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ST7-1.40.35.48 Precast Slab Lifting Analysis with String Groups
Precast slabs or walls are often lifted into place by crane and straps. In this analysis we model the lifting situation in which there are three pulleys arranged in a load-sharing scheme similar to a whiffle tree. Three independent cables support the panel, each with a pulley at the top.
The model is a simple 2D beam model, although more complex 3D scenarios could also be modelled.
The goal of this Webnote is to show how string groups work to model pulleys, and to evaluate the proposed lifting...
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