ENCE 717: BRIDGE ENGINEERING

Summer 2009, Tue 4:30 pm
ENGR 0135
Instructor: Dr. Chung C. Fu, P.E.
Office: S1129
Office Hours: TuTh 1:00-3:00pm
Phone : 301-405-2011
Fax : 301-314-9129
E-mail : ccfu@umd.edu

Course Objectives:

To give students understanding of the AASHTO Specifications and access to advanced knowledge in design of long-span steel plate girder, steel truss and prestressed concrete bridges. It is meant to include an introduction to computer-added design programs to analyze and design such structures.

Course Description:

The design and rating of bridge structures in accordance with the AASHTO LRFD (and WSD, LFD, if applied) specifications. Development of the basic strength and performance requirements as defined within AASHTO codes. Projects requiring the design, rating and ultimate strength evaluations will be assigned for all of the predominate construction types including: steel, concrete and wood (may include FRP); simple and continuous span; straight and horizontally curved; non-composite and composite I- and box section superstructure elements.

Course Workload:

  • Readings (textbook, selected journal papers, additional handouts)
  • One midterm
  • Six to eight homework
  • Two projects

Prerequisites:

Not listed, but preferable ENCE454 Design of Concrete Structures and ENCE455 Design of Steel Structures (or equivalent courses).

Textbooks:

No textbooks; all hands-out and reference books

Reference books:

  1. AASHTO Standard Specifications for Highway Bridges (http://www.aashto.org)
  2. AASHTO LRFD Bridge Design Specifications (http://www.aashto.org)
  3. AISI Four LRFD Design Examples of Steel Highway Bridges (http://www.aisc.org)
  4. PCI Precast Prestressed Concrete Bridge Design Manual (http://www.pci.org)
  5. Forest Service Timber Bridges
  6. Bridge Rehabilitation and Replacement by Sung H. Park
  7. Bridge Inspection by Sung H. Park
  8. FHWA Bridge Inspector's Training Manual
  9. Design of Highway Bridges by R.M. Barker and J.A. Puckett (http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471304344.html )
  10. Theory and Design of Bridges by P.P. Xanthakos (http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471570974.html)
  11. Bridge Substructure and Foundation Design by P.P. Xanthakos (http://vig.prenhall.com:8081/catalog/academic/product/0,4096,0133006174,00.html )
  12. Design of Modern Highway Bridges by Narendra Taly (http://www.rbookshop.com/engineering/h/Highway_Engineering/Design_of_Modern_Highway_Bridges_0070629978.htm )

Related Web Pages:

  1. FHWA Bridge Division (http://www.fhwa.dot.gov/bridge/index.htm)
  2. IABSE - International Association for Bridge and Structural Engineering (http://www.iabse.ethz.ch/)
  3. International Bridge Industry (http://www.bridgeweb.com/)
  4. Bridge Related Books (http://www.abcdpittsburgh.org/books.htm)
  5. Japan Suspension and Cable-stayed Bridge Site (http://www.hsba.go.jp/technolo/index.htm)
  6. Bridge related Links (http://www.bridgesite.com/)
  7. The Internet for Civil Engineers (http://www.icivilengineer.com/Structural_Engineering/Bridge_Engineering/)

News:

1.         

Syllabus for Summer 2009

ENCE 717 : BRIDGE ENGINEERING

COURSE CONTENTS

The course will be partitioned into five parts:

  • I. Introduction (2 weeks) : (http://www.iabse.org/elearningfiles/Tang070913/player.html)
  • II. Steel Bridges (4 weeks) :
    • Steel bridge material
    • Steel bridge design (LRFD Design Example for Steel Girder Superstructure Bridge)
    • HW#2: With the Full Effective Flange Width, redo FHWA example positive moment area (1) section properties (p. 3-13); (2) stresses for Strength I, Service II & Fatigue (p. 3-29); (3) plastic moment Mp (p. 3-39); and (4)  yield moment My (p3-41) using the provided excel template (due 6/30/09)
    • Composite and non-composite straight bridges
    • HW#3: DASH Practice (tutorial: http://best.umd.edu/software/merlin-dash/index.html) by following the FHWA example (revised from sample data LRFDEX2E.dat) and making comparison between the two with the excel template for DASH-Analysis Check (due 7/14/09).  Check items are:
      1. Load combination for moment check @ 0.4L & interior support locations
      2. Load combination for shear check @ 1st & interior supports
      3. Stress check @ 0.4L & interior support locations
    • Fatigue and fracture
    • HW#4 (due xx/xx/09 for HW#3 1 thru 3 and HW#4 1.2; due xx/xx/09 HW#4 3 & 4): Use the same DASH and FHWA example results from HW#3 for
      1. Fatigue stress check @ 0.4L & interior support locations
      2. Shear range check @ 1st & interior supports and your design of shear connectors, shear ranges & allowable throughout in graphics (FHWA Design Step 5.1)
      3. Splice design check (FHWA Chart 4) using Splice program
      4. Elastomeric bearing design check (FHWA Chart 6) using Method A & Method B.
    • Fabrication
    • Truss bridges 
  • III. Concrete Bridges (4 weeks) :
    • Concrete bridge material
    • HW#5: With the Full Effective Flange Width, redo FHWA example interior (1) CGS of the basic beam; (2) section properties (p. 2-4 & 2-10); using the provided excel template and also (3) finish the calculation in cells c46-g48 of the sheet “Properties” of that template. (due xx/xx/09)
    • Reinforced concrete bridge design
    • Prestressed concrete bridge design (LRFD Design Example for Prestressed Concrete Girder Superstructure Bridge)
    • Fabrication and erection
    • HW#6: DASH (or other similar PC program) Practice (tutorial: http://best.umd.edu/software/merlin-dash-pbeam/index.html) by following the FHWA example (revised from sample data Pci9-6a.dat) and making comparison between the two with the excel template for DASHP-Analysis Check (due xx/xx/09).  Check items are:
      1. Load combination for moment check @ 0.4L & interior support locations (Table 1)
      2. Load combination for shear check @ 1st & interior supports (Table 2)
      3. Stress check @ 0.4L & interior support locations (Table 3 - At Release & Table 4- At Service)
  • IV. Miscellaneous (2 weeks) :
    • Timber bridges
    • Bridge joints and bearings
    • Bridge decks
    • Bridge inspection and management
    • Non-destructive evaluation techniques
  • V. Foundations/Substructures (2 weeks) :
    • Retaining wall and abutment (Abutment/Pier Design) (Abutment/Pier Design Calculation for FHWA Example Concrete Bridge Substructure)
    • Pier
    • Spread and piled foundation
    • HW #7 (Final): Using the excel template for Integral Abutment Calculation redesign the whole integral abutment of the FHWA example concrete bridge substructure (pp. 7-6 thru 37) assuming the whole superstructure loads (including the approach slab live load) increased by 50% (hint: try to keep the size of the substructure, only modify the reinforcement.) (Do this homework independently!  due xx/xx/09)

 
Footnote: Homework - 80%, Final - 20%, Total 100%

Click here to E-mail questions or comments.
 

by Chung C. Fu
Last Modified 30 June 2009
_