcontractor operations. |