Solution for Structural Member Design with Drawing & Report
midas
+ Design
User Guide for Eurocode Modules
1. Design+ Interface
2
2. Design Option Setting
4
3. General Column Design
5
4. Combined Wall Design
15
5. Strip Footing Design
22
6. Isolated Footing Design
30
7. Bolt Connection Design
42
8. Design Parameters
54
Midas Design+ 2016 (v1.2)
Solution for Structural Member Design with Drawing & Report
01
Design+ Interface
SIMPLE MODE
• Simple and intuitive
Add new member Addor imp import ort ne new w me memb mber ers. s.
user interface • Quick generation of summary/detail design result in Preview window
Project/Simple/Check Project/Sim ple/Check Mode Chang Ch ange e thecurr thecurren entt wor workin king g mo mode de
Workbar
Preview
Member Mem ber name cha change, nge, Gro Groupin uping, g,
Design
Repor Rep ortt andDrawi andDrawing ng Exp Export ort Se Setup tup
or check
results
are
displaye disp layed d insta instantly. ntly.
Input Input Inp ut de desig sign n da data ta or for force ce (Automatically/Manually)
Report Gene Ge nera rate te in inpu putt da data ta,, su summ mmar ary, y, anddetail anddeta il de desig sign n re resul sultt re repo port rt
• Detail • Summary
PROJECT MODE
• Auto generation of drawing • MS word format report for design/check results, Batch report generation • Bill of materials
• Inpu Inputt List
Tab. Switch Swi tch the wor workin king g win window dow be betwe tween en me memb mber er list list,, dra drawin wing, g, Qua Quanti ntity ty
midas Link Link Lin k wit with h mid midas as Ge Gen n Multip Mul tiple le me memb mber erss ca can n be se selec lected ted an and d imp import orted ed..
Report Gen er erate M S word and excel format form at rep report. ort.
• Detail • Summary • Inpu Inputt List Inputt List (Exce (Excel) l) • Inpu
Message Window Displa Dis play y var variou iouss inf inform ormati ation, on, war warnin ning, g, and err error or mes message sages. s. midas Design+ User Guide
2
Solution for Structural Member Design with Drawing & Report
01
Design+ Interface
SIMPLE MODE
• Simple and intuitive
Add new member Addor imp import ort ne new w me memb mber ers. s.
user interface • Quick generation of summary/detail design result in Preview window
Project/Simple/Check Project/Sim ple/Check Mode Chang Ch ange e thecurr thecurren entt wor workin king g mo mode de
Workbar
Preview
Member Mem ber name cha change, nge, Gro Groupin uping, g,
Design
Repor Rep ortt andDrawi andDrawing ng Exp Export ort Se Setup tup
or check
results
are
displaye disp layed d insta instantly. ntly.
Input Input Inp ut de desig sign n da data ta or for force ce (Automatically/Manually)
Report Gene Ge nera rate te in inpu putt da data ta,, su summ mmar ary, y, anddetail anddeta il de desig sign n re resul sultt re repo port rt
• Detail • Summary
PROJECT MODE
• Auto generation of drawing • MS word format report for design/check results, Batch report generation • Bill of materials
• Inpu Inputt List
Tab. Switch Swi tch the wor workin king g win window dow be betwe tween en me memb mber er list list,, dra drawin wing, g, Qua Quanti ntity ty
midas Link Link Lin k wit with h mid midas as Ge Gen n Multip Mul tiple le me memb mber erss ca can n be se selec lected ted an and d imp import orted ed..
Report Gen er erate M S word and excel format form at rep report. ort.
• Detail • Summary • Inpu Inputt List Inputt List (Exce (Excel) l) • Inpu
Message Window Displa Dis play y var variou iouss inf inform ormati ation, on, war warnin ning, g, and err error or mes message sages. s. midas Design+ User Guide
2
Solution for Structural Member Design with Drawing & Report
01
Design+ Interface
Check MODE
• Reviewing detail/summary
Report Save/Print design results.
design results in Preview window
Preview Option Select Detail / Summary to check the relevant report.
Workbar Cl ic ick a de si sir ed ed m em emb er er f ro ro m Tr ee ee men u. u. T he he use r d oe oes n ot ot ne ed ed t o r eeperfo pe rform rm De Desig sign/C n/Chec heck k aga again in in Che Check ck mode.
midas Design+ User Guide
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Solution for Structural Member Design with Drawing & Report
02
Design Option Setting 1 7
1. Go to Option > Design Option from the main menu.
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2. Change the material and section into desired standard in Steel DB box. 3. Change the design code of RC into “Eurocode2:04” in the list.
Double Click!
4. Shift to the steel tab. 5. Change the design code of Steel into “Eurocode3:05” in the list. 6. Click [Apply] and [Close] button. 7. Go to Option > Rebar Option from the main menu. Design Option dialog dialog bo x also can be opened by dou ble clicking RC : [Code Name] list list
8. Change the rebar code into “BS/EN’ in the list. 9. Specify rebar option by member type.
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8 9
2
10. Define the desired rebar spacing for main rebar and shear rebar if needed. 11. Click [Apply] and [Close] button.
3
12. Go to Option > Steel Option from the main menu. 13. Check [Use User Defined Section List] off from the steel option box.
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14. Click [OK] button.
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6
13 14 midas Design+ User Guide
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Solution for Structural Member Design with Drawing & Report
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1 2 3 4 5 6
midas Design+ User Guide
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Step
01 5
1. Execute “Wall(Comb.)” module. 2. Click “Project Mode”.
1
3. Click “midas Link”. Refer to th e next page for more details in the limitation of midas Link.
4. Select midas Gen to be linked with Design+. 5. Select desired wall elements to be imported from midas Gen.
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3
6. Click [Connect] button. 7. Click [Import] button.
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8. Check imported walls.
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midas Design+ User Guide
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Step
01 Limitation of midas Gen Link for Combined Wall Design
1. Wall ID must be different for each unit wall in midas Gen as shown in the figure below. Importing combined walls with the same wall ID is not supported.
Not Applicable (Identical Wall ID)
Applicable (Different Wall ID)
2. Walls must be located in a single story can be imported as combined wall in Design+. 3. Discontinuous combined walls cannot be designed in Design+.
Applicable (Importing Walls in One Story)
Not Applicable (Discontinuity in Combined Wall)
midas Design+ User Guide
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Step
02
1. Select a combined wall from the tree menu.
2
2. Specify Member Name and the additional task scope after design. 3. Material Strength
3
Concrete: Characteristic compressive of concrete Ver. /Hor. Bar: Characteristic yield strength of vertical/ horizontal reinforcement If the material streng th was not identical for each unit wall in midas Gen, minimum streng th will b e applied.
1
4 5
4. Specify whether effective width applied or not. Actual Width Effective Width 5. Specify unbraced length and effective length factor. Click and use the K-Factor Input dialog box shown below to use default values. 6. Effective Creep Ratio for the calculation of slenderness criterion ( λli m ) as per clause 5.8.3.1(1), EN1992-1-1: 2004 7. Equivalent Dimension for calculating eccentric moment due to imperfection as per clause 6.1(4),EN1992-1-1:2004 8. Options for considering moment magnification due to imperfections and 2nd order effects as per clause 5.8.3.1(1), EN1992-1-1:2004.
Effective
flange width is calculated based on the clause 5.4.3.4.1 (4), EN1998-1:2004. It is taken as the mi nimum of: a) the actual flange width; b) one-half of the distance to an adjacent web of the wall; and c) 25% of the total height of the wall above the level considered. “Effective Width” can be displayed using “Effective Section” option as shown below.
Effective
6
7
8
Length Scale Factor
9. Transfer Combined Wall Wall design is performed about global X and Y axis. Rotate combined wall to make major and minor axis of the wall aligned in the global X and Y axis.
9
K=1.0 K=0.5
K=0.7
K=2.0
When Parallel Dir. Is X or Y-Dir.: Rotate combined wall based on the local x or y-direction of a reference base wall. When Parallel Dir. Is User Input: Specify the angle to be rotated about Global X-axis.
Global Axis of Combined Wall
Display Effective Section + User Guide midas Design
8
Step
02
1. Add, modify or delete unit wall data for rebar and section information. Click [Wall Data] button to see and modify rebar and section information for entire unit wall in a tabular format. 2. Data of vertical/ horizontal/ end rebar for the selected unit wall. 3. Select Rebar Arrangement.
1
2
Divide equally by nearest space: Rebar spacing is adjusted to fit the wall dimension using equal spacing throughout the wall length. Divide by exact space: Specified rebar spacing is applied from the End or Middle of the unit wall. 4. Specify wall thickness and concrete cover thickness. In Preference, the user c an choo se Concrete Cover Depth as clear cover or distanc e to the rebar center. By d efault, con crete cover is appli ed as clear cover thickness.
3
4
5
5. Specify the wall coordinates of start and end point and vertical rebars for each unit wall.
General tab in Preference
Wall Data in a Tabular Format midas Design+ User Guide
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Step
02
1. Enter the design forces and factors for the selected unit wall. Toggle on : Design forces can be directly entered for the selected unit wall in the dialog box . Toggle off : Enter the multiple design forces for the selected unit wall by clicking [Load Combinations] button.
1
When comb ined wall is i m p o r t e d f r o m m i d a s G en , a l l S t r en g t h t y p e l o a d comb inations are a u t o m a t i c a l l y g e n e r a te d i n L o a d C o m b i n a ti o n s d i a l o g box. Most critical load comb inations for axial/ flexure design and shear design are displayed in blu e c e l l s at t h e t o p o f t h e L o a d C o m b i n a t i o n t ab l e .
Forces
displayed in this dialog box are not a com bined design force, but the design force of each unit wall. Combi ned design forces are displayed in Detail/Summary Report.
Refer
to the next pag e for the calculation procedure of combined forces.
Load Combination for Selected Unit Wall
Combined Design Force in Detail/Summary Report midas Design+ User Guide
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Step
02 How to Calculate Combined Design Forces
1. Axial force: Summation of axial forces in unit walls (sign convention: “+” in compression) 2. Shear force: Summation of shear forces in unit walls. Shear forces of unit walls are recalculated in global X and Y-direction. 3. Bending moment is calculated as a summation of bending moments and eccentric moments (axial force * eccentricity from a unit wall centroid to the combined wall centroid) of unit walls about global X and Y-direction.
• When local axis of a unit wall is not aligned in the global X and Y-direction, combined design forces are calculated using the component of the forces in the global X and Y-direction.
* Transfer Combined Wall Wall design is performed about global X and Y axis. Rotate combined wall to make major and minor axis of the wall aligned in the global X and Y axis. When Parallel Dir. Is X or Y-Dir.: Rotate combined wall based on the local x or y -direction of a reference base wall. When Parallel Dir. Is User Input: Specify the angle to be rotated about Global X -axis.
Global Axis of Combined Wall
midas Design+ User Guide
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Step
03
1. Click [Check] button. 2. Review Calculation Result table for moment and shear capacity. 3. Click [Report] button to generate Detail/ Summary /Input List Report.
2
P-M
Curve 3D P-M interaction is considered to find the flexure resistance. After performing wall checking, Midas Design+ displays P-M Curve in “Theta” angle described below.
1
3
Theta: Angle between the Moment axis (horizontal axis) and the line which connects the origin point to the member force point in PM int eraction curve N.A.: Neutral axis angle from the local x-axis
MS Word Format Detail Report
Excel Format Input List
midas Design+ User Guide
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Step
04 1
1.Select [Member List] tab. Input and output data can be checked and modified for the all combined walls. 2. Click [Apply] button if there is any change in the design input data. 3.Click [All] and [Check] button to verify the all wall design results at once.
2
Step
3
05 1
1.Select [Drawing] tab. 2. Select [Shear Wall (Combined)] from the drop-down box and click [Create] button to generate combined wall drawings.
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midas Design+ User Guide
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Step
0 6 1
1.Select [Quantity] tab. 2. Select [Shear Wall (Combined)] from the drop-down box and click [Create] button to generate bill of materials. 3.Click [Export to Excel] button to generate a MS Excel file.
2
3
Quantity
of concrete is calculated as concrete volume per unit length. Quantity of form is calculated using surface area of concrete per unit length. Quantity of rebar is calculat ed as weight of rebar per unit length. Weight of rebar for EN, UNI, and BS material DB is applied as shown in the table below.
Material Properties of EN & BS DB EN/BS Weight (kg/m) Diameter (mm) Area (mm2)
P5 0.154 5 19.6
P6 0.222 6 28.27
P7 0.302 7 38.5
P8 0.395 8 50.27
P9 0.499 9 63.6
P10 0.617 10 78.54
P11 0.746 11 95
P12 0.888 12 113.1
P13 P16 P20 P25 P32 P40 1.043 1.578 2.466 3.853 6.313 9.865 13 16 20 25 32 40 132.7 201.06 314.16 490.87 804.25 1256.6
Material Properties of UNI DB P4 P5 P6 P8 P10 P12 P14 P16 P18 P20 P22 P24 P26 P30 P32 P36 P40 UNI Weight (kg/m) 0.099 0.154 0.222 0.395 0.617 0.888 1.208 1.578 1.998 2.466 2.984 3.551 4.168 5.549 6.313 7.99 9.865 4 5 6 8 10 12 14 16 18 20 22 24 26 30 32 36 40 Diameter (mm) 2 13 20 28 50 79 113 154 201 254 314 380 452 531 707 804 1018 1257 Area (mm )
midas Design+ User Guide
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Solution for Structural Member Design with Drawing & Report
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1 2 3
midas Design+ User Guide
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Step
01 2
1. Select a general column from the tree menu. 2. Specify Member Name and the additional task scope after design.
3
1
3. Material Strength Concrete: Characteristic compressive of concrete Main/Hoop Bar: Characteristic yield strength of major/ hoop reinforcement
4
4. Specify unbraced length and effective length factor. Click button to use the default values.
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5. Select a splicing option for the main rebars.
6
None: Longitudinal rebars calculated without considering splicing 50%: Longitudinal rebars calculated considering 50%-splicing
7
100%: Longitudinal rebars calculated considering 100%-splicing 6. Equivalent Dimension for calculating eccentric moment due to imperfection as per clause 6.1(4),EN1992-1-1:2004 7. Options for considering moment magnification due to imperfections and 2nd order effects as per clause 5.8.3.1(1), EN19921-1:2004.
Tool-tip
Effective
Length Scale Factor
is displayed when
hovering the mouse over field
K=1.0
K=0.5
K=0.7
K=2.0
with * mark.
midas Design+ User Guide
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Step
01
1. Specify concrete cover thickness. Concrete Cover is applied as the distance from the concrete face to the rebar center.
1 2
2. Enter diameter and spacing of hoop bars. Check on “Use User Input” option to apply different rebar diameter and spacing at the top and bottom.
3
3. Enter the design forces. 4. Effective Creep Ratio for the calculation of slenderness criterion ( λli m ) as per clause 5.8.3.1(1), EN1992-1-1: 2004
When
5. Load Combinations Toggle on : Design forces can be directly entered in the dialog box. Toggle off : Enter the multiple design forces by clicking [Load Combinations] button.
4 5
calculating sh ear resistance, different value of axial force from the value for Axial Force and Moment v erification can be defined. Since shear resistance inc rease as axial force inc reases, smaller axial f o r c e m a y o c c u r m o r e c r i t i c a l c as e in shear force verification. Also shear resistance due to conc rete is considered as zero in tensile axial force.
W h e n g e n e r al c o l u m n is imported from midas G e n , 14 l o a d c o m b i n a t i o n s w h i c h c o m p o s ed o f m a x im u m a n d m i n i m u m comb inations of the follow ing compon ents are generated: Max for axial, major m o m e n t ( t o p /b o t ) , m i n o r mom ent (top/bot), and shear forc e (top/bot) (7) + Min for Axial, major m o m e n t ( t o p /b o t ) , m i n o r mom ent (top/bot), and shear forc e (top/bot) (7) = (14) combin ations
Most critical load c o m b i n a t i o n s f o r a x i al / flexure design and shear design are disp layed at the top of the Load C o m b i n a t i o n t a b l e.
Load Combination for General Column
midas Design+ User Guide
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Step
01
1. Define general section shape. CAD Files: Import “*.dwg” or “*.dfx” file. Specify section shape layer and rebar layer separately. MIDAS Section(*.sec): Import “*.sec” file generated from midas SPC or GSD module. 2. Specify the number of main rebars and diameter. The num ber of rebars m u s t b e l a r g er t h a n t h e n u m b e r o f e d g e s.
3. Section Information Shape: Section coordinates
1 2 3
Main Bar : Main rebar coordinates Tie Bar: Tie bar position. Specify two main rebars by index between which a tie rebar is placed. Check on “Show Index” option to display main rebar index.
Import CAD File
midas Design+ User Guide
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03
Step
1. Click [Design] or [Check] button. Check: Verify resistance
ratio based on the user input data. Design: midas Design+
update optimized rebar dimension and spacing. The range of rebar to be used in Design can be specified in Rebar Option (from the main menu, Tools > Rebar Option).
3 2
2. Check calculation results. 3. Check “PM Curve” option. 4. Click [Report] button to generate Detail/ Summary /Input List Report.
1
4
P-M
Curve 3D P-M interaction is considered to find the flexure resistance. After performing column checking, Midas Design+ displays P-M Curve in “Theta” angle described below. Theta: Angle between the Moment axis (horizontal axis) and the line which connects the origin point to the member force point in PM int eraction curve N.A.: Neutral axis angle from the local x-axis MS Word Format Detail Report
Excel Format Input List
midas Design+ User Guide
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Step
04 1
1.Select [Member List] tab. Input and output data can be checked and modified for the all general columns. 2. Click [Apply] button if there is any change in the design input data. 3.Click [All] and [Check] button to verify the all general column design results at once.
2
Step
3
05 1
1.Select [Drawing] tab. 2. Select [Column(General)] from the drop-down box and click [Create] button to generate general column drawings.
2
midas Design+ User Guide
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Step
0 6 1
1.Select [Quantity] tab. 2. Select [Column(General)] from the drop-down box and click [Create] button to generate bill of materials. 3.Click [Export to Excel] button to generate the table in MS excel format.
Quantity
of concrete is calculated as concrete volume per unit length. Quantity of form is calculated using surface area of concrete per unit length. Quantity of rebar is calculat ed as weight of rebar per unit length. Weight of rebar for EN, UNI, and BS material DB is applied as shown in the table below.
3
2
Material Properties of EN & BS DB EN/BS Weight (kg/m) Diameter (mm) Area (mm2)
P5 0.154 5 19.6
P6 0.222 6 28.27
P7 0.302 7 38.5
P8 0.395 8 50.27
P9 0.499 9 63.6
P10 0.617 10 78.54
P11 0.746 11 95
P12 0.888 12 113.1
P13 P16 P20 P25 P32 P40 1.043 1.578 2.466 3.853 6.313 9.865 13 16 20 25 32 40 132.7 201.06 314.16 490.87 804.25 1256.6
Material Properties of UNI DB P4 P5 P6 P8 P10 P12 P14 P16 P18 P20 P22 P24 P26 P30 P32 P36 P40 UNI Weight (kg/m) 0.099 0.154 0.222 0.395 0.617 0.888 1.208 1.578 1.998 2.466 2.984 3.551 4.168 5.549 6.313 7.99 9.865 4 5 6 8 10 12 14 16 18 20 22 24 26 30 32 36 40 Diameter (mm) 2 13 20 28 50 79 113 154 201 254 314 380 452 531 707 804 1018 1257 Area (mm )
midas Design+ User Guide
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Solution for Structural Member Design with Drawing & Report
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1 2 3 4 5 6
midas Design+ User Guide
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Step
01
1. Execute “Footing(Strip)” module.
1
2. Click “Project Mode”. D es i g n m e m b e r f o r c e c a n be imported from midas
Gen when “Project Mode” is selected.
3. Click “midas Link”. Solid rectang le, T-Sectio n, and Inverted T-Section i n midas Gen can be i m p o r t e d i n t o D es i g n + t o p e r f o r m s t ri p f o o t i n g design.
In case of “Inverted T - Section”, left and right flange width (b1 and b2) must b e identical.
5
Midas Link supports beam e l em e n t s w h i c h a r e a s si g n e d P o i n t S p r i n g S u p p o r t o r S u r f ac e S p r i n g Support.
4. Select midas Gen to be linked with Design+. 5. Select desired strip footing elements to be imported from midas Gen.
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2
7
6. Click [Connect] button. 7. Click [Import] button. 8. Check imported footings.
4
6
midas Design+ User Guide
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Step
02
1. Select a strip footing from the tree menu. 2. Specify Member Name and the additional task scope after design.
2
3. Material Strength - Concrete: Characteristic compressive strength of concrete
3
- Main Bar, Stirrup, Transv. Bar: Characteristic yield strength of reinforcement 4. Enter section size and concrete cover depth. Use Bottom Cover: Check on the option to apply identical concrete cover depth for top and bottom. 5. Specify flexure design method between singly reinforced beam and double reinforced beam design. 6. Specify soil bearing capacity to be compared with soil reaction. 7. Select a splicing option for the main rebars. None: Longitudinal rebars calculated without considering splicing 50%: Longitudinal rebars calculated considering 50%splicing 100%: Longitudinal rebars calculated considering 100%splicing Tool-tip
4
1
5 6 7
is displayed when
hovering the mouse over field with * mark.
midas Design+ User Guide
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Step
03 1
1. Rebar Arrangement
2
Type-1 (All section): Select when rebar data for i-end, middle and j-end are identical. Type-2 (Both End & Center): Select when rebar data for i-end and j-end are identical. Type-3 (Each End & Center): Select when rebar data for i-end, middle and jend are not identical.
3
2. Change Section Data max(i,m,j): Click to apply maximum design forces and rebar data to all sections. max(i,j): Click to apply the critical design combinations and rebar from i and j-end s to both ends. i↔ j: Click to swap design forces and rebar data between i and j-end. Change Force Only: Check on the option to change design forces only when applying above buttons.
Design
Forces imported from midas Gen
Envelope values among the all loa d combinations are imported from midas Gen. If “Member Assignment” is specified, the envelope values at i-end, middle, and j-end of a member are imported.
3. Design Options Use Different Rebar at each layer: Check on to use different rebar diameter for layer1 and 2. Use Same Main Rebar at Top and Bottom: Check on when the top rebar size is the same as bottom rebar size. Show Load Combinations: Display load combination name with design forces.
midas Design+ User Guide
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Step
03 How to Design Strip Footing
The dimension of Continuous Beam Strip footing is determined as follows:
1. The rectangular beam in red box is designed from the longitudinal moment and shear.
Moment & Shear Resistance
2. The bottom width of strip footing is determined from allowable bearing pressure. The allowable bearing pressure needs to be entered by user. Soil Reaction
3. The thickness and reinforcements in the cantilever are determined from the moments and shear forces due to soil pressure. The soil pressure is taken from the soil pressure calculated in midas Gen (from the
Transverse Bar & Shear (1-way)
main menu, Results > Reactions > Soil Pressure) . Column Loads Load
Loading
Pressure
Bending Moments
Reinforcement
Cantilever bars
Longitudinal bending +ve and –ve reinforcement
Design Forces in Strip Footing
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Step
04
1. Click [Design] or [Check] button. Check: Verify resistance r a t i o b a s ed o n t h e u s e r i n p u t d a t a. Design: Verify resistance r a t i o a n d u p d a t e r e b ar i f required.
2. Check calculation results. 3. Click [Report] button to generate Detail/ Summary /Input List Report.
2
MS Word Format Detail Report
Excel Format Input List
midas Design+ User Guide
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Step
05
1.Select [Member List] tab. Input and output data can be checked and modified for the all strip footings.
1
2. Click [Apply] button if there is any change in the design input data. 3.Click [All] and [Check] button to verify the all strip footing design results at once.
2
Step
3
06 1
1.Select [Drawing] tab. 2. Select [Footing(Strip)] from the drop-down box and click [Create] button to generate strip footing drawings.
2
midas Design+ User Guide
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Step
0 7 1
1.Select [Quantity] tab. 2. Select [Footing(Strip)] from the drop-down box and click [Create] button to generate bill of materials. 3.Click [Export to Excel] button to generate the MS excel file.
Quantity
of concrete is calculated as concrete volume per unit length. Quantity of form is calculated using surface area of concrete per unit length. Quantity of rebar is calculat ed as weight of rebar per unit length. Weight of rebar for EN, UNI, and BS material DB is applied as shown in the table below.
2
3
Material Properties of EN & BS DB EN/BS Weight (kg/m) Diameter (mm) Area (mm2)
P5 0.154 5 19.6
P6 0.222 6 28.27
P7 0.302 7 38.5
P8 0.395 8 50.27
P9 0.499 9 63.6
P10 0.617 10 78.54
P11 0.746 11 95
P12 0.888 12 113.1
P13 P16 P20 P25 P32 P40 1.043 1.578 2.466 3.853 6.313 9.865 13 16 20 25 32 40 132.7 201.06 314.16 490.87 804.25 1256.6
Material Properties of UNI DB P4 P5 P6 P8 P10 P12 P14 P16 P18 P20 P22 P24 P26 P30 P32 P36 P40 UNI Weight (kg/m) 0.099 0.154 0.222 0.395 0.617 0.888 1.208 1.578 1.998 2.466 2.984 3.551 4.168 5.549 6.313 7.99 9.865 4 5 6 8 10 12 14 16 18 20 22 24 26 30 32 36 40 Diameter (mm) 2 13 20 28 50 79 113 154 201 254 314 380 452 531 707 804 1018 1257 Area (mm )
midas Design+ User Guide
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Solution for Structural Member Design with Drawing & Report
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1 2 3 4 5 6 7
midas Design+ User Guide
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Step
01
1. Execute “Isolated Footing” from Footing module. 2. Click “midas Link”.
1
3. Select midas Gen to be linked with Design+. 4. Click [Connect] button. 5. Shift to midas Gen and select the node where Isolated footing will be imported to Design+.
2
N o d e s w h i c h a r e as s i g n e d Support on the bottom of R C c o l u m n s i n G e n c an b e i m p o r t e d i n t o D es i g n + t o p e r f o r m i s o l a t ed f o o t i n g design. C o l u m n s i ze a n d r e a c t i o n forces from analyzed r es u l t fr o m m i d a s G en w i l l b e i m p o r t e d a u t o m a t i c a ll y .
6 3
7
4
6. Come back to Design+ again and click [Import] button. 7. Check imported footings. Refer the next page for m o r e d e t a i l ab o u t l i n k e d items and [Option] control box.
5
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Step
01 Capability of linking items from midas Gen to Design+
1. [Link Option] Dialog Box
Link by Section : Import one component of crit ical reaction force among all members which have same section. Link by Member : Import all components which were selected from midas Gen with each reaction forces respectively.
Link by Section is checked on
Link by Member is checked on
In this exampl e, when “Link by Section” option is selected, only three components will be imported even if six nodes are selected in midas Gen since there are only 3 different section properties. When “Link by Member“ option is checked, all six nodes will be imported separately.
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Step
01 Capability of linking items from midas Gen to Design+
2. The name and size for column from midas Gen to Design+
1C3 800X800(1237) Node Number Section Name midas Gen
Storey Name
midas Design+
Importing the member name format can be set by user at [Link Option] Dialog Box.
3. Critical reaction force among load combinations for ULS and SLS
Serviceability Limit States
Ultimate Limit States
Imported critical reaction force
Display the load combination
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Step
02 2
1. Select the isolated footing from the tree menu.
3
2. Specify Member Name and the additional task scope after design.
4
3. Material Strength - Concrete: Characteristic compressive strength of concrete - Main Bar: Characteristic yield strength of reinforcement 4. Design Load 1) Serviceability Limit State - N.Ed.s: Axial force - M.Ed.sx: Moment x-axis - M.Ed.sy: Moment y-axis 2) Ultimate Limit State - N.Ed.u: Axial force - M.Ed.ux: Moment x-axis - M.Ed.uy: Moment y-axis
1 5
5. Surcharge Load - Surface Load: Additional applied loading on the surface of soil. - Weight Density: The weight density of surcharged soil. - Height: The height from footing face to the top of surcharged soil. By clicking this butto n, [Load Combination] button wil l be activated. The reaction data for various load comb ination that were c a lc u l a te d i n m i d a s G en c a n be view ed here.
If “Include Self - Weight” optio n is checked on, the s e l f -w e i g h t o f c o l u m n a n d f o o t i n g w i l l b e t ak e n i n t o account for design load. [ M x < -> M y ] b u t t o n a l lo w s to swap the design load of Mx and My for b oth SLS and ULS.
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02
Step
6. Select the footing type as Isolated(Mat) or Isolated(Pile) and enter the footing depth and clear concrete cover depth. 7. Select the column shape and enter the size of section. Ex and Ey is for the eccentricity.
Y-Direction
6
X-Direction
7 8
Cx Column
Cy
Ey Center of footing
Tool-tip
Ex
is displayed when
hovering the mouse over field
with
*
mark.
8. Input the rebar data and spacing for X and Y direction. 9. Enter the footing size - Isolated (Mat): Footing size can be directly modified. - Isolated (Pile): Footing size can not be modified directly. It will be specified by the arrangement of piles. 10. Specify soil bearing capacity for the mat footing or pile capacity for the pile footing to be compared with soil reaction. B l u e c o l o r t a b l e c e ll i s t h e o u t p u t a r ea w h i c h c a n n o t b e mod ified by user. Green color table cell is the i n p u t a r ea w h i c h c a n b e mod ified by user.
9
9
10 10
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Step
03 How to Design Isolated Footing
An isolated mat footing transfers the loads from a single column to the supporting soil. The size of the footing is determined by the allowable soil bearing pressure. The footing is designed for flexure, punching or two-way shear and one-way shear. The depth of the footing is generally governed by punching shear.
Pressure distributions for pad foundations
Typical basic control perimeters around loaded areas
Shear checks for isolated mat foundation
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Step
03 How to Design Isolated Footing (Continue)
Where moments are applied to the pilecap the load combination should also be used to check the piles can resist the overturning forces. A pilecap may be treated as a beam in bending, where the critical bending moments for the design of the bottom reinforcement are located at the column faces. Both beam shear and punching shear should then be checked as shown in the figure below.
Beam shear < d from column face
Punching shear < 2d from column face
Critical shear perimeters for piles
As contributing to shear capacity
Stress zone 45
Shear reinforcement for pilecaps
If the basic shear stress is exceeded, the designer should increase the depth of the base. Alternatively, the amount of main reinforcement could be increased or, less desirably, shear links could be provided. midas Design+ User Guide
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Step
04
1. Click [Design] or [Check] button. Check: Verify resistance r a t i o b a s ed o n t h e u s e r i n p u t d a t a. D es i g n : U p d a t e o p t i m i z e d rebar and v erify resistance ratio.
2
2. Check calculation results. 3. Click [Report] button to generate Detail/ Summary /Input List Report. Detail calculation p rocess with formula of s p e c i f i c at i o n c a n b e checked in [Simple Mode] Detail Repo rt. Refer th e page 2 to change the project mode to the simple mode.
1
MS Word Report from [Project Mode]
3
PDF Report from [Simple Mode]
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Step
04 Allow the program to change the footing size while design process In case the footing size is not satisfied with the design result, [Change Section by Design] option can allow the program to find the footing size automatically.
When [Change Section by Design] option is checked Off
Footing size will be fixed and rebar size and spacing will be changed. It is possible that the design result is not satisfied with the specification
When [Change Section by Design] option is checked On
Footing size or pad depth will be changed by the program in order to find the satisfied result for the specification.
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Step
05 1
1.Select [Member List] tab. Input and output data can be checked and modified for the all isolated footings. 2. Click [Apply] button if there is any change in the design input data. 3.Click [All] and [Check] button to verify the all strip footing design results at once.
2
3
D i f f er e n t c o l o r o f c e l l s Green Cell
Input data cell which can be modified by user
Blue Cell
Output data cell which is calculated by the program
Excel format of Member List
Step
06 1
1.Select [Drawing] tab. 2. Select [Footing] from the drop-down box and click [Create] button to generate isolated footing drawings.
2 CAD format of Drawings
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Step
0 7 1
1.Select [Quantity] tab. 2. Select [Footing] from the drop-down box and click [Create] button to generate bill of materials. 3.Click [Export to Excel] button to generate the MS excel file.
Quantity
of concrete is calculated as concrete volume per unit length. Quantity of rebar is calculat ed as weight of rebar per unit length. Weight of rebar for EN, UNI, and BS material DB is applied as shown in the table below.
2
3
Material Properties of EN & BS DB EN/BS Weight (kg/m) Diameter (mm) Area (mm2)
P5 0.154 5 19.6
P6 0.222 6 28.27
P7 0.302 7 38.5
P8 0.395 8 50.27
P9 0.499 9 63.6
P10 0.617 10 78.54
P11 0.746 11 95
P12 0.888 12 113.1
P13 P16 P20 P25 P32 P40 1.043 1.578 2.466 3.853 6.313 9.865 13 16 20 25 32 40 132.7 201.06 314.16 490.87 804.25 1256.6
Material Properties of UNI DB P4 P5 P6 P8 P10 P12 P14 P16 P18 P20 P22 P24 P26 P30 P32 P36 P40 UNI Weight (kg/m) 0.099 0.154 0.222 0.395 0.617 0.888 1.208 1.578 1.998 2.466 2.984 3.551 4.168 5.549 6.313 7.99 9.865 4 5 6 8 10 12 14 16 18 20 22 24 26 30 32 36 40 Diameter (mm) 2 13 20 28 50 79 113 154 201 254 314 380 452 531 707 804 1018 1257 Area (mm )
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Solution for Structural Member Design with Drawing & Report
07
1 2 3 4 5 6
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Step
01
1. Execute “Bolt Connection” from Steel category. 2. Click “midas Link”.
1
3. Select midas Gen to be linked with Design+. 4. Click [Connect] button. 5. Shift to midas Gen and select desired Steel elements to be imported to Design+.
2
S ec t i o n a n d m e m b e r f o r c e o f s t e el s u p p o r t i n g a n d suppo rted member with analysis result of m idas Gen will be imported automatically.
6 3
7
4
6. Come back to Design+ again and click [Import] button. 7. Check imported steel connections.
5
Refer the page 32 for m o r e d e t a i l ab o u t l i n k e d items and [Option] control box.
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01
Step
Import connection at i-end of member Importing connections from midas Gen to midas Design+ works for i-end position of selected members. The section size of selected member and supporting member, material properties, connection type and design loading can be imported from midas Gen.
j 1
Case 1 Importedas Beam to Column Connection
i j
2
Case 2 Imported as Column Splice Connection
i
midas Gen
midas Design+
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Step
02 2
1. Select a member on Bolt Connection from the tree menu.
3
2. Specify Member Name and the additional task scope after design.
4
W h e n i m p o r t i n g f r o m G en , M e m b e r N am e d o e s n o t n e ed t o b e s p e c i f i ed . Refer page 32 in o rder to i m p o r t t h e m em b e r n a m e .
5
3. Select Connection Type - Fin Plate (Beam to Beam) - Fin Plate (Beam to Column) - End Plate (Beam to Beam) - End Plate (Beam to Column) - Column Splice (Bearing)
6
4. Define Material Properties When th e same m aterial DB with Gen and Design+ are selected, Material Properties will be imported from Gen automatically.
7 1
5. Define Section Properties - Shape: H-Section is available - Use DB: if this option is checked off, user can define own section size by clicking button 6. Select the position to be connected * Av ailable for Fin/End Plate (Beam to Column) only
8
9
7. Force : Refer the next page 8. Select the bolt properties. - Material: Bolt class. - Name: The size of bolt. - Type: Tension resistance will be different for Ordinary and Countersunk bolt.
Yield strength f yb and Ultimate tensile strength f ub for bolts
9. Define the w eldin g material and leg length.
Tension Resistance of Countersunk bolt
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Step
02 Fin/End Plate 2 4
6
290
1
3
3
4
5 2
1 Simulated Design+ Model
Example - Fin Plate Connection
If the option is checked on, the design force will be define as 30% of steel strength = . × , = . × ⋅ Design either one sided connection or two sided connection Tying axial force of supported beam Shear force for one-sided(y) 1
and other sided(y2) 2
Depth of other side Fin/End plate 3 The number of rows of other side Fin/End plate 4 The horizontal(x) 1
and vertical(y) 2 spacing of bolts
Spacing or Extension has limited dimension as per Eurocode. The dimensionwhich are out of limitation cannot be applied.
: Allow program to define appropriate bolt spacing The horizontal(x) 3
and vertical(y) 4 extension of bolts
Gap from the supporting member web to the supported web 5 Difference between the top flange level of supporting member and supported member Gap from the top flange of supporting member to the top of Fin/End plate 6 The number of bolt of Fin/End plate
The lower number of bolt than the limitation cannot be applied. Select the end plate type as partial depth or full depth end plate
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Step
02 Column Splice - Bearing 2
1
3
4
4
2
4
1
2 2
1
1 3
3
Example-Column Splice-bearing Connection
Simulated Design+ Model
If the option is checked on, the design force will be define as 30% of steel strength Axial compressive force due to all factored load Axial compressive force due to factored permanent load only Moment a bout x-axis 1
and y-axis 2
Shear force about x-axis 3
1
2
and y-axis 4
Select the cover plate type to define the spacing and extension
The horizontal(x) 1
and vertical(y) 2 spacing of bolts
The horizontal(x) 3
and vertical(y) 4 extension of bolts
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Step
02 Column Splice - Bearing (Continue)
Example-Column Splice-bearing Connection
Simulated Design+ Model
Check this option on to apply the division plate on the connection
The number of bolts per side for Web Cover plate or Cleat Thickness of Web Cover Plate The number of bolts per side for Flange Cover Plate Thickness of Flange Cover Plate Select the connection type of Flange Cover Plate
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Step
03 Design procedure for Fin plate connection
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Step
03 Design procedure for End plate connection
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Step
03 Design procedure for Column Splice-bearing connection
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Step
04 2
1. Click [Design] or [Check] button. Check: Verify the check of c o n n e c t i o n b a se d o n u s e r i n p u t d a ta Design: Verify the design of conn ection and upd ate the numb er of bo lts or the thick ness of plates if required.
2. Check calculation results. 3. Click [Report] button to generate Detail/ Summary /Input List Report. Detail calculation p rocess with design formula of s p e c i f i c at i o n c a n b e checked in [Simple Mode] Detail Repo rt. Refer th e page 2 to change the project mode to the simple mode.
1
MS Word Report from [Project Mode]
3
PDF Report from [Simple Mode]
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Step
05 1
1.Select [Member List] tab. Input and output data can be checked and modified for the all strip footings. 2. Click [Apply] button if there is any change in the design input data. 3.Click [All] and [Check] button to verify the all strip footing design results at once.
2
D i f f er e n t c o l o r o f c e l l s Green Cell
Input data cell which can be modified by user
Blue Cell
Output data cell which is calculated by the program
Excel format of Member List
Step
06 1
1.Select [Drawing] tab. 2. Select [Bolt Connection] from the drop-down box and click [Create] button to generate bolt connection drawings.
2
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Solution for Structural Member Design with Drawing & Report
08
1 2 3
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Step
01 Slab / Shear Wall •Change section by Design: Check on to update section size in Design. Max. Thick: Check on to specify the maximum thickness.
1
1. From the main menu, click O p t i o n > P r e f e r en c e. Click “RC(1)” tab.
Beam / Column •Change section by Design: Check on to update section size in Design. •Max. Width / Max. Height: Check on to specify the maximum width and height.
2. Click “RC(2)” tab. 3. Click “Section” tab.
Basement Wall / Footing •Change section by Design : Check on to modify the thickness in Design. •Max. Thick: Check on to specify the maximum thickness. •Apply shear reinforcement: Specify the applicable shear rebar diameter.
Preference
dialog box can be
invoked from Workbar by clicking
2
“Design Option > Preference”. Click
[Default] button to reset all
the preference settings.
Buttress / Corbel •Change section by Design: Check on to update section size in Design. •Max. Width / Max. Height: Check on to specify the maximum width and height. •Max. Layer No.: Maximum number of layers to be used in Design. Stair •Change section by Design: Check on to update section size in Design. •Max. Thick: Check on to specify the maximum thickness.
3
Section Increment(RC): Specify the dimension increment for Design.
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Step
01 1
1. Click “General” tab. 2. Click “Word” tab.
User Interface Mode • Select default model when executing the program. Default Report Type for Simple Mode/Check Mode • Default report type once design or check is performed. Cover Concrete Depth • Use clear cover : Define concrete cover depth as clear depth • Use distance from face to rebar center : Define concrete cover depth as the distance from the center of the rebar to the concrete face ※ In case of column, “Use distance from face to rebar center” option is always applied. Result data • Do not Delete Results Data When Input Data is Changed: Retain design results when design parameters are changed. • Include design result in Input File(Excel) : Check on to include design results in input list excel report. • Show “Apply” Button in Member Dialog : Display [Apply] button in Member tab.
2
Word •Modify default settings of font and text size for MS word report generated from Project Mode.
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Step
01 1
1. Click Drawing tab. 2. Click File tab. 3. Click Layer tab.
Tie bar of Circular Column • Parallel : • Radial : Rebar Name • Use Name by Strength: Check on to enter the rebar name by rebar strength. Print design force • Select design forces to be printed in the drawing file.
2
Frame File / Legend File • Specify the file path of default files.
3
Layer •Specify the default line color and line type for drawing.
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0 2
Step
1. In order to change the member order in Workbar, right-click on Beam and select Reordering. 2. Modify the order of members.
1
2a. Select members to change the order and click [>>] button. 2b. Click [Up] or [Down] button to change the member order.
2a
2b
2c. Click [Apply] and [OK] button. 2d. Check the updated member order in W orkbar. The
user can simply use “drag &
drop” on the Workbar to change the member order.
2c Step
03
1.In order to modify member name displayed in the Workbar, right-click on the desired member and select “Rename” from the context menu. “F2” key from keyboard can also be used.
1
- Press [Enter] after entering the new member name.
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