April 29, 2006

Comparative seismic performance of four structural systems

By: Ronald Mayes, Craig Goings, Stephen Harris, Naguib, Wassim I.

Abstract: This paper provides a comparison of the maximum inter-story drifts and floor response spectra of both a three and nine story building each with four different steel structural systems - moment frame, buckling restrained braced frame,...

Services:Structural Investigation
Keywords:Base Isolation, Nonlinear, Seismic Engineering and Retrofit
April 29, 2006

Seismic forces in diaphragm design

By: Ronald Mayes, Kevin Moore, Eatherton, Matthew, Naguib, Wassim I, Sabelli, Rafael, Boardman, Tom

Abstract: The 1994 Northridge Earthquake offered several instances of diaphragms and their components performing inelastically and even causing partial collapse, most notably in parking garages. While diaphragm failures are not widespread, it is...

Services:Structural Investigation
Keywords:Natural Phenomenon Hazard, Nonlinear, Seismic Analyses, Seismic Engineering and Retrofit
March 30, 2006

Reconstructing the Bernie King Pavilion

By: Leonard Morse-Fortier

Abstract: A longstanding and excellent client called with a unique problem. The Metropolitan District Commission (MDC) was charged with maintaining the Bernie King Pavilion. Built in the late nineteenth century, the structure is an open pavilion...

Services:Materials Investigation, Structural Design, Structural Investigation
Markets:Sports & Entertainment
Keywords:Exhibitions/Park Pavilions, Historic, Roofing, Low-Sloped, Wood
March 30, 2006

Evaluation and Rehabilitation of Deteriorated Parking Structures: Part 2

By: Michael Brainerd, Charles Russo

This article is the second of two that examine the types of deterioration found in parking structures and how to repair and mitigate that damage. The authors discuss repairing delaminated or spalled concrete over corroded reinforcement,...

Services:Structural Investigation, Structural Rehabilitation
Markets:Parking
Keywords:Concrete, Corrosion
February 27, 2006

Design tips for steel in low or moderate seismicity regions

By: Dominic Kelly, Joseph Zona

Abstract: This paper provides tips to structural engineers who design buildings in regions of low or moderate seismicity. These tips are based primarily on the authors' experiences designing, peer reviewing, and investigating steel-framed...

Services:Structural Design, Structural Investigation
Keywords:Metal-Steel, Peer Review, Seismic Engineering and Retrofit
January 30, 2006

Evaluation and Rehabilitation of Deteriorated Parking Structures: Part 1

By: Michael Brainerd, Charles Russo

Abstract: This article discusses the deterioration of older concrete parking structures, the type of testing available to determine the structure's condition, and how to estimate the future performance of repair and protection alternatives....

Services:Materials Investigation, Structural Investigation
Markets:Parking
Keywords:Concrete, Condition Assessment, Corrosion, Field Testing, Laboratory Testing and Analysis, Petrography, Slab
December 30, 2005

Field Load Testing: Chapter 21

By: Donald Dusenberry

In Structural Condition Assessment, editor-in-chief Robert T. Ratay gathers together the...

Services:Structural Investigation
Keywords:Field Testing, Testing, Load
December 30, 2005

Designing and specifying self-adhering flashings for the window-wall interface

By: Robert Bateman

Abstract: Self-adhering flashings provide a flexible and durable material that conforms to various wall planes, particularly those occurring in recessed wall openings. New flashing methods for the window-wall interface are available for this...

Services:Building Enclosure Design
Keywords:Walls, Waterproofing, Windows
December 30, 2005

Management of Utah Highway Culverts

By: Jesse Beaver, McGrath, Timothy J.

Abstract: More than 47,000 culverts have been installed under the highways of Utah. The Utah Department of Transportation (DOT) maintains these culverts but has no comprehensive system for assessing condition and planning maintenance activities....

Services:Structural Investigation, Structural Rehabilitation
Markets:Highway & Tunnel
Keywords:Condition Assessment, Culverts and Storm Drains, Inspection
December 30, 2005

A Mausoleum on Shaky Ground; de la Montoya Mausoleum, Colma, California

By: Carolyn Searls, Ronald Mayes, Marrow, Joshua M.

Abstract: Investigation determined whether it was earthquakes, vibrations from nearby construction, or stone deterioration that led to claims of damage to this historic mausoleum.

Services:Building Enclosure Investigation, Materials Investigation, Structural Investigation
Markets:Religious
Keywords:Damage, Historic, Seismic Analyses, Stone, Vibration / Fatigue Analysis

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