Search results for "Precast concrete"

showing 5 items of 5 documents

Mechanical Tests on Innovative BIPV Façade Components for Energy, Seismic, and Aesthetic Renovation of High-Rise Buildings

2018

The paper shows the results of mechanical tests carried out on prototypes of a new Building Integrated Photovoltaic (BIPV) component developed by the author and SBskin Smart Building Skin s.r.l. This patented innovative component is able to merge structural function, insulation proprieties, and production of clean energy for retrofit actions and/or the construction of translucent fa&ccedil

Engineering020209 energyGeography Planning and DevelopmentTJ807-830Settore ICAR/10 - Architettura Tecnica02 engineering and technologyManagement Monitoring Policy and Law010402 general chemistryTD194-19501 natural sciencesRenewable energy sourcesPrecast concreteinnovative product0202 electrical engineering electronic engineering information engineeringGE1-350translucent panelenergy efficiencyBuilding automationBIPV (Building Integrated Photovoltaic)Environmental effects of industries and plantsRenewable Energy Sustainability and the Environmentbusiness.industryPhotovoltaic systemhigh-rise buildingdry-assembly systemStructural engineeringmultifunctional component0104 chemical sciencesRenewable energybuilding envelopeEnvironmental sciencesFacadefaçadeBuilding-integrated photovoltaicsmechanical resistancebusinessBuilding envelopeEfficient energy use
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Analytical evaluation of steel–concrete composite trussed beam shear capacity

2015

A calculation method for the prediction of the shear resistance of precast composite beams, named Hybrid Steel Trussed-Concrete Beams (HSTCBs), is herein proposed. HSTCBs are constituted by a prefabricated steel truss embedded within a concrete matrix cast in situ so that, after curing, the two materials work together in the mechanical response of the composite structural element, the steel truss behaving as reinforcement of the beam. The proposed analytical model is developed on the basis of the results of a reference experimental campaign of three-point bending tests available in the literature, carried out on specimens of HSTCB designed in order to attain a shear failure. Furthermore, th…

EngineeringDiagonalComposite number0211 other engineering and technologiesTruss020101 civil engineering02 engineering and technologyAnalytical modeling; Beam and arch action; Shear resistance; Steel–concrete composite beams; Building and Construction; Civil and Structural Engineering; Mechanics of Materials; Materials Science (all)0201 civil engineeringStructural elementAnalytical modelingBeam and arch actionPrecast concreteSteel–concrete composite beams021105 building & constructionGeneral Materials ScienceMechanics of MaterialCivil and Structural Engineeringbusiness.industryStructural engineeringBuilding and ConstructionFinite element methodSettore ICAR/09 - Tecnica Delle CostruzioniShear resistanceMechanics of MaterialsSolid mechanicsSteel–concrete composite beamMaterials Science (all)businessBeam (structure)
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Serviceability of segmental concrete arch-frame bridges built by cantilevering

2013

The evaluation of the safety degree in service life for a segmental prestressed concrete bridge built by the cantilever method presents different aspects related to strength, deformability, durability and to effects of time-dependent phenomena as creep and shrinkage. The case-study of a prestressed concrete frame bridge with inclined piers is presented, built by cantilevering, with precast segments. By considering the fundamental items of design and construction stages, the implications due to the arch effect in this static scheme are investigated, with respect to an equivalent bridge with a final scheme of continuous girder on vertical piers. The birth of a significant value of axial force…

EngineeringServiceability (structure)business.industryBuilding and ConstructionStructural engineeringSegmental bridge arch-frame bridge cantilever construction serviceability durability limit state delayed deformationsDurabilitylaw.inventionSettore ICAR/09 - Tecnica Delle CostruzioniPrestressed concretelawPrecast concreteGirderCantilever methodLimit state designGeotechnical engineeringArchbusiness
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Analytical prediction of the shear connection capacity in composite steel–concrete trussed beams

2016

Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to accou…

Materials scienceShear connection0211 other engineering and technologiesTruss020101 civil engineeringDowel02 engineering and technologySteel bar0201 civil engineeringDowels; Finite element model; Headed studs; Hybrid steel trussed-concrete beams; Push-out tests; Shear connection; Stress transfer mechanism; Theoretical model; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of MaterialsGirderPrecast concrete021105 building & constructionGeneral Materials ScienceHybrid steel trussed-concrete beamTheoretical modelComposite materialCivil and Structural EngineeringHybrid steel trussed-concrete beams Shear connection Dowels Headed studs Push-out tests Stress transfer mechanism Theoretical model Finite element modelbusiness.industryBuilding and ConstructionStructural engineeringStrength of materialsPush-out testHeaded studSettore ICAR/09 - Tecnica Delle CostruzioniPush-out testsHybrid steel trussed-concrete beamsMechanics of MaterialsHeaded studsStress transfer mechanismPlastic hingeSlabMaterials Science (all)businessDowelsBeam (structure)Finite element modelMaterials and Structures
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Experimental Investigation of the Shear Response of Precast Steel-Concrete Trussed Beams

2017

The results of an experimental campaign of three-point bending tests on precast composite beams, named hybrid steel-trussed concrete beams (HSTCBs), are provided. HSTCBs are typically constituted by a precast steel truss embedded in a block of concrete cast in place. Two series of specimens were manufactured, designed such that shear failure would occur, and tested under positive and negative bending moment. The experimental results obtained showed that fragile shear failure occurred in almost all cases, evidencing the crisis of the compressed concrete strut involved in the collapse mechanism. Yielding of the steel members provided ductility to the system, especially in those cases in which…

Three-point bending testsEngineering0211 other engineering and technologiesTruss020101 civil engineering02 engineering and technologyBendingAnalytical model0201 civil engineeringHybrid steel-trussed concrete beamsPrecast concrete021105 building & constructionGeneral Materials ScienceMechanics of MaterialAnalytical modelsDuctilityCivil and Structural EngineeringHybrid steel-trussed concrete beambusiness.industryMetal and composite structuresMechanical EngineeringShear resistanceStructural engineeringBuilding and ConstructionStrength of materialsShear (sheet metal)Three-point bending testSettore ICAR/09 - Tecnica Delle CostruzioniShear resistanceAnalytical models; Hybrid steel-trussed concrete beams; Metal and composite structures; Shear resistance; Three-point bending tests; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of Materials; Mechanical EngineeringMechanics of MaterialsBending momentMetal and composite structureMaterials Science (all)business
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