Additional Method of Shear Resistances in Precast Concrete Connections

Nakano, Katsuhiko; Matsuzaki, Yasuhiro

doi:10.3130/aijs.66.151_5

Cited by 13 publications

(1 citation statement)

References 3 publications

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“…A typical feature of interfaces subjected to cyclically imposed shear displacements 14,[20][21][22][23][24] is the asymmetry of the hysteresis loops. Actually, the mobilized shear resistance in the second loading direction (for the same shear slip amplitude) is typically smaller than that mobilized in the first loading direction.…”

Section: Interface Roughnessmentioning

confidence: 99%

Experimental cyclic behavior of concrete interfaces with postinstalled reinforcing bars or alternative connectors

Palieraki

Oikonomopoulou

Genesio

et al. 2023

Structural Concrete

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In this experimental campaign, concrete‐to‐concrete interfaces were examined under cyclic actions, crossed by postinstalled reinforcing bars or industrial steel screws. In addition, the effect of the embedment length and the roughness was investigated. It was observed that different failure modes occur, depending on the different connector types and embedment depths. The positive effect of roughness on the interface resistance was confirmed, but the results indicate that, for very high roughness values, the resistance may be smaller than for moderate values. It was also noticed that the behavior of interfaces crossed by mechanical anchors was less stiff in the ascending branch and exhibited a less steep falling branch. The extension of the project on testing thin overlays showed that the resistance was significantly affected in case of cyclic loading, suggesting that the use of any type of anchor in seismic conditions needs to be supported by adequate experimental evidence.

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