Field Design Review Presentation
Transcript: Fabrication Steps Fabrication Safety Competition Analysis/ Modeling Structure Member Size Deflection Accessibility On time completion of all documentation Pre-submittal Setbacks: Fabrication (tabs vs. washers, member length, welding time) 3 Components: Overall Schedule WBS Construction/ Workout Schedule Construction time: Used results from springfest 1.0 Weight: 149lbs Deflection: Structural failure - 1750 lbs 70% of the total load Overhead Truss Pre-Bridge: 1 Intense Running 1 Team Game Day 1-2 Individualized Cardio Post-Bridge: T/T Fieldhouse M/W Brown Hallway Melody Clay, Audrianna Ricotta, Spencer Wells, Ryan Hooper, Nathaniel Ober, Peter Eisinger WBS Dovetails Sent out for fabrication Welded to connections Main Truss Members Mig Welded Zimkor Acknowledgments Competition Scoring Overall Performance: = Construction Economy (Cc) + Structural Efficiency (Cs) RISA - Symmetrical Must add deflection accounting for maximum tolerance P-delta Effects Challenge: Design and Fabricate a 1:10 scale steel bridge prototype for the 2015 ASCE/AISC Student Steel Bridge Competition Mission: Minimize: weight, deflection, construction time Dove-tail Connections Project Overview Quality Control Cut sheets Member cutting Weld penetration Springfest 2.0 Gloves Glasses Long Sleeves Welding Helmet Connections Overall Schedule Points Of Failure Fabrication Project Constraints Analysis/Modeling Fabrication Failure Quality control Insufficient Modeling Analysis/Calculations Benefits: small amount of members efficient connections Ideal weight to deflection ratio Safety Quality Control Design Team Construction Workout Schedule Per Week Clarifications 70% practice Load Test Re-build - model changes Check required distances (weld clearances) Budget Analysis/Modeling Cont'd. Springfest 1.0 Competition Failure Analysis RISA Modeling - consult experts for design review Use resources - professors on campus Have multiple skilled users - assign model reviewer Final Design Review Presentation Modifications We would like to acknowledge the following contributors for their assistance with the projects: Clients: Victor Mazzarella, and Ben Seling (Kiewit) Faculty Advisor: Dr. Lauren Cooper Fabrication Consultant: Dave Genova, Jerry Love (Zimkor), and John Jezek Design Consultants: Jeffrey Holley, Dr. Andres Guerra, Dr. Joe Crocker, and Renee Ereckson (Martin/Martin) Nuts and Bolts: Steve Krueger (Whitecap Construction Supply) Lessons Learned Construction time: Raw time: 15 minutes 18 seconds Penalties: 2 - 15 second penalties Total construction time: 15 minutes 48 seconds. Weight: 145 Clear distance penalty - 50lbs Deflection: loss of structural integrity - 1150lbs 46% of the total load Schedule Added Cross Bracing Lateral Stiffening Fabrication