Bronze
Refine
Year of publication
Document Type
- Article (32)
- Conference Proceeding (9)
- Book (1)
Language
- English (42) (remove)
Keywords
- Out-of-plane load (2)
- 3D printing (1)
- Earthquake (1)
- Earthquake Engineering (1)
- In- plane damage (1)
- In-plane (1)
- Isolation (1)
- Masonry infill (1)
- Muscle Fascicle (1)
- Muscle Force (1)
- Out-of-plane (1)
- Out-of-plane failure (1)
- Out-of-plane strength (1)
- Seismic (1)
- Seismic loading (1)
- Simulation (1)
- Stiffness (1)
- Tendon Rupture (1)
- Unreinforced masonry walls (1)
- concentrating collector (1)
- early warning and response system (1)
- food production (1)
- fragility curves (1)
- integration SHM in BIM (1)
- interconnected sensor systems (1)
- masonry structures (1)
- point-focussing system (1)
- raytracing (1)
- seismic risk (1)
- seismic structural damage detection via SHM (1)
- seismic vulnerability (1)
- smart engineering (1)
- solar process heat (1)
- sustainability (1)
- urban farming (1)
Institute
- Fachbereich Elektrotechnik und Informationstechnik (9)
- Fachbereich Medizintechnik und Technomathematik (8)
- Fachbereich Energietechnik (7)
- IfB - Institut für Bioengineering (4)
- Fachbereich Architektur (3)
- Fachbereich Bauingenieurwesen (3)
- Fachbereich Chemie und Biotechnologie (3)
- Fachbereich Luft- und Raumfahrttechnik (3)
- Fachbereich Wirtschaftswissenschaften (3)
- INB - Institut für Nano- und Biotechnologien (3)
- Fachbereich Maschinenbau und Mechatronik (2)
- Solar-Institut Jülich (2)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (1)
Seismic vulnerability estimation of existing structures is unquestionably interesting topic of high priority, particularly after earthquake events. Having in mind the vast number of old masonry buildings in North Macedonia serving as public institutions, it is evident that the structural assessment of these buildings is an issue of great importance. In this paper, a comprehensive methodology for the development of seismic fragility curves of existing masonry buildings is presented. A scenario – based method that incorporates the knowledge of the tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity (determined via the Neo Deterministic approach) is used for calculation of the necessary response spectra. The capacity of the investigated masonry buildings has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) is used for verification of the structural safety of the structures Performance point, obtained from the intersection of the capacity of the building and the spectra used, is selected as a response parameter. The thresholds of the spectral displacement are obtained by splitting the capacity curve into five parts, utilizing empirical formulas which are represented as a function of yield displacement and ultimate displacement. As a result, four levels of damage limit states are determined. A maximum likelihood estimation procedure for the process of fragility curves determination is noted as a final step in the proposed procedure. As a result, region specific series of vulnerability curves for structures are defined.
Experimental investigation of behaviour of masonry infilled RC frames under out-of-plane loading
(2021)
Masonry infills are commonly used as exterior or interior walls in reinforced concrete (RC) frame structures and they can be encountered all over the world, including earthquake prone regions. Since the middle of the 20th century the behaviour of these non-structural elements under seismic loading has been studied in numerous experimental campaigns. However, most of the studies were carried out by means of in-plane tests, while there is a lack of out-of-plane experimental investigations. In this paper, the out-of-plane tests carried out on full scale masonry infilled frames are described. The results of the out-of-plane tests are presented in terms of force-displacement curves and measured out-of-plane displacements. Finally, the reliability of existing analytical approaches developed to estimate the out-of-plane strength of masonry infills is examined on presented experimental results.
Masonry infill walls are commonly used in reinforced concrete (RC) frame structures, also in seismically active areas, although they often experience serious damage during earthquakes. One of the main reasons for their poor behaviour is the connection to the frame, which is usually constructed using mortar. This paper describes the novel solution for infill/frame connection based on application of elastomeric material between them. The system called INODIS (Innovative Decoupled Infill System) has the aim to postpone the activation of infill in in-plane direction and at the same time to provide sufficient out-of-plane support. First, experimental tests on infilled frame specimens are presented and the comparison of the results between traditionally infilled frames and infilled frames with the INODIS system are given. The results are then used for calibration and validation of numerical model, which can be further employed for investigating the influence of some material parameters on the behaviour of infilled frames with the INODIS system.
Can vascular function be assessed by the interpretation of retinal vascular diameter changes?
(2011)
The optical performance of a 2-axis solar concentrator was simulated with the COMSOL Multiphysics® software. The concentrator consists of a mirror array, which was created using the application builder. The mirror facets are preconfigured to form a focal point. During tracking all mirrors are moved simultaneously in a coupled mode by 2 motors in two axes, in order to keep the system in focus with the moving sun. Optical errors on each reflecting surface were implemented in combination with the solar angular cone of ± 4.65 mrad. As a result, the intercept factor of solar radiation that is available to the receiver was calculated as a function of the transversal and longitudinal angles of incidence. In addition, the intensity distribution on the receiver plane was calculated as a function of the incidence angles.
An increasing amount of popular articles focus on making models and sculptures by 3D Printing thus making more and more even private users aware of this technology. Unfortunately they mostly draw an incomplete picture of how our daily life will be influenced by this new technology. Often this is caused by a very technical point of view based on not very representative examples. This article focuses on the peoples needs as they have been structured by the so-called Maslow pyramid. Doing so, it underlines that 3D Printing (called Additive Manufacturing or Rapid Prototyping as well) already touches all aspects of life and is about to revolutionize most of them.