Study of stud shear connectors behaviour in composite beams with profiled steel sheeting

Abstract

Study of stud shear connectors behaviour in composite beams with profiled steel sheeting Estudio del comportamiento de conectores tipo perno en vigas compuestas con lámina nervadaJorge Douglas Bonilla Rocha (Main and Correspondent Author) AbstractThis work presents an FE study concerning the prediction of the shear resistance of headed stud connectors in composite beams with profiled steel sheeting subjected to static load. To confirm the FE simulation for the determination of the shear resistance of stud connectors, many experimental push-out tests whose results are available in the literature were used as a database. The FE simulations took into account the influence of many physical and mechanical parameters that affect the shear resistance of the stud connectors and such parameters are reported in the course of this paper. The prediction of the shear resistance of such studs is also calculated from currently used Standards, such as: AISC-LRFD and Eurocode-4. This research proposes new formulations for the prediction of the shear resistance and the results show that the proposed formulations significantly improve the prediction of the shear resistance of headed stud connectors subjected to static load.Keywords: composite structures, shear studs, shear connectors, steel deck slab, composite beam. ResumenEn este trabajo se presenta un estudio realizado aplicando EF para la predicción de la resistencia de conectores tipo perno en vigas compuestas con lámina perfilada bajo carga estática. Para la validación de los resultados de la modelación numérica se han empleado estudios experimentales reportados en la literatura. La simulación con EF toma en cuenta la influencia de varios factores físicos y mecánicos que afectan la resistencia de los conectores, lo cual han sido reportados a lo largo del artículo. Se ha analizado la predicción de la resistencia de los conectores a partir de normativas vigentes, en este caso: AISC-LRFD y Eurocode-4. Los autores de este trabajo proponen nuevas formulaciones para la predicción de la resistencia de los conectores tipo perno, las cueles mejoran la estimación de este valor, en comparación con los valores derivados de las normativas antes mencionadas.

Experimental investigation on ferritic stainless steel composite slabs

“…This research was reported by the authors in Arrayago et al [18], and it was concluded that in general expressions in [16,17] are applicable to ferritic stainless steel decks, although some modified expressions can be used if higher accuracy is required in the design. Figure 1 Trapezoidal steel deck in composite floor slab [19] The behaviour of composite floor slab systems has been systematically investigated during the last decades through different experimental and numerical studies [20][21][22][23][24][25][26][27], and the fire performance of such structures has also been carefully characterized [28][29][30]. In addition to the punching shear failure, the failure of composite slabs is governed by three major failure modes, as shown in Figure 2, which are bending (for considerably high shear spans L s ), vertical shear (for low shear spans) and longitudinal shear (for intermediate values of L s ), related to the relative slip between the steel deck and the concrete at supports, where the shear span L s is the distance from the point of application of concentrated force to its respective reaction force.…”

An experimental study on the performance of precast ferrocement panel for composite masonry slab systems

“…The majority of experimental studies are on precast structural elements precast beam-column joints without transverse beams and slabs (Bonilla, Bezerra, Larrúa Quevedo, Recarey Morfa, & Mirambell Arrizabalaga, 2015;Saleem, Khurram, Amin, & Khan, 2018;Ma, Jiang, & Wang, 2019). However, seismic performance and mode of failures of precast beamcolumn and precast beam-slab are directly affected by existance of the transverse beams and slabs (Parastesh, Hajirasouliha, & Ramezani, 2014;Chen, Yan, & Gao, 2012;Choi, Choi, & Choi, 2013;Yuksel et al, 2015;Köken & Köroglu, 2014;Yardim, 2018).…”