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Каталог "Статии" | Списание

INVERTED-T BEAMS: EXPERIMENTS AND STRUT-AND-TIE MODELING

N. Varney; E. Fernandez-Gomez; D. Garber; Mario Kani; O. Bayrak

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ЦБ III 1547

Детайли

Източник
ACI Structural journal
Издателство
American concrete institute
Година на издаване
2015
Страници
с. 147-156
Том
112
Ключови думи
лабораторни изследвания, нелинеен дизайн, стоманобетон
Отрасъл
Общ отдел. Наука. Библ. дело. Енциклопедии
Пор.№
2
Забележка
Рез. на англ. ез.
Анотация
Contrary to rectangular deep beams, inverted-T beams are loaded on a ledge at the bottom chord of the beam. This loading configuration induces a tension field into the web and the resulting complex strain distribution renders sectional design provisions inadequate. The applicability of strut-and-tie modeling (STM), developed for rectangular deep beams and simpler, two-dimensional designs, was evaluated. An experimental study was conducted in which 33 tests were performed on 22 large-scale reinforced concrete inverted-T beams and the effects of the following variables were investigated: ledge geometry, quantity of web reinforcement, number of point loads, member depth, and shear span-depth ratio. It was concluded that strut-and-tie modeling, although developed for much simpler structural components, offers a simple and accurate design method for the more complex strain distributions in inverted-T beams.
Системен №
4444

Действия