CRAB FRAME STRUCTURAL SIZING DOSSIER

Compliance Audit: IS 800:2007 & IS 3177:1999 Standards

SWL + IMPACT

Top View Analysis: Double Girder Trolley Configuration

1. Loading Distribution & Dynamic Scaling

Parameter Description Input / Variable Calculated Design Load
Safe Working Load (Live Load) 15 Tons 147.15 kN
Dynamic Impact Factor (ψ) 1.25 Factored SWL: 183.94 kN

2. Structural Integrity Check (Bending Stress)

Vertical bending stress must remain below 0.66 × fy per IS 800 allowable stress design (ASD) guidelines.

Analysis Type Calculated Value Limit / Allowable Status
Max Bending Stress (σb) -- MPa -- MPa PENDING
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