XV Meeting of the Italian Users: Milan, 18 Oct 2012

XV Meeting of the Italian Users of GTSTRUDL

Date: October 18, 2010
IBIS Hotel Milano Centro
Principal Entrance: Via Finocchiaro Aprile, 2, 20124 Milano
Entrance for Conference Room:  Via Zarotto 8



0900 Hrs. Registration

0930 Hrs. “GTSTRUDL in Europe, our activities”, by Dr. A. G. Papachristidis, STRUDL Europe

0940 Hrs. Structural Engineering Software Quality Assurance and Quality Control issues in the Commercial Nuclear Power Industry; GTSTRUDL QA/QC Procedures and the QA License Agreement

1000 Hrs. New Features in GTSTRUDL 32, and Future Features planned for GTSTRUDL 33 and beyond, GTSTRUDL 32 Release Guide, Volume 1, Dr. L. Z. Emkin, CASE Center

1130 Hrs. Interval

1145 Hrs. Demonstration of a Few New Features in GTSTRUDL 32, by Dr. L. Z. Emkin. • A new eight node IsoParametric Solid Linear element with Incompatible Modes - IPSLIM. This element provides substantially improved accuracy over the existing eight node solid element (IPSL) for structures with bending and shear deformation. The element includes all of the features currently available with the current eight node solid IPSL element. • New Mindlin moderately thick plate FE's: • A new four node type PLANE STRESS quadrilateral with 3 dof’s per node with drilling dof’s and incompatible modes Q6CDRL • A new four node moderately thick pure type PLATE BENDING Mixed Interpolation of Tensorial Components (similar to the ADINA MITC4 FE) quadrilateral element – PBMITC • A new four node moderately thick PLATE shell Stretching and Bending Mixed Interpolation of Tensorial Components quadrilateral element with 6 dof’s per node (a unique Mindlin moderately thick shell FE combining the Q6CDRL and PBMITC FE formulations) – SBMITC. • PRINT MEMBER LENGTH SORTED LIMIT v now prints the total number of members that meet the specified limit after the list of member lengths. This only applies to LIMITS with decimal numbers, which indicates a length value and where the number of members meeting the criterion is unknown, and not to LIMITS with an integer number, which indicates a specified number of member lengths to print. • A GLOBAL option has been added to LIST FORCES. This option will print member forces in the global reference frame, instead of the standard local (member) reference frame. • The RENAME command has been added which allows the name of an existing component - joint, member/element, load or group, to be changed • The MEMBER PROPERTIES Command has been enhanced giving the user the ability to define member properties for Channels and Polygonal Tubes by specifying their dimensions. • The CALCULATE SOIL SPRINGS command has been enhanced to: • Allow a single KS value without an element list, which indicates that GTSTRUDL should find all elements and element faces that lie on the specified plane and create an assumed element list. This makes adding soil springs to an entire slab on one level much simpler. • Added a NO SUPPORT CHECK option to the COMPRESSION ONLY nonlinear springs capability. NLS support joint spring elements will be added to the model without regard to the current support status of the involved joints as opposed to the current requirement that soil springs can be added only to joints with the appropriate DOF (FX, FY or FZ) restrained. This allows greater flexibility in modeling, but leaves the responsibility of creating a stable analysis model up to the engineer. An informational message is generated if the NO SUPPORT CHECK option is used, but the joint dof corresponding to the NLS spring is fixed which will result in the created NLS spring being nonfunctional. • The name of the generated NLS has been added to the output if the COMPRESSION ONLY option is used. In addition, the informative comments output below the spring value report now reflect the actual names of the generated NLS so they can be copied from the output, and then pasted to an input file or pasted into the command window. • Base Plate Modeling (Base Plate Wizard User Guide) Base Plate Wizard Modeling and Finite Element Analysis.

1300 Hrs. Interval for Lunch

1415 Hrs. “GTSTRUDL in-depth presentation, questions, tips” by Dr. Emkin & Dr. Papachristidis Extremely Powerful and Hyper-Fast Linear and Nonlinear Static and Dynamic Analysis Computational Features of GTSTRUDL and their Application to Industrial Structures and Nuclear Power Plant Structures. • Using the GT64M Single and Multi-processor Static and Eigen Analysis Solvers • ACTIVE SOLVER feature • STIFFNESS ANALYSIS GT64M • GT64M ASSEMBLE FOR STATICS (OOC) • GT64M Stand-Alone Static Analysis Solver • GT64M COMPUTE GROSS RESULTS • General Structure and Recent Nuclear Power Plant Structure Examples of GTSTRUDL 32 Hyper-Fast Computational Features

1515 Hrs. “GTSTRUDL with ATLAS Modeling”, Dr. A. G. Papachristidis, STRUDL Europe A preview of ATLAS CAD system that is a powerful tool to easily view, edit and create GTSTRUDL structural models in an AutoCAD environment. It is also able to display and modify large GTSTRUDL models (having more than 50k joints, members, elements) with incredible speed. It can also import models from other programs (such as SAP2K, ETABS) and convert them into GTSTRUDL command files.

1615 Hrs. Interval

1630 Hrs. GTSTRUDL Applications by Users (in English or Italian)

1700 Hrs. GTSTRUDL Debate and Technical Questions, Dr. A. G. Papachristidis, STRUDL Europe Users will discuss current GTSTRUDL Features, stating their priorities for future development and ask questions regarding the use of GTSTRUDL

1800 Hrs. Closure