Dr. Mervyn J. Kowalsky Spring Semester – 2015 1 CE 726 – ADVANCED THEORY OF CONCRETE STRUCTURES COURSE OVERVIEW AND OBJECTIVE This course focuses on the non-linear behavior of reinforced concrete, with a special emphasis on seismic design issues. The emphasis is on basic behavioral characteristics, and the primary course objective is to develop a capability in the students to apply the fundamentals of reinforced concrete behavior to the design of reinforced concrete systems. In order to accomplish this objective, we will study material level behavior, member level behavior, and system level behavior. Some homework assignments demonstrate these concepts through the use of a sample structure which will be distributed during the semester. PREREQUISITES Reinforced Concrete (CE 327 or equivalent), Structural Analysis (CE 325 or Equivalent). HW 1 will cover the knowledge that students are expected to have prior to entering the course. Without any in-class discussion, students must be able to solve the problems in HW 1. Students are strongly encouraged to review their notes and homework from the prerequisite courses. Students will need to know how to use Matlab. Software written in Matlab will be distributed and demonstrated that will facilitate some of the homework problems. TEXTS 1. Seismic Design of Reinforced Concrete and Masonry Buildings. Thomas Paulay and Nigel Priestley. John Wiley, 1992. Optional. (Denoted by PP in Schedule) 2. Seismic Design and Retrofit of Bridges. Nigel Priestley, Frieder Seible, and Michele Calvi. John Wiley, 1996. Optional. (Denoted by PSC in Schedule) 3. Reinforced Concrete: Mechanics and Design. Macgregor, any edition. (Denoted by M in Schedule). Optional. 4. ACI 318-14. Optional. GRADING Homework – 30% (7 Assignments planned) NOTE: While it is good to discuss concepts with your classmates, all homework assignments must be done individually, and be unique to each student. Midterm Exam – 25%; Final Exam - 45%; Only FE Exam approved calculators are allowed. Please see: https://ncees.org/Exams/Exam-day_policies/Calculator_policy.php LECTURES Tuesday and Thursday: 3:00-4:15PM Mann 406. The only electronic device to be used in class is your calculator. Keep your phones and other devices off and in your backpack. OFFICE HOURS AND CONTACT INFORMATION Tuesday and Thursday: 1:30-2:30 (On-campus students – EOL Students arranged as needed). Phone: 919-515-7261 Email: kowalsky@ncsu.edu; COURSE WEBSITES http://courses.ncsu.edu/ce726/ (to enter message board) http://courses.ncsu.edu/ce726/lec/601/ (to download files) http://engineeringonline.ncsu.edu/onlinecourses/coursehomepages/SPR-2015/CE726.html for engineering online video and note access) Dr. Mervyn J. Kowalsky Spring Semester – 2015 Lecture Date Topic 1 1-8 2 3 1-13 1-15 Components of Concrete Buildings and Bridges The Capacity Design Philosophy NO CLASS Concrete Mixes and Material Properties 4 1-20 Monotonic and Cyclic Uniaxial Concrete Behavior 5 1-22 6 7 8 9 10 1-27 1-29 2-3 2-5 2-10 11 2-12 12 13 14 15 16 2-17 2-19 2-24 2-26 3-3 3-5 3-10 3-12 3-17 3-19 3-24 3-26 3-31 4-2 4-7 4-9 4-14 4-16 4-21 4-23 Effect of Multi-axial stresses on concrete Steel properties, monotonic and cyclic behavior Monotonic moment curvature analysis Equivalent stress blocks Importance of ductility and factors that influence it Capacity design sequence revisited Developing a structural model for RC building frames Developing a structural model for RC building frames Moment re-distribution Beam flexure Min steel issues Max steel issues Beam Anchorage Midterm Spring Break Spring Break Beam Anti-buckling; Overstrength revisited Shear Shear Column demands Column long bar design, splices, transverse steel Spring Holiday Column bi-axial bending Beam to Column Joint – interior building joint Beam to Column Joint – interior building joint Beam to Column Joint – exterior building joint Beam to Column Joint – exterior building joint Overview of concrete structure assessment and Pushover analysis Final Exam 1:00-4:00PM 17 18 19 20 21 22 23 24 25 26 27 5-7 2 Read M45-68 M87-92 PP95-106 M68-74 Paper - M M92-98 PP115-118 PSC298-301 PP135-157 HW HW Set Due 1 2 1 3 2 4 3 5 4 6 5 7 6 PP158-185 PP188-210 PP210-240 PP250-294 M604-714 7 Dr. Mervyn J. Kowalsky Spring Semester – 2015 3 HOMEWORK PROBLEMS HW 1: Reviewing Undergraduate Concrete Calculating Mn for singly, doubly reinforced beams and columns. HW 2: Material response and section analysis Effect of confinement on stress/strain response. Monotonic and cyclic moment vs. curvature analysis. HW 3: RC Building Frame Analysis – Introduction of the Frame Building Modelling of concrete moment frame under gravity and lateral forces Moment re-distribution HW 4: Beam Design and Detailing (Frame Building) Beam design for flexure (confinement, anti-buckling, overstrength calculations) Beam shear HW 5: Column design (Frame Building) Column demands Longitudinal and transverse steel Biaxial bending HW 6, 7: Joints and Slabs Interior and Exterior Joint design (Frame Building) Slabs and Diaphragms Two way slabs. DISTANCE EDUCATION ISSUES For students taking the course via distance, all assignments will be due by 5PM Eastern on the same date as for on campus students by fax or email to EOL office. The mid-term (75 minute) and final exam (3 hours) may be taken anytime starting 8AM two days prior, up to 5PM eastern, on the date of the on-campus exam. The exam must be received at the EOL office by 9AM Eastern on the date after the on-campus exam. The original hardcopy of both mid-term and final must be sent to the EOL office. Please email any questions you may have to me, and I will collect them and take a portion of class time to address the questions. In some cases, I may simply reply to your email and not address the question in class. If you feel a conversation is needed about a question, please contact me and I will arrange a phone call. Also, I encourage the use of the message board by all students. For on-campus students: Please refrain from sending email and instead come to my office to discuss technical questions in person. CAPTURED LECTURES This on campus course will be captured and distributed via the Internet and/or electronic media as part of the Engineering Online (EOL) program for the distance students. These video recordings may contain an image of you entering the classroom, asking a questions or being a part of the studio Dr. Mervyn J. Kowalsky Spring Semester – 2015 4 class. Please notify Dr. Linda Krute, Director of EOL, in writing at ldkrute@ncsu.edu if you DO NOT want your image to be included in the lecture presentation. If we do not hear from you after the first week of the class, we will assume that you are in agreement with this procedure. ATTENDANCE POLICY Attendance is mandatory, unless prior arrangements are made, or due to illness or other emergencies. Students are responsible for all material presented in class. See http://policies.ncsu.edu/regulation/reg-02-20-03. This is an EOL course, and all students will be given access to all online materials, including video lectures. On-campus students must still attend class, with the exceptions noted above. ACADEMIC INTEGRITY STATEMENT Students will adhere to the academic policy set forth by University Code of Student Conduct (http://policies.ncsu.edu/policy/pol-11-35-01) Plagiarism and cheating are attacks on the very foundation of academic life, and cannot be tolerated within universities. Section eight (8) of the Code defines academic dishonesty and provides information on potential sanctions for violators of academic integrity. You will be asked to sign the following statement on each test and on the final: “I have neither given nor received any unauthorized aid on this test.” NCSU STATEMENT FOR STUDENTS WITH DISABILITIES: Reasonable accommodations will be made for students with verifiable disabilities. In order to take advantage of available accommodations, students must register with Disability Services for Students at 1900 Student Health Center, Campus Box 7509, 515-7653. http://www.ncsu.edu/provost/offices/affirm_action/dss/ For more information on NC State's policy on working with students with disabilities, please see http://policies.ncsu.edu/regulation/reg-02-2001