Capacity Analysis of Variation Emulative Precast Beam-Column Joints with Finite Element Method

Abstract

The construction of multistory buildings is currently increasing rapidly. Optimal construction methods are needed particularly in the construction of high-rise buildings. There are two construction methods for multistory buildings that are currently developing, cast-in-place and precast methods. Beam-column joint is important things in both construction methods. In precast systems, the element components and planning affect the structural performance and overall design. Beam-column joint capacity and performance of a plastic hinge relocation method needs to be tested. Testing of the cruciform beam-column joint was carried out using the nonlinear finite element method and compared with the results of laboratory test data. There are 8 beam-column joint models with 2 of them not using plastic hinge relocation method. The results of beam-column joint capacity analysis from manual and finite element methods at yield condition generally give smaller values with a difference of 0,17% - 8,32% than the reference data. While at the ultimate condition, the beam-column joint capacity of the finite element analysis produces a greater value with a difference of 0,52% - 13,83%. The yielding of reinforcement in each model occurs in the predetermined relocation area especially for CBJ90, CBJU and CBJR models.