Pouyan PressComputational Engineering and Physical Modeling2588-69593320200701Assessing Flood Occurrence and Modeling Impact of Urban Drainage Structure11110589710.22115/cepm.2020.221035.1090ENRaymundo RomeroPartido State University, Goa, Camarines Sur, Philippines0000-0002-7142-5749Nelson RomeroPartido State University, Goa, Camarines Sur, Philippines0000-0002-0573-5693Fe RomeroPartido State University, Goa, Camarines Sur, Philippines0000-0001-5950-4463Jonjon C.CronicoPartido State University, Goa, Camarines Sur, Philippines0000-0002-9285-3822Journal Article20200223This study evaluated the catchment and flood prone area by applying physical and numerical modeling. This described rainfall data and presented evidences of flooding based from extreme precipitation events. Mathematical models were derived using the definition of discharge and Manning’s formula which finally were used to estimate the sufficiency of the river canal cross sectional area to transport great amount of water flow. Mt. Isarog, mountain ranges of Lagonoy and the low land area are the sources of flood water in Lagonoy River. The amount of daily precipitation is always insufficient to induce flooding except for a terrifying event that the area was heavily affected. The river canal cross sectional area is sufficient to accommodate flood water flow but the position of the moon which is indicating differences on river depth during full/new moon and first/third quartermoon, high tide and low tide, and with heavy and non-heavy rainfall.causes the flood while others are due to river bends, insufficient design of spillway and obstruction of irrigation waterway.Pouyan PressComputational Engineering and Physical Modeling2588-69593320200701Evaluation of the Effect of Modulus of Elasticity in Clay Core on the Arching in the Crest of Earth Dams122011093510.22115/cepm.2020.225075.1096ENAbolfazl AsadiM.Sc of Civil Engineering, Department of Soil and Foundation Mechanic Engineering, Tafresh University, Tafresh, IranHamidreza SabaAssistant Professor of Civil Engineering, Department of Soil and Foundation Engineering, Tafresh University, Tafresh, IranJournal Article20200403The results of analysis of effect the modulus of elasticity <em>(E)</em> on the deposition changes are considerable. In practice, these factors can have an effect on displacement value and stress in the earth dam. Hence, the effect of this parameter on the unequal settlement and stress created in in the crest of dam is assessed using the finite element method (FEM). The results showed that by increasing the value of modulus of elasticity <em>(E)</em> of the clay core and decreasing the difference of modulus of elasticity in the clay core and modulus of elasticity of the crust, the vertical displacement value in the crest of dam is decreased notably. The results showed that by decreasing the difference between the modulus of elasticity (E) in clay core and crust, reaches to zero, the value of unequal settlement at the crest of dam decrease to less than 1 mm. When the modulus of elasticity (E) in clay core is less than 50% of the modulus of elasticity (E) crust, the arching increases.Pouyan PressComputational Engineering and Physical Modeling2588-69593320200701Analysis of Diagrid Structural System for High Rise Steel Buildings213310586810.22115/cepm.2020.223505.1092ENMangesh VhanmaneDepartment of Civil Engineering, Annasaheb Dange College of Engineering & Technology Ashta, Dist. Sangli, Maharashtra, IndiaMaheshkumar MBhanuseDepartment of Civil Engineering, Annasaheb Dange College of Engineering & Technology Ashta, Dist. Sangli, Maharashtra, India0000-0003-1554-1806Journal Article20200314The fast growth of the population and the growing cost of the land leads the construction of buildings to the sky. But as the height of the structure increases, the lateral load resistance mechanism is more important than the response of gravity loading to the structural arrangement. The common systems used to resist lateral loads are braced tube systems, shear walls, rigid frames, wall-frame, outrigger system and tubular systems. The dissertation work goal is to explore the applicability of diagrid structures in high rise steel structures, over the conventional construction systems. This work introduces the analysis of high-rise buildings with a diagrid system. A square plan of size 32 m × 32 m is considered for the study of the behaviour of high-rise buildings with diagrid arrangements. All structural members such as beams, columns are analyzed considering all load combinations as per IS 800:2007. Similarly, analysis is carried out for G+40, G+60 and G+80 storey building models with diagrid arrangements. Comparison of terms such as storey shear, storey displacement and storey drift are also presented in this paper. By using ETABS software the modelling and analysis of structural members are carried out. Diagrid arrangement gives a without column structure which decreases steel required as compared to conventional buildings. Also, they look decent from a beautiful perspective. The diagrid structure performs well in all the parameters such as performance, expression and stability. Diagrid structure is more stiff than other structures.Pouyan PressComputational Engineering and Physical Modeling2588-69593320200701Improving the Behavior of Non-Uniform Tall Structures in Determining the Optimum Location of Belt Truss System344510826710.22115/cepm.2020.230337.1107ENAli SalajegheMaster of Science Student, Shahid Bahonar University of Kerman, Kerman, IranReza KamgarAssistant Professor of Civil Engineering, Shahrekord University, Shahrekord, Iran0000-0002-6575-7122Reza RahgozarProfessor of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, IranJournal Article20200508The sensitivity of tall buildings subjected to the lateral loads is more than that of the gravity loads. Therefore, the conventional methods are not efficient yet, and new methods are proposed by designers to reduce the structural roof displacement, shear lag, overturning moment, and also increase the lateral resistance of the structures. In the design of tall structures, it is desirable to minimize the lateral stiffness of the structures for economic reasons. In this paper, the structure is modeled using the energy method and the continuous beam model. The outrigger's optimum position is calculated considering different loading patterns. It is assumed that the lateral stiffness of the structure changes with the height. An equivalent rotational spring is utilized to model the belt truss and outrigger system. The results show that the outrigger's optimum position depends on the type of the lateral load as well as how the stiffness changes in the height of the structure.Pouyan PressComputational Engineering and Physical Modeling2588-69593320200701Design, Fabrication and Structural Analysis of a 5 Tons Hydraulic Press and Mould Machine for Crucible Production465811430510.22115/cepm.2020.237362.1113ENOlatunji OladimejiOjoMechanical Engineering Department, Federal University of Technology, P. M. B. 704, Akure, Ondo State, NigeriaIndustrial and Production Engineering Department, Federal University of Technology, P. M. B. 704, Akure, Ondo State, Nigeria0000-0002-6581-1168Olujoba MesachOlalekeMechanical Engineering Department, Federal University of Technology, P. M. B. 704, Akure, Ondo State, NigeriaOlurotimi AkintundeDahunsiMechanical Engineering Department, Federal University of Technology, P. M. B. 704, Akure, Ondo State, NigeriaJournal Article20200629A hydraulic press machine comprising of the frame, cylinder, hand pump, and pressure gauge was designed, fabricated, and evaluated. The machine is manually operated and the frame was modeled using the Solidwork application software 2018 version. The maximum stress, maximum displacement, maximum strain, and factor of safety of the machine are 97.09 MPa, 0.337696 mm, 0.000361326, and 2.32 respectively. The performance of the developed machine was successfully carried out by using it to mould clay of different sieve sizes (0.6-4.75 mm) into crucible form with an applied maximum pressure of 100 bar. The results showed that the smaller the size of the sieve, the lower the pressure required for compaction, as a result, the hydraulic press designed is effective for clay compaction and the design is safe. The machine which was fabricated with local materials will enhance the production of suitable crucibles, thereby, reducing the over-reliance on the foreign crucible by small and medium scale foundry operators.