Field Static Load Test on Kao-Ping-Hsi Cable-Stayed Bridge |
| |
Authors: | I-Kuang Fang Chun-Ray Chen I-Shang Chang |
| |
Affiliation: | 1Professor, Dept. of Civil Engineering, National Cheng Kung Univ., Tainan 701, Taiwan, R. O. C. E-mail: fanglou@mail.ncku.edu.tw 2Doctoral Candidate, Dept. of Civil Engineering, National Cheng Kung Univ., Tainan 701, Taiwan, R. O. C. 3Formerly, Graduate Student, Dept. of Civil Engineering, National Cheng Kung Univ., Tainan 701, Taiwan, R. O. C.
|
| |
Abstract: | Field load testing is an effective method for understanding the behavior and fundamental characteristics of a cable-stayed bridge. This paper presents the results of field static load tests on the Kao-Ping-Hsi cable-stayed bridge, the longest cable-stayed bridge in Taiwan, before it was open to traffic. A total of 40 loading cases, including the unit and distributed bending and torsion loading effects, were conducted to investigate the bridge behavior. The atmospheric temperature effect on the variations of the main girder deflections was also monitored. The results of static load testing include the main girder deflections, the flexural strains of the prestressed concrete girder, and the variations of the cable forces. A three-dimensional finite-element model was developed. The results show that the bridge under the planned load test conditions has linear superposition characteristics and the analytical model shows a very good agreement with the bridge responses. Further discussion of deflection and cable forces of the design specifications for a cable-stayed bridge is also presented. |
| |
Keywords: | Bridges, cable-stayed Finite element method Static loads Load tests Monitoring Taiwan |
|
|