Abstract
In order to research the effect of epoxy resin thickness on the shear capacity of the epoxy resin joints of precast concrete segmental bridges, segmental bridges, one group of 6 full-depth single shear key specimens were cast and tested. Based on the experimental results, ultimate shear loads were recorded, cracking patterns and failure modes were observed. The normalized shear stress-vertical relative slip curves were investigated, and some design formulas for assessing the shear capacity of epoxy resin joints were compared and analysed. It is found that the thicker the epoxy resin thickness with the single keys is, the higher the shear capacity of epoxy resin joints is, the larger the normalized shear stress is, and the better plastic deformation capacity of epoxy resin joints is. BUYUKOZTURK O formula overestimates the shear capacity of epoxy resin joints with single keys, and several other design formulas underestimate shear capacity of epoxy resin joints with single keys; it is not appropriate to ignore the effect of epoxy resin thickness on the shear capacity of the epoxy resin joints.
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