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Load Calculation On Column, Beam And Slab

Load distribution


For estimations all out burden on sections, Beam, Slab we should think about different burden going ahead the segment. 

Sorts of burdens on the segment 

1-Self-weight of the section x Number of floors 

2-Self-weight of bars per running meter 

3-A heap of dividers for each running meter 

4-Total Load of the piece (Dead burden + Live burden + Self-weight)

The sections are likewise exposed to twisting minutes which must be considered in the last structure. The most ideal approach to plan a decent structure is to utilize progressed auxiliary plan programming like ETABS or STAAD Pro. These devices are alliances in front of manual strategy for basic structure and exceptionally prescribed. 

In expert practice, there are some essential presumptions we use for auxiliary stacking computations. 

For Columns 

Self-weight of Concrete is around 2400 kg for each cubic meter, which is comparable to 240 kN. Self-weight of Steel is around 8000 kg for every cubic meter. Regardless of whether we expect a huge segment size of 230 mm x 600 mm with 1% steel and 3 meters standard stature, oneself load of the section is around 1000 kg for every floor, which is identical to 10 kN. Thus, in my figurings, I expect self-weight of the segment to be between 10 to 15 kN per floor. 

For Beams 

Comparative counts as above. I expect each meter of the bar has measurements of 230 mm x 450 mm barring piece thickness. Thus, self-weight can be around 2.5 kN per running meter. 

For Walls 

The thickness of blocks differs between 1500 to 2000 kg for each cubic meter. For a 6″ thick mass of 3-meter tallness and a length of 1 meter, we can compute the heap per running meter to be equivalent to 0.150 x 1 x 3 x 2000 = 900 kg which is equal to 9 kN/meter. You can figure load per running meter for any block type utilizing this procedure. 

For autoclaved, circulated air through solid squares like Aerocon or Siporex, the weight per cubic meter is between 550 to 700 kg for every cubic meter. By utilizing these squares for development, the divider loads per running meter can be as low as 4 kN/meter, which can bring about a noteworthy decrease in the expense of development. 

For Slab 

Accept the piece has a thickness of 125 mm. Presently each square meter of the piece would have a self-weight of 0.125 x 1 x 2400 = 300 kg which is comparable to 3 kN. Presently, accept Finishing burden to be 1 kN per meter and superimposed live burden to be 2 kN per meter. In this way, we can ascertain the section burden to associate with 6 to 7 kN per square meter. 

Factor of Safety 


At last, in the wake of computing the whole burden on a segment, kindly remember to include the factor of security. For IS 456:2000, the factor of wellbeing is 1.5.

Source: https://engineeringdiscoveries.com/2019/07/12/load-calculation-on-column-beam-and-slab/
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