September 12, 2018

A Hospital's Oasis

The patients at Children’s National Health System’s main campus in Washington, D.C., needed fresh air. Going outside, however, is not always simple for hospitalized children, many of whom are not fully mobile or are connected to...

September 1, 2018

An Education in Mass Timber

By: Greggrey Cohen, Jeffrey Langlois, Nancy Varney

The University of Massachusetts (UMass) wanted to bring its design programs — Architecture, Landscape Architecture and Regional Planning, and Building and Construction Technology — together in one creatively designed building...

August 10, 2018

Field mockups for exterior wall systems: Will the design pass the test?

What are the risks involved with enclosure design and how can owners and designers help mitigate them? How does one verify compliance with specified performance requirements, especially for critical elements intended to protect the building from...

July 10, 2018

Designing for the Challenges of Zinc Roofing

On 15 June, Building Enclosure magazine published the article “Designing for the Challenges of Zinc Roofing,” written by Jeff Ceruti, Dan Clark, and ...

June 25, 2018

Learning from the Storm

Hurricane Sandy damage mitigationHurricane Sandy exposed inherent vulnerabilities in our infrastructure and built...

May 16, 2018

Applying PIANC Fender Design Guidance to US Design Codes

This paper provides a proposed rational approach for marine terminal designers in the United States to accompany the PIANC document and apply the factors outlined within it to standard US design codes. In addition, this paper provides commentary on the various topics covered within the PIANC guidance to provide some additional clarity and updated information based on the latest information and research for various topics.
May 16, 2018

Challenges and Considerations in Selection, Anchorage Design, and Installation of Quick-Release Mooring Hooks on Existing Structures

Quick release mooring hooks have become increasingly popular for use in design of new mooring systems, especially for larger vessels. Hooks offer several operational and safety benefits over the standard bollards or cleats. Such benefits include...

May 16, 2018

Evaluation of Marine Structures for Kinematic Effects

In performance-based seismic design, a marine structure is designed for inertial loading effects associated with the dynamic response of the structure. Some waterfront structures also experience seismically induced kinematic effects, associated...

April 10, 2018

Experimental Evaluation of a Procedure for SMF Continuity Plate and Design

By: Adel Mashayekh, Chia-Ming Uang

The AISC Seismic Provisions require that continuity plates in a special moment frame (SMF) welded moment connection be connected to the column flanges by complete-joint-penetration groove welds. Tran et al. (2013) have proposed a design procedure...

April 4, 2018

Experimental Evaluation of a Procedure for SMF Continuity Plate and Weld Design

By: Adel Mashayekh, Chia-Ming Uang
The AISC Seismic Provisions require that continuity plates in a special moment frame (SMF) welded moment connection be connected to the column flanges by complete-joint-penetration groove welds. Tran et al. (2013) have proposed a design procedure that allows the designer to evaluate the required forces in the continuity plates such that more economical welds (e.g., fillet welds) can be used; the required thickness of the continuity plates also need not be the same as that prescribed in the AISC Seismic Provisions.

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