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CONSTRUCTION KNOWLEDGE BLOG

March 17, 2011

Some Useful Tech Advice
Filed under: Phone Apps for Construction — Tags: — nedpelger

My son Lex wrote a helpful post listing two important ways to protect your tech data.

  1. Have all your important files backed up automatically to the cloud with minimal effort and low cost.
  2. Add a phone finder app to your smart phone that helps you foil thieves and your own stupidity.

You can get to the post either by following this link or clicking on the Phone Apps Blog icon at the top of the ConstructionKnowledge.net site. Lex lives in Belgium these days, but his writing hasn’t seemed to pick-up an accent yet.

CONSTRUCTION KNOWLEDGE BLOG

March 15, 2011

Fission Primer and the Japanese Crisis
Filed under: Energy — Tags: — nedpelger

The Fukushima I Nuclear Power Plant experienced the earthquakes and flooding of the past few days. The nuclear reactors shut down automatically after the earthquake, but the subsequent flooding and loss of power via emergency generator flooding has caused loss of control of the reactors. The sketch below provides a bit of insight into the Fukushima reactors:

As I tried to understand the crisis, here are a few things I learned.

  1. Are the various explosions nuclear explosions? No, the exposed (due to lack of cooling water) metal fuel rods react with the steam to produce hydrogen. The reactors are designed for that hydrogen to burn off prior to explosive levels being reached, but the lack of electricity probably kept that system from functioning. Therefore, the hydrogen concentration increased then exploded (think Hindenburg).
  2. Did those explosions crack the containment vessels? It appears the containment vessels (prestressed concrete several feet thick with a steel core) has not been damaged by the hydrogen explosion. The upper building shell (mainly in place to keep weather off the reactor) was damaged.
  3. Why is Reactor #3 the most critical? There are 6 reactors, but only #3 uses plutonium as a fuel. The byproducts of the plutonium reactor are much more carcinogenic than from the other five.
  4. How much radiation has actually been released? The levels at the plant were around 751 microsieverts, a dosage similar to a stomach x-ray. A fatal dose of radiation would be more than 7 million microsieverts. The Japanese authorities are instructing nearby residents to stay indoors and are distributing potassium iodine pills to prevent radiation from building up in the thyroid (the most dangerous aspect of nuclear fallout). One resident commented, “My house was washed away by the tsunami, now the government tells me to stay indoors.”
  5. What is a meltdown? Actually, the term meltdown isn’t used in industry codes or documentation. The media uses that term, but it doesn’t have a precise industry definition. Generally, though, a meltdown would be the nuclear fuel rods creating some much heat as to melt through the steel and concrete core liner.
  6. Will the containment structures be breached (meltdown)? Each day seems to bring some good news and some bad news. As of today, it’s possible each of the 6 reactors will be adequately cooled with ocean water or their normal cooling water and prevent further damage. It’s also possible (though I think much less likely) that the cooling systems will fail and a meltdown will occur.

Update on March 19, 2011: It appears Reactors #1, 2 and 3 are currently stable (though with damaged cores), with sea water being pumped into them via fire hoses. The helicopters dropping water and water cannons spraying flumes were creative but unsuccessful efforts. Reactor #4 seems to be most at risk, with little data available about the current condition. The life threatening work performed by the plant workers inspires me. What great honor and courage!

I’ll update as seems appropriate.

CONSTRUCTION KNOWLEDGE BLOG

March 12, 2011

Courage vs Prudence
Filed under: People Skills — Tags: — nedpelger

Take 25 seconds to watch this gorgeous natural natural rock water slide in Brazil.

httpv://www.youtube.com/watch?v=ldZZPFssHKI

Certainly the slider shows some courage, slipping into the unknown experience. A gash and some stitches or a cracked head could have happened, though they didn’t. I love the visual of the kid sliding with the audio of the circumspect.

So where do you stand on the courage vs prudence issue?

Yesterday, a potential client drove with me to an old apartment building. The real estate agent didn’t have the key in the key box, so there appeared no way into the building. My client managed to jump up on an electrical meterbase, then reach for the tip of a descending steel fire escape that no longer descended, then pulled himself up and shoved a door open. Then he said to me, “You probably can’t get up this way, I’ll see if I can get another door open”.

Though he was a bit younger than me, the “You probably can’t do this” statement sufficiently motivated me to scurry right up that sucker as well. Perhaps not too prudent, but it got me thinking about that dance between courage and prudence.

I’ve long abhorred the concept of living in fear of any risky consequence. The “Sleepwalking through life to get to death safely” seems such a waste of our adventure here on Earth. Yet, as my father still reminds me, “You don’t need to play in traffic, either.”

I’ve found a helpful trick: try to never let fear dictate your actions. Don’t be afraid to be courageous. Don’t be afraid to be prudent. Actively choose your course, not from fear, but from experience, wisdom and the knowledge that none of us get out of here alive.

CONSTRUCTION KNOWLEDGE BLOG

March 10, 2011

Stadium Seating: Buttocks or Crotch?
Filed under: Finishes — Tags: — nedpelger

I’ve been involved in various stadium seating projects over the years. It’s been fun working out the details for how to efficiently get these projects built. Here’s a dilemma that I hadn’t tried to resolve.

And the good natured response by the president of the American Seating Company.

Like so many of the things that I post about, my 28 year old son Lex shot this to me. He checks lots of sites and blogs, this one came from Letters of Note. Of course, the author of the first letter was just a wise guy trying to see what kind of response he get. It made me laugh, though, and hopefully gave you a smile as well.

I read today that toddlers laugh 400 times per day (every 2 minutes) and that number drops to 15 for average adults. As a competitor, my new goal is to laugh much more than 15 times each day so as not to be average.  Above all, I don’t want to be average.

CONSTRUCTION KNOWLEDGE BLOG

March 9, 2011

Don’t Blame the Construction Workers
Filed under: Productivity — Tags: — nedpelger

An ENR blog Rethinking Wrenchtime: Tell Us What’s Slowing Jobsite Production, and Why questions trade productivity. The writer noted that 40 years ago they blamed unions for featherbedding and producing low productivity. With the continual decrease in union presence, they wonder who to blame.

The American Society of Civil Engineers (by definition, engineers not deficient in common courtesy), produced a study in 2009 with the following conclusion:

Factors involving tools and consumables, materials, engineering drawing management and construction equipment were identified as having the greatest impact on productivity from the craft workers’ perspective.

I learned that truth early in my days on the jobsite and have continued to believe. A great construction supervisor can help deliver impressive trade productivity.

One of the comments on the ENR blog stated the case well.

In my view as a former journeyman, project manager and project executive, the keys to productivity are:

1. maintaining the flow of materials to the craftsmen performing the work.

2. maintaining the right ratio of Journeymen to Apprentices in order to ensure that the most difficult tasks are being performed by the most experienced craftsmen.

3. Avoid the need to stack the trades and other unnecessary inefficiencies by developing, maintaining and adjusting as needed, the best work plan possible (which includes a materials handling and delivery strategy).

4. Always involve the superintendent and general foremen in the development of the work plan and schedule.

5. Always remember two things, a safe environment is an efficient environment and you can’t buy back a bad estimate or schedule out of the labor budget. T.C.

CONSTRUCTION KNOWLEDGE BLOG

March 8, 2011

LED Light Bulbs: The Next Big Thing
Filed under: Electrical — Tags: — nedpelger

Light Emitting Diode (LED) lights provide low cost lighting with a long bulb life. The LED light uses electroluminescence through the semiconductor to create this light.

Introduced as an electronic component in 1962, the LED lights are just becoming commercially viable for building lighting. I’ve been following the development of these lights for a few years. Until now, they have simply been too expensive to be used except for remote locations that benefited from a super long lamp life.

The LED Waves website shows the large variety of LED bulbs and fixtures available…from the replacement for a 4′ long fluorescent tube to rope lighting. Screw in LED bulbs, dimmable and normal, also are available.

As you are working with Owners, ask them if they want to consider the benefits of LED light bulbs. For many facilities the payback will be viable and it’s a green building option whose time has come. Learn to calculate the payback for evaluating a LED light vs incandescent or fluorescent, it makes you look smart.

Try some LED bulbs in your home or office and see what you think. If you want to be a leader in this industry, keep up with the promising trends.

CONSTRUCTION KNOWLEDGE BLOG

March 5, 2011

Life’s Too Short for the Wrong Job
Filed under: Ned Weirdness — nedpelger

Hopefully you love your work in construction. We get to conceive, design and build things. Not many people in the world have that privilege. On the other hand, you may not like what you do. The following photos, from a German ad campaign for an online job search site, illustrate the concept of being boxed into a job you hate.

The caption, by the way, translates as, Life’s Too Short for the Wrong Job.

CONSTRUCTION KNOWLEDGE BLOG

March 3, 2011

BART Leads
Filed under: Cool Projects — Tags: — nedpelger

I remember riding the subway in San Francisco in the mid 1970s. BART (Bay Area Rapid Transit) had just built lots of track and stations. Their system was so automated, they claimed to not even need drivers. Since I was traveling from city to city as a rock and roll roadie, I had opportunity to ride most of the subways in the country. BART was the best.

So when my buddy Jim Gravesand, an engineer I worked with in the early days of civilization, went to work for BART in the 1990s, it was fun to keep track of what BART was doing. Jim just sent me this video of their latest station, built without Federal money. The public/private partnership executed a difficult project, building over an operating subway line and between a divided highway.

httpv://www.youtube.com/watch?v=35BiPbmmERw&feature=email

The video shows some great construction footage as well as a cameo appearance by my old buddy Gravey. He comments on the importance of getting this project done without federal funding. As the USA moves into the new reality, projects like this should be studied and understood.

As I often opine, think deeply about the future and how it’s likely to look. You will be much better positioned to prosper if you have a sense of where to stand.

CONSTRUCTION KNOWLEDGE BLOG

February 24, 2011

How to Cat Call in Construction
Filed under: Ned Weirdness — Tags: — nedpelger

The video below cracks me up. Some guys just don’t get it.

httpv://www.youtube.com/watch?v=1DViogbPTH4

I thought maybe I should lighten the mood after yesterday’s Andersonville Prison post.

By the way, we loved touring through middle Georgia. Friendly folks with drawls that barely fall under the sub-heading of English. The photo of this loaded pickup truck sums it up.

And finally, just because I think it’s beautiful, here’s a photo I took in Savannah. The wrought iron work and the shadows played into a happy coincidence.

CONSTRUCTION KNOWLEDGE BLOG

February 23, 2011

Andersoneville: The Good, The Bad and The Incompetent
Filed under: People Skills — nedpelger

We visited the Andersonville Confederate prison camp in GA yesterday. The Federal Government created the museum and national cemetery to honor Prisoners of War (POWs) throughout our history. The graphic design on the plaque was wonderful and the building design evoked the feeling of entering a prison.

Since I’m fascinated with how people respond in difficult circumstances, I knew I’d learn something from this brutal place. In case you don’t know the background, the Confederate Army, during the US Civil War in the early 1864, built a POW camp to hold 10,000 men. Within months they had 24,000 within the vertical log wall enclosure and a couple hundred men dying each day.

Since the Confederates had almost no chance of winning the war at that time, the conditions were horrible. The food rations were extremely limited, and the vendors that provided the cornmeal often ground the corncobs as well to increase profits. With most of the men suffering from dysentery, the ground corncobs played further havoc on their GI tracts.

The guards were posted on watchtowers outside the walls and all the prisoners were a mass inside. No shelter was provided. So any prisoner that brought a blanket or a part of a tent could fashion some covering from the weather. The prisoners named these shelters “Shebangs”. The expression “The whole shebang” came from Andersonville.

If you look carefully at the photo above, you’ll see a simple board fence 19′ inside the vertical log prison walls. Captain Wirz,the camp commandant, gave orders that any prisoner crossing this line would be shot. Many were shot and the prisoners nicknamed the fence “The Deadline”. The term deadline, meaning an important event that must be recognized, came into the English language from Andersonville.

The leadership of Captain Wirz captured my attention. Some historians describe him as a good man caught in an untenable situation. He wrote letters to his superiors, to surrounding towns and to businesses describing the horrible conditions and requesting help. One prisoner wrote in his diary that Wirz was “A beast of a man.” He responded to one prisoner plea about the horrible conditions by indicating that he had no ability to change it, he said, “God help you, I cannot”. After the war, in the heat of the Northern rage about Andersonville, Wirz was tried as a war criminal and hung. He was the only person held responsible for the conditions.

So, was he good? Was he evil? I think situations often take us past those questions to another, was he competent? Since his duty was to keep the prisoners from escaping and almost no one escaped, he was competent in that regard. Yet his competency for feeding and health care was lacking. He did write letters, but I believe more could have been done. Creative thinking grows from competency.

When evaluating others and ourselves, we need to consider both our morality (good or evil) and our competency (ability to get the important things done). I have known and worked with lots of decent, incompetent people. It’s an important skill to determine where the folks you deal with fall on the decency and the competency scales. Then you can make effective decisions about what to expect from them.

Take some time to think about where you hang on those scales as well. I know I strive to be as decent and as competent a person as I’m capable of being. To move in those directions takes intent, introspection and action.

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