To calculate wind load for industrial steel structures and to apply it by using TSD

1)

Aim - Generate manual wind loading in the design report based IS code as per the following input

Basic wind speed = 39 m/s

Terrain category = 2

Procedure -

First calculate load combination

Result - Calculations are done for the wall panel

Step-1

Application of wind load on Model

First Open the last week file of Tekla

Then Click on Load cases option

As we are manually applying the wind loads create the new wind load cases by clicking on add option and rename it

Step-2

For wall section

Apply the wind load for 1st Case i.e Wind + Y and +Cpi

The faces A, B, C and D corresponds to frame 1,4, A and D in model .

The negative value of load shows that load is acting away from building and positive value shows it acts towards the building.

A ) Open Frame 1 and apply load 0.266 Kn/m^2

Second case Wind +Y -Cpi

Open Frame 1 and apply load 1.596 Kn/m^2

Third case Wind -Y +Cpi

Open Frame 4 and apply load -0.9975 Kn/m^2

Fourth case Wind -Y -Cpi

Open Frame 4 and apply load 0.3325 Kn/m^2

Fifth case Wind +X +Cpi

Open Frame A and apply load -1.463 Kn/m^2

Sixth case Wind +X -Cpi

Open Frame A and apply load -0.133 Kn/m^2

Seventh case Wind -X +Cpi

Open Frame D and apply load -1.463 Kn/m^2

Eighth case Wind -X -Cpi

Open Frame D and apply load -0.133 Kn/m^2

Step-3

For Roof section

First We will Consider EF side

For, Wind + Y + Cpi

apply load -1.596 Kn/m^2

For, Wind + Y - Cpi

apply load -0.266 Kn/m^2

Now We will Consider GH side

For, Wind - Y + Cpi

apply load -1.463 Kn/m^2

For, Wind - Y - Cpi

Apply load -0.133 Kn/m^2

We will consider EG side

For, Wind + X + Cpi

Apply load -1.82 Kn/m^2

For, Wind + X - Cpi

Apply load -0.419 Kn/m^2

We will consider FH side

For, Wind - X + Cpi

Apply load -1.54 Kn/m^2

For, Wind - X - Cpi

Apply load -0.140 Kn/m^2

Question- 3. On a separate model generate wind loading using wind wizard.

Ans=

• Delete previous wind loads
• Now click wind wizard in load tab

• Click on worst case data and click next
• Set height as 16.88m, Type industrial and wind speed 39m/s and click next
• Set terrain category as open terrain scattered obstruction, fetch a distance as 10m and click next
• Click next for results and direction
• Click on load cases and add wind loads as shown below

Wind loads are generated through wind wizard

Results -

i) Wind loads and roof loads is calculated based on IS 875 Part III.

ii) The wind load and roof load applied to the steel structure.

iii) A separate model is created and wind load is calculated using the Tekla software’s wind wizard.

Conclusion:-

All the three tasks has been accomplished successfully and Excel file of Wind load coefficient calculaion and Tekla file for Roof panel and wall panel load assignment.