Fully detailed bolted beam-to-column moment connection designed for a high-seismic zone (SDC D) commercial building in California, USA.
Scope: Complete fabrication-ready package including 3D Tekla/Advance Steel model, shop drawings, connection design calculations (AISC 360-16 & AISC 341-16), and nonlinear finite element verification.
Deliverables provided to the client
Tekla Structures 3D model (native .ifc + .dwg export)
Full shop drawing set (plans, sections, 3D views, bolt schedules)
Connection design calculations (stiffened end-plate + shear tab, 8 × M27 A325 bolts)
ABAQUS/ANSYS finite element analysis showing von Mises stress distribution and plastic hinge formation under 1.5 × MCE loading
Material take-off and CNC files for fabricator
PE-stamped calculation package (California-licensed Structural Engineer)
Key features
Doubler plates and continuity plates added for strong-column weak-beam philosophy
Stiffener alignment optimized to avoid interference with architectural finishes
All welds and bolts designed for 100% moment transfer
Connection passed 2022 CBC / ASCE 7-16 interstory drift requirements with >2.5% rotation capacity
Client received approval from the steel fabricator and building official on first submission. Project completed 25% under typical detailing budget due to early clash detection in the 3D model.
Software used: Tekla Structures, Advance Steel, AutoCAD, ABAQUS/ANSYS, Excel + Mathcad calculation templates.