Displacement-dependent nonlinear damping model in steel buildings with bolted joints

Huidong, Zhang; Zhu, Xinqun; Li, Zhongxian; Yao, Shuguang

doi:10.1177/1369433218804321

Cited by 7 publications

(3 citation statements)

References 25 publications

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“…One critical source of uncertainty in damping modelling in steel structures with bolted connections lies in the so-called stick-slip phenomenon. Its input to the global structural damping may be very significant [227] and it is displacement dependent. Under these circumstances, one can regard as vital the recent Zhang et al's proposition of a more straightforward model, mimicking the viscous damping simplicity [227] to a certain degree.…”

Section: Hysteretic Behaviour In Systems With Bolted Connectionsmentioning

confidence: 99%

“…Its input to the global structural damping may be very significant [227] and it is displacement dependent. Under these circumstances, one can regard as vital the recent Zhang et al's proposition of a more straightforward model, mimicking the viscous damping simplicity [227] to a certain degree. Additionally, Rodas et al conceived a hysteretic model formulation for the behaviour of exposed column-base (ECB) details, accounting for unloading and reloading, pinching, and recentring phenomena [228], and Nath and Bhowmick [229] addressed the hysteretic behaviour of shear panels in moment connections.…”

Section: Hysteretic Behaviour In Systems With Bolted Connectionsmentioning

confidence: 99%

See 1 more Smart Citation

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

et al. 2022

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The importance of connections in steel structures is paramount, not only because it greatly influences the cost of construction and provides room for innovations, but also due to the connections’ impact on global structural behaviour. Therefore, research into innovative connections for seismic applications and related design criteria has significantly grown in recent years. However, it has been pursued mostly on local—connection or frame—levels, leaving the system analysis and code compliance levels with a meagre investigation. Moreover, less than 1% of published papers concerning steel connections and earthquake engineering are review articles. To overcome this gap, this systematic review of more than 240 references, including scientific contributions and design codes in the field aimed to cover both recent research and current shortcomings in practice and regulations. It has been found that European design rules updated to a fully performance-based design philosophy is imminent and is deemed to bring pre-qualified joints and increased complexity. Design rules have been systematized, and current hindrances have been highlighted. A deeper look into research needs and trends showed that investigations in connections for concentrically X braced frames are still a necessity, while developments in self-centring and replaceable connections as well as in simple solutions for increasing damping are expected to modify how joints are designed, as soon as semi-rigid and partial strength connections are more easily allowed by design codes.

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Section: Hysteretic Behaviour In Systems With Bolted Connectionsmentioning

confidence: 99%

Section: Hysteretic Behaviour In Systems With Bolted Connectionsmentioning

confidence: 99%

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

et al. 2022

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“…However, the shear-out failure type occurs as a result of edge distance ( e ) reduction. The loading types and rates were investigated in Aktas et al (2009), El-Sisi et al (2014), and Zhang et al (2019). Many variables and attributions were investigated in these studies, that is, ratio of the distance between hole center and plate free edge to the hole diameter ( e / D ) and proportion of joint width to hole diameter ( W / D ).…”

Section: Introductionmentioning

confidence: 99%

Identification of damage stages in bolted metallic joints for different joint geometries and tightening torques using statistical analysis

Abd-Elhady

Abu-Sinna

Atta

et al. 2019

Advances in Structural Engineering

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The main parameters controlling the structural behavior of bolted joints are the tightening torque ( T) and the joint geometry such as the edge distance ( e) to the bolt hole diameter ( D) ratio ( e/ D) and the joint width ( W) to the hole diameter ratio ( W/ D). In the first part of this study, the effects of W/ D and T, with a constant value of e/ D ( e/ D = 3), have been studied experimentally. Three values of W/ D (2.25, 3, and 3.75) with six values of T (0, 10, 15, 20, 25, and 30 N m) have been chosen to construct 18 assemblies. Experimental results highlighted the impact of W/ D, and T, on the different failure stages of bolted double-lap metallic joints. In the second part of this study, analysis of variance has been adopted to analyze the effects of T and W/ D in addition to the effect of e/ D which has been studied previously by the authors. The present experimental results showed that the value of applied load at which the sticking failure occurred increased by increasing the tightening torque up to T = 25 N m for all values of W/ D. However, the other stages of failure were slightly affected by the value of T. The results obtained from the analysis of variance identified that there is no clear effect of W/ D and e/ D on the sticking failure load. However, their effects are markedly clear for other stages of failure.

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Quantitative evaluation of bolt pre-load using coda wave interferometry and nonlinear coda wave interferometry: a comparative study

Wang,

Yi,

Sun

et al. 2024

J Civil Struct Health Monit

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The quantitative evaluation of bolt pre-load is crucial for the maintenance and prevention of accidents in bolt-connected structures. This study introduces the coda wave interferometry (CWI) method and the nonlinear coda wave interferometry (NCWI) method for quantitative evaluation of bolt pre-load. Experimental tests across three different scales of bolt pre-load changes were conducted on a bolt to compare the performances of CWI and NCWI in the quantitative evaluation of bolt pre-load. The results demonstrate that both CWI and NCWI can effectively characterize changes in bolt pre-load. For CWI, the relative velocity change (∆v/v) exhibits a linear relationship with the bolt pre-load. Meanwhile, for NCWI, the effective nonlinear level, denoted as $${\alpha }_{\Delta v/v}$$ α Δ v / v , demonstrates a quadratic dependence on the bolt pre-load. In CWI, the calculation of ∆v/v is dependent on the correlation coefficient between the coda waves of signals before and after bolt pre-load changes. It is prone to failure when there are significant changes in bolt pre-load. Conversely, NCWI demonstrates enhanced robustness in evaluating bolt pre-load changes across a range of magnitudes.

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Displacement-dependent nonlinear damping model in steel buildings with bolted joints

Cited by 7 publications

References 25 publications

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

Identification of damage stages in bolted metallic joints for different joint geometries and tightening torques using statistical analysis

Quantitative evaluation of bolt pre-load using coda wave interferometry and nonlinear coda wave interferometry: a comparative study

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