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RISS 인기검색어
- 검색키워드
- 저자 : Arizu Sulaiman (검색결과 4 건)
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Mahmood Md. Tahir,Mohd Azman Hussein,Arizu Sulaiman,Shahrin Mohamed 한국강구조학회 2009 International Journal of Steel Structures Vol.9 No.2
A component method has been introduced by Steel Construction Institute to predict the moment resistance of partial strength connection. The design philosophy is taken directly from Eurocode 3 with strength checks on bolts, welds, and steel which have been modified to comply with BS 5950-1:2000. The accuracy of the method however needs to be validated with the experimental tests especially for hot-rolled sections other than typical British Section (BS). Six experimental tests on beamto- column connections have been carried out for Flush End-Plate (FEP) connections consisting of variable parameters such as thickness of end-plate, size and number of bolts, size of columns, and beams. The tests were set-up using local hot-rolled steel sections known as Perwaja Section (PS) for beams and columns instead of typical British Section (BS). The strength of materials for end-plate, column and beam sections were tested for tensile strength and used in predicting the moment resistance for component method. The moment versus rotation of the test results were plotted and compared with the moment resistance derived from component method. The study concluded that the moment resistance of the tested flush end-plate connections was higher than the predicted moment resistance from component method which showed good agreement between the two moments. The study also concluded that the tested FEP connections met the requirements and criteria of partial strength connections. A component method has been introduced by Steel Construction Institute to predict the moment resistance of partial strength connection. The design philosophy is taken directly from Eurocode 3 with strength checks on bolts, welds, and steel which have been modified to comply with BS 5950-1:2000. The accuracy of the method however needs to be validated with the experimental tests especially for hot-rolled sections other than typical British Section (BS). Six experimental tests on beamto- column connections have been carried out for Flush End-Plate (FEP) connections consisting of variable parameters such as thickness of end-plate, size and number of bolts, size of columns, and beams. The tests were set-up using local hot-rolled steel sections known as Perwaja Section (PS) for beams and columns instead of typical British Section (BS). The strength of materials for end-plate, column and beam sections were tested for tensile strength and used in predicting the moment resistance for component method. The moment versus rotation of the test results were plotted and compared with the moment resistance derived from component method. The study concluded that the moment resistance of the tested flush end-plate connections was higher than the predicted moment resistance from component method which showed good agreement between the two moments. The study also concluded that the tested FEP connections met the requirements and criteria of partial strength connections.
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Wind-Moment Design of Semi-Rigid Un-braced Steel Frames using Cruciform Column (CCUB) Section
Shek Poi Ngian,Mahmood Md Tahir,Arizu Sulaiman,Tan Cher Siang 한국강구조학회 2015 International Journal of Steel Structures Vol.15 No.1
The design of un-braced frames using wind-moment method (WMM) with cruciform column (CCUB) section as verticalmember is presented here. Steel frames on a regular grid with approximately equal column spacings in the y-y and z-z directionusing UC/UB sections has resulted in minor axis controlled the design, which leads to a significant loss in performance. Theuse of CCUB sections with equal Iy and Iz warrants an equal behaviour in both directions whilst ensuring that both the majorand minor axis beam to column connections remain straightforward. The study has been conducted on 2-bay and 4-bay planeframes with 2, 4, 6 and 8 storey heights, and two different load cases are considered: minimum wind load in conjunction withmaximum gravity load and vice versa. Structural design optimization of steel frames was conducted on the selection of steelsections for beam and column. The selection was carried out in such a way that the steel frame had the minimum weight whilethe performance of the structure was within the limitations described by BS EN 1993-1-1: 2005. Significant column weightsavings (between 17-66%) was achieved by using CCUB section in the design, as compared to conventional UC sections.
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Mohammad Ali Asaad,Noor Nabilah Sarbini,Arizu Sulaiman,Mohammad Ismail,Ghasan Fahim Huseien,Zaiton Abdul Majid,Pandian Bothi Raja 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.63 No.-
Influence of novel green Elaeis guineensis (EG) and silver nanoparticles (AgNPs) on the improved corrosion resistance of mild steel against acute acid attack is reported. Such EG/AgNPs were synthesized from palm oil leaf extracts and used as inhibitor with varying contents to inspect the feasibility of modifying the acid (1 M HCl(aq)) mediated anti-corrosion behaviour of mild steel. The structural and morphological properties of the extracted EG/AgNPs inhibitor (in powder form) were determined using TEM, XRD, and EDX analyses. Furthermore, the acid solution exposed mild steel specimens were characterized via FESEM, EDX, AFM, XRD, weight loss, polarization and electrochemical impedance measurements. Mild steel surface was found to adsorb the EG/AgNPs and formed a protective film advantageous for inhibiting the acid attack. Steel specimen incorporated with 10% (v/v) of EG/AgNPs inhibitor revealed maximum inhibition efficiency of 94.1%.
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Faisal Amsyar,Cher Siang Tan,Arizu Sulaiman,Shahrin Mohammad 한국강구조학회 2023 International Journal of Steel Structures Vol.23 No.4
An experimental and numerical study was performed to evaluate the structural behaviour of the semi-rigid composite cold-formed steel beam-to-column joints, in terms of its strength and stiffness. Five composite joints were subjected to different diameters of rebar (8 mm and 10 mm) with varying types of reinforcing bar (high-strength rebar, mild-strength rebar and high-strength steel wire mesh) and different thicknesses of concrete slab (100 mm and 125 mm). Isolated joint tests were dispensed to all specimens by using 100 kN capacity of hydraulic jack to induce axial point load. Non-linear finite element models were developed by using ABAQUS software for the joint configurations. A 3-D stress option with an eight-node linear brick element and no hourglass controls (C3D8) was proposed to simulate all steel and concrete components as it provided well analysis prediction with further simulation beyond ultimate load-bearing capacity. Good correlation was observed from comparison of both experimental and numerical results with strength ratios that ranged from 0.92 to 0.98. Ultimate strength was obtained by increasing the diameter of steel reinforcement, thickness of concrete slab and using high-strength steel reinforcing bar instead of mild-steel reinforcing bar and high-strength steel wire mesh.
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