Hi guys in this lecture we study the new topic Different Types of load so without westing of let's see

Normally beam is horizontal and loads acting on beams is vertically. 

Different Types of load 

  There are three types of loads acting on the beams

1. Point load

2. Uniformly varying load

3. Uniformly distributed load 

 Let's start with the definitions and type wise description

1. Point load

The load is one which acts at the point. Point load acting on small distributed area.

A point load is a type of load that is applied at a specific point or location on a structure or component. It is a concentrated force that acts at a single point rather than being distributed across an area or along a line. Point loads are often represented by arrows or vectors to indicate the direction and magnitude of the applied force.

Point loads can have various applications and effects in engineering and structural analysis. Here are a few examples:

Structural Analysis: In structural engineering, point loads are used to represent concentrated forces or loads acting on a structure. For instance, when analyzing a beam, a point load may represent the force exerted by a weight or object placed at a specific location along the beam. The reaction forces and stresses caused by the point load are evaluated to assess the structural integrity and determine the load-bearing capacity of the beam.

Supports and Connections: Point loads are also considered when designing supports and connections in structures. For example, in the design of a column base plate, a point load represents the force transferred from the column to the base plate. The connection needs to be designed to withstand the applied point load and ensure stability and safety.

Bridge Design: Point loads are crucial in the design of bridges, particularly in determining the loading conditions and assessing the strength requirements. Vehicles passing over a bridge exert point loads on the supporting members at specific locations, such as the wheel axles. These point loads are considered to evaluate the bridge's response and design the necessary reinforcement and structural elements.

Mechanical Systems: Point loads are also encountered in mechanical systems and machines. They can represent forces applied to components, such as bearings, gears, or shafts. The point load affects the stress distribution, bearing capacity, and durability of the components, and should be taken into account during the design and analysis process.

It's important to note that point loads are idealizations used for simplification in analysis and design. In reality, most loads are distributed or have varying magnitudes along a length or an area. However, by representing these loads as point loads, engineers can make reasonable approximations and perform calculations to determine the overall behavior and response of the system.

Point load 

2. Uniformly varying load 

Uniformly varying load is spread the beam in such a way that the load varies from the point to point on the beam .

 Load is zero at one end and increase uniformly to other end. 

A uniformly varying load, also known as a triangular load, is a type of load that changes linearly along the length or area of a structure. Unlike a point load or a uniformly distributed load, which have constant magnitudes, a uniformly varying load increases or decreases in intensity from one end to the other in a linear manner.

In the case of a one-dimensional structure, such as a beam or a bar, a uniformly varying load is applied along the length of the structure and the load magnitude varies continuously. It typically starts at zero or a minimum value at one end and increases uniformly to a maximum value at the other end. The load distribution resembles a triangular shape, hence the name triangular load.

For example, consider a simply supported beam with a uniformly varying load applied. The load magnitude at any point along the beam can be calculated using the equation:

Load magnitude = (q_max * x) / L

where q_max is the maximum load intensity, x is the distance from the starting point of the load, and L is the length of the beam. As x increases from 0 to L, the load magnitude increases linearly from 0 to q_max.

Uniformly varying loads can also be encountered in two-dimensional structures, such as plates or slabs. In this case, the load intensity changes linearly across the area of the structure.

Analyzing the effects of a uniformly varying load involves determining the reactions, internal forces (such as shear and bending moments), and deflections in the structure. This can be done using appropriate equations and methods based on structural mechanics principles.

It's worth noting that while a uniformly varying load is a simplified model for certain load distributions, real-life loads can have more complex variations. However, the triangular load approximation allows engineers to estimate the structural response and design adequate supports or reinforcements to ensure the structural integrity and safety of the system. 

Uniformly varying load

3. Uniformly Distributed Load 

Uniformly distributed load is spread over beam in such a way that loading 'w' is uniform along length.       

The rate of loading expressed in        w N/m. 

The total load is converted into point load, acting on the centre.

A uniformly distributed load (UDL), also known as a uniform load or a uniformly distributed load, is a type of load that is spread evenly over a certain length, area, or volume of a structure. Unlike a point load or a triangular load, which have concentrated or varying magnitudes, a uniformly distributed load has a constant intensity throughout the given region.

In the case of a one-dimensional structure, such as a beam or a bar, a uniformly distributed load is applied along the length of the structure and the load magnitude remains constant. For example, a beam with a uniformly distributed load would have a consistent load intensity applied over its entire length. This can be represented by a constant force per unit length.

For instance, if a beam is subjected to a uniformly distributed load with intensity q, the load can be expressed as:

Load magnitude = q * L

where q is the load intensity per unit length and L is the length of the beam. The total load magnitude is obtained by multiplying the load intensity by the length.

In the case of a two-dimensional structure, such as a plate or a slab, a uniformly distributed load is applied over the entire area of the structure. The load magnitude remains constant across the entire region.

Analyzing the effects of a uniformly distributed load involves determining the reactions, internal forces (such as shear and bending moments), and deflections in the structure. This can be done using appropriate equations and methods based on structural mechanics principles.

It's important to note that a uniformly distributed load is an idealized assumption used in engineering calculations and design. In reality, loads may not be perfectly uniform, and variations or concentrated loads may exist. However, by assuming a uniformly distributed load, engineers can simplify the analysis and design process while still achieving reasonable accuracy for many practical applications.

Uniformly distributed load

So in this article we learn about type of load Important topic Different Types of load in mechanical related work hope you understand well. Thanks for reading it.