e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science ( Peer-Reviewed, Open Access, Fully Refereed International Journal ) Volume:04/Issue:05/May-2022 Impact Factor- 6.752 www.irjmets.com RESEARCH ON OPTIMIZING PERFOBOND CONNECTORS Nguyen Manh Truong*1, Nguyen Huu Bao*2, Tran Hoang Tinh*3, Le Vu Dong Thuc*4, Dao Quoc Phu*5, Dong Duc Huy*6 *1,2,3,4,5,6Dong Nai Technology University, Dong Nai 76000, Vietnam ABSTRACT Bonding in composite structures is very important It greatly affects the quality and life of the building Previously, the structures were used such as friction, mechanics, floor anchors most recently, the perfobond connectors The research team wants to simulate the connection model on the beams and analyze it by using the optimal algorithm to find the best bearing capacity for the composite beam structure This study aims to open up a new direction in structural construction Keywords: Coposite, Perfobond, Steel, Optimization I INTRODUCTION The research topic on optimizing perfobond connectors is carried out in this topic With the use of perfobond bonding [1, 2], the study will investigate the working of steel-concrete composite structures in many composite house structures [3, 4], and compare the results with the actual case (using steel and concrete column work independently), from which the judgments are made about the effectiveness of the composite steel structure solution [5] It is expected that the results of this study will serve as a reference for the more widespread use of composite structures in construction Figure 1: Working principle of concrete dowel II RESEARCH CONTENT 2.1 Research Methods - Linear elastic method [6] - Methods of plasticity analysis [7] - Nonlinear elastic method [8] - Hypotheses on deformation and displacement between reinforced concrete column components and profiled steel 2.2 Research models The author will choose an actual cross-section to calculate specific results using the theoretical basis, then compare the simulation results with the ABAQUS program to verify the reliability of the theoretical basis [9] Figure 2: Composite texture 3D shape www.irjmets.com @International Research Journal of Modernization in Engineering, Technology and Science [1261] e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science ( Peer-Reviewed, Open Access, Fully Refereed International Journal ) Volume:04/Issue:05/May-2022 Impact Factor- 6.752 www.irjmets.com 2.3 Build the optimal algorithm Solving problems on computers is usually done in steps: Step 1: Identify the problem Step 2: Select or design an algorithm Step 3: Write the program Step 4: Edit Step 5: Write the document The design moment of the conjugate column is determined as follows: Figure 3: Design moment of conjugate columns In which: (a) excluding the effect P-; (b) including the P- effect III RESULTS AND DISCUSSION 3.1 Stress results will be output in beam cross-sections In sections 1, and 3, stress will be taken at points as shown in the figure corresponding to sections on ABAQUS program: Figure 4: Stress of steel column I and concrete beam www.irjmets.com @International Research Journal of Modernization in Engineering, Technology and Science [1262] e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science ( Peer-Reviewed, Open Access, Fully Refereed International Journal ) Volume:04/Issue:05/May-2022 Impact Factor- 6.752 www.irjmets.com 3.2 Stress of PERFOBOND without algorithm Figure 5: Rebar stress The stress in the region with Perfobond bonding is much greater (red, yellow) than in the unbound region (green, blue), indicating that the bond will bear the force better 3.3 Stress of PERFOBOND using algorithm Figure 6: Stress of PERFOBOND using algorithm 3.4 Interactive diagram of steel column I and reinforced concrete column when there is PERFOBOND connection Figure 7: 3D Interactive Diagram 3-D spatial interaction diagram, it shows the ability to bear longitudinal force and bending moment in directions (oblique bending) of the composite column section Figure 8: 2-D Interactive Diagram www.irjmets.com @International Research Journal of Modernization in Engineering, Technology and Science [1263] e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science ( Peer-Reviewed, Open Access, Fully Refereed International Journal ) Volume:04/Issue:05/May-2022 Impact Factor- 6.752 www.irjmets.com 3.5 Compare results Table 1: Comparison table of ductile resistance moment Moment of resistance to ductility Results M pl Rd N m Difference (%) Perfobond is not optimized Perfobond has been optimized 555152,56 528182,45 0,95 Table 2: Comparison of shear force results perfobond Results Don't use algorithm Using Algorithms Perfobond shear force (N) 95456 10436 IV Difference (%) 9,2 CONCLUSION The author analyzed the behavior of steel column I and concrete column using Perfobond connection Some of the results obtained from the project are as follows: - Constructing the formula for bending resistance moment of steel-concrete composite columns in preengineered industrial buildings using Perfobond connections - Build interactive chart of steel column and concrete column using Perfobond connectors - Simulate steel columns and concrete columns using Perfobond connection by Abaqus program - Analyze areas where stress occurs and areas where stress is not distributed - Stress analysis of Perfobond at locations with maximum and minimum stress When designing Perfobond, attention should be paid to these stress zones - Analyze the sheer force of Perfobond at the positions with the largest and the smallest cutting force When designing Perfobond, attention should be paid to these shear force zones - Analysis of Perfobond stress when using the algorithm - When using the algorithm will be more optimal - Can be applied when changing parameters to save more in texture V [1] [2] [3] [4] [5] [6] [7] [8] [9] REFERENCES Q.-T Su, W Wang, H.-W Luan, and G.-T Yang, "Experimental research on bearing mechanism of perfobond rib shear connectors," Journal of Constructional Steel Research, vol 95, pp 22-31, 2014 S He, Z Fang, Y Fang, M Liu, L Liu, and A S Mosallam, "Experimental study on perfobond strip connector in steel–concrete joints of hybrid bridges," Journal of Constructional Steel Research, vol 118, pp 169-179, 2016 J Zhang, X Hu, L Kou, B Zhang, Y Jiang, and H Yu, "Experimental study of the short-term and longterm behavior of perfobond connectors," Journal of Constructional Steel Research, vol 150, pp 462474, 2018 Y Zou et al., "Shear behavior of perfobond connectors in the steel-concrete joints of hybrid bridges," Journal of Constructional Steel Research, vol 172, p 106217, 2020 S He, P Guan, Q Wang, Z Fang, and A Mosallam, "Investigation on structural performance of perfobond strip connector group in steel-concrete joints," Engineering Structures, vol 242, p 112571, 2021 C Song, E T Ooi, and S Natarajan, "A review of the scaled boundary finite element method for twodimensional linear elastic fracture mechanics," Engineering Fracture Mechanics, vol 187, pp 45-73, 2018 E A de Souza Neto, D Peric, and D R Owen, Computational methods for plasticity: theory and applications John Wiley & Sons, 2011 T Doyle and J L Ericksen, "Nonlinear elasticity," Advances in applied mechanics, vol 4, pp 53-115, 1956 Y Huang, A user-material subroutine incroporating single crystal plasticity in the ABAQUS finite element program Harvard Univ Cambridge, 1991 www.irjmets.com @International Research Journal of Modernization in Engineering, Technology and Science [1264] ... using Perfobond connections - Build interactive chart of steel column and concrete column using Perfobond connectors - Simulate steel columns and concrete columns using Perfobond connection by... short-term and longterm behavior of perfobond connectors, " Journal of Constructional Steel Research, vol 150, pp 462474, 2018 Y Zou et al., "Shear behavior of perfobond connectors in the steel-concrete... analysis of Perfobond at locations with maximum and minimum stress When designing Perfobond, attention should be paid to these stress zones - Analyze the sheer force of Perfobond at the positions with