BIM for Precast: Models Connections and Documentation

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BIM
for Precast
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Precast planning and layout with
conventional methods can be costly and
challenging for
Concrete Contractors
Site Engineers
Pre-casting Manufacturing Firms
Structural Designers
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Paper-based or 2D CAD processes are often
inaccurate or error-prone leading to

• Inaccuracies in coordination
• Greater drawing errors due to lack of
  visualization
• Higher modifications / rework
• Costly material wastage and hiccups in
  construction process

Let us understand the specific challenges for
precast using legacy methods.
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2D conventional precast techniques pose the
following challenges
Design errors with 2D CAD techniques leads to
reduced constructability
Inaccurate or incomplete reports for BBS
with CAD-based drawings
Uncoordinated shop drawings lead to inaccurate
casting and material wastage
Higher field errors lead to greater delivery
erection time
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• Precast concrete design, manufacturing,
  scheduling, and installation becomes seamless
  with BIM processes and tools.

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4 Ways
that BIM can help Precast
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Faster generation of reports based on clash-free
and coordinated 3D models
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• Quick and accurate report creation through
  coordinated 3D BIM models for manufacturing, and
  installation.

Coordinated reports for precast planning and
layouts

• Extraction of quantities from bar bending
  schedules and bar lists through a coordinated 3D
  BIM model.

• Typical set of structural elements from
  clash-free BIM models, with unique ID and
  erection ID for further coordination.

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Typical list of structural elements using BIM
Coordinated BIM models help in publishing a
typical list of structural elements with respect
to size and shape which help
Detailed list of structural members for factory
production

• Factories to save on reusable moulds and continue
  production in respective batches.

• Save cost and time for overall production process
  in factories.

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Extraction of model-based shop drawings for
improved casting efficiency
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• Production of a fully coordinated 3D Rebar model
  with documentation to build a comprehensive
  document set.

Generate accurate shop drawings with BBS

• Quick extraction and edit of shop drawings from
  BIM models.

• Detailed BBS (Bar Bending Schedule) from
  coordinated BIM models for precise casting.

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Faster building erection with Precast concrete
modeling and detailing
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• Visualization of erection sequences with unique
  ID with precast element connections and joint
  design for better assembly.

Reduce onsite errors for faster erection

• Precise mapping of construction activity planning
  and elements related to each activity with the
  use of BIM.

• Swift onsite erection, cost and time savings with
  accurate component placement, precise erection
  orders, and planned logistics for speedy
  construction.

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Coordinated 3D structural model at LOD 450 saves
cost and time for office building.
An accurate, information-packed, and clash-free
3D Revit structure model at LOD 450 reinforced
with Rebar modeling saved cost and time for a
precast manufacturing project.

• Click here to read more
• https//www.hitechcaddservices.com/case-studies/re
  vit-structural-model-for-office-building/

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Enhance the ROI of your construction project with
accurate 3D model-based documentation and
complete sheet setup.

• Connect with our precast modeling and detailing
  team for cost-effective deliverables and high
  impact outcomes.

www.hitechcaddservices.com info_at_hitechcaddservices
.com