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APC QS 2021 > Construction Technology > Flashcards

Construction Technology Flashcards

1
Q

What information would you expect at stage 2

A

Concept Design

Outline proposals for structural design, building services, outline specification

Final project brief issued

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2
Q

What are the different types of asbestos

A

Brown
Yellow
Blue

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3
Q

Why was asbestos used

A

Insulating

strengthening

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4
Q

how can we protect ourselves from asbestos?

A

Asbestos surveys

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5
Q

What information would you expect from the design team at RIBA stage 4

A

A complete integrated design, with detailed Specifications.

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6
Q

What are the different types of Asbestos surveys

A

Management Survey

Refurbishment and demolition survey

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7
Q

Why would you use pad foundations

A

To spread a load of a column over a wide surface area.

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8
Q

what is compressive strength

A

Squeezing force is applied to the object

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9
Q

What forces act on beams

A

tension on the bottom compression at the top

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10
Q

What is the price of Steel

A

Volatile market

£2,500/t Steel beams/columns
£1,300/t Rebar

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11
Q

What are the different concrete grades

A

C10 has 10 newtons of strength

C20 has 20 newtons …

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12
Q

What are the different concrete grades

A

C10 has 10 newtons of strength

C20 has 20 newtons …

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13
Q

What would you do if the level of information provided was not adequate?

A

Important to communicate what you expect at each stage

Inform design team/PM/client of requirements

if programme is extended & design Progress - Great

If not, included clarifications, to state the level of design information and ensure client knows

update risk accordingly

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14
Q

Different types of pile foundation

A

Bored/replacement

Driven/Displaced

Secant Piles

Continuous Piles

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15
Q

When would you use Steel Frame Construction

A

Large open Spans, such as office

Tall buildings as it has better strength to weight ratio then concrete

When flexibility is important

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16
Q

When would you use concrete frame Construction

A

Where larg open spans are not used - residential

Flexbility is less important

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17
Q

Pros/cons of Concrete

A

Pros

  • Good thermal insulator
  • Good accoustice
  • Doesnt require fire protection
  • in-situ is good for cashflow
  • Cladding is ease to connect
  • Can deal with complex geometry

Cons

  • Good concrete subcontractor
  • Bad for embodied carbon
  • Heavy
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18
Q

How would you fix curtain walling facade

A

Bolted (cheaper then welding)
Riveted (fast, like a nail)
Welded (melted together)

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19
Q

Whats the difference between glulam & CLT

A

Glulam is planks of timber laid virtcally ontop of each other - good for Beams/columns

CLT - Cross Laminated Timber
Layers of timber laid perpendicular to each other
- Good for panels and slabs

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20
Q

Pros and cons of timber framed buldings

A

Pros

  • Sustainable
  • low embodied carbon

Cons

  • Cant do high buildings
  • Requires acoustic and fire protection
  • Expensive
  • Fire & rotting treatment
21
Q

What prefab experince do you have

A

Prefabricated unit at Glangwili

cost plan a prefab unit

22
Q

What was included in the cost estimate for the modular building

A 
Excavations 
Foundations 
Unit 
Externals works
Connections to the unit
23
Q

What was included in the cost estimate for the modular building

A 
Excavations/ site prep
Foundations - Strip foundation 
Pod 
delivery & installation costs
Allowance for external doors and windows
services
fit-out 
Externals works
24
Q

Why would you use pre-fab

A

Economies of scale: could be cheaper

Sustainable

  • Less waste
  • factory construction

Quality

Safe, less risk construction in factory

Fast

25
Q

Why would you not use prefab

A

Cost, not always cheaper

finish is sometimes less desireable

26
Q

What is a grade 1 vs grade 2 building

A

Grade 1: building of expectional intreset (buckingham palace

Grade 2: Particularly important buildings

27
Q

What is a stick system

A

Curtain walling installation technique

Secondary steel frame attached to the structure, curtain wall fixed to this

cheaper, slow

28
Q

What is a unitised system

A

Curtain walling installation technique

Pre-fabricated in modules off-site and delivered in panels

Benefits of prefab factory conditions, fast install but long lead time

29
Q

What is rainscreen cladding

A

Non-structural external surface

Formed of outer protective skin (metal, timber, glass, etc ) supporting frame, a cavity and water resistant materials which includes a layer of installation

30
Q

What is the sixe of a brick

A

215mm x102.5mm x65mm

31
Q

How many bricks are in a m2

A

60 approx

32
Q

what are the different types of brick bonds

A

Flemish bond - on stretcher between headers

Stretcher bond - wall just half a brick wide, stretch face showing

33
Q

What are the main types of excavation

A

Open, Premieter tench excavation, Complete excavation

34
Q

What are the main types of excavation

A

Open, Premier tench excavation, Complete excavation

35
Q

Types of basement construction

A

Retaining wall & Raft
Box and Cellular
Piled

36
Q

What is CAT A, CAT B, Shell and Core

A

Different levels of internal fit out

37
Q

What is CAT A

A

Basic level fit-out from a landlord

38
Q

What is included in CAT A

A

Raised access Floor,
Basic M&E fit-out
internal finishes
Blinds

39
Q

What is CAT B

A

Final fit-out by the tenant for the internal space

40
Q

What is included in CAT B

A 
Final Finishes & branding
Installation of offices
Specialist installations
IT equipment
Kitchen 
furniture
41
Q

What is Shell and core

A

The structure of the building, frame, cladding base plant, completed communal areas

42
Q

What is the price of CAT A

A

£50ft2

43
Q

What is the price of CAT B

A

Anything depending on the level of the fit-out

44
Q

What is a day one reinstatement basis cover

A

The sum insured is declared as on the first day of the insurance and an inflation provision is then chosen to reflect the effect of inflation over the cover period.

45
Q

What are Shell and core

A

The structure of the building, frame, cladding base plant, completed communal areas

46
Q

What is a day one reinstatement basis cover

A

The sum insured is declared as on the first day of the insurance and an inflation provision is then chosen to reflect the effect of inflation over the cover period.

47
Q

What is a green roof build up

A 
concrete slab 
Waterproofing membrane
drainage layer 
Filter
growing medium 
vegetation layer
48
Q

What is the cost of a green roof

A

£350/m2

49
Q

What is a green roof build-up

A 
concrete slab 
Waterproofing membrane
drainage layer 
Filter
growing medium 
vegetation layer

APC QS 2021 (3 decks)

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