The effect of plastic fines on the shear modulus and damping ratio of silty sands
Sign Up to like & getrecommendations! Published in 2019 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-019-01522-1
Abstract: The dynamic behavior of soil material is of importance in construction and geotechnical engineering. This study focuses on the dynamic properties of silty sands, particularly on the effect of plastic fines content (FC) on the… read more here.
Keywords: shear modulus; sand; plastic fines; effect ... See more keywords
Experimental investigation of dynamic shear modulus and damping ratio of Qinghai-Tibet frozen silt under multi-stage cyclic loading
Sign Up to like & getrecommendations! Published in 2020 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2019.102938
Abstract: Abstract The transportation infrastructure built in cold regions is mostly above frozen soil, whose stability is of concern, and which has been studied as a subgrade for highways and railways. Based on cryogenic cyclic dynamic… read more here.
Keywords: shear modulus; damping ratio; frozen silt; dynamic shear ... See more keywords
The architecture and dynamic properties of young Salix purpurea trees in the context of riparian engineering systems
Sign Up to like & getrecommendations! Published in 2018 at "Ecological Engineering"
DOI: 10.1016/j.ecoleng.2018.09.014
Abstract: Abstract Soil and Water Bioengineers using plants for civil engineering purposes are faced with challenges to determine the interrelation of dynamic and architectural properties of riparian trees. This study aims to improve the characterization of… read more here.
Keywords: engineering; dynamic properties; salix purpurea; riparian trees ... See more keywords
On the importance of soil damping for tall buildings loaded by wind
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2017.11.029
Abstract: In this paper, the overall damping as function of the velocity of vibration of two tall structures subjected to wind is studied. The overall damping ratio is studied by means of two simple, but representative… read more here.
Keywords: damping tall; soil damping; overall damping; damping ratio ... See more keywords
Identification of an equivalent viscous damping function depending on engineering demand parameters
Sign Up to like & getrecommendations! Published in 2019 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2019.03.058
Abstract: Abstract When performing a nonlinear time-history analysis of a reinforced concrete structure, it is necessary for the used structural model to dissipate the correct amount of energy. For the sake of computational efficiency, viscous damping… read more here.
Keywords: equivalent viscous; engineering; viscous damping; model ... See more keywords
Equivalent viscous damping of steel members for direct displacement based design
Sign Up to like & getrecommendations! Published in 2021 at "Structures"
DOI: 10.1016/j.istruc.2021.07.056
Abstract: Abstract Predicting the required equivalent damping ratio is an essential step in predicting the structural element ductility demand through Direct Displacement Based Design methodology. This study presents an equivalent damping ratio model for steel members… read more here.
Keywords: ratio; direct displacement; duration; displacement based ... See more keywords
Optimizing logarithmic decrement damping estimation through uncertainty propagation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.05.040
Abstract: Abstract This work derives an analytical expression for the optimal number of periods between samples when estimating damping using the logarithmic decrement method. This expression, obtained from an uncertainty analysis of the method's principal equation,… read more here.
Keywords: damping ratio; logarithmic decrement; optimizing logarithmic; uncertainty ... See more keywords
Impact damping ratio of a nonlinear viscoelastic foam
Sign Up to like & getrecommendations! Published in 2018 at "Polymer Testing"
DOI: 10.1016/j.polymertesting.2018.10.023
Abstract: Abstract Damping is an important parameter to measure the energy dissipated by a cushion foam during an impact. Damping is commonly characterized by damping indices such as damping ratio, loss factor, and tangent of the… read more here.
Keywords: impact; nonlinear viscoelastic; impact damping; model ... See more keywords
Small and intermediate strain properties of sands containing fines
Sign Up to like & getrecommendations! Published in 2018 at "Soil Dynamics and Earthquake Engineering"
DOI: 10.1016/j.soildyn.2018.02.020
Abstract: Abstract The goal of this paper is to find the influence of fines content, fc, on the fitting parameters of Hardin's relationship to predict shear modulus and damping ratio at small and intermediate shear strain… read more here.
Keywords: small intermediate; fines content; damping ratio; intermediate strain ... See more keywords
Full-scale measurements and damping ratio properties of cooling towers with typical heights and configurations
Sign Up to like & getrecommendations! Published in 2018 at "Thin-walled Structures"
DOI: 10.1016/j.tws.2017.12.024
Abstract: Abstract The standard damping ratio for cooling towers is equivalent to that of high-rise reinforced concrete structures, which is 5%. But considering the unique configuration and material properties of the cooling towers, the actual damping… read more here.
Keywords: towers typical; cooling towers; properties cooling; damping ratio ... See more keywords
Equivalent Damping Ratio Equations in Support of Displacement-Based Seismic Design for Pile-Supported Wharves
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Earthquake Engineering"
DOI: 10.1080/13632469.2016.1172377
Abstract: This study primarily proposes new equivalent damping ratio equations based on Jacobsen’s approach for displacement-based seismic design of pile-supported wharves to account for wharf configurations and soil-pile interaction. It is found that Pivot hysteresis model… read more here.
Keywords: seismic design; damping ratio; based seismic; displacement based ... See more keywords