Abstract:STaking the hoisting construction of precast components at liuzaogang north region in Shanghai S3 Highway - Section 1 as an example, in view of its close proximity to the existing structure, multi-level bridge structure、multiple types of bridge precast components and narrow hoisting Venue, by optimizing the hoisting Technical Scheme of construction, in virtue of BIM 3D simulation technology, scientifically and reasonably plan the overall installation sequence of precast components and optimize the disadvantageous hoisting working condition under the pier, the problem of precast component installation in the complex environment adjacent to the existing structure is solved,it can provide reference for the construction of similar projects。