Experimental and numerical study of plastered stone masonry subjected to in-plane shear and compression

  1. MSc thesis
  2. ΔΙΟΝΥΣΙΑ ΜΙΧΑΛΟΓΙΑΝΝΗ
  3. Σεισμική Μηχανική και Αντισεισμικές Κατασκευές (ΣΜΑ)
  4. 2018 [2018]
  5. Αγγλικά
  6. Unreinforced stone masonry, quasi-static tests, plaster, 3D numerical model
    • In this study two plastered stone masonry walls are studied. The wall units, were constructed of sandstone and hydraulic lime mortar and they were covered with plaster from one side. Consequently they were tested in shear and compression tests. In the first chapter the test set-up is explained and the results are presented. The main aim of this work is to study the behaviour of the plaster and its interaction with the underlying masonry. Thus, a comparison between the structural cracks and the cracks on the plaster was done. Consequently material tests were conducted to each component of the wall and the results are presented in the second chapter. A development and a validation of a 3D numerical model was done by means of the commercial software Abaqus and the results are presented in the third chapter. The material parameters obtained from the tests served for the calibration of the model. The validation of the model was done, firstly for the monotonic curve, by comparing the force vs. displacement curves and the failure modes with the experimental ones. The finite element model was created also for the cyclic test and the results are presented. However, the behaviour of the wall subjected to the monotonic test is captured rather well from the numerical model for the cyclic test some difficulties were encountered and some improvements are proposed.
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