|
|
|
Title: Flexural Behavior at Service and Ultimate Limit State of One-Way Concrete Slabs Reinforced with Corrosion-Resistant Reinforcing Bars
Accession Number: 01473457
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The paper presents the results of an experimental investigation of the structural performance and susceptibility to deformation of a concrete bridge deck with corrosion-resistant reinforcing (CRR) bars (i.e., bars that exhibit better corrosion resistance than traditional black steel when embedded in concrete). Flexural tests of one-way slabs were conducted to simulate negative transverse flexure over a bridge girder as assumed in the commonly used strip design method. Grade 60 (uncoated), epoxy-coated reinforcing Grade 60, Enduramet 32 stainless steel, 2304 stainless steel, MMFX2, and glass fiber–reinforced polymer bars were studied. The experimental program was designed to evaluate how flexural performance at service and ultimate limit states are affected by a one-to-one replacement of Grade 60 with CRR bars, a reduction of concrete top clear cover, and a reduction in rebar quantities in the top mat of the bridge deck. Moment–curvature predictions from Response 2000, a computer-based sectional analysis program, were consistent with the test results. This consistency demonstrated the viability of Response 2000 for use with high-strength and nonmetallic rebar without a defined yield plateau. The susceptibility of the specimens of concrete slab strips to deformation was defined with ultimate- to service-level ratios of midspan deflection and curvature. The susceptibility to deformation of the specimens of MMFX2 and Enduramet 32 stainless steel (one-to-one replacement) was consistent with the Grade 60 controls; this consistent response demonstrated that bridge deck slabs with high-strength rebar without a defined yield plateau still can provide sufficient ductility at an ultimate limit state. A reduction in rebar quantity and cover provided acceptable levels of ductility for the specimens of 2304 stainless steel and MMFX2-reinforced slabs.
Monograph Title: Monograph Accession #: 01490596
Report/Paper Numbers: 13-3314
Language: English
Authors: Bowen, GaloZheng, PaulMoen, Cristopher DSharp, Stephen RPagination: pp 47–58
Publication Date: 2013
ISBN: 9780309263337
Media Type: Print
Features: Figures
(8)
; References
(12)
; Tables
(4)
TRT Terms: Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls
Files: TRIS, TRB, ATRI
Created Date: Feb 5 2013 12:40PM
More Articles from this Serial Issue:
|
