Superstructure Flashcards Preview

Construction Technology > Superstructure > Flashcards

Flashcards in Superstructure Deck (8)
Loading flashcards...
1

Where would you typically see an RC Frame?

Medium-High Rise commercial or residential projects

2

How long does concrete take to cure?

Set: 24-48 hours`
Full cure: 28 days

3

What are the advantages of using precast concrete frame?

Produced in factory-controlled conditions
Eliminates curing times and formwork
Can be assembled in cold weather and generally by semi-skilled labour

4

What types of upper floor are available?

 In-situ reinforced concrete – can be ribbed or waffled to reduce depth and weight (effectively a honey comb effect)
 Pre-cast concrete – for example, pot and beam composite floor.
 Profiled steel deck (Metsec) acting as permanent soffit and formwork. In-situ concrete in-fill. Principally used on steel framed buildings.

5

What is slip forming?

× A method for constructing a repetitive structure such as a core, lift shaft or stairwell.
× The formwork is constantly moving upwards, approx. 1” every 10mins.

6

What is jump forming?

× Jump forming is where a significant height of concrete is cast and left to cure.
× The whole formwork module is then moved up and repeated.

7

What is a traditional roof built up of?

Purlin
Joist
Strut
Rafter
Hanger

8

What is cross laminated timber?

Glued together panels of timber to provide greater strength