This is a take home quiz that I gave my students
Problem 1 GEF calculation (50%)
If a student number were of this format: YEAR-BCDFG, for Problem #1 they should take note of the following instructions.
- If B is odd, they will assume a concrete MWFRS. Otherwise, assume a steel MWFRS.
- CD represents the height of the building in meters. For example, if my student number is 2013-05852, 58 meters is my building height.
- FG represents the gust wind speed experienced at the site, in m/s. For the same example student number above, 52 m/s is the gust wind speed. However, a gust wind speed lower than 5 m/s shall not be used.
- The building is square in plan, and its side width is the same as its height, except that the side width shall not be taken to be more than 30 meters.
Problem #1 itself goes as follows.
Create a spreadsheet of your own using Microsoft Excel, Google Docs Spreadsheets, or Apple iWork Numbers that calculates the gust effect factor for buildings according to the NSCP 2010. You may also use any programming language except VBA. (VB is okay but not VBA!) You can also calculate manually, and just make sure to send your calculations as a PDF.
Assuming sub-urban terrain, calculate the gust effect factor for the building you were assigned. Note that you need to have good estimates of natural frequency and damping ratio to arrive at a gust effect factor. Compare your estimated gust effect factor with the gust effect factor for rigid buildings and discuss the difference (if any). Submit your spreadsheet/calculations highlighting your results, and including the required discourse/discussion.For their aid, they can also just use this table:
|Student No.||Primary MWFRS||h (m)||V (m/s)||B, L (m)|
Problem 2 Other fields of wind engineering (35%)
Based on a very recent 27-minute presentation on different aspects of wind engineering, list down the 9 aspects of wind engineering presented (3 applications, 3 fields of study, and 3 tools), and discuss which one for you is the most interesting aspect of wind engineering other than structural wind engineering. Make sure to state why you chose that aspect of wind engineering.
Problem 3 New things you have learned (15%)
Based on what you've been reading from this blog so far (for practicing structural engineers / readers) or based on what you've gathered so far from this introductory course on structural wind engineering (CE 197 for UP ICE students this semester), list down the top 10 most important new things you've learned. Discuss why they are the top 10 most important to you.
For my students, submit all responses to firstname.lastname@example.org by 1:00 pm of agreed submission date. For practicing structural engineers and readers of this blog, you can post your responses/answers in the comments. :-)