This document describes the structural design plans for extending an existing bungalow. The ground floor extension includes expanding the wet kitchen, adding a corridor and maid's room, and installing a terrace. The first floor will include a new library, studio, and enlarged balcony. Load calculations are provided for the dead and live loads on each structural component based on material densities and intended uses of the spaces. Structural plans show the layout and load distribution to beams and columns.

1. PROJECT 2
Extension of R.C. Bungalow
Building Structures [ARC 2522/2523]
Name : Lim Jian Jun
Student ID : 0316867
Tutor : Mr. Adib

2. Design Brief
The design extension of the Ground Floor consists of extension of existing wet kitchen,
a corridor towards a maid room, food storage pantry and lastly the terrace for hanging
laundry. Then, following by the First floor which comprised of a library, studio and
extended balcony. Some of the wall was demolished to make extension possible. The
roof is made with contemporary concrete roof slab.
Figure 1 3D diagram of structural component

3. Building Plans with Extension Design
Ground Floor Structural Plan
Scale 1 : 150

4. First Floor Structural Plan
Scale 1 : 150

5. Second Floor Structural Plan
Scale 1 : 150

6. Quantity dead loads acting on structure
Density of reinforced concrete to be 24kN/m3 according to UBBL
Beam self-weight = 0.2m x 0.32m x 24kN/m3 = 1.54kN/m2
Density of brick to be 19kN/m3 according to UBBL
Brick wall weight = 3.0m x 0.15m x 19kN/m3 = 8.55kN/m2
1. Extended Wet Kitchen
Slab thickness = 150mm
Slab Self Weight = 0.15 x 24kN/m3 = 3.6 kN/m2
2. Food Storage Pantry
Slab thickness = 150mm
Slab Self Weight = 0.15 x 24kN/m3 = 3.6 kN/m2
3. Maid Room
Slab thickness = 150mm
Slab Self Weight = 0.15 x 24kN/m3 = 3.6 kN/m2
4. Toilet
Slab thickness = 100mm
Slab Self Weight = 0.1 x 24kN/m3 = 2.4 kN/m2
5. Terrace
Slab thickness = 100mm
Slab Self Weight = 0.1 x 24kN/m3 = 2.4 kN/m2
6. Corridor
Slab thickness = 100mm
Slab Self Weight = 0.1 x 24kN/m3 = 2.4 kN/m2

7. 7. Balcony
Slab thickness = 100mm
Slab Self Weight = 0.1 x 24kN/m3 = 2.4 kN/m2
8. Library
Slab thickness = 150mm
Slab Self Weight = 0.15 x 24kN/m3 = 3.6 kN/m2
9. Studio
Slab thickness = 150mm
Slab Self Weight = 0.15 x 24kN/m3 = 3.6 kN/m2
Quantity live loads acting on structure
Roof – 0.5kN/m2 (assumed/required in brief)
(According to 4th schedule of UBBL for live load according to the function of the space)
1. Balcony – 1.5kN/m2
2. Wet Kitchen – 3.0kN/m2
3. Maid room – 1.5kN/m2
4. Corridor – 1.5kN/m2
5. Library – 4.0 kN/m2
6. Terrace – 1.5kN/m2
7. Food Storage Pantry – 2.4kN/m2
8. Studio – 2.0 kN/m2
9. Toilet – 2.0 kN/m2

8. Structural Plan

10. Load distribution plan for beam design
The spaces are analyzed and calculated to find the direction of load distributed to the
beams in specific spaces. The slab is then indicated with arrow to show load
contribution of slab towards the beams.
1. Extended Wet Kitchen
4.855m / 3.685m = 1.32 < 2 ( two way slab)
2. Food Storage Pantry
3.835m / 2.500m = 1.53 < 2 ( two way slab)
3. Maid Room (a)
2.665m / 2.425m = 1.09 < 2 ( two way slab)
Maid Room (b)
3.835m / 2.355m = 1.63 < 2 ( two way slab)
4. Toilet
2.425m / 1.17m = 2.07 > 2 ( One way slab)
5. Terrace
3.835m / 3.720m = 1.03 < 2 ( two way slab)
6. Corridor
4.855m / 1.17m = 4.15 > 2 ( One way slab)
7. Balcony
4.855m / 3.685m = 1.32 < 2 ( two way slab)
8. Library
6.145m / 3.835m = 1.6 < 2 ( two way slab)
9. Studio
4.855m / 3.835m = 1.26 < 2 ( two way slab)

11. Load distribution plan for beam design

13. Analysis of Beam Components

14. Load distribution plan for
column design

15. Analysis of Column Components