Exemplos de uso de Shear connectors em Inglês e suas traduções para o Português
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Determination of required shear connectors and their distribution.
Channel shear connectors equal to the composite truss previously tested, with a length of 80 mm were used.
Determination of required shear connectors and their distribution.
The shear connectors are the device joining the steel beam and concrete slab, allowing the transfer of shear along the structure.
Two welding procedures for the junction between the shear connectors and steel tube are also analyzed: spot and effective welding.
The mechanism of transfer of longitudinal shear stresses on the interface between the beam andthe slab usually occurs by means of shear connectors.
The same number of shear connectors was adopted to the cellular composite beams.
Alternatively, a simple solution is to reduce the span of the slab introducing reinforced concrete beams with the aid of shear connectors in the slab-beam interface.
However, there is little information on shear connectors with pin-type head associated with hollowcore slab concrete.
Precast slabs shall be reinforced in 2 orthogonal directions andconnected with the supporting beams and each other with shear connectors, so that the whole forms a continuous diaphragm.
Internal forces for the design of shear connectors can only be determined by the elastic calculation of internal forces using the RSTAB analysis core no RSTAB license is required.
It was verified that the maximum load caused the yielding of the metal profile flange andof the reinforcing bars, and that shear connectors were not effective in improving the flexural strength.
The shear connectors play a fundamental role, causing the different materials, in the case of this research the steel and the concrete, to respond together, and therefore also determine the quality of this conjunct behavior.
This work presents the development of a numerical model capable of simulating the behavior of steel-concrete connection with crestbond shear connectors using the finite element method.
The wood beams receive metal shear connectors to support the bending developed by the concrete during the transit of cargo loads Astori et al. 2006; Soriano and Mascia, 1999.
Ricles and Paboojian[] show the experimental results of eight composite columns fully encased with concrete,with cross-section dimensions equal to 406mmx406mm and shear connectors.
In the latest years,several studies about shear connectors in perforated flat steel plates have been conducted in order to assess its application in composite structures of steel and concrete, including experimental and numerical approaches.
The tests carried out showed that the concrete strain inthe most compressed fiber ranged from 0.0025 to 0.004 before the models collapsed. The presence of shear connectors had little influence on the ultimate capacity of the composite column.
Over the past years several shear connectors in continuous plates have been studied, especially those in which the resistant mechanism is based on the dowel effect double shear of the concrete that fills the connector's openings.
The brazilian standard¿design of steel and composite structures for buildings using hollow sections¿-abnt nbr 16239:2013 proposes the use of screws orstud bolts as shear connectors in composite columns.
Starting with the selection of a suitable steel decking and shear connectors from the integrated catalogues of common manufacturers, continuing with exact modelling and precise determination of stiffness, the engineers can design and check cantilevers and simple as well as continuous beams.
The recent published standard titled¿design of steel and composite structures for buildings using hollow sections¿(brazilian standard abnt nbr 16239:2013)recommends the application of bolts as shear connectors in concrete-filled composite tube columns.
Composite structures present great advantages in regards to structural behavior andthe building process, and the shear connectors are the key to achieving interaction between the materials(steel and concrete) and distributing stresses throughout the structure, effectively increasing the potentiality of each material of the composite structure.
In cases where they are, the use of shearing connectors becomes necessary.
The influence of the use of shearing connectors in composite columns is greatly undervaluedin the majority of scientific papers, with its use recommended only in situations of high vibration.
This work, through experimental and numerical analyses,presents the development of a shear connector(lattice connector) proposed for use in steel-concrete composite beams.
In this work a shear connector built from a ca-50 type rebar bent in a lattice or saw tooth form and welded to the steel profile is presented for the first time.