October 4, 2017

Buckling of Conventional and High-Strength Vanadium Steel Double-Angle Compression Members: Computational Parametric Evaluation of Slenderness Modification Factors

By: Mohamed Talaat, Ronald Mayes, Mark Webster, Frank Kan, Ahmet Citipitioglu

High-strength, low-alloy vanadium (HSLA-V) steel offers higher strength and toughness than conventional steel. The resulting lighter weight and more slender structural components are more susceptible to buckling in compression. Of particular...

September 28, 2017

Evaluating Building Enclosures After Hurricanes

building enclosure storm damageHurricanes bring wind, rain, and flooding that can damage buildings, causing...

September 22, 2017

Influence of Edge Bearing on the Front-edge Shear Breakout Capacity

By: Neal Anderson, Donald F. Meinheit

Edge bearing stresses on shear-loaded anchorages can enhance the shear capacity because of the confining stresses provided by the compressive bearing stress. However, too much bearing stress can have a negative influence on...

September 22, 2017

Tension Tests of Headed Stud Anchorages in Narrow/Thin Edge Members

By: Neal Anderson, A. Koray Tureyen, Donald F. Meinheit

The Precast/Prestressed Concrete Institute (PCI) sponsored a comprehensive research program to assess the capacity of headed-stud group anchorages. The PCI program was initiated in response to significant differences...

September 6, 2017

Simpson Gumpertz & Heger Authors Review Advancements in Building Enclosure Technology

Building Operating Management magazine recently published an article written by several Simpson Gumpertz & Heger (SGH) authors discussing the state of building enclosure technology. In “8 Technology Developments Reshaping High-...

August 14, 2017

Increasing Pipeline Pressure Rating Using CFRP Liners: A Case Study on an NTMWD Pipeline

By: Murat Engindeniz, Kyle Sanderson, Anthony Samarripas, Aliza Caraballo

The North Texas Municipal Water District (NTMWD) is considering making improvements to the transmission system and pumping scenarios to provide redundancy to their Wylie-Rockwall-Farmersville (WRF) Pump Station, and the planned pumping...

August 14, 2017

WSSC Breaks Its Record in CFRP Lining of PCCP in One Outage

By: Murat Engindeniz, Rasko Ojdrovic, Michael P. Gipsov

Washington Suburban Sanitary Commission (WSSC)’s condition assessment and repair program on critical transmission mains continued in spring 2016 with a recordbreaking project where a total of forty-one 60 in. to 66 in. diameter prestressed...

August 1, 2017

Structural Steel Plate Buried Bridges

The state of U.S. infrastructure and need for funding to improve it has been highlighted through efforts of national engineering organizations such as the American Society of Civil Engineers’ Infrastructure Report Card and the American...

July 17, 2017

ACI 562-16: The ACI Concrete Repair Code

By: Kevin Conroy, Keith Kesner

Simpson Gumpertz & Heger (SGH) Senior Project Manager Kevin Conroy coauthored an article describing the American Concrete Institute’s (ACI) updated building repair code for existing concrete structures. The...

July 3, 2017

Chicago’s Navy Pier Centennial Wheel

By: Jared Brewe, Ken Maschke, P.E., John E. Sheridan

STRUCTURE magazine recently published an article co-authored by Jared Brewe discussing the recent Navy Pier Ferris Wheel project. SGH assisted in the evaluation of construction picks and crane placements, crucial elements to...