The document details the modeling and design process for an elevated INTZ tank using STAAD PRO software. It includes steps for modeling, applying load cases, performing analyses, and final design considerations such as material properties and reinforcement specifications. Various commands and tools within the software are referenced to aid in creating precise structural diagrams and load assessments.

1. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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ELEVATED INTZ TANK
MODELING , LOADINGS , ANALYSIS AND DESIGN OF ELEVATED INTZ TANK
Modeling:
1. Space-file name : RC NTZ TANK
2. Unit-Met, Kn
3. Add beam
4. Finish
5. View from +Z –X_Y Plane .Snap Node/Beam
6. Use Circular Repeat tool.

2. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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Snap Node/Beam

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Insert node- vertical side into 2 and to Slope by 3.
Use circular repeat tool to model the tank.
p

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Select all beams and choose Create Infill Plate to Infill plate tool and fill with
PLATE ELEMENTS. (Plate member)
Structure Diagrams… and click to Fill Plates
Ctrl+Z ….Undo ….. Circular Repeat

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Circular Repeat
Create Infill Plate Label tool….
Structure Diagrams… Fill Plates
Select Beam Cursor and select beams and click fill plates to view the plates.
General menu- property- 200 mm for plate and provide Fixed Support to the
bottom 2 nodes as shown.

6. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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Load case 1 : Water Pressure-General - Add.. Plate Loads | Hydrostatic - Select
Plate(s).

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W1 = -20Kn/m2 and W2 = 0 Kn/m2.
Select Hydrostatic and enter ,W1 = -40 Kn/m2 and W2 = -20 Kn/m2
W1 = -50 Kn/m2 and W2 = -4 0Kn/m2

8. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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Select Plate Cursor and select the plates . Use Circular Repeat as shown.

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Local Z --- Ctrl+Z ……. Circular Repeat …
Command-
Analysis/Print .. Print Option .No Print
Choose Analyze | Run Analysis…
Choose Post-processing - Plate | Contour …choose Max Absolute
View From +Y … Plate Cursor

10. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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Use Cut Section … Select to View ......... View Highlighted Only
View From +Z … Plate Cursor

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Cut Section … Select to View | View Highlighted Only
Cut Section … Show All Surface Element and Plate Element
Modeling …. View From +Z
Cut Section …Select to View | View Highlighted Only
View From +Y…… ……..

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Define Mesh Region ……. Div. = 1

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Support …………. Fixed Support
General | Property ……. Thickness… Plate/Surface Thickness …0.3 m,
Material = Concrete … Add … Close
Assign To View …. Assign
Load case 2 : PLATE LOAD … Add.. .Selfweight

14. STAADPRO ELEVATED INTZ TANK MODELING AND DESIGNING
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Add.. Plate Loads | Pressure on Full Plate …Add … Close …Assign To View
Analyze | Run Analysis… Run Analysis
Post-processing case2 : PLATE LOAD
Plate | Contour

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Modeling :
1 … (X=2, Y=20, Z=0) (X=0, Y=0, Z=0) …. (Circular Repeat)
Modeling …. Geometry | Beam
View From +Z …… Snap Node/Beam

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Snap Node/Beam
Snap Node/Beam …. (X=2, Y=20) … (X=0, Y=0)
Property … Define… Rectangle : YD = 1.0 m, ZD = 0.5 m, Material = Concrete
Insert Node

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Circular Repeat
3D Rendering

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Link beam property …. YD = 0.4 m, ZD = 0.4 m …Beam

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Support …. Edit List
Load case 3 : Design Load …… Repeat Load … L2 : PLATE LOAD … 1.4
Commands | Loading | Load List… L3 : DESIGN LOAD
Design | Concrete … Define Parameters…
FC : Compressive strength of concrete = 25 N/m2
• FYMAIN : Yield strength of steel = 415 N/m2
• MAXMAIN : Max. main reinforcement bar = 25
• TRACK = (2)

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View From +Z
Commands… DESIGN COLUMN
Analyze | Run Analysis…

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