Table of Contents
What is influence line diagram and its significance?
Influence Line Diagram It’s a diagram which shows the reactions, Shear force and Bending moment at each and every section or instant at any distance of any span that you want to find out. In short, Influence Line Diagram shows the influence or effect of loads or reaction on the span.
What is influence line in bridge?
An Influence line is presented on the traffic lane and represents a specific component of analysis results obtained from static analyses of a bridge structure subjected to a unit load moving along the traffic lane. Define vehicle loads, method of applying the moving loads and traffic lanes or traffic lane surfaces.
What is the use of influence line?
The most important use of influence line is finding out the location of a load for which certain response will have a maximum value. For example, we may need to find the location of a moving load (say a gantry) on a beam (say a gantry girder) for which we get the maximum bending moment at a certain point.
What are the application of influence line diagram?
Applications of Influence Line diagram. From the influence line we can determine the response (reaction, shear, moment etc.) of a structure due to multiple point loads as well as due to uniform load . Influence line also helps in finding the maximum value of a response function.
What are the uses of influence line Mcq?
An influence line for a given function, such as a reaction, axial force, shear force, or bending moment, is a graph that shows the variation of that function at any given point on a structure due to the application of a unit load at any point on the structure.
What is an influence surface?
An influence surface is generated for a specific point along a structure subjected to moving load, where the variation of a given response quantity (axial, shear, or flexural force, reaction, etc.) at that specific point is plotted as the moving load travels across the structure.
What is infinfluence line in bridge design?
Influence line, is simply a graphical representation of variation in a reaction component (shear, moment, etc…) as the vehicle (load) moves along the bridge span. Significance of Influence lines – Above given explanation can help you understand its significance.
What are the benefits of using an influence line?
The biggest benefit is that once you construct an influence line for a reaction, shear or moment at a critical location in a structure, you can easily check how multiple different load patterns on the structure will affect that load effect (the reaction, shear or moment).
Why is the influence line important in Chemical Engineering?
In addition to telling us what the effect of a certain load will be on a parameter such as the reaction at a certain point, the influence line also gives us a visual indication of where a load should be placed to create the maximum positive or negative effect.
What is a bending moment influence line?
A bending moment influence line for any given point X on a structure is a line whose ordinate at any point B gives the bending moment at X when a load is placed at B ( keep reading it and look at the example below – it will make sense eventually !). Influence lines can be obtained for bending moments, shear forces and reactions.