September 2, 2020

Sub-Slab Drainage Systems

Many buildings have enclosed below-grade spaces, which can either be exposed to permanent, temporary, or perched groundwater conditions.  Typically, these groundwater elevations fluctuate several feet, if not more, due to precipitation or...

August 18, 2020

CIPP for Tomorrow: What Is Needed?

By: Murat Engindeniz, Michael Gipsov

Washington Suburban Sanitary Commission (WSSC Water), one of the largest users of carbon fiber reinforced polymer (CFRP) liners for large diameter pressure pipe, is considering expanding its use of FRP liners to include small diameter pressure...

August 18, 2020

Uncertainty Quantification of the Structural Capacity of Pipelines Using Separation of Variables Methodology

Evaluation of pipeline infrastructure system resilience requires an understanding of pipeline risk of failure. Current methods for pipeline risk assessment are largely deterministic, and as such, do not explicitly represent the effect of...

August 6, 2020

Overcladding Strategies for Institutional Buildings

By: Michael Chafetz, Douglas Pac

Building façades require upkeep and repair over time. These repairs can often be costly and disruptive to operations and occupants. Overcladding is one method that can be implemented to renew or upgrade the exterior façade while allowing the...

July 15, 2020

Interlaboratory Study of the Standard Test Method for Evaluating Bond of Seven-wire Steel Prestressing Strand

By: Ashwin Poudel, Rémy D. Lequesne, William N. Collins, Enrico Lucon, David Darwin
An interlaboratory study involving 19 laboratories was conducted to quantify the precision of ASTM A1061-16.
July 7, 2020

New IBC Rules for Insulation in Unvented Enclosed Roof Framing Assemblies

The 2015 version of the International Building Code includes new provisions that relate to unvented enclosed rafter/truss assemblies and unvented attics, which dictate how design professionals specify vapor retarders and placement of insulation in compact roof assemblies for moisture control.
June 19, 2020

Best Practices for Designing Smoke Control Systems

By incorporating NFPA 92 with best practices, fire protection engineers can successfully design smoke control systems for buildings.
school with tornado damage
June 2, 2020

Storm Shelter Design Guidance for K-12 Schools

In recent years, the International Building Code (IBC) has mandated that all new construction for K-12 schools in most of the Midwest and South Central United States include a community storm shelter. It is important for community officials and project team members to understand these requirements and follow best practices for designing these critical structures.
April 24, 2020

Understanding New York City’s Green New Deal and Updated Energy Code

On 12 May 2020, the updated New York City Energy Conservation Code (NYCECC) will go into effect with several significant changes. It is important for building owners and project stakeholders to be aware of what is changing and understand what is required to meet the new code moving forward.
April 24, 2020

Stub column response in light of local vs distortional buckling

By: Benjamin Schafer, Shahabeddin Torabian, Gaurav Somnath Chobe, James K. Crews

The objective of this paper is to study the effect of distortional buckling on typical stub column testing used by industry to determine the effective area of cold-formed steel members under compression. Testing standards such as AISI S902 are...