| Title |
Optimization of Estimating Duration of the Structural Frame for the High-rise Apartment Housing during the Winter season : Focusing on One Cycle Time Scheduling Mechanism of the Typical Floor |
| Authors |
Bang, Jong-Dae ; Han, Choong-Hee ; Kim, Sun-Kuk |
| Keywords |
non-working days ; non-working periods ; actual working days ; winter season ; time scheduling mechanism |
| Abstract |
Public construction companies have strictly followed a rule that they should not work in the wet area such as structural frame for a certain period during the winter season. It is usually known that the non-working period during the winter causes increase of the project duration, and the project cost escalation. Also, it makes negative effects on national economy because it reduces worker's income. Therefore, the site work for the structural frame should be performed even during the winter season. But the site work for the structural frame during that period cannot proceeds in the same way as during other periods, and requires a different method for estimating project duration. Through an analysis of time scheduling mechanism, actual working days are obtained for 1 cycle of typical floors in the structural frame during these periods, and nonworking days of 5 years average are calculated based on calendar day using data of 5years' weather forecasts for that season. This study proposes an optimized way of estimating project duration for 1 cycle of typical floors in the structural frame during these periods. This estimating method uses the combined actual working days and non-working days of 5 years' average, and the estimated results are confirmed by being compared with field data. This study is expected to be used in estimating the construction duration of the structural frame during the winter season. |