Week 8 Challenge

AIM

To calculate the Dead load, live load, and wind load at manual with a reference of Indian standard code and apply to the model by using TEKLA Software.

PROCEDURE

• To add the load cases of all categories.
• To calculate the Dead load calculation of Finishes, Brick wall, services.
• To add the Load at a model with reference of the given layout.

Calculation of Dead Load

• Finishes Loading ( 50mm thick )

= 0.05 x 24

= 1.2 KN/m^2.

• Brick wall load with cement plaster thickness.

Unit weight of brick wall = 20KN/m^3

@ Ground floor to First Floor ( 3.5m height )

• Exterior wall ( 230 mm thickness )

= 0.230 x 20 x 3.5

= 16.56 KN/m.

• Interior wall ( 125 mm thickness )

= 0.125 x 20 x 3.5

= 8.75 KN/m.

@ First floor to Top Floor ( 3.5m height )

• Exterior wall ( 230 mm thickness )

= 0.230 x 20 x 3.5

= 16.56 KN/m.

• Interior wall ( 125 mm thickness )

= 0.125 x 20 x 3.5

= 8.75 KN/m.

• Roofing load.

= 1.5 KN/m^2.

• Similarly, to find the live load

Calculation of Live Load

As we taken the value of all areas of Live Load from IS 875, PART-2, TABLE-1.

• Store room = 5 KN/m^2.
• Office room = 3 KN/m^2.
• Rest room = 2 KN/m^2.
• Toilets = 2 KN/m^2.
• Staircase = 5 KN/m^2.
• Equipment Room = 10 KN/m^2.
• Conference Room = 5 KN/m^2.
• Flat roof = 0.75 KN/m^2.
• Workshop = 5 KN/m^2.

To Generate the wind load to a model as per Indian standard code reference Data

• Basic wind speed, Vb = 50 m/s.
• Terrain category = 2
• Class of structure = A
• One horizontal dimension of structure, L = 19.225 m
• Another horizontal dimension of structure, W = 10.70 m
• Height of structure, h = 8.7 m

SOLUTION

• Ratio of wall and Roof Co-efficient

Wall , L/W = 1.79

h/w = 0.81

ROOF, h/w = 0.81

• As per reference of IS 875, Part – 3, Table =5.
• To find external pressure co-efficient(CPe) for walls.

The condition is satisfied in,

• To find Design Wind pressure (Pz).

Pz = 0.6*Vz^2.

• To find Vz,

Vz = Vb * k1 * k2 * k3* k4

Therefore,

As we take value of k1, k2, k3, k4 from IS 875.

K1 = 1 ( under basic wind speed)

K2 = 1.0 ( height upto 10m)

K3 = 1

K4 = 1.15 ( for industrial building )

Vz = 50 *1*1*1*1.15

Vz = 57.5 m/s

Then to find,

Pz = 0.6 * (57.5) ^2

Pz = 1.983 KN/m^2.

• To add the load cases of wind at all direction

• Go to Load > choose patch load > to change the load case property > to change the value of Wind load at direction.
• To add wing load direction X and Y Both positive and negative .

RESULTS

Finally, we calculated the dead load, live load, wing load and also to applied the model successfully.