Slip factor in slip resistant joints with high strength steel

Cruz, Aniana; Simões, Rui; Alves, R.F.

doi:10.1016/j.jcsr.2011.11.001

Cited by 40 publications

(18 citation statements)

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“…Consequently, considering the 0.15 mm slip criterion and using a positioning of the LVDTs according to LVDTs 9-12 might lead to much lower slip factors than using the [9] performed slip factor tests with positions of displacement transducers comparable to those of LVDTs 9-12. Their results fit quite well with the lower slip factors achieved with LVDTs 9-12, see Table 2, in which the mean static slip factors based on slip deformations at the PE position are summarized for the preload level F p,C .…”

Section: Position Of Slip Measurementmentioning

confidence: 99%

Optimization of the test procedure for slip factor tests according to EN 1090‐2

et al. 2017

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Slip‐resistant connections are always used when slip and deformation in a bolted connection must be avoided at all costs, e.g. in radio masts and bridges. For some popular surface treatments, slip factors are given in EN 1090‐2, the execution standard for steel structures. For those surface conditions not considered in EN 1090‐2, the slip factor can be determined experimentally according to Annex G of EN 1090‐2. By reviewing slip factor values obtained with the Annex G test procedure and reported in the literature, it becomes obvious that in most cases the slip factors achieved experimentally are not comparable for identical surface conditions. This is potentially caused by different interpretations of the Annex G slip test procedure. As the slip factor is one of the main parameters influencing the bearing capacity of slip‐resistant connections, its determination should be on the safe side and not dependent on the various interpretation possibilities of the test procedure itself. For this reason, the optimization of the Annex G test procedure was thoroughly investigated in the European RFCS research project SIROCO, with the final objective being to enhance its reliability. The focus was on investigating the various test parameters such as type of preload measurement, ascertaining the possible slip planes, test speed, position of slip measurement, clamping length, preload level, evaluation of critical slip load and the performance of the extended creep test. The results achieved in these investigations have already been partly implemented in the revision of the current draft version of EN 1090‐2.

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Section: Position Of Slip Measurementmentioning

confidence: 99%

Optimization of the test procedure for slip factor tests according to EN 1090‐2

et al. 2017

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“…Beg and Hladnik [18] studied the buckling behaviour of ten I-section beams made from S690 HS steel, and a slenderness limit for buckling was suggested. For a HS steel connection, Girão Coelho and Bijlaard [19,20] applied S690 HS steel to the web shear panel and end-plate connection in steel frames and tested their mechanical performance, while Puthli and Fleischer [21], Dusicka and Lewis [22], Može et al [23][24][25] and Cruz et al [26] investigated the mechanical performance of connections with HS steel, and design approaches for the bearing strength of bolt holes, slip factors and local ductility were suggested. In addition, researchers at Tsinghua University in China have reported much research on the performance of pure steel structures constructed with HS steel [5], including the seismic behaviour of HS steel under cyclic loading [27].…”

Section: Introductionmentioning

confidence: 99%

Flexural behaviour of composite beams with high strength steel

Ban

Bradford

2013

Engineering Structures

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“…Cruz et al [10] obtained slip factors with values of 0.50 with blasted surfaces, without any additional surface treatment. In blasted surfaces, spray metalized with zinc or hot-dip galvanized ones, the slip factor easily reaches values above 0.40.…”

Section: Surface Treatment Classmentioning

confidence: 99%

Experimental tests on slip factor in friction joints: comparison between European and American Standards

Maiorana

Zampieri

Pellegrino

2017

Frattura Ed Integrità Strutturale

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Friction joints are used in steel structures submitted to cyclic loading such as, for example, in steel and composite bridges, in overhead cranes, and in equipment subjected to fatigue. Slip-critical steel joints with preloaded bolts are characterized by high rigidity and good performance against fatigue and vibrational phenomena. The most important parameter for the calculation of the bolt number in a friction connection is the slip factor, depending on the treatment of the plane surfaces inside the joint package. The paper focuses on the slip factor values reported in European and North American Specifications, and in literature references. The differences in experimental methods of slip test and evaluation of them for the mentioned standards are discussed. The results from laboratory tests regarding the assessment of the slip factor related to only sandblasted and sandblasted and coated surfaces are reported. Experimental data are compared with other results from the literature review to find the most influent parameters that control the slip factor in friction joint and differences between the slip tests procedures.

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Slip factor in slip resistant joints with high strength steel

Cited by 40 publications

References 0 publications

Optimization of the test procedure for slip factor tests according to EN 1090‐2

Optimization of the test procedure for slip factor tests according to EN 1090‐2

Flexural behaviour of composite beams with high strength steel

Experimental tests on slip factor in friction joints: comparison between European and American Standards

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