Index Catalog // ScholarsArchive@OSU

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

Full-Scale Experimental Investigation of the Seismic Capacity of Reinforced Concrete Column-Footing Specimens Retrofitted with Titanium Alloy Bars Considering Effects of Soil-Structure Interaction on Vintage and Retrofitted Column-Footing Specimens

Creator:: McGinn, Logan
Abstract:: Reinforced concrete (RC) column-footing substructures are widely used to support bridges along critical transportation corridors in Oregon. Those built prior to 1971 were typically designed to resist only gravity loads. Therefore, they are vulnerable to damage or collapse during strong ground shaking. To prevent collapse, seismic retrofits have been developed...
Resource Type:: Masters Thesis
Full Text:: ................................................................................................................ 220 Appendix B – Sensor Naming Conventions and Placement

Testing and evaluation of flexural reinforcing bars terminating in columns

Creator:: Koester, Carl C.
Abstract:: Capacity of transverse 1950's vintage reinforced concrete deck girder bridge bent caps with large straight bar anchorages were investigated and evaluated. Eleven subassemblage column specimens were examined with different anchorage lengths, bar groupings, amount of transverse steel, and externally applied axial force. Test results showed an increase in anchorage capacity...
Resource Type:: Masters Thesis
Full Text:: section. The actual bond stress (MacGregor and Wright 2005) may be calculated as: s b x df d 4d µ

Environmental durability of reinforced concrete deck girders strengthened with surface-bonded carbon fiber-reinforced polymer

Creator:: Sopal, Gautam Jayant
Abstract:: Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) 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 environmental exposure and combined...
Resource Type:: Masters Thesis
Full Text:: measured using a Class B extensometer with a 25 mm (1 in.) gage length. Direct pull-off tension tests

Investigation of the behavior of diagonally cracked full-scale CRC deck-girders injected with epoxy resin and subjected to axial tension

Creator:: Smith, Matthew T. (Matthew Todd)
Abstract:: Article 1: Behavior of Epoxy Injected Diagonally Cracked Full-Scale CRC Deck-Girders. Many cast-in place reinforced concrete deck-girder bridges (RCDG) remain in the national inventory and exhibit diagonal cracking. Epoxy injection has been in use for several decades as a method for sealing diagonal cracks, but the effects on girder behavior...
Resource Type:: Masters Thesis
Full Text:: . K., Nicholas, B. S., Robelo, M. J., Lee, A-Y., and Forrest, R. W., “Research Project SPR 350 SR

Non-destructive determination of yield stress for in-situ gusset plates

Creator:: Pflaum, Therese Michelle
Abstract:: Failure of a gusset plate that caused the I-35W Bridge collapse in Minneapolis, MN resulted in mandated rating of connections by the Federal Highway Administration (FHWA). Rating connections requires material properties as an input. The material properties are generally reported on the available detailed drawings for bridges. However, some bridges...
Resource Type:: Masters Thesis
Full Text:: him. Also, I would like to thank Dr. Andre Barbosa, Dr. Burkan Isgor, and Dr. John Sessions for

Experimental and analytical evaluation of conventionally reinforced deck-girder bridge bent caps with vintage details

Creator:: Senturk, Ahmet Ekin
Abstract:: Many conventionally reinforced concrete deck girder (RCDG) bridges were built in the US during the 1950s, throughout the expansion of the Interstate System. Designs followed the AASHO standard of the time, which permitted higher shear stress in concrete and reduced detailing requirements than permitted by current specifications. Many of these...
Resource Type:: Dissertation
Full Text:: . John Gambatese, Dr. Timothy Kennedy, and Dr. Michael Scott. Conducting large scale experiments

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
Full Text:: prediction method called b-value analysis (2). It was found that this analysis method may assist in

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:: employers for assistance with this project. Thanks to Mr. John Ashbaugh of Steven Schaefer Associates, Mr

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
Full Text:: . ................................................................................. 23 Fig. 2-11: Plate stresses at 0.6Fmax, (a) Normalized shear stress across path A-A, (b

ScholarsArchive@OSU

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

Full-Scale Experimental Investigation of the Seismic Capacity of Reinforced Concrete Column-Footing Specimens Retrofitted with Titanium Alloy Bars Considering Effects of Soil-Structure Interaction on Vintage and Retrofitted Column-Footing Specimens

Testing and evaluation of flexural reinforcing bars terminating in columns

Environmental durability of reinforced concrete deck girders strengthened with surface-bonded carbon fiber-reinforced polymer

Investigation of the behavior of diagonally cracked full-scale CRC deck-girders injected with epoxy resin and subjected to axial tension

Non-destructive determination of yield stress for in-situ gusset plates

Experimental and analytical evaluation of conventionally reinforced deck-girder bridge bent caps with vintage details

New acoustic emission applications in civil engineering

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

Experimental research on the behavior and strength of large-scale steel gusset plates with sway-buckling response including effects of corrosion and retrofit options

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