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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:: stress in comparison to ACI 318-05 predicted bar stress............. 58 R40. Ratio of fs experimental

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:: .................................................... 184 LIST OF TABLES Table Page Table 1: Number of flexural tension bars and

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:: ) ................................................................................................... 184 F.3 Vecchio 1992-A compression softening model (Vecchio and Wong, 2002) ........ 185 F.4

Creator:: Barker, Laura
Abstract:: Large numbers of reinforced concrete deck girder (RCDG) bridges were built during the highway infrastructure boom of the 1950's. The advent of standardized deformed steel reinforcing bars during this time allowed for straight bar terminations in flexural tension regions. Designers of the time terminated reinforcing bars where they were no...
Resource Type:: Masters Thesis
Full Text:: – DESIGN MOMENT CAPACITY CALCULATIONS .......................... 184 APPENDIX D – ANALYSIS OF R2K

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:: )…………………………………………………………………………....184 Figure 7.23: Comparison of the simulated drift-lateral load backbone curves representative of

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

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