Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction
This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking t...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-12-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147719891561 |
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| _version_ | 1849308753075109888 |
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| author | Guangpan Zhou Aiqun Li Jianhui Li Maojun Duan Zhiyuan Xia Li Zhu Billie F Spencer Bin Wang |
| author_facet | Guangpan Zhou Aiqun Li Jianhui Li Maojun Duan Zhiyuan Xia Li Zhu Billie F Spencer Bin Wang |
| author_sort | Guangpan Zhou |
| collection | DOAJ |
| description | This work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges. |
| format | Article |
| id | doaj-art-1a96568f58e643ba8e070e06fd47c7e8 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2019-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-1a96568f58e643ba8e070e06fd47c7e82025-08-20T03:54:21ZengWileyInternational Journal of Distributed Sensor Networks1550-14772019-12-011510.1177/1550147719891561Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during constructionGuangpan Zhou0Aiqun Li1Jianhui Li2Maojun Duan3Zhiyuan Xia4Li Zhu5Billie F Spencer6Bin Wang7School of Science, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Civil Engineering, Southeast University, Nanjing, ChinaSchool of Civil Engineering, Nanjing Forestry University, Nanjing, ChinaSchool of Civil Engineering, Nanjing Forestry University, Nanjing, ChinaSchool of Civil Engineering, Suzhou University of Science and Technology, Suzhou, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing, ChinaDepartment of Civil and Environmental Engineering, University of Illinois at Urbana–Champaign, Urbana, IL, USASchool of Science, Nanjing University of Science and Technology, Nanjing, ChinaThis work is aimed at studying the mechanics characteristics of the self-anchored suspension bridge with extra-wide concrete girder during girder erection and system transformation. First, the determination and implementation processes of reasonable completion state were introduced briefly, taking the Hunan Road Bridge as the background project, which is the widest concrete self-anchored suspension bridge in China currently. Then, the ANSYS beam-type finite element model and field monitoring data were integrated to investigate the cable system evolutions during system transformation. Finally, the global refined finite element model was established using solid element to consider the shear lag effects in extra-wide girder. The measured data show that the cable displacements in tensioned domains were characterized by weak coherence and contraflexure characteristics. The longitudinal and transverse stresses of extra-wide girder distributed unevenly along transverse direction. The maximum shear lag coefficients of girder at completion state reached to 1.3. Moreover, small transverse compressive stress, or even the transverse tensile stress reaching to 1.80 MPa, appeared in the top plate segments. The measures including the arrangement optimization of transverse prestressed tendons and monitoring point redistribution were given. The research can provide references for the structural designing and safety control of the similar bridges.https://doi.org/10.1177/1550147719891561 |
| spellingShingle | Guangpan Zhou Aiqun Li Jianhui Li Maojun Duan Zhiyuan Xia Li Zhu Billie F Spencer Bin Wang Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction International Journal of Distributed Sensor Networks |
| title | Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction |
| title_full | Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction |
| title_fullStr | Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction |
| title_full_unstemmed | Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction |
| title_short | Test and numerical investigations on the spatial mechanics characteristics of extra-wide concrete self-anchored suspension bridge during construction |
| title_sort | test and numerical investigations on the spatial mechanics characteristics of extra wide concrete self anchored suspension bridge during construction |
| url | https://doi.org/10.1177/1550147719891561 |
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