Design of X-shaped double split tee joints accounting for moment–shear interaction

Latour, Massimo; Rizzano, Gianvittorio

doi:10.1016/j.jcsr.2014.10.015

Cited by 34 publications

(9 citation statements)

References 20 publications

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“…The connections consist of plates especially designed to yield under loading and dissipate the seismic energy. Some examples include: the PI damper connection (Koetaka et al, 2005), the slit damper connection (Chan and Albermani, 2008;Oh et al, 2009;Saffari et al, 2013), double split tee (DST) connections (Herrera et al, 2013;Bravo and Herrera, 2014;Latour and Rizzano, 2015;Tong et al, 2016), dissipative splice connections (Calado et al, 2013;Valente et al, 2017a,b), or connections with memory shape alloy bolts (Wang et al, 2015;Yam et al, 2015).…”

Section: Past Studies Regarding Classic Beam-to-column Connectionsmentioning

confidence: 99%

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Venghiac

Stașcov

Budescu

2018

Front. Built Environ.

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The behavior of steel structures subjected to seismic actions depends directly on the connections behavior. There are two current tendencies for ensuring the structural ductility: allowing the formation of plastic hinges in the beams by using reduced beam sections or reduced web sections or by ensuring the plastic hinge formation in the connection by using dissipative elements. This paper presents a new perspective regarding the energy dissipation mechanism formation within the beam-to-column connection. The design of connections capable of dissipating large amounts of energy, with an acceptable strength and ductile behavior is a real challenge for engineers. Sustainability is a big advantage for these connections. Another big advantage is the possibility of restoring the functionality of the damaged construction in a short time interval and with reduced costs. The introduction of connections with demountable energy dissipative plates can be a step forward in designing new beam-to-column connections for steel structures.

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Section: Past Studies Regarding Classic Beam-to-column Connectionsmentioning

confidence: 99%

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Venghiac

Stașcov

Budescu

2018

Front. Built Environ.

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“…The use of double-tee profiles for the structural members of steel moment-resisting frames (MRFs) is widespread in Europe and the USA. This large use is due to the existence of reliable formulations able to predict, in a very accurate way, the mechanical behaviour of I- or H-shape members, but also to the possibility to adopt a wide range of easy-to-construct beam-to-column connections [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Additionally, for most of the existing beam-to-column connection solutions, the flexural strength and stiffness can be accurately predicted by applying the component method [ 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Stiffness Prediction of Connections between CHS Tubes and Externally Welded I-Beams: FE Analyses and Analytical Study

2020

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Double-tee profiles are the most popular members in Europe and the USA for steel structures. However, more efficient cross-sections, such as circular hollow sections (CHSs), could be adopted, since they can provide higher aesthetic, economic and mechanical benefits, with the only drawback of more complex connections such as in the case of I-beams welded to the external surface of circular hollow profiles. Based on the ring model theory, developed by Togo, a rule to design the flexural resistance of such a connection has been included in the Eurocode 3 part 1.8, while no formulations are provided to predict the corresponding initial stiffness. The present work aims at filling this knowledge gap, adopting an approach based on experimental, numerical and analytical work. A monotonic and a cyclic test have been performed on two beam-to-column sub-assemblies; the experimental outcomes have been exploited to validate a finite element (FE) model developed in Abaqus and used to numerically perform the monotonic loading simulations of 30 joints. Afterwards, starting from the extracted information about stiffness, a regression analysis was carried out to define the coefficient of a design equation analytically derived applying the component method approach. The regression analysis is characterized by a coefficient of variation equal to 0.19.

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“…Real scale tests have been pursued by some of us, in the framework of seismic response of structures [1,2]. On the other hand, FEM modelling has been performed by some of us, to evaluate damaging and breaking behaviour of steel and steel/concrete structures [3,4].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Emissions analysis of a four-point bending test on a Reinforced Concrete beam

et al. 2017

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Abstract. Assessment of existing structures by means of non-destructive techniques is an important research topic in modern engineering, because of its potential in estimating structural health status without introducing undesired damage. Among several recognized techniques, Acoustic Emission (AE) analysis is growing interest in the scientific community, since it can be used to detect the initiation of cracking processes, to determine cracking typology and to extract other information from the specimen. In this paper, the authors present the results of a four-point bending test on a Reinforce Concrete (RC) beam, performed at the University of Salerno. The test has been conducted according to a loading protocol characterised by several loading-unloading cycles, and both mechanical and acoustic data have been recorded. The results will be presented in terms of standard AE parameters, commonly adopted in literature, such as Felicity ratio, signal strength and cumulative signal strength, historic index and b value. It will be underlined that these parameters allow to detect interesting moments of the phenomenon (cracking onset and development) and to assess the damage of the structure.

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Design of X-shaped double split tee joints accounting for moment–shear interaction

Cited by 34 publications

References 20 publications

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Stiffness Prediction of Connections between CHS Tubes and Externally Welded I-Beams: FE Analyses and Analytical Study

Acoustic Emissions analysis of a four-point bending test on a Reinforced Concrete beam

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