A5015996310- Structural Engineering and Vibration Analysis
- Railway Engineering and Dynamics
- Structural Load-Bearing Analysis
- Mechanical stress and fatigue analysis
- Structural Health Monitoring Techniques
- Structural Behavior of Reinforced Concrete
- Civil and Structural Engineering Research
- Concrete Corrosion and Durability
- Concrete Properties and Behavior
Changsha University of Science and Technology
2024
Hunan Institute of Science and Technology
2024
This paper proposes a forward iterative algorithm designed for determining the fabrication geometry of steel girder in cable-stayed bridges during segment installation process. The expression control parameters and geometric dimensions is deduced based on geometry. Based equivalent plane spatial stay cables, this establishes to simulate construction process bridges, employing unstressed cable length as calculation parameter. programmed into finite element method software, enabling precise...
Abstract Steel‐concrete composite box girders offer notable advantages such as high stiffness, excellent torsional performance, and light self‐weight, making them prevalent in large‐span bridges, particularly cable‐stayed configurations. However, a persistent challenge arises from the shear lag effect concrete slab within flanges induced by shearing interactions between webs flanges. Limited attention has been devoted to investigating experimental theoretical aspects of long‐span bridges...
To investigate the shear-lag effect in main girder of a composite twin-box cable-stayed bridge during construction, full-bridge model and local spatial were established using finite element software MIDAS/Civil ABAQUS, respectively, for span Chibi Yangtze River Bridge Hubei Province, China, as an engineering example.On this basis, under multiple typical construction conditions was analysed through numerical simulation, accuracy verified by field measurements at site.Results demonstrate that...
The construction process of composite cable-stayed bridges varies, and it closely affects the finished bridge. This study takes Chibi Yangtze River Highway Bridge, which is world's largest-span bridge, as an example in determining optimal scheme girder erection during Six schemes were proposed for comparison analysis. On basis satisfying objective principles stress safety principle, economic qualitative quantitative methods used to analyze schemes. refined model segment was established by...
To solve the problem of steel longitudinal beam being unable to match precise installation main due torsional deformation during process a composite twinbox girder cable-stayed bridge, torsion correction method through multipoint jacking adjustment transverse beams is proposed.Based on constrained calculation theory for closed thin-walled members, differential equation and its general solution were established.Then, angle force each at zero angles obtained.In addition, local refined model by...