mrm2502 civil and offshore engineering. dr sands & mrs chandler christine fraser noble f015 (top...

17
MRM2502 Civil and Offshore Engineering

Upload: megan-wagner

Post on 28-Mar-2015

212 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

MRM2502

Civil and Offshore Engineering

Page 2: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Dr Sands&

Mrs Chandler

Christine

Fraser Noble F015(Top Floor of West Wing)

[email protected]

Page 3: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Course Structure

• Aims– To provide an understanding of the scale and range

of civil and offshore engineering works, including the techniques used in marine, coastal, estuarine and onshore situations.

• Objectives– This course is intended to enable you to

communicate effectively with other professionals and members of the public about aspects of construction in marine and coastal environments.

Page 4: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Asessments

• Presentation projects (40% total) – Each student (working in groups) will contribute to 2 projects that will be presented by the group to the full class. Each presentation (10%) will be supported by a written summary from each individual student (500 words plus 4 illustrations maximum – 10%). The presentations will be peer ranked.

• 2 class tests of 30% each. During each test students will write 2 brief reports (from a selection of topics), 1 on a tutor presented topic and 1 on a student presented topic not their own. March 11 & April 22

Page 5: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Emphasis on Group Work

• Group 1– James Alexander– Rosanna Bassnett-Barker– Ian Browne – Symen Gerlings

• Group 2– Lyndsey Boyd– Scott Campbell– Andrew Corse

• Group 3– Daniel Edwards– Marta Gomez Salcedo– Michael Kelly

• Group 4– Emily Hastings– Nicholas Ledger– Callum McNee

• Group 5– Adam Porteous– Kyle Riach– Thomas Stewart-Moore– Natasha Walecki

Page 6: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Talking the TalkBrief Outline of Some Engineering Terms

• Weight & Mass– Kilograms

• Force – – one of Newton’s laws:

– Newtons

maF

Page 7: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Equilibrium

• Consider a book sitting on a tableF

R

If Upwards is positive, then:

R-F=0

R=F

Another of Newton’s Laws: To every action there is an equal and opposite reaction.

Page 8: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Consider Book Falling

• Assume parachute very light

F

P Total upward force = P-F

P-F=-ma

F – P = ma

But F=mg

So:

mg-P=ma

Page 9: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Another of Newton’s Laws

• A body will remain at rest or continue to move with a constant velocity unless acted upon by an external force.

Page 10: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Stress – Simplistic Approach

a

f

Tension

Shear

Page 11: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Strain – One Simplistic Definition

0

0

l

lle

Page 12: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

The Important Bit

• Stress relates to the force or load applied to a body.

• Strain relates to deformation.

Page 13: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Young’s Modulus or Elastic Modulus

σ

e

eE

Page 14: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Structural Failure

• Strength

• Stiffness

• Stability

• Robustness

• Durability

• Other Serviceability

Page 16: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

The Important Bit

• Enabling legislation– The details can change – sometimes a lot.

• The client (i.e. the person for whom the structure is being built) has duties under the law (except for domestic or very small scale work).

• Always check on the current situation.• The HSE is not always your friend.• You need planning permission unless you are

the Queen. Your L.A. will usually give you advice.

Page 17: MRM2502 Civil and Offshore Engineering. Dr Sands & Mrs Chandler Christine Fraser Noble F015 (Top Floor of West Wing) c.chandler@eng.abdn.ac.uk c.chandler@eng.abdn.ac.uk

Any Questions so far?