Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction
In the commonly used cantilever construction method, the construction is greatly affected by the linearity and stress control, and the failure of linearity and stress control will lead to the deformation of the bridge. To solve this problem, the study carried out finite element analysis modeling of...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2025-03-01
|
| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/134516/PDF/29_1k.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850059026658754560 |
|---|---|
| author | Yingying Zhou |
| author_facet | Yingying Zhou |
| author_sort | Yingying Zhou |
| collection | DOAJ |
| description | In the commonly used cantilever construction method, the construction is greatly affected by the linearity and stress control, and the failure of linearity and stress control will lead to the deformation of the bridge. To solve this problem, the study carried out finite element analysis modeling of large-span prestressed concrete continuous rigid bridge, and measured the creep coefficient by creep test to determine the model parameters. The experimental results show that. When the self weight of concrete is 1.10γ. At that time, the deflection variation at the cantilever end of the main beam reached its maximum value near the mid span and side span merging sections, which were 8.6 mm and 9.7 mm, respectively. In the max cantilever state, increasing the concrete capacity decreases the compressive stress at the upper and lower edge of the cross-section to 1.18 MPa and 1.24 MPa, respectively. In the bridge-forming state, increasing the concrete deadweight results in a decrease in the normal stress at the upper and lower edges of the bridge to 1.24 and 1.27, respectively, while the normal stress at the lower edge of the cross-section remains unchanged. The creep modification model obtained from the creep test is able to predict the deformations and stresses of the cantilevered construction of a continuous rigid bridge with a more accurate prediction. |
| format | Article |
| id | doaj-art-fec3fda224234efab6401a6737da577a |
| institution | DOAJ |
| issn | 1230-2945 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj-art-fec3fda224234efab6401a6737da577a2025-08-20T02:50:59ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452025-03-01vol. 71No 1https://doi.org/10.24425/ace.2025.153345Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever constructionYingying Zhou0https://orcid.org/0009-0005-8330-4345Henan Institute of Construction Technology, Zhengzhou, 450064 ChinaIn the commonly used cantilever construction method, the construction is greatly affected by the linearity and stress control, and the failure of linearity and stress control will lead to the deformation of the bridge. To solve this problem, the study carried out finite element analysis modeling of large-span prestressed concrete continuous rigid bridge, and measured the creep coefficient by creep test to determine the model parameters. The experimental results show that. When the self weight of concrete is 1.10γ. At that time, the deflection variation at the cantilever end of the main beam reached its maximum value near the mid span and side span merging sections, which were 8.6 mm and 9.7 mm, respectively. In the max cantilever state, increasing the concrete capacity decreases the compressive stress at the upper and lower edge of the cross-section to 1.18 MPa and 1.24 MPa, respectively. In the bridge-forming state, increasing the concrete deadweight results in a decrease in the normal stress at the upper and lower edges of the bridge to 1.24 and 1.27, respectively, while the normal stress at the lower edge of the cross-section remains unchanged. The creep modification model obtained from the creep test is able to predict the deformations and stresses of the cantilevered construction of a continuous rigid bridge with a more accurate prediction.https://journals.pan.pl/Content/134516/PDF/29_1k.pdfcantilever constructionlinear controllong span bridgerigid frame bridgestress control |
| spellingShingle | Yingying Zhou Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction Archives of Civil Engineering cantilever construction linear control long span bridge rigid frame bridge stress control |
| title | Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction |
| title_full | Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction |
| title_fullStr | Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction |
| title_full_unstemmed | Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction |
| title_short | Pre-camber control of large-span prestressed concrete continuous rigid-frame bridges under cantilever construction |
| title_sort | pre camber control of large span prestressed concrete continuous rigid frame bridges under cantilever construction |
| topic | cantilever construction linear control long span bridge rigid frame bridge stress control |
| url | https://journals.pan.pl/Content/134516/PDF/29_1k.pdf |
| work_keys_str_mv | AT yingyingzhou precambercontroloflargespanprestressedconcretecontinuousrigidframebridgesundercantileverconstruction |