Notes From Class
Notes From Class
Week 1: January 24, 26, and 28, 2022.
In-person Instruction: January 24, 26 and 28.
Case Study:
Jakarta is home to 10.9 million people and the capital city of Indonesia.
It is also the fastest sinking city in the world (sinking 10 inches per year in places).
Google: Jakarta sinking
Week 2: January 31. February 2 and 4, 2022.
In-person Instruction: Jan. 31 and Feb. 2.
Week 3: February 7, 9, and 11, 2022.
In-person Instruction: Feb. 7 and 9.
Week 4: February 14, 16, and 18, 2022.
In-person Instruction: Feb. 14 and 16.
Handout: Types of Trusses
Example: Method of Joints .
Example: Method of Sections .
Handout: Analysis of Statically Determinate Structures
Handout: Truss Analysis Tutorial
Week 5: February 21, 23 and 25, 2022.
In-person Instruction: Feb. 21 and 23.
Midterm I from Fall Semester, 2018.
Midterm I from Fall Semester, 2019.
Midterm I from Spring Semester, 2020.
Midterm 1 exams that were on-line (12 hr format):
Midterm I from Fall Semester, 2020.
Midterm I from Spring Semester, 2021.
Midterm I from Fall Semester, 2021.
Week 6: February 28. March 2 and 4, 2022.
In-person Instruction: February 28.
NOTE: You have 12 hrs to complete and return the exam. Please make sure your name and e-mail are clearly written on the first page.
Open book and open notes. University rules on academic integrity apply.
Three questions covering computation of indeterminacy, support reactions,
shear and bending moment diagrams, tensile and compressive element-level forces.
Instructions for Submitting Midterm I: See details on ENCE353 home page.
NOTE ON EXAM DATE:
I am proposing March 2 for Midterm I, but I realize there
might be conflicts with religious commitments.
So please let me know and we adjust accordingly.
Week 7: March 7, 9 and 11, 2022.
In-person Instruction: March 7 and 9.
Week 8: March 14, 16, and 18, 2022.
In-person Instruction: March 14 and 16.
Change of topic: for the next two weeks we will cover analysis of arch structures followed by analysis of cable structures.
See, in particular, the notes and video on parabolic arches -- definitely the coolest part of this course --
and links (below) to recently developed projects.
Rough timeline:
There is a nice write-up of the history and development of the arch on Wikipedia.
The principal architect, Eero Saarinen, also designed the terminal building at Washington Dulles Airport.
Timeline:
Looking beyond the Washington DC region, arch bridges are definitely in vogue, e.g.,
Week 9: March 21, 23 and 25, 2022.
Week 10: March 28 and 30. April 1, 2022.
In-person Instruction: March 28 and 30.
As noted above, architect Eero Saarinen worked on the design of Dulles Airport during the 1950s, some 20-odd
years after completing the St. Louis Arch. You can see the influences of his previous work
in the shape of the cantilever supports.
What's really amazing is that this structure was designed without the aid of modern computational analysis
tools (i.e., no Matlab), relying instead on "first principles of engineering" (equilibrium)
and the construction of small-scale models.
See, in particular, slides 12-15 and 22-24 of this
handout .
Slide 24 shows that foundation level of the structure essentially acts as a huge deep beam,
with tensile forces at the lower-most sections of the ground slab carried by reinforcing/prestressed cables.
Week 11: April 4, 6 and 8, 2022.
In-person Instruction: April 4 and 6.
Week 12: April 11, 13 and 15, 2022.
In-person Instruction: April 11 and 13.
Solutions to Midterm II from Fall Semester, 2017.
Week 13: April 18, 20 and 22, 2022.
In-person Instruction: April 22.
NOTE: You have 12 hrs to complete and return the exam. Please make sure your name and e-mail are clearly written on the first page.
Open book and open notes. University rules on academic integrity apply.
Three questions covering: (1) computation of displacements via integration of
beam differential equations and/or moment area, and (2) arches and cables.
Virtual work will not be covered.
Instructions for Submitting Midterm II: See details on ENCE353 home page.
NOTE ON EXAM DATE:
I am proposing April 18 for Midterm II, but I realize there
might be conflicts with religious commitments. So please let me know.
If April 18 will not work, am happy to move to April 20.
Week 14: April 25, 27 and 29, 2022.
In-person Instruction: April 25 and 27.
Week 15: May 2, 4 and 6, 2022.
In-person Instruction: ...
Week 15: May 09, 2022.
In-person Instruction: May 9, 2022.
Final Exams: 2017 (pdf), 2018 (pdf) (zoom video) and 2019 (pdf) (zoom video).
FINAL EXAM
NOTE: You have 12 hrs to complete and return the exam.
Please make sure your name is clearly written on the first page.
Cross out the two questions that you do not want marked.
Open book and open notes. University rules on academic integrity apply.
Six questions: Question 1 is compulsory. Do three of the remaining five questions.
Topics include: Moment area, virtual forces, virtual displacements, force method
and flexibility matrices.
Submitting the Final Exam: See details on ENCE353 home page.
Last Modified: April 22, 2022,
Copyright © 2022, Department of Civil and Environmental Engineering, University of Maryland.
