AbstractThe article presents concept of II generation N type RHS plug & play truss connection made in non-welded technology. Three connections of the representative truss are analyzed. Resistance calculations of these truss joints, using the component method, are shown. Test results and the theoretical resistance of these connections are compared.
Research on resistance of truss N shape RHS joints is presented. Experimental evidence of such joint behaviour tested in natural scale is described. Geometry and material properties of the tested six connections are given. For each specimen axial-deflection curves are presented. The comparison between numerical models by ANSYS software and experimental results is shown. Finally, some important conclusions are given.
Abstract. The goal of the article is to elaboration analytical models describing a new system of reinforcing three-layer walls of large-panel buildings with bonded anchors. The use of this type of fasteners that bond the façade texture layer to the structural slab is necessary due to the low durability of previously used suspension elements. Various bonded anchorage systems were considered. The new anchorage systems were designed as two-anchors systems (horizontal anchor and diagonal anchors) and three-anchors systems (horizontal anchor and two diagonal anchors). The inclinations of these anchors are in the range of 30˚-60˚ in relation to the surface of the element. For the above types of reinforcements, analytical models have been developed that take into account the change of strength parameters of the resin and steel from which the anchors were made, the interaction of materials resin-steel and resin-concrete and the effect of the simultaneous action of pull-out and shearing forces. Moreover, was assumed the simultaneous destruction of fasteners two-and three-anchors. The elaborated analytical models will be used to determine the load-bearing capacity of the new connector system, which will allow the elaboration of guidelines for strengthening three-layer walls of largepanel slab buildings.
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