Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)

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Key Technology of Prefabrication Construction of Portal Pier Bent Caps with Large Cantilever

Authors
Liang Xiang1, *, Yin Xu1, Lele Chen1
1China Communications Construction Company (CCCC) Second Harbor Engineering Co., Ltd., Wuhan, Hubei, China
*Corresponding author. Email: 393313210@qq.com
Corresponding Author
Liang Xiang
Available Online 28 September 2024.
DOI
10.2991/978-94-6463-514-0_7How to use a DOI?
Keywords
Bridge engineering; Bent caps; Large cantilever; Segmental assembly; U-shell concrete; Construction technique
Abstract

In order to ensure the smooth flow of municipal roads and avoid a large number of demolition and renovation operations, the substructure of the Rama III to Outer Bangkok West Ring Expressway project is designed as a cap beam of portal pier, and the construction adopts the fully-suspended short-line combination method, in which two spans are equipped with large cantilever structures. For portal pier with large cantilever structure, the construction technology of “prefabricated U shell+fully suspended segment assembly + internal cast-in place” is adopted by comparative study. The application results show that this method can realize the construction of portal pier with large cantilever cap beam under complex municipal conditions, and has the advantages of short construction period, small traffic interference and high safety.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
Series
Advances in Engineering Research
Publication Date
28 September 2024
ISBN
978-94-6463-514-0
ISSN
2352-5401
DOI
10.2991/978-94-6463-514-0_7How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Liang Xiang
AU  - Yin Xu
AU  - Lele Chen
PY  - 2024
DA  - 2024/09/28
TI  - Key Technology of Prefabrication Construction of Portal Pier Bent Caps with Large Cantilever
BT  - Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
PB  - Atlantis Press
SP  - 46
EP  - 53
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-514-0_7
DO  - 10.2991/978-94-6463-514-0_7
ID  - Xiang2024
ER  -