RIBA Architecture Parts 1, 2 and 3 Construction Technology and Materials Syllabus

Construction Technology and Materials syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Construction Technology and Materials in RIBA Architecture Parts 1, 2 and 3, not a summary of it.

1. 1

   Structural Principles

   4 topics

   • Loads, forces and load paths
     • Dead, live, wind and seismic loads
     • Tension, compression, bending and shear
   • Foundations and substructure
     • Strip, raft, pad and pile foundations
     • Ground investigation and soil bearing capacity
   • Structural systems and grids
     • Frame, load-bearing wall and shell systems
     • Spanning, cantilevers and transfer structures
   • Stability, bracing and movement
2. 2

   Building Materials and Their Behaviour

   6 topics

   • Concrete, cement and reinforcement
   • Steel and metals
     • Hot-rolled sections and connections
     • Corrosion and protective treatments
   • Timber and engineered wood
     • CLT, glulam and mass timber
     • Moisture, movement and durability
   • Masonry, brick and blockwork
   • Glass, polymers and composites
   • Embodied carbon and material selection
3. 3

   Building Envelope and Detailing

   6 topics

   • Wall build-ups and cavity construction
   • Roof systems, pitched and flat
     • Warm and cold roof construction
     • Drainage and rainwater goods
   • Junctions, thermal bridging and continuity
     • Cold bridging and condensation risk
     • Airtightness lines and tapes
   • Cladding, rainscreen and facade systems
   • Fenestration, glazing and curtain walling
   • Waterproofing and damp-proofing
4. 4

   Building Performance and Defects

   4 topics

   • Moisture, interstitial condensation and mould
   • Acoustic separation and sound insulation
   • Fire performance of construction
   • Common defects and remediation

Construction Technology and Materials flashcards for RIBA Architecture Parts 1, 2 and 3

20 of 65 cards from the Construction Technology and Materials deck — real questions with worked answers.

1. What is a 'load path' in a building structure?

   The continuous route by which loads are transferred through structural elements down to the foundations and ultimately into the ground. Every load (vertical and lateral) must have an uninterrupted path; a break in continuity causes failure.

2. Distinguish dead loads, imposed (live) loads and wind loads.

   Dead loads are permanent self-weight of the structure and fixed elements; imposed (live) loads are variable occupancy loads (people, furniture, snow); wind loads are lateral/uplift pressures from wind. In Eurocodes: permanent action $G$, variable action $Q$, wind action $W$.

3. How is uniformly distributed load (UDL) converted to a point reaction on a simply supported beam, and what is the maximum bending moment?

   For a simply supported beam of span $L$ with UDL $w$, each reaction $R = \frac{wL}{2}$ and the maximum mid-span bending moment is $M_{max} = \frac{wL^{2}}{8}$.

4. What ultimate limit state load combination factors does Eurocode 0 typically apply to permanent and leading variable actions?

   A common ULS combination is $1.35G_k + 1.5Q_k$, where permanent actions are factored by $\gamma_G = 1.35$ and leading variable actions by $\gamma_Q = 1.5$.

5. What is the difference between a shallow and a deep foundation, and give an example of each?

   Shallow foundations transfer load to soil near the surface (e.g. strip, pad, raft footings). Deep foundations transfer load to deeper, stronger strata (e.g. bored or driven piles) when surface soils are weak.

6. When is a raft foundation preferred over strip footings?

   A raft (mat) is used where bearing capacity is low or settlement must be evened out across the whole footprint, where column loads are heavy/close together, or where ground is variable. It spreads the entire building load over a large area to reduce bearing pressure.

7. What is the function of a pile cap and how do end-bearing and friction piles differ?

   A pile cap distributes column loads onto a group of piles. End-bearing piles transfer load through their tip onto firm strata/rock; friction (floating) piles transfer load via skin friction along the shaft into surrounding soil.

8. Define bearing pressure and give its simple formula.

   Bearing pressure is the contact stress a foundation exerts on soil: $q = \frac{P}{A}$, where $P$ is the applied load and $A$ is the foundation contact area. It must not exceed the allowable bearing capacity of the soil.

9. What is a structural grid and why is a regular grid advantageous?

   A structural grid is the regular network of lines (columns/beams) on plan that organises the primary structure. A regular grid simplifies fabrication, repetition, coordination of services and partitions, and improves buildability and economy.

10. Compare a load-bearing wall system with a frame (skeletal) structure.

    In a load-bearing wall system, walls carry vertical and lateral loads (limiting openings and flexibility). In a frame structure, columns and beams carry loads, freeing walls to be non-structural infill/cladding, allowing open plans and large openings.

11. What is the difference between a one-way and a two-way spanning slab?

    A one-way slab spans predominantly in one direction (supported on two opposite sides, or aspect ratio $> 2$). A two-way slab spans in both directions (supported on four sides, aspect ratio $\leq 2$), distributing load to all supports.

12. How does lateral (wind/seismic) stability differ from gravity load resistance in a structure?

    Gravity resistance carries vertical loads down columns/walls to foundations. Lateral stability resists horizontal loads (wind, seismic) and prevents sway/overturning using shear walls, bracing, or moment (rigid) frames that transfer horizontal forces to foundations.

13. Name three common methods of providing lateral stability to a framed building.

    (1) Cross/diagonal bracing (triangulation), (2) shear walls or a reinforced concrete core, (3) moment-resisting (rigid/portal) frames with stiff beam-column connections.

14. Why is triangulation fundamental to bracing?

    A triangle is the only polygon that cannot change shape without changing a member length, so a triangulated (braced) frame is geometrically stable. Rectangular frames without bracing are mechanisms that can rack/sway under lateral load.

15. What is a movement joint and name the main types of building movement it accommodates.

    A movement joint is a deliberate gap allowing components to expand/contract without cracking. It accommodates thermal movement, moisture (shrinkage/expansion), structural deflection/settlement, and seismic movement. Types include expansion, contraction, settlement and seismic joints.

16. What does the coefficient of thermal expansion describe, and how is thermal movement calculated?

    It is the fractional change in length per degree of temperature change, $\alpha$ (units $\mathrm{K^{-1}}$). Length change is $\Delta L = \alpha \, L \, \Delta T$, where $L$ is original length and $\Delta T$ the temperature change.

17. What is the difference between cement and concrete?

    Cement (e.g. Portland cement) is the binder powder that, with water, forms a paste that hardens. Concrete is the composite of cement paste binding fine and coarse aggregate. Cement is an ingredient of concrete, not a synonym.

18. What is the water/cement ratio and how does it affect concrete?

    It is the mass ratio of water to cement, $\frac{w}{c}$. A lower ratio gives higher strength and durability but reduced workability; excess water increases porosity and reduces strength. Typical structural concrete uses $\frac{w}{c} \approx 0.4$–$0.6$.

19. Why is steel reinforcement placed in the tension zone of concrete, and why do their thermal properties matter?

    Concrete is strong in compression but weak in tension, so steel reinforcement carries tensile stresses. The two work together because steel and concrete have similar coefficients of thermal expansion ($\approx 12 \times 10^{-6}\,\mathrm{K^{-1}}$), avoiding differential movement, and concrete protects steel from corrosion/fire (alkaline passivation).

20. How is concrete compressive strength specified in Eurocode 2 (e.g. C30/37)?

    As $C\,f_{ck,cyl}/f_{ck,cube}$: the first number is the characteristic cylinder strength and the second the characteristic cube strength in $\mathrm{N/mm^{2}}$. C30/37 means $30\,\mathrm{N/mm^{2}}$ cylinder and $37\,\mathrm{N/mm^{2}}$ cube characteristic strength.

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