Results 31 to 40 of about 800 (165)

Influence of Blasting Vibration on Young Concrete Bridge: A Case Study of Yesanhe Super Large Bridge

Shock and Vibration, 2017
Influence of blasting vibration on young concrete structure is an important issue in the field of hydropower engineering, transportation, and so forth. Based on influence of blasting excavation on concrete pouring progress of box girder in nearby Yesanhe
Ming Chen, Jun Zhang, Wenbo Lu, Peng Yan, Ke Deng   +4 more
doaj   +1 more source

Large‐scale tests of 50‐year‐old prestressed concrete bridge girders

Structural Concrete, EarlyView.
Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo, Pierclaudio Savino, Donato Sabia, Antonino Quattrone, Fabio Biondini, Gianpaolo Rosati, Mattia Anghileri, Bernardino Chiaia   +7 more
wiley   +1 more source

Railway Bridge Using Small Post-Tensioned Concrete Box Girder

The Baltic Journal of Road and Bridge Engineering, 2012
A girder depth is the critical parameter for rapid construction of bridge and clearance limitation in urban area such as high-density residential district.
Inkyu Rhee
doaj   +1 more source

Optimal structural design method for reinforced concrete column in buildings with high floor heights using a genetic algorithm

Structural Concrete, EarlyView.
Abstract Globally, there is a growing trend toward taller, larger, and more structurally diverse buildings that require expansive interior spaces. Rapid technological advancements have surged the demand for data centers, while the expansion of e‐commerce has increased logistics volumes, driving the need for large‐scale warehouses.
Han Yong Lee, Byeung‐Kuy Jung, Byung Kwan Oh   +2 more
wiley   +1 more source

Decision Analysis of a Reinforcement Scheme for In-Service Prestressed Concrete Box Girder Bridges Based on AHP and Evaluation of the Reinforcement Effect

Buildings, 2022
Prestressed concrete girder bridges are widely used worldwide due to their mature construction technology, economical cost, and low maintenance. After a certain number of years of service, prestressed concrete girders inevitably suffer from deterioration
Haikuan Liu, Jie Li, Junfeng Zhang, Dongyuan Pang   +3 more
doaj   +1 more source

Sensitivity study on accuracy and relevant parameters in numerical modeling of internal tendon breaks

Structural Concrete, EarlyView.
Abstract This study investigates the numerical modeling of internal tendon breaks in prestressed concrete structures and evaluates the key parameters affecting accuracy. A combined approach is followed, involving global sensitivity analysis via the Elementary Effects Method and subsequent model calibration using experimental data from distributed fiber‐
Aeneas Paul, David Sanio, Peter Mark
wiley   +1 more source

Optimal Design of Segment Storage and Hoisting of Precast Segmental Composite Box Girders with Corrugated Steel Webs

Buildings, 2023
To optimize the segment storage and hoisting plan of precast segmental composite box girders with corrugated steel web bridges, China’s first precast segmental composite girder bridge with corrugated steel webs is taken as the background.
Qigang Song, Wenqin Deng, Duo Liu, Huiteng Pei, Zongqing Peng, Jiandong Zhang   +5 more
doaj   +1 more source

Parametric study of concrete box-girder footbridges

Journal of Construction Engineering, Management & Innovation, 2018
[EN] This paper presents a study of the parametric variability of post-tensioned concrete box-girder pedestrian bridges. SAMO2 algorithm is used for the parametric study. This algorithm combines SA with a mutation operator, to find the economic solutions.
Yepes, V., Alcalá-González, Julián, García-Segura, Tatiana, Pérez-López, E.   +3 more
openaire   +2 more sources

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

Structural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Experimental and Numerical Study on Shear Performance of a Full-Scale Thin-Walled Retard-Bonded Prestressed Concrete Box Girder

Buildings
In order to produce long-span precast bridge members and reduce the transport pressure of precast members, the lightweight design of bridge components has become a key area of research.
Liya Jia, Yihang Yan, Shaoxiang Zhong, Jiongyi Zhu   +3 more
doaj   +1 more source