Construction Technology and Environmental Services Flashcards
what are the different types of foundations?
Concrete strip
Raft
Pile
What are the advantages and disadvantages of strip foundations
Advantages
- Quicker to construct
- Cheaper
- Can be adapted to different structures
Disadvantages
- Not suitable for all building
- Not as strong as other types of foundations
- Not suitable with poor shallow soil conditions
What are the advantages and disadvantages of raft foundations
Advantages
- can be provided where the shallow foundation is necessary but soil condition is poor.
- It resists differential settlement
- can be considered as a floor slab so reduced cost for a floor slab
Advantages
- Edge corrosion
- More expensive that strip foundations
What are the advantages and disadvantages of pile foundations
Advantages
- High bearing capacity making it suitable for structures with heavy loads
-Suitable for areas with weak shallow soil conditions.
- Pile foundations can be adapted to different types of soil, including cohesive, non-cohesive, and mixed soils, allowing for flexibility in construction projects.
Disadvantages
- More expensive
- Noise and vibration
- Not suitable for site with limited access.
What are the types of external wall systems use on construction projects
Cavity Wall
Rainscreem cladding
Curtain wall
Solid walls
What is timber frame construction
Prefabricated external and internal stud walls, floor joists and roof trusses to form the super-structure which is a complete structural frame that transfers the vertical and horizontal loads to the foundations.
What design aspects did you consider on you heather house project
- A the sizes of change rooms required
- Fatalities required to be provided
What are the requirements by sports England which impacted the design.
Ensuring access to disable users
Separation of changing and wet and muddy areas from any social and indoor sports accommodation
Provide well considered entrance and lobbies and make provision for boot cleaning
Good external lighting, security systems and CCTV installation.
What is the construction methodology of a pile foundations
Construction of a piling male
CFA - A piling rig soil in excavated a at the same time concrete is being pumped into the ground
Bore Piles - hole is excavated in the ground, a reinforcement change is then put in and concrete is poured
Driven piles - Precast concrete piles are driven in direct into the ground using a piling machine
On King Hill - What are the advantages did you advise the client on a still frame over a concrete frame?
Advantages
- Speed of construction
- Typical allows for longer spans
- Can be fabricated off site
- Lower embodied carbon
Disadvantages
- Less flexibility - Cannot be altered on site
- Required fire protection
- Insulation required to improve thermal conductivity.
How did you advise the client that a modular building was the most efficient in terms of time and cost?
I did a soft market test on the design based on the indication design prepared by the architect. The supplier also advised on the lead time of the unit and I compared tihs against the steel frame proposed
What is the difference between approve document and building regulations
Approve documents provides guidance on ways to meet the building regulations
