According to the conclusion of the 1604th MOTC Ministerial Meeting on Mar. 19, 2015 that conducted an overall review of introducing the concept of bridge life cycle into bridge planning and design, MOTC invited BOHSR to discuss the regulations of the matter on Mar. 31, 2015. On May 1 2015, MOTC asked BOHSR to conduct a general review of the relevant norms of railway bridge safety assessment (such as earthquake resistance and erosion resistance) and reinforcement work based on the concept of bridge life cycle.
The life cycle of the bridge can be broadly divided into stages of planning, design, construction and maintenance. To introduce the concept of bridge life cycle into bridge-related norms, the characteristics and requirements of all phases of the bridge should be taken into account. Then, guidelines for planning, design, construction and maintenance will be set so as to achieve the goal of increasing the service life of bridges and minimizing the total costs of bridge life cycles.
Due to the mutual influence of all stages of the bridge life cycle, BOHSR simultaneously reviewed and revised the regulations of both the design phase and maintenance phase. On May 11, 2016, BOHSR entrusted CECI Engineering Consultants Inc. to implement the assignment. The assignment includes: 1. To fully review and revise the “Regulations for Rail Bridge Designs”, and 2. to formulate the “Regulations for the Detection and Reinforcement of Railway Bridges (Draft)”. Regulation contents included the existing ministerial “Regulations for the Detection and Reinforcement of the Steel Structures of Railway Bridges” and additional sections for the testing and reinforcement of RC bridges so as to make the norms of the entire life cycle of railway bridges more complete.
In the process of reviewing and revising the draft of the regulations, BOHSR solicited opinions from experts and scholars on relative symposiums to complete the normative draft. Then, the initial inspection work of the draft will be implemented according to the ministerial technical standard mechanism. On Nov. 11, 2017, the final report and normative draft (inclusive of narratives) have been completed and have already been submitted to MOTC for secondary review.