Engineering

Do This One Simple Trick to Lower Your Energy Bills for Your Home

by Dean Dalvit January 20, 2017
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We had the pleasure of having an entry in the recent Parade of Luxury Homes in Evergreen Colorado, and our home was by far the largest on the tour. Many people remarked at the size of the home and questioned what it took to heat […]

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Double Skin Façade

by EVstudio AEP January 20, 2017

Most buildings that we see are single skin. In low rise structures the outside will be stucco, siding, some type of masonry etc. In taller buildings the exterior veneer is often more varied and includes glass, metals and other materials. A method of construction that […]

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The Escalating Cost of Escalators

by Dean Dalvit January 20, 2017

Often in larger scale commercial developments, vertical circulation is handled by escalators in addition to elevators in order to move large volumes of people from one space to another. Escalators are complex truss structures with a remarkable mechanism of chained treads that move in sync […]

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Site Visit: Ohio River Bridges Project

by Katelyn Wager January 20, 2017
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I recently returned to my hometown of Floyds Knobs, Indiana, which is a small town just north of Louisville, Kentucky.  For those of you not familiar with the area, the Ohio River cuts Kentuckiana (the local name for central northern Kentucky and southern Indiana) in […]

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Hydronic Radiant Floor Heating in Post Tension Slab-on-grade Foundations

by Jim Houlette January 20, 2017

The structural department recently designed and observed the construction of a post tension slab-on-grade foundation that incorporated a hydronic radiant floor system.  Although there is nothing special about a hydronic radiant floor system in the basement floor, many builders and owners wonder if it can […]

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Precompression vs. Balanced Load in Post-Tension Concrete

by Calvin Curtis January 6, 2017

My Post-Tension elevator speech is pretty well rehearsed at this point: “We drape steel cables — tendons — in the concrete forms, and then place the concrete.  Once it cures, we pull the ends of the tendons, which try to straighten out.  That does three […]

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Confirmed: Treated Lumber Now Looks Quite Similar to Untreated Lumber

by evstudio January 6, 2017
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It recently while performing routine structural observations it has come to find that the process of treating lumber has changed and modern treated lumber looks quite different than that of the last 5 or so years. Below is an example of what treated lumber had […]

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Steel Screw Pile Foundation

by Jim Houlette November 30, 2016

A deep foundation system that is gaining popularity in areas with difficult soil, contaminated soil and due to its speed of construction is steel screw piles. At first glance screw piles look like the typical helical pier.  However, there are significant differences that make a […]

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Sequential Stressing and Elastic Losses

by Calvin Curtis November 30, 2016
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In a previous post, I discussed the sources of short- and long-term losses in unbonded post-tension tendons.  Recently, a question came up on one of my LinkedIn groups regarding elastic shortening and sequential stressing. To refresh your minds, concrete — which is generally regarded by […]

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Denver Engineers Not Surprised by New Post-Tension Rule

by Calvin Curtis November 30, 2016
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Good day!  Your usual post-tension maniac here, with more exciting information on post-tensioning! A few months ago, I mentioned that finishing post-tension tendons was an area of special concern, since corrosion is very much the arch-enemy of post-tension tendons.  There are actually a lot of […]

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Clearance of Steel Beams in a Crawlspace

by Jim Houlette June 10, 2016

For any elevated structural you need to provide sufficient space below the framing members to meet code requirements.  But there are several other reasons why you should provide additional clearance. If you are building a structural floor with wood joists you must provide 18” clearance […]

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Stresses Structural Engineers Encounter

by EVstudio AEP June 10, 2016

There are three kind of stresses structural engineers see on a daily basis. These stresses can arise from from various kinds of loading acting on a structure. These three stresses are Normal Stress, Shear Stress & Flexure or Bending Stress. These stresses are important to […]

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