Evaluation Method for Ultimate Flexural State of Prestressed Precast Reinforced Concrete Beam–Column Connection with Debonded Partial Tendon

In this paper, a prestressed precast reinforced concrete (PC) beam–column connection incorporating posttensioned debonded partial tendons is introduced for PC frame structure. Compared with the conventional cast-in-place frames and many previously proposed connections frames, has advantage of self-centering low damage in strong earthquakes. addition, can reduce posttensioning demand further site labor during construction repair. order to establish performance evaluation method ultimate flexural limit connection, an analytical model was developed accurately reflect deformation compatibility force equilibrium conditions beam column members, as well tendons. Based on this, iterative direct methods strength connections, strains tendons, were developed. The verified by cyclic loading test subassemblages. It concluded that sufficiently accurate simple be applied engineering design, helpful guarantee low-damage characteristics against earthquake.