Advanced Steel Construction

Vol. 20, No. 2, pp. 144-148 (2024)




Gao-Hong Ye 1, Zhi-Xiang Yu 1, *, Dong Liu 2, Huan He 1, Lin-Xu Liao 1 and Lei Zhao 1

1 Southwest Jiaotong University, Chengdu, China

2 HUASHI Engineering Technology (Shenzhen) Co, Ltd., Shenzhen, China

*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 8 April 2024; Revised: 24 May 2024; Accepted: 5 June 2024




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Due to the complex connection of components and significant initial defects in the formwork structure, the utilization of a direct analysis method to design the formwork structure can effectively address the shortcomings of traditional first-order linear design methods in formwork design standards. Taking a practical engineering project as an example, a direct analysis method for the construction of a SCP structure was proposed. Based on its design results, a comparative analysis with the traditional first-order linear design method was conducted to clarify the influence of considering initial defects and second-order effects on support reaction force, deformation, and stress ratio. This provided a reference basis for the design of SCP structures. Based on the results, cross-sectional optimization was carried out on the key components of the SCP structure. Following optimization, the stress ratio distribution of the structure was found to be more reasonable, and a 25.63% reduction in steel consumption was achieved, thus demonstrating the feasibility of the direct analysis method in the design and optimization of the SCP structure.



Self-climbing forming and working platform, Direct analysis method, Initial defect, Optimization


[1] Sai Gaddam Mohan and Achuthan Aravindan, “A comparative study on newly emerging type of formwork systems with conventional type of form work systems”, Materials Today: Proceedings 33, 736-740, 2020.

[2] Liu Dong, Fan Zhaofu, Zhang Yanzhi, Dong Jianju and Yuan Sheng, "Application of SCP Platform System in the Construction of Tower Core Tube in Xi’ an International Trade Center”, Construction Technology, 48(02), 67-73, 2019.

[3] Sowndharya Ar. and Vidhya Ar., “Analysing advanced formwork system for high rise building construction”, International Research Journal of Modernization in Engineering Technology and Science, 4(6), 2131-2139, 2022.

[3] GB 51210-2016, Unified standard for safety of scaffold in construction, China Architecture & Building Press, Beijing, 2016.

[4] JGJ 459-2019, Technical standard for self-climbing integrated scaffolding and formwork equipment with steel platform, China Architecture & Building Press, Beijing, 2018.

[5] JGJ 195-2018, Technical standard for the hydraulic climbing formwork engineering, China Architecture & Building Press, Beijing, 2018.

[6] GB50017-2017, Standard for design of steel structures, China Architecture & Building Press, Beijing, 2017.

[7] Chan Suilai and Liu Yaopeng, “Second-order Direct Analysis for Steel Frame Structure by NIDA”, Construction Technology, 41(20), 61-64+98, 2012.

[8] Ganping Shu, Liu Wei, and Chan Siulai, “Theoretical research on direct analysis method for semi-rigid steel frames”, Journal of Building structure 35(08), 142-150, 2014.

[9] Wang Fawu, Liu Yaopeng, Zhou zhihua and Chan Suilai. “Optimization of semi-rigid steel frames with second-order direct analysis”, Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS. 10, 2018.

[10] Ding Zhixia, Liu Yaopeng, Du Zhaolei and Chan Siulai. “The application of direct analysis method in progressive collapse”, Steel Construction (Chinese & English), 35(2), 13-28, 2020.

[11] Zhao Lei, Qi Xin, Zheng Tenghu, Yu Zhixiang and Xu Hu, “Influence of Initial Geometric Imperfection on the Stability Bearing Capacity of a Cross-Story Plane Truss”, Progress in Steel Building Structures, 24(04), 66-73, 2022.

[12] Yu Zheng, Xue Suduo and Wang Lijun, “Application of direct analysis design method in cable structure design”, Construction Technology, 48(20), 1-4, 2019.

[13] El Sayed Ahmed Yehia, Darwish Mohamed and Nassar Khaled, “Design and Constructability of Novel Extendable Arched Steel Truss Falsework”, Journal of Construction Engineering and Management, 147(3), 04020187, 2021.

[14] Hong Geon-Ho and Jung Seong-Won, “Development of auto-climbing formwork system for composite core walls”, Journal of Asian Architecture and Building Engineering, 21(2), 511–520, 2022.