Wall Formwork for Commercial Construction
Topic 6 – Wall Formwork for Commercial Construction
Tilt up construction – utilizes the use of precast concrete panels which are poured on a flat surface and then lifted into place with a crane. This work can be done away from the building site and reduces labour and material costs. Special consideration must be given to the reinforcement as additional stress is placed on the walls when being lifted and tilted into place.
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Gang Forming – is a process in which multiple form panels are assembled and then moved into place by crane. This construction technique is best used when the forms are to be reused many times such as a multi-story building.
For additional information review Principles and Practices of Commercial Construction, “Tilt-Up Lock-Bearing Wall Panels” and “Giant Panels and Gang Forms”.
Review Instruction Sheet (IS) on Brightspace:
FNDT 300 (p. 172 – 192):
- IS 1.2 Tilt-Up Construction
- IS 2.2 Describe How Gang Forms are used for Wall Construction
Review Questions – 8.02.6
- What is strategically placed inside the concrete slab (in tilt-up construction) to accommodate lifting the panels?
- Before the last panel is erected, the erection sequence of setting tilt-up slabs for a building must permit the crane to _________.
- The proper angle between the floor and the braces should be between _____ and _____.
- Explain the following terms:
- Kneebracing
- Cross-lacing
- What is a “gang” or “ganged” form
- What advantages does slowing down the rate of pour when using gang forms permit?
- In what ways are gang forms cost effective?
- List four important components of gang forms
- List as many factors as you can that should be considered when designing gang forms.