August 30, 2006

Seismic Evaluation of Sweeping Bends

Abstract: This paper presents the results of analysis and evaluation of the seismic soil strains resulting from wave propagation or permanent ground deformation on sweeping bends in buried pipelines with bell and spigot joints. A finite element...

August 30, 2006

Predicting and Modeling the Effects of Wall Cladding Ventilation on Sun-Driven Condensation

By: Liyen Kan, Joseph P. Pinon

Abstract: Many wall systems in North America incorporate a drained and vented air cavity behind the cladding. The purpose of this air cavity is to help control the flow of moisture through the wall system. Providing ventilation airflow through...

June 29, 2006

5 [five] signs of facade problems

Just like in medicine, early detection provides the best chance of limiting losses when it comes to facade performance.  The top five tell-tale signs of problems are: cracking, displacement, leaks, material deterioration, and corrosion....

June 29, 2006

Building History with a Modern Touch: Yale University's School of Medicine Extension

The $12 million extension of the Yale University School of Medicine's Sterling Hall of Medicine's B-Wing, located between the existing B-Wing and the Laboratory of Epidemiology and Public Health (LEPH), filled a gap in a crescent-shaped...

May 30, 2006

Update on Slip and Wear in Multi-Layer Azimuth Track Systems

By: Joseph Antebi, Juneja, Gunjeet, Frank Kan

Abstract: Many antennas, such as the 100-m Green Bank Telescope, use a wheel-on-track system in which the track segments consist of wear plates mounted on base plates. The wear plates are typically 2 to 3 inches thick and are case hardened or...

May 30, 2006

Preserving Richmond's Leigh Street Armory

Abstract: Built circa 1895 and listed on the state and national registers of historic buildings, the First Virginia Volunteers Battalion Armory, also known as the Leigh Street Armory, is the oldest armory building standing in Virginia. Simpson...

May 30, 2006

Reconstructing the Bernie King Pavilion

Abstract: The Massachusetts Department of Conservation and Recreation (DCR), formerly the Metropolitan District Commission (MDC), is charged with maintaining the Bernie King Pavilion. Built in the late nineteenth century, this open timber...

May 30, 2006

The ATC-58 project: Development of next-generation performance-based earthquake engineering design criteria for buildings

Abstract: Under sponsorship of the Federal Emergency Management Agency, the Applied Technology Council is engaged in a multi-year effort to develop next-generation performance-based seismic design criteria. The criteria will be applicable to the...

May 30, 2006

Wind vibration analyses of giant magellan telescope

Abstract: The Giant Magellan Telescope (GMT) will be a 21.5-m equivalent aperture optical-infrared telescope located in Chile. The segmented mirror surface consists of seven 8.4-m diameter mirrors. The telescope structure will be inside a...

May 30, 2006

Prequalified connections for special and intermediate steel moment frames for seismic applications, ANSI/AISC 358-05

Abstract: Building code provisions for the seismic resistant design of structures incorporate two basic types of requirements. The first of these is very similar to the code requirements for most other types of loading and comprises specification...

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