| There is a need for research dealing with labor productivity on commercial construction sites. Because of this reason, carpenters, steel workers and concrete spreaders involved in the structural framing of a building were monitored. A total of 3474 man hours were observed over 16 month on four commercial construction projects. This significant data set has resulted in the development of industry standard work time distribution graphs for carpenter crews and steel crews.; In the case of carpenter crews, recommendations were developed to reduce supportive and wait time activities which were affecting tool time activities. Two hypotheses were proposed regarding the redistribution of the time saved. Validating data was collected from one of the project sites to confirm the redistribution formula.; Based on the data analysis of the concreting crews, pour rates were recommended to ensure that the concrete spreaders were optimally utilized. The number of truck stalls for concreting operations was also determined by this research. |
