Study on Finite Element Model of the Prefabricated Reinforced Concrete Beam‐Column Joints with Grouted Sleeves

Abstract

Based on the monotonic tensile test of grouted sleeve specimens conducted, this paper uses multifactor regression analysis to construct the equivalent constitutive relationship of grouted sleeve specimens under uniaxial tension. The study based on this constitutive relationship of grouted sleeves and the effect of bond and slip between steel and concrete were considered. The prefabricated reinforced concreted beam-column joints with grouted sleeves were presented with finite element software ABAQUS. The seismic behavior of prefabricated reinforced concreted beam-column joints with grouted sleeves under low-frequency cyclic loading was then investigated. In addition, parametric studies via finite element analysis were performed to examine the influence of various parameters on the strength and energy dissipation capacity of the specimens. The simulation results show that plastic deformation was mainly observed near the beam-column interface; the hysteretic curve of this joint was plump. The test results showed that good energy dissipation and displacement ductility capacities can be achieved. The error of yield load between the numerical simulated and experimental result was 7.11%, the error of peak load was 6.88%, the error of ultimate load was 3.76%, and the error of displacement ductility was 7.84%. Results showed that the calculated results obtained in the paper agree well with test results from the references. The finite element model adopted in this paper can reflect the seismic behavior of the prefabricated reinforced concrete beam-column joints with grouted sleeves by using equivalent constitutive relation.

Experimental study on tensile mechanism of UHPC grouted sleeve splice

“…An accurate constitutive model of grouted sleeve splice will increase the efficiency of structural design [26]. In terms of efficient finite element calculation, the solid element of a grouted sleeve splice can be replaced by a truss element utilizing a constitutive model [27]. Haber and Saiidi [28] confirmed that a constitutive model can be used to simplify the finite model of columns.…”

“…A statistical method using SPSS software was proposed to fit the load-deformation model of grouted sleeve splice. Luo [23] used this method to fit 26 groups of specimens and obtain the constitutive model of grouted sleeve splice. Then they verified this model with a finite element analysis of beam-column joints, and their results showed a good agreement with the test results.…”

Finite Element Analysis on the Rack of the JC-17B Mobile Lifting Jack

“…Among them, the rack is an important component, especially the mechanical characteristics of the rack play an important role in the working performance of the entire equipment. At present, the structural design and optimization of mechanical equipment have moved from previous experience, analogy, and static design to modeling, optimization, and dynamic design [3][4][5][6][7]. Therefore, the Pro/E, ANSYS and other modern engineering software platforms have been applied in this article to conduct mechanical analysis of rack on the JC-17B mobile lifting jack, and the optimization design of rack on the JC-17B mobile lifting jack has been completed, for the future of all types of mobile lifting jack development, technological transformation and equipment renewal provides a reliable basis for the design.…”