GSA 8'4 New Features

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GSA 8.4 New Features
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General New Features

• October 2009

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General Version identification
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General Version identification
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General Version identification
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General Version checking
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General Version checking
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General History
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General History
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General History
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General Technical FAQ
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GSA 8.4 New Features

• October 2009

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GSA 8.4Analysis Features
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GSA 8.4 Piled Raft Analysis

• Piles are modelled in the model of the structure
  (the GSA model) using a string of beam elements
• The soil is modelled as Pdisp (né Vdisp) data
  (via GSA), in the same way as for non-piled rafts
• The nodes down the length of the piles are
  associated with the soil model using the Pile
  Interaction table

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GSA 8.4 Piled Raft Analysis
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GSA 8.4 Piled Raft Analysis

• Pile interaction numbers and pile interaction
  areas can be 'labelled' at nodes
• The analysis of piled rafts is requested in the
  same way as for non-piled rafts
• method

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GSA 8.4 Piled Raft Analysis
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GSA 8.4 Piled Raft Analysis

• Soil Nodal Results now include Contact Pressures
  and Interaction Areas per direction
• these can also be contoured

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GSA 8.4 Piled Raft Analysis
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GSA 8.4 Bridge Analysis

• Full carriageway load optimisation to Eurocode
• method
• Lane-by-lane load optimisation to Eurocode
  Australian code

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GSA 8.4 orthotropic soap-film form-finding

• Soap-film form-finding analysis using different
  pre-stress in x y directions for 2D elements

Currently, pre-stresses same in x y
directions occasionally causes necking problem
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GSA 8.4 orthotropic soap-film form-finding

• Soap-film form-finding analysis using different
  pre-stress in x y directions for 2D elements

Using higher pre-stresses in radian direction and
lower pre-stresses in circumferential direction
overcomes the necking problem
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GSA 8.4 Footfall Analysis to AISC SDGS11
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GSA 8.4 Footfall Analysis using DLFs

• Footfall analysis using user defined dynamic load
  factors
• method

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GSA 8.4 Footfall results on 2D elements
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GSA 8.4 Environmental Impact

• Impact parameters
• Embodied energy
• Embodied carbon
• Recycled content
• user defined
• Applied to
• Structure
• (per material type)
• Material

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GSA 8.4 Environmental Impact output

• Output
• As summary for structure
• Contoured

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GSA 8.4 Tied Interfaces

• A tied interface constrains a list of slave
  elements to act as if connected to a list of
  master elements
• A typical use of a tied interface is to zip
  together adjacent areas of 2D element mesh
• to overcome poor topological connectivity between
  the areas of mesh

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GSA 8.4 Tied Interfaces
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GSA 8.4 Tied Interfaces
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GSA 8.4 Tied Interfaces
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GSA 8.4 Tied Interfaces
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GSA 8.4 Tied Interfaces
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GSA 8.4 Tied Interfaces

• Relationship between master and slave lists is
  significant
• Fewer masters of more slaves

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GSA 8.4 Tied Interfaces
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GSA 8.4 seismic enhancements

• Response spectra
• New spectra ASCE 7-05, GB 50011-2001, EC8 2004
• Enhancement to response spectrum wizard
• Summary page (for most commonly used spectra)
  with details of derived values
• Damping options moved from task to spectrum
• Clarification of how they will affect
  calculations
• Improvements to seismic results
• Scaling of modal results based on response
  spectrum
• CQC combination of a single mode response retains
  the sign of the result
• New combination option sign(Ai,Aj) useful to
  assign a sign to a response case based on a
  significant mode

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GSA 8.4 Charts
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GSA 8.4 Modal Analysis Details chart
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GSA 8.4 Modal Analysis Details chart
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GSA 8.4 Forces on 2D Element Cut chart
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GSA 8.4 Forces on 2D Element Cut chart
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GSA 8.4 Forces on 2D Element Cut chart
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GSA 8.4 Cut Section Forces chart
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GSA 8.4 Cut Section Forces chart
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GSA 8.4Mesh Generation
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GSA 8.4 generation of Tied Interfaces
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GSA 8.4 generation of Tied Interfaces
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GSA 8.4 generation of soil spring supports
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GSA 8.4 generation of soil spring supports
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GSA 8.4Miscellaneous new features
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GSA 8.4 Initial Setup wizard
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GSA 8.4 Initial Setup wizard
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GSA 8.4 Initial Setup wizard
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GSA 8.4 initial views
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GSA 8.4 initial views
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GSA 8.4 initial views
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GSA 8.4 batch saving of views
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GSA 8.4 batch saving of views
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GSA 8.4 batch saving of views
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GSA 8.4 explicit colour
video
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GSA 8.4 translucency control
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GSA 8.4 hide entities options
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GSA 8.4 Broadcast Case List
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GSA 8.4 hide/show offset marks
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GSA 8.4 select by polyline
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GSA 8.4 Copy Selection As GWA
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GSA 8.4 Copy Selection As GWA
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GSA 8.4 copy from tables in GWA format
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GSA 8.4 copy from tables in GWA format
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GSA 8.4 other Table View options
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GSA 8.4 Draw excluded faint
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GSA 8.4 Draw excluded faint
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GSA 8.4 Join String of 1D Elements
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GSA 8.4 Join String of 1D Elements
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GSA 8.4 Split 1D Elements at nodes
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GSA 8.4 Split 1D Elements at nodes
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GSA 8.4 Split 1D Elements at nodes
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GSA 8.4 Refine Mesh at Nodes
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GSA 8.4 Refine Mesh at Nodes
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GSA 8.4 contouring of grid area loads
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GSA 8.4 contouring of grid area loads
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GSA 8.4 contouring based on rounded range
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GSA 8.4 data check enhancements
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GSA 8.4 Other new features

• Lines, Areas and Regions are now represented in
  tables
• Grid nodes are handled in the Nodes table
• (the distinction between grid and standard node
  has been eroded)
• Names can be assigned to nodes and elements
• Bar element intermediate results not output
• (unless requested)
• 2D element projected axes diagrams

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GSA 8.4COM Interface
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GSA 8.4 COM Interface

• Changes to underlying engine
• multiple instances
• (a little faster)
• GSA COM versioning
• GWA keyword versioning (for GwaCommand)
• Renumber functions
• New samples
• VBA sample updated
• C sample (early binding)
• .NET sample with wrapper functions
• Renumber

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GSA 8.4Interface with Third Party Software
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GSA 8.4 Interface with Third Party Software

• ASAS GSA Translator
• GsRevit
• Explicit mapping of sections
• RS2010 compatibility
• Rationalise Sections for BIM Coordination
• Check Model Suitability for BIM Coordination
• Importing a GSA model into Revit tutorial at
• http//www.oasys-software.com/gsa/viewlets.shtml

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• http//www.oasys-software.com