Joist-Slab Forming Systems

A one-way joist slab is a monolithic combination of regularly spaced joists arranged in one direction and a thin slab cast in place to form an integral unit with the beams and columns (Figure 2.8a). One-way joist slabs have frequently been formed with standard steel pans. Table 2.1 shows the dimensions of the standard-form pans and the special fillers for one-way joist construction. Any spac­ing between pans which exceeds 30 in. (762 mm) is referred to as a wide-modular or skip-joist system.