To Analysis and Design of Steel Structures using TSD

AIM: Summarize your study for the bending moment, shear force and deflection diagrams for the elemen model
PROCEDURE
• Initally open the Tekla file you saved prviously

• After opening the file->We ste the Seismic data in the structure

• To set->go to load panel->Under seismic load go to Seismic wizard

• Select the code spectra->Next

• A new tab opens-> Check the base information of the model

• Check seismic zone and site-> Click Next

• Now set the structure irregularities->If any plane or cliff give

• or else click next

• on the Fundamental period->select structure as RC steel composite .

Click on Next

• In seismic force resisting system-select the type as Moment frame structure->steel building with with OMRF

• In Dir2 select the braced system ->building with SBF and concentric braces

On the next tab->exclude the service load and select all others

• click next

• Select the seismic combination ->click next

• Click om finish

• Now go to load combination->click on generate

• Click next and select the load combination and finish.

• Now before starting the analysis we check the factors

• Go to Analyse tab->Go to settings

• under the modification factors tab->select steel

• check for tall the factors to be 1.0

• you can modify the factors if needed

• Now to analyse the strcutre->click on Ist order analysis

• After select the combination and cases you want to analyze

• click on Ok

• Aftfter the analysis is done ->go to result view from the bottom right corner .

• On the result panel ->Go to result->moment Major-> Select the axis

• It'll show the results of the bending Moment Major

• These are the loads of Effective Seismic weight

• SHear major

• Axial force

• Now check for the frames members indvidually .

For now open frame A section

• The frame A above->The beams shown in red has failed so we try to check the member

• select the beam->right Click->Check member

•  Click on check member->a list is shown here the crictal failure of beam in moment major .

• So we try changing the beam section to MB400 (Previously MB300)

• After trial and errors we rectify the error by giving the section of MB500 to the beams

• similarly we check the other members and change the sections or areas accordingly

• Similary do it for all other members and check for the errors

AIM:Based on the analysis design the members and outline the thought process in selecting the member sizes along with the foundation design

PROCEDURE

• Now for the design of the foundation under the columns .

• Go to the foundation tab

• Open the base level -> Under the foundation panel click on pade base foundation

• Select the pad base foundation-> Click on the column under which you want the foundation to be placed.

• Select the column ->Right clickand check members ->This foundation is failing under bending capacity

• So we try to increase the area of steel provided

• Providing 25mm dia bars with 300mm spacing and increasing the depths

• The dimension of foundation is 2500mm both in X&Y direction and depth 850mm

• we again check the foundation and the errors are removed

• Similaryly we provide foundation to all other columns

• Select the foundation ->copy and apply to all other columns.

. Check the foundation for the errors

• All foundation are check there are no shown errors

RESULT:

• Successfully desgined the foundation and the beams

• removed the errors of the section which were failing under the critical loads