This is perhaps the most tested concept in Chapter 2. Students must determine if a structure is or Statically Indeterminate .
| Error | Correction | |-------|-------------| | Using slab thickness in inches without converting to feet | Always convert to feet before multiplying by density (pcf). | | Confusing tributary width with beam spacing | For interior beams, tributary width = spacing. For edge beams, half. | | Applying live load reduction to roofs | Roof live load is typically not reduced (per ASCE 7). | | Mixing ASD and LRFD factors | Stick to one method per problem. Chapter 2 focuses on LRFD. | | Forgetting to include self-weight of beams or columns | If given cross-section and material, include it in dead load. | structural analysis 6th edition chapter 2 solutions