3D Structural Modeling Services USA — Tekla & Revit LOD 400 Models
We deliver precise 3D structural steel and concrete models at LOD 400 to eliminate coordinate clashes and automate downstream shop fabrication drawings.
What are 3D structural modeling services?
3D structural modeling services produce coordinated digital representations of a building's skeleton, including steel frames, concrete rebar, and connections. Using software like Tekla Structures and Revit, engineers build LOD 300 to LOD 400 models to identify spatial conflicts and automate fabrication ticket extraction.
At Total Engineering Consultants, we build information-rich models containing precise steel profiles, connection geometry, and material grades. Our 3D modeling pipeline resolves spatial clashes during the design phase, avoiding expensive shop rework and field modifications on the jobsite.
MODELING DELIVERABLES
Tekla Steel Modeling (LOD 400)
Constructing coordinated 3D steel models including all beams, columns, gusset plates, weld preps, and bolt-hole configurations.
Parametric Revit BIM Models
Developing intelligent 3D structural concrete, timber, and masonry models enriched with material grades and engineering attributes.
Clash Audit & Trade Coordination
Running Navisworks collision detection to identify and resolve spatial conflicts between structural steel and MEP/architectural layouts.
BOM & Material Extraction
Extracting exact material schedules, profile weights, bolt list counts, and CNC data files directly from the approved 3D model.
STRUCTURAL MODELING OUTPUTS
LOD 300 Design Models
Accurate member sizes and general coordinates for design development reviews.
LOD 400 Shop Models
Fabrication-ready steel assemblies, connection plates, welds, and rebar details.
Clash Resolution Reports
Navisworks audit logs and coordinated RFI notes to adjust beam-column joints.
CNC Export Files
Generating DSTV files (.NC1) directly from approved Tekla models for beam line burners.
OUR 3D STRUCTURAL MODELING WORKFLOW
From design notes to verified models, we build coordinated digital twins to streamline steel fabrication.
Input & Grid Setup
Import structural general notes, foundation sheets, architectural grids, and coordinate files.
Primary Member Modeling
Model key columns, main beams, concrete shear walls, and foundation envelopes in Tekla/Revit.
Connection Detailing
Model connection hardware, weld specifications, reinforcement bars, and structural anchors at LOD 400.
Clash & RFI Audit
Run clash checks in Navisworks, coordinate with the EOR to resolve connection clearances and structural overlaps.
Drawing & CNC Export
Extract assembly drawings, shop tickets, erection sheets, and Excel material summaries from the final model.
How does seismic modeling integrate with 3D structural services?
Seismic structural modeling designs ductile moment frames, shear wall boundary zones, and continuous steel connection loads within the 3D model. In compliance with ACI 318 and AISC 341, engineers simulate earthquake forces to verify connection capacities before drawings are detailed.
Modern building design in seismic regions requires strict verification of structural joints. Flat 2D plans cannot show column splicing offset clear-covers or complex gusset plate welds. By modeling seismic force-resisting systems (SFRS) in a 3D Tekla or Revit workspace, we check clearance fits and load path continuity.
We detail specialized moment-resisting connections, eccentrically braced frames (EBF), and buckling-restrained braced frames (BRBF). This 3D check guarantees that the fabricated components pass municipal code inspections and fit perfectly in earthquake-prone areas like California and Washington.
REGIONAL MODELING EXPERTISE
We adapt structural models to comply with local wind load requirements and seismic ordinances.
We model heavy steel structures, refinery pipe racks, and petrochemical skids designed to resist extreme coastal wind loads.
Total Engineering Consultants delivers coordinated 3D structural BIM models for commercial high-rises and parking decks, conforming to Midwestern codes.
We detail structural models for complex urban sites, verifying connection clearances and crane positioning limits under NYC codes.
Our team models seismic frames, shear wall boundary elements, and ductile connections in compliance with California Building Codes.
We support local builders with commercial tilt-up model coordination, framing structures, and rapid drawing extraction.
3D STRUCTURAL MODELING FAQS
What are 3D structural modeling services?
3D structural modeling services produce coordinated digital representations of a building's skeleton, including steel frames, concrete rebar, and connections. Using software like Tekla Structures and Revit, engineers build LOD 300 to LOD 400 models to identify spatial conflicts and automate fabrication ticket extraction.
What is the difference between LOD 300 and LOD 400 modeling?
LOD 300 represents structural members with accurate sizes, locations, and slopes, suitable for design coordination and basic estimates. LOD 400 includes all fabrication-specific details—such as weld preps, connection plates, bolt holes, and reinforcement rebars—making the model ready to extract shop drawings.
Why is Tekla Structures preferred for steel modeling?
Tekla Structures is the industry standard for steel detailing because it handles complex connection details and generates highly accurate CNC files (.NC1) for automated shop drilling and cutting, reducing human errors.
How do you handle clash detection in structural models?
We export our structural models to Autodesk Navisworks and overlay them with the architect's model and the MEP (Mechanical, Electrical, Plumbing) models. We run automated clash tests to identify spatial conflicts, resolving them in our model before issuing drawings.
Can you extract material lists directly from the 3D model?
Yes. Every member and plate modeled in Tekla or Revit has volume and weight data. We export exact Bills of Materials (BOM) directly, ensuring that what you buy matches what gets fabricated.
What formats do you accept for 3D modeling?
We accept architectural and structural drawing packages in DWG, PDF, Revit RVT, Tekla model backups, IFC, or scanned point cloud formats.
REQUEST A 3D MODELING PROPOSAL
Outsource your structural 3D BIM models to Total Engineering Consultants. Send your structural designs or layouts and receive a comprehensive pricing proposal within 24 hours.