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CONSTRUCTION KNOWLEDGE BLOG

August 29, 2009

Would Phone Apps be Helpful to You?
Filed under: Productivity — Tags: — nedpelger

My friend Erik Schouten suggested I should be making iPhone and Blackberry phone apps for the various helpful items on ConstructionKnowledge.net. I imagine it would be useful to have the most common ADA requirements or some concrete form tolerance requirements right at your phone, to access immediately when a question arises on the jobsite. Often there just doesn’t seem like there’s time to get to a computer and search for the answer.

Erik uses his phone with all sorts of crazy apps. He’s a drywall contractor and I recently asked him to investigate some complaints about excess noise from an elevator equipment room to adjacent apartments in several buildings we just completed. Erik had an application on his iPhone that measured sound pressure in decibels and also a frequency analyzer.

So he was able to tell me that in several of the units the bathroom exhaust fan made more noise than the elevator, but one unit had substantially more elevator noise than the others. He was also able to pinpoint that the noise was almost all mid-range (500 Hertz to 1000 Hertz). Knowing that it wasn’t real low frequency sound transfer, helped us devise a simple solution to the problem for that apartment.

Previously, I was thinking expensive lead drywall may be the best answer. Because of the tools from Erik’s iPhone and some basic knowledge of sound transfer, we can save the owner substantial costs and ourselves some serious headaches.

I don’t think most guys on the jobsite will want or need a sound frequency analyzer, but I am wondering if they wouldn’t use clear building code and technical info that is easy to find in their smart phones. What do you think about this concept? I’d really appreciate some comments here, as it will be a major step to develop these apps.

As a final note, I understand lots of PMs, Supers and Foremen don’t currently have the more expensive smart phones, but I’m fairly sure within a couple of years we will all have them. The benefits, even just having instant access to email and the internet, will be too high vs the lowering cost.

Please take a few moments and leave me a comment about your thougths on this issue. I appreciate it.

CONSTRUCTION KNOWLEDGE BLOG

August 26, 2009

A Few Stories to Make You Feel Better About Your Life
Filed under: Ned Weirdness — nedpelger

My son just showed me a website called F#&k My Life that let’s people share their tales of woe. I could relate to lots of the examples. Some are shown below.

Today, I caught my dad squishing my stick-on bra cups in his hands, trying to figure out what they are. He’s an engineer who graduated from MIT. I still don’t think he knows what they are. FML

Today, I was driving my car and I thought the construction guy was flirting and waving at me. So I drove by him, waving back and hit an oil spill and my car ended up spinning out of control. He was trying to direct me away from the oil spill. FML

Today, I woke up to the sounds of birds singing, the smell of butter pancakes in the air and thought to myself “Wow, today is going to be great day. I can feel it!” Excited, I jumped out of my bed and threw open the door to see my 58 year old mother doing her morning stretches in the nude. FML

Today, I found out why my 5 year old son’s teacher acts so awkward around me. My son told everyone in his class that I work as a stripper. I’m not a stripper, I work at the strip mall. FML

Today, I had my friend Mark over for dinner. My Dad asked him what his dad did for a living. We all squirmed a bit when he told us that his dad died last year. We all went about finishing our meal when suddenly my dad says: “I’m sorry, Mark, what did you say your dad did for a living again?” FML

So maybe your life looks just a little bit better, by comparison.

CONSTRUCTION KNOWLEDGE BLOG

August 25, 2009

Cool Bridges that don't Meet HS-20
Filed under: Design — Tags: — nedpelger

I never did much bridge design, but I remember something about HS-20 being the design standard. Some agency decided that trucks get modeled like the graphic below and that bridges shouldn’t fall down when the trucks drive over them.

truck_wt.svg

I guess the tribesmen in Cherrapunji, India didn’t get the memo. They live in the rainiest place on earth and have lots of rivers to cross. They also have rubber trees that will grow roots horizontally when trained. So when they want a bridge, they just grow it.

root_bridge1

root_bridge2

root_bridge3

I’ve never seen anything like this. I enjoyed the concept and thought you might too. You can learn more and see additional photos here.

CONSTRUCTION KNOWLEDGE BLOG

August 24, 2009

Bob Gerding Lived with his Brain and his Heart
Filed under: Cool Projects — nedpelger

I rode bicycle yesterday in Lance Armstrong’s LiveStrong Philadelphia Cancer Ride. As I tortured myself through 70 miles of heat on legs that haven’t ridden much this summer, I talked to several folks who dealt with cancer up close and personal. The resiliency of people encourages me to try a bit harder in my day to day living.

Today I read about Bab Gerding dying at 71 after a long struggle with cancer. You may have heard of Bob, he transformed the Portland OR downtown area with many eco-friendly high rise buildings. His firm worked private-public partnerships for the benefit of many. Since 1994, they designed and built mixed use buildings that conserved energy and water.

Before most folks talked about sustainable or green design, they developed projects that just made sense. In fact his firm, Gerding Edlen Development Co.,  produced more LEED certified buildings than anyone else in the world at one point.

Bob’s Dad was a residential contractor in Oregon, but Bob went to university and studied biochemistry. He eventually got his PhD and held a clinical post at Good Samaritan Hospital, in Portland. He discovered he liked building labs better than running them, though, so started into his new career.

He defied the stereotypes of developers. While making a fair profit, he consistently tried to bring the best for all the stakeholders. He and his wife also loved the arts and supported them with generosity and time.

As I read about the life of Bob Gerding and the lives he touched, I’m challenged to live with conviction and purpose. You only live once, but if you make the right choices, once is enough.

CONSTRUCTION KNOWLEDGE BLOG

August 22, 2009

Misc Items of Interest
Filed under: Ned Weirdness — nedpelger

The article at this link tells 5 short success stories from varied industries. Opening with a story about a guy who goes from assistant construction superintendent to vice-president of a $1 billion construction company (with no formal construction education), the article illustrates the possibility of career growth. He also give some good people skills advice.

The other four stories, taken from widely scattered fields, will also motivate anyone considering change. In these times, we all should be considering change. As I stressed in the last posts, take some time to think deeply about where your current job and industry are going and where you want to go.

Another recent story that amused me concerned a Construction Superintendent in Virginia who had his Bank of America credit card rate almost doubled, for no real reason other than they could. He made the sign shown below and put it in his pickup truck.

BOA_sign

He gets lots of comments and has become a local celebrity. His bosses decided they don’t need BOA as an enemy (who knows who will finance your next project) and told him to keep it off the job site. He complied, mounting the sign on the trailer shown above and dragging it around on his non-work hours. It’s a fun article to read if you have the time.

Finally, in anticipation of the thrills and chills of grandchildren, I give you this 25 second video that will make you laugh. Doesn’t he look like a future engineer, as he parks midway between the two cars?

[youtube=http://www.youtube.com/watch?v=4UMWhJsd0JE]

CONSTRUCTION KNOWLEDGE BLOG

August 21, 2009

Opportunities Abound for Improved Construction Productivity: Part 3
Filed under: Productivity — nedpelger

This will be my last post in this series. I hope you thought about how our industry could operate differently…better. We get so caught up in our daily fights that we often don’t consider the future. I’m proposing you take some time to think about how your work could change, how things could be done better. Then put forth some effort to move things in that direction.

Whether you own your own business or work for others, your value depends on what you deliver now and how you improve in the future. Please commit to improving both those measures. You’ll be glad you did.

The video gives a good visual introduction to BIM.

[youtube=http://www.youtube.com/watch?v=u9bxtBVkw1g]

One of the features that will ultimately be most useful will be 4D modeling. Obviously the 3D model shows the various building components. If we assign time as the next dimension (4D) we can build the model to show how it will look each day of construction. Think of the advantages of being able to design the exact construction sequence on a tricky project all in advance. Also, that information can be communicated to everyone involved, keeping all stakeholders working in the same  direction.

It’s a small stretch to go from 4D to 5D, which could show which materials or equipment or labor is needed at each moment in time and each location. Imagine how these technologies will change what we do.

I encourage you to take some time to think and learn about where our industry is headed. You’ll certainly have a better seat when we get there!

CONSTRUCTION KNOWLEDGE BLOG

August 19, 2009

Opportunities Abound for Improved Construction Productivity: Part 2
Filed under: Productivity — nedpelger

In the previous post on this topic, I discussed the potential power of Building Information Modeling (BIM) and of decreasing productivity in construction trades. For many years, I’ve understood the industry fails in building design and planning. All parties allow the acceptable level of performance to be so low, then we resolve things in the field. This pattern harms construction productivity more than any other factor.

Owners, Architects/Engineers and construction Project Managers have failed to achieve good designs and planning. Too many traditions remain from the early 1900s, things like shop drawings really showing all the critical information. This process allows A/Es to be sloppy in their design, knowing what they show isn’t what anyone builds from.

Let’s consider structural steel. The structural engineer lays out a grid and sizes members, but doesn’t design the connections (which are the most critical element of the design, i.e. most likely to fail). The old rationale for this procedure was that various steel fabricating shops did their connections differently and there were cost benefits to letting them decide. In current times, any steel shop can do any connections. The Structural Engineers just don’t want the liability of fully designing the steel…and it’s just the way we do things.

We miss an opportunity for truly efficient design, with one party (the Structual Engineer) going through the design process one time, correctly. The current method also keeps everyone else that works around the structural steel somewhat vague about what will really be installed. So the trim carpenter doesn’t really know how the framing of the columns can be detailed since the connections aren’t clear. Also, the duct and sprinkler contractors have to make assumptions in their shop drawings which may or may not be correct.

Have you ever struggled with the system as it currently works? What improvements could occur? How?

CONSTRUCTION KNOWLEDGE BLOG

August 18, 2009

Take the Time to See the Beauty
Filed under: Cool Projects — Tags: , — nedpelger

The Beautiful Wife and I went west this past weekend with a couple of friends to tour Frank Lloyd Wright houses. Since Fallingwater is only a few hours away, we’ve visited it many times over the years. It’s such a perfect jewel of a house. The American Institute of Architects named the house “the best all-time work of American Architecture.” TBW and I are shown below at the money shot for Fallingwater.

Us at Fallingwater

Every time I visit Fallingwater, another aspect of the design shines out to me. This time the flagstone floors amazed me. Somehow I felt like I was walking barefoot in a a stream.

As I studied the construction sequence of the house, I learned Frank Lloyd Wright wasn’t on site much. Most of the real decisions, then, were made by the contractors, material suppliers and the young on-site architect who worked for Wright. I can imagine this team working through challenging details, trying to get to the best, reasonable solution.

Our teams often work that way on projects and it’s the most rewarding aspect of building. Yet we all need to bring more than just our own specific expertise to get to great solutions. We all should bring a context of beauty and excellence. We get that context by seeing it in other places.That’s why I take time to visit beautiful buildings and bridges and encourage you to do the same.

The Kentuck Knob house that Wright designed a few miles down the road from Fallingwater also stirs me. Wright wanted to change the way Americans live. He hated that people lived in ugly boxes. He wanted intentional living with an appreciation of things beautiful. He designed houses where nature seemed to flow into the living space. These Usonian houses were small, open and inspiring.The photo below shows the Kentuck Knob carport (Wright never designed garages or basements because he hated clutter) with wood cut-out windows that he called “Poor man’s stained glass”.

Kentuck Knob carport

The outdoor spaces are as amazing as the interiors. I especially liked “Bernardine’s reading room” shown in the photo below from a view on the deck.

Reading Room Kentuck Knob

The grounds of Kentuck Knob have one of the best sculpture gardens I’ve ever seen. One of the many pieces that I loved is shown below, a remnant from a London building.

2000FLW 060

and a pissoire from Paris.

Pissoire

CONSTRUCTION KNOWLEDGE BLOG

August 13, 2009

Opportunities Abound for Improved Construction Productivity: Part 1
Filed under: Productivity — Tags: — nedpelger

An entrepreneur says, “For what opportunity do I have an unfair advantage?” Learning to see where those advanatages may be develops as a useful skill. Whether you’re trying to delight customers in your own business or add value in the company you work, learn to look for advantages you can bring to the game.

I see Building Information Modeling (BIM) as one of those advantages…probably the most important one I’ve seen in a decade. Most of us still work with 2D drawings, even though AutoCad produces them. Most architects still think in terms of plan, elevation and section. BIM doesn’t just take us to 3D drawings (which are only slightly more useful than 2d) but requires each component of the building to be modeled.

A conduit isn’t just a line on the print, it becomes a 3D tube that exists in the virtual design. Of course the obvious advantage is to see the intersection of conduits, ducts, sprinkler pipes, etc and prevent crashes. The more important advantage, though, involves the potential for huge construction productivity increases from BIM design. I haven’t read about anyone else seeing this potential.

Those of us who work in the day-to-day building design and construction business understand how much  inefficiency happens on a typical project. Designs typically aren’t well coordinated between all the professional disciplines and Owner’s change their minds often when they begin to see what they are getting. Labor productivity doesn’t suffer because workers don’t want to work, but because Owners, Designers and Supervisors don’t clear the way.

In 2004, a Stanford University study showed that construction labor productivity declined almost 20% from 1964 to 2003, while other non-farm productivity  increased by over 200%. That’s an astonishing statistic. Can construction really have done that badly?

If you have an opinion, leave me a comment. I’ll be writing more about it soon.

CONSTRUCTION KNOWLEDGE BLOG

August 10, 2009

Don't Try this at Home
Filed under: Ned Weirdness — nedpelger

I’m working on a post about Building Information Modeling and 4D and 5D charting, but saw this fun little video that I’ll share in the meantime.

[youtube=http://www.youtube.com/watch?v=3wAjpMP5eyo]

Do you think that guy really flew that far and landed in that little pool? I’m skeptical, but I suppose they could have tested it with a dummy to get a concept of the range.

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