College of Engineering Discovery with Purpose Department of Civil, Construction and Environmental Engineering Tim Ellis, Associate Professor ENGR 101, Section 8 August 26, 2008

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose Agenda  Describe civil engineering.  Apply civil engineering concepts.  Have fun!

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose Design-build Trend Analysis Cost & Scheduling Claim Analysis IT-based decisions Construction Intelligent Compaction Concrete materials Asphalt Pavement Engineering Geo-construction Geo/Materials Water Pollution Control Useful Byproducts Recovery Bio-fuels/energy (CH 4, H 2 ) Fate/Transport of Pollutants Hydrology and Mixing Environmental Bridge Engineering Seismic design/analysis Wind Engineering Precast/Masonry Soil-Structure Interaction Structural Traffic Safety Geographic Infor. Systems Sustainable Transportation Weather Policy and Planning Transportation

College of Engineering Discovery with Purpose Structural

College of Engineering Discovery with Purpose Structural

College of Engineering Discovery with Purpose Geotechnical

College of Engineering Discovery with Purpose Transportation

College of Engineering Discovery with Purpose Environmental

College of Engineering Discovery with Purpose Water Resources

College of Engineering Discovery with Purpose Construction

College of Engineering Discovery with Purpose Surveying

College of Engineering Discovery with Purpose Materials

College of Engineering Discovery with Purpose CE Profession – a small sample of challenges you could address for society: Water Quality : Over 2 million deaths in the world each year from water- borne diseases Transportation: In US, over 40,000 fatalities highways each year Foundations and structural failures: thousands have died in earthquakes due to inadequate materials, designs, and construction procedures

College of Engineering Discovery with Purpose Are you eager to be a Civil Engineer? Let’s design a bridge….

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose Before we proceed - check the strength of materials in tension and compression In Teams:  1)Partner 1 grasp the flat sheet on the long end with thumb and index finger. Partner 2, do the same at other end of sheet. PULL with a steady force - is the flat sheet good in “Tension” ? 2) Reverse the direction of force, each person push (compress) the paper with equal force. What happened? 3) Use any additional equipment on your desk to improve the strength of the paper in compression.

College of Engineering Discovery with Purpose Consider other features affecting strength and stability  Shape  Slenderness  Stiffness

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose Pratt Truss Warren Truss Howe Truss

College of Engineering Discovery with Purpose West Point Designer Software allows you to design a truss bridge.

College of Engineering Discovery with Purpose You can design your bridge selecting a joint/member combination.

College of Engineering Discovery with Purpose The GOAL??? Structurally adequate…. and…economical. $$$$

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose  Bridge approach and abutments  Structural elements Material shape - flat iron or tubes Material type - carbon steel or high strength Material size - length and “width”  Connections

College of Engineering Discovery with Purpose

College of Engineering Discovery with Purpose COLOR SCHEME  TENSION members turn BLUE  COMPRESSION MEMBERS turn RED   The intensity of the color is directly proportional to the intensity of the loading

College of Engineering Discovery with Purpose UNLIKE MYTH BUSTERS! YOU CAN TRY THIS AT HOME