We are trying to conduct a detailed analysis of the "piece rate" for a structure in a high rise office block (60 storeys). The objective is to determine whether a four day construction period per floor is achievable; we know its possible using post tensioned flat slab, but the engineer has designed a precast solution that we fear can’t be done - certainly as we go higher up and the hoisting/lowering time starts to dominate the overal cycle time the "piece rate" will fall.
Does anyone have or can point me to a detailed breakdown of a typical cycle. Precast components may weigh upto 16 tonnes and the crane we’ll be using is a 380 tonne metre luffing tower crane fitted with a 40 metre jib.
Many thanks to anyone who can help
Roger Herod
Does anyone have or can point me to a detailed breakdown of a typical cycle. Precast components may weigh upto 16 tonnes and the crane we’ll be using is a 380 tonne metre luffing tower crane fitted with a 40 metre jib.
Many thanks to anyone who can help
Roger Herod