Official Website of NIAZIT Industrial Group

Patented Open Web Steel Joist (OWSJ) Roof System – A New Structural Generation

January 28, 2026

Negative Moment in SJI

**Negative Moment Reinforcement (ODKA Bars) in Open Web Steel Joists: Why NIAZIT Joists Do Not Require Top Reinforcement** SEO Title Negative Moment Reinforcement in Open Web […]
January 24, 2026

Concrete slab thickness OWSJ

Concrete Slab Thickness in Composite Deck Systems vs. NIAZIT OWSJ Roof System Introduction Concrete slab thickness is one of the most influential parameters in the structural […]
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