Project 1
GIVEN -
|
Building floors |
G + 6 + R |
|
Plan dimension |
B = 25m , L = 16m |
|
Storey Height |
h = 3.5m |
|
Soil |
Hard soil |
|
Use |
Residential Purpose |
|
Safe Bearing Capacity |
180 kN/m2 |
|
Maximum slab thickness |
150mm |
Assume suitable sections for structural elements. Follow IS456, IS1893 and IS 875
Aim:-
To design a multi-storey Residential Building located in Bangalore using STAAD Pro Connect Edition, Staad RCDC and Staad Foundation.
PROCEDURE -
Unit weight of the materials
Reinforced Cement Concrete = 2525 kN/m3kN/m3
Plain Cement Concrete = 2424 kN/m3kN/m3
Cement Concrete Screed = 2020 kN/m3kN/m3
Cement Masonry Units = 2222 kN/m3kN/m3
Structural Steel = 78.578.5 kN/m3kN/m3
Soil = 1818 kN/m3kN/m3
Dead Load
Floor slab
Slab weight = 3.753.75 kN/m2kN/m2 (0.15m×25kN/m3)(0.15m×25kN/m3)
Partitions = 1.51.5 kN/m2kN/m2
Floor Finish = 2.52.5 kN/m2kN/m2
Miscellaneous = 11 kN/m2kN/m2
Total Floor Load = 8.75 kN/m2
Roof slab
Slab weight = 3.753.75 kN/m2kN/m2 (0.15m×25kN/m3)(0.15m×25kN/m3)
Insulaions and Water Proofing = 0.50.5 kN/m2kN/m2
MEP Services = 0.50.5 kN/m2kN/m2
Miscellaneous = 0.50.5 kN/m2kN/m2
Total Roof Load = 5.25 kN/m2kN/m2
Live Load
Floor slab
Common Corridor = 33 kN/m2kN/m2
Total Floor Load = 3 kN/m2kN/m2
Roof slab
Accessible Roof = 1.51.5 kN/m2kN/m2
Total Roof Load = 1.5 kN/m2
STRUCTURAL MODEL -
WIND LOAD CALCULATION -
| Calculation of Wind Load (IS 875 - Part 3) | ||||||||
| Design Wind Speed | Vz | = | Vb k1 k2 k3 k4 m/s | |||||
| Basic Wind Speed | Vb | = | 33 | m/s | ||||
| Probability factor | k1 | = | 1 | |||||
| Terrain factor , Category | for k2 | = | 4, B | |||||
| Topography factor | k3 | = | 1 | |||||
| Design Wind Pressure | Pz | = | 0.6 Vz2 | |||||
| Height | k2 | Vz | Pz | Pz in kN | ||||
| 3.5 | 0.76 | 25 | 377.40 | 0.38 | ||||
| 7.0 | 0.76 | 25 | 375.00 | 0.38 | ||||
| 10.5 | 0.76 | 25 | 375.00 | 0.38 | ||||
| 14.0 | 0.76 | 25 | 375.00 | 0.38 | ||||
| 17.5 | 0.76 | 25 | 375.00 | 0.38 | ||||
| 21.0 | 0.77 | 25 | 387.40 | 0.39 | ||||
| 24.5 | 0.84 | 28 | ###### | 1.06 | ||||
| 26.0 | 0.86 | 28 | 483.25 | 0.48 | ||||
SEISMIC LOAD CALCULATION -
Result:-
Thus, multi-storey Residential Building located in Bangalore using STAAD Pro Connect Edition is been designed.