Transcript Future Enhancements New Cell Tower Add

GTSTRUDL
GTSTRUDL
Version 30 and Future Releases
Dr. Kenneth M.(Mac) Will
GTSUG 2009
June 2009
Atlanta, GA
GTSTRUDL
Presentation Outline
• Status of Version 30
• New Features in Version 30
• Demonstration of selected new features in
Version 30
• Future releases and enhancements
GTSTRUDL
Status of Version 30
• QA is complete.
• Documentation is complete.
• CD’s have been sent to the duplicating
service. We expect to begin shipment in
two weeks.
• CD is being distributed to GTSUG
attendees now.
GTSTRUDL
New Dynamics Features
• Space frame members may now have member
releases including elastic connections when
performing a dynamic analysis with an INITIAL
STRESS loading.
• You may now create a new time history file by
extracting a segment from an existing time history
file and factoring an initial portion of that segment
with a ramp function. The revised CREATE
TIME HISTORY command is shown on the next
slide.
GTSTRUDL
New Dynamics Features (cont)


specs
segment
time


 joint specs
CREATE TIME (HISTORY) FILE 'filenamenew' (FROM) 
where,
X 
'a1' 
 
joint specs  JOINT   TRANSLATION Y  LOADING
 i1 
Z 
 
'a2' 
 
 i2 
time segment specs 
TIME SEGMENT (OF) FILE 'filenamesrc' START (TIME) vS 
LINEAR 
 BUILD (TIME) vB
COSINE 
END (TIME) vE RAMP (FUNCTION) 
GTSTRUDL
New Dynamics Features (cont)
• The efficiency of the CQC and DSM
response spectrum modal combinations
methods has been dramatically improved
when used in conjunction with the
EXTERNAL FILE SOLVER. An example
of the improvement is shown on the next
slide.
GTSTRUDL
New Dynamics Features (cont)
• Example of CQC efficiency improvement:
# joints
= 2378
# plate elements
= 2460
# frame members
= 729
# degrees of freedom =13,662
Time to compute CQC results:
Previous version = 7,930 sec
Version 30
= 300 sec
GTSTRUDL
New Dynamics Features (cont)
• External file solvers can now be used in
conjunction with Harmonic Analysis. A
Harmonic Analysis can now be performed
on larger models at improved speeds.
GTSTRUDL
New Dynamics Features (cont)
• Response Spectrum Analysis has been extended to
provide support for modal combinations in
accordance with NRC Guide 1.92, Revision 2.
The Response Spectrum Load and Mode Factors
commands have been extended to allow the
computation of the Gupta method rigid and
periodic modal response factors. Other commands
have been extended to provide for the computation
and listing of ALGebraic modal combinations.
GTSTRUDL
New General Features
• A new feature, CALCULATE PRESSURE, has
been added to report a calculated pressure for each
joint incident to the specified finite elements,
based on spring forces at the joint and the tributary
area of the joint. This command approximates the
pressure felt by a continuous supporting material,
such as soil under a foundation or concrete bearing
surface supporting a base plate.
The new CALCULATE PRESSURE command is
shown on the next slide.
GTSTRUDL
New General Features (cont)
 X
 
CALCULATE PRESSURE PLANE  Y  (EQUAL) v1 
Z
 
( ( PLANE) TOLERANCE v2 ) ( ( PLANE) ANGLE (TOLERANCE) v3 ) 
(ELEMENTS list ) ( (SHOW) CALCS) (SUMMARY (ONLY) )
GTSTRUDL
New General Features (cont)
• The SAVE command error processing has
been improved. If a SAVE file is unable to
be created or opened in write mode due to
permission status, GTSTRUDL will now
issue a warning, ignore the SAVE, and
continue processing any remaining
commands.
GTSTRUDL
New General Features (cont)
• Command archiving has been added. All
commands interactively typed, created by
dialogs or menu picks, or read from a
CINPUT file are now recorded in the
GTSTRUDL database. This will allow you
to re-create a command sequence from a
SAVE (.gts) file. Several new ARCHIVE
commands are shown on the next slide.
GTSTRUDL
New General Features (cont)
• New ARCHIVE commands:
PRINT (ARCHIVED) COMMANDS (‘filename’)
ARCHIVE (COMMANDS) OFF
ARCHIVE (COMMANDS) ON
DELETE COMMAND (ARCHIVE)
GTSTRUDL
New General Features (cont)
• A new special-purpose independent loading
command, FORM NOTIONAL LOAD, has been
implemented. The FORM NOTIONAL LOAD
provides for the automatic creation of an
independent static notional load condition in
accordance with the Direct Analysis Method of the
2005 AISC 13th Edition Specifications for
Structural Steel Buildings. The command format
is shown on the next slide.
GTSTRUDL
New General Features (cont)
i NL 
FORM NOTIONAL (LOAD) 

'a
'
 NL 
X 
 
from specs GRAVITY (AXIS) Y  Z 
 
X 
 
NLDIR Y  NLF v NL (JOINTS list J )
Z 
 
i3 
i1 
i 2 
from specs = FROM   v1 (   v 2   v3 ...
'a1'
'a 2 '
'a 3'
i n 
  vn )
'a n '
GTSTRUDL
New General Features (cont)
• A new command has been implemented to
locate duplicate members and if desired,
remove the duplicate members from the
model. The new LOCATE DUPLICATE
MEMBER command is shown on the next
slide.
GTSTRUDL
New General Features (cont)
LOCATE DUPLICATE MEMBERS order -
ADD LOADS

((AND) REMOVE ( 
) FORCE (REMOVAL)
(MEMBER list )
 DISREGARD (INCIDENCE) (ORDER)

RESPECT
(INCIDENCE)
(ORDER)


order  
GTSTRUDL
New General Features (cont)
• The SET ELEMENTS HASHED command has
been moved to release status. This command will
significantly improve the processing time required
to read large input (.gti) files.
• The DEAD LOAD and SELF WEIGHT
commands will now issue a warning message
which identifies members with DENSITY = 0.0 .
• A warning message is now issued when
MEMBER RELEASES have been specified for a
member but no release data have been given.
GTSTRUDL
New General Features (cont)
• A new command, ACTIVE SOLVER, has
been implemented with the following
syntax:
GTSES



ACTIVE SOLVER GT64M

STANDARD 


The purpose of this command is to facilitate
the integration of the new high performance
solvers when static and dynamic analyses
are executed in the same job.
GTSTRUDL
New Features – GTSTRUDL Output Window
• Two additional selection modes have been
added to the Text Output window. The Edit
menu has been changed to reflect these new
modes. The selection modes are further
described on the next slides. Once a
selection has been made, the selection mode
can be changed with the Edit menu without
losing the selection.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
Version 29.1
Version 30
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• The Data Mode with Tabbed Columns
makes it much easier for copying selected
output columns and insertion in
spreadsheets. The Blocked Text Mode
allows you to select a block of text for
insertion in other documents respecting the
spaces in the output.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• An example of selecting in Data Mode with
tabbed columns is shown below:
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• A new Form Notional
Loads option has been
added under the
Modeling pulldown
Loads option. The
new Form Notional
Loads dialog is shown
on the next slide.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• New Form Notional
Loads dialog:
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• The Response Spectrum Load dialog under
the Dynamic option of the Loads option
under the Modeling pulldown has been
modified to allow the user the specify either
Rigid or Periodic Response Scale Factors
according to the Gupta Method. The
revised dialog is shown on the next slide.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
New Rigid and Periodic
Modal Response Scale
Factors
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• The new Algebraic (ALG) Modal
Combination method has been added to the
Compute Dynamic and List Dynamic
dialogs as shown on the next slide.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• The following changes have been added to the Steel
Design dialogs:
– Steel grades for structural tubes and pipes have been
added to the Parameters dialog for the ASD9 code.
– Steel grades for pipes have been added to the
Parameters dialog for the APIWSD20 and APILRFD1
codes.
– Parameters for the AISC13 code have been added to the
Parameters dialog.
– The Steel Design Wizard has been updated for the
AISC13 code.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• Step 5 of the Steel Design Wizard has been modified to
account for the new Section specification option which has
been added to the SELECT and Check commands. This
option allows the user to specify the maximum forces or
moments section locations to be added to the user specified
section locations. This new Section option also allows the
user to create a single section point which contains the
maximum axial, shear in Y and Z directions, and moments
in X, Y, and Z directions. The revised Step 5 of the Steel
Design Wizard dialog is shown on the next slide.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
• The Steel code check datasheet is now
available for Trace values of 1, 2 and 3.
• The Help Menu has been modified with the
Reference Manual Documentation more
fully explained so users have a better
understanding of the contents of the various
volumes of the Reference Manuals. The
modified Help pulldown is shown on the
next slide.
GTSTRUDL
New Features – GTSTRUDL Output Window
(cont)
GTSTRUDL
New Features – Model Wizard
• The Model Wizard now writes a GTSTRUDL
input file in the current Working Directory with a
name determined by the model type, i.e.
“CircularTankWizard.gti”. This results in faster
processing times for large models and
automatically keeps a copy of the created input file
in your Working Directory. The model name is
fixed, and will be overwritten with no warning
each time that model type is used, so rename the
created input file if you want to keep it.
GTSTRUDL
New Features – Model Wizard (cont)
• The Model Wizard is now version dependent so that
installation of new versions of GTSTRUDL will not affect
previous installations.
• The Circular Plate Wizard now includes a changeable
length unit for the thickness.
• The Plane Frame and Space Frame Wizards now allow you
to specify all prismatic properties such as AX, AY, AZ, IX,
IY, IZ ,etc. Previously, the Plane Frame Wizard permitted
only AX, IZ, and SZ while the Space Frame Wizard did
not allow you to specify any prismatic properties. The new
prismatic property options in the Space Frame Wizard are
shown on the next slide.
GTSTRUDL
New Features – Model Wizard (cont)
GTSTRUDL
New Features – Nonlinear
• Nonlinear static analysis has been extended to write
analysis results to external results in order to be
consistent with the storage of linear static analysis
results and dynamic analysis results on such files.
Now, if a nonlinear static analysis is executed in the
same job with linear static analysis and/or dynamic
analysis for which results are stored on external files,
the post-processing of all analysis results, including
the nonlinear static analysis results, will be consistent,
allowing the successful post-processing of all analysis
results.
GTSTRUDL
New Features - Offshore
• The computation of chord SCF values for fatigue
analysis has been improved. In earlier versions,
excessively conservative chord SCF values were
computed by requiring that any chord SCF had to
be no less than the maximum corresponding brace
SCF from all braces connected to the chord. This
requirement is not necessary and has been
removed. This feature was released in Version
29.2 and is reported here also.
GTSTRUDL
New Features – Offshore (cont)
• The fatigue analysis type options of the
PERFORM FATIGUE ANALYSIS
command have been expanded to include a
DETERMINISTIC method in addition to
the PSD and DISCRETE wave spectrum
methods.
GTSTRUDL
New Features – Offshore (cont)
• The offshore fatigue analysis feature has
been enhanced with the addition of the
COMPUTE FATIGUE LJF EFFECTS
command, which performs an analysis
whereby the stiffness characteristics of
fatigue brace members at selected joints are
modified to reflect the flexibility of typical
brace-to-chord welded connections.
GTSTRUDL
New Features – Steel Design
• A new AISC 13th Edition has been implemented as a prerelease
feature. This new code, AISC13, may be used to select or check any
of the following shapes:
Design for bi-axial bending, axial, and torsional forces:
I shapes
Channels
Single Angles
Round HSS (Pipes)
Rectangular and Square HSS (Structural Tubes)
Design for bi-axial bending and axial forces:
Tees
Double Angles
Round Bars
Square Bars
Rectangular Bars
GTSTRUDL
New Features – Steel Design (cont)
• The ANSI/AISC N690-06, specification for safety-related
steel structures for nuclear facilities has been added as a
prerelease feature. This code is based on the AISC steel
construction manual, Thirteenth Edition specification with
a few modifications. Both LRFD (load and resistance
factor design) and the ASD (allowable stress design)
method of the AISC Thirteenth Edition are applicable.
Applicable cross-sections are I shapes, Channel, Single
Angles, Tees, Double Angles, Round HSS (Pipes),
Rectangular and Square HSS (Structural Tubes), Solid
Round Bars, Solid Rectangular and Square Bars.
Additional documentation is available in the Section 1.4 of
the AISC13 code.
GTSTRUDL
New Features – Steel Design (cont)
• New error checking has been added into the
steel design Parameter command. User
specified parameter values are now checked
for correctness. Alphanumeric parameter
values are checked against accepted values
and if the specified value is incorrect, an
error message is given and the scan mode is
set. Real parameter values are checked for
negative and zero values.
GTSTRUDL
New Features – Steel Design (cont)
• Efficiency improvements have been
implemented into the steel design SELECT
and CHECK commands. The time required
to perform a code check or design for
models with large numbers of members and
loadings has been reduced dramatically.
An example of the reduction in time is
shown on the next slide.
GTSTRUDL
New Features – Steel Design (cont)
• Model Description: 11,681 joints, 19,086
members, 31 design loading conditions
Time to Select 19,086 members with 3
sections per member:
Version 29.2 and earlier - 247 minutes
Version 30
- 30 minutes
GTSTRUDL
New Features – Steel Design (cont)
• The STEELGRD Parameter now accepts ASTM
steel grades shown in Table 1, Page 1-7 of the
AISC Manual of Steel Construction, Allowable
Stress Design Ninth Edition for pipe and structural
tube cross-sections. Note that the ASTM steel
grades shown in the Table 3, Page 1-92 for pipes
and structural tubes are now available in
GTSTRUDL.
GTSTRUDL
New Features – Steel Design (cont)
• A new Section specification option has been added
to the SELECT and CHECK commands. The
PLUS option allows the user to specify that
maximum forces or moments section locations be
automatically added to the user specified section
locations. The ONLY option allows the user to
specify that a single section point which contains
the maximum axial, shear in Y and Z directions,
and moments in X, Y, and Z directions be used for
selection or checking.
GTSTRUDL
New Features – Steel Design (cont)
• Examples of the new Section specification options are
shown below:
SELECT MEMBERS 1 TO 5 PLUS MAXIMUM ALL
The PLUS MAXIMUM ALL option will add sections to
the user specified sections where the maximum FX, FY,
FZ, MX, MY, and MZ forces and moments are located.
SELECT MEMBERS 1 TO 5 ONLY MAXIMUM ALL
The ONLY MAXIMUM ALL option will use the
maximum forces and moments for the member design.
GTSTRUDL
New Features – Steel Design (cont)
• The EC3 code check for pipe cross-sections
will now check Equations 5.5.3, 5.5.4(1), or
5.5.4(3). Previously, the EC3 code check
for pipes did not check these equations.
GTSTRUDL
New Features – Steel Design (cont)
• Weld design will now allow the user to
suppress the following CN.58 warning
message:
**** STRUDL WARNING CN.58 - STEELGRADE HAS NOT BEEN
SPECIFIED FOR MEMBER 1 AT JOINT 1
To suppress the above warning message, specify a value of ‘NO’ for the
parameter ‘WarnMess’ as shown below:
PARAMETER
WarnMess
NO
ALL
CHECK WELD JOINT 1
GTSTRUDL
New Features – Steel Tables
• The following new Tables from the AISC Thirteenth
Edition have been added to GTSTRUDL:
W-AISC13
M/S/HP13
C-AISC13
L-ALL-13
L-EQ-13
L-UN-13
WTAISC13
RecHSS13
RdHSS13
2L-ALL13
2L-EQ-13
2L-LL-13
2L-SL-13
WBEAM-13
WCOL-13
W shapes
M, S, and HP
Channel C and MC shapes
Single angles
Equal leg single angles
Unequal leg single angles
Tee WT, MT, and ST shapes AISC 13th Edition
Rectangular and square HSS
Round HSS
Double angles
Equal legs double angles
Long legs back-to-back double angles
Short legs back-to-back double angles
W shapes commonly used as beams
W shapes commonly used as columns
GTSTRUDL
New Features – Utility Programs
• A new option (ProfileMap.txt) has been
added for mapping profile names in a CIS2
file into GTSTRUDL, where users may
create a mapping file for profiles not in the
AISC standard names file.
See your installation directory\CIS2\Readme.txt
for more information.
GTSTRUDL
New Features - GTMenu
• A new option to the Edit pulldown has been
added which will allow you to Refine a
Finite Element mesh by
– Subdividing the elements uniformly or nonuniformly
– Changing the elements to a higher order
element ( i.e. a 4 node element automatically
changed to an 8 node element)
GTSTRUDL
New Features – GTMenu (cont)
• New Refine Finite Element Mesh option in
Edit pulldown
GTSTRUDL
New Refine FE Mesh dialog
Uniform Subdivision with
each original element
subdivided uniformly in
each direction (up to 10
times in each direction)
Non-uniform subdivision
OR
Change to a higher order element
GTSTRUDL
Mesh before refinement
(Original Mesh)
Mesh after refinement
(each element subdivided into a
2x2 grid)
GTSTRUDL
Refinement by
changing to a Higher
Order (8 node) element
GTSTRUDL
3D solid elements before refinement
3D solid elements after refinement
with each original element subdivided
into 8 elements
GTSTRUDL
New Features – GTMenu (cont)
• The contents of a selected Group or All
Groups may now be output to the Inquire
Output Window as shown on the next slide.
This feature was requested by the Users
Group.
GTSTRUDL
New Inquire
function
Output from New
Inquire
GTSTRUDL
New Features – GTMenu (cont)
• You may now output and display
information regarding Rigid Bodies and
Superelements.
GTSTRUDL
New Features – GTMenu (cont)
• New Rigid Body Display
dialog options:
– Inquire function to output
master and slave joint
information
– Display function to display
rigid body information
GTSTRUDL
Rigid Body Display with Legend on Screen
Indicating Master and Slave Joints with Lines
from Master to Slave Joints
GTSTRUDL
New Features – GTMenu (cont)
• New SuperElement
Display dialog options:
– Inquire function to
output boundary nodes
and internal elements
– Display function to
display boundary nodes
and mark internal
elements
GTSTRUDL
New Features – GTMenu (cont)
GTSTRUDL
New Features – GTMenu (cont)
• A separate dialog has been created for
setting Attribute colors. The old Colors
dialog has been renamed as setting Item
Colors as shown below:
GTSTRUDL
New Features – GTMenu (cont)
• The Item Colors dialog is shown on the next
slide. Note that the Color Palette has been
expanded to now contain 64 colors.
Also note that buttons now exist which will
reset the colors for a black or white
background in the Graphics Window.
GTSTRUDL
New Features – GTMenu (cont)
New color palette
GTSTRUDL
New Features – GTMenu (cont)
• The new Attributes Colors dialog has options
which now allow you to set the color for the
following functions:
–
–
–
–
–
Three color option of Redraw Solid
Member Releases annotation
Deselection mark
Deformed Structure
Force/Moment Diagram and Envelopes
The new dialog is shown on the next slide.
GTSTRUDL
New Features – GTMenu (cont)
New Attribute Colors dialog
GTSTRUDL
New Features – GTMenu (cont)
• A new option has been added to the Display
Model dialog which will draw each Table
section using a different color (up to 64
different colors). These colors are assigned
arbitrarily by default. The revised Display
Model dialog is shown on the next slide.
GTSTRUDL
New Features – GTMenu (cont)
• New Display Model dialog
New Color by Section option
An example is shown on the next slide
GTSTRUDL
Color by Section Example with each section assigned a color.
GTSTRUDL
New Features – GTMenu (cont)
• A Property Legend appears
in a separate dialog box.
You may place the legend on
the screen. You may also
select individual sections and
they will be displayed in
color with an Individual or
Cumulative legend on the
screen as shown on the next
slide.
GTSTRUDL
Cumulative Selection of Profiles to be displayed with legend on screen
GTSTRUDL
New Features – GTMenu (cont)
• You may also assign a specific color to a
profile when you Create the Member
Property group. An example of the new
Member Property dialog is shown on the
next slide.
GTSTRUDL
New Color option
GTSTRUDL
New Features – GTMenu (cont)
• You may also select
from the Options
pulldown for Redraw
Solid an option which
will result in Color by
Section being always
performed when you
select Redraw Solid.
GTSTRUDL
New Features – GTMenu (cont)
• A new option has been added to display steel design parameters. This
new option is available under the Display pulldown as shown below:
The new Display Parameters dialog is shown on the next slide and an
example is then shown on another slide.
GTSTRUDL
Display Parameters using Symbols on Screen
with Legend either on Screen or in List Box
Label Attributes or Parameter Values on Screen
GTSTRUDL
Steel Grade Design Parameters
Label on the Members Option
GTSTRUDL
KY Parameters Displayed with
Legend in List Box on Side
GTSTRUDL
Parameters on Screen Using Legend
GTSTRUDL
New Features – GTMenu (cont)
• A new Inquire Query function has been
added to Display Model information such as
the number of joints, members, elements,
etc:
GTSTRUDL
New Features – GTMenu (cont)
•
Pop-up dialog output from
Inquire - Query
•
You can also output this
information in message area
using Hotkey ctrl+q
GTSTRUDL
New Features – GTMenu (cont)
• Member releases are now positioned away from
the ends of the member.
• The legend for support springs now identifies the
spring directions.
• When an item is deleted, its name is now removed
from any group lists.
• Character sizes have been adjusted to
accommodate higher resolution and wide screen
displays.
GTSTRUDL
New Features – GTMenu (cont)
• The Default Settings options are also now available under
the Display pulldown.
• A member label can now be placed on very short members.
• A horizontal scroll bar has been added to the Loads and
Section Properties dialogs which will allow you to scroll
horizontal to see all of the load description or section
property data.
• The graphical labeling of plastic hinge status has been
improved.
GTSTRUDL
New Features – GTMenu (cont)
• The Rotate Menu now reflects the current structure
rotation.
• When a member with design parameters is split, the split
members now have the design parameters of the original
member. The input file created by GTMenu will now
contain the design parameters for the members newly
created by the split. In addition, the Parameters in the
input file are now compressed with a range of members ( 1
TO 5) being specified on a single line instead of each
member being listed (1 2 3 4 5).
GTSTRUDL
New Features – GTMenu (cont)
• When File->Save Model is selected and the user elects to
overwrite an existing save (.gts) file, the existing save file
is renamed to "GTMenuBackup.gts" instead of being
deleted as it was previously. The current data base is then
saved into the specified file name. When the save process
is completed, the backup file (GTMenuBackup.gts) is then
deleted. This prevents the loss of the data in the original
save file if the save process does not complete properly.
Note that the new save model process requires enough disk
space for two copies of the save file (the newly written
save file and GTMenuBackup.gts) until the save process is
completed.
GTSTRUDL
New Feature Advanced Multi-processor 32 bit and 64 bit
Solvers
• New Standalone static analysis solvers now
take advantage of multi-cores ( i.e. Core 2
Duo and Core 2 Quad) processors.
• In addition, these new solvers take
advantage of the large address space
available on Vista 64 bit operating system.
GTSTRUDL
New Features – Multi-processor solvers (cont)
• After assembling the equations, execute the
standalone GT64M solver by clicking on
the Windows START button, then clicking
on All Programs, and then selecting
GTStrudl30 followed by selecting Standalone Solvers and then selecting either
GT64M 32 or 64 bit Multi-processor
Stiffness Analysis as shown on the next
slide.
GTSTRUDL
New Features – Multi-processor solvers (cont)
GTSTRUDL
New Features – Multi-processor solvers (cont)
• An example of the performance of various
solvers is shown on the next slide for the
following example:
12,000 joints with 6 degrees-of-freedom per
joint = 69,300 total DOFs,
Half band width = 387 joints
1 loading
GTSTRUDL
New Features – Multi-processor solvers (cont)
• Various solver statistics:
Standard Stiffness Analysis Solver 690 Seconds
GTSES
418 Seconds
GT64M with 1 processor
29 Seconds
GT64M with 4 processors
16 Seconds
GTSTRUDL
New Features – Multi-processor solvers (cont)
• The STIFFNESS ANALYSIS command has also been
modified to use the GT64M solver. The modified
STIFFNESS ANALYSIS command is shown on the next
slide.
• When the GT64M option is used on the STIFFNESS
ANALYSIS command, only one processor is used but the
solver takes full advantage of the 64 bit virtual address
space if executed on a 64 bit operating system. The OOC
(out-of-core) option which is also available using the split
solver is particularly useful when running on a 32 bit
operating system where the virtual address space is
limited.
GTSTRUDL
New Features – Multi-processor solvers (cont)
• Modified STIFFNESS ANALYSIS
command:
 NJP i

STIFFNESS (ANALYSIS) ( 
) WITHOUT
REDUCE
(BAND)


GTSES

(
) (reform)
GT64M (OOC) 
GTSTRUDL
New Base Plate Wizard
• A new Base Plate
Wizard is now available
under the Modeling
pulldown:
GTSTRUDL
New Base Plate Wizard (cont)
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A base plate model consists of the plate, attachments, anchors, bearing surface
and stiffeners. The model may be adjusted with constraints and cutouts.
Up to 10 attachments per plate
AISC Wide Flanges, Tubes, Channels, Tees, Angles, and Pipes are
included
User defined shapes can be used
Attachments may be rotated in-plane
Attachments may be modeled as in-plane RIGID SOLID or as FE
extension
Anchors may be modeled as elastic or NL springs, or as frame members.
Bearing surface stiffness may be specified as Fc’, E, or F/L**3
Stiffeners may be rectangular, trapezoidal or triangular
Constraints allow extra boundary conditions or specified node locations
Cutouts allow modeling of notches and skewed plates
Base plate models made be saved and recovered using .gtbp format
Results (anchor forces, bearing surface pressure, plate stresses and
displacements) may be viewed in the BPW
GTSTRUDL
GTSTRUDL
New Base Plate Wizard (cont)
GTSTRUDL
Interfaces to Other Programs
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AutoCAD – interfaces via DXF converter
Intergraph’s Frameworks
Intergraph’s SmartPlant 3D – CIS/2
Structural Desktop by Structural Desktop,
Inc
• Tekla Structures
• Other CAD programs which support DXF
or CIS/2
GTSTRUDL
New Features – Version 30.1
• Steel Design by AISC13 will be brought to
release status including nuclear code N69094.
• Nonlinear analysis solutions will be
available using the GTSES solver.
• Add ACI 318-05 design for beams and
columns with specified dimensions.
(GIVEN B and H).
GTSTRUDL
Version 31
GTSTRUDL
Version 31 – Base Plate
• Add ANCHOR commands to BASE Plate
module – modeling and capacity check.
GTSTRUDL
Version 31- DBX
• Add WRITE CODE CHECK RESULTS.
GTSTRUDL
Version 31- Dynamic Analysis
• The GTSELANCZOS sparse equation Eigenvalue analysis
procedure will be enhanced as a stand-alone program
similar to the stand-alone GTSES static analysis equation
solver in Version 29.1. This will enable considerably
larger Eigenvalue analysis jobs to be solved even more
efficiently than the present implementation of the
GTSELanczos Eigenvalue analysis solver.
In conjunction with this enhancement, the entire mode
superposition method of analysis will be extended to
support the external file strategy for storing and managing
dynamic analysis results.
• Computation of minimum seismic load according to latest
IBC provisions.
GTSTRUDL
Version 31
Dynamic Analysis (cont)
• GT64M sparse eigenvalue and direct
integration solvers
GTSTRUDL
Version 31- Finite Elements
• A new eight node solid element with incompatible
modes will be implemented. This element will
offer substantially improved accuracy over the
existing eight node solid element for structures
with bending and shear deformation. The element
will include all of the features currently available
with the current eight node solid (IPSL) element.
GTSTRUDL
Version 31- Finite Elements (cont)
• New eight node six degree of freedom flat plate
element with the following capabilities:
– Surface, temperature, and body forces
– Lumped and Consistent Mass matrix for
dynamic analysis
– Geometric stiffness for linear buckling analysis
– Standard finite element output – LIST,
CALCULATE AVERAGE
– Integration into GTMenu (geometry, loads,
input file, contour results)
GTSTRUDL
Version 31- General
• Add command to PRINT BETA ANGLES list (in addition
to the current PRINT MEMBER CONSTANTS
command).
• Add sorting and limits to LIST CODE CHECK RESULTS
• PRINT JOINT CONNECTIVITY and form a Group of the
members and elements incident on joints in a list.
• PRINT INCIDENT JOINTSMEMBERS/ELEMENTS
command to print the joints incident to a list and create a
GROUP.
• When second and subsequent JOINT LOADS are applied
to a joint in a loading condition, the WARNING will
change to INFO.
GTSTRUDL
Version 31- General (cont)
• LOCATE FLOATING JOINTS ( (AND) -REMOVE )
Only joints that are not attached to any member, finite element,
nonlinear spring or rigid body will be considered as possible “floating”
joints. If a joint is used as a BETA REFERENCE JOINT it will not be
considered “floating”.
• LOCATE DUPLICATE ELEMENTS ( (AND) REMOVE (ADD
LOADS) ).
Similar to LOCATE DUPLICATE MEMBERS.
• LOCATE INTERSECTING MEMBERS list TOL v
Detect members within a tolerance (TOL) of each other to locate
“crossing” members that may look correct graphically but should
actually have a common joint at their intersection.
• Add finite elements to LOCATE INTERFERENCE JOINTS.
GTSTRUDL
Version 31- General (cont)
• Add the ability to write or change support status as part of
the CALCULATE SOIL SPRINGS command. Currently,
user must have already specified joints as supports and
joint releases.
GTSTRUDL
Version 31 - General (cont)
•
AREA LOAD enhancements
Check for interference joints and intersecting members in plane before
attempting to locate bounded areas.
Improve error reporting:
List of 0.0 length members
Start joint for "illegal configuration" to help with debugging.
Add IGNORE NONORTHOGONAL MEMBERS option.
Ignore members not within specified angle of global axis so bracing doesn’t
need to be inactivated.
PLOT option - create a Scope Editor file like the dialog display with shaded
bounded areas.
GTSTRUDL
Version 31 - GTMenu
• Add Undo to remove duplicate joints dialog
to avoid corrupting model due to using a
tolerance which was too large.
• Add the ability to automatically split
members which are in the model when the
finite element mesh is refined.
• Display additional steel design parameters
based on User input.
GTSTRUDL
Version 31 – GTMenu (cont)
• Implement automatic mesh algorithm for
2D elements to mesh structure using only
structure outline including internal
boundaries and point constraints.
• Ability to click on a member and have a
graphical summary of the results on just that
member in a separate Window that can be
printed.
GTSTRUDL
Version 31 – GTMenu (cont)
• A new Property Group can be added when
you are creating members.
• Finite elements will be labeled closer to
their centroid.
• Label duplicate joints, members, or
elements on screen.
• Label floating joints on screen.
GTSTRUDL
Version 31
GTSTRUDL Output Window
• Track Warning messages like Error
messages. Pop-up a dialog with Error and
Warning count. List Error or Warning
output lines in a dialog, click on an Error or
Warning and the output cursor moves to that
line in the output listing.
• Add Groups to Deletions dialog.
GTSTRUDL
Version 31– Nonlinear Analysis
• The nonlinear member end connection and
plastic hinge models will be supported by
nonlinear dynamic analysis.
GTSTRUDL
Version 31 – Offshore
• Add API 2A-WSD 21st edition code
GTSTRUDL
Version 31- Reinforced Concrete
• The DESIGN SLAB command will be
brought to release status.
GTSTRUDL
Version 31 - Steel Design
• Add Torsion and Warping design. This
would be applicable to AISC ASD9 and
AISC13 codes.
• Add Eurocode EC3- 2005 design code
• Add 2007 ASME Boiler and Pressure
Vessel Code, Subsection NF.
• Add new parameter called ‘DesLoads’
which can be used to specify design loads.
GTSTRUDL
Version 31
New Features – Steel Design
• Steel Design Dialogs
• Parameter Dialog – Add new Torsion and
Warping parameters to parameter dialog.
GTSTRUDL
Version 31
New Features – Steel Design
• Displacement Constraint Design Procedure
will be available to select members to
satisfy joint displacement constraints. The
new GTSES external file solver will be
added as an option.
GTSTRUDL
Version 31
New Features – Steel Design
• Displacement Constraint Design Procedure
will be available to select members to
satisfy joint displacement constraints. The
new GTSES external file solver will be
added as an option.
GTSTRUDL
Future Enhancements
• Multiple windows to allow for result display in a separate
window than the model display.
• Graphically specify joints and elements to be used with
LIST SUM FORCES command.
• Graphically specify Area Loads in GTMenu.
GTSTRUDL
Future Enhancements (cont)
• Add a Display
Options capability
to the Principal
Vector display for
principal stress
vectors similar to
the one shown here
for contouring.
GTSTRUDL
Future Enhancements (cont)
• Add the option to Split Members to
interpolate eccentricities between the start
and end of the split members.
GTSTRUDL
Future Enhancements (cont)
• Addition of the following items to the input file
created by GTMenu:
– Dynamic Loadings
– Eigen Parameters
– Dynamic Modal Damping Data
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Nonlinear Effects
Nonlinear Spring Properties
Nonlinear Solution Parameters
Cable Network Data
GTSTRUDL
Your assistance is needed to help us improve
GTSTRUDL in your Committee meetings :
• Please provide us with a prioritized list of the
features that you would like to see. Please be
specific especially when requesting model
wizard, design codes (which codes and which
cross sections) or datasheet requests.
Sketches of wizards, output, and graphical displays
help us tremendously.