INTEGRATED APPROACH FOR STRUCTURAL ENGINEERING FROM CONCEPTUAL DESIGN TO FABRICATION

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INTEGRATED APPROACH FOR STRUCTURAL ENGINEERING
FROM CONCEPTUAL DESIGN TO FABRICATION
SANJAY KUMAR ARORA MANAGER CIVIL, PEM,
BHARAT HEAVY ELECTRICALS LIMITED NEW DELHI, INDIA
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BHEL - AN OVERVIEW
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BHEL

• Indias Largest Engineering Manufacturing
  Enterprise for Power Generation, Transmission
  Distribution equipments
• One of the few manufacturer in the world who can
  supply entire spectrum of products system for
  Power Projects from its own manufacturing bases.

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BHEL - From just over 1300MW of capacity in the
country in 1947 comprising of all imported
equipment, we today have over 115,000MW of
capacity 65 of this from BHEL, India.
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OPERATING BUSINESS AREAS
Thermal, Gas, Hydro, Nuclear, DG Sets
Switchgear, Transformers, Insulators,
Substations, SCADA, HVDC Systems
Boilers, Pumps, Heat Exchangers, Valves, Motors,
Compressors, Control Instrumentation Systems,
Water de-salination plants
SERVING CORE INFRASTRUCTURE SECTORS OF THE
ECONOMY
On-shore Drilling Rigs, Valves
Solar Photo Voltaic Power, Solar Water Heating
Systems, Wind Electric Generators, Hybrid
Distributed Power Generating Systems
Locomotives (electric - AC/DC), Diesel-electrics,
EMU's, Traction Electrics
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INTEGRATED APPROACH FOR STRUCTURAL ENGINEERING
FROM CONCEPTUAL DESIGN TO FABRICATION
OBJECTIVE
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INTEGRATED APPROACH FOR STRUCTURAL ENGINEERING
FROM CONCEPTUAL DESIGN TO FABRICATION

• To eliminate heirarchical structure of (serial)
  information flow in design
• To incorporate 3D model based conceptualisation
  and design
• To integrate the various stages and build a
  design chain by utilising intelligent 3D
  modelling technology and various other design
  and detailing software

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Current practice and information flow
Layout Engineer
Structural Engineer
CONSTRUCTION STAGE
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PROBLEMS WITH CURRENT PRACTICE

• The information management is decentralised.
• The information is passed, as documents, between
  the various agencies involved.
• The correctness of the final result is to be
  ensured by number of checks and reviews.

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PROBLEMS WITH CURRENT PRACTICE

• Document based communication between various
  agencies becomes the bottleneck as large amounts
  of information are not passed, or are passed in a
  form, which the receiving party cannot readily
  use for further value addition.
• This leads to duplication of efforts for drawing
  work in restoring the same information many
  times.

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SUGGESTED SOLUTION TO PROBLEMS WITH CURRENT
PRACTICE

• BUILDING UP A DESIGN CHAIN BY INTERCONNECTING
  THE VARIOUS STAGES NAMELY
• ANALYSIS AND DESIGN
• 3D MODELLING
• DETAILING

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THE DESIGN CHAIN .
GT STRUDL -STRUCTURAL ANALYSIS SOFTWARE By
Case centre , Gtech, USA
PDMS -3D MODELLING SOFTWARE By Aveva
Technologies, USA
XSTEEL 3D STRUCTURAL STEEL DETAILING SOFTWARE
By Tekla Inc.
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Development of Design chain using 3D modeling
technology

• STAGE - I

The space frame analysis and design is to be
carried out in normal fashion Final analysis
file to be used for generation of 3D model in
PDMS environment
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Development of Design chain using 3D modeling
technology
The final analysis file shall be modified by
adding certain comment cards Comment augmented
analysis file shall be utilised for further step
in design chain. All prismatic section profiles
in analysis file shall be automatically converted
to actual profiles in PDMS environment.
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DEVELOPMENT OF INTERFACE BETWEEN GTSTRUDL AND
PDMS

• Transfers all rolled sections as per
  selected/intended section tables
• Transfers all built-up members as per
  selected/intended profiles in parametric form,
• Parameters can be changed at any stage of further
  modelling
• Places all the members in appropriate framework
  hierarchy corresponding to groups made in
  analysis input file.
• Translates the member offset command of analysis
  file in to actual cut length in 3D model

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Development of Design chain using 3D modeling
technology
STAGE - II
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CUSTOMISATION OF PDMS SOFTWARE TO INCORPORATE ALL
TYPES OF ROLLED/BUILTUP SECTIONS IN PARAMETRIC
FORM
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Benefits of 3D modelling in PDMS

• INTERFERENCE CHECKS IN PDMS ENVIRONMENT
• GENERATION OF OTHER RELATED INFORMATION IN PDMS
• SUPERIMPOSTION OF OTHER STREAM DATABASES IN PDMS
  ENVIRONMENT
• GENERATION OF PIPING ISOMETRICS
• GENERATION OF HANGER ASSEMBLY DATA ETC.

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3D model in PDMS enviroment An overview
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Development of Design chain using 3D modeling
technology
Interface program 1

• STAGE - III

Analytical Model (Staad Pro or Gtstrudl)
Analysis and strl. Design
3D Plant Model in PDMS
Modification of SDNF link using interface
program 2
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Design chain using 3D modeling technology
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Development of Design chain using 3D modeling
technology
Interface program 1
Analytical Model (Staad Pro or Gtstrudl)
Analysis and strl. Design
3D Plant Model in PDMS
Modification of SDNF link using interface
program 2
3D Plant Model in Xsteel
Joint Detailing in Xsteel
Drawing production
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Benefits of Integrated work approach

• Single Point Data Entry

• Interference Free Design and Construction

• Engineering time cycle reduction

• Elimination of errors slipping to site

• Reduction in project cost - elimination of rework

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The road further

• Development of internal interface between
  GTSTRUDL AND XSTEEL FOR TWO-WAY DATA TRANSFER

• INCORPORATION OF BUILTUP MEMBERS IN GTSTRUDL
  ALONG WITH RELEVENT CODE CHECKING

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The road further
Layout
Modeling
Analysis
Design
Internal Interface Program By Case Centre
Design Drawing
Fabrication Drawing
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The road further
Interface program
Analytical Model (Staad Pro or Gtstrudl)
Analysis and strl. Design
3-D Plant Model in Xsteel
Joint Detailing in Xsteel
Drawing production