Results 31 to 40 of about 1,932 (216)
Optimal Design of Steel Structures Using Innovative Black Widow Algorithm Hybridized with Greedy Sensitivity-Based Particle Swarm Optimization Technique [PDF]
Journal of Soft Computing in Civil EngineeringThis 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
Computer 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
Informes 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]
MATEC 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
A Statistical Approach for Modeling Individual Vertical Walking Forces
Applied 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]
Proceedings 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
Design Procedures for Footbridges Subjected to Walking Loads: Comparison and Remarks
The Baltic Journal of Road and Bridge Engineering, 2017 This paper aims at pointing out some misconceptions concerning the evaluation of the walking-induced dynamic response of footbridges, and their impact on design procedures. First, a review of the existing Code provisions is briefly presented.
Alberto Maria Avossa +2 more
doaj +1 more source
Impact of half‐joint failures on RC girder bridges: A robustness quantification study
Structural Concrete, EarlyView.Abstract The robustness of bridge structures is critical to ensuring safety and service continuity, particularly in aging infrastructure exposed to degradation and unexpected loads. Reinforced concrete (RC) half‐joint bridges—widely built in Italy between the 1950s and 1970s—exhibit specific vulnerabilities due to inspection challenges, durability ...
Paolo Martinelli, Matteo Colombo
wiley +1 more source
Design of Lightweight Footbridges for Human Induced Vibrations [PDF]
, 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 ...
SCHLAICH Mike +15 more
core +1 more source
Exploring the potential of Textile Reinforced Concrete for corrosion‐insensitive retaining walls
Structural Concrete, EarlyView.Abstract In a context where durability concerns, particularly the corrosion of steel reinforcement, remain a critical challenge for conventional reinforced concrete structures under severe exposure, Textile Reinforced Concrete (TRC) is emerging as a promising alternative.
J. Devènes +3 more
wiley +1 more source