Innovative bridge construction: horizontal bridge rotation above East Rail Line under NEC

Overview

This seminar will be held on 20 March 2025 from 19.00 to 20.30 HK time. The seminar is supported by the Department of Construction and Quality Management, School of Science and Technology, Hong Kong Metropolitan University.

The ongoing Fanling Bypass Eastern Section project comprises construction of two sections of vehicular bridges above the existing East Rail Line (ERL). The project team of Contract No. ND/2019/05 adopted an innovative method to address engineering challenges in such a way that two heavy (7000 and 4500 tonnes), long-span (138m and 68m) vehicular concrete bridges were constructed parallel to the ERL by “balanced cantilever method” first and then horizontally rotated about their piers to their permanent positions over the ERL in two mid-nights on 29 September and 3 November 2024 respectively.  

This innovative endeavour was meticulously designed to address the limitations inherent in traditional bridge construction methods, which frequently result in extended project durations and escalating costs. By harnessing a "Pioneering Rotating Viaduct Design," the project team had effectively minimised disruptions to vital train services while optimising construction efficiency.

This "First-of-Its-Kind" project exemplified engineering innovation and modern construction technology. It also underscored the critical importance of comprehensive site assessments and thorough kinematic analyses to ensure the safe and efficient rotation of bridge sections. The project team advocates for extensive analysis of site conditions and load effects, ensuring that the bridge rotation technology is effective and safe for the railway and all surrounding structures.

This approach not only streamlines the construction process but also substantially reduces traffic impact by preventing extensive railway traffic disruptions. Under the NEC collaborative approach, client, consultants, contractors, and the MTRCL were able to work together seamlessly, promoting mutual trust and cooperation to overcome challenging site constraints.

The project also exemplifies a remarkable "Collaborative Effort" among local, China and Singapore engineers, fostering knowledge transfer and driving innovation in construction methodologies. This strategic approach inspires future engineering developments, promoting innovative solutions to overcome construction challenges arising from complex site constraints.

Quota: 150
Registration deadline: 14 March 2025

Note:

• Registration will be confirmed on a first-come-first-served basis, with priority given to the members of all organising institutions.
• Only successful applicants will receive a confirmation e-mail.
• Attendance certificates will be provided after 2 weeks of the event only if attendees attend the whole event.
• The above is subject to change without prior notice

Adverse weather arrangements:

The event will be cancelled/rescheduled to another date in the case of a red or black rainstorm signal, or typhoon signal no. 3 or above is in force by the Hong Kong Observatory at or after 16:00. It may also be cancelled because of safety or other reasons.

Disclaimer:

The Institution of Civil Engineers (Hong Kong Association) shall not under any circumstances be liable or otherwise for death, any injury, any damage to, loss or destruction of property or otherwise, in any such case arising from any accident or mishap, whether during or after this event, in preparation for it, travelling to or from it or otherwise.

Programme