November 29, 2006

An Avoidable Tragedy

Abstract: An investigation into the fetal collapse of a scaffold platform on Chicago's John Hancock Center found that project participants failed to adequately meet their responsibilities and avert the disaster....

November 29, 2006

Flashing and Integration (Or Lack Thereof) of Windows with Weather-Resistive Barriers

Abstract: Lack of integration between windows and the building weather-resistive barrier is a systemic problem in many buildings that often leads to leakage within a wall system. Consequences of improper integration typically include leakage,...

November 29, 2006

Practical Means for Energy-based Analyses of Disproportionate Collapse Potential

Abstract: For several decades, the engineering profession has considered techniques to analyze the potential that structures could experience disproportionate collapse and to design them for greater resistance to such collapse. First interest in...

November 29, 2006

Curing the Common Condominium

Abstract: The construction project of Macallen building condominium in Boston is marked by extensive coordination of design and construction team is discussed. The building is conceived by Boston-based Pappas Enterprises and consists of luxury...

October 30, 2006

Pulling Together

Abstract: The importance of collaboration and teamwork between the architecture and engineer for successful building projects are discussed. This proved true when the engineering firm Simpson Gumpertz and Heger (SGH) worked closely Jeff Peterson...

October 30, 2006

Thermal Bridging in the Building Envelope - Maximizing Insulation Effectiveness through Careful Design

Abstract: The primary purpose of thermal insulation is to reduce conductive heat flow through the building envelope, therby lowering heating and cooling costs while minimizing the potential of condensation on or within building conponents....

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

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...