All Materials regarding to B.tech R-20 in Civil Engineering in 3rd Year 1st Semester with unit wise for Every Subjects are available.
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| Civil 3-1 DDRCS | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5 | Download |
Civil 3-1 DDRCS Important Topics
UNIT –I
Design Methods
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.
All units i.e. from unit II to unit V are to be taught in Limit State Design.
UNIT –II
Design for Flexure and Shear: Design of singly reinforced beams- effective depth-
Moment 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.
UNIT – III
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.
UNIT – 1V
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)
UNIT –V
Footings: Types of footings – Design of isolated footings – pedestal, square, rectangular and
circular footings subjected to axial loads, uni-axial bending moment.
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