The use of PREM beams, consisting of a steel joist partially or totally embedded in the concrete, represents an effective alternative with respect to more traditional structural systems. While a lot of effort has been devoted to understand flexural behaviour of such structures, the shear strength is still an open issue. In this work, an experimental and numerical study on shear response of PREM girders is presented, based on a preliminary test campaign. Nine beams are tested until collapse, which has occurred under shear. Numerical models obtained through the use of ABAQUS software were studied by using different steel concrete interfaces. An analytical model is also presented, which allows to estimate shear strength in such structural elements. Application of the model to tested beams shows a good agreement against experiments.
INDAGINI PRELIMINARI SUL COMPORTAMENTO A TAGLIO DELLE TRAVI PREM
PLIZZARI, Giovanni;MINELLI, Fausto
2012-01-01
Abstract
The use of PREM beams, consisting of a steel joist partially or totally embedded in the concrete, represents an effective alternative with respect to more traditional structural systems. While a lot of effort has been devoted to understand flexural behaviour of such structures, the shear strength is still an open issue. In this work, an experimental and numerical study on shear response of PREM girders is presented, based on a preliminary test campaign. Nine beams are tested until collapse, which has occurred under shear. Numerical models obtained through the use of ABAQUS software were studied by using different steel concrete interfaces. An analytical model is also presented, which allows to estimate shear strength in such structural elements. Application of the model to tested beams shows a good agreement against experiments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
