Search results for " vertical load"

showing 4 items of 4 documents

Evaluation of infilled frames: an updated in-plane-stiffness macro-model considering the effects of vertical loads

2015

The influence of masonry infills on the in-plane behaviour of RC framed structures is a central topic in the seismic evaluation and retrofitting of existing buildings. Many models in the literature use an equivalent strut member in order to represent the infill but, among the parameters influencing the equivalent strut behaviour, the effect of vertical loads acting on the frames is recognized but not quantified. Nevertheless a vertical load causes a non-negligible variation in the in-plane behaviour of infilled frames by influencing the effective volume of the infill. This results in a change in the stiffness and strength of the system. This paper presents an equivalent diagonal pin-jointed…

EngineeringEquivalent diagonal pin-jointed strut modelInfilled framesDiagonalIn-plane behaviourInfilled frames In-plane behaviour Equivalent diagonal pin-jointed strutmodel Vertical load influenceVertical load influenceComputer Science::Computational Engineering Finance and SciencemedicineInfillRetrofittingGeotechnical engineeringMacroCivil and Structural Engineeringmodelbusiness.industryStiffnessStructural engineeringBuilding and ConstructionMasonryGeotechnical Engineering and Engineering GeologyEquivalent diagonal pin-jointed strutFinite element methodStiffeningSettore ICAR/09 - Tecnica Delle CostruzioniGeophysicsmedicine.symptombusinessInfilled frame
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A macro-modelling approach for the analysis of infilled frame structures considering the effects of openings and vertical loads

2015

During the last decades, several macro-models have been proposed for the modelling of the infill panels' contribution to the lateral strength of frames. Despite all this effort, a robust model, which takes into account the influence of the vertical load, is not yet available. Furthermore, the influence of the very common case of infill walls with openings, such as windows and doors, has been neglected in all the code provisions that have been published so far. In this paper, an updated macro-model, based on the equivalent pin-jointed diagonal compressive strut, is presented. The proposed macro-model is able to represent the stiffening effect of the infill panel with openings by taking into …

RiskEngineeringequivalent strut; finite element analysis; infilled frames; masonry; opening effect; vertical load effect; Civil and Structural Engineering; Geotechnical Engineering and Engineering Geology; Safety Risk Reliability and Quality; Building and Construction; Mechanical Engineering; Ocean EngineeringDiagonal0211 other engineering and technologies020101 civil engineeringOcean Engineering02 engineering and technologyfinite element analysis0201 civil engineering021105 building & constructionInfillGeotechnical engineeringopening effectMacroSafety Risk Reliability and Qualityvertical load effectCivil and Structural EngineeringMathematical modelbusiness.industryinfilled frameMechanical EngineeringFrame (networking)Structural engineeringBuilding and ConstructionMasonryGeotechnical Engineering and Engineering GeologyFinite element methodfinite element analysiStiffeningequivalent strutmasonryinfilled framesReliability and QualitySafetybusiness
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Infilled frames: Influence of vertical load on the equivalent diagonal strut model

2008

The influence of masonry infills on framed structures behaviour is a central topic in the seismic design procedures and in the hazard evaluation of existing buildings. Many models use equivalent strut elements in order to represent the infill but among the several parameters influencing the interaction between frame and infill the level of vertical loads is hardly considered. Nevertheless, neglecting this effect may produce inaccuracy because the axial deformations of the loaded columns can produce non-negligible variation in the contact region between infill and surrounding frame, influencing the seismic response of the infilled frame. It can easily been observed that, when this regions ex…

Settore ICAR/09 - Tecnica Delle CostruzioniInfilled frames equivalent diagonal pin-jointed strut model vertical load influence
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Effect of vertical loads on lateral response of infilled frames

2004

infilled frames masonry infills vertical load lateral stiffness lateral strength
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