12 - Construction Technology and Environmental Services Flashcards
(73 cards)
What is substructure?
- The lower portion of the building (in the ground) which supports the superstructure
- Transfers loads of the building into the ground
- i.e. foundations, basements
What is superstructure?
Structural elements of the building above ground (generally everything above the DPC)
i.e walls, frame, roof, windows, doors
What is the external envelope?
The components that seperate and protect indoors from outdoors/from external environment i.e walls, roof, floors.
Including systems for controlling and disposing water i.e. guttering and DPC.
What do you understand by substructure?
The lower part of a building, (in the ground).
Transmits the loads from the superstructure to the ground.
i.e. foundations and basements
Give me an example of a substructure
Basement
Pile foundations
Pad foundations
Retaining wall
What do you understand by superstructure in construction
The structural components of a building constructed above ground (generally everything above the DPC)
Give me 2 examples of superstructure in a building
Windows
Doors
Walls
Roof
Columns
Beams
What are the types of foundation you are aware of?
Pad
Strip
Piles
Raft
What are the Building Regulations?
- Minimum standards for design, construction and alterations in the UK
- Applicable to most new buildings and alterations
- Including for example, fire safety, ventilation, access, structure, overheating
Tell me about the process of construction and alteration?
Construction and alteration are works undertaken to a particular building or site.
Construction - process of building something i.e. house, but can also include alteration, demolition, remodelling
Alteration - work intended to change function or appearance of a place to change/modify/improve performance or nature of use.
Tell me about you understanding of operational and maintenance processes?
Processes that determine how a building should be operated, maintained, cleaned and decomissioned.
E.g. inspections, cleaning, minor part replacement, lubrication, repair
What are the benefits of off-site construction
- Quality is more consistent
- Can be brought in when needed - less concern over space
- Less time consuming to construct on site.
- Hazard reduction - less chance of an accident in the factory than on site
- Efficiency
- Controlled enviornment
- Less waste
- Speed - prefab can be in manufacture while other works are ongoing on site
What regulations are there which control the design of a project?
- Building Regulations 2010
- CDM 2015
What are building regulations?
UK standards that apply to most building works including new buildings, conversions, renovations, extensions are going to be safe, healthy and high performing.
What sort of construction can each of the foundations be used for?
Pile - to transfer heavy loads into deeper soil where shallow foundations can not be used. Usually where soil near ground surface is unsuitable.
Strip - most suitable where soil is of relatively good bearing capacity. For low and medium-rise domestic buildings.
Pad - for localised loads, i.e. columns.
Raft - differential settlement, spread load of structure, basement, low-bearing capacity soil
What are the Approved Documents, give some examples
- Documents that provide guidance on how to meet Building Regs
- A ‘structure’
- B ‘fire safety’
- C ‘site preparation’
- D ‘toxic substance’
- E ‘ sound resistance’
- F ‘ventilation’
- G ‘sanitation, hot water safety’
- H ‘Drainage and waste disposal’
- J ‘Combustion’
- K ‘ protecting from falling’
- L ‘conservation of fuel and power’
- M ‘access’
- O ‘overheating’
- P ‘ electrical safety’
- Q ‘ security in dwellings’
- R ‘High speed electronic communication networks’
- S ‘EV charging’
What is your understanding of soil investigation?
Investigations to determine characteristics of soil in an area such as classifying soil, soil behaviour, ground water table, bearing capacity and settlement rate.
Such as trial pits and bore holes
What are temporary works?
- Parts of the project that are needed to enable the permanent works to built.
- For e.g. for access or safety reasons.
- Incl, scaffold, formwork, excavation support
What are the Building Regulations
UK regulations to ensure new buildings, conversions, extensions are going to be healthy, safe and high perfoming.
What are the Approved Documents
A suite of documents that provide guidance on how to comply to the Building Regs
What is the importance of levelling during highways work?
- to plan and estimate works
- finalise final level
- to determine elevations of certain points
- decide slope for drainage
- calculate cut & fill
*
Leveling is a method or element of land surveying which deals with determining points on land surface above sea level.
What are British Standards
Publication by British Standards Institute.
Outlined ‘generally accepted’ standards incl technicals specs, practices, materials, components, design and construction.
What are the typical components of site investigations?
- Planning - set clear objectives, incl scope and requirements
- Desk study - Reviewing historical, geological and environmental information
- Site reconnaissance /walkover survey - Identifying actual and potential hazards and the design of the main investigation.
- Main investigation and reporting: Including intrusive and non-intrusive sampling and testing
Site investigations, what are the main site considerations?
- Contaminants
- Susceptibility to groundwater levels and flow
- Underlying geology, and ground and hydro-geological properties.
- Identification of physical hazards.
- Identification of methane and other gases.
- Determining an appropriate design.
- Providing soil parameters for design and construction