000197150 001__ 197150
000197150 005__ 20180913062405.0
000197150 022__ $$a0889-3241
000197150 02470 $$2ISI$$a000335487200008
000197150 037__ $$aARTICLE
000197150 245__ $$aShear Strength of Arch-Shaped Members without Transverse Reinforcement
000197150 269__ $$a2014
000197150 260__ $$aUSA$$bACI Structural Journal$$c2014
000197150 300__ $$a10
000197150 336__ $$aJournal Articles
000197150 520__ $$aArch-shaped members are used in many reinforced concrete structures such as tunnels, bridges, silos, or offshore constructions. They are generally designed to carry significant axial forces, and, in most cases, are not provided with transverse reinforcement. Depending on the applied actions, however, bending moments and shear forces may also develop. This can potentially lead to spalling failures of the concrete cover or to shear failures where the strength may be reduced in comparison with straight members. Such reduction is due to the curvature of the element and to the corresponding deviation forces originated by the compression and tension chords. In spite of the significance of the topic, little research has been performed. In this paper, the authors summarize the results of a comprehensive investigation comprising an experimental part on nine arch-shaped specimens with thickness equal to 400 mm (15.7 in.). On the basis of these results, the basic failure mechanisms and shear-transfer actions are identified. By using the principles of the critical shear crack theory for assessment of the shear strength, a design approach for such members is presented that accounts for the various mechanical and geometrical parameters. The approach provides consistent and accurate predictions when compared with the tests presented in the paper.
000197150 6531_ $$abéton
000197150 6531_ $$abéton armé
000197150 6531_ $$aeffort tranchant
000197150 6531_ $$apoutre courbe
000197150 6531_ $$aconcrete
000197150 6531_ $$areinforced concrete
000197150 6531_ $$ashear force
000197150 6531_ $$acurved beam
000197150 700__ $$0243855$$aCampana, Stefano$$g168387
000197150 700__ $$0240571$$aFernández Ruiz, Miguel$$g166236
000197150 700__ $$0240411$$aMuttoni, Aurelio$$g133346
000197150 773__ $$j111$$k3$$q573-582$$tACI Structural Journal
000197150 909C0 $$0252126$$pIBETON$$xU10235
000197150 909CO $$ooai:infoscience.tind.io:197150$$particle$$pENAC
000197150 937__ $$aEPFL-ARTICLE-197150
000197150 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000197150 970__ $$aCampana14/IBETON
000197150 980__ $$aARTICLE