Structural Engineer Interview Questions (Reinforced Concrete, Prestressed Concerete, Steel and Seismic)

1. Why permissible shear stress in Steel is 0.4fy while bending tensile stress is 0.67fy in ASD( Allowable Strength Design)?
2. Describe any three material failure criteria. Which failure criteria is used in Steel design?
3. List and Describe tests performed on fresh and hardened concrete.
4. List and describe non-destructive tests performed on welded connections
5. Draw simple shear connection and moment connections
6. Describe different lateral load resisting systems for tall buildings
7. Describe design criteria for serviceability in tall buildings
8. Describe principle of Tuned mass Dampers in tall buildings
9. Describe application/principle of seismic base isolation
10. Define Centre of rigidity in Building and Negative Torsional Shear
11. Define Hyperstatic stresses in prestressed concrete members
12. Define creep of Concrete and measures to reduce creep deformation
13. Describe different irregularities in building with respect to Seismic actions
14. Describe ductility and how it is achieved in reinforced concrete stuctures
15. Describe Method A and Method B to compute time period of Buildings in UBC 97
16. What is relation between elastic and inelastic deformation of building for earthquake action?
17. Describe principle of capacity based design
18. Describe reinforcement design in shear wall
19. How cracked section property of beam and column is accounted in 3D computer analysis of Buildings?
20. Explain parameters affecting long term deflection of concrete beams
21. Which are possible substitute materials for cement in concrete?
22. Describe High Performance Concrete and how it is different from High Strength Concrete?
23. Describe principle of concrete design in water retaining structures

Structural Design (Interview Question for Design RCC / Steel Building)

3C for Durable Concrete : Cover, Compaction and Curing

4S for Structural Design : Strength, Serviceability, Stability and Simplicity (Shortest Load Path)

Cover for Reinforcement - Fire Protection, Durability

Floor Systems in Reinforced Concrete cast-in situ

1. One Way slab with downstand beam
2. Two way slab with downstand beam
3. Flat Slab ; with/without Column Head; with/without Drop Panel
4. One way ribbed slab
5. Waffle slabs

Floor Systems in Precast Concrete

1. Hollow core slab and cast-in situ topping 
2. Semi Precast slab ( Filigree slab)
3. T Girder and cast-in situ topping
4. Hourdi Blocks - Ribbed slab

Floor Systems in Composite ( Steel and Concrete)

1. Metal Deck sheet and cast-in situ concrete (CF60/CF80 etc.)
2. Deep metal deck and cast-in situ concrete ( Slimflor / Slimdek)

Shoring work options (provide support to the sides of deep excavations)

1. Soldier system (single type)
2. Soldier system ( Double type)
3. Contiguous piles
4. Secant piles
5. Diaphragm wall
6. Sheet pile
7. Open excavation with (sloping and benching system)

Options in Steel Building Floors

1. Composite steel beam
2. Asymmetric steel beam (ASB) (Bottom half from UC and top half from UB)(Slimdek)
3. Slimflor ( UC section with Bottom steel plate welded)
4. Castellated Beams 
5. Cellular Beams
6. Trussed Girder
7. Haunched Plate girder