The principle states that the influence lines of an action ( force or moment ) assumes the scaled form of the deflection that the structure displays after removing the restraint on the point where the action is evaluated and applying a point load at that point which causes a unit displacement.
22.
External forces that are specified as line loads ( such as traction ) or point loads ( such as the weight of a person standing on a roof ) introduce singularities in the stress field, and may be introduced by assuming that they are spread over small volume or surface area.
23.
In order to calculate the response of a function to all of these point loads using an influence line, the results found with the influence line can be scaled for each load, and then the scaled magnitudes can be summed to find the total response that the structure must withstand.
24.
This is what is don't in example 1 in this link, a simply supported beam with a single point load . http : / / www . freestudy . co . uk / engineering % 20science % 20h1 / outcome % 201 % 20t3 . pdf can the same method be used if there were 3 point loads of varying magnitudes at random places along the beam ? Preceding talk ) 20 : 47, 10 March 2014 ( UTC)
25.
This is what is don't in example 1 in this link, a simply supported beam with a single point load . http : / / www . freestudy . co . uk / engineering % 20science % 20h1 / outcome % 201 % 20t3 . pdf can the same method be used if there were 3 point loads of varying magnitudes at random places along the beam ? Preceding talk ) 20 : 47, 10 March 2014 ( UTC)
