Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)

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Long-span Unbonded Prestressed Cast-in-place Hollow Floor Structure Construction Technique

Authors
Meng Lei1, Jincheng Luo2, *, Yanqing Guo3, Wenlu Cui4
1Wuhan Institute of Technology, Department of Infrastructure and Maintenance, Wuhan, 430205, China
2Hubei Huangzhou Railway Station Economic Development Zone Management Committee, Huangzhou, 438011, China
3HuBei Radio & TV University, Wuhan, 430000, China
4The Construction and Administration of Water Resources in Ebei Area, Hubei, Wuhan, 430000, China
*Corresponding author. Email: 1165645040@qq.com
Corresponding Author
Jincheng Luo
Available Online 30 December 2023.
DOI
10.2991/978-94-6463-336-8_55How to use a DOI?
Keywords
Unbonded prestressing; Hollow floor; LPM
Abstract

The education and teaching comprehensive building project of Wuhan Institute of Technology covers a construction area of 30,346 m2. According to the functional requirements, the lecture hall is a large-span cast-in situ concrete structure with post-tensioning unbonded prestressed hollow floor technology. The filling material of the hollow floor is LPM (the main material is polystyrene foam). In the construction process, targeted measures have been formulated in the aspects of material selection and construction technology, especially effective measures have been adopted in the aspects of anti-floating of hollow plates, linear fixation of prestressed tendons, cyclic grading tensioning of prestressed tendons, anti-rust of prestressed tendons, etc. The above measures have achieved good results through tensile testing and physical inspection of the main structure after the removal of the template. Effectively ensure the construction quality. Using this technology, the floor weight and beam structure size are greatly reduced, and good economic benefits are obtained, which is in line with the requirements of building industry policy.

Copyright
© 2023 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 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)
Series
Advances in Engineering Research
Publication Date
30 December 2023
ISBN
10.2991/978-94-6463-336-8_55
ISSN
2352-5401
DOI
10.2991/978-94-6463-336-8_55How to use a DOI?
Copyright
© 2023 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  - Meng Lei
AU  - Jincheng Luo
AU  - Yanqing Guo
AU  - Wenlu Cui
PY  - 2023
DA  - 2023/12/30
TI  - Long-span Unbonded Prestressed Cast-in-place Hollow Floor Structure Construction Technique
BT  - Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)
PB  - Atlantis Press
SP  - 475
EP  - 482
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-336-8_55
DO  - 10.2991/978-94-6463-336-8_55
ID  - Lei2023
ER  -