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Proceedings of

7th International Conference on Advances in Civil, Structural and Environmental Engineering ACSEE 2018

Date
19-Aug-2018
Location
Kuala Lumpur , Malaysia
Authors
14
ISBN
978-1-63248-158-0

5 Articles Published

1. COMPUTER MODELING AND WIND SIMULATION OF LEKKI CABLE STAYED BRIDGE IN PREDICTING AN AEROELASTIC EFFECTS

Authors: HASSAN ABBA MUSA , INUWA IBRAHIM AMINU , SHUAIBU UMAR

Abstract: The paradigm shifts in the history of predicting the wind related effects was shifted from early theoretical,numerical, experimental techniques, to Computer techniques in fully understanding the vibrational characteristics of a system like Bridge. Therefore, the structural dynamic analysis includes determination of the natural mode shapes and frequencies of an elastic structure in free unforced vibration. In this research paper, the software like ANSYS and others whose built based on Finite Element Method are adapted and well suited for this type of analysis since the mode shapes can be accurately derived from the geometrically complex of the structures, such as beams, and pylons sections that commonly found in slender structure like bridge. The FE structural model is typically formulated in SOLID-Works software as an Eigensystem,where the eigenvalues and eigenvectors represent the natural frequencies and the mode shapes, respectively. The lowest eigenvalues (1.1006e-008 Hz) correspond

Keywords: Computer Techniques, Vibrational characteristics, Lekki Bridge, ANSYS, SOLID- Works, Eigen System.

Pages: 1 - 5 | DOI: 10.15224/978-1-63248-158-0-12

2. EFFECT OF CORAL CELL ON BEACH DEFORMATION BY 3-D HYDRAULIC MODEL EXPERIMENT

Authors: HONG BUM PARK , KWANG SOO LEE , KYEONG MO LIM , SANG KIL PARK

Abstract: Recently, coastal environmental pollution is getting serious. Among these, beach erosion has great a significant impact. These coastal structures are made to minimize the loss of sand beach. For this reason, submerged breakwater has been indiscriminately constructed that is planned throughout south korea. In order to prevent erosion,some advanced countries have been installed submerged breakwater or breakwater. Despite of its purpose to keep the shoreline of the beach,it has a quite a few problems. In addition, the purpose of utilizing the space of the marine leisure users does not like that because of the disconnection of the sea using sea space. These methods have resulted in afurther erosion of the beach. Therefore, in this study, we propose to develop a economical method of artificial coral cell model that can mitigate degree rate of beach erosion and improve coastal environments without installing the submerged breakwater or breakwater for the maintenance. We compared and analyzed

Keywords: Beach Erosion, Water Quality, Beach Maintenance, Beach Topography, Artificial Coral Cell Model

Pages: 6 - 10 | DOI: 10.15224/978-1-63248-158-0-13

3. APPLICATION OF NUMERICAL TECHNIQUES TO TSUNAMI SIMULATION

Authors: MASAJI WATANABE , NOVERINA ALFIANY

Abstract: This study shows the practical application of numerical techniques for tsunami simulation. Our techniques were tested against a model problem of flow with linear bottom friction over a parabolic bottom topography. A governing system of partial differential equations was spatially discretized over a triangular mesh. Standard ODE solvers were applied to the resultant system of ordinary differential equations for the horizontal fluxes and the wave height. At each time step, each node was tested to determine whether it was “wet” or “dry”, according to criteria on the total depth. An initial displacement was set according to source fault plane generated by other authors. Our techniques were applied to the Mentawai 2010 tsunami simulation and the Indian Ocean 2004 tsunami simulation.

Keywords: Numerical techniques, parabolic bottom topography, standard ODE solver, tsunami simulation

Pages: 11 - 18 | DOI: 10.15224/978-1-63248-158-0-2810.15224/978-1-63248-158-0-28

4. NUMERICAL SIMULATION OF EXOGENOUS TYPE MICROBIAL DEPOLYMERIZATION PROCESS WITH WEIGHT DISTRIBUTION AND MICROBIAL POPULATION

Authors: FUSAKO KAWAI , MASAJI WATANABE

Abstract: Results from previous studies were incorporated into a simulation of a microbial depolymerization process.Experimental results were incorporated into analysis, and a mathematical model for a weight distribution and a microbial population was analyzed numerically. Numerical results and experimental results were compared, and the validity of our model and numerical techniques are discussed.

Keywords: biodegradation, polymer, mathematical model, numerical simulation

Pages: 19 - 22 | DOI: 10.15224/978-1-63248-158-0-29

5. CONVERSION OF 3A ZEOLITE FROM BAGASSE ASH AND ALUMINIUM HYDROXIDE SLUDGE

Authors: PATTAMAPHORN PHUNGNGAMPHAN , REWADEE ANUWATTANA , WORAPONG PATTAYAWAN

Abstract: This work aim to synthesis of a 3A zeolite (K-LTA) obtained by a fusion process of potassium salt, synthesized from the bagasse ash. The bagasse ash and aluminium hydroxide sludge were sources of starting materials for K-A zeolite (3A zeolite) conversion using the alkali fusion hydrothermal process.The bagasse ash and potassium salt were mixed at the weight ratio of 1:1.2 and then fused at 550°C for 1 hour prior to the hydrothermal treatment. After that, the hydroxide solution was added to the fused material slurry and thoroughly stirred at 105± 3 °C in the stainless steel reactor. The reaction time was varied from 1 to 6 hours. The results showed that the highest yield of 3A zeolite conversion was approximately 62% and was obtained from the mixtures containing hydroxide solution,stirred for 5 hours.

Keywords: 3A zeolite, Bagasse Ash, Aluminium Hydroxide Sludge, Fusion Method, Waste Utilization

Pages: 23 - 26 | DOI: 10.15224/978-1-63248-158-0-31

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