To Model a RC residential structure using TSD

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

AIM:- To setup model for RC building design and based on the cover parameters

INTRODUCTION:- Setting must be done to specify the design code, design settings which includes reinforcement details and other criteria for each structural members and therefore set analysis.

PROCEDURE:-

• Open the TEKLA STRUCTURAL DESIGNER for design of RCC structure. 
• Click NEW to open new file and save it to new name.
• Go to SETTINGS under HOME tab. Select structural defaults to set the nomial cover for each member in contact with ground

• Set the design code to Indian standard.

 

• In Design Settings, select beam under concrete to set reinforcement.

• Set reinforcement Detailing

 

• Set top and bottom longitudinal bar pattern.

 

• Set links, ie, stirups details

• Select column under concrete to set reinforcement details.

• Set reinforcement details for wall

• Set reinforcement details for slab on beam

• Set reinforcement details for flat slab.

• Set reinforcement and size details for isolated foundation.

    

RESULT:-  Therefore, model setup for RCC building design is completed.

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

 AIM:- To model grids as per the attachment 2, 2.1, 2.2

INTRODUCTION:- Grid line helps in easy arrangement of beams and columns for the structural member based on the attachment given.

PROCEDURE:- 

•  Under MODEL, select Construction Level 

• Select grid line under model to model grid line
• Pick the first and second point on the scene view to add the grid line.

• Refer the plan drawing of the building to model the rest the grid line.
• Given, the brickwall thickness 225mm.
• Therefore, grid line distance for the office room should be (0.225/2)+ 4.5 = 4.6125m
• Similarly, construct parallel grid line for rest of the rooms.

• Construct perpendicular line by picking grid line 6 as referance line.

• Model grid line parallel to the perpendicular grid line.

RESULT:-  Hence, modelled grid line as per the attachment.

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

AIM:- To study the layout and write a summary for general arrangement of the structure

INTRODUCTION:- Column are provided to carry the beam load in which beam load includes self weight and slab load distribution. Column should safely transfer the load to foundation.

PROCEDURE:-

Ground Floor

• Plinth beam must be provided beneath the ground level.
• Plinth beam must be provided at 1.5m from base.
• Column must be provided from base to roof level as per the attachment 2.1 with column position.
• The structure is an industrial building with rectangle size of 11.15m x 19.675m .
• Given, The brickwall thickness is 225mm.
• Ground floor provides provision for equipment rooms, office,etc directly to the ground.

First Floor

• Provide 3m height for the ground floor to first floor.
• In first floor, cantilever beams are provided for corridor portion with 2.62m width at both ends.
• The cantilever beam ends are supports by the simply supported beam.
• Slabs are provided in both 1 way and 2 way direction based on its ly/lx ratio.
• Slab loads are equally distributed to beams which are then transferred to column and then to foundation.

Roof Floor

• Provide 3m height for the first floor to roof floor.
• Slabs are provided in both 1 way and 2 way direction based on its ly/lx ratio.

RESULT:- Hence, layout of the structure is studied and summary of the general arrangement is noted.

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

AIM:- To model RCC columns, beams and slabs as per your general arrangement

INTRODUCTION:- Tekla structural Design is used for modelling of RC structures like beam, column and slabs by specifying its property sets and reinforcement details.

PROCEDURE:-

Column

• Go to MANAGE PROPERTY SETS under HOME.
• Set property of RC column C1 with concrete grade M30 and size 400mm x400mm as shown below. 
• Provide a nominal cover of 40 mm for RC column

• Create 3m parallel construction line from grid line 1 to provide column for staircase.

• Select concrete column from Model tab.
• Under property window, select C1 from base level to roof level.
• Pick the point of intersection to create the concrete column.

Beam

• Go to MANAGE PROPERTY SETS under HOME.
• Set property of RC beam B1 with concrete grade M30 and size 225mm x500mm since the brickwall thickness is 225mm. 
• Provide a nominal cover of 25 mm for RC beam

• In ground floor, select concrete beam from Model tab.
• Under property window, select B1 continuous.
• Pick the point 1 to 5 to create the concrete beam.

• Copy this beam to grid line B and A.
• Similarly, provide B1 beam along grid line 1,2,3,4, and 6.
• Therefore, no error after validation.

• Go to first floor in scene view, create parallel construction line at a distance 2.62m from grid line A and C for the corrider provision as shown in the attachment 2.1.

• In first floor, select concrete beam from Model tab.
• Under property window, select B1 continuous.
• Pick the point 1 to 5 to create the concrete beam.
• Copy this beam to grid line B and A.
• Similarly, provide B1 beam along grid line 1,2,3,4, and 6.

• For corrider, cantilever beams are to be provided.
• Go to manage property sets to create property for cantilever beam.

• Select concrete beam from model tab
• Select cantilever beam from property window, pick the first point to create cantilever beam.

• Copy this cantilever beam to rest of the column ends as shown below for the corridor.

• Copy the B1 beam from grid line C and provide it at the cantilever ends.

• Delete the beam from grid line B for the provision of staircase as shown in the first floor plan.
• Therefore, beam position in the first floor is shown below.

• Check in structural 3D view.

• In roof floor, select concrete beam from Model tab.
• Under property window, select B1 continuous.
• Pick the point 1 to 5 to create the concrete beam.
• Copy this beam to grid line B and A.
• Similarly, provide B1 beam along grid line 1,2,3,4, and 6.

Slab on Beam

• Go to manage property sets to set property for 2 way slab as shown below.

 

• Go to first floor in scene view, select slab on beams
• Change to S1 in property window.

• Go to manage property sets to set property for 1 way slab as shown below since lx/ly >2.
• Provide reinforcement as provided in 2 way slab.

 

• Provide 1way slab for rest of the slab area. Avoid the staircase area.

 

• Go to roof floor in scene view, select slab on beams from ribbon window.
• Change to S1 in property window for 2 way slab.
• Also, provide S2 for 2 way slab for region where lx/ly >2.

• Check in structural 3D view.

RESULT:- Hence, modelling of RCC columns, beams and slabs as per your general arrangement is completed.