Results 91 to 100 of about 1,932 (216)

Fundamental Frequencies of Vibration of Footbridges in Portugal: From In Situ Measurements to Numerical Modelling

open access: yesShock and Vibration, 2014
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 ...
C. S. Oliveira
doaj   +1 more source

Footbridges. Dynamic Design – Selected Problems

open access: yes, 2017
<p>Modern footbridges create challenge in esthetic and structural design. Breaking the proven canons is a recipe for architectural success. However esthetic form has to be also a functional pedestrian bridge.
Mikolaj Binczyk   +2 more
core   +1 more source

Evaluating the vertical vibration response of footbridges using a response spectrum approach

open access: yesAlexandria Engineering Journal, 2013
In this paper, the vertical vibration response of footbridges subjected to dynamic loads induced by walking humans is assessed via a response spectrum approach.
El-Sayed Mashaly   +3 more
doaj   +1 more source

On the use of a simple tuned mass damper model for reducing the excessive vibration of tsunami evacuation suspension footbridge

open access: yesMATEC Web of Conferences, 2018
The suspension footbridges are commonly constructed in the rural area. The constructions method is relatively simple compared to other types of bridges, thus as consequence, the construction cost also becomes relatively cheaper.
Ismail Febrin Anas   +2 more
doaj   +1 more source

Footbridges: taking into account human induced vibrations.

open access: yes, 2013
International audienceMore and more slender, and with longer span, contemporary footbridges are submitted to new external conditions and surroundings. The issue of unexpected oscillations occurred during their opening day, for the Léopold Sédar Senghor ...
Argoul, Pierre
core   +2 more sources

Pedestrian and bicycle bridges as examples of safe collision-free road crossings

open access: yesMATEC Web of Conferences, 2017
Pedestrians are most at risk when they are crossing the road. This represents a significant proportion of all fatalities among pedestrians, amounting respectively to 50% in non-built-up areas and 75% in built-up areas.
Miśkiewicz Mikołaj   +2 more
doaj   +1 more source

Standards guidelines for human comfort tested on timber footbridges

open access: yesSemina: Ciências Exatas e Tecnológicas, 2011
Activities such as walking, running and jumping can produce undesirable dynamic excitations, which are a phenomenon that occurs due to pedestrian-induced dynamic forces whenever a footbridge features a natural frequency within stepping frequency ranges ...
Pedro Gutemberg de Alcântara Segundinho   +2 more
doaj  

Evaluation of human-induced vibration of continuous footbridges

open access: yesMATEC Web of Conferences, 2015
With the development of construction materials and the introduction of high strength steel and concrete, the human-induced vibration became a dominant criterion for the design of pedestrian bridges.
El-Robaa Ahmed   +2 more
doaj   +1 more source

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