Abstract
Data examination regarding historical earthquakes in Indonesia has revealed that damages occurred mostly in non-engineered buildings. Many non-engineered buildings have serious design and construction deficiencies in using concrete of inadequate quality and have poor steel reinforcement detailing especially in their beam-column joints. These joints require an effective strengthening technique which is simple to install. This paper presents steel plates to reinforce concrete beam-column joints through numerical studies. The finite element model was developed using ABAQUS. The FEM results were validated by comparisons with previous experimental tests. For this purpose, two RC beam-column joints were analyzed, including original standard beam columns and non-standard steel detailing strengthened with steel plates. The comparison of the results from numerical model indicated that steel plates could increase lateral strength, ductility, energy dissipation and increase the shear strength of the joints.
Highlights
An earthquake in Indonesia on a few years ago caused many non-engineered buildings suffered slight or heavy structural damage
Haunch retrofit solution was studied for retrofitted joints through numerical. This method showed that there is no critical shear occured in RC frame joint, but the haunch retrofit cause an increase in shear [4]
The specimens were used in this study are named as HBK-1NA and HBK-3A
Summary
An earthquake in Indonesia on a few years ago caused many non-engineered buildings suffered slight or heavy structural damage. Steel prop and crub were studied for retrofitted reinforced concrete beam-column joints with experimental This retrofit was used for strengthening of undamaged joints, because the shear stress and number of cracks at the panel zone were reduced. The maximum peak and load were incease 73% [5] Most of these studies have a good result for beam-column joint, which have a difference technique application. The author perform further analysis of the interior beam-column joint using with steel plates in non-engineered buildings with numerical modeling. The purposes this research are the steel strip plate can be the alternative stiffener which effectively strength, increase the shear strength, and easy in implementation of the beam column joint and comparing the test results experimental that had been studied previously with numerical modeling
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