Results 41 to 50 of about 180 (145)

Innovation and modernization of Gabčíkovo lock chambers

Structural Concrete, Volume 26, Issue 4, Page 4015-4029, August 2025.
Abstract From 2019 to 2023, extensive innovation and modernization took place at the lock chambers of the Gabčíkovo waterworks to increase the safety and intensity of the water transport. The waterworks is located on the Danube River about 60 km southeast of Bratislava—the capital of Slovakia.
Miloš Zich, Michael Trnka, Ondřej Šimek   +2 more
wiley   +1 more source

Dynamic Test of Negative Stiffness Damped Outrigger With Damping Amplification

Earthquake Engineering &Structural Dynamics, Volume 54, Issue 4, Page 1141-1155, 10 April 2025.
ABSTRACT This paper proposed a novel negative stiffness damped outrigger with damping amplification (NSDO‐DA) through a smart combination of an L‐shape lever, a precompressed disc spring brace (DSB), and a viscous damper. A theoretical model of the NSDO‐DA considering nonlinear adaptive negative stiffness, damping amplification of nonlinear viscous ...
Meng Wang, Yuji Koetaka, Fei‐Fei Sun, Chao Liu, Satish Nagarajaiah, Yosuke Ashida, Xiu‐Li Du   +6 more
wiley   +1 more source

EFFECT OF USING SLURRY INFILTRATED FIBER CONCRETE ON THE BEHAVIOR OF REINFORCED CONCRETE CORBELS

Journal of Engineering and Sustainable Development, 2021
This paper experimentally presents the behavior and strength of slurry infiltrated fiber concrete (SIFCON) corbels. The program included 3 specimens in which steel fiber volume fractions were varied (6,8, and 10) %. All specimens had a constant shear span to depth ratio (a/d=0.7) and were of the same width, length, and thickness.
Hajer K. Alqaraghouly, Nibras N. Abdul-Hameed   +1 more
openaire   +1 more source

Colourful Urban Birds: Bird Species Successful in Urban Environments Have More Elaborate Colours and Less Brown

Ecology Letters, Volume 28, Issue 4, April 2025.
Urban bird communities are more colour‐diverse after accounting for species richness. We also found that bird species that do well in urban environments are less likely to be brown and exhibit more elaborate colours, but not higher sexual dichromatism. ABSTRACT Rapidly expanding urbanisation presents significant challenges to wildlife.
Juan Diego Ibáñez‐Álamo, Kaspar Delhey, Lucía Izquierdo, Mihai Valcu, Bart Kempenaers   +4 more
wiley   +1 more source

Behavior of Reinforced Concrete Corbels Strengthened with CFRP Strips Subjected to Monotonic and Repeated Loading

Tikrit Journal of Engineering Sciences
Concrete corbels are short cantilevers subjected to monotonic and repeated loads. Repeated loads generally negatively affect the concrete structural members' strength as they decrease the resistance to external loads.
Enas S. Ibrahim, Mazin B. Abdulrahman, Yasser I. Yahia, Belal Alsubari, Hayder S. Abdulaali, Shagea Alqawzai   +5 more
doaj   +1 more source

Shear Strengthening of Corbels with Carbon Fibre Reinforced Polymers (CFRP)

Materiales de Construccion, 2010
Corbels constitute what are known as “disturbed” regions in concrete structures, where typical shear failure may be anticipated on the grounds of small shear span-to-depth ratios.
S. Ahmad, A. Shah, A. Nawaz, K. Salimullah   +3 more
doaj   +1 more source

Robustness of Dry‐Assembled Precast Wall and Coupled Wall‐Frame High‐Rise Structures With Voided Prestressed Slabs

The Structural Design of Tall and Special Buildings, Volume 34, Issue 1, January 2025.
ABSTRACT Precast concrete structures are recognized among the structural typologies that may mostly suffer from progressive collapse as a consequence of local unpredicted damage, also due to past accidents occurred in buildings employing old precast technologies neglecting the basic robustness criteria and characterized by poorly detailed and/or ...
Bruno Dal Lago, Krunal Gajera, Paolo Martinelli   +2 more
wiley   +1 more source

Numerical simulation of double-sided concrete corbels internally-reinforced with GFRP bars

Composites Part C: Open Access, 2020
Three-dimensional (3D) finite element (FE) models were developed in this study to simulate the nonlinear structural behavior of double-sided concrete corbels internally-reinforced with glass-fiber reinforced polymer (GFRP) bars.
Ayman Abu-Obaida, Tamer El-Maaddawy, Bilal El-Ariss   +2 more
doaj   +1 more source

Performance Analysis of Self‐Resetting Pier–Beam Node of Sheet–Pile Bridge Based on Vehicle–Bridge Coupling Vibration

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
To address the issue of excessive stress at the secondary pier–beam joints of multispan continuous sheet–pile bridges caused by large longitudinal displacements, this study proposes a novel structural configuration incorporating prestressed self‐resetting reinforcement at the pier–beam connection.
Xu Shizhan, Wang Gang, Tang Jiangping, Lu Yinfeng, Li Chengyu, Walid Oueslati   +5 more
wiley   +1 more source

Finite Element Performance Assessment of RC Columns Strengthened With Hybrid NSM Steel and FRP Bars Subjected to Static and Repeated Loads

Modelling and Simulation in Engineering, Volume 2025, Issue 1, 2025.
A numerical finite element analysis has been investigated in this paper to examine the performance of strengthened reinforced concrete (RC) columns with near‐surface mounted (NSM) fiber‐reinforced polymer (FRP) and steel bars under static and repeated loads using the finite element software ABAQUS/Standard.
Nibras Atiaa Al-Shimarry, Marco Bonopera
wiley   +1 more source