Design And Engineering Practice Of Segmental Assembling In Humen Second Bridge

Segmental assembling is an advanced construction method. It meets modern construction philosophy such as energy saving, environment protection, fast operation and high efficiency. And it also brought us great social and economical benefit. It has been applied more and more in recent domestic bridge projects.The development of this bridge type and research status at home and abroad were summarized in this paper. Based on engineering optimization design method, elaborate analysis and design was carried out for Humen Second Bridge project.Based on collecting research and essays, it determined the structural style, pre-fabricated and assembling method. Then it determined the size of the structure, structural partition, then it designed the joint, prestressing system and No.0 block according to the characteristic of segmental assembling. After that it summarized the way to compute, verified the standard, calculated the structure to the static behavior. In the end it summarized key technique and process requirements with the visit experience in construction site. The analysis results show the design plan are secure and advanced.Hopefully this paper will be useful for similar projects later.