A Software Platform for

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A Software Platform for Collaborative
Development of OpenSees
Jun Peng and Kincho H. Law Stanford University
Acknowledgement This research is partially
sponsored by PEER, the Pacific Earthquake
Engineering Research Center
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Collaborative System Architecture
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Work Progress

• Deliverables
• Web-based Interface for Submitting Tcl File and
  Performing
• Analysis On-line
• Back-end (Relational) Database for OpenSees
  and Front-end
• Web Interface for Querying Analysis Results

• Research / Prototyping
• Web Applications Registration and Naming
  Service
• On-line Element Service Distributed Element
  Service
• On-line Element Service Dynamic Shared
  Libraries

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Server Modules
Analysis Core
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Mechanics of the Collaborative Model
REGISTRY
WEB-BASED CLIENT
ON-LINE ELEMENT SERVICE
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Example of a Sample Client
Internet
File Submission for Analysis Model
Analysis Results
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Work in Progress On-line Data Access
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Work in Progress On-line Data Access
Web Server
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Analysis Example
create the ModelBuilder object model
BasicBuilder -ndm 2 -ndf 2 build the model
add nodes node 1 0.0 0.0 . . . add material
uniaxialMaterial Elastic 1 3000 add feap
truss elements element fTruss 1 1 4 10.0 3000 .
. . set the boundary conditions fix 1 1 1 . .
. pattern Plain 1 Linear load 4 100
-50 . . . create the analysis object
analysis Static 1 perform the
analysis analyze print the results print node
4 print ele playback 1
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Future Improvements

• Data Access System
• Finalize the data access system design
• Improve performance of data query
• Provide user interface for data query

• Distributed Model
• Standardize element interface
• Further implement registration and naming
  service
• Improve distributed element services