01. Structures, Loading and Foundations

What is the main purpose of Part A of the Irish Building Regulations?

• To regulate fire safety

• To provide minimum standards for structural safety and performance

• To set energy efficiency targets

• To manage environmental impact

Which of the following is NOT one of the key requirements of Part A (Structure)?

• Stability

• Strength

• Energy efficiency

• Resistance to disproportionate collapse

Which design code is typically used to meet the structural requirements of Part A?

• Eurocodes

• British Standards

• ISO 9001

• LEED

What are considered permanent actions in structural design?

• Wind and snow

• Self-weight of the structure

• People and furniture

• Vehicles on a bridge

Which of these best describes a load path in a structure?

• The route taken by construction workers

• The sequence by which loads travel through elements to the foundations

• The location of services like plumbing and wiring

• The path of emergency exits

What is the primary function of a foundation?

• To insulate the building from heat loss

• To resist wind loads on the roof

• To transmit loads from the superstructure to the soil

• To support windows and doors

Which situation is most likely to result in differential settlement?

• A raft foundation on uniformly compacted sand

• Strip foundations on soils of mixed stiffness

• Pad foundations on dense gravel

• Piled foundations socketed into bedrock

Which soil type in Ireland is typically stiff with low compressibility and causes only small settlements?

• Alluvial silts along river plains

• Glacial till (boulder clay)

• Organic peat in low-lying areas

• Loose fine sand in coastal areas

Why do clays experience more consolidation settlement than sands?

• They are more permeable, so water drains away quickly

• They have smaller particles, slowing water escape

• They are less compressible than sands

• They are drier and stiffer initially

How can fluctuating groundwater levels affect soil behaviour?

• By lowering frost depth in winter

• By increasing soil density permanently

• By changing effective stress within the soil

• By improving concrete curing rates