%0 Journal Article %1 hobbs1985hysteresis %A HOBBS, R. E. %A RAOOF, M. %D 1985 %K bridge strand %T Hysteresis in bridge strand %X The Paper examines the response of a preloaded spiral strand --with Its ends fixed against rotation-to variations in the axi.11 load. The various layers of wires forming the strand have been modelled as a series of cylindrical orthotropic sheets whose (non-linear) elastic properties are determined using results from conta<.:t st_ress theory. The strand axial stiffness and !ls variation with size of axial load perlurbatillll · 1.e. degree of development of mterw1re shpfoilow. The axial hysteresis values appropriate to fully bedded-in strands can then be obtained. The predictions of full-slip axial stiffness for a number of practical spiral strands are supported by experimental results, while a comparison between the theory and some earlier carefully conducted damping measurements on a long and fully bedded-m 39 mm OD strand is very encouraging. Theoretical hysteresis predictions are made for a number of ·practical strand constructions. The variation in fully bedded-in axial dampin_g between strand constructions is shown to be considerable, while long-term cable damping 1s very unlikely to be as large as has been assumed on the basis of low-cycle tests on newly rnanufactured spiral strand.

@article{hobbs1985hysteresis, abstract = {The Paper examines the response of a preloaded spiral strand --with Its ends fixed against rotation-to variations in the axi.11 load. The various layers of wires forming the strand have been modelled as a series of cylindrical orthotropic sheets whose (non-linear) elastic properties are determined using results from conta<.:t st_ress theory. The strand axial stiffness and !ls variation with size of axial load perlurbatillll · 1.e. degree of development of mterw1re shpfoilow. The axial hysteresis values appropriate to fully bedded-in strands can then be obtained. The predictions of full-slip axial stiffness for a number of practical spiral strands are supported by experimental results, while a comparison between the theory and some earlier carefully conducted damping measurements on a long and fully bedded-m 39 mm OD strand is very encouraging. Theoretical hysteresis predictions are made for a number of ·practical strand constructions. The variation in fully bedded-in axial dampin_g between strand constructions is shown to be considerable, while long-term cable damping 1s very unlikely to be as large as has been assumed on the basis of low-cycle tests on newly rnanufactured spiral strand.}, added-at = {2021-04-01T08:57:33.000+0200}, author = {HOBBS, R. E. and RAOOF, M.}, biburl = {https://www.bibsonomy.org/bibtex/29e2a9378ea835b81e9e2a365a44f645b/chkokalis}, interhash = {b224feb350c6fa40d9dd75ce8070cd53}, intrahash = {9e2a9378ea835b81e9e2a365a44f645b}, keywords = {bridge strand}, timestamp = {2021-04-01T18:22:47.000+0200}, title = {Hysteresis in bridge strand}, year = 1985 }