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S U R A N A R E E
UNIVERSITY OF TECHNOLOGY
INSTITUTE OF ENGINEERING
SCHOOL OF CIVIL ENGINEERING
Integrated 3D
Linear & Nonlinear
Finite Element
Analysis & Design
13-14 July 2013
@ Royal River Hotel
Day 1
Training Timeline
8:30 10:15 Introduction & Overview
10:30 12:00 Getting Started
13:00 14:45 Modeling 1 Ex : RC Housing
15:00 17:00 Modeling 2 Ex : Steel Building
Day 28:30 10:15 Loadings
10:30 12:00 Analysis 1
13:00 14:45 Analysis 2
15:00 17:00 Design
Introduction
Integrated 3D Linear & Nonlinear Finite Element Analysis & DesignLatest Version 15.2.1
Integrated 3D-Object Based Modeling,Analysis & Design of BuildingsLatest Version 2013
Computer and Structures Inc (CSI)
Latest Versions
Integrated Design of Flat Slabs,Foundation Mats & Spread FootingsLatest Version 12.3.2
Nonlinear Analysis and PerformanceAssessment for 3D StructuresLatest Version 4.0.4
Getting Started
- - -
SAP2000
Set 3D View
View > Set 3D View
XY
Z
Plan angle = 225o
Elevation angle = 35o
Aperture angle = 60o
Default 3D View
Planangle
225o
X
Y
Viewdirection
Eye point
Target point
Plan Angle
Elevationangle
35o
X
Z Viewdirection
Eye point
Target point
Elevation Angle Aperture Angle
ApertureangleEye
point
XYZ
Zoom Pan Rotate 3D
Shift
!!"# !"#$"!$%&()*+*++,-./0$12&"34&1506"51271"&5068!54&509
$8% : ;
Modeling
Example : RC Housing
4 m
4 m
2.5
m3.
5 m
PS
PS
PSPS
PS
1st Floor PlanELEV. +0.30
4 m
2nd Floor PlanELEV. +3.30
PS
S1
2 m
S1 ST
4 m
PS
PSPS
4 m
Beam Local Axis
B30X50 Depth (t3) = 50 cm
Width (t2) = 30 cm
Column Local Axis
C30X30 Depth (t3) = 30 cm
Width (t2) = 30 cm
Z
X Yi
j
1
2 3
Local 1 Axis is Parallel to +Z AxisLocal 2 Axis is Parallel to +X Axis
Z
X Y
i
j
1
2
3
Local 1 Axis is Parallel to +Y AxisLocal 2 Axis is Parallel to +Z Axis
Column Beam
Z
XY
1
23
2
3
t2
t3
Right HandRule
123
Right HandRule
Z
XY
12
3
Select Object
Reshape Object
Draw Frames
Quick Draw Frames
Quick Draw Braces
Create Secondary Beams
Draw Areas
Draw Rectangular Areas
Create Areas
Snap to Grid Intersection
Snap to Line Ends and Midpoint
Snap to Intersection
Snap to Perpendicular Projection
Snap to Line and Edge
Snap to Fine Grid
Draw Joints
Extrude Points to Lines
Extrude Lines to Areas
Extrude Areas to Solids
Draw Developed Elevation
Draw Reference Point
Replicate
Move Points/Lines/Areas
Mesh Areas
Split Frames
Join Frames
Area Section Thicknesses
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+)+,-./)$ %$01
2+)+,-./)3%
$0)*456)78(9
,)/:7/8$ %$02!;#3
Area Section Behavior
Membranein-plane membrane stiffness
Membrane
U1Node 1
R3U2
U1Node 3
R3U2
U1
Node 4
R3
U2
U1
Node 2
U2
3 2
1
Plateout-of-plane plate bending stiffness
R1
Node 1
U3R2
1
23
R1
Node 2
U3R2
R1
Node 3
U3R2
R1
Node 4
U3R2
Plate
Shellin-plane membrane stiffness
out-of-plane plate bending stiffness
Membrane Behavior
Area Load Transfer for Membrane only
One Way Slab:
Two Way Slab:
Plank (One -way Precast Slab)
Drawing Stair
- Adding Reference Plane
- Draw Half Landing Beam & Slab
- Draw Stair from Half Landing Slab
4 m
3 m
1.5 m
Reference Plane
2 m
Example : Steel Frame
THAI Steel Sections
TH_WF.PRO
Wide Flange Sections
TH_CHNL.PRO
Channel Sections
TH_PIPE.PRO
Round Pipe Sections
TH_SQRT.PRO
Square Tube Sections
TH_RECT.PRO
Rectangular Tube Sections
Steel Section
Properties
Simple connection
Moment connectionX
Y
Simple & Moment Connections
Frame Release :
Simple Connection
2
3Torsion
2
3
Draw Roof Truss
Draw Roof Rafter
Support &Loading
EX4 : Simple RC Frame
Support Modeling
Distributed Loading
!"# !"# $"# $"#!#%#
Fixed v.s. Pinned Supports
Fixed Support
Steel columnon base plate Pinned Support
Stiff mat footing
Spring Support
Spring Support
Subgrademodulusk =
k = ? !"#$%& "
1. Winkler models
2. Half space models
3. Finite Element models
Spring Support
&(
"$() fixed ) ?
!(#$%& *$
#$$ *$"!"$%&
+"(,-$"%&
$
.)/)$$!)0 Pinned
.)/)"$!)1/0 Fixed
Analysis
EX5 : Continuous Beam
5 m 4 m 2 m
1.0 t/m
2 ton
Frame Element Internal Forces
Display > Show Forces/Stresses > Frames
P = 1
V2, V3 = 2 3
T = 1
M2, M3 = 2 3
12
3
EX6 : Simple RC 2
Membrane v.s . Shell Deformation
Moment in Columns from EQKY & WINDY
EQKY
Z
XY
1
23
M22
M 3-3 in Beams
M 2-2 in Columns
Windward & Leeward Walls
Local Axes Area Objects
Set Building View Options > Area Local Axes
Z
XY
12
3
Area Local Axes : 1 2 3
Z
XY
12
3
$) ) ) )("-! !
$) )&2$$ !
) )("-! )3 $ Z 4
$) )(5& 6%& )+Z "$ !"-! (5& +) +Y
$) )"-! )3) X-Y4
Shell Element Stresses
Negative 3 Face(back of element)
Negative 2 Face
Neg
ativ
e 1
Fac
e
1
2
3P
ositi
ve 1
Fac
e
Positive 2 Face
Positive 3 Face(front of element)
Faces of Shell Elements
Shell Element Forces
Shell Element Moments
Wind on Flat Roof
WindwardCp = 0.8
LeewardCp = -0.5
Top Floor Cp = -1.0
Z
Y
Wind on Inclined Roof
WindwardCp = 0.8
LeewardCp = -0.5Z
Y
Roof WindwardCp = 0.5
Roof LeewardCp = -1.0
30-45o
Wind on Inclined Roof
4.0 m 4.0 m
q = tan-1(3/4) = 36.87o
3.0
m
Z
Y
3
Cp = 1.0
CpY = 0.6
CpZ = 0.83
Cp = 1.0
CpY = -0.6
CpZ = 0.8
Wind on Inclined Roof
Design
EX7 : 2D Truss
10 @ 1 m = 10 m
1 m
2 m
RC DESIGN Longitudinal Steel
RC Design Result Shear Reinforcing
Av/s = 0.018
DB10 : A v = 2(0.785)
s = 1.57/0.018
d/2 = 36/2 = 18 cm
= 1.57 cm2
= 87.2 cm
USE DB10 @ 0.18 m
RC Slab Design
RC Slab Design
ApplicationExamples
Topics
! "#$
##% !
#
SAP2000 Application Example:
3D Steel Frame 1
SAP2000 Application Example:
Curved Truss 2
SAP2000 Application Example:
3
SAP2000 Application Example:
4
SAP2000 Application Example:
5
SAP2000 Application Example:
6
SAP2000 Application Example:
7