Precast buildings prepare wall panels, floor slabs, stairs, balconies, and other components in the factory and transport them to the construction site for hoisting and assembly.
Components can weigh several tons or even tens of tons, and some exterior wall panels are tall and large.
If any link of lifting, stacking, or supporting is not properly managed, it may cause injuries, crushing, or component tipping.
This article focuses on the special safety of precast components: component stacking, specialized lifting equipment, temporary support, positioning and fixing, grouting connection, and finished product protection.
The general lifting foundations such as tower crane operation and lifting command cables have been briefly described in previous issues and will not be repeated here.
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