In this paper, in case of two-span steel-concrete composite bridges strengthened by external tendons, an analytic expression for the increment of tendon force under external loads is derived using virtual work method for straight and draped external tendons and a new rating factor equation is proposed. Considering the proposed rating factor equation, an analytic procedure has been developed to calculate the number of tendons and the initial tendon force. This method is used to verify a validity and rationality for an existing two-span composite steel-concrete.
|Title of host publication||Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management|
|Number of pages||8|
|Publication status||Published - 2010 Dec 1|
|Event||5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States|
Duration: 2010 Jul 11 → 2010 Jul 15
|Other||5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010|
|Period||10/07/11 → 10/07/15|