Research Status of Self-locking Connection Joints in Steel Structure Modular Buildings

10.6919/ICJE.202205_8(5).0051

Xinpeng Tian；Zihou Niu

Steel Structure Module Building ； Node ； Self Locking Connection Node

International Core Journal of Engineering

8卷5期（2022 / 05 / 01）

425 - 429

英文

Steel structure module building can greatly shorten the construction progress, improve the construction quality and reduce the waste of resources through factory prefabrication and on-site installation. Modular steel structure has become a development trend in the future. However, at present, the connection between the upper and lower module units generally adopts bolt connection or welding connection. These connection methods have high requirements for construction time and operation space, and the new self-locking or even detachable nodes can solve this problem, so as to promote the development of modular construction. Therefore, this paper summarizes the self-locking connection nodes and classifies the nodes according to the form of self-locking, which is convenient for people to have a new and convenient understanding of the nodes of modular steel structure. Finally, aiming at the shortcomings of current nodes, node innovation is discussed.

1. Wen Pinhan, Li Zhaowei, Zhang Rui, Hu Lei, Chang Hongfei A prefabricated steel structure pop-up self-locking column connection node [P] Jiangsu Province: CN211447249u, 2020-09-08.
2. Liu Jiadi, Wang Jian, Chen Zhihua A sliding block type modular building self-locking connection node [P] Tianjin: CN212478105u, 2021-02-05.
3. Liu Jiadi, Wang Jian, Chen Zhihua A latch type module building self-locking connection node [P] Tianjin: CN212478104u, 2021-02-05.
4. Chen Zhihua, Liu Jiadi, Wang Xiaodun, Zhang Pengfei Self locking mortise mortise modular building connection joint [P] Tianjin: CN205329865u, June 22, 2016.
5. Zong Liang, Dai Xiaomeng, Ding Yang An unlocking modular steel structure insert self-locking joint [P] Tianjin: CN207314526u, May 4, 2018.
6. Chen Zhihua, Liu Yang, Zhou Ting, Zhong Xu Module building connection node and module building [P] Tianjin: CN208917994u, May 31, 2019.
7. Ding Yang, Dai Xiaomeng, Zong Liang A rotary snap in self-locking connector between modular steel members [P] Tianjin: CN106996145b, March 19, 2019.
8. Gao Yuhang, Wen Pinhan, Wang Yulong, Chang Hongfei A fabricated torsion self-locking column connection joint of steel structure [P] Jiangsu Province: CN211080559u, July 24, 2020.