December 30, 2004

Condition Assessment of Utah Highway Culverts and Determination of Culvert Performance Measures

By: Jesse Beaver, McGrath, Timothy J., Leonard B.

Abstract: The Utah Department of Transportation installed and manages over 47,000 culverts but has no comprehensive, quantitative method for evaluating the performance of these culverts. UDOT initiated a study to assess culverts throughout the...

Services:Structural Investigation
Markets:Highway & Tunnel
Keywords:Concrete, Culverts and Storm Drains, Field Testing, Metal, Performance-based, Plastic/Composite
December 30, 2004

Condition Assessment of Highway Culverts and Determination of Performance Measures

By: McGrath, Timothy J., Jesse Beaver

Abstract: The Utah Department of Transportation installed and manages over 47,000 culverts but has no comprehensive, quantitative method for evaluating the performance of these culverts. UDOT initiated a study to assess culverts throughout the...

Services:Structural Investigation
Markets:Highway & Tunnel
Keywords:Concrete, Culverts and Storm Drains, Metal, Performance-based, Plastic/Composite
December 30, 2004

The scaled nonlinear dynamic procedure

By: Ronald Hamburger, Aschheim, Mark, Tjhin, Tjen, Comartin, Craig, Inel, Mehmet

Abstract: A preliminary version of a new seismic analysis procedure is presented. The Scaled Nonlinear Dynamic Procedure (NDP) overcomes inaccuracies associated with other methods of analysis and can readily be used in conjunction with the...

Services:Structural Design
Keywords:Codes & Standards, Nonlinear, Seismic Analyses
December 30, 2004

Facade Ordinances and Historic Structures - Theoretical and Practical Conservation Issues in Inspection and Repair

By: CeCe Louie, Kecia L. Fong

The primary concern of building facade inspection ordinances is to insure the safety of the public and surrounding property and to establish baseline cycles of inspection, maintenance and repair. While public safety is paramount, what these...

Services:Building Enclosure Rehabilitation, Structural Rehabilitation
Keywords:Codes & Standards, Facade Ordinance, Historic, Inspection, Ordinance, Preservation Technology
November 29, 2004

Evaluation and Rehabilitation of Older, Circular Prestressed Concrete Tanks

By: Michael Brainerd, Sagan, Vincent E.

Abstract: The identification and rehabilitation of circular prestressed concrete tanks to increase their service lives by implementing tested standards such as ANSI/AWWA D110 and ACI 372 is discussed. A prestressed concrete tank is mainly a...

Services:Structural Rehabilitation
Markets:Water/Wastewater
Keywords:Codes & Standards, Concrete, Concrete-Prestressed, Corrosion, Cracking, Deterioration, Freeze-Thaw, Tank
November 29, 2004

Building Science Helps to Improve Design

By: Sean OBrien

Abstract: Modern buildings are complicated assemblies complicated assemblies composed of multiple layers of lightweight materials. Consequently, these buildings behave very differently than the solid load-bearing masonry buildings of the past.|...

Services:Building Enclosure Design
Keywords:Building Science, Curtain Wall, Energy (Energy Modeling, Energy Audits, Energy Commissioning), Thermal and Moisture Drive
October 30, 2004

Water Vapor Transmission Through Brick Masonry Wall Systems

By: Peter Nelson, Sean OBrien

Abstract: Heat and moisture flow dynamics through masonry walls can vary greatly depending on wall construction and local climate. Recent concerns over mold and moisture damage to building envelopes have created a renewed need for designers to...

Services:Building Enclosure Investigation
Keywords:Building Science, Energy (Energy Modeling, Energy Audits, Energy Commissioning), Masonry, Masonry-Brick, Thermal and Moisture Drive, Walls
August 30, 2004

Relevance of Structural Engineers to Sustainable Design of Buildings

By: Mark Webster

Abstract: Examination of building life cycle environmental impacts shows that the structural system can be a major contributor to overall environmental impacts. Although the structural impacts for most buildings in the United States and Canada...

Services:Structural Design
Keywords:Green / Sustainable Design
August 30, 2004

Controlling Concrete Cracking and Curling

By: Matthew Sherman, Paul Kelley, Bae Jewan

Abstract: Drying shrinkage is a trait of concrete that, if poorly controlled or managed, can lead to serviceability problems, reduced durability, and even system failures. Cracks from restraint of shrinkage can reduce the performance life of...

Services:Materials Design
Keywords:Concrete, Concrete Mix Design, Cracking, Slab
August 30, 2004

Comparative Performance of Buckling-Restrained Braces and Moment Frames

By: Ronald Mayes, Craig Goings, Naguib, Wassim I., Stephen Harris, Lovejoy, Jennifer, Fanucci, Jerome P., Bystricky, Pavel, Hayes, John R.

Abstract: This paper will provide a comparison of the maximum inter-story drifts and floor response spectra for 3 and 9 story buildings using both steel and aluminum BRBs designed with an R-factor of 7. The buildings had the same dimensions as...

Services:Structural Design
Keywords:Frame, Special Moment, Seismic Analyses

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