Abstract:Under the advocation of the concept of green and low-carbon development, the application of bridge prefabrication and assembly technology in urban bridge construction is more and more extensive. The experimental study of this project relies on the actual prefabrication assembly bridge project of Shanghai Lianggang Avenue, and the precast pier reinforcement and cover beam are anchored by steel bellows. In order to verify that the anchorage and connection of steel bellows embedded along the edge can provide reliable bonding and anchoring ability, the pullout test research on the bonding and sliding mechanical behavior of steel bellows and steel bars is carried out considering the factors such as different reinforcement anchorage lengths, pouring and grouting technology, etc. and the mechanical behaviors such as damage development process, failure mode, force and displacement curve , etc. is studied ,and summarized to provide technical support for the application of practical projects.
