“Saudi Journal of Civil Engineering” ISSN 2523-2231 (Online) & ISSN 2523-2651 (Print) is a Monthly, peer reviewed, open access, Journal published by published by “Scholars Middle East Publishers”, Dubai, UAE. This Journal publishes Original Research Articles, Review, Short Communications, Essays and Case Studies within the whole field of civil engineering and its related and applied fields.
Scope of Journal
The scopes of “Saudi Journal of Civil Engineering” includes all the areas of research activities in all fields of civil engineering like Structural Engineering, Construction Engineering, Geotechnical Engineering, Transportation Engineering, Surveying, Water Resource Engineering, Environmental Engineering, Municipal Engineering, Coastal Engineering, Tunnel Engineering, Earthquake Engineering, Material Engineering etc.
Dr. Rabiul Ahasan
Professor, Department of Industrial Engineering King Abdulaziz University, Jeddah, Saudi Arabia
Prof. Shrikant M. Harle
Dept of Civil Engg & Member, Innovation & Entrepreneurship Development Centre (IEDC), Prof Ram Meghe College of Engg & Management, Amravati, Maharashtra, India
Faculty of Materials Science and Engineering, University of Miskolc, Miskolc, Hungary
Department of Industrial and Systems Engineering Khalifa University of Science and Technology, Abu Dhabi, UAE
Dr. Soumitra Hazra
Senior Researcher Frontier Institute for Biomolecular Engineering Research(FIBER), Konan University, Japan
Md. Samdani Azad
Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Thailand
Assistant Professor, Engineering & Technology Suresh Gyan Vihar University, Jaipur (Raj.) India
Dr Adamu M
Department of Construction and Surveying, School of Engineering and Built Environment, Glasgow Caledonian University UK, G4 OBA
Prof. Hamid Yaghoubi
The Director Iran Maglev Technology (IMT), Tehran, Iran
Dr. Zied DRISS
Associate Professor at National School of Engineers of Sfax(ENIS), University of Sfax (US), B.P. 1173, Road Soukra, 3038, Sfax, Tunisia
Assistant Professor Department of Civil Engineering Graphic Era University, Dehradun-248002, Uttarakhand, India
Dr. Praveen Kumar Sharma
Associate Professor Department of Chemistry, Lovely Professional University, Punjab-144411 India
Dr. Naveen BP
Associate Professor Department of Civil Engineering Amity School of Engineering & Technology, Amity University Gurgaon, Panchgaon, Manesar Haryana-122413
Effect of Base Isolation in Multistoried RC Regular and Irregular Building by Using Response Spectrum Analysis
S. Gyawali, D. Thapa, T. R. Bhattarai
Page Numbers : 77-84
DOI : 10.36348/sjce.2020.v04i05.004
As we know that large population in the world are living in regions of seismic hazards, at risk from earthquakes of varying severity and frequency of occurrence. The significant loss of life and damage of property occurs every year due to earthquake. Here the one of the best solution to mitigate the effect of earthquake on building is base isolation technique. The main mechanism of seismic isolation is to decouple the structure from base by providing seismic isolators. The Lead Rubber Bearing (LRB) is mounted beneath the superstructure in base isolation system. The significant of base isolation device is to minimize the horizontal acceleration transmitted to the superstructure. It is very promising technology to protect different structures from seismic excitation. In this research, GF+4 storied regular, plan irregular (re-entrant corners) and vertical irregular (vertical geometric irregularity) building models were considered for both fixed base and base isolation in SAP. Response spectrum method analysis under IS1893:2002 was conducted in analysis software for the result of seismic performance parameters. The output results of seismic parameters were interpreted and compared. The SAP analysis results were compared and validated by ETABS software. Lead rubber bearings were designed as UBC 97 and used for base isolation. The research concluded that, Plan and vertical irregular LRB building found more seismically performed than regular LRB building however vertical irregular LRB building showed better performance as comparison to plan irregular LRB building.
Original Research Article
July 30, 2020
Study on Job Satisfaction of Civil Engineers in Gandaki Provincial Government, Nepal
Better performance of infrastructure development depends on the several factors whereas job satisfaction seems one of the key factors. Large Number of Engineers was de-motivated to accept the staff adjustment policy. This study focuses to find the job satisfaction of civil Engineers in Gandaki Provincial Government. Data were collected through structured questionnaires. Questionnaires were distributed into 134 Engineers. The responses from 103 (76.87%) respondents were documented. The study adopted descriptive and interferential statistics analytical using Statistical Program for Social Sciences (SPSS) and MS- Excel. The correlation coefficient varied between 0.292 (pay/salary) to 0.612 (Work Group). The result shows that there was significant relationship between work group and job satisfaction (r=0.612, p<0.01).There was no significant difference in level of satisfaction based on demographic factors like gender, academic qualification, Age Groups, Civil engineering sub sectors, designation level and time span for total years of experience. ANOVA test was carried out to test null and alternate hypothesis P value for each variable was recorded greater than 0.05. Multiple linear regression analysis was conducted considering job satisfactions as dependent variable, R square was recorded as of 0.582 indicates that the independent variables (predictors) such Supervisors (Bosses), Work Group, Working Conditions, Promotion Opportunities, Pay / Salary, Transfer and Posting factors used in this model explained about 58.2% of the total variation in dependent variable job satisfaction of employees under study.
Original Research Article
July 16, 2020
Technical Suitability Assessment of Autoclaved Aerated Concrete Block as Alternative Building wall Construction Material; A Case of Nepal
Er. Deepak Khanal, Asso. Prof. Dr. Anjay Kumar Mishra, Asst. Prof. Birat Ghimire
Page Numbers : 55-67
DOI : 10.36348/sjce.2020.v04i05.002
The increasing demand of construction is a challenge to be fulfilled in this regard different new construction materials are found to be utilized differently. One of the wall construction materials Autoclaved Aerated Concrete Block (AAC) is found to be used in Bharatpur Metropolitanof Nepal.The purpose of this research is to assess the technical suitability of Autoclaved Aerated Concrete Block as Alternative Building Construction Material for the construction of residential buildings and hotels. Laboratory test of the AAC blocks ware done .Quality control chart and t-test ware done for analysis. To test the physical properties, 5 samples of AAC block were observed for compressive strength, density andwater absorption. The compressive strength of the AAC block was found to be 4.324 N/mm2 even with a low density of 617.6 kg/m3when compared to a 3.402 N/mm2 average compressive strength of brick of 1685.8 kg/m3 density. However, the water absorption of the AAC block wasfound higher than that of the Clay brick.
July 5, 2020
Application of New Energy Saving Technology and Materials in HVAC Design of Civil Buildings
Shengjie Guo, Lin Ru
Page Numbers : 52-54
DOI : 10.36348/sjce.2020.v04i05.001
Under the background of rapid development of social economy and continuous progress of scientific information technology, new energy-saving technologies and materials have been widely used in building HVAC design, and promoted the development of China's architectural HVAC design field. The application of new energy saving technology and materials in building HVAC design can effectively reduce the energy consumption of building HVAC design and achieve the effect of energy conservation and environmental protection.
Original Research Article
June 24, 2020
Prediction of the Granular Materials Strength
Prof. Saad Issa Sarsam
Page Numbers : 47-51
DOI : 10.36348/sjce.2020.v04i04.002
California bearing ratio (CBR) is an important property used to express the quality and strength of the unbound granular materials. Moreover, it is one of the material inputs for the empirical pavement design procedure. CBR is also conducted on the unbound materials for the quality control/quality assurance during construction. Because of its importance, this paper presents a mathematical approach to the problem of estimating the strength of local sand-aggregate material usually obtained from riverbed and banks and used as subbase layer for road construction. Based on simple and easy to determine physical parameters such as particles size distribution, modified proctor dry density (MDD), and moisture content, such estimation could be determined. The study can help in understanding the nature and the properties of sand-aggregate mixture and provide a reasonable and simple statistical method for assessing the strength from simple physical tests, and assist in considerable reduction of the bulk testing of samples on a project, thus affect economy, choice of material and quality control. The model obtained is capable to explain 73% of the variation in log CBR predicted from gradation and density parameters.
Original Research Article
June 18, 2020
The Use of Polynomial Deflection Function in The Analysis of Thick Plates using Higher Order Shear Deformation Theory
In this work, polynomial deflection expression was used in the free-vibration investigation of thick rectangular plates with two different boundary conditions; one with its four edges clamped denoted with the acronym (CCCC) and another with two adjacent edges fixed and having simple supports at the other two adjacent edges denoted with the acronym (CCSS). The edge conditions of the various plates were fulfilled and used in generating the stiffness coefficients which were substituted into the analytical equation to obtain the non-dimensional frequency functions for the plates at different span-depth ratio (a/t) and aspect ratio (b/a). It was observed that at the same value of (b/a), there is an increase in the value of the non-dimensional frequency parameter as (a/t) increases. Also, at the same value of (a/t), there is a decrease in the value of the non-dimensional frequency parameter as (b/a) increases. The results obtained for the all edges clamped plate were compared with similar works by other researchers in the literature and were found to follow similar pattern and trend and were quite close.
Original Research Article
May 28, 2020
The Effectiveness of Hydrated Lime as a Flocculating Agent in Water Treatment
Awodiji, C. T. G, Nwachukwu, A. N, Onyechere, C. I, Iyidiobi, R. G, Nwabueze, B. J
Page Numbers : 30-37
DOI : 10.36348/sjce.2020.v04i03.001
The efficacy of hydrated lime (HL) as a flocculating agent in water treatment was studied in this work. Two water samples were used. Sample A was obtained from domestic sewage from Hostel A at the Federal University of Technology Owerri. While, sample B was sourced from storm water runoff from drains in Eziobodo Town, Owerri, Nigeria. The samples were treated separately using HL and sodium hydroxide (NaOH) as flocculants respectively. Alum (Al2SO4)3 was used as the coagulating agent for all samples. The jar test was adopted. Treated samples were analyzed for pH, color and turbidity. It was noted that addition of HL and NaOH in all samples increased the pH of the water. pH values for sample A and B were 2.7 and 4.1 before treatment and increased to values between 6.9 to 7.2 after treatment. The use of alum and HL in treating both samples of water led to better color quality than using alum and NaOH. Sample B water treated with HL had lesser color quality than those of sample A. The best color quality of 1.0 PCU happened when treating sample A water using 25mg/l alum and 43.8mg/l HL. Treatment of sample B using alum and NaOH did not improve turbidity. Rather, a maximum increase of 1.8% was observed at 25mg/l alum and 17.0mg/l NaOH dosage. The use of alum and HL showed a remarkable improvement in turbidity. Best value of 3.12NTU was measured at 25mg/l alum and 43.8mg/l HL dosage. Treatment of sample A with alum and HL gave better turbidity values when compared to sample B. Removal efficiencies of 95% and 90% for both samples were observed respectively. In conclusion, HL can be effectively used as a flocculating agent in treating water when applied in the right proportion.