Index Catalog // ScholarsArchive@OSU

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:: or deform bars: - Top bars - Straight or hooked ends a E 0 C 0.33f'c 0.33f'c 0.33ft 0.40fc 0.4Ofc

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:: : _____________________________________________________________________ Christopher C. Higgins Article 1: Behavior of Epoxy Injected Diagonally Cracked

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:: with CFRP. Abstract approved: f I ch&rt>pher C. Higgins Fiber reinforced polymers (FRP) are

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:: C. Higgins Non-destructive testing methods and applications have become of increasing interest

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:: AN ABSTRACT OF THE THESIS OF Carl C. Koester for the degree

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
Full Text:: : Christopher C. Higgins Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) U

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:: Oregon Weigh-In-Motion Data for Bridge Rating Implementation and Evaluation. Abstract approved: C

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:: with Surface-Bonded Carbon Fiber-Reinforced Polymer. Abstract approved: Christopher C

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
Full Text:: : Christopher C. Higgins Current ACI design provisions for shear in reinforced concrete (RC) beams

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
Full Text:: . Abstract approved: _________________________________________________________ Christopher C. Higgins

ScholarsArchive@OSU

Analysis of conventionally reinforced concrete deck girder bridges for shear

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

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

New acoustic emission applications in civil engineering

Testing and evaluation of flexural reinforcing bars terminating in columns

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

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

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

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

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

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