Foundation

Raft Slab-on-Grade Foundation

by Jim Houlette May 11, 2018

A Raft Slab-on-Grade foundation can be as simple as a 4” thick slab with no reinforcement and a shallow perimeter rib to an 8” thick slab heavily reinforced with deep ribs spaced roughly 10’o.c.  The wide range of concrete thicknesses and reinforcement is a function […]

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Reinforcing Concrete Slabs-on-Grade

by Calvin Curtis May 11, 2018

A few weeks ago, I got a great question regarding the reinforcement of concrete slabs-on-grade, so I thought I’d take a quick minute to share how rebar works structurally when the slab is continuously supported by earth. First, it’s important to understand that, structurally, no […]

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Fastening to Concrete – Wedge Style Expansion Anchors

by evstudio March 27, 2018

There are many situations were it may become necessary to attach a timber ledger to a concrete wall. It is desirable in many new homes to lower the elevation of the finished floor to make a home more wheel chair accessible. An example of the […]

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Straight Shaft Drilled Concrete Pier Foundation

by Jim Houlette March 27, 2018

Straight Shaft Drilled Concrete Piers are constructed by drilling a hole into the ground and filling it with concrete and reinforcing. The diameter of the pier varies depending on the load the pier must support.

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Resistance Piers for Economical Foundation Repair

by evstudio February 14, 2018

EVstudio is asked quite frequently to perform structural evaluations of cracked foundation walls. These cracks are often due to settlement. Modern design philosophy (and most geotechnical reports) calls for the original structural engineer to design foundation walls to clear span ten to fifteen feet to […]

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Helical Pier Foundations

by Jim Houlette January 11, 2018

Helical piers are typically used when repairing failed shallow foundations.  The helical piers are a deep foundation system that can be placed alongside existing foundations with very little interference. However, helical piers are also used for new construction as an alternative to typical straight shaft […]

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St Francis of Assisi Catholic Church in Castle Rock

by Jim Houlette January 11, 2018

EVstudio provided post tension foundation design for the recent St Francis of Assisi Church.  The Church is being built by Fransen Pittman and designed by Architectural Innovations, LLC. This was a great project to be a part of.  The project was an addition to an […]

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Wall on Grade Foundation

by Jim Houlette December 29, 2017

Simple and cost effective, but limited in design capabilities.  A wall on grade is just as simple as it sounds.  If the bearing capacity of the soil is moderate to high and the load from the structure is light then a typical spread footing can […]

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Quickly Construct Concrete Pad Footings with FASTBAG

by evstudio November 30, 2017

At a recent seminar I attended I was introduced to the Fab-Form product called FASTBAG. This product is brilliantly simple….a textile bag you can fill with concrete and reinforcing bars to take the place of the wood formwork traditionally utilized to construct pad footings. The […]

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Foundation Construction – When Frost Depth Can Not Be Met

by evstudio October 12, 2017

The 2009 International Residential Code (IRC) specifies that foundation walls, foundation piers and other permanent support of buildings and structures shall be protected from frost heave. As we know, when water freezes it increases in volume. Bearing a structure’s foundation below the frost line helps […]

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The Building Envelope and Energy Savings

by Samantha Coleman August 28, 2017

The building envelope consists of three main elements: the roof, the walls, and the foundation. The main concerns we have for these building elements are protecting the interior of the home from weather and other environmental issues, slowing the transmission of heat and controlling light, […]

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EVstudio Contracted for Value Engineered Structural Revision to Custom Mountain Home

by evstudio August 3, 2017

EVstudio was recently asked to value engineer a proposed revision to the foundation of a custom home in Evergreen Colorado that we had previously provided structural design services for. This particular home was originally designed for a slab on grade lower level floor with an […]

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