Results 21 to 30 of about 776 (186)

Flexural behavior of 60 m UHPC pre-stressed box girder

Magazine of Civil Engineering, 2022
In recent years, an emerging technology of Ultra High Performance Concrete (UHPC) has become popular in the construction industry and has been applied in many countries around the world.
Nguyen Van Tu, Mai Viet Chinh
doaj   +1 more source

Study on Shear Lag Effect of Composite Box Girder Bridge with Corrugated Steel Webs

Chemical Engineering Transactions, 2017
The corrugated steel webs composite box girder bridge is a new bridge structure with corrugated concrete webs with fold effects, which can replace traditional concrete webs. Compared with traditional concrete web box girder, the application of steel webs
Xu Dong
doaj   +1 more source

Comparative Study on Dynamic Response of Deck Pavement of Two Kinds of Box Girder Bridges under Moving Loads

Shock and Vibration, 2019
The objective of this study is to analyse the difference of dynamic response of the deck pavement between a box girder bridge with corrugated steel webs and a concrete web box girder bridge.
Chundi Si, Xin Su, Enli Chen, Zhanyou Yan   +3 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

Simulation-Based Tracking Test and Optimization of Large-Tonnage Box Girder Transport with Trolley on an Erected Bridge

Advances in Civil Engineering, 2022
In the construction of large-tonnage box girder, the construction load of box girder transport is generally greater than the operating load in highway industry; therefore, it is a crucial task to carry out accurate simulation and optimization on bearing ...
Lei Wang, Zhong-da Lv, Ai-min Xu, Fei Wang, Xin-long Dong   +4 more
doaj   +1 more source

Experimental Study and Numerical Analysis of Hydration Heat Effect on Precast Prestressed Concrete Box Girder

Buildings
Large-span precast prestressed concrete box girders have been widely used in bridge construction near or across the sea. However, this would easily lead to a hydration heat problem, including large initial tensile stress and concrete cracks during the ...
Tianyu Wang, Jinbiao Cai, Qian Feng, Weizhong Jia, Yongchao He   +4 more
doaj   +1 more source

Dynamic Properties Comparison of 1D, 2D, and 3D Model for Concrete Box-Girder Bridge of 40-meter Span

Journal of the Civil Engineering Forum, 2022
Concrete box-girder structure is considered the thin-walled structure, undergoing deformation and forces, as well as having structural rigidity in three dimensional directions.
Wira Sucitra Ibrahim, Akhmad Aminullah, Ali Awaludin, Bambang Suhendro, Bambang Supriyadi, Renga Rao Krishnamoorthy   +5 more
doaj   +1 more source

Effect of Shear Deformation at Segmental Joints on the Short-Term Deflection of Large-Span Cantilever Cast Prestressed Concrete Box Girders

Buildings, 2023
The excessive deflection of large-span cantilever cast prestressed concrete (LCCPC) box girders has always been a complex problem to be solved in bridge engineering.
Jie Liu, Xiangyu Huang, Juanjuan Chen, Qiaoyun Wu   +3 more
doaj   +1 more source

Covariance Structure Modeling of Engineering Demand Parameters in Cloud‐Based Seismic Analysis

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Probabilistic seismic demand modeling aims to estimate structural demand as a function of ground motion intensity—a critical stage in seismic risk assessment. Although many models exist to describe the structural demand, few consider the covariance among engineering demand parameters, potentially overlooking a key factor in improving the ...
Archie Rudman, Enrico Tubaldi, Roberto Gentile, John Douglas   +3 more
wiley   +1 more source

Research Progress on Shear Characteristics and Rapid Post-Disaster Construction of Narrow-Width Steel Box–UHPC Composite Beams

Buildings
The narrow-width steel box girder is an important type of steel–concrete composite bridge structure, which is usually composed of reinforced concrete wing plates, narrow steel boxes partially injected with concrete, and shear connectors that promote ...
Yunteng Chen, Jiawei Xu, Peilong Yuan, Qiang Wang, Guanhua Cui, Xulin Su   +5 more
doaj   +1 more source