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Local phenomena around a steel dowel embedded in a stone masonry wall

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Abstract

The study of the local behaviour of steel dowels used to transfer horizontal shear loads between concrete slabs and stone masonry walls has been carried out. Monotonic loading tests have been performed on six specimens of stone masonry made in the laboratory concerning three different embedding techniques for dowels. The geometric interferometry technique was adopted to survey the surface displacements, in the load direction, of the loaded stone block and surrounding mortar joints. For applying the shear load to the connection, a special experimental apparatus has been designed so as to allow the arrangement of moiré gratings as well as to capture the sequence of the fringe pattern.

Résumé

On présente une étude du comportement local des goujons en acier utilisés pour transférer les charges horizontales de cisaillement entre une dalle en béton armé et un mur en pierre. Des essais permettant d'augmenter la charge de façon monotone ont été réalisés sur six échantillons de mur en pierre fabriqués en laboratoire; trois techniques différentes d'ancrage des goujons ont été étudiées. La technique d'interférométrie géométrique a été employée pour étudier les déplacements en surface, dans la direction de la charge, du bloc de pierre chargée et des joints de mortier l'entourant. Afin d'appliquer une charge horizontale à la connexion, un appareil expérimental spécial a été réalisé pour permettre le positionnement d'une grille moiré et de saisir la séquence des franges.

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Abbreviations

s :

slip of the load device with respect to the undisturbed masonry wall

͗d :

displacement of the steel dowel on the surface of the wall with respect to the undisturbed masonry wall

͗s :

displacement of the loaded stone block with respect to the undisturbed masonry wall

F :

shear load

ϕ:

steel rod diameter

l 1,l 2 :

lever arms of load machine

e, b :

geometrical parameters of the load device

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Authors and Affiliations

  1. Dipartimento di Ingegneria Civile, Universita' degli Studi di Udine, via Delle Scienze, 208, 33100, Udine, Italy

    R. Felicetti & N. Gattesco

  2. Dipartimento di Ingegneria Civile, Universita' degli Studi di Brescia, via Branze, 38, 25123, Brescia, Italy

    E. Giuriani

Authors
  1. R. Felicetti
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  2. N. Gattesco
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  3. E. Giuriani
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Felicetti, R., Gattesco, N. & Giuriani, E. Local phenomena around a steel dowel embedded in a stone masonry wall. Mat. Struct. 30, 238–246 (1997). https://doi.org/10.1007/BF02486182

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  • DOI: https://doi.org/10.1007/BF02486182

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