Generalised component-based model for beam-to-column connections including axial versus moment interaction

Savio, Alexandre Almeida Del; Nethercot, D.A.; Vellasco, P.C.G. da S.; Andrade, S.A.L. de; Martha, Luiz Fernando

doi:10.1016/j.jcsr.2009.02.011

Cited by 74 publications

(45 citation statements)

References 41 publications

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“…In the case of a double-span beam condition imposed by column removal, the response is simulated by the spring models shown in Fig. 5, which have been devised based on the concept proposed by Del Savio et al [28]. Each spring model comprises a set of rigid bars -where each bar is associated with a distinct zone (i.e.…”

Section: Modelling Of Connection Behaviour For Progressive Collapse Amentioning

confidence: 99%

Modelling of beam response for progressive collapse analysis

et al. 2015

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A fundamental aspect of the progressive collapse behaviour of building structures is the response of axially restrained beams following partial or total loss of the loadbearing capacity of a supporting member. Owing to the various complex effects involved such as material and geometric nonlinearity, advanced numerical approaches tend to be the most effective tools for modelling performance. Such approaches, however, lack the simplicity needed for common use and may provide only limited capability for understanding structural behaviour. For such purposes, more limited analysis approaches that can address adequately the basic features of performance are likely to be more productive. One such method for modelling the response of axially restrained steel and composite beams following column loss is presented in this paper. The method involves explicit modelling of the connection behaviour and employs conventional structural analysis principles to describe beam performance using accessible spreadsheet calculations. Following careful verification against detailed numerical analyses and validation against available experimental results, the proposed method is deemed capable of modelling the various complex features of response with excellent accuracy. Therefore, it may form a promising advance in studying and understanding the basic mechanics of the problem.

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Section: Modelling Of Connection Behaviour For Progressive Collapse Amentioning

confidence: 99%

Modelling of beam response for progressive collapse analysis

et al. 2015

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“…Beam deflection (w) due to lateral loading (q) is associated with beam bending, support axial deformation (Δ s ) as well as rotation of the mid-span (Φ) and support (Φ′) connections of the double-span beam as illustrated in Figure 2c. Based on the mechanical spring model depicted in Figure 3 [7], the connection behaviour under combined bending moment (M) and axial load (N) has been explicitly studied [3]. The component method of EC3 [8] and EC4 [9] has been extended so as to incorporate the levels of axial load generated in column removal and the following connection bending moment-axial load-rotation relationship has been developed [3]:…”

Section: Representation Of Beam Nonlinear Static Responsementioning

confidence: 99%

Enhancing the Robustness of Steel and Composite Buildings

Nethercot¹,

Stylianidis²,

Izzuddin³

et al. 2011

Volume 7 Number 1

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Methods intended for use in the design of steel and composite building frames covering the provision of adequate robustness so as to guard against progressive collapse are in the process of moving from prescriptive to quantitative. An approach that recognises all the important complex physical phenomena, employs a realistic criterion of failure and is capable of being implemented at a variety of levels has been devised at Imperial College London. Recent further development of this method has streamlined the necessary analyses, thereby making it possible to conduct parametric studies that provide insights into the link between changes to the structure and quantitative measures of resistance to progressive collapse. This approach is used herein to examine a number of different arrangements, from which key features of behaviour are identified. It has therefore been possible to isolate those structural modifications with the greatest potential for improving robustness and, moreover, to associate quantitative measures of that improvement with each scheme.

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“…In the last few decades, the concept of semi-rigid joints became more popular. The researches of steel frames with semi-rigid joints showed that the stiffness of joints had a significant influence on the behaviour of frame elements (Del Savio et al 2009;Díaz et al 2011;Daniūnas, Urbonas 2008. The real behaviour of the framework allows designing safer structures and reaching the economic benefit (Daniūnas, Urbonas 2013;Ćirović et al 2014;Fayyadh, Razak 2014;Kala 2015;Misiūnaitė et al 2012;Talaslioglu 2015).…”

Section: Introductionmentioning

confidence: 99%

Analytical and Experimental Investi Gati on of Cold-Formed Steel Beam-to-Column Bolte D Gusset-Plate Joints

Bučmys

Daniūnas

2015

Journal of Civil Engineering and Management

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abstract. Nowadays, cold-formed constructions are being used more frequently on construction sites because of the good strength-to-cost ratio. However, insufficient studies are published examining the properties of these constructions. This paper investigates the behaviour of bolted gusset-plate joint since it is one of the easiest ways to connect a beam to a column. The paper presents analytical calculations using the component method and experimental test results. The joint was investigated using the mechanical model of three springs. The mechanical model for the calculation of bolt group stiffness was created according to Eurocode 3 Part 1-8 Stiffness formulations (EN 1993(EN -1-8 2005 (originally, it is recommended for elements that are 4 mm and thicker). The technique for the calculation of the stiffness of a gusset plate is presented. The strength of the joint was calculated using the technique introduced in

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Generalised component-based model for beam-to-column connections including axial versus moment interaction

Cited by 74 publications

References 41 publications

Modelling of beam response for progressive collapse analysis

Modelling of beam response for progressive collapse analysis

Enhancing the Robustness of Steel and Composite Buildings

Analytical and Experimental Investi Gati on of Cold-Formed Steel Beam-to-Column Bolte D Gusset-Plate Joints

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