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Filtering by: Advisor Higgins, Christopher C. Date 2009

New acoustic emission applications in civil engineering

Creator:

Schumacher, Thomas

Abstract:

Non-destructive testing methods and applications have become of increasing interest due to the worldwide aging and deteriorating infrastructure network. In the field of Civil Engineering, bridges and bridge components as well as non-structural elements such as roadway pavements for example, are affected. In particular, the Acoustic Emission (AE) technique offers...

Resource Type:

Dissertation
Experimental and analytical investigation of ponding load effects on a steel joist roof system

Creator:

Stark, Duncan

Abstract:

Ponding of water on roof systems leading to collapse causes expensive damage and jeopardizes the life safety of building occupants. Current building codes and design specifications for flat roof systems offer minimal guidance in designing for ponding loads. The present research investigated ponding load effects on a long span, lightweight...

Resource Type:

Masters Thesis
Shear repair methods for conventionally reinforced concrete girders and deep beams

Creator:

Howell, Daniel A.

Abstract:

Many conventionally reinforced concrete deck girder bridges (RCDG) and their intermediate supporting bent caps were designed during the Eisenhower interstate era of the 1950’s with the AASHO design equations at the time, which subsequently place higher demand on the concrete. The referenced components may exhibit diagonal cracking due to the...

Resource Type:

Dissertation