SCE Saudi Building Code 1 — Questions and Answers
Question 1: The Saudi Building Code (SBC) is primarily based on which international model codes?
- International Building Code (IBC) and ACI/ASCE standards with Saudi-specific modifications (Correct answer)
- Only European codes
- Only Japanese codes
- Only British Standards
Correct answer: International Building Code (IBC) and ACI/ASCE standards with Saudi-specific modifications
The SBC is largely adapted from the International Building Code (IBC) family and American standards (ACI 318, ASCE 7, AISC 360) with modifications for Saudi climate, soil conditions, and Islamic requirements.
Question 2: SBC 301 (Structural - Loading and Forces) specifies the minimum live load for residential buildings as:
- 2.0 kN/m² (Correct answer)
- 5.0 kN/m²
- 1.0 kN/m²
- 10.0 kN/m²
Correct answer: 2.0 kN/m²
SBC 301 specifies a minimum live load of 2.0 kN/m² (approximately 40 psf) for residential occupancies, consistent with international standards and typical Saudi housing construction practices.
Question 3: According to SBC, what is the minimum concrete cover for reinforcement in foundations exposed to soil?
- 75mm (Correct answer)
- 25mm
- 50mm
- 100mm
Correct answer: 75mm
SBC requires 75mm minimum cover for concrete cast against and permanently in contact with ground, providing adequate protection against soil moisture, chemicals (especially sulphates), and potential reinforcement corrosion.
Question 4: The Saudi Building Code classifies occupancy types primarily to:
- Determine fire safety requirements, structural loads, and means of egress (Correct answer)
- Set rental rates
- Determine building color
- Assign street addresses
Correct answer: Determine fire safety requirements, structural loads, and means of egress
Occupancy classification determines fire protection requirements (sprinklers, fire ratings), structural design loads, egress requirements (exit widths, travel distances), and ventilation standards.
Question 5: SBC seismic design requirements divide Saudi Arabia into seismic zones based on:
- Mapped seismic hazard with specific ground motion parameters for each region (Correct answer)
- Population density
- Building height only
- Political boundaries
Correct answer: Mapped seismic hazard with specific ground motion parameters for each region
The SBC uses seismic hazard maps showing spectral accelerations (Ss and S1) for different locations. Western Saudi Arabia (Hejaz) and southern regions near the Red Sea rift have higher seismic hazard.
Question 6: What is the SBC requirement for wind load design in Saudi Arabia?
- Design for basic wind speed specific to the geographic location, with exposure and importance factors (Correct answer)
- A uniform 100 km/h across the kingdom
- Wind loads need not be considered
- Only coastal areas require wind design
Correct answer: Design for basic wind speed specific to the geographic location, with exposure and importance factors
SBC specifies basic wind speeds that vary by location, modified by exposure category (terrain roughness), topographic factors, and building importance. Saudi Arabia's open desert terrain typically requires Exposure C or D.
SCE Saudi Building Code 1
The Saudi Building Code (SBC) is primarily based on which international model codes?