Comments

Gents, It is my professional opinion as the consultant engineer and also as the erector of the girders that the new bracing requirement is not suitable for the NU beams. It seems the idea is originated from the steel girders and now implemented for the NU girders. Read more

From the point of view of a Structural Engineer, I support this proposal because bracing is necessary to mitigate risks of something happening on site, it can ensure the stability of girders in case they are hit by a backhoe, gust wind, rotation during a deck pour, especially erection over traffic. Read more

1. drawing show wind pressure designed for is 395pa, how about area that has higher pressure? 2. any reason there has to be end bracing and intermediate bracing? How much safety factor is provided? 3. without bracing, how much is the safety factor? Is the bracing only designed for wind load? Read more

Please see ORBA feedback (comments, questions, and recommendations) in regards to MTO TCP Notice. No. 000-0085 on: Minimum Bracing Requirements for NU Girders Installation. Supporting attachments where applicable are provided for information and reference. Read more