View source for Osdag/C3/Specifying-design-preferences-in-Osdag/English

'''Title of the script:''' Specifying design preferences in Osdag

'''Author''': Anandajith TS

'''Keywords:''' '''Osdag, member design, connection design, steel design optimisation, Tension member, Design Preference, bolt design, detailing, gusset plate, video tutorial'''


{| border=1
|- 
|| '''Visual Cue'''
|| Narration
|- 
|| '''Slide'''

'''Title Slide'''
|| Welcome to the Spoken Tutorial on '''Specifying design preferences in Osdag.'''
|- 
|| '''Slide'''

'''Learning Objectives'''
|| In this tutorial, we will learn to,
* Design preferences in '''Osdag'''
* Define special preferences
* Perform design using special preferences
* Compare the design results


|- 
|| '''Slide'''

'''System Requirements'''
|| To record this tutorial, I am using
* '''Windows 11 OS''', and
* '''Osdag v2021.02.a.a12f'''


|- 
|| '''Slide'''

'''Pre-requisites'''






[https://osdag.fossee.in/ https://spoken-tutorial.org]
|| To follow this tutorial you should have,
* '''Osdag''' installed on your system
* Basic knowledge of '''structural steel design'''





The prerequisite''' '''tutorials are available on this website.

|- 
|| '''Slide'''

'''Code Files'''
|| 

* The files used in this tutorial are available in the '''Code Files''' link

* Please download and extract them

* Make a copy and then use them while practising

|- 
|| Only narration
|| The user interface of '''Osdag''' for '''Ubuntu Linux''', and for '''Windows '''is the same.


Annotations are added to the tutorial if there are any differences.
|-
|| Point to the '''home page''' of the '''Tension Member Design - Bolted to End Gusset module'''
|| Switch to the '''home page''' of the '''Tension Member Design - Bolted to End Gusset module.'''
|-
|| Point toward the '''Input Dock''' fields 
|| I have loaded the '''Preference hyphen sample hyphen design dot OSI '''file.
|-
|| Only narration
|| Please pause the tutorial and perform the same steps on your computer.
|-
|| Click on the '''Design '''button
|| Click on the '''Design '''button below to perform the design.
|-
|| Only narration
|| '''Osdag '''carries out the design.
|-
|| Point toward the '''INFO '''message in the log message window
|| The design is complete and '''safe'''.
|-
|| Point toward the '''CAD window''' and the '''Output Dock'''
|| The '''CAD window''' becomes active, and the '''Output Dock''' is populated with results.
|-
|| Only narration
|| Let us specify some design preferences and check for updated results.
|-
|| '''Slide'''

'''Sample Design Example'''
|| Perform a '''design check''' by adopting the given '''design preferences''':


'''Connector:'''
* '''Material: E300 (Fe 440)'''





'''Bolt:'''
* '''Type: Pre-tensioned'''
* '''Hole Type: Over-sized'''
* '''Slip factor: 0.48'''




|-
|| '''Slide'''

'''Sample Design Example'''
|| '''Detailing:'''
* '''Edge Preparation Method: machine-flame cut'''
* '''Environment: Corrosive'''





'''Design:'''
* '''Limit State Design'''


|-
|| Switch back to '''Tension Member Design - Bolted to End Gusset module '''homepage
|| Performing design with above preferences may change the design results completely.
|-
|| Only narration
|| '''Design Preference''' is an advanced feature.

It should be used after due consideration.
|-
|| Click on the '''Spacing Details button.'''
|| Click the '''Spacing Details button '''under '''End Connection '''in the '''Output Dock'''.
|-
|| Point toward the '''Spacing Details '''window
|| The '''Spacing Details '''window opens.
|-
|| Point toward '''Bolt Rows (nos)'''
|| Notice that the number of '''Bolt Rows''' is 2 on each '''gusset plate'''. 
|-
|| Point toward '''Bolt Columns (nos)'''
|| And the number of '''Bolt Columns''' is 16.
|-
|| Only narration
|| This means that there are 32 bolts on each '''gusset plate '''or 16 bolts per '''Angle'''.
|-
|| Only narration
|| Let us see if the bolt configuration changes after designing with special preferences.
|-
|| Click on the close button
|| Click on the close button at the top right corner to exit the window.
|-
|| Point toward '''Capacity (kN)''' under '''Bolt Details''' output
|| Also, notice the''' bolt capacity''' for the given design.


It is '''18.78 kN''' as of now.
|-
|| Only narration
|| Let us see if the '''bolt capacity''' changes after designing with special preferences.
|-
|| Only narration
|| Let us now define the preferences for our design.
|-
|| Click on the '''Edit '''menu in the menu bar
|| Click on the '''Edit '''menu in the menu bar and
|-
|| Select '''Design Preferences '''
|| Select '''Design Preferences '''from the list.
|-
|| Point toward the '''Design Preference''' window
|| The '''Design Preference''' window will open.
|-
|| Only narration
|| The '''Design Preference''' window is categorised into various sections.
|-
|| Click on '''Angle Section'''
|| Typically, these sections include;
* Details of the selected member.


|-
|| Click on '''Connector'''
|| 
* Connector preferences.


|-
|| Click on '''Bolt'''
|| 
* Bolt preferences.


|-
|| Click on '''Detailing'''
||
* Detailing preferences, and


|-
|| Click on '''Design'''
|| 
* The design method preference.


|-
|| Only narration
|| Let's explore the sections and define the corresponding preferences individually.
|-
|| Click on the '''Angle Section''' tab
|| Click on the '''Angle Section''' tab to view the selected member details.
|-
|| Point toward '''Designation''', '''Section Profile''' and '''Conn_Location'''
|| Here, section details like '''designation '''and the profile are shown.
|-
|| Point toward '''Mechanical Properties'''
|| Below section details, we see '''Mechanical Properties.'''
|-
|| Point to the properties.
|| These properties get populated based on inputs in the '''Input Dock '''and the codal provisions
|-
|| Point toward '''Dimensions'''
|| Dimensions of the selected section are listed under the '''Dimensions''' section.
|-
|| Point to the dimensions.
|| These dimensions are fetched from the '''Indian Standard, IS 808''' database of '''Osdag'''
|-
|| Point toward the section image
|| A detailed and representative '''cross-section''' drawing of the selected section is shown.
|-
|| point to the 2D drawing.
|| This 2D drawing is typical and has standard notations marked over it for better visualisation.
|-
|| Point toward '''Section Properties'''
|| The sectional properties corresponding to the selected section are listed under '''Section Properties.'''
|-
|| Point toward '''Section Properties '''fields
|| These properties are also fetched from the '''Osdag '''database at run-time.
|-
|| Only narration
|| For a user-defined section not present in the database, properties are calculated by '''Osdag '''internally.
|-
|| Only narration
|| The properties of this user-defined section are inserted into the database for reuse.
|-
|| Only narration
|| Users can add single or multiple custom sections to the '''Osdag '''database and use it in design.
|-
|| Point toward '''Add '''button
|| The '''Add '''button at the bottom allows to Add a single custom section to the database.
|-
|| Point toward the '''Download xlsx file, '''and '''Import xlsx file '''button
||For adding multiple sections at once using an excel sheet, use the '''Download '''and '''Import xlsx '''buttons.
|-
|| Only narration
|| We will explore this feature in another tutorial.
|-
|| Point toward the '''Clear '''button
|| The '''Clear '''button will clear the user-defined inputs in the Design Preference window.
|-
|| Click on the '''Connector '''tab
|| Let us move to the '''Connector '''tab.
|-
|| Point toward the '''Inputs '''fields
|| Here, we see the '''Material '''properties of the '''connector '''material.
|-
|| Point toward the '''Material drop-down menu'''
|| '''E 250 (Fe 410 W)A''' is selected by default. 
|-
|| Point toward the '''Ultimate Strength''' and '''Yield Strength''' field
|| The corresponding values of the ultimate and yield strengths are shown below.
|-
|| Point to the material grade.
|| We need to change the material grade to '''E300'''.
|-
|| Click on the '''Material drop-down menu '''and select '''E300 (Fe 440)''' from the list
|| Click on the '''Material drop-down menu '''and select '''E300 (Fe 440)''' from the list.
|-
|| Point toward the '''Ultimate Strength''' and '''Yield Strength''' field
|| Notice the values of the ultimate and yield strength are now updated automatically.
|-
|| Click on the '''Bolt '''tab
|| Let us now move to the '''Bolt '''tab.
|-
|| Point toward '''Type '''and '''Hole Type'''
|| The default bolt type is '''Pre-tensioned,''' and the '''Hole Type''' is '''Standard'''.
|-
|| Point to the Hole type.
|| The desired Hole Type is '''Over-sized'''.
|- 
|| Click on the '''Hole Type drop-down menu '''and select '''Over-sized''' from the list
|| Click on the '''Hole Type drop-down menu '''and select '''Over-sized''' from the list.
|-
|| Point to the slip factor value.
|| Now, let us change the '''Slip factor''' to '''0.48.'''
|- 
|| Click on the '''Slip factor drop-down menu, '''scroll and select '''0.48''' from the list
|| Click on the '''Slip factor drop-down menu'''


Scroll down the list and select '''0.48'''.
|-
|| Point toward the '''Description text box'''
|| A description of the slip factor values is shown in the '''Description text box.'''
|-
|| Highlight '''IS 800 Table 20'''
|| The description is referred from the '''Indian Standard, IS 800, Table 20'''.
|-
|| Highlight '''xi) Sand blasted surface 0.48''' in the '''Description text box'''
|| We see, for a slip factor of 0.48, the surface treatment is of '''Sand blasted''' type.
|-
|| Point to the bolt preferences.
|| We have defined preferences for the '''Bolt'''.
|-
|| Click on the '''Detailing '''tab
|| Let us now move to the '''Detailing '''tab.
|- 
|| Click on the '''Edge Preparation Method drop-down menu '''and select '''machine-flame cut''' from the list
|| Click on the '''Edge Preparation Method drop-down menu '''and select '''machine-flame cut''' from the list.
|- 
|| Point toward the '''Gap '''textbox
|| The '''Gap '''preference is not applicable here. We will leave it as default.
|-
|| Only narration
|| In our design, the members are exposed to corrosive influences.


We need to incorporate this condition in the design.
|- 
|| Point toward the '''Are the Members Exposed to Corrosive Influences drop-down''' menu
|| Click on the '''Corrosive Influences drop-down''' menu and select '''Yes'''.
|-
|| Point toward the '''Description text box'''
|| The '''Description text box '''shows a description with reference to the corresponding '''IS 800 clauses'''
|-
|| Only narration
|| Users may refer to this description for a better understanding of these design clauses.
|-
|| Click on the '''Design '''tab
|| Let us now move to the '''Design '''tab.
|- 
|| Point toward the '''Design Method''' '''drop-down''' menu
|| We see the default '''Design Method '''is '''Limit State Design.'''
|-
|| Only narration
|| Osdag performs design using the '''Limit State Method.'''
|-
|| Click on the '''Design Method drop-down''' menu
|| Other methods of design are not available with this version.
|-
|| Only narration
|| We have defined all the preferences. 
We are now ready to perform the design.
|-
|| Point toward the '''Defaults '''button
|| The '''Defaults '''button below sets the preferences to the default value.

Do not press this button after defining the preferences.
|-
|| Point toward the '''Save '''button
|| The '''Save '''button saves the defined preferences.
|-
|| Click on the '''Save '''button
|| Click on the '''Save '''button to save and exit the '''Design Preferences''' window.
|-
|| Only narration
|| We are ready to perform the design with saved preferences.
|- 
|| Click on the Design button
|| Click on the '''Design '''button again.
|-
|| Only narration
|| Osdag carries out the design.
|-
|| Only narration
|| The design process might take some time to complete.
|-
|| Point toward the '''INFO '''message in the log message window
|| The design is completed successfully.
|-
|| Only narration
|| Now, let us check if the design results have changed from that recorded previously
|-
|| Click on the '''Spacing Details button.'''
|| Click on the '''Spacing Details button '''in the '''Output Dock '''under '''End Connection'''.
|-
|| Point toward '''Bolt Rows (nos)'''
|| The number of '''Bolt Rows''' is 2 on each '''gusset plate'''.
|-
|| Only narration
|| This has not changed.
|-
|| Point toward '''Bolt Columns (nos)'''
|| The number of '''Bolt Columns''' is now 12.
|-
|| Only narration
|| This has been reduced from 16 to 12.
|-
|| Only narration
|| This means that now there are 24 bolts on each '''gusset plate '''or 12 bolts per '''Angle'''.
|-
|| Only narration
|| There is a change in the total number of bolts after designing with special preferences.
|-
|| Click on the close button
|| Click on the close button at the top right corner to exit the window.
|-
|| Point toward '''Capacity (kN)''' under '''Bolt Details''' output
|| Also, notice the''' bolt capacity''' has changed to 26.98 '''kN'''.
|-
|| Only narration
|| Users can refer to other design outputs and compare the results similarly.
|- 
|| Only narration
|| This brings us to the end of this tutorial.


Let us summarise.
|- 
|| '''Slide: Summary'''



|| In this tutorial, we have:
* Learnt design preferences in '''Osdag'''
* Defined special preferences
* Performed design using special preferences
* Compared the design results


|-
|| '''Slide: Assignment'''
|| As an '''assignment''', do the following


* Go to the '''Tension Member Design - Welded to End Gusset module'''
* Use the same input values as this tutorial wherever applicable
* Explore and define various '''design preferences'''
* Compare the results and make conclusions


|-
|| '''Slide: '''About Spoken Tutorial Project
|| The video at the following link summarizes the Spoken Tutorial Project.


Please download and watch it.
|-
|| '''Slide:'''Spoken Tutorial Workshops
|| The Spoken Tutorial Project team conducts workshops and gives certificates.


For more details, please write to us.
|-
|| '''Slide:'''Answers for THIS Spoken Tutorial
|| Please post your timed queries in this forum.
|-
|| '''Slide: '''FOSSEE Forum
|| For any general or technical questions on Osdag, visit the FOSSEE forum and post your question
|-
|| '''Slide: '''Sample Design Examples




[https://osdag.fossee.in/resources/sample-design https://osdag.fossee.in/resources/sample-design]
||
* The '''Osdag '''team at FOSSEE creates '''sample design examples''' for self-learning
* These examples can be practiced using the '''Osdag''' '''software'''
*For more details, please visit this link 
[https://osdag.fossee.in/resources/sample-design https://osdag.fossee.in/resources/sample-design]


|-
|| '''Slide: '''Acknowledgement
|| The '''Spoken''' '''Tutorial''' project was established by the '''Ministry of Education''', Government of India
|-
|| '''Slide: '''Thank you
|| This is Anandajith TS, FOSSEE IIT Bombay signing off


Thanks for joining
|-
|}