Design of propping schemes of 60-storey reinforced concrete building: a case study

A study of a 60-storey reinforced concrete residential building was undertaken to evaluate the propping schemes supporting the flat slabs. Relevant data necessary for evaluation were acquired from the construction site. Based on the obtained data, a simple methodology to formulate the alternative propping schemes is presented in this paper. The propping scheme designed at the construction site for a 10 d slab cycle is analysed and possible alternative schemes are proposed. The primary objectives of the alternative schemes are to ensure safety and economy, and to minimise the number of construction activities on each level. A comparison of the propping schemes suitable for different slab cycle durations was also performed. It is shown that specific slab cycle durations are comparatively more cost-effective.