Nonlinear Stability Analysis of a Radially Retractable Suspen-Dome

Liu, Yangqing; Feng, Jian; Tu, Yongming

doi:10.18057/ijasc.2017.13.2.2

Cited by 6 publications

(6 citation statements)

References 18 publications

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“…As indicated in Equation (1), tan α ≤ μi and for 0° < α < 90°, 0° < α < arctanμi. That is, if 0° < α < arctanμi, the cable cannot slide, and pre-stress cannot be applied; this scenario should be avoided during the construction process.…”

Section: Internal Force Calculation Process Of Passive-tensioning Cab...mentioning

confidence: 99%

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Effect of Random Pre-Stressed Friction Loss on the Performance of a Suspen-Dome Structure

2022

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The key to the high-efficiency performance of the suspen-dome structure is to apply the pre-stressed design value to the structure accurately. However, engineering practice has found that the use of tensioning hoop cables to apply the pre-stress will produce noticeable pre-stressed friction loss (PFL), which significantly affects the safety performance of the structure. In this paper, based on a 1:10 scaled-down experiment model of a suspen-dome structure with rolling cable-strut joint installed, the random PFL (RPFL) effect of the suspen-dome on structure performance was analyzed through a probability statistics theory. First, aiming at the unequal tensioning force at both sides of the tensioned hoop cable during the tensioning process, a pre-stressed force calculation method is proposed that considers the unequal tensioning control force and RPFL at all cable–strut joints, and the reliability of this method is verified through a tension test. Then, based on the cable-joint tension test carried out in the early stage of the research group, a random mathematical model of the friction coefficient (FC) at the rolling cable–strut joint is established. And then, the cable force calculation method is used to establish the random finite element model, and independent and random changes in the FC at each rolling cable–strut joint can be considered. Subsequently, the Monte Carlo method is used to calculate the random mathematical characteristics of the mechanical performance parameters such as the member stress and joint deformation, and the obtained results are verified through a static loading experiment. In addition, to investigate the effect of random defects on structural stability, other random defects, such as the initial curvature and installation deviation, were continuously introduce based on the random finite element model. As such, we could obtain the law of the effect of multi-defect random variation coupling on the structure’s ultimate bearing capacity.

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Section: Internal Force Calculation Process Of Passive-tensioning Cab...mentioning

confidence: 99%

“…A new type of hybrid space structure, the suspen-dome, enhances the structural stability and ease of construction of buildings [1]. Since its proposal by Kawagucki [2], the suspen-dome has been widely used in more than 20 engineering projects [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Random Pre-Stressed Friction Loss on the Performance of a Suspen-Dome Structure

2022

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“…The influence of imperfections on structural behaviour during the motion is investigated in this section. The nonlinear buckling mode [37][38][39][40][41] is chosen as the imperfection distribution for the consistent imperfection mode method. Both positive imperfection and negative imperfection are applied.…”

Section: Effects Of Imperfections On the Moving Processmentioning

confidence: 99%

Static and Kinematic Behaviour of a Foldable Truss Roof Structure

2019

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In this paper, a type of foldable truss structure formed by four-bar linkages is firstly proposed as a retractable roof. Then the mechanical behavior of a fully closed roof system is studied. The results show that the member buckling has a great effect on the ultimate capacity of foldable truss structures. The failure load of the structure is smaller if buckling is considered. It is also found that the effect of imperfections on the failure load of the foldable structure is not significant. Furthermore, the stress variation during the folding is small. However, when initial imperfections are introduced, the maximal member stress during the motion increases greatly, which is almost close to yield stress.

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Section: Effects Of Imperfections On the Moving Processmentioning

confidence: 99%

Volume 14 Number 4

2019

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Aims and scopeThe International Journal of Advanced Steel Construction provides a platform for the publication and rapid dissemination of original and up-to-date research and technological developments in steel construction, design and analysis. Scope of research papers published in this journal includes but is not limited to theoretical and experimental research on elements, assemblages, systems, material, design philosophy and codification, standards, fabrication, projects of innovative nature and computer techniques. The journal is specifically tailored to channel the exchange of technological know-how between researchers and practitioners. Contributions from all aspects related to the recent developments of advanced steel construction are welcome.

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Nonlinear Stability Analysis of a Radially Retractable Suspen-Dome

Cited by 6 publications

References 18 publications

Effect of Random Pre-Stressed Friction Loss on the Performance of a Suspen-Dome Structure

Effect of Random Pre-Stressed Friction Loss on the Performance of a Suspen-Dome Structure

Static and Kinematic Behaviour of a Foldable Truss Roof Structure

Volume 14 Number 4

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