TUTORIALS
Load Calculation of Multi-story Buildings
Multi-storey buildings are built with a collection of firmly interrelated beams as well as columns that are called frames. Furthermore, the loads out of walls and beams are transferred to beams and as a result beams’ rotation happens.
For the reason that beams are firmly connected to column, the column’s rotation even takes place. As a result, a load applied at beam is spread via whole system of beam as well as columns.
Distinct/Different Load computation procedure on slab, column, and beam – Column own mass/weight X quantity/number of storeys, Beams own mass/weight for every going/running meter, walls’ load for every going/running meter, The overall load at/on Slab [Self-weight + Dead load + Live load].
Furthermore, the columns even go through bending moments.
With regard to Column – It is acknowledged that the concrete’s self-weight stays around 2400 kg/m3, that is up to 240 kN as well as the steel’s self-weight stays just about 8000 kg/m3.
As a result, a column having dimension 230 mm x 600 mm as well as one % steel as well as 3 meters normal height, the column’s self-weight stays just about 1000 kg for every floor that is just like 10 kN.
- Concrete’s volume is equal to 0.23 x 0.60 x 3 = 0.414 m3
- Concrete’s weight is equal to 0.414 x 2400 is equal to 993.6 kg
- Steel’s weight (one %) in concrete is equal to 0.414 x 0.01 x 8000 is equal to 33 kg
- Overall column’s weight is equal to 994 + 33 is equal to 1026 kg is equal to 10 KN
With regard to computation objective, the columns’ self weight is contemplated like 10 to 15 kN for every floor.
With regard to Beam – Similar procedure is abided with regard to beam. Assume every meter of the beam comprises measurements of 230 mm x 450 mm with no slab thickness.
Assume every [1 m] meter of the beam comprises the subsequent measurements
- 230 mm x 450 mm without slab.
- Concrete’s volume is equal to 0.23 x 0.60 x 1 = 0.138 m3
- Concrete’s weight is equal to 0.138 x 2400 is equal to 333 kg
- Steel’s weight (two %) in concrete = = 0.138 x 0.02 x 8000 is equal to 22 kg
- Overall Column’s Weight is equal to 333 + 22 = 355 kg/m is equal to 3.5 KN/m
As a result, the self-weight stays just about 3.5 kN for every going/running meter.
With regard to Walls – It is recognized that the bricks’ density varies amid 1500 to 2000 kg for every cubic meter.
With regard to a six inch thick Brick wall having 3 meter height as well as one meter length, the load / running meter is similar to 0.150 x 1 x 3 x 2000 is equal to 900 kg that is similar to 9 kN/meter. In order to do load computations of brick for every going/running meter with regard to a brick sort, that technique can be utilized.
To get more clear idea, go through the following video tutorial.
Lecturer: Civil Engineering Mastery
