STUDY OF PARAMETERS AFFECTING HYSTERETIC BEHAVIOR OF INTERIOR BEAM-COLUMN JOINT

• Main Author: Soliha Ariening, Annisa
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70774
• Institution: Institut Teknologi Bandung

The building collapse hierarchy is an important factor in the design of a building. Where in the open frame building collapse hierarchy, the joints must be stronger than beams and columns. To get a strong joint, it must have good hysteretic behavior. These behaviors include shear strength and joint deformability performance. Therefore, it is necessary to do further research to find out how certain parameters affecting the hysteretic behavior of the interior joint. These parameters consist of the concrete compressive strength, reinforcing yield strength, joint hoops, and axial load. To analyze these parameters, a research methodology was carried out in the form of statistical analysis derived from a set of databases of previous research results. The statistical analysis in this study used the Pearson Product Moment (PPM) method with the calculation result in the form of a correlation coefficient (CC). There are three methods can be used in calculating the joint shear strength. There are SNI 2847: 2019, Softened Strut-and-Tie, and Park and Paulay Model. To calculate the joint shear strength, we can use SNI 2847: 2019. The role of joint hoops in the SNI provisions is to confine the core concrete as in the column. So that joint hoops will be difficult to construct in the field. Then the joint shear strength can also be calculated using Softened Strut-and-Tie (SST). The role of joint hoops in the SST model act as a tie. So that the need for joint hoops can be reduced. Another alternative to calculate the joint shear strength is the Park and Paulay Model. Then an evaluation of the accuracy of the three methods was also carried out. From the results of database accumulation, which is calculated statistically for specimens experienced beam failure, the parameters affecting the joint shear strength are concrete compressive strength with moderate positive correlation, reinforcement yield strength and axial load with high positive correlation, and joint hoops ratio with moderate negative correlation. Then the parameters affecting the deformability of the joint are the concrete compressive strength has a moderate negative correlation, while the yield strength parameters has a high negative correlation, and the axial load has a moderate negative correlation. Furthermore, for specimens that have failed in joint failure, the parameter affecting the joint shear strength is the concrete compressive strength with high positive correlation. Meanwhile, the joint hoops parameter is very important for specimens that have failed joint failure (JF), because these parameters have an effect in increasing the effective damping ratio (moderate positive correlation). The joint shear strength formula that provides the most accurate estimate is SNI 2847: 2019 with an average Vjh test / Vn of 1,12 and a covariance of 0,20.