1. 029
CAR PARKSCAR PARKS
(P1)
Dr f Dejahang (BSc CEng, BSc (Hons) Construction Mgmt, MSc, MCIOB, PhD)
http://www.cpi-team.com

2. CAR PARKSCAR PARKS
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MICROSOFT OneDrive PPT’s PDF’s BOOK LESSONS
Dr f Dejahang BSc CEng, BSc (Hons) Construction Mgmt, MSc, PhD

3. CAR PARKS
Multi-storey car park
(profitability)
 In the construction of
multi-storey car parks,
the idea of profitability is
very important to the
developer and covers a
number of aspects.

4. CAR PARKS
Steel construction makes it
possible-it can be achieved by:
reducing construction costs
optimising the occupation of the
car park
improve return on investment
This is achieved by gaining
floor area (in m2)

5. OPTIMISING THE OCCUPATION
Multi-storey car park-high
Occupation rate
This can only be achieved with high
quality building materials and:
1.Increased storey heights
2.Wide ramps
3.slim columns and high quality
fittings
4.increase the user’s comfort and
safety

6. CAR PARKS
All costs connected with the
construction and operation of the car
park until the end of its useful life
must be taken into account.
They include:
the building costs
the time of construction
the operating costs and the parking
fees

7. PROFITABILITY ANALYSIS

8. PROFITABILITY ANALYSIS

9. PROFITABILITY ANALYSIS

10. ADVANTAGES
OF STEEL STRUCTURES

11. ADVANTAGES
OF STEEL STRUCTURES

12. ADVANTAGES
OF STEEL STRUCTURES

13. CAR PARKS
When designing the facade of a multi-storey car
park, a major part of the outside walls should
remain open
Bad
desig
n

14. COLUMNS

15. COLUMNS

16. COLUMNS

17. COLUMNS

18. COLUMNS
In underground car parks, the position
of The columns normally depends on
the grid of the framework of the
building above.
In this case,
limit the cross-section of the columns
to the strict minimum
use hot-rolled sections or composite
columns

19. COLUMNS
steel grade save weight and
to reduce the size of the
columns
For multi-story car park use:
high-strength steel featuring
a 30% higher yield strength
than grade S355.

20. FLOOR BEAMS
The choice of the floor beams
depends on their span, the type of
concrete deck
the available construction height
Deck types
1.cast-in-place concrete,
2.composite or prefabricated
concrete slabs.

21. FLOOR BEAMS

22. FLOOR BEAMS

23. FLOOR BEAMS

24. FLOOR BEAMS

25. METAL STUDS WELDED ON THE
UPPER FLANGE OF THE H-SECTION

26. FLOOR BEAMS
Self-supporting metal decks
from ArcelorMittal
Construction in combination
with cast-in place concrete
avoid investing in the erection
of formwork supporting frames,
thereby shortening construction
time.

27. DEPENDING ON THE TYPE, THE
METAL DECKS ACT SOLELY AS
FORMWORK OR IN COMPOSITE
ACTION
Composite action by sealing the
joints with special mortar

28. COMPOSITE STEEL SECTIONS
WITH CAMBER BEFORE
PLACEMENT OF THE METAL
DECKS

29. STUDS WELDED THROUGH THE
METAL DECK ON SITE

30. CORROSION
 Corrosion protection of steel car park
structures is usually achieved by hot dip
galvanization.
 During this process, rust and mill scale are
removed from the surface of the beam in a
pickling bath.
 Then 5-10 minutes in the bath of liquid zinc
at 450 °C.
 Typically, a 150-250 μm thick zinc layer is
formed.
 This will protect the steel surface against
atmospheric corrosion.

31. CORROSION
In severe climatic conditions;
An additional paint can be
applied on top of the zinc layer.
This so-called DUPLEX system
It minimises maintenance costs
and substantially increases he
duration of protection against
corrosion’

32. CORROSION PROTECTION BY
PAINTS
 Corrosion protection by paints consists of cleaning
the surface of the steel section.
 Next applying several layers of compatible coats.
A typical surface treatment reads as
follows:
 shot blasting of the surface,
 degree of purity SA 2.5
 l primer – 15 to 25 μm
 one or two intermediary coat layers,
 (thickness – 2 x 40 or 1 x 80 μm)
 l two finishing coat layers
 (thickness – 2 x 60 μm)

33. FIRE PROTECTION
According to the
regulations of most
European countries, there
are no fire resistance
requirements for steel
structures of open multi-
storey car parks.

34. CAR PARKS

35. SUSTAINABLE DEVELOPMENT
Steel structures built with H
sections make it possible to:
reduce the quantity of construction
materials by using high-strength
steels,
limit transportation (the lower
weight of the structural elements)
save construction time by making
use of prefabrication,

36. SUSTAINABLE DEVELOPMENT
 reduce waste and other nuisances at the
job site by using dry assembly methods,
 design structures that can be dismantled
and reused for other purposes,
 increase the usable floor area by favouring
high strength S355 or S460 steels,
 meet environmental requirements by
using recyclable products made from
recycled scrap.