129 research outputs found
Wie geht es dir wirklich? : Kompetenzkurs fĂŒr Multiplikatorinnen und Multiplikatoren zur StĂ€rkung der psychischen Gesundheit Jugendlicher
Darstellung des Themas: Jede zweite Person erlebt im Verlauf des Lebens eine psychische Störung. Da die meisten psychischen Störungen in der Jugend entstehen und sich im spĂ€teren Leben chronifizieren können, ist es wichtig, die psychische Gesundheit von Jugendlichen zu fördern und ihnen UnterstĂŒtzungsangebote zu bieten.
Ziel: Diese Arbeit befasst sich mit der Entwicklung eines Kompetenzkurses fĂŒr Multiplikator_innen zur StĂ€rkung der psychischen Gesundheit Jugendlicher. Durch den Kurs wird die psychische Gesundheit von Jugendlichen gezielt gefördert und befĂ€higt Multiplikator_innen, psychische Krisen bei Jugendlichen zu erkennen und bedarfsgerecht zu handeln.
Methodik: Mithilfe einer Literaturrecherche sind Quellen zur Datengrundlage ausgesucht worden. Aufbauend ist ein theoriebasiertes Pilotprojekt mit dem Projektmanagementtool Quint-Essenz konzipiert worden.
Zentrale Ergebnisse:
Die Literaturrecherche zeigt auf, dass der Kompetenzkurs einen Beitrag zur Schliessung der LĂŒcke im psychiatrischen Versorgungssystem leistet. Das theoriebasierte Pilotprojekt trĂ€gt den Namen ensa teens, lehnt sich an das bisherige Programm ensa an und die Konzipierung ist in die Teilschritte ProjektbegrĂŒndung, Gesundheitsförderung, Projektplanung, Projektorganisation und Projektsteuerung unterteilt worden.
Schlussfolgerung: ensa teens ist eine Massnahme, welche Multiplikator_innen befĂ€higt, Jugendliche in Krisensituationen zu unterstĂŒtzen und psychische AuffĂ€lligkeiten zu erkennen. Die Implementierung des Pilotprojektes ist realisierbar, da es mehr Chancen als Risiken aufweist
A time domain approach for data interpretation from longâterm static monitoring of historical structures
The conservation of historical buildings requires periodic inspections, maintenance, and/or strengthening interventions, resulting in significant costs. The accurate estimate of the structural condition may contribute to optimize the allocation of resources. With the diffusion of innovative technologies of Structural Health Monitoring (SHM), several permanent monitoring systems have been installed in the last decades in historical buildings. This fact has encouraged investigations about methods for the assessment of structural health based on recorded data. The aim of this study is to introduce a time-domain approach for the analysis and interpretation of large amount of data from long-term static monitoring of historical masonry structures. It is assumed that the recorded signals can be decomposed into two main components: a periodical one, mainly due to environmental actions, and a non-periodical component related to potential variations in the state of conservation of the structure. The analysis of the two components is conducted through specific descriptors (here referred to as "reference quantities") by means of statistical evaluations. Such reference quantities could be used as the roots for the establishment of standardized procedures for data analysis and interpretation. The approach has been applied to analyze data from the SHM system of the Two Towers of Bologna (Italy)
Wire-and-Arc Additive Manufacturing for lattice steel structures: overview of the experimental characterization on dot-by-dot rods
With the advent of a new arc-based additive manufacturing (AM) process, referred to as Wire-and-Arc Additive Manufacturing (WAAM), the scale of the metal printed parts increased up to several meters, thus becoming suitable for large-scale applications in marine, aerospace and construction sectors. However, specific considerations in terms of geometrical and mechanical properties ought to be made in order to effectively use the printed outcomes for structural engineering purposes. The introduction of the novel printing strategy referred to as âdot-by-dotâ, consisting in successive drops of molten metal, enabled the use of WAAM to realize complex lattice structures, made by continuous grids of WAAM rods. Nevertheless, their proper design requires an accurate evaluation of the influence of the non-negligible inherent geometrical irregularities on the mechanical response of the rods. Hence, extensive experimental work is needed in order to evaluate the mechanical response
of âdot-by-dotâ WAAM rods with geometrical imperfections. The present study focuses on the mechanical characterization of dot-by-dot WAAM-produced 304L stainless steel intersected rods, constituting the basic units of grid and lattice structures. The mechanical response of the specimens is assessed through tensile experimental tests conducted on two-ways planar nodes obtained from the intersection of two rods with different angles, hereafter also refereed to as crossed rods. The experimental results are then compared with tensile tests on single rods, to quantify the influence of the intersection angle in the structural response of the lattice structures
A direct design procedure for frame structures with added viscous dampers for the mitigation of earthquake-induced vibrations
Abstract A direct procedure for the seismic design of building structures with added viscous dampers is described in this paper. The procedure is applicable to regular multi-storey frame structures which are characterized by a period of vibration lower than 1.5 s. It aims at providing practical tools for the direct identification of the mechanical characteristics of the manufactured viscous dampers as well as for the structural design of the frame members' so that a target level of performance is achieved. The design philosophy is to limit the structural damages under severe earthquakes. First, a target damping reduction factor is selected to achieve the desired reduction in the peak structural response. The linear damping coefficients of the equivalent linear viscous dampers are calculated taking advantage of modal damping ratios properties of classically damped systems. Then, simple analytical formulas for the estimation of peak inter-storey velocities are used, together with an energy criterion to identify the non-linear mechanical characteristics of the manufactured viscous dampers. Finally, the internal actions in the structural elements are estimated through the envelope of two equivalent static analyses (ESA), namely: ESA1 in which the naked structure is subjected to a first set of equivalent lateral forces, and ESA2 in which the structure, with rigid diagonal braces substituting the added viscous dampers, is subjected to a second set of equivalent lateral forces. At this preliminary stage of the research, the procedure is targeted for the preliminary design phase, since correction factors to improve the accuracy in the estimation of the peak inter-storey velocities needs to be calibrate. Therefore, for final design, non-linear dynamic analyses are recommended
Long-Term Seismometric Monitoring of the Two Towers of Bologna (Italy): Modal Frequencies Identification and Effects Due to Traffic Induced Vibrations
The rise of human activities and the constant increase of vehicles traffic in the cities, and in particular of heavy vehicles such as buses and trucks, causes continues ambient vibrations that can detrimentally affect the conservation of built artifacts, especially historical constructions. The effects of urban vibrations on buildings and monuments are far from being fully investigated. In general, peak levels of traffic-induced vibrations are rarely high enough to be the main cause of heavy structural damages. On the other hand, they contribute to the process of deterioration by adding extra stressesâthrough fatigue damage accumulation occurring as a result of long periods of exposure to low levels of vibrationâor by contributing to soil densificationâwhich can lead to the settlement of building foundations. As such, the estimation of threshold levels above which traffic-induced vibrations may cause damages to monumental buildings requires specific studies including long-time monitoring campaigns. Data from experimental campaign can, indeed, be used to extract information on the variation of dynamic properties of buildings, thus providing valuable pieces of information for a complete knowledge to plan effective preservation interventions. The present work aims to identify the effects of traffic induced urban vibrations on the two Towers of Bologna, particularly prone to fatigue-related damages and close to a high transit of vehicles, through a preliminary analysis of data from several dynamic monitoring campaigns conducted during the last years
Chairman della "S14 Seismic Design Optimization" in sostituzione del Prof. T. Trombetti alla 14th World Conference on Earthquake Engineering, October 12-17, 2008, Beijing, China
Chairman della "S14 Seismic Design Optimization" (Oct.14 Tuesday, 13:30-15:20) in sostituzione del Prof. T. Trombetti alla 14th World Conference on Earthquake Engineering, October 12-17, 2008, Beijing, China
Session S14 Seismic Design Optimization
Co-Chairmen: Silvestri S., Gasparini G.
in substitution of
Salajegheh, E.; Trombetti, T.
Meeting Room No.111
S14-038 Stiffness-Strength-Ductility-Design for C
Braces
rescent Shaped Trombetti, Tomaso Trombetti, Tomaso; Silvestri, Stefano;
Gasparini, Giada
S14-012 Passive Control System of a Steel Truss
Bridge
Girder Cable-Stayed Wang, Kehai Wang, Ke
S14-018 Cost Modeling of Foundations of Reinfo
Buildings Designed for Seismic Effects
rced Concrete Thiruvengadam,
Vellaichamy
Thiruvengadam, Vellaichamy; Wason, J.C.;
Praseeda, K.I.
S14-021 Cost-Effectiveness of Tuned Mass Damper and Base Isolation Hong, Han Ping Lee, C.S.; Goda, Katsuichiro; Hong, Han
Ping
S14-040 Risk-Based Multi-Hazard Optimization o
Structures Using Evolutiounary Algorith
f Passsively Damped
ms
Dogruel, Seda Dogruel, Seda; Dargush, Gary F.
S14-050 Risk Based Minimum Life-Cycle Cost D
Structures
esign of Aseismic Lu, Dagang Lu, Dagang; Wang, Guangyuan
S14-053 Sensitivity Analysis of SDOF Structure P
Damage Ratio Coefficient
arameters on Hadzima-Nyarko,
Marijana
Hadzima-Nyarko, Marijana; Nyarko,
Emmanuel; Moric, Draga
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