To prioritize the delay factors, the occurrence and severity of each factor were surveyed. Delay factors for each category were recognized through interviews with experts with experience in such projects. First, the scope of free-form tall buildings was identified, and particular considerations for the structural framework in their construction were determined, such as plane, elevation, floor height, and structure. This study identified the delay factors that can occur in the structural framework of free-form tall building projects and analyzed priorities for delay management. This nonsystematic management results from the lack of data that are essential for the planning construction process reflected in the particular considerations of the free-form tall building.
Delay management of structural frameworks in free-form tall buildings is currently performed by project managers based on personal experience and intuition. Generally, a delay causes a decrease in constructability and an increase in cost, so eventually the productibility of the structural framework would decrease. Among the many risks present in particular in structural frameworks, the risk of delays is an important one and has a considerable effect on the entire project performance. There are many factors in a common building project that are not relevant for free-form tall building projects, for example, the free-form planes or various shapes of buildings.
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