June 1, 2021

Stabilizing San Francisco’s Leaning Tower

By: Ronald Hamburger, Stephen Harris, Lachezar Handzhiyski

Abstract
Located at 301 Mission Street, the 650-foot-tall Millennium Tower was designed to be San Francisco’s premier residential address. The project geotechnical report predicted 4 to 6 inches of settlement over...

Services:Structural Design, Structural Investigation
Keywords:Building Settlement, High Rise, Seismic Analyses, Seismic Engineering and Retrofit
April 8, 2021

Waterproofing Structural Elements in the Water Table

By: William Woods, Daniel Gibbons

Waterproofing below-grade portions of buildings has become increasingly important to owners as technological advancements and limited city space have pushed basements deeper into the ground and further into water tables.

...

Services:Building Enclosure Design
Keywords:Below-Grade, Below-Ground Waterproofing, Waterproofing
March 31, 2021

Questions to Consider: NYC Emissions Regulations for New and Existing Buildings

By: Cheryl Saldanha, Sean OBrien
In 2020, New York City Mayor Bill de Blasio unveiled a $14 billion plan, called OneNYC 2050, as an update to the city’s ongoing sustainability programs. The plan introduces several goals and initiatives for New York City to confront the impacts of climate change and economic inequality and improve the city’s infrastructure by the year 2050.
Keywords:Building Science, Green / Sustainable Design
March 26, 2021

Communicating in a BIM World

By: Michael Bolduc, Kristopher Dane

As early as 1962, Douglas Englehart presaged BIM as “an evermore-detailed, interlinked structure, which represents the maturing thought behind the actual design.” Since this early vision, building designers have wholeheartedly adopted...

Services:Structural Design
Keywords:BIM, Revit/BIM
March 2, 2021

Significance of structure–soil–structure interaction for closely spaced structures

By: Christine Roy, Said Bolourchi, Daniel Eggers

Abstract
Nuclear facilities typically consist of many closely spaced structures with different sizes and depths of embedment. Seismic response of each structure could be influenced by dynamic structure–soil–...

Markets:Nuclear
Keywords:Soil-Structure Interaction
March 2, 2021

Seismic Analysis and Design of a 21,000-Gallon Frac Tank Considering the Fluid-Structure Interaction Effects for a FLEX Response at a Nuclear Power Station

By: Christine Roy, Michael Mudlock

Abstract
After loss of power and reactor cooling capability at the Fukushima Daiichi nuclear power plant due to an extreme seismic event, the U.S. nuclear energy industry developed a diverse, flexible approach to implement...

Markets:Nuclear
March 2, 2021

A Simplified Approach for Calculation of Fluid Pressures on Pool Walls Due to Seismic Effects of Submerged Equipment Considering Non-Linear Equipment Sliding and Fluid-Structure Interaction Analysis

By: Christine Roy, Daniel Eggers, Michelle Evans

ABSTRACT
Many nuclear facilities house reinforced concrete spent fuel pools that are used to process nuclear fuel prior to its long term storage. These water pools contain fuel storage racks that sit on the pool floor....

Markets:Nuclear
snow loads; roof; structural load
February 22, 2021

Evaluating Snow Loads on Structures

By: Pedro Sifre

During winter months, snowstorms can blanket colder areas with snow and ice in amounts that typically do not adversely affect building structures and infrastructure. However, unusual weather patterns that combine sequences of frequent storms with...

Services:Structural Investigation
Keywords:Failure Investigation, Heavy Loads, Snow and Ice
February 17, 2021

Wind Load Design for Petrochemical and Other Industrial Facilities

By: Paul Summers, Guzhao Li, Carlos Ortega
Prepared by the ASCE Task Committee on Wind-Induced Forces of the Oil and Gas Committee of the Energy Division of ASCE.
Wind Load Design for Petrochemical and Other Industrial Facilities, Second Edition, provides general guidelines...
Markets:Oil & Gas
Keywords:Wind Loads
February 9, 2021

High-Strength Steel Bars in Earthquake-Resistant Reinforced Concrete T-Shaped Walls

By: Mohammad Sajedul Huq, Erick A. Burgos, Rémy D. Lequesne, Andrés Lepage

Abstract:
Six large-scale reinforced concrete T-shaped slender walls were tested under reversed cyclic loading to study the effects of reinforcing bar mechanical properties on wall deformation capacity. Effects on lateral...

Keywords:Metal-Steel

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