CE 311: Design of Reinforced Concrete Structures - Spring 2025

• To learn the fundamentals of analyzing reinforced concrete structural members.
• To learn design of basic structural members of a reinforced concrete building.
• To learn overall structual design of a reinforced concrete building.

• Properties of concrete and steel.
• Design philosophies.
• Loads and load combinations.
• Analysis and design of beams, columns, slabs, stair case and shallow foundations.
• Ductile detailing.
• (if time permits: ) design of shear walls, seismic design.

• Reinforced Concrete Design - S Unnikrishna Pillai and Devdas Menon.

• Limit State Design of Reinforced Concrete Structures - P C Verghese.

• IS 456(2000): Plain and reinforced concrete - Code of Practice
• IS 875-1(1987): Code of practice for design loads (other than earthquake) for buildings and structures [Dead Loads]
• IS 875-2(1987): Code of practice for design loads (other than earthquake) for buildings and structures [Imposed Loads]
• IS 875-3(2015): Code of practice for design loads (other than earthquake) for buildings and structures [Wind Loads]
• SP 16(1980): Design aids for reinforced concrete to IS 456

Note:

• Please have a printed copy of the codes available during classes, tutorials and exams.
• During the exams, only printed copies of the codes will be allowed.

• Good background in Mechanics of Solids.
• Good background in Structural Analysis.
• Curiosity to learn the fundamentals behind construction of some of the largest structures like Hoover Dam and Burj Khalifa.

• Please be considerate about everyone's time.
• In all emails pertaining to this course, please have "CE311" in the subject line.
  • (note that there is no space or hyphen or anything between CE and 311)

Cheating cases (assignments/codes/exams/project) will be dealt with in accordance with the Institute norms. It is expected that everyone will uphold the honor code.

• Theory part comprises of 70% of the overall grading (remaining 30% is for laboratory)
• Following will be the weightage of different components of assessment for the theory part

• Assignments will involve two types of problems:
  • Set A: to be submitted for grading
  • Set B: to be practiced and will not be graded (this is treated as tutorial; help will be available from the TAs/instructor for solving, if needed)
• Exams will involve take home type analysis/design problems along with viva/presentations.
• Expect one assignment per week.

It is important to develop the habit of self-learning. A number of reading assignments and self-exercises will be given during the course. These will not be formally graded and it will be expected that students will go through them on a regular basis on their own.

• Introduction to design. Components of a building. Load path.

• Characterization and estimation of loads.
• IS 875. Characteristics loads.

• Visit of different RCC structures within the academic area.
• Discussion on structural components, dimensions, resisting actions and load path.
• Refer to Chapter 1 of the textbook.

• Structural systems. Framed systems and their analysis. Typology of different components of structural systems.
• Refer to Chapter 1 of the textbook.

• Analysis of composite sections. Calculation of neutral axis through equilibrium and moment of resistance.
• Discussions based on a typical beam/column reinforcement cage. Functions of longitudinal and transverse rebars for beams and columns.
• Concept of modular ratio.
• Concept of neutral axis of homogeneous and heterogeneous sections.
• Design philosophies; limit states of collapse and serviceability.
• Refer to Chapter 3 of the textbook.

• Introduction to IS 456.
• Stress-strain behaviour of concrete.
• Refer to Section 3 of IS 456.
• Design of RC beams.
• Concept of neutral axis of homogeneous and heterogeneous sections.
• Assumptions in the behaviour of RC beams. Concept of balanced, under-reinforced and over-reinforced sections.
• Analysis and design of singly-reinforced RC beams.

• Design of RC beams.
• Consideration of over-reinforced sections.
• Analysis and design of doubly-reinforced sections.

• Assignment 1 given, due on 5 Feb. (download from here)
• Failure modes of an RCC beam.
• Design of RC beams under shear.

• Design of RC beams.
• Consideration of T and L beams.
• Provisions of the Code for design of RCC beams.

• Assignment 2 given, due on 12 Feb. (download from here)
• Design of RC columns.

• Design of RC columns.

• Assignment 3 given, due on 19 Feb. (download from here)
• Design of RC columns.

• Design of RC columns.

• Assignment 4 given, due on 26 Feb. (download from here)
• Design of RC slabs.
• Behavior of slab as a plate, torsion near supported edges. Different cases of supporting conditions.
• One-way vs. two-way slab action.

• Design of RC slabs.

• Maha Shivaratri

• Design of RC slabs.

• Design of shallow foundations.
• Types of footings. Eccentricity. Failure modes and design considerations.

• Design of shallow foundations.

• Assignment 5 given, due on 2 Apr. (download from here)
• Design of shallow foundations.

• Design of staircases.

• Design of staircases.

• Assignment 6 given, due on 11 Apr. (download from here)
• Design of staircases.

• Detailing and construction practices.

• Detailing and construction practices.

• Detailing and construction practices.

• Good Friday

• Detailing and construction practices.