Experimental investigation on ferritic stainless steel composite slabs

Abstract

Steel-concrete composite structures are well established in the construction of floors and roofing, being interesting solutions as steel decks act as formwork for relatively large spans and support the weight of the concrete and construction loads. However, the use of stainless steel decks in such structures has been very limited, although their mechanical properties, corrosion resistance, aesthetics and emissivity make them excellent for visually exposed composite floor slabs where the thermal capacity of the slab is mobilized as part of an energy saving strategy. This paper presents a comprehensive investigation on composite slabs with trapezoidal ferritic stainless steel decks in order to assess the performance of such structural members. Composite slabs made from EN1.4003 ferritic stainless steel and common C25/30 concrete were tested in two series of span lengths in order to determine the different parameters defining their ultimate longitudinal shear response. Reference tests on slabs with galvanized steel were also conducted with identical geometries and configurations. The m and k parameters used in the m-k method and the design longitudinal shear strength τ u,Rd corresponding to the Partial Connection Method have been determined according to EN 1994-1-1:2004. Finally, the behaviour of these composite slabs was compared with the performance shown by the conducted reference slabs with galvanized steel deck in terms of Ultimate and Serviceability Limit States.

Study on the ductility of open‐rib and re‐entrant composite slabs

“…The friction coefficient in the case of slabs made of stainless-steel profiled sheeting is set to 0.1. This value is consistent with the experimental observations made by [22] and the fact that the roughness of the stainless steel is considerably lower than its galvanized counterpart. The contact of steel and concrete is represented through the contact pairs, which are the TARGE170 [27] and CONTA174 [27] in the AN-SYS element reference.…”

“…Figure 7 to Figure 10 show the experimental force-slip curves for the open-rib and re-entrant slabs. These slip values are then used for analyzing the slip behavior in Section 5.4, therefore including the cycling residual slip is required, as similarly accomplished by [22] for presenting the forceslip relationships.…”

Barrier Verification and Numerical Simulation of Vacuum Coating on Fe-Co-Ni Interlayer of Stainless Steel Clad Plates

“…Stainless steel clad plates have become a hotspot in research and development in ocean engineering, hydropower engineering, and other fields due to the high mechanical strength of carbon steel and corrosion resistance of stainless steel [1][2][3]. When the base and clad layers of the stainless steel clad plate are combined, the elements easily migrate and diffuse due to the large concentration gradient of carbon and chromium on both sides.…”

A New Composite Slab Using Crushed Waste Tires as Fine Aggregate in Self-Compacting Lightweight Aggregate Concrete

“…A composite slab comprised of profile steel sheeting and concrete is a popular form of floor slab utilized in a floor system of steel structure and composite structure [22]. Several advantages of composite slabs have been elaborated in previous studies [23][24][25][26][27], such as the decrease of self-weight, shortening of the construction period, simplification of the construction process, and so on. In this floor system, profiled steel sheeting can be used as a template for concrete pouring construction; meanwhile, it can be also used as a tension bar under loading.…”