Structural Eng: Find Deflection in Simply Supported Beam

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Discussion Overview

The discussion focuses on methods for calculating deflection in a simply supported beam subjected to multiple point loads. Participants explore both manual and software-assisted approaches, emphasizing the challenges of quick calculations in practical scenarios.

Discussion Character

  • Technical explanation, Debate/contested, Mathematical reasoning

Main Points Raised

  • One participant suggests using superposition as a method to find deflection for beams with multiple loads.
  • Another participant mentions the possibility of using software, specifically Winbeam, for calculating maximum moment and deflection, although they note that they typically do not use it for deflection calculations.
  • A later reply reiterates the superposition method, emphasizing its application for beams with constant cross-section and the addition of responses from individual loads.
  • Concerns are raised about the practicality of manual calculations when many point loads are present.

Areas of Agreement / Disagreement

Participants express differing views on the best approach to calculate deflection, with some advocating for superposition and others suggesting software solutions. No consensus is reached regarding the most effective method.

Contextual Notes

Participants do not specify the conditions under which superposition is applicable, nor do they clarify the limitations of the software mentioned. There is also no discussion of the assumptions required for accurate deflection calculations.

civilengineer
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How can i find deflection in simply supported beam with multiple point loads ?
 
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Superposition
 
you can simply find the deflection for beam loaded with UDL, or you can put your load in the computerised model.
 
thanks for reply,
but what u will do when u have so many point load acting on beam
and u have to find solution manualy and quickly.
 
I would use the simple software Winbeam. This is an excellent tool for calculating max. moment etc. on beams with any kind of loadings. - Well, this can give the deflection, if the stiffness factor is correct inserted. Normally I don't use this program to calculate deflection - but it is possible as far as I know. I have a quite old version of the program - maybe a new version have even better features for calculating deflection.
 
Last edited:
FredGarvin said:
Superposition

Software? Computerized model? If the beam is 1d with constant cross section, then just use superposition.

You take the response of the beam based on each load separately, then just add them together.
 

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