Investigation of geometric imperfections and joint stiffness of support scaffold systems

Chandrangsu, Tayakorn; Rasmussen, Kim J.R.

doi:10.1016/j.jcsr.2010.12.004

Cited by 60 publications

(30 citation statements)

References 3 publications

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“…Following a regression analysis, they proposed the adoption of the reduction factors R c defined by Eqs. (14) and (15) for the web crippling strength of webs with centred holes and Eqs. (16) and (17) For webs with holes under bearing length:…”

Section: Design Recommendations By Uzzaman Et Al [40-42]mentioning

confidence: 99%

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Assessment of web crippling design provisions for application to proprietary soldier beams

et al. 2019

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Structures used for temporary works are lightweight so that they are easy to transport, erect and dismantle. Particular care should be taken in their design as local instabilities could arise due to their thin-walled nature. This article presents 12 tests on proprietary soldier beams subjected to two concentrate opposing loads applied simultaneously. The geometry of the proprietary beams feature cold-formed C-shaped sections with web holes connected back to back with internal spacers. In the absence of design rules for application to such members, the experimental results are used in the present investigation to assess the suitability of the provisions for the web crippling design of coldformed steel members as well as existing design methods from the literature, which account for the effect of perforations in the web. Experimental and predicted resistances are compared and design recommendations are provided.

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Section: Design Recommendations By Uzzaman Et Al [40-42]mentioning

confidence: 99%

“…Different modular falsework systems were tested and modelled in [14] that were used by subsequent investigations as benchmark tests. Research conducted in Australia examined the material and structural response of the individual components of falsework and assemblies that were utilised to generate data and propose reliable design models [15][16][17].…”

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confidence: 99%

Assessment of web crippling design provisions for application to proprietary soldier beams

et al. 2019

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“…A load eccentricity can occur between the timber bearer and the U-Head since the bearer is not always positioned such that its centre line coincides with the centre line of the jack, even though in good construction practice the U-head is twisted against the bearer so as to reduce the amount of eccentricity [26]. In order to model the eccentricity, a rigid link with length equal to the load eccentricity is connected to the top of the jack in the direction perpendicular to the bearer, and a vertical point load is applied at the far end of the link.…”

Section: Load Eccentricitymentioning

confidence: 99%

Structural modelling of support scaffold systems

Chandrangsu

Rasmussen

2011

Journal of Constructional Steel Research

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“…Papers [1,7,11,15] are solely or partially devoted to this issue. Articles [12] and [18] show laboratory tests on the flexibility of various scaffold joints. In paper [11] it is demonstrated that the consideration of flexibility in the case of scaffolds influences the calculation time and the obtained results.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ledger-Stand Joints in the Aluminum Modular Scaffold

Błazik‐Borowa¹,

Pieńko²,

Robak³

et al. 2017

Archives of Civil Engineering

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This paper concerns an approach to model the ledger-stand joints of modular scaffolds. Based on the analysis of the working range of the ledger (represented by a linear relationship between load and displacement), two models of the ledger-stand joint are analysed: first -with flexibility joints and second -with rigid joints and with a transition part of lower stiffness. Parameters are selected based on displacement measurements and numerical analyses of joints, then they are verified. On the basis of performed research, it can be stated that both methods of joint modelling recommended in this paper, can be applied in engineering practices.

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Investigation of geometric imperfections and joint stiffness of support scaffold systems

Cited by 60 publications

References 3 publications

Assessment of web crippling design provisions for application to proprietary soldier beams

Assessment of web crippling design provisions for application to proprietary soldier beams

Structural modelling of support scaffold systems

Analysis of Ledger-Stand Joints in the Aluminum Modular Scaffold

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