Supervision Points on Jacking up Steel-Box Ruction of Self-Anchored Suspension Bridge

The paper introduces a method for jacking up steel-box used in paired-tower and double-cable self-anchored suspension bridge-Sanchaji Xiangjiang River Bridge which locates in Changsha,Hunan province and whose main span is 328 meters.The method consists of detailed jacking up construction method,confirmation of inner-installed four temporary pier jack-up value,and jack-up safety simulation analysis.The author proposes coordinating the four temporary pier jack-up value and prapping up steel-box girder equably.