Results 41 to 50 of about 4,445 (199)

Identity Play: Middle School Youths' Provisional Self‐Making in Horizon‐Expanding STEM Spaces

Science Education, EarlyView.
ABSTRACT This study introduces identity play as an analytic construct for science education to explore improvisational dimensions of middle school students' STEM identity development in multiple out‐of‐school learning experiences focused on environmental problem‐solving.
Heidi B. Carlone, Alison K. Mercier
wiley   +1 more source

Measured dynamic properties for FRP footbridges and their critical comparison against structures made of conventional construction materials

Composite structures, 2019
The related paper reports new experimental data for dynamic properties (i.e. modal mass, natural frequency and damping ratio) of eight FRP composite footbridges in Europe, which helps to resolve the weakness in knowledge and understanding of dynamic ...
Xiaojun Wei, J. Russell, S. Z̆ivanović, J. T. Mottram   +3 more
semanticscholar   +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

Pedestrian load models of footbridges

MATEC Web of Conferences, 2017
The increase of vibration problems in modern footbridges shows that footbridges should no longer be designed for static loads only. Not only natural frequencies but also damping properties and pedestrian loading determine the dynamic response of ...
Máca Jiří, Štěpánek Jan
doaj   +1 more source

Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge

Applied Sciences, 2019
Damping ratios associated with non-structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Javier Fernando Jiménez-Alonso, Jorge Pérez-Aracil, Alejandro Mateo Hernández Díaz, Andrés Sáez   +3 more
doaj   +1 more source

The design of glued laminated timber footbridge structure according to Eurocodes [PDF]

Facta Universitatis. Series: Architecture and Civil Engineering, 2006
The paper presents the conceptual design of the footbridge made of laminated wood. The supporting system of the main bearing elements is made of the laminated wood in the system of arch with three joints and the bridge deck is made of the composite ...
Stojić Dragoslav, Cvetković Radovan, Stojić Nikola   +2 more
doaj   +1 more source

Static Assessment of Hybrid Double‐Lap Bolted Joints With Additively Manufactured 316L Plates

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The present study examines the static response and evaluates the accuracy of design standards and selected literature‐based design criteria in estimating the load capacity of the inner plates of double‐lap shear bolted connections in single‐ and double‐bolt configurations.
Hasan Almuhanna, Giacomo Torelli, Luca Susmel   +2 more
wiley   +1 more source

Experimental Tests and Numerical Analyses for the Dynamic Characterization of a Steel and Wooden Cable-Stayed Footbridge

Infrastructures, 2023
Vibrations are an issue of increasing importance in current footbridge design practice. More sophisticated footbridges with increasing spans and more effective construction materials result in lightweight structures and a high ratio of live load to dead ...
Vanni Nicoletti, Simone Quarchioni, Luca Tentella, Riccardo Martini, Fabrizio Gara   +4 more
doaj   +1 more source

Understanding the 2024 Summer Riots in the UK: Three Case Studies

Journal of Community &Applied Social Psychology, Volume 36, Issue 2, March/April 2026.
ABSTRACT The wave of riots in England in summer 2024 constituted the biggest wave of disorder in the country for more than a decade. These were followed by swift policy responses, based on assumptions about the events and the participants, before any detailed empirical investigation had been carried out.
John Drury, Roger Ball, Julius Cesar Alejandre, Niamh Hart, Katherine R. K. Saunders, Yasemin Gülsüm Acar, Linda Bauld, Dominic Cox, Sharon Cox, Carina Hoerst, Mike Hope, Susan Michie, Fergus Neville, Evangelos Ntontis, Matt Radburn, Stephen Reicher, Clifford Stott, Anne Templeton, Sara Vestergren, Rosie Wild   +19 more
wiley   +1 more source

Quantization of infinitesimal braidings and pre‐Cartier quasi‐bialgebras

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract In this paper, we extend Cartier's deformation theorem of braided monoidal categories admitting an infinitesimal braiding to the nonsymmetric case. The algebraic counterpart of these categories is the notion of a pre‐Cartier quasi‐bialgebra, which extends the well‐known notion of quasi‐triangular quasi‐bialgebra given by Drinfeld.
Chiara Esposito, Andrea Rivezzi, Jonas Schnitzer, Thomas Weber   +3 more
wiley   +1 more source