CivilJungle

  • Home
  • Civil
    • Detail A to C >>
      • Aggregate
      • Beam
      • Bitumen
      • Brick
      • Bridge
      • Cement
      • Civil
      • Column
      • Concrete
    • Detail D to I >>
      • Dampness
      • Design
      • Difference
      • Electrical
      • Excel Sheet
      • Flooring
      • Formwork
      • Foundation
      • Irrigation
    • Detail J to R >>
      • Mortar
      • Plaster
      • Pile
      • Plumbing
      • Quantity Survey
      • Reinforcement
    • Detail S to S >>
      • Sampling
      • Self Compact Concrete
      • Slab
      • Soil Mechanics
      • Staircase
      • Stone
      • Survey
    • Detail T to Z >>
      • Technology
      • Test
      • Transportation
      • Window
      • Wood
  • Difference
    • Difference Between A to C >>
      • Difference Between 33, 43 and 53 Grade Cement
      • Difference Between Asphalt and Bitumen
      • Difference Between Beam and Column
      • Difference Between Bitumen and Tar
      • Difference Between Bridge and Culvert
      • Difference Between Carpet Area and Built-up Area
      • Difference Between CPM and PERT/PERT Vs CPM
    • Difference Between F to L >>
      • Difference Between Fat Lime and Hydraulic Lime
      • Difference Between Flexible Pavement and Rigid Pavement
      • Difference Between Flyover and Bridge
      • Difference Between Footing and Foundation
    • Difference Between L to M >>
      • Difference Between Lap Length and Development Length
      • Difference Between Lime and Cement
      • Difference Between M Sand Vs River Sand
      • Difference Between M25 and M30 Concrete
      • Difference Between Mortar and Concrete
    • Difference Between N to P >>
      • Difference Between One Way Slab and Two Way Slab
      • Difference Between OPC Vs PPC
      • Difference Between Plasticizer And Superplasticizer in Civil
      • Difference Between Plinth Level, Sill Level, and Lintel Level.
    • Difference Between P to W >>
      • Difference Between Pre-Tensioning and Post-Tensioning
      • Difference Between Short Column and Long Column
      • Difference Between Timber And Wood
  • Excel Sheet
    • How to >>
      • How to Building Construction Process Step by Step
      • How to Calculate Slab Steel Quantity from Drawing | BBS of Slab
      • How to Calculate Staircas
      • How to Excavation Calculation in Excel Sheet
      • How to Find House Construction Cost
    • Building Estimation Step by Step In Excel Sheet
    • Estimation for Building Works
    • House Construction Cost Calculator Excel Sheet
    • House Construction Cost Calculator Excel Sheet For Ground Floor(G.F.), G.F.+1, G.F.+2, G.F.+3,
  • Tools
    • Rate Analysis >>
      • Rate Analysis of Aluminum Door
      • Rate Analysis of Wooden Door
      • Rate Analysis of Brick Work
      • Rate Analysis for Concrete
      • Rate Analysis for Dry Lean Concrete
      • Rate Analysis of Plastering
    • Brick Masonry Calculator
    • Calculator for Cutting Length of Stirrups
    • Concrete Material Calculator
    • House Construction Cost Calculator
    • Plaster Calculator
    • Steel Bar Calculation
    • Trapezoidal Footing Calculato
  • IS Code
    • Is 1200 Important Point Part-1
    • IS Code for Civil Engineer [Q&a]
    • IS 456 Most Important Point Part- 1
    • IS 516:1959 Most Important Point (Method of Tests For Strength of Concrete)
  • हिंदी

Definition of Shear Force and Bending Moment | What Is Shear Force | What Is Bending Moment | Relation Between Loading, Shear Force & Bending Moment

Shear Force and Bending Moment

Important Point

  • Definition of Shear Force and Bending Moment
    • Shear Force
    • Bending Moment
  • What Is Shear Force : Sign Convention of Shear Force:
  • What Is Bending Moment : Sign Convention for Bending Moment:
  • Relation Between Loading, Shear Force & Bending Moment:
    • What Is Shear Force and Bending Moment?
    • Definition of Shear Force and Bending Moment
    • What Is Meant by Shear Force?
    • Shear Force
    • Bending moment
    • Shear Force and Bending Moment:
    • Shear Forces
    • What Is Shear Force?

Definition of Shear Force and Bending Moment

Shear Force

Shear Force

Shear force is the unbalanced vertical force which is acting on to the right or left of the section.It’s also termed as aligned forces pushing one part of the body in the specific direction, and the other part of the body is another direction.

Sometimes, a crack is developed in a body from the parallel shear force acting in a different direction at another point of the body. Colinear forces are also termed as compressive forces.

Also, Read: What Is a Brick Bat Coba |  Procedure of Brick Bat Coba Waterproofing | Advantages &  Disadvantage of Brick Bat Coba Waterproofing

Bending Moment

Bending Moment

Bending moment is the algebraic sum of all the moment of forces, according to the right or left of the section. It’s the reaction which is induced in a structural element due to external force or moment is applied.

In the equilibrium position, the moment which is created by external forces is balanced by the couple induced by the internal load; this internal couple is called a bending moment.

What Is Shear Force : Sign Convention of Shear Force:

Shear Force

Shear force is an unbalanced vertical force, so it tends to slide one portion of the beam upward or downward with respect to the other.

Shear force at a section is considered as positive when the left-hand portion tends to slide upward, or the right-hand portion tends to slide downward.

Same as a shear force at a section is negative when the left-hand portion tends to slide downward, or the right-hand portion tends to slide upward.

Also, Read; Bar Bending Schedule Formulas As Per IS:2502-1963 | Unit Weight of Steel Bars

What Is Bending Moment : Sign Convention for Bending Moment:

Bending Moment position

We considered bending moment at a section is positive when it tends to bend the beam at a point to a curvature having a concavity at the top or when the moments are acting clockwise direction to the left or anti-clockwise direction to the right.

On the other hand, we considered bending moment at a section is negative when it tends to bend the beam at a point to a curvature having convexity at the top or moments are taken anti-clockwise direction to the left or clockwise direction to the right.

Sometimes the positive bending moment is termed as sagging moment, and the negative bending moment is termed as a hogging moment.

Also, Read: Brick Masonry Calculator | Brick Masonry Calculator | Size of Bricks | Calculate Brick Work

Relation Between Loading, Shear Force & Bending Moment:

Shear + Bending moment

The following relations are essential for loading, shear force and bending moment relation-

If there is a point load at a section on the beam, then the shear force suddenly changes(i.e. the shear force line is vertical). But the bending moment remains the same.

If there is no load between two points, then the shear force does not change (I.e. shear force line is horizontal) but the bending moment changes linearly (I.e. bending moment line is an inclined straight line).

If there is a uniformly distributed load between two points, then the shear force changes linearly (I.e. shear line is an inclined straight line). But the bending moment changes according to the parabolic law(i.e. bending moment line will be parabola).

If there us a uniformly varying load between two points then the shear force changes according to the parabolic law(i.e. shear force line will be parabola) but the bending moment changes according to the cubic law.

Where shear force changes, it’s sign there bending moment is maximum.

Where bending moment changes, it’s a sign that point is known as the point of contra flexure or inflation point.

Also, Reaad: What Is Plumbing | Systems of Plumbing | Difference Between One pipe, Two Pipe, Single Stack, and Single Stack Partially Ventilated | How to Choose of Plumbing System.

Short Note

What Is Shear Force and Bending Moment?

Shear and bending moment diagrams are analytical tools used in conjunction with structural analysis to help perform structural design by determining the value of shear force and bending moment at a given point of a structural element such as a beam.

Definition of Shear Force and Bending Moment

Shear force is taken +ve if it produces a clockwise moment and it is taken -ve when it produces an anticlockwise moment. Bending moment at any point along a loaded beam may be defined as the sum of the moments due to all vertical forces acting on either side of the point on the beam.

What Is Meant by Shear Force?

Shearing force is defined as the force transverse to the beam at a given section tending to cause it to shear at that section.

Shear Force

A shear force is a force applied perpendicular to a surface, in opposition to an offset force acting in the opposite direction. This results in a shear strain. In simple terms, one part of the surface is pushed in one direction, while another part of the surface is pushed in the opposite direction.

Bending moment

In solid mechanics, a bending moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend. The most common or simplest structural element subjected to bending moments is the beam.

Shear Force and Bending Moment:

Its baseline is equal to the span of the beam, drawn on a suitable scale. For point loads S.F. diagram has a straight horizontal line, for UDL( Uniformly Distributed Load), It has straight inclined lines, and for uniformly varying loads it has a parabolic curve.

Shear Forces

Shear force is a force acting in a direction that’s parallel to (over the top of) a surface or cross section of a body, like the pressure of air flow over an airplane wing. The word shear in the term is a reference to the fact that such a force can cut, or shear, through the surface or object under strain.

What Is Shear Force?

Shear force is the force acting on a substance in a direction perpendicular to the extension of the substance, acting in a direction to a planar cross section of a body. Shear force is also known as shearing force.

Like this post? Share it with your friends!

Suggested Read –

  • Top 10 Tiles Companies in India 2020
  • What Is Plaster | Requirement of Good Plaster | Types of Plasters
  • What Is Beam Bridge | Types of Beam Bridges | Beam Bridge Works | Advantages & Disadvantages of Beam Bridges
  • What Is Hydraulic Cement | Hydraulic Cement Uses | How to Apply Hydraulic Cement | Advantages & Disadvantages of Hydraulic Cement
  • What Is Rock Cycle | Types of Rocks | Processes in the Rock Cycle | What Are the Steps of the Rock Cycle | Uses of Rocks in the Construction
  • What is Waffle Slab| Waffle Slab Details | Advantages & Disadvantages Waffle Slab | Waffle Slab Design | Construction of Waffle Slab

By Krunal Rajput

About Krunal Rajput

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Write for Us and Earn Money

WRITE For US

Popular Post

What Does Parapet Mean | Types of Parapet Wall | Uses of Parapet Wall
What Is a Flight of Stairs | Types of Stairs | How Many Stairs in a Flight | Some Facts About Stairwells
Cinder Block Vs Concrete Block | What Is Cinder Blocks | What Is Concrete Blocks
What Is Shoring In Construction | Type of Shoring
Floating Slab Vs Monolithic Slab | What Is Monolithic Slab | What Is Floating Slab
H-Beam vs I-Beam | What Is H-Beam | What Is I-Beam

MIND BEHIND CIVILJUNGLE

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil/Mechanical/Electrical Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

ADVERTISE

At CivilJungle, we clarify civil engineering and publish all the happenings & news of civil engineering.

Get Traffic & Exposure. We help brands optimize their online presence & performance.

MORE DETAIL

CONNECT WITH US


Privacy Policy | Contact Us | Cookie Policy | Sitemap | Sitemap for Hindi

............................... .............................. .............................

© Copyright 2019-2022 CivilJungle.com | The Content May Not Be Reproduced On Other Websites | Website Maintained By CivilJungle