CE 514

Instructor: Chris L. Mullen 202 Carrier Hall x-5370
URL: http://www.olemiss.edu/~cvchris
Email: cvchris@olemiss.edu

Text: Nawy, E. G., Prestressed Concrete: A Fundamental Approach, Prentice-Hall, 1996

References:

1. Collins, P. C., and D. Mitchell, Prestressed Concrete Structures, Prentice-Hall, 1991.
2. Lin, T. Y., and N. H. Burns, Design of Prestressed Concrete Structures, Wiley, 1981.
3. Billington, D. P., Thin Shell Structures, McGraw-Hill, 2nd edition, 1990.
4. Billington, D. P., Robert Maillart: The Art of Engineering, Princeton University Press, 1979.

Prerequisite: CE 411 (Structures II) or equivalent.
CE412 (Design of Concrete Structures) or equivalent is also highly recommended; design project required for graduate credit

Summary : Primarily covers sections in text listed below.

I. Prestressing Concepts, Systems, and Materials

• History and basic design methods (Sec 1.1-1.7)
• Typical precast elements and prestressing systems (Sec 2.10-2.11 )
• Concrete material properties (Sec 2.2-2.5 )
• Steel reinforcemnt material and bond properties (Sec 2.2-2.5 )
• ACI permissible stresses (Sec 2.8-2.9)
• Prestress losses (Sec 3.1-3.12)

II. Flexural Analysis and Design of Prestressed Elements

• Service-load design (Sec 4.1-4.3 )
• Section selection, anchorage zone and composite beam design (Sec 4.4-4.6 )
• Step-by -step design procedure (Sec 4.7 )
• Design of simple composite post-tensioned section
• Ultimate-strength design (Sec 4.9-4.16 )
• ACI and AASHTO load factors

III. Shear and Torsional Strength Design

• Homogeneous and reinforced beams in shear (Sec 5.1-5.4 )
• Shear and principal stresses in prestressed beams (Sec 5.5 )
• Planar truss analogy for web-shear reinforcement (Sec 5.6 )
• Shear strength design in prestressed beams (Sec 5.12-5.14 )
• Space truss analogies and compression field theory applied to torsion (Sec 5.17 )
• Ddesign procedures for combined torsion and shear (Sec 5.18-5.21 ).

IV. Deflection and Crack Control

• Short-term deflections (Sec 7.1-7.5)
• Moment-curvature relations (Sec 7.6 )
• Long-term deflections (Sec 7.7-7.12 )
• Crack control (Sec 7.13-7.21 )

V. Strength Desgn of Axially Loaded Prestressed Members

• P-M interaction in prestressed columns and piles (Sec 8.5-1.7)
• Buckling and P-Delta effects in slender prestressed columns (Sec 8.6-8.10 )
• Biaxial bending and transverse reinforcement (Sec 8.12-8.13 )
• Prestressed tension members (Sec 8.14-8.16 )

Grading Summary: Two midterm exams will cover Chs.1-4 (Service-load) and Chs. 4 (Ultimate-strength), 5, 7, respectively. The final exam will cover all material presented during the course. A term project will apply principles developed in the course to a practical situation and will require a literature review and the design of a simple structural system to be approved by the instructor. This will require self study of procedures given in one of the chapters of the text not covered in the course and determination of applicaple code requirements as to loadings.

Grader: The instructor

Grading Basis: (Design project is required for graduate credit; basis for undergraduate credit is given in parentheses)

Midterm Exam I ........................................... 15 % (20 %)
Midterm Exam II ......................................... 15 % (20 %)
Final Exam (Comprehensive)..................... 20 % (30 %)
Homeworks (Incl. Programming)................ 25 % (30 %)
Design Project.(Incl. Literature Review)... 25 %

Computers/Progamming: A student account on Sunset will be required for email and web access. Another student account on Sweetgum will be required for programming assignments and for access the finite element software packages, Patran/FEA . Example programs will be presented in class written in Fortran77. Fortran77 is available on Sweetgum. Source code will be distributed to students through the course web page.