October 30, 2006

Fiber-Cement Roofing Slates and Shingles

By: Cash, Carl G., Stephen Condren, Werner Gumpertz

Abstract: Early in the 1980's, manufacturers started to respond to the market desires for a Class A fire-rated steep sloped roofing intensified by fire storms in California where the conventional cedar wood shake roofs were often blamed for...

September 29, 2006

Small-Building Defense Against Terrorism

By: Werner Gumpertz, Lawless, J.M.

Abstract: Sophisticated methods for defense against terrorism have been devised, used, or planned to protect important and exposed facilities of the U.S. government and industry. This paper attempts to expose methods of protection for secondary...

September 29, 2006

The Effective Use of Commercial Computer Software for the Structural Design and Buildings

By: James Parker, Pedro Sifre, Michael Bolduc

Abstract: The development and effective use of commercial design software by engineers for the structural design of buildings, is discussed. General computing tools such as word processing, spreadsheets, office networks, web data, and electronic...

August 30, 2006

The Four Barriers - Concepts for proper wall design and construction

Contemporary building enclosures generally consist of layers of light-weight construction materials designed to prevent water penetration and control condensation, heat flow, and vapor flow. These layers are material assemblies that serve as four...

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

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

Abstract: 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...

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....

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...

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...