Results 61 to 70 of about 1,932 (216)

Vertical Vibrations of Footbridges Due to Group Loading: Effect of Pedestrian–Structure Interaction

Applied Sciences, 2021
The vibration serviceability of footbridges has evolved from the adoption of a single pedestrian crossing in the resonance condition to load cases in which several pedestrians cross the structure simultaneously.
Paweł Hawryszków, Roberto Pimentel, Rafaela Silva, Felipe Silva   +3 more
doaj   +1 more source

A Comprehensive Review of Mechanical and Durability Enhancements in Fiber‐Reinforced Lightweight and Geopolymer Concrete via Microsilica Integration

Journal of Engineering, Volume 2026, Issue 1, 2026.
This review synthesizes reported evidence indicating that the combined incorporation of glass fibers and microsilica in geopolymer concrete yields compressive strength improvements typically in the range of 15%–35%, with tensile and flexural strength gains of approximately 20%–50%, alongside reductions in chloride penetration depth of about 10%–30% and
Abhigyandeep Singh Rawat, Bheem Pratap, Pramod Kumar, Regasa Yadeta Sembeta, Dongdong Yuan   +4 more
wiley   +1 more source

Evaluating vibrations on a small-scale model of a timber footbridge

Maderas: Ciencia y Tecnología, 2011
In Brazil, the study of pedestrian-induced vibration on footbridges has been undertaken since the early 1990s, for concrete and steel footbridges. However, there are no recorded studies of this kind for timber footbridges.
Pedro Gutemberg de Alcântara Segundinho, Antonio Alves Dias, Marcelo Rodrigo Carreira   +2 more
doaj  

WALKING-INDUCED VIBRATION OF A FOOTBRIDGE [PDF]

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2015
In the last years, the need for structures able to link the functional and aesthetic role has led engineers and architects to design footbridges characterized by long span, light materials and increasing slenderness. The low ratio between permanent and variable loads makes recent footbridges more sensitive to the dynamic loads, such as the forces ...
LAI, ELEONORA, MULAS, MARIA GABRIELLA
openaire   +1 more source

Dealing With the Failure Risk in Modal Tracking and Condition Evaluation From Damage of Sensors in Long‐Term Monitoring Using Adaptive Strategy

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Modal tracking and condition evaluation are two important procedures in modal parameters based bridge condition evaluation, yet they always face the risk of failure due to the spatial aliasing caused by the damage of the sensors and the variation from the noise corruption.
Min He, Li-jun Wang, Zhi-han Zhou, Peng Liang, Zhi-qiang Liang, Xiao Li, Yafeng Wang   +6 more
wiley   +1 more source

A Computer Vision-Based Pedestrian Flow Management System for Footbridges and Its Applications

Infrastructures
Urban footbridges are critical infrastructure increasingly challenged by vibration issues induced by crowd activity. Real-time monitoring of pedestrian dynamics is essential for evaluating structural safety, ensuring pedestrian comfort, and enabling ...
Can Zhao, Yiyang Jiang, Jinfeng Wang
doaj   +1 more source

Sparsity‐Constrained Online Identification of Parameter Degradation in Multidamper Systems

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
The long‐term degradation of damper performance under adverse conditions compromises energy dissipation, posing a potential risk to structural safety. Online degradation identification approaches provide benefits, including in situ evaluation, real‐time processing, and high computational efficiency, among which Kalman filter–based methods offer ...
Xiongjun Yang, Xinying Ai, Qile Ding, Hongwei Ma, Ning Yang, Ying Lei, Lin Chen   +6 more
wiley   +1 more source

Easily constructable bamboo footbridges for rural areas

, 2017
The present study proposes an original approach for easily constructible footbridges to tackle the overwhelming lack of bridges in underprivileged rural areas.
Grigoropoulos, Georgios, Dimitrakopoulos, Ilias, Paraskeva, Themelina   +2 more
core   +2 more sources

Automated Operational Modal Analysis of Bridge Structure Based on Infinite Dirichlet Process Mixture Model Without Prior Threshold

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
As one of the vital steps for structural health monitoring, automated operational modal analysis (AOMA) without manual intervention remains one of the challenging problems because it requires processing large datasets and involves many user‐defined thresholds.
Deshan Shan, Ronghui Sun, Fanglai Xiong, Hoon Sohn   +3 more
wiley   +1 more source

Dynamic behavior of a cable-stayed footbridge depending on the calculation accuracy

Acta Polytechnica CTU Proceedings
Footbridges are analyzed in terms of dynamic response for pedestrian comfort. This problem is solved mainly on light and at the same time rigid constructions, which are easily oscillated by pedestrian load.
Kristian D‘Amico, Jiří Máca
doaj   +1 more source