ACI Publishes SP-348, Foundations for Dynamic Equipment

ACI announces availability of a new Special Publication Foundations for Dynamic Equipment edited by Dr. Carl A. Nelson of ESI Engineering ACI recently published SP-348, Foundations for Dynamic Equipment, edited by Dr. Carl Nelson, Consulting Engineer at ESI Engineering and member of ACI Committee 351—Foundations for Equipment and Machinery. This publication grew out of the Technical Session entitled “Application of ACI 351-C Report on Dynamic Foundations,” held at the ACI Spring 2019 Convention in Québec...

ESI Video – “Achieving Acoustic Zen in the Open Office” Webinar

Ryan Skoug, P.E. (Acoustics/OR) of ESI Engineering was invited by Interior Architects to be a co-presenter for their “Achieving Acoustic Zen in the Open Office” webinar.  The event had 150 participants who learned more about how architects can work with acoustical consultants to improve sound issues in office buildings, both during project design and when troubleshooting issues afterwards.  To watch the presentation, click on the following link: https://interiorarchitects.com/webinars/achieving-acoustic-zen-in-the-open-office/ Let our team at ESI...

ESI Video – ESI Presentation at the 2020 ASA Fall Conference

Ryan Skoug, P.E. (Acoustics/OR) of ESI Engineering was an invited presenter at the 2020 Fall Conference of the Acoustical Society of America for the session on “Sound Transmission and Impact Noise in Buildings II”. Read more and watch a video of the presentation by clicking the link below.

ESI Invited to Present at ASA 2019 Fall Conference

Ryan Skoug of ESI Engineering just returned from San Diego, California where he was an invited presenter at the 2019 Fall Conference of the Acoustical Society of America for the session on “Sound Transmission and Impact Noise in Buildings”.

ESI Video – Meeting Room Speech Intelligibility

ESI recently worked with a client to improve meeting room speech intelligibility for in-person, conference call, and video conference meetings. This video describes the user complaints, the existing acoustic conditions, and a methodology to improve intelligibility in these rooms.

ESI at ASTM 2019 Fall Conference!

Ryan Skoug of ESI Engineering just returned from Houston, Texas where he attended the 2019 Fall ASTM Conference for the E33 Committee on Building and Environmental Acoustics.

ESI at ASTM 2019 Spring Conference!

Ryan Skoug of ESI Engineering just returned from Denver, Colorado where he attended the 2019 Spring ASTM Conference for the E33 Committee on Building and Environmental Acoustics.

ESI at ACI 2019 Spring Convention!

Carl Nelson of ESI Engineering has organized a technical session titled "Application of ACI Committee 351 Report on Dynamic Foundations" at the ACI 2019 Spring Convention in Quebec City, Canada.

Regions Birth Center

ESI provided noise control consulting services to BWBR for the Regions Hospital Family Birth Center.

A New Rating Method for Low-Frequency Impact Noise

ESI has been developing a testing and rating methodology to evaluate low-frequency, or “thudding” footfall noise through multi-family floor/ceiling assemblies that is currently ignored by today’s standardized methods.

2017 AIA Minnesota Honor Awards

ESI is proud to have been a team member on two of the thirteen projects recognized by the AIA Minnesota Honor Awards; the Minnesota State Capitol Restoration and the Ramsey County Library in Shoreview.

Getting Your Head Around the New Design Guide 11

The long-awaited 2nd Edition of AISC's Design Guide 11 (DG11) was made available in 2016. This article will summarize the changes relating to Chapter 6: "Design for Sensitive Equipment and Sensitive Occupancies" and the corresponding portions of Chapter 7 relating to the same topic.

A Smaaash Hit!

ESI finished up 2016 with a number of notable projects. One that got a lot of visibility (it was featured on the front page of the Star Tribune), was the design of the Smaaash go-kart track at the Mall of America.