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Block tearing of S700 high strength steel bolted connections: Testing, numerical modelling and design
Highlights The block tearing behaviour of S700 high strength steel bolted connections have been studied. Tension tests on 16 S700 high strength steel bolted connection specimens have been performed. FE models were developed and validated against the test results and then employed for parametric studies. The accuracy and consistency of the relevant design rules were assessed.
Abstract The block tearing behaviour and resistance of S700 high strength steel (HSS) bolted connections in tension have been investigated through tests and numerical simulations and reported in this paper. The experiments were performed on sixteen S700 high strength steel bolted connections, including seven 2-bolt connections (with each comprising two bolts arranged perpendicular to the loading direction) and nine 4-bolt connections (with each comprising four bolts arranged in two rows). All specimens were carefully designed, with a series of geometric parameters, including the end and edge distances as well as the longitudinal and transverse pitches, varied and studied. The experimental setup and procedures, together with the key observed results, including the failure loads, the load–elongation curves and the block tearing failure modes, are fully reported and discussed. The experiments were supplemented by numerical simulations; finite element models were firstly developed to replicate the experimental behaviour and then employed to perform parametric studies to generate further numerical data on S700 high strength steel bolted connections susceptible to block tearing over a wide range of geometric dimensions. On the basis of the test and numerical data, the existing design methods for high strength steel bolted connections susceptible to block tearing, as given in the European code, American Specification and Australian Standard, were evaluated. The evaluation results revealed that all three considered design codes lead to consistent and safe-sided but conservative predictions of the failure loads, due principally to the lack of appropriate consideration of the location and area of the shear failure plane. The proposals of Teh and Uz [1], developed for normal strength steel bolted connections, were then investigated and shown to result in substantial improvements of block tearing resistance predictions, although some of the resistances are unsafe. Finally, the reliability of the proposal of Teh and Uz [1] when used for S700 high strength steel bolted connections was demonstrated by means of statistical analyses.
Block tearing of S700 high strength steel bolted connections: Testing, numerical modelling and design
Highlights The block tearing behaviour of S700 high strength steel bolted connections have been studied. Tension tests on 16 S700 high strength steel bolted connection specimens have been performed. FE models were developed and validated against the test results and then employed for parametric studies. The accuracy and consistency of the relevant design rules were assessed.
Abstract The block tearing behaviour and resistance of S700 high strength steel (HSS) bolted connections in tension have been investigated through tests and numerical simulations and reported in this paper. The experiments were performed on sixteen S700 high strength steel bolted connections, including seven 2-bolt connections (with each comprising two bolts arranged perpendicular to the loading direction) and nine 4-bolt connections (with each comprising four bolts arranged in two rows). All specimens were carefully designed, with a series of geometric parameters, including the end and edge distances as well as the longitudinal and transverse pitches, varied and studied. The experimental setup and procedures, together with the key observed results, including the failure loads, the load–elongation curves and the block tearing failure modes, are fully reported and discussed. The experiments were supplemented by numerical simulations; finite element models were firstly developed to replicate the experimental behaviour and then employed to perform parametric studies to generate further numerical data on S700 high strength steel bolted connections susceptible to block tearing over a wide range of geometric dimensions. On the basis of the test and numerical data, the existing design methods for high strength steel bolted connections susceptible to block tearing, as given in the European code, American Specification and Australian Standard, were evaluated. The evaluation results revealed that all three considered design codes lead to consistent and safe-sided but conservative predictions of the failure loads, due principally to the lack of appropriate consideration of the location and area of the shear failure plane. The proposals of Teh and Uz [1], developed for normal strength steel bolted connections, were then investigated and shown to result in substantial improvements of block tearing resistance predictions, although some of the resistances are unsafe. Finally, the reliability of the proposal of Teh and Uz [1] when used for S700 high strength steel bolted connections was demonstrated by means of statistical analyses.
Block tearing of S700 high strength steel bolted connections: Testing, numerical modelling and design
Jiang, Ke (author) / Tan, Kang Hai (author) / Zhao, Ou (author) / Gardner, Leroy (author)
Engineering Structures ; 246
2021-08-07
Article (Journal)
Electronic Resource
English
Numerical Modelling of Bolted Steel Connections
| British Library Conference Proceedings | 1998