Search results for " limit design"

showing 3 items of 3 documents

Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity

2014

Abstract The paper proposes a preliminary design tool for reinforced concrete (RC) elements strengthened by fiber-reinforced-polymer (FRP) sheets to be used in civil engineering applications and in particular in medical buildings. The design strategy is based on limit analysis theory and utilizes a numerical procedure which provides a direct method to determine peak load, failure mode and critical zones of the structural elements of interest.

EngineeringRC slabs limit designbusiness.industryFE-based 3D analysiDesign toolStructural engineeringDesign strategyFibre-reinforced plasticPeak loads and failure modesSettore ING-IND/35 - Ingegneria Economico-GestionaleReinforced concreteLoad carryingLimit analysisPeak loadCeramics and CompositesFE-based 3D analysis; FRP-strengthening systems; Peak loads and failure modes; RC slabs limit design; Ceramics and Composites; Civil and Structural EngineeringFRP-strengthening systemSettore MED/36 - Diagnostica Per Immagini E RadioterapiabusinessFailure mode and effects analysisCivil and Structural EngineeringComposite Structures
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Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity to face…

2014

The paper has proposed a limit analysis procedure for a preliminary design of RC elements strengthened by externally bonded FRP sheets. The procedure, based on a multi-yield-criteria limit analysis approach, has led to a reliable prediction of peak loads and failure modes of the analyzed elements (slabs) by simultaneously considering the limit state of the constituent materials, so resulting very useful in many applications of engineering interest. The attention has been focused on hospital applications in which increment of service loads or realization of openings can weaken some structural elements that have been strengthened by FRP sheets.

FRP-strengthening systems RC slabs limit design FE-based 3D analysis Peak loads and failure modesSettore MED/36 - Diagnostica Per Immagini E RadioterapiaSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industriale
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P-Delta effect in structural optimization

2010

The present paper is devoted to the optimal design of structures constituted by elastic perfectly plastic material. In particular, reference will be made to the minimum volume design of multi-storey steel frames taking into account the P-Delta effect. For the sake of generality, the structure is thought as discretized into compatible finite elements and subjected to fixed and quasi-statically acting (wind) loads as well as to dynamic (seismic) loads. The effects of the dynamic actions are studied by utilizing a classical modal technique. The relevant optimal design problem is formulated on the grounds of a statical approach and different resistance limits are considered: in particular, it i…

Settore ICAR/08 - Scienza Delle Costruzionioptimal design elastic and plastic shakedown limit design P-Delta effect.
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