Auteur Qiang Yu
Documents disponibles écrits par cet auteur (6)
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Article : texte imprimé
Qiang Yu, Auteur ; Zdenek P. Bazant, Auteur |This paper demonstrates the size effect on the shear strength of reinforced concrete (RC) beams with stirrups and does so in two separate and independent ways: (1) by fracture mechanics, based on finite-element analysis calibrated by a large bea[...]
Article : texte imprimé
Bažant, Zdeněk P., Auteur ; Qiang Yu, Auteur ; Guang-Hua Li, Auteur |The segmental prestressed concrete box girder of Koror-Babeldaob (KB) Bridge in Palau, which had a record span of 241 m (791 ft), presents a striking paradigm of serviceability loss because of excessive multidecade deflections. The data required[...]
Article : texte imprimé
Bažant, Zdeněk P., Auteur ; Qiang Yu, Auteur ; Guang-Hua Li, Auteur |As a sequel to Part I, which clarified the causes of the unexpectedly large deflections of the Koror-Babeldaob Bridge in the Pacific island nation of Palau, Part II presents the numerical procedure and reviews the lessons learned. The box girder[...]
Article : texte imprimé
Qiang Yu, Auteur ; Jia-Liang Le, Auteur ; Hoover, Hristian G., Auteur |Recent disagreements on the mathematical modeling of fracture and size effect in concrete and other quasi-brittle materials are obstacles to improvements in design practice, and especially in design codes for concrete structures. In an attempt t[...]
Article : texte imprimé
Zdenek P. Bazant, Auteur ; Qiang Yu, Auteur ; Xi, Yunping, Éditeur scientifique |The effect of V-notches (or reentrant corners) on fracture propagation has been analyzed for brittle materials, but not for quasi—brittle materials such as concrete, marked by a large material characteristic length producing a strong size effect[...]
Article : texte imprimé
Bažant, Zdeněk P., Auteur ; Qiang Yu, Auteur |The cohesive crack model has been widely accepted as the best compromise for the analysis of fracture of concrete and other quasibrittle materials. The softening stress-separation law of this model is now believed to be best described as a bilin[...]
