Index Catalog // ScholarsArchive@OSU

Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Creator:: Vavra, Eric
Abstract:: Structurally efficient and cost-effective solutions are needed to extend the service-life of deficient and aging highway infrastructure around the world. One critical need is to increase the flexural strength of older reinforced concrete (RC) structures to carry heavier and more frequent loads. Titanium alloy bars (TiAB) offer a new opportunity...
Resource Type:: Masters Thesis

Shear strengthening reinforced concrete bridge girders using near-surface mounted titanium alloy bars

Creator:: Knudtsen, Jonathan
Abstract:: Aging and deficient infrastructure has become a major problem throughout the world. This is particularly evident in the case of reinforced concrete (RC) bridges. The cost of replacing these bridges is often prohibitive, thus engineers must find ways to strengthen them. Many older RC bridges predate the modern understanding of...
Resource Type:: Masters Thesis

Shear capacity assessment of corrosion-damaged reinforced concrete beams

Creator:: Farrow, William C.
Abstract:: The research presented here is a study to determine the effect of shear reinforcement corrosion on the shear capacity in conventionally reinforced concrete (CRC) bridge elements. A total of 14 CRC beams were tested using three stirrup spacings (8, 10, and 12-inch). Six of the beams included the influence of...
Resource Type:: Masters Thesis
Full Text:: Newell and Tanarat Potisuk. To Lani Evans and Melissa Robello. The following personnel from the Albany

Analysis of conventionally reinforced concrete deck girder bridges for shear

Creator:: Potisuk, Tanarat
Abstract:: Large numbers of 1950's vintage conventionally reinforced concrete (CRC) bridges remain in-service in the national bridge inventory. Many of these bridges are lightly reinforced for shear. Evaluation of these bridges to prevent unnecessary and costly repairs requires refined analytical techniques. This dissertation presents finite element (FE) modeling and comparisons of...
Resource Type:: Dissertation
Full Text:: than top bars - All deformed compression bars Reinforcement: 'ear (edition) 1941(3) J 1944(4m) I

Analysis of diagonally cracked conventionally reinforced concrete girders in the service load range

Creator:: Robelo, Melissa J.
Abstract:: Performance evaluation of conventionally reinforced concrete (CRC) bridge superstructure elements with diagonal cracks is of interest to the bridge engineering community. Standardized methods to predict service-level stress magnitudes in cracked bridge girders under combined bending and shear forces are not available. An analysis procedure was developed to determine the response...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Melissa J. Robelo for the degree

Investigation of the fatigue behavior of diagonally-cracked CRC deck-girders repaired with CFRP

Creator:: Williams, Grahme T.
Abstract:: Fiber reinforced polymers (FRP) are becoming more widely used for repair and strengthening of conventionally reinforced concrete (CRC) bridge members. Once installed, the repair may be exposed to millions of load cycles during service life. The anticipated life of FRP repairs for shear strengthening of bridge members under repeated service...
Resource Type:: Masters Thesis
Full Text:: .-::.. ~ "'1.tr-. "'1.-::.. ·::J.-~ . .-~1:.-::r-. -:F-~ :,i:,;:,:;,;i,;,;"-----3658----,----3658------;z;,;r

An investigation of Oregon weight-in-motion data for bridge rating implementation and evaluation

Creator:: Pelphrey, Jordan Michael
Abstract:: The LRFR Manual, within commentary Article C6.4.4.2.3, contains provisions for development of site-specific live load factors. In Oregon, truck Weigh-in-Motion (WIM) data were used to develop live load factors for use on state-owned bridges. The factors were calibrated using the same statistical methods that were used in the original development...
Resource Type:: Masters Thesis
Full Text:: for legal loads as: or for permit loads as: R1 = W + tADTT3S2 [3a] RT = J) + tADTT along [3b

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:: .......................................................................................... 137 Appendix J: Specimen IT.60.Ld2

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

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:: , M. C., Main, I. G., and Halliday, J. (2003a). "AE monitoring of concrete bridge beams in situ

ScholarsArchive@OSU

Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Shear strengthening reinforced concrete bridge girders using near-surface mounted titanium alloy bars

Shear capacity assessment of corrosion-damaged reinforced concrete beams

Analysis of conventionally reinforced concrete deck girder bridges for shear

Analysis of diagonally cracked conventionally reinforced concrete girders in the service load range

Investigation of the fatigue behavior of diagonally-cracked CRC deck-girders repaired with CFRP

An investigation of Oregon weight-in-motion data for bridge rating implementation and evaluation

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

Flexural steel anchorage performance at diagonal crack locations

New acoustic emission applications in civil engineering

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