Abstract
Abstract The paper estimated the effect of the distribution of edge and shear stresses occurring in the façade texture layer of three-layer walls of large slab panel buildings, as well as the variability of these stresses depending on the anchorage strength of the anchorage. Bonded anchors with seven different diameters M8 ÷ M30, selected based on catalogues, were analysed. The traction stress was determined based on the destructive force, which is determined by the catalogues of manufacturers of bonded anchors. Depending on the choice of the method of repairing the connections between the textured layer and the structural layer, we give the three-layer walls a new character of work. One of the methods of strengthening the textured layer is the popular COPY-ECO system in Poland. It is a system of two anchors (horizontal and diagonal), reflecting the shape of the work of existing hangers. The article also analyses the variants of oblique anchorages for the M12 anchor with inclination angles of 30∘, 45∘ and 60∘. The extent to which the anchorage inclination angle has been assessed influences the higher parameters of the anchor’s bearing capacity due to the shearing of the textured layer.
Highlights
The paper estimated the effect of the distribution of edge and shear stresses occurring in the façade texture layer of three-layer walls of large slab panel buildings, as well as the variability of these stresses depending on the anchorage strength of the anchorage
In addition to the obvious factors affecting the durability of the façade textured anchor, i.e. anchor diameter, anchor depth and resin strength parameters, the decisive mechanisms supporting the durability of joints are: panel dimensions, distance between anchors, steel anchor diameters and epoxy resin adhesion stress
The article confirmed the fact that the selection of the diameter of anchors bonded, regardless of the resin parameters and the concrete base concrete class together with the increase of the anchor diameter and at the same time the effective anchorage depth hef influences the increase of adhesion stress τpsr
Summary
Abstract: The paper estimated the effect of the distribution of edge and shear stresses occurring in the façade texture layer of three-layer walls of large slab panel buildings, as well as the variability of these stresses depending on the anchorage strength of the anchorage. This work is licensed under the Creative Commons Attribubased on European ETAG Guidelines [11], Technical Report EOTA TR 023 [11] and British Guidelines [13,14,15] The authors of this manuscript, in addition to the obvious and most important from the point of durability, anchorage depth [7], focused on the transmission of stress through the bonded anchor in the internal structural layer to the external textured layer in the walls of threelayer large slab panel buildings, constituting apartments for about 12 million people in Poland. This article describes the theoretical estimation of stresses occurring during operation of new adhesive anchors
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