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Filtering by: Committee Member Scott, Michael Remove constraint Committee Member: Scott, Michael Advisor Higgins, Christopher C. Remove constraint Advisor: Higgins, Christopher C. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Behavior of open grid steel bridge decks under service and fatigue loads

Creator:

Fetzer, Peter C.

Abstract:

Open grid steel bridge decks have been in use for nearly a century. These open grid decks provide an economical and lightweight alternative to traditional reinforced concrete decks. As the transportation infrastructure continues to deteriorate, open grid decks can be used as a cost effective way to rehabilitate structurally deficient...

Resource Type:

Masters Thesis

Full Text:

committee members Dr. Michael Scott, Dr. John Gambatese, and Dr. Andrew Meigs. I would also like to thank
Experimental research on the behavior and strength of large-scale steel gusset plates with sway-buckling response including effects of corrosion and retrofit options

Creator:

Hafner, Anthony G.

Abstract:

The collapse of the I-35W Bridge in Minneapolis, MN on August 1, 2007 brought into question the design and inspection of gusset plates in steel truss bridges. The experimental tests performed in this research study the sway-buckling strength and behavior of large-scale steel gusset plates in an isolated truss connection....

Resource Type:

Masters Thesis
Influence of diagonal cracks on negative moment flexural anchorage performance in reinforced concrete bridge girders

Creator:

Goodall, Joshua K.

Abstract:

Large numbers of vintage reinforced concrete deck-girder bridges remain in the national bridge inventory. Many of these exhibit diagonal cracking and other distress. Due to the design practices of the time, it is common to observe cracks at locations where flexural reinforcing steel is terminated along the span. The presence...

Resource Type:

Masters Thesis

Full Text:

members Dr. Tom Miller, Dr. Michael Scott, and Dr. Joe Karchesy. Their input into the thesis writing
Flexural steel anchorage performance at diagonal crack locations

Creator:

Triska, Mary Ann

Abstract:

Large numbers of reinforced concrete deck girder bridges that were constructed during the interstate system expansion of the 1950s have developed diagonal cracking in the stems. Compared to the present AASHTO-LRFD standards, the provisions of the 1950s allowed for higher shear stress in the concrete, thus reducing the amount of...

Resource Type:

Masters Thesis

Full Text:

committee members: Dr. Michael Scott, Dr. Tonatiuh Rodriguez-Nikl, and Dr. Timothy Kennedy. The
Wind induced torsional fatigue behavior of truss bridge verticals

Creator:

Keller, Philipp

Abstract:

The Astoria-Megler Bridge is a 6.6 kilometer (4.1 mile) long bridge, connecting Oregon and Washington on US 101, with a continuous steel truss main span of 376 m (1232 ft). It is the second longest main span bridge of this type in the world. Due to vortex shedding, some of...

Resource Type:

Masters Thesis

Full Text:

, Dr. Thomas Miller, Dr. Michael Scott and Dr. Andrew Meigs, for their thoughtful questions, comments
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

Full Text:

. Thanks also to Dr. Miller and Dr. Scott for their help with the project, and to all the professors I
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
Image rectification tool for evaluation of gusset plate connections in steel truss bridges

Creator:

Nguyen, Quang D.

Abstract:

A methodology was developed to permit rectification and metrification of digital images of steel truss gusset plate connections. The approach will enable rapid and accurate collection of field measurements as compared to traditional methods to enable structural evaluation of gusset plate connections. The program enables the operator to quickly create...

Resource Type:

Masters Thesis
Freeze-thaw durability of reinforced concrete deck girders strengthened for shear with surface-bonded carbon fiber-reinforced polymer

Creator:

Mitchell, Mikal Maxwell

Abstract:

Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) U-wraps for shear strengthening of reinforced concrete (RC) bridge members remains uncertain due to the limited field experience with these materials. This paper provides experimental results from the testing of full-scale RC bridge girder specimens after exposure to prolonged freeze-thaw cycling. CFRP...

Resource Type:

Masters Thesis
Scale effects on reinforced concrete beams strengthened for shear with discrete externally bonded carbon fiber-reinforced polymer U-wraps

Creator:

Dawson, Matthew Ryan

Abstract:

Current ACI design provisions for shear in reinforced concrete (RC) beams strengthened with externally bonded carbon fiber-reinforced polymer (CFRP) U-wraps may not adequately account for the effect of scale. This paper describes tests of 6 geometrically scaled beams to identify possible scale effects of such beams. Results indicated that effective...

Resource Type:

Masters Thesis

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Academic Affiliation

School of Civil and Construction Engineering8
Civil and Construction Engineering3
Civil, Construction, and Environmental Engineering2

Advisor

Higgins, Christopher C.[remove]13

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2008 to 2013

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Committee Member

Scott, Michael H.8
Miller, Thomas H.6
Scott, Michael5
Kennedy, Timothy C.3
Bay, Brian K.2
more Committee Members »

Creator

Dawson, Matthew Ryan1
Fetzer, Peter C.1
Goodall, Joshua K.1
Hafner, Anthony G.1
Howell, Daniel A.1
more Creators »

Date

Date range begin – Date range end

Current results range from 2007 to 2013

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Decade

2010-20195
2000-20098

Degree Field

Civil Engineering13

Degree Level

Master's10
Doctoral3

Degree Name

Master of Science (M.S.)10
Doctor of Philosophy (Ph.D.)3

File Format

application/pdf1

Language

English [eng]13

License

All rights reserved13

Non-Academic Affiliation

Oregon State University. Graduate School[remove]13

Peer Reviewed

No13

Resource Type

Masters Thesis10
Dissertation3

Rights Statement

In Copyright13

Subject

Anchorage (Structural engineering)2
Bridges, Concrete -- Maintenance and repair2
Concrete beams -- Testing2
Iron and steel bridges -- Design and construction2
Shear (Mechanics)2
more Subjects »

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