gtstrudl - 3DR Engineering Software

GTSTRUDL
GTSTRUDL Europe User Group Meeting 2010
GTSTRUDL 31 and Beyond
New and Expected Future
Features and Enhancements
Leroy Z. Emkin , Ph.D., P.E., F.ASCE
Founder and Co-Director
Computer Aided Structural Engineering Center
Georgia Institute of Technology
Atlanta, Georgia 30332-0355 U.S.A.
Tel: +1-404-8942260
Fax: +1-404-8948014
email: casec@ce.gatech.edu
Web Page: www.gtstrudl.gatech.edu
GTSTRUDL
Presentation Outline
•
•
•
•
Status of GTSTRUDL 31
New Features in GTSTRUDL 31
Features planned for GTSTRUDL 32
Beyond GTSTRUDL 32
GTSTRUDL
Status of GTSTRUDL 31
• Nuclear power/defense FEA software
QA/QC procedures have been completed.
• Documentation is completed.
• GTSTRUDL 31 has been released
(release date: August 2010)
GTSTRUDL
GTSTRUDL 31
The GTSTRUDL 31 Release Guide, Volume 1
includes descriptions of new features,
enhancements, and performance improvements.
GTSTRUDL
DBX (Data Base exchange)
• The WRITE ELEMENTS ATTRIBUTES
command now reports the number of
elements not included in the generated DBX
file due to missing element properties.
Previously, only the total number of
complete element attributes written was
reported.
GTSTRUDL
Dynamics
• The LIST DYNAMIC PARTICIPATION
FACTORS Command was given the ability
to output the mass participation factors in a
tabulated form sorted by mode, by one of
the global directions, or by each one of the
global directions. By default, the output will
only show active modes. However, the user
can specify if the output should include all
modes. The command can also output only
totals in each global direction.
GTSTRUDL
Dynamics (continued)
• The ACTIVE/INACTIVE MODES
Command has been enhanced to
automatically Activate/Inactivate modes
according to minimum target of mass
participation factors given for each global
direction.
An example of the enhanced LIST
DYNAMIC PARTICIPATION FACTOR
AND INACTIVE MODE commands is
shown on the next slide.
GTSTRUDL
GTSTRUDL
Viscous Damper Element (dash pot)
The viscous damper element (dash pot) has been moved to release
status. The viscous damper element may be used for linear and
nonlinear dynamic analysis by the direct integration procedure. The
commands related to the viscous damper element are shown below
and described in Section 2.4.3.7 of Volume 3 of the User Reference
Manual:
DAMPER ELEMENT DATA, described in Section 2.4.3.7.1.
PRINT DAMPER ELEMENT DATA, described in Section 2.4.3.7.2.
DELETE DAMPER ELEMENT DATA, described in Section 2.4.3.7.3.
GTSTRUDL
General
• The efficiency of the LIST MAXIMUM JOINT
DISPLACEMENTS and LIST MAXIMUM
REACTIONS commands has been dramatically
improved when the analysis results are stored on
external save files using the GTSES/GT64M
sparse equation solvers. For jobs consisting of
large models with tens and even hundreds of
loading conditions, the time to execute these
commands has decreased from an hour or more for
the largest jobs to a few minutes at most.
GTSTRUDL
General (continued)
• The MATERIAL command now respects the EXISTING
MEMBERS ONLY and the EXISTING ELEMENTS
ONLY options for a member list. Previously, the ONLY
specification was ignored and the material properties (E,
DENSITY, etc.) were assigned to all members and
elements in the EXISTING list.
Example:
MATERIAL CONCRETE ELEMENTS EXISTING ELEMENTS ONLY
GTSTRUDL
General (continued)
• The EXISTING option for lists now works with load
names. Previously, only LOAD LIST would recognize
EXISTING, although the options of BUT and PLUS were
not recognized, but no other load name list recognized the
EXISTING option.
Example:
PRINT LOAD DATA LOADS EXISTING BUT 100
GTSTRUDL
General (continued)
• The CALCULATE PRESSURE command has been
improved by the addition of support for analysis results
stored in files, created by the execution of linear and
nonlinear static analyses using the GTSES/GT64M sparse
equation solvers.
• The COUTPUT command will now assume COUTPUT
standard if an invalid file name is specified. An invalid file
name can be due to illegal characters in the name, or
restrictive permissions on the folder where the file is
attempting to open.
GTSTRUDL
GTMenu
• The Split Member option now allows a member
list to be built using all settings in the Mode Bar.
Previously, only the Hit and List modes were
available.
• When entering GTMenu, the structure is now
drawn only once. For large models, multiple
draws slowed down the entry into GTMenu.
• A Current Group must now be selected before
Current Group options are made active.
GTSTRUDL
GTMenu (continued)
• A message is now given when Check Model
results are written to a file.
• The efficiency of Color by Section has been
improved for large models.
• The cursor now displays as an hourglass
when the structure is being redrawn.
GTSTRUDL
GTMenu (continued)
• When entering GTMenu from command mode
with members which have pipe properties, the
property group for a pipe section is now named
according to the PIPE dimensions: Outer Diameter
x THIckness. The name is generated in inches if
the units are English, and the name is generated in
millimeters if the units are Metric.
• Also, for the Display Model Section Names, a pipe
descriptor will be used such as 660x25 for a pipe
with a 660 mm OD and a 25 mm wall thickness.
The Display Model Color by Section will use the
same descriptor. Examples on next slides.
GTSTRUDL
Display Model
Section Names for
Pipes
GTSTRUDL
Display Model
Color by Section with
Section Names for Pipes
GTSTRUDL
GTMenu (continued)
• The Color by Section Legends (both the
scrolling box and the graphics screen
legend) have been enhanced to fully display
the specifications of a variable section: that
is, the length and type of each segment (in
current units where applicable) are given.
An example of an offshore structure is
shown on the next slide.
GTSTRUDL
Sample Property Legend for
Variable Members
GTSTRUDL
GTSTRUDL Output Window
• The Deletions
dialog (Modeling –
Data Management –
Deletions) has been
expanded to include
data for finite
elements and
groups.
GTSTRUDL
Output Window (cont)
• In the Area Load
dialog, Individual
buttons for ‘One way
X’ and ‘One way Z’
have been added. The
Custom option is the
old method, where the
user was required to
enter at least one value
in the X or Z box.
GTSTRUDL
Output Window (cont)
• The 'All' option has been removed from the
File -> Save menu. The 'All' option
activated the first three Save options only,
which was confusing to some users. Now,
click on each option separately if more than
one type of Save is desired.
GTSTRUDL
Output Window (cont)
• In the Command window (Text Mode),
when the Paste buffer is more than 10 lines,
only the first 10 lines of the buffer are
displayed for verification. Previously, all
lines in the Paste buffer were displayed,
which could result in a dialog where the Yes
and No buttons were off the screen for very
large Paste buffers.
GTSTRUDL
Output Window (cont)
• Example of
pasting input into
GTSTRUDL
Output Window
GTSTRUDL
Model Wizard
• The Continuous Beam Wizard has been enhanced to
include a Moving Load page and an Automatic Load
Combination page. In addition, the default support
condition at X = 0.0 will be pinned, instead of fixed.
Examples of the new dialogs are shown on the next
slide.
GTSTRUDL
Model Wizard (cont)
New Moving Load dialog
New Moving Load
Combination dialog
GTSTRUDL
Model Wizard (cont)
• The Vault/Rectangular Tank Wizard now
includes the option to add a top as shown in
the dialog below and on the next slide.
GTSTRUDL
Model Wizard (cont)
GTSTRUDL
Model Wizard (cont)
• You can now add
pressure to the top
and the sides of the
tank using the new
dialog shown. The
side pressure allows
you to model a
surcharge loading.
GTSTRUDL
Model Wizard (cont)
• The Plane Frame Wizard now includes new
bracing types:
– Inverted Chevron Braces with offsets and
eccentricities
– Left and right Diagonal braces with
eccentricities
– Knee braces
Examples of these new bracing types are shown
on the next slides
GTSTRUDL
Model Wizard (cont)
New Bracing dialog
GTSTRUDL
Chevron
Centered
Chevron
Eccentric
Chevron Inverted and
Eccentric
GTSTRUDL
Chevron with Offset
Chevron Inverted and
Offset
Diagonal with Left
Eccentric
GTSTRUDL
Model with Mixed
Bracing Types
Knee Braces
GTSTRUDL
Model Wizard (cont)
• Different properties
can be specified for
link beams
GTSTRUDL
Model Wizard (cont)
• Variable bracing
can be specified by
bay
GTSTRUDL
Model Wizard (cont)
• The Model Wizard now adds SET
ELEMENTS HASHED to all models with
more than 300 joints. Previously, only the
Vault and Space Frame Wizards added this
command. SET ELEMENTS HASHED
speeds up the processing of commands for
large input files.
GTSTRUDL
Nonlinear
• Support for nonlinear geometric behavior has been
implemented for the SBHQ, SBHQ6, SBHT, and
SBHT6 plate finite elements. The nonlinear
geometric behavior capability is designated for
these elements by the NONLINEAR EFFECTS
command in a manner identical to way it is done
for frame and truss members. This capability is
only available for the GTSES solver option.
GTSTRUDL
Nonlinear (cont)
• An example of accounting for the geometric
nonlinear behavior using these elements in a
pushover analysis on a square simply supported
plate with a uniform load is shown below:
Nonlinear Effects
Geometry elements 1 to 144
End
Active Solver GTSES
An example of a simply supported plate and its
response are shown on the next slide
GTSTRUDL
Nonlinear (cont)
Simply supported plate with
Plot of Pushover Analysis Results
uniform pressure
Nonlinear vertical displacement at center
GTSTRUDL
Nonlinear (cont)
• Nonlinear analysis has been extended to support the
GTSES sparse equation solver. The GTSES solver is
executed for nonlinear static analysis when the
NONLINEAR ANALYSIS GTSES command is given or
when the ACTIVE SOLVER GTSES command is given
prior to any NONLINEAR ANALYSIS commands. When
nonlinear analysis uses the GTSES solver, it also stores the
analysis results into files, rather than in memory. The
GTSES solver in conjunction with the storage of results in
files provide nonlinear static analysis with the ability to
solve significantly larger problems with much greater
speed and efficiency.
An example of the performance improvement using the
GTSES solver is shown on the next slide
GTSTRUDL
Nonlinear (cont)
•
Industrial Building Model
# of joints
# of members
# of active loads
# of DOFs
=
=
=
=
2900
6300
73
18000
Time for nonlinear analysis, GTSES
=
Time for nonlinear analysis, Standard (V30) =
14.0 min.
240.0 min.
Average Time/Loading, GTSES
Average Time/Loading, Standard (V30)
11.5 sec.
197.0 sec.
=
=
GTSTRUDL
Nonlinear (cont)
• The PERFORM PUSHOVER ANALYSIS command has
been enhanced with the addition of the GTSES option,
which indicates that the GTSES sparse equation solver
shall be used for the execution of the nonlinear analysis
steps of the pushover analysis procedure. The PERFORM
PUSHOVER ANALYSIS command also uses the GTSES
solver when the ACTIVE SOLVER GTSES command is
given prior to the PERFORM PUSHOVER ANALYSIS
command.
GTSTRUDL
Nonlinear (cont)
• The PERFORM CABLE PRESTRESS ANALYSIS
command has been enhanced with the addition of the
GTSES option, which indicates that the GTSES sparse
equation solver shall be used for the execution of the
nonlinear analysis steps of the cable prestress analysis
procedure. The PERFORM CABLE PRESTRESS
ANALYSIS command also uses the GTSES solver when
the ACTIVE SOLVER GTSES command is given prior to
the PERFORM CABLE PRESTRESS ANALYSIS
command.
GTSTRUDL
Offshore
• A new API Recommended Practice 2AWSD (RP 2A-WSD), Twenty-First Edition
steel design code for Basic and Hydrostatic
Pressure stresses check has been
implemented as a prerelease feature. This
new code, APIWSD21, may be used to
select or check Circular Hollow Sections
(Pipes).
GTSTRUDL
Offshore (cont)
• A new API Recommended Practice 2AWSD (RP 2A-WSD), Twenty-First Edition
steel design code for Punching Shear check
has been implemented as a prerelease
feature. This new code, APIWSD21, may
be used to check or design Circular Hollow
Sections (Pipes).
GTSTRUDL
Reinforced Concrete
• The ACI 318-05 reinforced concrete code
has been added. The command format is
METHOD ACI 318-05 (SEISMIC)
The ACI 318-05 code support all options
included with 318-89 including special
moment frame detailing according to
Chapter 21 if requested.
GTSTRUDL
Steel Design
• The steel design code AISC13, which is
based on the Steel Construction Manual
AISC Thirteenth Edition, is moved to
release status. The AISC13 code utilizes the
Load and Resistance Factor Design (LRFD)
techniques of the AISC Specification and
also the safety factor Ω has been
implemented for the Allowable Strength
Design (ASD).A summary of the features
are shown on the next slide.
GTSTRUDL
Steel Design (cont)
•
The AISC13 code of GTSTRUDL may be used to select or check any of the
following shapes:
Design for bi-axial bending and axial forces:
I shapes
Channels
Tees
Single Angles
Double Angles
Square Bars
Round Bars
Rectangular Bars
Design for bi-axial bending, axial, and torsional forces:
Round HSS (Pipes)
Rectangular and Square HSS (Structural Tubes)
GTSTRUDL
Steel Design (cont)
• A new ANSI/AISC N690, American
National Standard Specification for the
Design, Fabrication, and Erection of Steel
Safety-Related Structures for Nuclear
Facilities, 1994 Edition, has been
implemented as a released feature. This new
code, N690-94, may be used to select or
check any of the shapes on the next slide.
GTSTRUDL
Steel Design (cont)
• Design for axial force and bi-axial bending:
I shapes
Channels
Single Angles
Tees
Double Angles
Round Bars
Pipes
Square and Rectangular Bars
Structural Tubing
GTSTRUDL
Steel Design (cont)
• New ASME, Boiler and Pressure Vessel
Code, Section III, Rules for Construction of
Nuclear Power Plant Components. Division
I - Subsection NF Component Supports,
2004 and 2007 Editions with their
respective addenda, have been
implemented as released features. These
new codes, NF-2004 and NF-2007, may be
used to select or check any of the shapes on
the next slide.
GTSTRUDL
Steel Design (cont)
• Design for axial force and bi-axial bending:
I shapes
Channels
Single Angles
Tees
Double Angles
Round Bars
Pipes
Square and Rectangular Bars
Structural Tubing
GTSTRUDL
Steel Design (cont)
• Results of a steel code check or select using
the MAXIMUM ENVELOPE option of the
CHECK and SELECT commands are now
available in the code check results
datasheet, the view code check results in
GTMenu, and the LIST CODE CHECK
RESULTS command.
GTSTRUDL
Steel Design (cont)
• A new feature has been added to the steel design CHECK
and SELECT commands to check the user specified
parameters to see if they are valid for the requested design
code (i.e., AISC13, ASD9, EC3-2005, N690-94, NF-2007,
etc.).
This new feature has been implemented due to anticipating
that a user may take an existing model based on the ASD9
code and now modifying the model to perform a code
check based on the AISC13 code. This new feature starts
checking user specified parameters for the requested code
at the beginning of the CHECK or SELECT command. If
there is any user specified parameters that do not apply to
the specified design code, a warning message with a list of
parameters that are not applicable is printed.
GTSTRUDL
Steel Design (cont)
• A new Eurocode 3, EN 1993-1-1: 2005 (E)
steel design code has been implemented as a
prerelease feature. This new code, EC32005, may be used to select or check any of
the following shapes:
GTSTRUDL
Steel Design (cont)
Design for axial force and bi-axial bending:
I shapes
Circular Hollow Sections (Pipes)
Rectangular Hollow Sections (Structural Tube)
Solid Round Bars
Design for axial force only:
Single Angles
Double Angles
GTSTRUDL
Steel Tables and GTTABLE
• New Metric Tables from AISC Thirteenth
Edition have been added to GTSTRUDL.
• The GTTABLE commands have been
modified to accept long profile names.
Also, the GTTABLE output has been
modified to display both long and short
profile names.
GTSTRUDL
Utility Programs
• GTS2ACAD (GTSTRUDL to AutoCAD)
has been upgraded to version 4.2. Twodimensional elements with mid-side nodes
are now processed.
Elements with mid-side nodes now
processed are:
Triangles: LST, UTLQ1
Quads: IPQQ, IPCQ, IPQLQ1, IPQLQ2,
IPQLQ2B, IPQLQ3, IPQLQ4, IPBQQ
GTSTRUDL
Base Plate
• Metric units
“Millimeters” has been
added to the Plate tab.
• Attachment placement
offset can now be
specified from the plate
origin as well as the
plate center in the
Attachment dialog.
GTSTRUDL
Base Plate (cont)
• Attachments modeled
as FE extensions may
be loaded at the
extension end or at
the plate surface.
This is done in the
Add Attachment
dialog.
GTSTRUDL
Base Plate (cont)
• Comments in the generated .gti file have
been expanded.
• The BPW now prompts to save a .gtbp file
if changes to the plate have been made.
• Current unit display has been added to
dialogs that previously only had a bare edit
box. Current units display has also been
added to the results datasheets.
GTSTRUDL
Base Plate (cont)
• The AISC 9th Edition metric profile names
have been added as available attachments.
• When a .gtbp is read or saved, its name is
added to the BPW window title and the file
name is used as the default .gti file in the
GTSTRUDL Input File options dialog.
GTSTRUDL
Base Plate (cont)
• A ‘Print load data’
option has been
added to the Results
Summary dialog.
• A ‘Write to File’
option has been
added to the
individual result
datasheets.
GTSTRUDL
Base Plate (cont)
• Plate stresses now include principle stresses
S1, S2, Tmax and the Von Mises criteria.
Also, sorting options have been added to the
Plate Stress datasheet.
GTSTRUDL
Base Plate (cont)
• The Anchor Results datasheet now includes
options to organize anchor results by anchor
or by load.
Results ordered by
Anchor
Results ordered by
Load
GTSTRUDL
Base Plate (cont)
• The Plate Displacements datasheet now
offers two sorting options, by ‘Lift off’ (+Z
displacement) or by ‘Depress’ (-Z
displacement).
GTSTRUDL
Version 32
GTSTRUDL
Version 32 – Base Plate
• Add ANCHOR commands to BASE Plate
module.
– modeling and capacity check by ACI 318-05.
Commands can be user created or by the Base
Plate Wizard.
GTSTRUDL
Version 32- DBX
• Add WRITE CODE CHECK RESULTS.
GTSTRUDL
Version 32- Dynamic Analysis
• Implement the GT64M Lanczos eigenvalue analysis
method, which is a 64-bit, high-performance sparse
equation solution method.
• Implement a GTSES version of linear direct integration
(physical) transient analysis.
• Computation of minimum seismic load according to latest
IBC provisions.
GTSTRUDL
Version 32- 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 32- Finite Elements (cont)
• New eight node moderately thick 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 32- Finite Elements (cont)
• Implement local element coordinate system
results processing (text reports and
graphical display of stress contours) for
selected planar elements, in particular the
SBHQ and SBHT family of plate elements.
This is particularly convenient and useful
for structures formed by surfaces of
revolution.
GTSTRUDL
Version 32- 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 JOINTS MEMBERS/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 32- 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 32- 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.
• The AASHTO HL-93 truck will be added to the Moving
Load Generator.
• Add additional cross sections to the MEMBER
PROPERTIES command similar to the I-Shape and Pipe
cross sections for Tubes, Channels,…etc.
• A new option will be added to the PRINT MEMBER
PROPERTIES command to print all cross-sectional
property information.
GTSTRUDL
Version 32 - 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 32 - 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. The new
dialog is shown on the next slide.
GTSTRUDL
New option to split
members while
refining FE mesh
GTSTRUDL
Version 32 – GTMenu (cont)
• Display additional steel design parameters:
LX, FRLX, FRLY, FRLZ, FRUNLCF,
TBLNAM, Yield Strength, Tensile
Strength
New dialog is shown on next slide.
GTSTRUDL
Additions to Display
Paramters Dialog
GTSTRUDL
Version 32 – GTMenu (cont)
• Implement automatic mesh algorithm for
2D elements to mesh structure using only
structure outline including internal
boundaries and line constraints.
The new meshing dialog is shown on the
next slide with several examples on
subsequent slides.
GTSTRUDL
New Meshing Dialog
Define External Boundaries
Define Internal Openings
Define Constraint Lines
Set the Mesh Size
GTSTRUDL
Model with External
Boundaries and Internal
Constraint Line
(Uses Construction Points
and Lines)
GTSTRUDL
Resulting Mesh
Constraint Line
GTSTRUDL
Model with External and Internal Boundary
(uses Constructions Points and Lines
GTSTRUDL
Resulting Mesh
GTSTRUDL
Version 32 – GTMenu (cont)
• Redraw solid will display the nine Unistrut
sections in the GTSTRUDL Unistrut table
as shown on the next slide
GTSTRUDL
GTSTRUDL
Version 32 – GTMenu (cont)
• 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 32 – 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 32 – GTMenu (cont)
• The user will be able to change the colors used
for contour plots.
Change colors for
contouring
• Different colors can be used for members and
finite elements for the deformed structure,
mode shapes and transient animation as shown
on next slide.
GTSTRUDL
You may also change the
color used for annotation
(labels and legends)
Different colors for members
and elements in Deformed
Structure, Mode Shape, and
Transient Animation displays
GTSTRUDL
Version 32 – GTMenu (cont)
• Dynamic mass specified using the
INERTIA OF JOINTS command can be
displayed.
• Example on next slide
GTSTRUDL
Dynamic mass from Inertia of
Joints from Load command
GTSTRUDL
Version 32 – GTMenu (cont)
• New Mode Bar selection called
Rect(angular) Fence which allows you to
select entities within the rectangular fence
GTSTRUDL
Rectangular
Fence
GTSTRUDL
Version 32
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.
GTSTRUDL
Version 32– Nonlinear Analysis
• The nonlinear member end connection and
plastic hinge models will be supported by
nonlinear dynamic analysis.
• Add nonlinear viscous damper element for
nonlinear dynamic analysis
GTSTRUDL
Version 32 – Offshore
• Move API 2A-WSD 21st edition code to
release status.
• Implement ISO 19902:2007(E),
International Standard for Petroleum and
Natural Gas Industries – Fixed Steel
Offshore Structures.
• Implement fatigue analysis based on
transient analysis results.
GTSTRUDL
Version 32- Reinforced Concrete
• The ACI 318-08 code will be implemented
for beam and column design.
• The DESIGN SLAB command will be
brought to release status.
GTSTRUDL
Version 32 - Steel Design
• Move Eurocode EC3- 2005 code to release
status.
• Add new parameter called ‘DesLoads’
which can be used to specify design loads.
• Add an option to create a group containing
the critical loads at the end of a CHECK or
SELECT command.
GTSTRUDL
Version 32
New Features – Steel Design
• Add a new option to the CHECK and
SELECT commands to print the load names
and section location used for the code
check.
• 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
Interfaces to Other Programs
• New “ATLAS” modeling interface under
development with STRUDL Europe
• AutoCAD – interface 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
Beyond 32
GTSTRUDL
Future Enhancements
• Multiple windows to allow for result display in a separate
window than the model display.
• Graphically specify joints and elements in GTMenu to be
used to obtain output from the LIST SUM FORCES
capability.
• Graphically specify Area Loads in GTMenu.
GTSTRUDL
Future Enhancements (cont)
• Addition of the following items to the input file
created by GTMenu:
– Dynamic Loadings
– Eigen Parameters
– Dynamic Modal Damping Data
–
–
–
–
Nonlinear Effects
Nonlinear Spring Properties
Nonlinear Solution Parameters
Cable Network Data
GTSTRUDL
Future Enhancements (cont)
• Implement AISC 2010 steel design code
with new tables.
• Implement AISC 2010 seismic provisions.
• Develop complete 64 bit version of
GTSTRUDL.
GTSTRUDL
Your assistance is needed to help us improve
GTSTRUDL:
• 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 as evidenced by the recent
enhancements to the Model Wizard which are a result
of input from users.