Main Span

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 56253 Experts worldwide ranked by ideXlab platform

Zhongpeng Zou - One of the best experts on this subject based on the ideXlab platform.

  • The Advantages of Steel-Concrete Composite Girder in Half-Through Concrete-Filled Steel Tube Bowstring Arch Bridge
    Proceedings of ARCH 2019, 2020
    Co-Authors: Fei Wu, Donghua Xiao, Jiancheng Yuan, Zhicheng Tan, Sheng Zhou, Zhongpeng Zou
    Abstract:

    Based on Wang’Anshi bridge under construction (CFST arch bridge, the suspender cross-girder made of Steel-Concrete composite girder, the Main Span 168 m) as the research object, by monitoring the process of construction, this paper discusses the advantages brought by Steel-Concrete composite girder in concrete-filled steel tube bowstring arch bridge, from such aspects as the construction cost, construction difficulty, in-process structural stress control, Maintenance in later period. The results show that steel-concrete composite girders are highly industrialized and effectively reduce site construction difficulties; avoid the cracking problem of concrete cross girder and the Maintenance cost is effectively reduced. In conclusion, the steel-concrete composite suspender girders are remarkably better than the prestressed concrete suspender girder.

Jian Liang - One of the best experts on this subject based on the ideXlab platform.

  • Technical Development of Long Span Concrete Filled Steel Tube Arch Bridges in China
    Proceedings of ARCH 2019, 2020
    Co-Authors: Tingmin Mou, Bikun Fan, Yicheng Zhao, Jian Liang
    Abstract:

    In the past 30 years, China’s concrete-filled steel tube (CFST) arch bridges have developed rapidly, and more than 450 CFST arch bridges have been built so far. With construction of the 1st Hejiang Yangtze River Bridge with 530 m Main Span, the construction of Hejiang Yangtze River Highway Bridge in Sichuan (Span combination 80.5 + 507 + 80.5 m) and the 3rd Pingnan Bridge in Guangxi (Main Span 575 m), the Span of CFST arch bridges has reached Main Span larger than 500 m. In order to solve a series of technical problems of CFST arch bridges, Chinese scholars have carried out a number of theoretical studies and technical practices, and formed a series of technical achievements of long-Span CFST arch bridges: new structural system of Main arch has been developed, new technology of Main arch using composite structure with full steel tube has been put forward, and independent unit system of Main arch has been developed. New structures such as composite Main arch transverse brace, rectangular arch rib inner diaphragm, wind-resistant and vibration-reducing series cables and long-term cable anticorrosive suspension system have been established. The unified theory and constitutive relationship of CFST capacity have been established. The non-linear stability analysis of long-Span CFST arch bridge has been put forward. The series technical achievements have established a solid foundation for the development of large Span CFST arch bridges and reinforced concrete arch bridges with rigid skeleton.

Liang Jian - One of the best experts on this subject based on the ideXlab platform.

Huang Zheng - One of the best experts on this subject based on the ideXlab platform.

Ke Jun - One of the best experts on this subject based on the ideXlab platform.

  • Closing of the Cable-stayed Wuhu Yangtze River Bridge Middle Main Span of Steel Truss Beam
    China Railway Science, 2001
    Co-Authors: Ke Jun
    Abstract:

    The Wuhu Yangtze River bridge is a cable stayed one with two towers and two cables. The Main Span measures 312 m. Without ready experience in doing the closing of the bridge, the full staff of the work team took all efforts and succeeded in closing the bridge with an error of 0 075 mm within 5 days, which is an unprecedented event in the bridge construction history in China. This victory provides valuable experience for the closing of similar bridges in the future. The paper describes in detail the features of the closing of the Main Span, the construction plan and the detailed closing method and procedure.