Highway wind damage
0 likes83 views
A finite element analysis was conducted to simulate the effects of Category 5 hurricane winds on a highway sign. The 3D solidworks model represented the steel construction and bolted connections to concrete supports. The FEA mesh and 200 mph steady wind loading predicted over 2 inches of permanent deformation and stress exceeding the steel yield point near the base of vertical supports, indicating failure. More advanced dynamic analysis was recommended to predict vibration from wind turbulence.
Highway wind damage
- 1. Category 5 Hurricane Wind Damage FEA stress analysis Highway Sign 10/29/2017 rev B Don Blanchet 3B Associates dwb3298@verizon.net Prepared for: FL-DOT 1
- 2. Solidworks 2018 model 2 Steel construction welded and bolted Steady 200 MPH wind loading
- 3. FEA mesh 450,000 d.o.f. 3
- 4. Boundary Conditions 4 Bolted to heavy Concrete supports 2 places
- 5. Results: permanent deformation 2.89 inches 5
- 6. Results: peak stress 6 Steel yield point Exceeded Near base of vertical supports
- 7. Conclusions Simple static analysis predicts failure at a steady wind pressure. More complex dynamic analysis recommended CFD turbulence calculations to predict vibration response due to downstream vortex shedding. 7
- 8. 8
- 9. 9