Superstructure construction

1. SUPERSTRUCTURE
CONSTRUCTION
At the end of this topic, students should be able to:
1. List superstructure construction.
2. Describe the methods of superstructure
construction.

2. SUPERSTRUCTURE CONSTRUCTION
• Superstructure – building parts
located above the ground level such
as column, beam, floor, wall and
roof.
• Materials - timber, steel and
concrete.

3. Frame Structure Construction
Timber
Frame
Floor
Wall
Roof

4. Frame Structure Construction
Reinforced
Concrete
Frame
Column
& Beam
Construction
Formwork
Design
Reinforced
Steel Bar
Construction
Concrete
Pouring
Formwork
stripping

5. A) Timber Floor
i) Floor


Timber floor consist of plank
of wood with 25mm
thickness which is supported
by joist with size of 50mm x
75mm to 100mm.
Distance for joist is between
300mm x 600mm from
centre to centre.

6. i) Floor
• Strutting – installed between joist.
• Purpose – to prevent the joist from twisting.

7. i) Floor


All joist are arranged on timber beam.
Timber beam should be bigger than timber joist.

8. A) Timber Frame
ii) Wall

Pieces of planks are used to constructed a wooden wall by
nailing on timber wall structure.

9. A) Timber Frame
iii) Roof

i.
ii.
iii.
iv.
v.

i.
ii.
Factors that influenced roof structure design:
Span distance.
Types of roof cover.
Roof cover load and weather load.
Cost.
Aesthetic value.
Main characteristics of timber roof structure:
Enough strength to support the cover load and external load
such as rain and storm.
All the frame parts consist o treated hard timber.

10. Types of roof structure from timber

11. B) Reinforced Concrete Frame
Column and beam construction
Concrete column formwork
Concrete beam formwork
Beam is a part of a building which sustains load and transfer it to
column.
The column then transfer all its load to the building foundation.

12. Procedures for column and beam construction
1.
Formwork design
Formwork construction for
concrete column
Formwork construction for
concrete beam
Concrete formwork purpose is to place and form concrete mixture
according to prescribed size and design.
It is a temporary building structure which needs to be opened when
the concrete inside hardens

13. Procedures for column and beam construction
2.
Reinforcement steel bars installation

14. Procedures for column and beam construction
3.
Concrete pouring

15. Procedures for column and beam construction
4.
Formwork stripping
FORMWORK PART
FORMWORK STRIPPING DURATION
Stripping side parts of beam and
column formwork.
2 – 6 DAYS
Stripping bottom parts, beam
support and other unloading parts
7 – 14 DAYS
Stripping bottom parts beam
support and other loading parts
28 DAYS

16. EXAMPLE OF FORMWORK STRIPPING

17. Load Bearing Wall Construction
Load bearing wall is constructed in
order to support load other than
its own.
Wall will support all loads before
transferring them to the
foundation.
The wall thickness is normally not
less than one brick or 215 mm.
Example of load bearing wall
This wall also uses reinforcement
steel bars or is combined with
column to strengthen its position.

18. Load Bearing Wall Construction
Non-load bearing wall is the wall
which does not support other load
except its own.
This wall is constructed on
building which has frames such as
column and concrete beam.
The wall thickness is sufficient
with only half a brick or 102.5 mm
and is normally constructed with a
stretcher bond.
Example of nonload bearing
wall