**ELEMENTS OF CIVIL ENGINEERING AND MECHANICS**

**15CIV13/23**

**COURSE OBJECTIVES**

The objectives of this course is to make students t o learn basics of Civil Engineering concepts and infrastructure development , solve problems involving Forces, loads and Moments and know their applicatio ns in allied subjects. It is a pre-requisite for several courses involving Forces, Moments, Centroids, Moment of inertia and Kinematics.

**Module 1: Introduction to Civil Engineering &Engineering Mechanics**

Introduction to Civil Engineering Scope of different fields of Civil Engineering – Su rveying, Building Materials, Construction Technology, Geotechnical Engineering, Structural Engineering, Hydraulics, Water Resources and Irrigation Engineering, Transportation Engineering, Environmen tal Engineering.

Infrastructure: Types of infrastructure, Role of Civil Engineer in theInfrastructural Development, Effect of the infrastructural facilities onsocio-economic development of a country.

Roads: Classification of Roads and their functions, Comparison of Flexible and Rigid Pavements (Advantages and Limitations)

Bridges: Types of Bridges and Culverts, RCC, Steel and Composite Bridges

Dams: Different types of Dams based on Material, St ructural behavior and functionality with simple sketches.

Introduction to Engineering Mechanics: Basic idealizations – Particle, Continuum and Rigid body; Newton’s laws, Force and its characteristics, types of forces-Gravity, Lateral and its distribution on surfaces, Classification of force systems, Principle of physical independence, superposition, transmissibility of forces, , Introduction to SI units. Couple, Moment of a couple, Characteristics of couple, Moment of a force, Equivalent force – Couple system; Numerical problems on moment of forces and couples, on equivalent force – couple system.

**Module 2: Analysis of Concurrent Force Systems**

Concepts: Resultants and Equilibrium Composition of forces – Definition of Resultant; Composition of coplanar -concurrent force system, Parallelogram Law of forces, Principle of resolved parts;

Numerical problems on composition of coplanar concurrent force systems. Equilibrium of forces – Definition of Equilibrant; Conditions of static equilibrium for different force systems, Lami’s theorem; Numerical problems on equilibrium of coplanar – concurrent and non-concurrent force systems.

Application- Static Friction in rigid bodies in contact Types of friction, Laws of static friction, Limiting friction, Angle of friction, angle of repose; Impending motion on horizontal and inclined planes; Numerical Problems on single and two blocks on inclined planes

**Module – 3 Analysis of Non-Concurrent Force Systems**

Concepts: Resultants and Equilibrium Composition of coplanar – non-concurrent force system, Varignon’s principle of moments; Numerical problems on composition of coplanar non-concurrent Force system.

Application-Support Reaction in beams Types of Loads and Supports, statically determinate beams, Numerical problems onsupport reactions for statically determinate beams with Point load (Normal and inclined) and uniformly distributed and uniformly varying loads and Moments

**Module 4 Centroids and Moments of Inertia of Engineering Sections:**

Centroids Introduction to the concept, centroid of line and area, centroid of basic geometrical figures, computing centroid for– T, L, I, Z and full/quadrant circular sections and their built up sections. Numerical problems Moment of Inertia Introduction to the concept, Radius of gyration, Parallel axis theorem, Perpendicular axis theorem, Moment of Inertia of basic planar figures, computing moment of Inertia for – T, L, I, Z and full/quadrant circular sections and their built up sections. Numerical problems

**Module 5: Kinematics**

Concepts and Applications Definitions – Displacement – Average velocity – Instantaneous velocity – Speed – Acceleration – Average acceleration – Variable acceleration – Acceleration due to gravity – Newton’s Laws of Motion.

Rectilinear Motion–Numerical problems.

Curvilinear Motion – Super elevation – Projectile Motion – Relative motion – Numerical problems.

Motion under gravity – Numerical problems.**COURSE OUTCOMES**

After a successful completion of the course, the student will be able to:

1. Know basics of Civil Engineering, its scope of study, knowledge about Roads, Bridges and Dams;

2. Comprehend the action of Forces, Moments and other loads on systems of rigid bodies;

3. Compute the reactive forces and the effects that develop as a result of the external loads;

4. Locate the Centroid and compute the Moment of Inertia of regular cross sections.

5. Express the relationship between the motion of bodies and

6. Equipped to pursue studies in allied courses in Mechanics.**TEXT BOOKS**

1. Elements of Civil Engineering and Engineering Mechanics by M.N. Shesha

Prakash and Ganesh. B. Mogaveer, PHI Learning, 3rd Revised edition (2014)

2. Engineering Mechanics-Statics and Dynamics by A Nelson, Tata McGraw Hill

Education Private Ltd, New Delhi, 2009.

3. Elements of Civil Engineering (IV Edition) by S.S. Bhavikatti, New Age

International Publisher, New Delhi, 3rd edition 2009.**REFERENCES**

1. Engineering Mechanics by S.Timoshenko,D.H.Young, and J.V.Rao, TATA

McGraw-Hill Book Company, New Delhi

2. Beer FP and Johnson ER, “Mechanics for Engineers- Dynamics and

Statics”- 3rd SI Metric edition, Tata McGraw Hill. – 2008

3. Shames IH, “Engineering Mechanics – Statics & Dynamics”- PHI – 2009