Practical application of engineering mechanics dynamics in civil engineering

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Discussion Overview

The discussion revolves around the practical applications of engineering mechanics dynamics in civil engineering, particularly in the context of static analysis. Participants explore whether civil engineers encounter dynamic situations in their work.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the relevance of dynamics in civil engineering, specifically in static analysis.
  • Another participant humorously contrasts the roles of mechanical engineers and civil engineers, implying a division in focus between dynamics and static structures.
  • A participant challenges the notion that civil engineers do not deal with dynamic loads, citing examples such as bridge sway, building responses to wind, and ground vibrations from earthquakes.
  • Further examples are provided, including the effects of seismic activity on building codes and the phenomenon of seiche in lakes, suggesting that dynamic considerations are indeed relevant in civil engineering.
  • A later reply reiterates the initial question about the involvement of civil engineers with dynamic situations, seeking clarification on specific contexts.

Areas of Agreement / Disagreement

Participants express disagreement regarding the extent to which civil engineers engage with dynamic situations, with some asserting that dynamic loads are significant while others question the emphasis on dynamics in static analysis.

Contextual Notes

Some assumptions about the definitions of static and dynamic analysis may not be fully explored, and the discussion does not resolve the implications of these terms in civil engineering practice.

amare
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what is the practical application of engineering mechanics dynamics in civil engineering when civil engineers work on static analysis?
 
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amare said:
what is the practical application of engineering mechanics dynamics in civil engineering when civil engineers work on static analysis?
So civil engineers never deal with dynamic situations?
 
What I remember from engineering school: MEs build missiles, CEs build targets.
:wink:
 
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Bridges and buildings are not subject to dynamic loads?
Millennium bridge sway: https://www.sciencedaily.com/releases/2005/11/051103080801.htm
Galloping Gertie: https://en.wikipedia.org/wiki/Tacoma_Narrows_Bridge_(1940)
Tall, narrow buildings sway in the wind: https://practical.engineering/blog/2016/2/14/tuned-mass-dampers-in-skyscrapers

Even the ground vibrates:
Man-caused: https://en.wikipedia.org/wiki/Ground_vibrations
Earthquakes: https://pubs.usgs.gov/gip/earthq1/measure.html
The effect of earthquakes on California building codes: https://ssc.ca.gov/forms_pubs/cssc95-01e-ch3.pdf

Lakes slosh: https://en.wikipedia.org/wiki/Seiche (read the part about engineering for seiche protection)
 
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Chestermiller said:
So civil engineers never deal with dynamic situations?
I was asking sir ! do they have a deal with it ? where?
 

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