Results 21 to 30 of about 8,183 (253)

Optimal Design of Steel Structures Using Innovative Black Widow Algorithm Hybridized with Greedy Sensitivity-Based Particle Swarm Optimization Technique [PDF]

open access: yesJournal of Soft Computing in Civil Engineering
This paper presents a Greedy Sensitivity-based analysis implemented on the Particle Swarm Optimization search engine (GSPSO). The effectiveness of the method focuses mainly on providing an intelligent population to enter meta-heuristic algorithms.
Mohammad Reza Ghasemi   +2 more
doaj   +1 more source

Design of Steel Footbridges for Unpredictive Loadings by STAAD Pro: LRFD vs. ASD for Cost Saving

open access: yesComputer Assisted Methods in Engineering and Science, 2022
Steel footbridges are common means of connecting two zones separated by any kind of physical obstruction to the pedestrian crossing. In the last century, they were mostly designed using manual calculations.
Armghan Naeem   +3 more
doaj   +1 more source

Numerical investigation of the effects of pedestrian barriers on aeroelastic stability of a proposed footbridge [PDF]

open access: yes, 2004
A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a motorway in the north of England has been undertaken.
Salisbury, I, Taylor, I. J., Vezza, M.
core   +2 more sources

Footbridge

open access: yesInformes de la Construccion, 1964
La pasarela recientemente construida en Des Moines (EE. UU.), presenta la notable particularidad de tener sus accesos en curva y apoyarse sobre pilares de forma cilíndrica. Como el terreno no tenía suficiente resistencia de sustentación se tuvo que reforzar hincando pilotes para hormigonar, sobre ellos, la solera en la que descansa el montante ...
Howard, -   +3 more
openaire   +2 more sources

Analysis of technical condition of footbridges over the railways in danger of collapse [PDF]

open access: yesMATEC Web of Conferences, 2019
The article presents issues related to the maintenance of small engineering structures, such as footbridges over railways. These types of objects, usually are simple both in structure and construction.
Chmielewski Ryszard, Bąk Aleksandra
doaj   +1 more source

Design of Lightweight Footbridges for Human Induced Vibrations [PDF]

open access: yes, 2009
Nowadays, it is well-known that for the structural safety verification of footbridges, and for the comfort guarantee of its users, it is fundamental to consider the effect of human induced vibrations, particularly: vibrations due to pedestrian traffic ...
BUTZ Chr.   +15 more
core   +1 more source

Non-local first-order modelling of crowd dynamics: a multidimensional framework with applications [PDF]

open access: yes, 2010
In this work a physical modelling framework is presented, describing the intelligent, non-local, and anisotropic behaviour of pedestrians. Its phenomenological basics and constitutive elements are detailed, and a qualitative analysis is provided.
Andrea Tosin   +37 more
core   +1 more source

A Statistical Approach for Modeling Individual Vertical Walking Forces

open access: yesApplied Sciences, 2021
This paper proposes a statistical approach for modeling vertical walking forces induced by single pedestrians. To account for the random nature of human walking, the individual vertical walking force is modeled as a series of steps and the gait ...
Fabrizio Pancaldi   +3 more
doaj   +1 more source

INTERVAL SERVICEABILITY ASSESSMENT OF FOOTBRIDGES [PDF]

open access: yesProceedings of the XI International Conference on Structural Dynamics, 2020
This paper studies serviceability assessment of footbridges through a non-deterministic approach. The parameters defining pedestrian-induced loading and the structural dynamic properties are characterized through possible ranges of variation. Starting from analytical expressions for the spectral moments of the structural response, the improved interval
Santoro R., Sofi A., Tubino F.
openaire   +3 more sources

Towards sustainable polymeric materials: zero waste, green and self-healing [PDF]

open access: yes, 2015
Although polymeric materials are widely adopted in various applications, the sustainability of the materials is often controversial, particularly on the current handling of polymeric wastes and the use of non-renewable resources as raw materials. A brief
Beng, Ahmad Hong Kueh, Chee, Zhou Kam
core   +1 more source

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