A5041469797- Structural Response to Dynamic Loads
- High-Velocity Impact and Material Behavior
- Structural Behavior of Reinforced Concrete
- Innovative concrete reinforcement materials
- Geophysical Methods and Applications
- Civil and Structural Engineering Research
- Structural Load-Bearing Analysis
- Concrete Corrosion and Durability
- Advanced X-ray and CT Imaging
- Masonry and Concrete Structural Analysis
- Transportation Safety and Impact Analysis
- Rock Mechanics and Modeling
- Medical Imaging Techniques and Applications
TU Dresden
2019-2023
Impact resistance of reinforced concrete (RC) structures can be significantly improved by strengthening RC members with thin composite layers featuring high damage tolerance. Indeed, to limit the well-known vulnerability cement-based materials against impact loading, synergistic effects short fibres and continuous textile meshes as hybrid reinforcement has been proved highly beneficial. This paper addresses characterisation novel composites through accelerated drop-weight tests conducted on...
Abstract A test series of 15 reinforced concrete (RC) plates was carried out in the drop tower Otto Mohr Laboratory Technische Universität Dresden. In these tests, structural behavior RC different thicknesses investigated under impact load. Within this report, specimen and used facility are introduced. Furthermore, experimental program results will be shown. Following, influence velocities presented discussed. The damage levels influenced by specific variation speed form a very good basis...
Abstract This study presents the performance of carbon textile reinforcement used as strengthening layers for reinforced concrete (RC) slabs under repeated impact loads. In order to reveal contribution behavior RC impacts, five identical with dimensions 1.5 m × 0.20 were manufactured and tested at Technische Universität Dresden. To understand failure mechanisms loadings, two specimens kept unstrengthened different velocities. The rest was strengthened three reinforcements embedded in an...
A large number of impact experiments have been carried out at the Technische Universität Dresden in recent years several research projects. The focus was on reinforced concrete plates one hand and subsequently strengthened other hand. Based these investigations, two fundamental tasks arose: (1) finding an objective description damage components made steel that had previously subjected to load (2) quantification effect a applied strengthening layer. In this paper we will both. At first,...
Abstract The damage analysis of reinforced concrete (RC) is high interest for reasons effective maintenance and structural safety buildings. structures RC plates loaded by an impact were investigated, applying X‐ray planar tomography finite element method (FEM). Planar allows getting three‐dimensional information the elements including crack, spalling, scabbing. FEM model validated on data justifies application further predictions description. In this study, we investigated three different...
Abstract Carbon reinforcements enjoy increasing popularity both in building reinforcement and new construction. The use of yarns with more than 50 000 filaments per roving finenesses up to 3300 tex, so‐called heavy tows, enables greater permissible stress thus increases the performance textile reinforced concrete structures. However, high yarn tensile forces an almost constant surface lead extension required end anchorage overlap areas. In project, it was investigated whether a modified...
Drop tower tests help to gain understanding about the general behaviour of reinforced concrete members under impact loading and analyse strains strain rates occurring within their reinforcement. For this purpose, beam slab specimens are usually employed. The main advantage beams compared slabs is that they less complex due almost two-dimensional instead three-dimensional wave propagation them. To investigate steel rates, ten on with various energies were performed. impactor sizes velocities...
Prediction of dynamic effects reinforced concrete structures under impact loading is a technical challenge. This consequence the great variability physical properties resulting from wide adaptability and range loading. Experiments numerical investigations are normally used on small scale to address problem. In this paper, tests conrete plates with lateral dimensions 1.5 m x thickness 30 cm presented. bending reinforcement, besides velocity two varied, diameter spatial distribution rebars....
Im Rahmen der beschriebenen Arbeit erfolgt die experimentelle Untersuchung von nachträglich an Stahlbetonplatten aufgetragenen Verstärkungsschichten, einer Impaktbelastung ausgesetzt werden. Die Grundlage hierfür bilden drei verschieden bewehrte Testserien, welche anhand eines entwickelten Versuchsschemas geprüft Zielstellung ist Quantifizierung Leistungsfähigkeit rückseitig applizierter Verstärkungen sowie Weiterentwicklung bereits existierenden Schädigungsbeschreibung und analytischen bzw....