The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges
Unlike earth-anchored suspension bridges, self-anchored suspension bridges (SASBs) involve a special construction stage, namely, suspender tensioning, in which the tensioning force and sequence are crucial and complicated. Against this background, an example bridge A, a SASB with a steel-concrete co...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6619924 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849306086448824320 |
|---|---|
| author | Hongmei Tan Zhujian Hou Zhou Qiu Junlin Ji Dahan Chen |
| author_facet | Hongmei Tan Zhujian Hou Zhou Qiu Junlin Ji Dahan Chen |
| author_sort | Hongmei Tan |
| collection | DOAJ |
| description | Unlike earth-anchored suspension bridges, self-anchored suspension bridges (SASBs) involve a special construction stage, namely, suspender tensioning, in which the tensioning force and sequence are crucial and complicated. Against this background, an example bridge A, a SASB with a steel-concrete composite beam, is introduced in detail. Using MIDAS finite element software, a suspender tensioning scheme is formulated based on a combination method of the unstrained state method and graded tension method (the USGT method), in which a suspender is tensioned according to its unstrained length. By analyzing the bending moment change of the beam and deflection of the main cable throughout the entire construction process, a “high-to-low” suspender tensioning sequence is proposed that also involves symmetrical tensioning from the main towers to the midspan or the anchor positions. In the optimized construction process, the deviation and stress of the main towers are controlled well, thereby ensuring the safety of the main beam and main towers in the construction process. |
| format | Article |
| id | doaj-art-2d03c67f41174105b8d20afd2b10303b |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-2d03c67f41174105b8d20afd2b10303b2025-08-20T03:55:12ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66199246619924The USGT Method for Suspender Tensioning of Self-Anchored Suspension BridgesHongmei Tan0Zhujian Hou1Zhou Qiu2Junlin Ji3Dahan Chen4Mountain Bridge and Materials Engineering Research Center of Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaCMCU Engineering Co., Ltd., Chongqing 400074, ChinaXiamen Municipal Engineering Design Institute Co., Ltd., Xiamen, ChinaUnlike earth-anchored suspension bridges, self-anchored suspension bridges (SASBs) involve a special construction stage, namely, suspender tensioning, in which the tensioning force and sequence are crucial and complicated. Against this background, an example bridge A, a SASB with a steel-concrete composite beam, is introduced in detail. Using MIDAS finite element software, a suspender tensioning scheme is formulated based on a combination method of the unstrained state method and graded tension method (the USGT method), in which a suspender is tensioned according to its unstrained length. By analyzing the bending moment change of the beam and deflection of the main cable throughout the entire construction process, a “high-to-low” suspender tensioning sequence is proposed that also involves symmetrical tensioning from the main towers to the midspan or the anchor positions. In the optimized construction process, the deviation and stress of the main towers are controlled well, thereby ensuring the safety of the main beam and main towers in the construction process.http://dx.doi.org/10.1155/2021/6619924 |
| spellingShingle | Hongmei Tan Zhujian Hou Zhou Qiu Junlin Ji Dahan Chen The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges Advances in Civil Engineering |
| title | The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges |
| title_full | The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges |
| title_fullStr | The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges |
| title_full_unstemmed | The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges |
| title_short | The USGT Method for Suspender Tensioning of Self-Anchored Suspension Bridges |
| title_sort | usgt method for suspender tensioning of self anchored suspension bridges |
| url | http://dx.doi.org/10.1155/2021/6619924 |
| work_keys_str_mv | AT hongmeitan theusgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT zhujianhou theusgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT zhouqiu theusgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT junlinji theusgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT dahanchen theusgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT hongmeitan usgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT zhujianhou usgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT zhouqiu usgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT junlinji usgtmethodforsuspendertensioningofselfanchoredsuspensionbridges AT dahanchen usgtmethodforsuspendertensioningofselfanchoredsuspensionbridges |