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Deflection creep of pultruded composite sheet piling
Sheet pile walls are often used in waterfront and coastal environment to retain soil and prevent erosion. The time-dependent creep behavior of pultruded composite sheet piling was investigated. Two panels were tested under equally spaced third point bending at a span to depth ratio of 48; one was subject to a constant load of 50 % of Pmax and the other 25 % of Pmax. Tensile creep, shear creep, and deflection creep were recorded over 1 year. The following conclusions were drawn from the study: The tensile creep, shear creep, and deflection creep followed a similar power law with like exponents of time. The average of all exponents generated an n value of 0.33 with an 8 % deviation. The averaged n value is a material constant of creep, independent of the applied load and can be used to describe tensile, shear, and deflection creep of the material. The creep deflection predicted by Timoshenko's theory is linearly proportional to the load. The deflection creep predicted by Findley's model is not universally applicable. However, it offers a second check for Timoshenko's equation. The contribution of shear deflection to the total initial static deflection was approximately 6 % and the contribution of shear creep deflection to the total creep deflection at all time was about 18 %.
Deflection creep of pultruded composite sheet piling
Sheet pile walls are often used in waterfront and coastal environment to retain soil and prevent erosion. The time-dependent creep behavior of pultruded composite sheet piling was investigated. Two panels were tested under equally spaced third point bending at a span to depth ratio of 48; one was subject to a constant load of 50 % of Pmax and the other 25 % of Pmax. Tensile creep, shear creep, and deflection creep were recorded over 1 year. The following conclusions were drawn from the study: The tensile creep, shear creep, and deflection creep followed a similar power law with like exponents of time. The average of all exponents generated an n value of 0.33 with an 8 % deviation. The averaged n value is a material constant of creep, independent of the applied load and can be used to describe tensile, shear, and deflection creep of the material. The creep deflection predicted by Timoshenko's theory is linearly proportional to the load. The deflection creep predicted by Findley's model is not universally applicable. However, it offers a second check for Timoshenko's equation. The contribution of shear deflection to the total initial static deflection was approximately 6 % and the contribution of shear creep deflection to the total creep deflection at all time was about 18 %.
Deflection creep of pultruded composite sheet piling
Abbiegungskriechen von pultrudierten Verbundwerkstoff-Spundwandprofilen
Shao, Yixin (author) / Shanmugam, Jayasiri (author)
Journal of Composites for Construction ; 8 ; 471-479
2004
9 Seiten, 16 Bilder, 5 Tabellen, 11 Quellen
Article (Journal)
English
Deflection Creep of Pultruded Composite Sheet Piling
| Online Contents | 2004
Deflection Creep of Pultruded Composite Sheet Piling
| British Library Online Contents | 2004
| Engineering Index Backfile | 1910