April 29, 2006

ATC-58 Project Overview: Development of Next-Generation Guidelines for Performance-Based Seismic Design of Buildings

Abstract: Design procedures for seismic resistance contained in building codes are intended to enable buildings to provide acceptable levels of performance in earthquakes, but the procedures are not truly performance-based. These procedures...

April 29, 2006

The performance of steel-frame buildings with infill masonry walls in the 1906 San Francisco earthquake

By: Ronald Hamburger, John Meyer

Abstract: Following the great 1906 San Francisco earthquake and fire, engineers recognized the superior performance of buildings with complete vertical load-carrying steel frames and infill masonry walls. These buildings were noteworthy in their...

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,...

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...

March 30, 2006

Reconstructing the Bernie King Pavilion

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...

March 30, 2006

Evaluation and Rehabilitation of Deteriorated Parking Structures: Part 2

Abstract: 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...

February 27, 2006

Design tips for steel in low or moderate seismicity regions

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...

January 30, 2006

Evaluation and Rehabilitation of Deteriorated Parking Structures: Part 1

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....

December 30, 2005

Lessons Learned: Structural Upgrade of Sutro Tower

Sutro Tower, in San Francisco, California is a 770-foot high, freestanding steel broadcast tower supporting three main, 215-foot high antenna structures and numerous ancillary broadcast equipment. It is owned and operated by a consortium of the...

December 30, 2005

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

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...

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