iosr-JMCE   Volume-20 ~ Issue-4 ~ July – Aug. 2023

Abstract: Application of MSC in the performance measurement Company X is expected able to describe the vision, mission, and strategy in a clear and measurable work-frame, so we can measure the rate of achievement of strategy implemented. Analytical Hierarchy Process method, it can be seen that the KPI with the most influences or contribution in achieving company's objectives (voice of customer dan voice of business) at all level is: Quality Perspective at level 2 with the global weight 0,453, Percentage of Benchmarks Achieved at level 3 with the global weight 0,347, Percentage of Target Achieved at level 4 with the global weight 0,347 dan Mean Time First Stoppage After Preventive Maintenance (MTFS After PM) at level 5 with the global weight 0,111. From the result of weighing of KPI's it is found that the most influencing KPI's at all levels are Quality Perspective, Percentage of Benchmarks Achieved, Percentage of Target Achieved, and Mean Time First Stoppage After Preventive Maintenance.

Keywords: Maintenance Scorecard, Analytical Hierarchy Process, Measure the performance

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Pp. 226-240. DOI 10.1108/17410400710731437
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Abstract: This research paper describes a numerical study conducted to evaluate the stresses and deflections in sandwich beams under transverse mechanical loading. The study includes simulations of simply supported three-layer (00/core/00) and (900/core/900), five-layer (00/900/core/900/00), and seven-layer (00/900/00/core/00/900/00) sandwich beams using ANSYS software. The results are compared with those reported in literature. The study presents the normalized transverse displacement, in-plane normal stresses, and transverse shear stress for different aspect ratios. The simulations use an eight node SHELL 281 element, which is well-suited for analysing layered structures. The accuracy of the numerical results is confirmed by comparing them to existing literature results, which demonstrate good agreement. Overall, this research contributes to a better understanding of the behaviour of sandwich beams under transverse mechanical loading..

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Abstract: This literature review presents an overview of studies conducted on the performance-based characterization of bituminous binders. Bituminous binders play a crucial role in the performance and durability of asphalt pavements. Understanding their properties and behavior is essential for developing high-quality and long-lasting road surfaces.The review begins by discussing the traditional characterization methods for bituminous binders, such as penetration, softening point, and viscosity tests. It then highlights the limitations of these tests in capturing the true performance characteristics of binders, particularly in terms of their resistance to rutting, fatigue cracking....

Keywords : Bituminous binders, Performance-based characterization, Asphalt pavements, Traditional characterization methods, Performance-based tests, Performance grading systems

[1]. Laukkanen, Olli-Ville &Soenen, Hilde &Pellinen, Terhi&Heyrman, Serge & Lemoine, Geert. (2014). Creep-Recovery Behavior Of Bituminous Binders And Its Relation To Asphalt Mixture Rutting. Materials And Structures. 48. 10.1617/S11527-014-0464-7.
[2]. Cui, Pei & Zhang, Hong & Wu, Shaopeng. (2014). Influence Of High-Temperature Volatilization On Performance Of Bituminous Binder. Key Engineering Materials. 599. 164-167. 10.4028/Www.Scientific.Net/KEM.599.164.
[3]. Riviera, Pier &Santagata, Ezio &Baglieri, Orazio&Alam, Muhammad. (2015). Evaluation Of Rutting Properties Of Bituminous Binders By Means Of Single Shear Creep-Recovery (SSCR) Tests And Correlation With Mixture Performance. RILEM Bookseries. 11. 745-756. 10.1007/978-94-017-7342-3_60.
[4]. Remisova, Eva &Zatkalíková, Viera. (2016). Evaluation Of Bituminous Binder In Relation To Resistance To Permanent Deformation. Procedia Engineering. 153. 584-589. 10.1016/J.Proeng.2016.08.196.
[5]. Bueno, Moises & García, Alvaro &Partl, Manfred. (2019). Applications Of Strain-Rate Frequency Superposition For Bituminous Binders. Applied Rheology. 25. 10.3933/APPLRHEOL-25-65980

Abstract: Extended End-Plate steel beam-to-column connections are widely used as moment resisting connections. Most of these connections are considered semi-rigid connections. This paper presents the behavior of Extended End-Plate (EEP) steel connections under cyclic loading by developing a three-dimensional nonlinear finite element (FE) model. ABAQUS software is utilized to develop the FE model and perform numerical analysis. Numerical modelling of the EEP connection was several parameters including: components geometry, material properties, load pattern, boundary condition, interaction and contact between connected parts, and analysis type. The FE models of EEP connections....

Keywords : Extended End Plate connection; beam-column connection; Finite element modelling; Cyclic load; Moment –rotation hysteretic curve

[1]. Wang, M., Et Al., Numerical Study On Seismic Behaviors Of Steel Frame End-Plate Connections. Journal Of Constructional Steel Research, 2013. 90: P. 140-152.
[2]. Abdalla, K., G. Abu-Farsakh, And S. Barakat, Experimental Investigation Of Force-Distribution In High-Strength Bolts In Extended End-Plate Connections. Steel And Composite Structures, An International Journal, 2007. 7(2): P. 87-103.
[3]. Bahaz, A., Et Al., Analysis Of The Behaviour Of Semi Rigid Steel End Plate Connections. MATEC Web Conf., 2018. 149: P. 02058.
[4]. Noferesti, H. And M. Gerami, Cyclic Behavior Of Bolted Stiffened End-Plate Moment Connections For Different Bolt Pretensioning Levels: An Experimental Study. Shock And Vibration, 2023. 2023.
[5]. Luo, L., Et Al., Parametric Analysis And Stiffness Investigation Of Extended End-Plate Connection. Materials (Basel), 2020. 13(22).

Abstract: This study aims to determine the satisfaction model of pedestrian movement in the pedestrian area based on age in the city of Manado. The data used is from the results of a pedestrian traffic survey using a simple random sampling method, and the analysis technique used is Partial Least Square (PLS). The study results with the PLS approach show that the pedestrian movement satisfaction model based on age fits the R-square criteria. Aspects of management, technical aspects of transportation and facilities, and service quality affect pedestrian satisfaction. The management aspect has the most significant direct effect on pedestrian satisfaction and is supported by service quality. Indicators of assurance, performance, durability, availability, attention and tangible, reliability, and Aesthetics are dominant constructs in pedestrian satisfaction modeling. Quality of service, the management aspect, significantly influences the satisfaction of pedestrians over 45 years old. In comparison, the Technical aspects of Transportation and Facilities have the most critical influence on service quality for pedestrians under 25 years old.

Keywords : PLS, sidewalks, pedestrian satisfaction, service quality, management aspects, technical aspects

[1]. Lefrandt, L. I. R. (2022). Uji Laikfungsi Jalan Ruas Jalan Nasional Batas Kota Manado-Kota Tomohon STA 7+ 770-STA 26+ 966. Jurnal HPJI (Himpunanpengembangan Jalan Indonesia), 8(2), 113-122.
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[3]. Lutfi, Qurais. Murbayani., Adisasmita, Raharjo. 2009. Faktor-Faktor Internal Dan Eksternal Serta Dampak Pemindahan Terminal Dari Sidangoli Ke Sofifi Propinsi Maluku Utara. Simposium XII FSTPT Universitas Kristen Petra Surabaya
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Abstract: This research was focused on slag based geopolymer concrete with addition of steel fibre in flat slabs systems, to improve concrete properties such as flexural toughness, shear strength, impact characteristics, deflection capacity, stiffness, and concrete ductility. In this paper investigate the effect of steel fiber ratio on punching shear resistance and cracking behavior of reinforced concrete flat slabs and geopolymer concrete flat slabs. A total of 24 slabs were tested in this study.....

Keywords : Geopolymer concrete, Flat slabs, Punching shear, steel fibre, Energy absorption, ductility

[1]. Andersson, J. L. (1963). "Punching Of Concrete Slabs With Shear Reinforcement," Royal Institute Of Technology 8, Stockholm, Sweden, Bull. 212, Pp. 59.
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[4]. Rasha, T. S. M., Amr, B. And Hany, A. (2017). "Effect Of Flexural And Shear Reinforcement On The Punching Behavior Of Reinforced Concrete Flat Slabs," Alexandria Engineering Journal, Vol. 56, Pp. 591–599.
[5]. H. Su, J. Xu, And W. Ren. (2014). "Mechanical Properties Of Ceramic Fiber-Reinforced Concrete Under Quasi-Static And Dynamic Compression," Materials And Design, Vol. 57, Pp. 426–434.

Abstract: Selective Laser Melting (SLM) technology has been widely applied in fields such as material science, aerospace, biomedicine, and industrial production. In particular, the titanium alloy Ti-6Al-4V, due to its outstanding mechanical properties and biocompatibility, has garnered extensive attention. However, the surface roughness produced during the SLM process can significantly influence the performance and application scope of the components. Thus, optimizing the SLM process parameters to achieve the desired surface roughness has become a challenging topic in current research. Given the cost-effectiveness and efficiency of numerical simulation in optimizing SLM, this paper primarily investigates the impact of SLM process parameters on the surface roughness of Ti.......

Key Word: Selective Laser Melting; Ti-6Al-4V, Surface Roughness; Response Surface; Numerical Simulation

[1]. Zuliani R, Balta E C, Rupenyan A, Et Al. Batch Model Predictive Control For Selective Laser Melting[C]//2022 European Control Conference (ECC). IEEE, 2022: 1560-1565.
[2]. Meier C, Penny R W, Zou Y, Et Al. Thermophysical Phenomena In Metal Additive Manufacturing By Selective Laser Melting: Fundamentals, Modeling, Simulation, And Experimentation[J]. Annual Review Of Heat Transfer, 2017, 20.
[3]. Leal R, Barreiros F M, Alves L, Et Al. Additive Manufacturing Tooling For The Automotive Industry[J]. The International Journal Of Advanced Manufacturing Technology, 2017, 92: 1671-1676.
[4]. Singh R, Gupta A, Tripathi O, Et Al. Powder Bed Fusion Process In Additive Manufacturing: An Overview[J]. Materials Today: Proceedings, 2020, 26: 3058-3070.
[5]. Gunasekaran J, Sevvel P, Solomon I J. Metallic Materials Fabrication By Selective Laser Melting: A Review[J]. Materials Today: Proceedings, 2021, 37: 252-256..