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- W72684192 abstract "Although it is commonly known that bridge deck slabs have inherent enhanced strength due to the presence of arching or compressive membrane action, only recently has there been some acceptance of a rational treatment of this phenomenon for design and assessment purposes. To show the benefits of arching action, this paper presents the results of tests carried out on a reinforced-concrete beam and slab bridge in Northern Ireland that incorporated novel reinforcement type and position. The research was aimed at extending previous laboratory tests on 1/3-scale bridge deck edge panels. The measured crack widths and deflections were compared with the current code requirements. The full-scale bridge tests corroborated existing findings from scale model tests. The deflections in the tests panels, under a service wheel load of 25.3 kips (112.5kN), were independent of the amount of tensile reinforcement in the test panel. All of the test panels were uncracked under this service wheel load and all the test panels had much narrower crack widths than those predicted using current standards. The deck slabs with center reinforcement had strengths far in excess of the design ultimate loads and behaved in a similar manner to those with top and bottom reinforcement up to an applied load of 51 kips (225kN). This finding indicates that substantial economies in the amount of reinforcement could be made. By using the benefits of arching action on the strength of laterally restrained slabs, very low percentages of reinforcement are possible, which should decrease the likelihood of deterioration due to reinforcement corrosion." @default.
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- W72684192 date "2007-01-01" @default.
- W72684192 modified "2023-09-25" @default.
- W72684192 title "Serviceability of Bridge Deck Slabs with Arching Action" @default.
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- W72684192 doi "https://doi.org/10.14359/18431" @default.
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