## Elements Of Civil Engineering And Engineering MechanicsIntroduction to Civil Engineering, Scope of different field of Civil Engineering - Surveying, Building Materials, Construction Technology, Geotechnical Engineering, Structural Engineering, Hydraulics, Water Resources and Irrigation Engineering, Transportation Engineering, Environmental Engineering.Infrastructure: Types of infrastructure, Role of Civil Engineer in the Infrastructural Development, Effect of the infrastructural facilities on socio-economic development of a country.Roads: Type of roads, Components and their functions.Bridges and Dams: Different types with simple sketches.Introduction to Engineering mechanics: Basic idealisations - Particle, Continuum, Rigid body and Point force; Newton s laws of motion, Definition of force, Introduction to SI units, Elements of a force, Classification of force and force systems; Principle of physical independence of forces, Principle of superposition of forces, Principle of transmissibility of forces; Moment of a force, couple, moment of a couple, characteristics of couple, Equivalent force - couple system; Resolution of forces, composition of forces; Numerical problems on moment of forces and couples, on equivalent force - couple system.Composition of forces - Definition of Resultant; Composition of coplanar - concurrent force system, Principle of resolved parts; Numerical problems on composition of coplanar concurrent force systems.Composition of coplanar - non-concurrent force system, Varignon s principle of moments; Numerical problems on composition of coplanar non-concurrent force systems.Centroid of plane figures; Locating the centroid of triangle, semicircle, quadrant of a circle and sector of a circle using method of integration, Centroid of simple built up sections; Numerical problems.Equilibrium of forces - Definition of Equilibrant; Conditions of static equilibrium for different force systems, Lami s theorem; Numerical problems on equilibrium of coplanar concurrent force system.Types of supports, statically determinate beams, Numerical problems on equilibrium of coplanar non concurrent force system and support reactions for statically determinate beams.Friction - Types of friction, Laws of static friction, Limiting friction, Angle of friction, angle of repose; Impending motion on horizontal and inclined planes; Wedge friction; Ladder Friction; Numerical problems.Moment of inertia of an area, polar moment of inertia, Radius of gyration, Perpendicular axis theorem and Parallel axis theorem; Moment of Inertia of rectangular, circular and triangular areas from method of integration; Moment of inertia of composite areas; Numerical problems. |

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### Contents

Introduction to Civil I | 1-1 |

Chapter3 Resultant of NonConcurrent Force System 31 to 332 | 3-1 |

Chapter4 Centroid of Plane Figures 41 to 442 | 4-1 |

Chapter5 Equilibrium of Bodies j 5 1 to 5 | 5-1 |

### Common terms and phrases

Anna University applied assumed axis basic beam bricks bridges cable cement centroid civil engineering clockwise concrete Concurrent Force System consider construction contact surfaces coplanar dams Determine direction distance Draw F.B.D. ECE&EM engineering mechanics equation F.B.D. of block figure floor force of friction forces acting formwork free body diagrams frictional force geometry gives Hence hinged horizontal impending motion inertia kN/m ladder lime line of action load mass materials moment of inertia N force Neglect friction non-concurrent obtained parallel axes theorem parallelogram particle perpendicular plane principle of moments radius radius of gyration rectangle Refer Fig right angles roads roller shown in Fig sine rule sliding Solution static friction steel strength strength of materials strip structures system in equilibrium theorem of moments three forces triangle types Varignon's theorem vertical wedge weight