Cable force estimation of cables with small sag considering inclination angle effect
Cable force estimation is essential for security assessment of cable-stayed bridges. Cable force estimation methods based on the relationship between cable force and frequency have been extensively studied and used during both construction phase and service phase. However, the effect induced by inclination angle of the cable is not included in the establishment of frequency-cable force relationship as horizontal cable model is normally employed. This study aims to investigate the influence of the inclination angle on vibration-based cable force estimation and provide practical formulas accordingly. Firstly, numerical examples of fixed-fixed and hinged-hinged cables are simulated to illustrate the necessity of considering the inclination angle effect on the modal parameters and cable force estimation for inclined cables with small sag. Then practical formulas considering the inclination angle effect to estimate the cable force of fixed-fixed and hinged-hinged cables via the fundamental frequency are established accordingly. For the inclined cables with unknown boundary conditions, the coefficients reflecting boundary condition are predicted via the practical formulas for fixed-fixed and hinged-hinged cables. And the cable force considering the influence of inclination angle and unknown boundary conditions is obtained by iteration method. Finally, numerical examples are presented to demonstrate the effectiveness of the proposed method.
- Record URL:
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/26625407
-
Supplemental Notes:
- © 2021 Wen-Yu He, Fan-Cheng Meng, and Wei-Zin Ren.
-
Authors:
- He, Wen-Yu
- Meng, Fan-Cheng
- Ren, Wei-Xin
- Publication Date: 2021-4
Language
- English
Media Info
- Media Type: Web
- Features: References;
-
Serial:
- Advances in Bridge Engineering
- Volume: 2
- Issue Number: 1
- Publisher: Springer Nature
- ISSN: 2662-5407
- Serial URL: https://aben.springeropen.com/
-
Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Bridge cables; Bridge design; Dynamic loads; Hinged structures; Mathematical models; Simulation; Vibration
- Subject Areas: Bridges and other structures; Design; Highways;
Filing Info
- Accession Number: 01773704
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 4 2021 4:56PM