Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)

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Mechanical Analysis and Application of Lattice-Type High-Pile Cap Tower Crane Foundation During Construction in Complex Geological Conditions

Authors
Yueqiang Dai1, 2, *, Zhengyan Wu1, 2, Shifei Hu1, 2, Meiling Zheng1, 2
1China Construction Sixth Division Construction & Development Co., Ltd., Tianjin, China
2China Construction Sixth Engineering Division Co., Ltd., Tianjin, China
*Corresponding author. Email: daiyq_1989@163.com
Corresponding Author
Yueqiang Dai
Available Online 28 July 2025.
DOI
10.2991/978-94-6463-793-9_10How to use a DOI?
Keywords
Tower Crane; Lattice-type High-pile Cap; Soft Soil; Finite Element Analysis; Stability Design
Abstract

This study investigates the stability and mechanical performance of a lattice-type high-pile cap foundation for an STT323 tower crane in soft soil conditions at a Shanghai office complex. The foundation, elevated 10 m with a 5.5 m×5.5 m cap, employs lattice columns (cross-sectional side length: 480 mm) composed of angle steel and batten plates. A finite element model was developed to evaluate deformation and stress under ±X/Y directional loads, incorporating a maximum geometric imperfection of 475 mm (4.75% offset ratio). Results demonstrate a maximum cap displacement of 6.26 mm, compressive stress of 112 MPa, and tensile stress of 22.3 MPa, with stress ratios between 7.4% and 37.3%, all within safety limits. Stress concentrations were observed at column bases, while horizontal and diagonal bracing effectively mitigated lateral deformation. On-site monitoring confirmed compliance with permissible deformation thresholds during crane operation. This work provides a practical framework for designing lattice-type high-pile cap foundations in similar geotechnical projects.

Copyright
© 2025 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 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
Series
Atlantis Highlights in Engineering
Publication Date
28 July 2025
ISBN
978-94-6463-793-9
ISSN
2589-4943
DOI
10.2991/978-94-6463-793-9_10How to use a DOI?
Copyright
© 2025 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  - Yueqiang Dai
AU  - Zhengyan Wu
AU  - Shifei Hu
AU  - Meiling Zheng
PY  - 2025
DA  - 2025/07/28
TI  - Mechanical Analysis and Application of Lattice-Type High-Pile Cap Tower Crane Foundation During Construction in Complex Geological Conditions
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 94
EP  - 102
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_10
DO  - 10.2991/978-94-6463-793-9_10
ID  - Dai2025
ER  -