To Model a RC residential structure using TSD

Questions:-

1. Setup model for RC building design and based on following parameters for cover

MEMBERS	IN CONTACT WITH GROUND	ABOVE GROUND
Column	50mm	40mm
Beam	30mm	25mm
Slab	30mm	25mm
Pilecap	75mm
Foundation	50mm

2. Model grids as per the attachment 2,2.1 and 2.2

3. Study the layout and write a summary for general arrangement of the structure

4. Model RC columns, beams and slabs as per your general arrangement

Ans=

AIM:- To model RC building as per given information in TEKLA STRUCTURAL DESIGNER.

INTRODUCTION:-

I have modeled the building (G+1) Where I assumed the followings-

• Thickness of walls is 225 mm
• Slab thickness is taken as 125 mm
• Size of concrete column taken as 400x400 mm
• Size of concrete beam taken as 400x600 mm
• Size of stringer beam taken as 250x500 mm

Apart from that I have used concrete covers as per pre-mentioned data.

PROCEDURE:-

Step-1-

• Open new project in tekla structures
• Open settings and change settings to indian code
• 
  
  
• Set beam details in "Design setting" as :
• 1. Reinforcement details
  • Minimum bar size as 16mm and Maximum bar size as 25mm, Minimum side bar=12mm
  • Minimum top steel clear spacing =50mm
  • Minimum bottom steel clear spacing =50mm
  • Maximum tension steel spacing = 200mm
  • Maximum compression steel spacing = 200mm
  • Use single bars when beam width <=150
• 
  
  
• 2. In Detailing settings of beam tick mark "Extend top span bars to end support" and select symmentrical in links
• 
• 3. In Top Longitudinal bar set as "Standard top 1"
• 
• In stirrup setup
  
  • Minimum bar size 10mm
  • Maximum bar size 12mm
  • Minimum spacing 100mm
  • Maximum spaing 250mm
  • Spacing increment 25mm
  • Maximum link leg spacing across beam 250mm
• 
• Now set "Column settings"
• 1. Reinforcement details
• In vertical bars :
  • Minimum bar size = 16mm
  • Maximum bar size = 25mm
  • Minimum clear spacing = 50mm
  • Maximum centre spacing = 200mm
  • Minimum reinforcement = 0.004
  • Maximum reinforcement ratio = 0.040
• Link bars
  • Minimum bar size = 10mm
  • Maximum bar size = 12mm
  • Minimum clear spacing = 100mm
  • Maximum clear spacing = 250mm
  • Spacing increment = 25mm
• 
• 2. In Detailing settings check longitudinal bars and type of stirrups
• 
• 
• 
• Similarly set wall reinforcement details as :
• 1. Reinforcement details
• In vertical bars :
  • Minimum bar size = 12mm
  • Maximum bar size = 16mm
  • Minimum clear spacing = 50mm
  • Maximum centre spacing = 200mm
  • Minimum reinforcement = 0.004
  • Maximum reinforcement ratio = 0.040
• Vertical bars end zone
  • Minimum bar size = 12mm
  • Maximum bar size = 16 mm
  • Minimum reinforcement ratio = 0.008
  • Maximum reinforcement ratio = 0.040
• Horizontal bars
  • Minimum bar size =10
  • Minimum reinforcement ratio = 0.002
• Link/Horizontal bars
  • Minimum clear spacing = 100mm
  • Maximum centre spacing = 250mm
  • Spacing increment = 25mm
• Link/Confinement bars
  • Minimum bar size = 10mm
  • Maximum bar size = 12mm
• Confinement bars in end zone
  • Minimum bar size = 10mm
  • Maximum bar size = 12mm
• 
• Change slab settings as :
• Maximum principle bar spacing distance x slab depth = 150x2
• Maximum secondary bar spacing distance x slab depth = 250x3
• 
• Check structure defaults
• 
• Set Font sizes to 30
• 

Step-2-

• Set construction levels which contains ground floor, first floor and roof with spacing 3.6m
• 
  
  
• Foundation settings
• 

Step-3-

• Now draw grids lines according to the dimensions given in plan :
• 
  
  

Step-4-

• Set column, beam properties
• Column = 400x400 size with M30 grade
• 
• Beam = 225x400mm and M30 grade
• 
• 
• Stringer beam = 200x300mm with M30 grade
• 
• 

Step-5-

• Place columns (From base to roof) and beams in Ground floor and First floor
• 
• Ground floor
• 
• First floor
• 
• Draw beams in corridor First floor and make those beams as cantilever beam by changing properties. (Right click on that beam and select Edit option from that list.
• 
• 
• Draw beams in roof level
• 

Step-6-

• Now draw stringer beam for staircase
• To add staircase
  • Select beams, columns around staircase
  • Right click on members and select add to substructure
  • 
  • 
  • 
  • Open substructure from properties panel
  • 
  • Click on sloped plane and draw stringer beams for the staircase
  • 
  • 
• Step-7-
  • Draw slabs on groundfloor, first floor, roof floor with 125mm thickness and staircase slab 175mm thickness
  • Ground floor
  • 
  • First floor
• 
• Roof floor
• 

Step-8-

For Staircase slab create slab property

• 
• 
• Validate the model

RESULTS:-

Conclusion:-

I have accomplished the modeling task as per provided data. Also, I have attached the modeled Tekla file for this challenge.