Sample. mp le. Tank Foundati Foun dation on Design si gn After completing this sample you will be able to: Create geometric data Set foundation group. Modify size of footing and pier. Set load case to foundation /Set load combination. Change Reinforcement of footing and pedestal. Place piles under the footing. Run analysis of footing and pier. Run BOM of foundation. Generate drawing of foundation.
In this Sectio Sectio n Tank Foundation Module Tank Foundation Design Process. Input Tank Foundation Data. Design of Tank Foundation. BOM Take-Off for Tank Foundation. Drawing Generation for Tank Foundation.
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Tank Found ou nda ation ti on Modul od ule e 1. The type of storage tanks normally encountered in refinery, petrochemical and other industrial plants have cylindrical cylindrical shells, essentially flat bottoms, and either cone roofs or float roofs. Tank size may range from 10 to 200 feet in diameter with height from 16 to 56 feet.
AFES Modules
2. Suggested conditions for Tank Foundation Type is as below. < Table 1 >
Tank Foundation Type
Earth Foundations with a Crushed stone Ringwall
Conditions to be considered
The subgrade has adequate bearing capacity and acceptable settlements When the anchorage is not necessary * The most economical type of tank foundation
Advantage
Provides uniform support of the tank bottom by dissipating concentrated loads in a granular pattern Possible the uneven settlement which cause additive effort in the future
Disadvantage
Difficult to construct flat level plane of the bottom of the shell of the tank (⇒ Leveling Ring ※) Catastrophic failure of the bottom is possible if a leak starts and washes out the underlying support Large Diameter Tanks
Application (Design Basis to be applied) app lied)
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< Table 2 >
Tank Foundation Type
Earth Foundations with a Concrete Ringwall
Conditions to be considered
Large tanks, tanks with heavy or tall shells and self-supported roofs impose a substantial load on foundation under shell Can be used where high foundation uplift forced are encountered resulting form internal pressure or wind/seismic loading to provide for anchorage Allows very good leveling of the periphery of the bottom and the shell which is positioned on it
Advantage
Can used in congested areas with space Relatively high cost than the crushed stone ringwall foundation Small Diameter Tanks
Disadvantage Application (Design Basis to be applied) app lied) < Table 3 >
Tank Foundation Type
Reinforced Concrete Slab
Conditions to be considered
Pile supported foundation where soil bearing pressures are very low The reinforced concrete slab is very recommendable when the level of the underground water is high The foundation is very expensive All Tanks
Advantage
Disadvantage Application (Design Basis to be applied) app lied)
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Notes * Regions of low seismicity or in seismic areas where the tank diameter to height ratio is such that there is no uplift of the tank shell or small sloshing effect. The magnitude of lateral forces, overturning moments, and associated hydrodynamic mass be determined to assess their impact on tank shell and foundation design ※ A
concrete leveling ring can be used under the tank shell in the gravel ring wall foundation. This leveling ring is 200mm deep by 300mm wide unreinforced concrete whose primary function is to provide a stable level level base upon which which the fabricator fabricator can build the tank shell wall. Additional advantages of the leveling ring are to distribute concentrated shell loads on to the gravel ring wall and minimize edge settlement under seismic condition
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Tank Found ou nda ation ti on Design si gn Process ro cess Start
Choose Choose Pro ect Create Structure Input Foundation Geometry (=Node Data)
Assign Foundation Module (Foundation Type: Tank1 )
Input Feature Data (=Footing, Pier Shape, Dimension)
Set Footing Bar, Pier Bar
IF Pile Foundation, Array Pile Data
Set Anchor Bolt/Box
Input Equipment Data
Input Load Case/Combination Case/Combination
Structural Calculation sheets
Take Off Bill of Materials
Generate Construction Drawing
END
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Generate 3D Modeling Data
Input Inpu t Tank Tank Foundati Foun dation on Data Making New Structure. command to access the Projects Dialog Dialog Use New/Open Project command Window. The form has options to initialize the model. Initializing the model determines the Design Code and units to be used. Select Design Code and input units to be used before starting a new structure. Steps of making a new structure is as follows. 1.
Choose “New/Open Project” command or click command to generate Tank Foundation.
shortcut
Choose Project that you want to work on in the “ Project Dialog Window”. Ex) For this example, we will use “KCI_MKS” Project.
AFES Main GUI : Open/Select Project
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2. Click “Create New Structure ” command to input ‘Structure Name’ in ‘Toolbar Icon’ Menu. Input ‘Structure Name’ in ‘New Structure Name’ dialog box box then click “New” “New” button.
Add New Structure
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Ad d i n g New Nod No d e Use Geometry Data form to add new node.
1. Click “Geometry Data” command in Toolbar Icon Menu, then you can see “Geometry : Foundation Location Plan (Node Data)” Dialog Window. 2. Input the coordinates of ‘Tank Foundation’, then click “Add” command button. 3. Input ‘Tank Foundation’, and click “Save” Command button. Note) Choose Choose Foundation or Spread Spread Row that you want to edit, edit, then 4. Click “Delete” to delete Node. Ex) Make a Node to locate ‘Tank Foundation’ by clicking ‘Add’. Input coordinates and click “Save” to save data.
Input/modify Geometry Data
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Making Making Group of Isolated Foundation with out Pile. Grouping Foundation is a powerful tool in AFES Program. You
should assign one name for every group of footing. You can assign the same load cases and load combinations to foundations which belongs to the same same group. 1. Click “Assign Foundation Grouping” Icon in Toolbar Icon Menu. The “Structure Group” Dialog Window will display. There are four types of Foundation as shown below.
Type 1
Type 2
Type 3
Type 4
1, 3 Node uses Type 1(Footing : Circle) for Modeling. 2, 4 Nodes use Type 2(Footing : Octagon). 5 Node use Type 3(Circle Ring). 6 Node uses Type 4(Footing : Polygon Ring, Pier Circle Ring Wall).
Steps below is how to specify Type 1 Module for nodes 1 and 3. 2. Click “New” Command Button. 3. Input ‘Group Name’ in ‘Group Name Input Box’, then choose Group Type “Tank 1” in ‘Group Type Input’ box. 4. Choose Non Pile Fdn, or Pile Fdn. based on Condition. 5. Click ‘Same Size’ button to apply same size and reinforced steel data for two different foundations. A standard foundation for input Data can be chosen in Combo Box. Choose Node to assign from ‘Using node list’, click ‘>’ button, and click ‘Save’ to set up Foundation Module.
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Steps below is how to specify Type 2 Module for nodes 2 and 4. The standard shape of Type 2 module is Octagonal and Pier is Circular Ring Wall. Note) Shape of Footing can be be converted in ‘Feature ‘Feature Dialog Window’. Window’. 6. Click ”New” Command Button. Input ‘Group Name’ in ‘Group Name Box’. 7. Choose “Tank_1” for Group Type. Choose Non Pile Fdn, or Pile Fdn based on condition of Soil. 8. Choose Pile Foundation. Choose Node to assign from ‘Using node list’ Click “>” “>” and “Save” to to specify Foundation Module.
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Assign Structure Group
Steps below is how to specify Type 3 Module for 5 Nodes. The standard shape of Type 3 module is Circle Ring Wall. 9. Click ”New” Command Button. Input ‘Group Name’ in ‘Group Name Box’. 10. Choose “Tank_1” for Group Type. 11. Choose ‘Block foundation’, then Soil Condition is automatically chosen to ‘Non Pile Fdn’. This foundation does not support ‘Pile Foundation’. 12. Click ‘Difference Size( Each Foundation)’ button to apply different size and reinforced steel data for two different foundations. 13. Choose Node to assign from from ‘Using node list’ Click “>” and “Save” to specify Foundation Module.
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Assign Structure Group
Steps below is how to specify Type 4 Module for 6 Nodes. The standard shape of Type 4 module is Polygon Ring, and Circle Ring Wall for Pier. Note) Shape of Footing can be be converted in ‘Feature ‘Feature Dialog Window’. Window’. 14. Click ”New” Command Button. Input ‘Group Name’ in ‘Group Name Box’. 15. Choose “Tank_1” for Group Type. 16. Choose ‘Non Pile Fdn’ based on Soil Condition. Foundation Module only supports Soil Foundation. Choose node to assign from ‘Using node list’ Click “>” and “Save” to specify Foundation Foundation Module.
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Assign Structure Group
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Modifyin g size of foot ing and pier. Use the Feature Data form to modify the parameters for the selected
footings and piers. 1. Choose ‘TANK-FDN-01’ in Combo Box. 2. Click “Feature Data (Dimension) ” Icon in ‘Toolbar Icon Menu’, then ‘Feature Input Dialog’ Dialog’ Window will display. display. Steps to specify Type 1 Module is as below. 3. Choose ‘Footing Tab’ in Dialog Box. Choose ‘Soil Name’. 4. Check ‘Allowable Bearing Pressure’ of Soil Foundation using the information of Soil Name, which is input in Bearing Capacity of Soil Tab of “Setting of Constant Dialog”. This is Input Box when you want to design Footing by Element. (You do not need to choose currently.) 5. Choose Footing Shape as a Circle. 6. Input ‘Footing Diameter.’ 7. Input Height of Footing. 8. Input ‘Lean Concrete and Crushed Stone Thickness.’ 9. Input ‘Soil Height’. (Standard of Footing Top: Upward +, Downward -) 10. Input a projecting part of ‘Dimension of Lean Concrete and Crushed Stone’ to horizontal direction. (Standard of Footing Edge.) 11. Click “Save” Command Button to save Data.
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Input Feature : Footing
12. Choose a ‘Pier Tab’ in Dialog Box. 13. Choose Pier Shape as a Circle Ring. 14. Input ‘Pier Diameter.’ 15. Input ‘Wall Thickness.’ 16. Input ‘Pier Height.’ 17. Input ‘Grout.’ 18. Move the Pier with eccentricity by inputting in Offset X/Y Direction. 19. Click “Save” Command Button to save Data.
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Input Feature : Pier
20. Choose ‘TANK-FDN-02’ in Combo Box. 21. Click “ Feature Data (Dimension)” command. ‘Input Dialog’ window will display. Steps to specify Type 2 Module is stated below. Most of the steps are the same as Type 1, but choose Octagon Shape in the ‘Footing Shape’ Combo Box. 22. Click “Save” Command Button to save Data.
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Input Feature : Footing
23. Choose ‘TANK-FDN-03’ in Combo Box. 24. Click “ Feature Data (Dimension)” Icon in ‘Toolbar Icon Menu’, then ‘Feature Input Dialog’ window will display. Steps to specify Type 3 Module is stated below. Most of the steps are the same as Type 1. Click “Save” Command Button to save Data.
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Input Feature : Footing
25. Choose ‘TANK-FDN-04’ in Combo Box. 26. Click “ Feature Data (Dimension)” command. ‘Input Dialog’ window will display. Steps to specify Type 4 Module is stated below. Most of the steps are the same as Type 1, but choose Circle Ring Shape in ‘Footing Shape’ Combo Box. 27. Click “Save” Command Button to save Data.
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Input Feature : Footing
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Modifying reinforcement of footing and pier. Use the Reinforcement Data form to modify the parameters for the
selected footings and piers. 1. Choose Foundation Foundation in ‘Group Combo Combo Box.’ 2. Click “Feature Data (Dimension) ” command. ‘Reinforcement Input Dialog’ window will display. 3. Choose ‘Footing Tab’ in ‘Input Box’. 4. Choose one of the ‘Bar Array Types’ 5. Input reinforcing bar information fitting to Bar Array Type. 1 &3 Bar Types can choose only the information of Bottom reinforcing bar. 6. Choose size of Footing Top & Bottom reinforcing bar. You can choose either Number or Spacing Input. Note) You can can choose ‘Using Bar’ Bar’ in Material and Unit Weight Weight Tab in “Setting of Constant” co mmand. Bar DB that AFES can support are ASTM A615, KS D 3504, BS 4449, SAUDI ARABIAN, ARABIAN, TS 708, ES 272-74, and TIS 2725. You can add BAR DB if you e-mail to
[email protected] to
[email protected],kr ,kr . 7. Input ‘Footing Clear Cover’ in Clear Cover Tab of “Setting of Constant”. It applies to all chosen Foundation. Data input in ”Setting of Constant” will be saved with the same unit of the current project.
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Input Reinforcement Data
8. Choose Pier Tab in ‘Input Box’. Tie Array, Spiral Array (Tie Bar) is only used for PM Diagram Analysis of Pier. It does not apply to ‘Ring Wall Pier’. 9. Choose ‘Top Tie Bar Size’, and input Spacing. The Bar shape of Ring Wall Pier is
The shape of Side Bar is
.
10. Change Data of Pier, and click “Save” Command Button.
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Input Reinforcement Data
11. Input information of reinforcing bar in Pier Tap for ‘Ring Wall Foundation’.
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Input Reinforcement Data
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Placing Placing Circular Pattern Pattern of piles. Use Pile Data command to access Pile Data form. In Pile Data form
you can select either Rectangular Array or Circle Array of pile. In this sample, we will use the Circle Array. 1. Choose Foundation to array Piles in ‘Combo Box’. ’Pile Data’ Icon in ‘Toolbar Icon’ is generated only when choosing ‘Pile Foundation’. Click “Pile Data” Icon in ‘Toolbar Icon Menu’, then ‘Pile Array Form Dialog’ window will display. 2. Choose ‘Pile Name’ in Input Box. 3. Check Allowable Pile Capacity of Pile Foundation using the information of Pile Name, which can be seen in Capacity of Pile Tab of “Setting of Constant” window. 4. Click “View Group Reduction” box after inputting ‘Pile Data’, then you can check the overlap of ‘Pile to Pile’. Default Data is 1.5 x Pile Diameter from Footing Edge, and Pile to Pile is 2.5 x Pile Diameter. Default Data to check overlap can be changed in ‘Design/Auto Design/Set Parameters’ window. 5. Click “Insert” Command button or “Generation (New)” command button to rearrange rearrange Piles.
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Input Pile Data
6. Click ‘Generation (New)’ command button, then the picture below will display. 7. Choose Circle or Rectangular for Pile Array. Below is example of Circular Array. Decide how many Circles are needed to arrange Piles. 8. In this example, we will use 3 Circular Arrays. Diameter of the first Pile Circle is 1200 mm. Arrange 3 piles with 60 degree Start Angle. Diameter of the second Pile Circle is 3000 mm. Arrange 6 piles with 30 degree Start Angle. Diameter of the third Pile Circle is 4000 mm. Arrange 10 piles with 120 degree Start Angle. 9. Choose ‘Base Point’ when you arrange ‘Pile’. (Example of arranging Piles based on Footing Center.) Refer to the figure for more input information.
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10. Input ‘Pile Data’, and click “Save” Command Button.
Input Pile Data
Example below is display result using Pile “Generation (New)” Wizard. Data can be converted by clicking “Save” Command Button after changing X/Y Coordination and Arranged Dia. of Spread Sheet. Piles can be added by clicking “Insert”, “Generation (Add)” Command Command Button. 11. Click “Delete” Command Button to delete piles.
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Input Pile Data
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Placing Anchor Bolt. Use Anchor Bolts/Box Data to access Layout of Anchor Bolts form.
Select from Rectangular or Circular array of anchor bolts if the bolt arrangement is regular. You can also use Add command button in the form to add or edit number number of bolts and location by filling the the x and y coordinate boxes. You can set size, projection, length and spacing of bolt. Note that this this activity is only only useful for drawing drawing presentation purposes. AFES AFES Program does not support design design and analysis of anchor bolts. 1. Choose Foundation Foundation to input “Anchor Bolt/Box Data” in Combo Box. ‘Layout of Anchor Bolts’ Dialog window will appear when clicking “Anchor Bolts/Box Data” Icon in Toolbar Icon Menu. “Layout of Anchor Bolts” is needed only for drawing information. AFES program does not support design of ‘Anchor Bolt’. 2. Choose who is going to supply ‘Anchor Bolt’ in Bolt Data. 3. Choose whether Anchor Bolt & Box uses Unified or Metric Units. Data in ‘Anchor Bolt Size’ depends on un its to be used. Note) Anchor Bolt Type & Size Size can be converted converted by Anchor Bolt Bolt Tab Box of “Setting of Constants”. 4. Input Bolt Size, Projection, and Bolt Length. You do not need to input Bolt Size, Projection, and Length Data if “Using Anchor Box” in Anchor Box is checked. 5. Choose ‘Anchor Bolts Array Type’. (Rectangular, Circle Array) If you choose ‘Circle Array’, Input ‘Start Angle, Number of Anchor Bolt, and Anchor Bolt Circle Diameter’, and click “Draw” Command Button. To change ‘Anchor Bolt’ coordinates, change Spread Sheet and click “Save” Command Button. You can add Anchor Bolt by clicking ”Add” Command button. If you add Anchor Bolt on Circle Array, it will change to ‘Rectangular Array’.
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Input Anchor Bolt/Box Data
To delete all ‘Anchor Bolt Data’ and input new data, choose ‘Anchor Bolts Array Type’, input Data, and click “Draw” Command button.
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Making Equipment Data. Use Equipment Data command to access Equipment Data form.
1. Choose Foundation Foundation to input “Equipment Data” in Combo Box. 2. Click “Equipment Data” Icon in Toolbar Icon, then “Equipment Assign” Dialog window will display. To input specific information of Equipment, you have to input ‘Equipment Name’ & Type. 3. Choose Equipment Node in Spread Sheet, and input ‘Equipment Name’. 4. Click “Save” command button and assign Equipment to Large Storage Tank. Note) Tank1 Type assigns automatically automatically the Equipment Type as as ‘Large Storage Tank’. 5. Click “delete’ to delete Assigned Equipment.
Input Equipment Data
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6. Click “Input” Icon in Toolbar Icon Menu after ‘Equipment Assign’, the dialog window below will display. 7. Chose ‘Equipment Type’. The shape of Tank is changed according to Type. 8. Input ‘Equipment Diameter.’ Input Default Data as ‘Pier to Pier Center’ value in AFES. 9. Input ‘Equipment Shell/ Insulation/Fire Proofing Thickness.’ 10. Input an Equipment Height & Bottom Plate Height. 11. Input Equipment Empty, Operation, and Test Weight. 12. Input ‘Internal Friction Angle’ of Soil. 13. Input a Filling Material Name, Unit weight, and Thickness for Ring Wall. Note) Thickness1 Thickness1 + Thickness 2 of Ring Wall Wall should be same same as ‘Pier Height’. 14. Input a Data for ‘Sump Pit’ then click “Save” button to save data.
Input Equipment Data
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Settin Settin g Load Case to Foundation Group In this activity, you can assign load cases to the desired
foundation groups. The load combinations may then be different for every Foundation Group. 1. Choose Foundation to input “Load Case/ Combination” in Combo Box. Click “Load Case/Combination” Icon in Toolbar Icon Menu, then “Loads & Combination” Dialog window will display. The default load cases for a tank foundation that AFES generates are as follows: a) b) c) d) e) f) g)
Operating Empty(=Erection) Test X Wind Y Wind X Earthquake Y Earthquake
The default allowable or unfactored load combinations for a tank foundation generated by AFES depend on the concrete design code selected. For example, if ACI code is selected, the combinations are as follows: a) b) c) d) e) f) g) h) i) j) k)
DL + Oper DL + Oper + X Wind DL + Oper + Y Wind DL + Oper + X EQ DL + Oper + Y EQ DL + Empty(=Erec) DL + Empty(=Erec) + X Wind DL + Empty(=Erec) + Y Wind DL + Empty(=Erec) + X EQ DL + Empty(=Erec) + Y EQ DL + Test
The default ultimate or factored load combinations for a tank1 foundation generated by AFES depends on the concrete design code selected. For example, if ACI 318 - 1999 is selected, the combinations are as follows: a) b) c) d) e) f) g) h) i) j) k)
1.4DL + 1.4Oper 1.05DL + 1.05Oper 1.05Oper + 1.275 X Wind 0.9DL + 0.9Oper + 1.3 X Wind 1.05DL +1.05Oper + 1.275 Y Wind 0.9DL + 0.9Oper + 1.3 Y Wind 1.05DL + 1.05Oper + 1.403 X EQ 0.9DL + 0.9Oper + 1.43 X EQ 1.05DL + 1.05Oper + 1.403 Y EQ 0.9DL + 0.9Oper + 1.43 X EQ 1.4DL + 1.4Empty(=Erec) 1.4Empty(=Erec) 1.05DL + 1.05Empty(=Erec) 1.05Empty(=Erec) + 1.275 X Wind
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l) 0.9DL + 0.9Empty(=Erec) 0.9Empty(=Erec) + 1.3 X Wind m) 1.05DL + 1.05Empty(=Erec) 1.05Empty(=Erec) + 1.275 Y Wind n) 0.9DL + 0.9Empty(=Erec) 0.9Empty(=Er ec) + 1.3 Y Wind o) 1.05DL + 1.05Empty(=Erec) 1.05Empty(=Erec) + 1.403 X EQ p) 0.9DL + 0.9Empty(=Erec) 0.9Empty(=Erec) + 1.43 1.43 X EQ q) 1.05DL + 1.05Empty(=Erec) 1.05Empty(=Erec) + 1.403 Y EQ r) 0.9DL + 0.9Empty(=Erec) 0.9Empty(= Erec) + 1.43 X EQ s) 1.0DL + Test Note) 1. Input ‘Load Case Name & Load Case Value’ in ‘Load Case’ dialog window and set ‘Load Combination’ in’ Load Combination’ dialog window. 2. Make ‘Load Combination’ Combination’ using ‘Import Function’ Function’ in ‘Load Combination Window’, and go to ‘Load Case Window’, then ‘Load Case’ is automatically input. After following 1 or 2 s teps above, input ‘Load Case Value’ for each pier. ‘Default Load Combination’ in AFES has the function that can design ‘Tank Foundation’ by importing “Vessel_Load_comb_1.txt” file in ‘Data Directory’. ‘Pier External Loading Sign Convention’ is as below. Axial Loads (Fz), Shear Loads (Fx, Fy), Moment(Mx, Moment(Mx, My, Mz) Axial Loads are negative downwards. downwards. Shear are positive if applied in the positive direction of X and Y Axis. Moments Mx are positive if applied in the counter-clockwise direction about the positive (+X) axis. Moments My are positive positive if applied in the clockwise direction direction about the positive (+Y) Axis.
2. Click “Load Case” Icon, then “Load Case” Dialog will display. 3. Choose Node to add Load Case. (EX. Choose Node 1, 3.) 4. Choose ‘Unassigned Load Case’ in Show state of Load Case. 5. Choose ‘Load Case’ in List Box, and click “Save” command button. 6. To add more ‘Load Cases’, repeat step c). Added ‘Load Case’ is displayed in Spread.
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7. If you finish setting ‘Load Cases’, click click “Finish” command button. button. 8. To add Load Case, click “Edit node list”, choose “Unassigned Load Case” and ‘Load Case’, then click “Save” command button. 9. To delete ‘Load Case’, choose ‘Load Case’ and click “Remove” command button. 10. To input load case value, choose ‘Load Case’ command command and input values in Spread Sheet, Sheet, then click “Save” “Save” command button.
Input Load Case Data
Note) SW : ‘Default Load Case’ of AFES is SELF SELF WEIGHT. WEIGHT. Fy (=-1) means that automatically calculate ‘Foundation Self Weight’ to the direction of Vertical Downward.
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11. Click “Load Combination” Icon, then “Load Combination” Dialog window will display. 12. Click “New” command button. 13. Input ‘Load Combination’ name. 14. Choose Load Cases using Shift Key, then click “>” command button. 15. Input Factor Value. 16. Choose Elastic Strength(=Stability) Strength(=Stability) or Ultimate Strength (=Reinforcement/Shear) (=Reinforcement/Shear) Check for Load Combination. 17. To use Safety Factor used for Sliding and Overturning Moment Check, choose Combo Box when it is for Stability Check. AFES can use 4 safety factors. Choose Choose factor value for Allowable Increase Increase in Combo Box. Note) Set up Sliding, Overturning, Overturning, and Allowable Allowable Increase in “Setting of Constants”. 18. Click “Save” command button to save the values. 19. Repeat step 12 ~ 18.
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Design si gn of Tank Found ou nda ation ti on 1. Choose a ‘Foundation Group’. The steps for Foundation design is as follows. 2. Click “Foundation Analysis/Design” Icon in Toolbar Menu, then “Analysis and Design” dialog window will display as shown below. 3. Choose ‘Regular Shaped Foundation Design Method (=Default)’, and click “OK” command button.
There are several Design Methods available as shown in the figure. Detail of ‘Select Load Distribution Method’ is as follows. 4. Choose whether External Load on Pier Top go to ‘Concentrated Force’ or ‘Uniform Load’. Explanation of ‘Shear & Reinforcement Design for MAT Module’ is stated as follows. 5. Choose a ‘Critical Point‘ to apply to Foundation based on ‘Building Code’.
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6. Choose the ‘Maximum Point’ to design Foundation with Allowance. It is common rule to design with the ‘Maximum Value’ in Mat Foundations. Detail of ‘Structural Analysis Design of Foundation’ is stated below. The Conventional Rigid Method 1: Analyze Foundation with internal forces caused by external forces. The Conventional Rigid Method 2: Analyze based on the fact that the sum of external forces and internal forces is 0. 7. Click “Go to Diagram” command button to see SFD, BMD Diagram. 8. Click “Go to Summary” command button to see Summary Sheet.
Example of clicking “Go to Diagram” command button is shown below. SFD, BMD Diagram can be seen in case of Footing/Group/Load Combination. In case of Tank Foundation, you can input values in ‘Number of Moment Dist. Point’ to assume concentrated load as distributed load. 9. Click “Next” command button to see Summary Sheet.
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10. Choose Load Combination for Foundation Design. To draw several plans in ‘Layout Plan’, you can adjust using “Number of Match Point” Tab.
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“Summary Sheets” of calculation sheet is shown below. You can save as ‘PDF File File Format’ in any Directory.
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11. Click “Show Detail Report” Report” Command Button Button to see detailed calculation sheet.
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Detailed calculation sheet is shown below.
Print out Reports by clicking ‘Option’ Icon in Toolbar Menu.
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12. Click ‘Design/Interactive Design/Ring Wall Design’ to design ‘Ring Wall.’
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To design a ‘Ring Wall Pier’, choose Footing in ‘Footing List’ and Pier in Pier List’, then click “Calculation (One)” command button. ”Detail Report” Tab is activated, and Design Result of Ring Wall is displayed. 13. Click “Calculation (All)” command button to design multiple Ring Wall. ”Detail Report” Tab is activated, and Design Result of Ring Wall is displayed.
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BOM Take-Off for Tank Foundation
Before you start this activity, you must get the right result of foundation design. Do not perform BOM calculation of AFES until the design of foundation is correct.
To calculate Materials for Foundation, click “Take Off Bill of Material” Icon in Toolbar Menu. 1. Input Spec. for Material Calculation, and click “Calculation” button. To apply the same input Spec. to other Foundation, click “Save” command button.
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Materials’ Report for Foundation is shown below. It displays Data, Summary Table, Calculation BOM, and Calculation of Rebars. Rebar, Net BOM, does not consider ‘Bar Bending’ in this function.
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Drawing rawin g Genera Generati tion on for fo r Ta Tank Found ou nda ation ti on This command is very useful in generating construction drawing by
exporting dxf file of AFES and convert data to AutoCAD or Microstation. AFES interfaces directly with AutoCAD, and MicroStation to create a construction drawing. 1. Click “Export DXF File” Icon in Toolbar Menu to generate construction drawing. 2. Click “Option” command button to adjust parameters for Drawing Generation. 3. Click “OK” command button to generate drawing.
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Option for drawing generation is stated below. Data changes for Sheet, Font, Layers, Entity, Drawing (=Bar Leader Type, Bar Bending Include or Not), Bar Bending (=Rebar DB) can be saved. You can choose a single rebar that you want to calculate for Bar Bending calculation. You can verify the adjusted value in ‘Standard Tab’ of drawing. Ex) If you use ‘#-‘, choose ‘ASTM A615’ and adjust values. Click “OK” command button after finishing ‘set up.’
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AFES provides the viewer below. AFES automatically save drawings in Directory/ DxfData/ Project No.
“Standard” tab is the value used for construction drawing. “Layout” tab is plan drawing of foundation location. The rest of Tabs are Foundation Detail Drawing.
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