Construction of a Tall Timber Building at Robina, Gold Coast

STRUCTURES AND SOIL MECHANICS
[Author Name(s), First M. Last, Omit Titles and Degrees]
[Institutional Affiliation(s)]

Executive summary
There is use of different materials to meet the demands of housings in various parts of the world in
the construction industry. Choice of the materials may sometimes be guided by the tastes of the
clients who may wish to have unique product. In this particular piece of work, construction of a tall
timber building at Robina, Gold Cost has been effectively discussed. The construction has been
guided after a proper assessment of the “Treet - a 14-Storey Timber Residential Building”. The
tall solid timber structure has been constructed on the podium made of concrete/.The structure is
134 feet in its height. The structure is unique by the fact that it is made up of entirely the solid
wood. The wooden structure is found in the staircases and also in the shafts of the elevator. The
exterior walls and the cross are also made of the wooden components. The structure is a
combination of the glulam beams and columns and also the CLT columns. The study has
effectively evaluated various aspect of the design and construction or building a tall timber building
at Robina, Gold Coast. Various engineering principles and concepts have been put into
consideration. This included the study of the properties of the main materials used in the
construction which is timber

Contents
Executive summary....................................................................................................... 2
Introduction................................................................................................................... 3
Loading.......................................................................................................................... 3
Materials used............................................................................................................ 5
List of uses for the floors............................................................................................ 8
Part (1) Fire protection.............................................................................................. 11
Part (2) Reasoning behind GLT and PSL for durability..............................................12
10. Horizontal System............................................................................................... 15
11. Strategies.............................................................................................................. 15
Use of concrete shear wall..................................................................................... 15
14. Connections........................................................................................................... 17
16. Footing system...................................................................................................... 21
Deflection................................................................................................................. 22
CONCLUSION............................................................................................................... 34
REFERENCES................................................................................................................ 35
Introduction
Construction industry exploits different materials to meet the demands of housings in various parts
of the world. The selection of the materials may sometimes be guided by the tastes of the clients

who may wish to have unique product. In this particular piece of work, construction of a tall timber
building at Robina, Gold Cost has been effectively discussed. The construction has been guided
after a proper assessment of the “Treet - a 14-Storey Timber Residential Building”. The tall solid
timber structure has been constructed on the podium made of concrete/.The structure is 134 feet in
its height. The structure is unique by the fact that it is made up of entirely the solid wood(Su 2018).
The wooden structure is found in the staircases and also in the shafts of the elevator. The exterior
walls and the cross are also made of the wooden components. The structure is a combination of the
glulam beams and columns and also the CLT columns. Al-Mukhtar, Khattab and Alcover 2012).
Loading
Dead loads on respective floors.
Figure 1:Loading of the structure (Willebrands 2017)
L
2
L
L
1

Figure 2:Dead loads on the structure from the roof made of Iron sheets(Willebrands 2017.).
Figure 3:Dead loads on the structure made of timber(Willebrand 2017)

Materials used
The construction process has specifically exploited the use of the timber products/wooden elements
that have been joined using various methods including nailing.
3. Dynamic load calculation
1st Storey:
2a)Dead Load:
Assumption: It is assumed that slab to be non-suspended slab
Floor system = 0.75 kPa (assumed) x (6/2 + 4/2) x (5.6/2 + 4.4/2) = 18.75 kN Column
= 0.45 x 0.4 x 4.75 x 24 = 20.52 kN
Wall unit = 20 x 0.175 x (6/2 + 4/2) x 4.75 = 83.13 kN
Overall = 121.4 kN
2b)Second Storey:
Dead Load:
Slab = 0.15m (assumed) x 24 x (6/2 + 4/2) x (5.6/2 + 4.4/2) = 90 kN Floor
system = 0.75 kPa (assumed) x (6/2 + 4/2) x (5.6/2 + 4.4/2) = 18.75 kN Column =
0.45 x 0.4 x 3.46 x 24 = 15 kN wall system = 20
x 0.175 x (6/2 + 4/2) x (5.6/2 + 4.4/2) = 60.55 Primary Beam = 24 x
0.6m x 0.8m x (6/2 + 4/2) = 57.6 kN
Secondary Beam = 24 x 0.25 x 0.45 x (6/2 + 4/2) = 13.5 kN
Overall = 256.4 kN

Live Load:
LL = 4 KN//m2 (assumed) x (6/2 + 4/2) x (5.6/2 + 4.4/2) = 100 kN
2nd upper or Third storey
(i) Dead Load:
system Slab = 0.15m (assumed) x 24 x (6/2 + 4/2) x (5.6/2) = 51.4 kN
Beam = 24 x 0.6m x 0.8m x 6 = 68.1 KN
Floor system = 0.75 kPa (assumed) x (6/2 + 4/2) x (5.6/2) = 10.5 kN
Column = 0.45 x 0.4 x 3.06 x 24 = 12.22 kN
wall system = 20 x 0.175 x (6/2 + 4/2) x 3.06 = 54.55 kN
Overall = 197.77 kN
(ii) Live Load: (2nd Upper Storey Rooms)
LL = 4 KN/m2 (assumed) x (6/2 + 4/2) x (5.6/2) = 50 kN

(2d) Roof Level:
Wall unit = 20 x 0.175 x 1.81 x (6/2 + 4/2) =32 kN Dead Load service
= 0.75 kPa (assumed) x (5.6/2 + 4.4/2) x (6/2 + 4/2) = 18.75 kN
Overall = 53.75 kN
Dead Loads of roof = 0.75KN/m2 x 5 x 5 = 14.17
Roof Materials kN = 1.5KN//m2 x 5 x 5 = 57.25 KN
Summation of Dead Load = 122.4 + 255.4 + 197.77 + 51.75 + 56.25 = 682.57 kN
Footing strip Size of 2m width (instead of 4m) x 4m (range Length) x .75mm thick
Weight of Ground Footing Foundation = 24.0 x 2 x 4 x .75 =145.0 KN
Soil Pressure force = 989.64 / (2.0 x 4.0) = 124.71 KN//m2
Floor Plan