Results 11 to 20 of about 175 (127)

Study of pedestrian-induced vibrations on timber footbridges

open access: yesMaderas: Ciencia y Tecnología, 2014
In Brazil, studies about pedestrian-induced vibrations on footbridges have been carried out since the early 1990s, for concrete and steel footbridges. However, there is no record of such studies and the Brazilian Standard NBR 7190 (1997) for the design ...
P. G. A. Segundinho
doaj   +2 more sources

Dynamics effects on a wooden footbridge

open access: yesMATEC Web of Conferences, 2017
The timber is the current trend for the construction of many footbridges because of many reasons as price, aesthetics and ecology. Most of these structures are designed using simple static models and massive elements.
Vašková Veronika   +2 more
doaj   +3 more sources

Prioritization of Resilience Initiatives for Climate-Related Disasters in the Metropolitan City of Venice. [PDF]

open access: yesRisk Anal, 2022
Abstract Increases in the magnitude and frequency of climate and other disruptive factors are placing environmental, economic, and social stresses on coastal systems. This is further exacerbated by land use transformations, urbanization, over‐tourism, sociopolitical tensions, technological innovations, among others.
Bonato M   +7 more
europepmc   +2 more sources

STUDY OF PEDESTRIAN-INDUCED VIBRATIONS ON TIMBER FOOTBRIDGESC

open access: yesMaderas. Ciencia y tecnología, 2010
In Brazil, studies about pedestrian-induced vibrations on footbridges have been carried out since the early 1990s, for concrete and steel footbridges. However, there is no record of such studies and the Brazilian Standard NBR 7190 (1997) for the design of timber structures only presents design requirements for static loads, in the case of timber ...
P. G. A Segundinho   +3 more
openaire   +5 more sources

A parametric study of the static and dynamic performance of timber arch footbridges with different hanger configurations

open access: yes, 2022
The influence of the hanger configuration in the arch and deck bending moments under asymmetric loads is widely used nowadays for improved designs of arch bridges. In this work, by means of a parametric study, those hanger configurations that most efficiently increase both the natural frequencies and buckling factors are identified, simultaneously ...
GARCÍA GARCÍA, ALEJANDRO
openaire   +2 more sources

Four new and two resurrected species of Bacidina from Sweden, with notes and a preliminary key to the known Scandinavian species

open access: yesNordic Journal of Botany, Volume 2023, Issue 5, May 2023., 2023
Four species of Bacidina (Ramalinaceae, Lecanorales, Ascomycota) are described as new to science from northern Europe (mainly Swedish material): Bacidina ferax S.Ekman, Bacidina lignicola S.Ekman, Bacidina maculans S.Ekman and Bacidina populnea S.Ekman.
Stefan Ekman
wiley   +1 more source

Modal identification and damping performance of a full‐scale GFRP‐SFRSCC hybrid footbridge

open access: yesStructural Control and Health Monitoring, Volume 29, Issue 12, December 2022., 2022
Abstract Slender footbridges are prone to excessive vibrations due to pedestrian effects, and comfort criteria often govern their design. In this sense, composite materials that combine high damping capacity with relatively high stiffness and low mass can provide functional benefits.
Vitor Dacol   +2 more
wiley   +1 more source

Modeling spatially unrestricted pedestrian traffic on footbridges [PDF]

open access: yes, 2010
The research into modeling walking-induced dynamic loading and its effects on footbridge structures and people using them has been intensified in the past decade after some high profile vibration serviceability failures.
Pavić, Aleksandar   +2 more
core   +1 more source

Quantification of dynamic excitation potential of pedestrian population crossing footbridges [PDF]

open access: yes, 2011
Due to their slenderness, many modern footbridges may vibrate significantly under pedestrian traffic. Consequently, the vibration serviceability of these structures under human-induced dynamic loading is becoming their governing design criterion.
Pavić, Aleksandar   +3 more
core   +1 more source

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

open access: yesStructural Control and Health Monitoring, Volume 27, Issue 1, January 2020., 2020
Summary Global Navigation Satellite System (GNSS) positioning technology has had widespread applications in the structural health monitoring as its overall performance has improved significantly in the last two decades. It is capable of providing timely and accurate structural vibration information such as dynamic displacements and modal frequencies at
Jiayong Yu   +5 more
wiley   +1 more source

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