January 19, 2017

Low-Cycle Fatigue Performance of High-Strength Steel Reinforcing Bars

By: Chase Slavin, Wassim M. Ghannoum

New high-strength reinforcing steel bars (HSRB) are under development in the United States, driven by constructability and economic and environmental incentives. An experimental study was undertaken to compare the low-cycle fatigue behavior of...

Services:Materials Design
Keywords:Concrete, Metal-Steel, Vibration / Fatigue Analysis
January 18, 2017

Mooring Line Systems for Tanker Vessels – Current Standards in Analysis and Design Compared to Real Life Data

By: Rune Iversen, William Bruin
Design and analysis of moorings of tanker vessels have traditionally been approached from two sides: from the vessel side, regulated by classification societies and with proposed guidelines from OCIMF, and from the land side, regulated by local codes and standards.
Services:Structural Design
Markets:Ports & Terminals
Keywords:Codes & Standards, Marine Engineering, Mooring and Berthing
December 14, 2016

Parametric Study on Effects of Pile Orientation in Integral Abutment Bridges

By: Brooke Quinn, Scott A. Civjan

For integral abutment bridge (IAB) design, there is no consensus on the preferable orientation of the piles supporting the abutment, although variations can affect overall bridge behavior and forces in the piles. This paper details a parametric...

Services:Structural Design
Markets:Bridge
Keywords:Bridge, Major Vehicular, Finite Element Analysis, Pile
December 12, 2016

Evolution of ACI 562 Code – Part 10

By: Gustavo Tumialan, Nestore Galati, Antonio Nanni

The December 2016 issue of Concrete International magazine includes an article co-authored by Gustavo Tumialan with Nestore Galati of Structural Technologies and Antonio Nanni of the University of Miami. The article, “...

Services:Structural Rehabilitation
Keywords:Concrete, Concrete Rehabilitation, Testing, Load
November 17, 2016

Blind-Side Below-Grade Waterproofing: Lateral Water Migration, Confining Pressure and Bond Relationships

By: John Karras, Anthony Nicastro

As a follow-up to their preliminary laboratory testing program related to lateral water migration with blind-side below-grade waterproofing membranes, John Karras, Anthony Nicastro and former SGH employee Keith Nelson recently authored...

Services:Building Enclosure Design
Keywords:Below-Ground Waterproofing
October 3, 2016

Continuous Transverse Reinforcement — Behavior and Design Implications

By: Neal Anderson

Recent advancements in automatic reinforcing bar bending machines allow fabrication of continuous transverse reinforcement (CTR) with 90-degree transverse bends. The resulting closed, continuous reinforcement increases the speed by...

Services:Structural Design
Keywords:Concrete, Concrete-Reinforced
September 20, 2016

Decoding the Code: 2016 New York City Energy Conservation Code

By: Sean OBrien, Cheryl Saldanha

field testingOn 3 October 2016, the updated New York City Energy Conservation Code (NYCECC) will go...

Services:Building Enclosure Design
Keywords:Codes & Standards, Energy (Energy Modeling, Energy Audits, Energy Commissioning)
September 9, 2016

Evolution of ACI 562 Code – Part 7

By: Jared Brewe, Gustavo Tumialan, Paul Kelley

The September 2016 issue of Concrete International Magazine includes an article by Jared Brewe (Senior Staff I, CHI SE), Gustavo Tumialan (Senior Project Manager, BOS SE), and Paul Kelley (Senior Principal, BOS SE). The article, “Evolution...

Services:Structural Investigation, Structural Rehabilitation
Keywords:Codes & Standards, Concrete, Concrete Rehabilitation
August 9, 2016

Silicon Valley Mid-Summer Emergency: Santa Clara Addresses the Peak-Demand Repair of a 96-inch Pipeline

By: Rasko Ojdrovic, Peter Nardini, Anna Pridmore

This paper presents Santa Clara Valley Water District's (SCVWD) approach to addressing their first high profile water main failure including their application of failure investigation, emergency condition assessment, pipe...

Services:Structural Investigation
Markets:Water/Wastewater
Keywords:Composites-FRP / CFRP / GFRP, Pipeline, Pipeline, Underground
August 9, 2016

Rerounding of Deflected Buried Pipe Subjected to Internal Pressure

By: Mehdi Zarghamee, Atis Liepins

This paper presents a theoretical basis for the rerounding effect of internal pressure on deflection and stresses in buried pipe. The nonlinear differential equations governing pipe-soil interaction of deflected buried flexible or semi-rigid pipe...

Services:Structural Investigation
Keywords:Pipeline, Pipeline, Underground, Soil-Structure Interaction

Pages