This semester I am lecturing at the Institute of Civil Engineering, University of the Philippines, Diliman, Quezon City. The course number is CE 256, and the course title is "Structural Design for Dynamic Effects." The course is divided into three parts, namely: Structural Dynamics Review (2 sessions), Wind Effects (7 sessions), and Earthquake Effects (5 sessions). The very last session is going to talk about structural design considering both wind and earthquake effects (i.e. the case in the Philippines). I am lecturing the second part on Wind Effects.
The main outline of the Wind Effects part is as follows:
civil, structural, typhoon, wind, earthquake, and structural dynamics engineering
20091009
Engineering Misconceptions, Part 4 - To what extent can I not design to code? Will it still be safe against earthquakes and typhoons?
The above subject is a three-part question.
A. To what extent can your building be not designed to code?
1. To no extent! You can't not-design to code. The code is the minimum requirement by law! You can choose to not design to code only if it has been superseded.
A. To what extent can your building be not designed to code?
1. To no extent! You can't not-design to code. The code is the minimum requirement by law! You can choose to not design to code only if it has been superseded.
20090427
Engineering Misconceptions, Part 3 - Earthquake Magnitude and Intensity
Wrong: I designed your building to withstand an earthquake with a magnitude of 7.0 and intensity 10.
Right: I designed your building according to the minimum safety requirements of the building code which aims to protect life and limb from harm due to a 475-year return period earthquake. I also designed the foundations as appropriate. The intensity depends on the expected level of damage. If all buildings were designed properly, the intensity scale (expected level of damage) would go down for the area around your building.
Facts:
20090420
Engineering Misconceptions, Part 2 - Design Wind Speeds
Wrong: A wind speed of 60 m/s has been recorded recently in this area. Therefore the 55 m/s design wind speed (50-year return period) shown in the Building Code is now wrong.
Right: A wind speed of 60 m/s has been recorded recently in this area. The basic wind speed for this area as shown in the Building Code is only 55 m/s. I should convert 55 m/s to the actual design wind speed for this area based on the height, topography, and surface roughness to see if the recorded 60 m/s is over and above the actual design wind speed for this specific area. I should also read books to find out what exactly are return periods to better understand them.
Facts:
Right: A wind speed of 60 m/s has been recorded recently in this area. The basic wind speed for this area as shown in the Building Code is only 55 m/s. I should convert 55 m/s to the actual design wind speed for this area based on the height, topography, and surface roughness to see if the recorded 60 m/s is over and above the actual design wind speed for this specific area. I should also read books to find out what exactly are return periods to better understand them.
Facts:
20090413
Engineering Misconceptions, Part 1 - Return Periods
Wrong: The 50-year return period wind speed of 55 m/s occurs once every 50 years.
Wrong: A wind speed of 60 m/s has been recorded recently in this area. Therefore the 55 m/s 50-year return period wind speed is now wrong.*
Right: The 50-year return period wind speed of 55 m/s has a 63% chance or probability of occuring or being exceeded at least once in the next 50 years.
Facts:
Wrong: A wind speed of 60 m/s has been recorded recently in this area. Therefore the 55 m/s 50-year return period wind speed is now wrong.*
Right: The 50-year return period wind speed of 55 m/s has a 63% chance or probability of occuring or being exceeded at least once in the next 50 years.
Facts:
20090323
ALERT▲M7.2 quake to hit M.Manila?
------ Forwarded Message from a friend
I hope this one's not true. Let's just pray that this will not happen. May God continue to protect us.
--- On Tue, 3/17/09, aceschool.blogspot.com wrote:
From: aceschool.blogspot.com@gmail.com
Subject: ALERT▲M7.2 quake to hit M.Manila - Phivolcs
To: aceschool.blogspot.com@gmail.com
Date: Tuesday, 17 March, 2009, 11:40 AM
Do you know that according to the Phivolcs, a Magnitude 7.2 Strong Earthquake will hit Metro Manila anytime?
Are you prepared?
I hope this one's not true. Let's just pray that this will not happen. May God continue to protect us.
--- On Tue, 3/17/09, aceschool.blogspot.com wrote:
From: aceschool.blogspot.com@gmail.com
Subject: ALERT▲M7.2 quake to hit M.Manila - Phivolcs
To: aceschool.blogspot.com@gmail.com
Date: Tuesday, 17 March, 2009, 11:40 AM
Do you know that according to the Phivolcs, a Magnitude 7.2 Strong Earthquake will hit Metro Manila anytime?
Are you prepared?
20090206
Basic Structural Dynamics for Structural Engineers
I just delivered a basic structural dynamics lecture for structural engineers. The audience had varying structural engineering experience from a few months to a couple of decades.
20081027
20071119
APEC-WW in Shanghai, China
Today is Day 1 of the 4th Workshop on Regional Harmonization of Wind Loading and Wind Environmental Specifications in Asia-Pacific Economies (APEC-WW). I presented our country paper/report entitled "Wind Loading in the Philippines: Recent Developments in 2006-2007."
20070817
PICE Regional Conferences - Region I/CAR West (Ilocos), Region IV (Southern Tagalog), Region V (Bicol)
I made presentations on 'Typhoon Engineering' at regional conferences of the PICE around Luzon.
20070629
4th CECAR in Taipei, Taiwan
The 4th CECAR (Civil Engineering Conference in the Asian Region) was held in Taipei, Taiwan from June 25-28, 2007. Yours truly was co-author and presentor of two papers on wind speeds (wind hazards) and typhoon engineering:
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