Results 21 to 30 of about 175 (127)
In situ testing and nonlinear modelling for a cable-stayed timber footbridge [PDF]
The authors had the chance to collect structural response measurements of a cable-stayed glued-laminated-timber (GLT) footbridge located in Farra d’Alpago (not far from the town of Belluno, in North-Eastern Italy). A consistent geometrically nonlinear finite element model was generated and its parameters were calibrated on the experimental data ...
Bortoluzzi D. +3 more
openaire +3 more sources
Exploring concepts for UHPFRC bending-active footbridges
[EN] This contribution describes two concepts for lightweight bending-active footbridges, and the corresponding experimental prototypes made of ultra-high-performance concrete (UHPFRC).
Navarro-Gregori, Juan +3 more
core +1 more source
This paper presents a numerical study on the deterministic and probabilistic serviceability assessment of footbridge vibrations due to a single walker crossing. The dynamic response of the footbridge is analyzed by means of modal analysis, considering only the first lateral and vertical modes.
Cristoforo Demartino +3 more
wiley +1 more source
Interaction between Walking Humans and Structures in Vertical Direction: A Literature Review
Realistic simulation of the dynamic effects of walking pedestrians on structures is still a considerable challenge. This is mainly due to the inter‐ and intrasubject variability of humans and their bodies and difficult‐to‐predict loading scenarios, including multipedestrian walking traffic and unknown human‐structure interaction (HSI) mechanisms.
Erfan Shahabpoor +3 more
wiley +1 more source
Since 1995, we have been measuring the in situ dynamic characteristics of different types of footbridges built in Portugal (essentially steel and precast reinforced concrete decks) with single spans running from 11 to 110 m long, using expedite exciting and measuring techniques.
C. S. Oliveira, Nuno Maia
wiley +1 more source
Ambient Vibration Testing for Story Stiffness Estimation of a Heritage Timber Building
This paper investigates dynamic characteristics of a historic wooden structure by ambient vibration testing, presenting a novel estimation methodology of story stiffness for the purpose of vibration‐based structural health monitoring. As for the ambient vibration testing, measured structural responses are analyzed by two output‐only system ...
Kyung-Won Min +6 more
wiley +1 more source
Damage in structures is reflected in permanent changes of their natural frequencies and theoretically can be derived through measurements. Still, measurement‐derived frequencies of structures usually reflect a superimposition of various effects, fluctuations due to environmental and loading conditions, noise, and possible permanent changes (damage or ...
Fanis Moschas, Eva Steirou, Ting-Hua Yi
wiley +1 more source
ABSTRACT Human impact in the form of reservoir construction and river regulation downstream of reservoirs, is causing irreversible alterations to hillslope and river channel connectivity in river catchments. This disruption in the dynamic equilibrium of the river is attributed to sediment accumulation upstream of the reservoir's dam, limited sediment ...
Joanna Piasecka +3 more
wiley +1 more source
Vibration Excitation and Control of a Pedestrian Walkway by Individuals and Crowds
As part of a continuing study on effects of humans on loading and dynamic response of footbridges, a steel frame walkway has been the subject of studies on the effects of multiple pedestrians with respect to loading and response mitigation. Following finite element modeling and experimental modal analysis to identify the low frequency vibration modes ...
James Mark William Brownjohn +1 more
wiley +1 more source
Network arch timber bridges with light timber deck on transverse crossbeams [PDF]
In modern bridge engineering, timber is more and more often considered as a choice for structural material. The advantages are evident: timber is environmentally friendly, easy to shape, thus it can meet various architectural requirements, and due to ...
Ostrycharczyk, Anna Weronika
core +1 more source

