JNTUK R20 3-1 DDRCS Material/Notes PDF Download


JNTUK R20 3-1 DDRCS Material/Notes PDF Download

Students those who are studying JNTUK R20 Civil Branch, Can Download Unit wise R20 3-1 Design & Drawing of Reinforced Concrete Structures Material/Notes PDFs below.


JNTUK R20 3-1 DDRCS Material/Notes PDF Download


  • Familiarize Students with different types of design philosophies
  • Equip student with concepts of design of flexural members
  • Understand Concepts of shear, bond and torsion
  • Familiarize students with different types of compressions members and Design
  • Understand different types of footings and their design


Working stress method: Elastic theory: design constants, modular ratio, neutral axis depth and moment of resistance – balanced, under-reinforced and over-reinforced sections. Design of singly and doubly reinforced beams, IS Code Provisions.

Limit State Design: Basic statistical principles –Characteristic strength – Characteristic loads – Partial load and safety factors – stress-strain curves for HYSD bars and MS bars. Assumptions – stress block parameters – Moment of Resistance

Download UNIT-1 Material PDF | Reference-2


Design for Flexure and Shear: Design of singly reinforced beams- effective depthMoment of Resistance- Doubly reinforced and flanged (T) beams- Minimum depth – Minimum and Maximum Flexural Tension Reinforcement – Design of Flanged Sections (T & L)- Effective width of flange – Analysis and Design Problems.

Design for Shear and Torsion: Analysis and design of sections for shear and torsion – bond, anchorage and development length, I.S. code provisions. Design examples in simply supported and continuous beams, detailing.

Download UNIT-2 Material PDF | Reference-2


Slabs and Serviceability: Classification of slabs, design of one – way slabs, one way continuous slab using IS Coefficients (Conventional) –Design of two – way slabs – simply supported slabs and slabs with various edge conditions using IS Coefficients. Design of Stair case Limit state of serviceability: Deflection, cracking and IS code provisions for beams and slabs.

Download UNIT-3 Material PDF | Reference-2


Design of Compression members: Effective length, Braced and un-braced columns – IS Code provisions, Design of short and long columns under axial loads, uniaxial bending and biaxial bending (Demonstration using SP 16)

Download UNIT-4 Material PDF | Reference-2


Footings: Types of footings – Design of isolated footings – pedestal, square, rectangular and circular footings subjected to axial loads, uni-axial bending moment.

Download UNIT-5 Material PDF | Reference-2

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NOTE: All the designs to be taught in Limit State Method Following plates should be prepared by the students.

  • Reinforcement detailing of T-beams, L-beams and continuous beams.
  • Reinforcement detailing of columns and isolated footings.
  • Detailing of one-way, two-way and continuous slabs and waist-slab staircase.

FINAL EXAMINATION PATTERN: The end examination paper should consist of Part A and Part B. Part A consists of two questions in Design and Drawing out of which one question is to be answered. Part B should consist of five questions and design out of which three are to be answered. Weightage for Part – A is 40% and Part- B is 60%.


1. Limit State Design, A. K. Jain

2. Design of Reinforced concrete Structures, N. Subrahmanyian

3. Reinforced Concrete Structures, S. Unnikrishna Pillai & Devdas Menon, Tata Mc.Graw Hill, New Delhi.


  1. R C C Design, B.C Punmia, A. K. Jain and A. K Jain. Lakshmi Publications
  2. Reinforced Concrete Structures, S. Unnikrishna Pillai &Devdas Menon, Tata C.Graw Hill, New Delhi.
  3. Design of Reinforced concrete Structures, N.Subrahmanian, and Oxford University Press.
  4. Limit state design of reinforced concrete structures by P C Varghese, PHI Learning pvt. Ltd.

IS Codes:

1) IS -456-2000 Code of practice for Reinforced Concrete Structures (Permitted to use in examination hall)

2) IS – 875

3) SP-16


  • Work on different types of design philosophies
  • Carryout analysis and design of flexural members and detailing
  • Design structures subjected to shear, bond and torsion
  • Design different type of compression members and footings

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