Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment
The bridge of Shanghai Metro Line 10 over Metro Line 6 is a U-shaped concrete single-box double-cell concrete box beam continuous bridge. A novel method is applied to construct the asymmetric cantilever prefabricated and assembled continuous bridge due to the limited construction space and the compl...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/13/3/591 |
| _version_ | 1797613071236071424 |
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| author | Haijun Zhou Xuan Qi Zhidong Liu Wuqiang Xue Jiuchun Sun Jian Liu Songbai Gui Xia Yang |
| author_facet | Haijun Zhou Xuan Qi Zhidong Liu Wuqiang Xue Jiuchun Sun Jian Liu Songbai Gui Xia Yang |
| author_sort | Haijun Zhou |
| collection | DOAJ |
| description | The bridge of Shanghai Metro Line 10 over Metro Line 6 is a U-shaped concrete single-box double-cell concrete box beam continuous bridge. A novel method is applied to construct the asymmetric cantilever prefabricated and assembled continuous bridge due to the limited construction space and the complex environment. Four mechanical state control methods are applied during the T-shape structure construction process: tensioning pre-stressed steel strand, jacking by the axial force servo system, adjusting the leg reaction force, and setting the auxiliary leg. Auxiliary measures such as the compressive column, side-span counterweight, and temporary pre-stressing are also taken into consideration. The finite element method simulations are performed to measure effects of the four control methods during the construction process. The front leg force of the bridge erection machine and the deflection of the bridge are then monitored. It was deduced that the simulated and measured values of the cantilever T-shape structure are controlled within the limit range during the construction process. |
| first_indexed | 2024-03-11T06:50:46Z |
| format | Article |
| id | doaj.art-95816f8dc8c441458a51bb444dd7e466 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T06:50:46Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-95816f8dc8c441458a51bb444dd7e4662023-11-17T10:01:23ZengMDPI AGBuildings2075-53092023-02-0113359110.3390/buildings13030591Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex EnvironmentHaijun Zhou0Xuan Qi1Zhidong Liu2Wuqiang Xue3Jiuchun Sun4Jian Liu5Songbai Gui6Xia Yang7Institute of Urban Smart Transportation & Safety Maintenance, Shenzhen University, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen 518060, ChinaTengda Construction Group Co., Ltd., Shanghai 318050, ChinaTengda Construction Group Co., Ltd., Shanghai 318050, ChinaShenzhong Link Management Center, Zhongshan 528454, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen 518060, ChinaInstitute of Urban Smart Transportation & Safety Maintenance, Shenzhen University, Shenzhen 518060, ChinaThe bridge of Shanghai Metro Line 10 over Metro Line 6 is a U-shaped concrete single-box double-cell concrete box beam continuous bridge. A novel method is applied to construct the asymmetric cantilever prefabricated and assembled continuous bridge due to the limited construction space and the complex environment. Four mechanical state control methods are applied during the T-shape structure construction process: tensioning pre-stressed steel strand, jacking by the axial force servo system, adjusting the leg reaction force, and setting the auxiliary leg. Auxiliary measures such as the compressive column, side-span counterweight, and temporary pre-stressing are also taken into consideration. The finite element method simulations are performed to measure effects of the four control methods during the construction process. The front leg force of the bridge erection machine and the deflection of the bridge are then monitored. It was deduced that the simulated and measured values of the cantilever T-shape structure are controlled within the limit range during the construction process.https://www.mdpi.com/2075-5309/13/3/591continuous bridgeasymmetric loaded cantileverT-shape structureconstruction processfinite element method |
| spellingShingle | Haijun Zhou Xuan Qi Zhidong Liu Wuqiang Xue Jiuchun Sun Jian Liu Songbai Gui Xia Yang Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment Buildings continuous bridge asymmetric loaded cantilever T-shape structure construction process finite element method |
| title | Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment |
| title_full | Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment |
| title_fullStr | Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment |
| title_full_unstemmed | Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment |
| title_short | Asymmetric Cantilever Construction Control of a U-Shaped Box Concrete Continuous Bridge in Complex Environment |
| title_sort | asymmetric cantilever construction control of a u shaped box concrete continuous bridge in complex environment |
| topic | continuous bridge asymmetric loaded cantilever T-shape structure construction process finite element method |
| url | https://www.mdpi.com/2075-5309/13/3/591 |
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