Concrete column and ultimate compressive stength

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Discussion Overview

The discussion revolves around a homework problem involving a concrete column reinforced with steel bars, focusing on calculating the stress taken by the steel, the change in length of the column, and the factor of safety based on the ultimate compressive strength of concrete. The scope includes mathematical reasoning and conceptual clarification related to material properties and structural analysis.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Conceptual clarification

Main Points Raised

  • One participant presents a homework statement detailing the parameters of a concrete column and asks for help with specific calculations.
  • Another participant welcomes the original poster and requests information on what they have attempted so far to provide better assistance.
  • A subsequent reply expresses uncertainty about how to begin the problem and asks for guidance on starting the calculations.
  • Another participant suggests that the original poster should post the relevant equations and questions whether Young's Modulus relates to stress and strain.

Areas of Agreement / Disagreement

The discussion does not present any consensus, as participants are still in the initial stages of seeking help and clarifying the problem without providing solutions or definitive answers.

Contextual Notes

Participants have not yet provided any calculations or explored the implications of the given parameters, leaving the discussion open-ended regarding the application of material properties and structural analysis.

Who May Find This Useful

Students or individuals interested in structural engineering, material science, or those seeking assistance with similar homework problems related to concrete and steel structures.

emma louise
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Homework Statement


a concrete column, 4.5m long, is reinforced with steel bars and carries a compressive load of 58 tonnes. The overall cross-sectional area of the column is 0.1m squared and the steel reinforcement accounts for 5 percent of this area. take young's modulus for steel as 200 GN/m squared, young's modulus for concrete as 20 GN/m squared and ultimate compressive strength
for concrete 50 MPa. calculate,

the stress taken by the steel?

change in length of the column?

the factor of safety based upon the UCS for concrete?
 
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welcome to pf!

hi emma louise! welcome to pf! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
hiii:) i haven't tried anything yet, I am just wondering how to start it?
 
emma louise said:
hiii:) i haven't tried anything yet, I am just wondering how to start it?

You start by posting the Relevant Equations. Does Young's Modulus have anything to do with stress and strain?
 

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