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In order to investigate in-plane seismic behavior of confined walls constructed from a single wythe of masonry units and the performance of concrete tie-beams and tie-columns, a series of experimental tests has been carried out in the BHRC laboratory. This in-cludes four full-scale wall specimens in which some sort of connections have been provided...
Context in source publication
Context 1
... addition to the common characteristics listed above, the other properties of the specimens are given as follows: First specimen: A masonry shear wall made of perforated clay bricks without finishes. The thickness of the masonry wall is taken as 10 cm and its height as 125 cm. Furthermore, as a connection between masonry wall and the lower tie-beam, 8 mm vertical reinforcing bars at spaces of 625 mm have been used. No further connections with tie- columns or upper tie-beam have been made. Second specimen: A masonry shear wall made of perforated clay bricks without finishes. The thickness of the masonry wall is taken as 20 cm and its height as 240 cm. Furthermore, as a connection between masonry wall and the lower tie-beam, 8 mm vertical reinforcing bars at spaces of 625 mm have been used. Tie-columns are cast against the rough (toothed) surfaces of the masonry walls and the dowels used to connect walls with tie- columns are 8@750 mm. Third specimen: Same as the second specimen with special details at the column-beam intersection zone; the spacing of lateral reinforcements is made closer and horizontal tie bars have been used to confine this region, as shown in Figure 4. Fourth specimen: This specimen has been constructed similar to a frame; i.e. the concrete beams and columns are constructed before the wall. Furthermore, it has the same ...
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Citations
... In this document, the author has tried to draw from existing construction guidelines to create a more universal guideline that will include recommendations for site selection, wall layout and configuration, materials, workmanship, foundation placement, masonry construction, concrete placement, floor and roof construction, and quality control. [4] conducted experimental tests to study the seismic behavior of confined walls made of a single wythe of masonry units, using clay and concrete tie beams and tie columns in The BHRC laboratory. In the literature, significant cracks in masonry walls are typically associated with the end of the elastic range and a change in initial stiffness. ...
