Search results for "push"

showing 10 items of 121 documents

Non-linear Correlation Coefficients for pushover analysis

2013

Aiming to put forward an improvement on Multimodal Pushover Analysis, a modified version of the modal correlation rule that takes into account the non-linear behavior of structures is proposed. The modification is primarily based on using the correlation coefficients consistent with the mechanical and dynamical properties of the hysteretic oscillators utilized in the MPA method, i.e. determined taking into account the second order statistics pertinent to the non-linear oscillators. Initially, the new correlation coefficients are evaluated by Monte Carlo Simulations (MCS), assuming a spectrum-compatible representation of the seismic input. The results of a large numerical parametric analysis…

Settore ICAR/09 - Tecnica Delle Costruzionimodal pushovercorrelation coefficientscorrelation coefficients; modal pushover; hysteretic behaviour; stochastic linearization.hysteretic behaviourstochastic linearizationcorrelation coefficients modal pushover hysteretic behaviour stochastic linearization
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Influence of lateral load distribution in estimation of target displacement and capacity demand by pushover analysis

2010

Two simplified adaptive load patterns for conservative estimation of seismic demand in 2D frames by pushover analysis are presented. The influence of load pattern in assessment of target displacement and distribution of demand along the height of the structure is investigated by comparing results of non linear history analysis, and non linear static analysis for eccentric braced frames. Numerical analyses show that the proposed load patterns provide safe estimation of the seismic response more accurately than load patterns proposed by seismic code.

Settore ICAR/09 - Tecnica Delle Costruzionipushover analysis adaptive load distributions target displacement seismic code.
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Seismic response of steel frames with reduced beam sections

2003

This study concerns the effectiveness of weakening on the beams of fully and partially restrained connection steel frames in order to locate plastic hinges far from the joints. Two types of non-linear analysis, for geometry and constitutive law are developed: static pushover analysis, in which the structure is subjected to constant vertical loads and to horizontal loads linearly increasing up to collapse; and incremental dynamic analysis, in which the structure is subjected to uniformly scaled ground motions. Applications for four-bay frames with three and nine stories designed according to the EC3 code and for Italian 1st-category seismic areas are developed in order to evaluate the influe…

Settore ICAR/09 - Tecnica Delle Costruzionisteel buildings seismic protection ductility pushover analysis incremental dynamic analysisSettore ICAR/08 - Scienza Delle Costruzioni
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Prove di Push-Out su travi reticolari miste

2008

Results of push-out experimental tests on typical italian typology of hybrid steel-to-concrete beam are presented and discussed in order to provide insight on transfer mechanism between concrete and steel truss. Two specimens of a shallow beam are tested and experimental relationships between interaction force, total slip and strain in truss elements are shown; moreover, behaviour of specimens at failure is discussed.

Settore ICAR/09 - Tecnica Delle Costruzionitrave reticolare mistaprove di push-out
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The Lean Urban Policies’ Design A values-centered method for sustainable urban planning.

In these past years, the necessity and urgency has emerged for policies tied to an alternate development to be efficiently applied, and not limited to single operations. The policies must be defined by a clear and effective method of action.
 Starting by investigating what are the relationship among human being, built environment and natural sources, in fact, we think it is possible to enrich the sustainable urban planning policies with new contents and possibly, new tools. By describing the frame, the objective is to define the most effective method, to be able to convey an effective project action and governance for the territory, to achieve predefined social and energy based objectives. …

Settore ING-IND/11 - Fisica Tecnica Ambientalelean management social innovation planning top-down bottom up sustainability urban startup innovation smart city urban policies trafficO2 Lampedusa Social Market Push.
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L’exemplum del Dinomenide Gelone tra memoria civica e storiografica

2015

La storia della Sicilia greca è scandita, nei suoi momenti chiave, dalla persistente presenza dell’immagine del Dinomenide Gelone. Questo lavoro analizza le valenze paradigmatiche assunte dalla sua figura nella memoria civica siracusana e nella produzione storiografica; inoltre ricostruisce le dinamiche politiche che hanno spinto i principali tiranni siracusani (da Dionisio I a Ierone II) a stabilire un confronto con Gelone. Il suo exemplum è utilizzato per legittimare azioni politiche e impegno antipunico; particolare attenzione è posta alla Biblioteca storica di Diodoro Siculo e al ruolo che in essa assume la figura del Dinomenide; in relazione a questi aspetti l’opera dell’Agirinense sem…

Settore L-ANT/02 - Storia GrecaThe history of Greek Sicily is marked at its key moments by the persistent image of Dinomenid Gelon. This work analyses the paradigmatic value taken on by his figure in the civic memory of the people of Syracuse and in historiographic production. It also reconstructs the political dynamics which pushed the principal tyrants of Syracuse (from Dionysius I to Hiero II) to establish comparisons with Gelon. His exemplum was used to legitimate political actions and commitment against the Carthaginianparticular attention was also given to the Library of History of Diodorus Siculus and the role that the figure of Dinomenid assumes in itregarding these aspects the work of this author seems to have sometimes the signs of a personal interpretation of history: one that cannot always be explained in relation to the use of the two principal sources for Western history Timaeus and Philistos.
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Shake-table testing of a stone masonry building aggregate: overview of blind prediction study

2023

Bulletin of earthquake engineering (2023). doi:10.1007/s10518-022-01582-x special issue: "Adjacent Interacting Masonry Structures"

Shake-table test550Incremental dynamic analysisincremental dynamic analysisheritagepushover analysismodelsddc:550masonry aggregatesBlind predictionHistorical masonry Masonry aggregates Incremental dynamic analysis Shake-table test Blind predictionCivil and Structural Engineeringhistorical masonryshake-table testwallsBuilding and ConstructionGeotechnical Engineering and Engineering GeologyBlind prediction; Historical masonry; Incremental dynamic analysis; Masonry aggregates; Shake-table testSettore ICAR/09 - Tecnica Delle CostruzioniGeophysicsseismic assessmentblind predictionHistorical masonryMasonry aggregatesstrengthperformance
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Special factors and the combinatorics of suffix and factor automata

2011

AbstractThe suffix automaton (resp. factor automaton) of a finite word w is the minimal deterministic automaton recognizing the set of suffixes (resp. factors) of w. We study the relationships between the structure of the suffix and factor automata and classical combinatorial parameters related to the special factors of w. We derive formulae for the number of states of these automata. We also characterize the languages LSA and LFA of words having respectively suffix automaton and factor automaton with the minimal possible number of states.

Special factorGeneral Computer ScienceSpecial factorsFactor automatonBüchi automatonω-automatonTheoretical Computer ScienceCombinatoricsDeterministic automatonTwo-way deterministic finite automatonNondeterministic finite automatonComputer Science::Data Structures and AlgorithmsCombinatorics on wordStandard Sturmian wordsMathematicsDiscrete mathematicsCombinatorics on wordsDAWGPushdown automatonComputer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing)Nonlinear Sciences::Cellular Automata and Lattice GasesSuffix automatonProbabilistic automatonSuffix automatonComputer Science::Formal Languages and Automata TheoryComputer Science(all)Theoretical Computer Science
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Ketogenic diet does not affect strength performance in elite artistic gymnasts

2012

Abstract Background Despite the increasing use of very low carbohydrate ketogenic diets (VLCKD) in weight control and management of the metabolic syndrome there is a paucity of research about effects of VLCKD on sport performance. Ketogenic diets may be useful in sports that include weight class divisions and the aim of our study was to investigate the influence of VLCKD on explosive strength performance. Methods 8 athletes, elite artistic gymnasts (age 20.9 ± 5.5 yrs) were recruited. We analyzed body composition and various performance aspects (hanging straight leg raise, ground push up, parallel bar dips, pull up, squat jump, countermovement jump, 30 sec continuous jumps) before and after…

Straight leg raisemedicine.medical_specialtyWeight lossSports medicinemedicine.medical_treatmentGymnasticlcsh:TX341-641Clinical nutritionBody compositionWeight loAnimal scienceWeight lossmedicineNutrition and DieteticVery low carbohydrate Ketogenic dietlcsh:Sports medicineNutrition and Dieteticsbiologymedicine.diagnostic_testAthletesbusiness.industrybiology.organism_classificationPush-upBiochemistryStrengthmedicine.symptombusinesslcsh:RC1200-1245lcsh:Nutrition. Foods and food supplyKetogenic dietDietingResearch ArticleFood ScienceJournal of the International Society of Sports Nutrition
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Stress transfer mechanism investigation in hybrid steel trussed-concrete beams by push-out tests

2014

Abstract Results of push-out tests carried out on Hybrid Steel Trussed–Concrete Beams (HSTCBs) before and after the concrete casting are presented and interpreted. Firstly, in order to check the ability of weldings before casting, tensile tests were performed on specimens reproducing different types of welded joints. Simplified design formulae were used to predict their ultimate strength. Secondly, results obtained by push-out tests on specimen representative of the beam before and after the concrete casting are presented and discussed. Finally, simplified analytical models proposed by the current European building code were adapted to the specific typology to roughly predict the ultimate s…

Stress transferring mechanismEngineeringConcrete beamsWelded jointsWeldinglaw.inventionStress (mechanics)lawHybrid steel trussed–concrete beamsTransfer mechanismUltimate tensile strengthHybrid steel trussed–concrete beamCivil and Structural Engineeringbusiness.industryMetals and AlloysAnalytical modellingBuilding and ConstructionStructural engineeringHybrid steel trussed–concrete beams; Welded joints; Push-out tests; Stress transferring mechanism; Analytical modellingPush-out testSettore ICAR/09 - Tecnica Delle CostruzioniPush-out testsMechanics of MaterialsBuilding codeCasting (metalworking)Welded jointbusinessBeam (structure)
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