en.Wedoany.com Reported - Lotte E&C (롯데건설) announced on the 23rd that its "Steel Pipe Girder Method," developed to prevent bridge construction collapse accidents, has been designated as Disaster Safety New Technology No. 2026-4 by the Korea Disaster Prevention Association (한국방재협회).

This method was jointly developed by Lotte E&C (롯데건설), Daeryun Construction (대련건설), Yooshin (유신), and the Industry-Academia Cooperation Group of Chung-Ang University (중앙대). Its core technology involves using a steel pipe-shaped support platform to quickly correct the lateral displacement, or lateral bending, of the girder. By adjusting the length of the steel pipe in a screw-like manner, the bent girder can be pushed or pulled back into place, thereby ensuring structural safety.

In recent years, the trend toward larger bridges has become evident, with increased length and height of concrete girders, raising the risk of overturning accidents during construction. Existing methods connect girders through concrete pouring, which involves complex procedures and makes it difficult to correct bending deformations that have already occurred. In contrast, the Steel Pipe Girder Method allows for the immediate connection of steel pipes to secure the structure after girder installation and enables real-time correction of lateral displacement, thereby improving construction safety.

Lotte E&C stated that this method eliminates the concrete pouring process, reducing the time spent working at heights, and can shorten the corresponding construction period by up to 87%.

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