Saudi Journal of Civil Engineering最新文献_第6页

Compressive Strength Determination of Granite Dust-Sandcrete 花岗岩尘砂混凝土抗压强度测定

Saudi Journal of Civil Engineering Pub Date : 2022-01-12 DOI: 10.36348/sjce.2022.v06i01.002

Ihemegbulem Ezekiel O, Njoku Kelechi O, Nwokorobia Godfrey C, Ikpa Patience N

{"title":"Compressive Strength Determination of Granite Dust-Sandcrete","authors":"Ihemegbulem Ezekiel O, Njoku Kelechi O, Nwokorobia Godfrey C, Ikpa Patience N","doi":"10.36348/sjce.2022.v06i01.002","DOIUrl":"https://doi.org/10.36348/sjce.2022.v06i01.002","url":null,"abstract":"This study entails the research data of the empirical study carried out on the compressive strength determination of Granite dust-Sandcrete with granite dust as partial replacement of three (3) grades of river sand with fineness modulus (fm) of 2.29, 2.44 and 2.89. The percentage replacements range from 0%, 10%, 20%, 30%, 40%, 50% to 100%. A gross number of 102 cubes of 150 × 150 × 150mm square metallic mould were blend, mixed and cast with a mix ratio of 1:5. Three (3) cubes were blend, mixed and cast for each percentage partial replacement and a total 34 cubes for each grade of river sand, were crushed to derive the compression strength of 28th day curing respectively. For river sand with fineness modulus of 2.29, the highest strength was recorded on 80% replacement, while the least strength was recorded on 0% replacement. For the same river sand, compressive strength increased from 0% to 80% and assumed a descending trend from 80% to 100%. For 2.44 fineness modulus, the highest strength was recorded on 80% replacement, while the least strength was recorded on 0% replacement. Also, for the same river sand, compressive strength increased from 0% to 80% and assumed a descending trend from 80% to 100%. For river sand of 2.89 fineness modulus, the highest strength was recorded on 70% replacement, while the least strength was recorded on 0% replacement. Also, compressive strength increased from 0% to 70% and assumed a descending trend from 70% to 100%. Generally, the compressive strength assumed an upward trend as the percentage replacement increases.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125429544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A BIM Approach for the Design of Industrial Warehouses BIM在工业仓库设计中的应用

Saudi Journal of Civil Engineering Pub Date : 2022-01-10 DOI: 10.36348/sjce.2022.v06i01.001

Rassidatou Abbo, Okpwe Mbarga Richard, L. Minsili, Mbondo Jean Marc

{"title":"A BIM Approach for the Design of Industrial Warehouses","authors":"Rassidatou Abbo, Okpwe Mbarga Richard, L. Minsili, Mbondo Jean Marc","doi":"10.36348/sjce.2022.v06i01.001","DOIUrl":"https://doi.org/10.36348/sjce.2022.v06i01.001","url":null,"abstract":"All around the world, the Building Information Modeling (BIM) is transforming the architecture of engineering design and of construction industry. While it is in an early implementation stage in African Sub-saharan Countries, many construction regulators and project owners are beginning to enforce the BIM application from the project design stage to its commissioning. The aim of this research work is to provide an approach for designing industrial warehouses using BIM as it was done in the industrial zone of the Kribi Deep Sea port in Cameroon. The proposed methodology is presented in six steps: definition of BIM general requirements, design of the 3D BIM architectural model, sizing of wall and roof for specific requirements, design of the 3D BIM structural model, coordination of 3D BIM models and interference detection and creation of 4D BIM model. Results obtained from the application of BIM on the design of a warehouse, dedicated to preserve the natural and biological essence of cocoa and coffee products in a hostile marine environment, show that this methodology is easily appropriated and implemented by local design and construction engineers through available engineering software in the local market.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124868757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Developing Model for Critical Slip Surface in Slope Stability Analysis based on Geometry and Soil parameters 基于几何和土壤参数的边坡稳定性分析中临界滑移面模型的建立

Saudi Journal of Civil Engineering Pub Date : 2021-04-29 DOI: 10.36348/sjce.2021.v05i03.001

. W. Firomsa, Damtew Tsige

{"title":"Developing Model for Critical Slip Surface in Slope Stability Analysis based on Geometry and Soil parameters","authors":" . W. Firomsa, Damtew Tsige","doi":"10.36348/sjce.2021.v05i03.001","DOIUrl":"https://doi.org/10.36348/sjce.2021.v05i03.001","url":null,"abstract":"The critical failure surface for a given slope can be determined by comparing factor of safety of several trial slip surfaces. To find the minimum factor of safety, it is important to get critical failure surface for the given slope. Different searching and optimization methods that had the difficulty in using them for hand calculations have been used in the past. In this study, effect of soil strength parameters; cohesion (c), internal friction angle (φ), and unit weight () on the failure surface and factor of safety of the slope were studied. GEO5 software program were used to calculate the length of failure and determine the critical failure surface. An equation was introduced in to locate the critical failure surface by using soils strength and slope geometry parameters. The results of the study showed that the factor of safety of the slope changes with varying cohesion c, internal friction angle φ, and the unit weight  of the soil. Moreover, the slip surface is affected by the dimensionless function (), which is related to the cohesion, internal friction angle and unit weight. Model was introduced in to locate the critical failure surface by using soils strength and slope geometry.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122596176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Identification and Ranking the Most Significant Risks of the Mega Construction Projects in Saudi Arabia 沙特阿拉伯大型建设项目的重大风险识别与排序

Saudi Journal of Civil Engineering Pub Date : 2021-03-16 DOI: 10.36348/sjce.2021.v05i02.003

Abdulmoneim Am, A AlSamadony, Nosair Ia

{"title":"Identification and Ranking the Most Significant Risks of the Mega Construction Projects in Saudi Arabia","authors":"Abdulmoneim Am, A AlSamadony, Nosair Ia","doi":"10.36348/sjce.2021.v05i02.003","DOIUrl":"https://doi.org/10.36348/sjce.2021.v05i02.003","url":null,"abstract":"Megaprojects are a large-scale project with an expensive cost and long time schedule, this unique kind of projects are usually given their infamous reputation as it is often result in undesired outcomes same as enormous cost overruns and time extensions. In a lot of cases of undesired outcomes, we can predict that it is due to not managing megaprojects characteristics as skillfully as required and wrong combination of that characteristics which lead to a disaster. Improper managing the different managerial aspects of mega projects is reflecting a failure in the achievement of the project requirements especially in case of risk managements where we can say that, Mega projects is resulting a Mega risk. Risk management is currently considered to be a mandatory part of project management in general and an integral part of successful project management while the main aspect which is projects management is different from megaprojects than in other types of projects (smalland medium-scale projects) as in case of megaproject the management is more complex and complicated due to the size and complexity of that kind of projects. In this research the author studied the Risk Management in the Mega construction projects in the kingdom of Saudi Arabia (KSA) and the main objective of this research was to apply the best ways of managing the risk in case of mega construction projects starting from identifying the most significant risks which impact this kind of project in KSA and then analyze the identified risk qualitatively to determine its impact in the project objective and to find out the most significant 15 risks after the ranking of the identified risk depending on the risk importance index of every risk the research resulted in identifying 57 risks and categorize those risks in 2 main groups and 8 subgroups one of them is related the mega construction projects characteristics and then the most important risks has been determined.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129344209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of New Energy Saving Technology and Materials in HVAC Design of Civil Buildings 新型节能技术和材料在民用建筑暖通空调设计中的应用

Saudi Journal of Civil Engineering Pub Date : 2020-07-05 DOI: 10.36348/sjce.2020.v04i05.001

Shengjie Guo, L. Ru

引用次数: 0

The Use of Polynomial Deflection Function in The Analysis of Thick Plates using Higher Order Shear Deformation Theory 高阶剪切变形理论在厚板变形分析中的应用

Saudi Journal of Civil Engineering Pub Date : 2020-06-18 DOI: 10.36348/sjce.2020.v04i04.001

I. C. Onyechere, O. Ibearugbulem, U. C. Anya, Kelechi Okechukwu Njoku, A. U. Igbojiaku, L. Gwarah

{"title":"The Use of Polynomial Deflection Function in The Analysis of Thick Plates using Higher Order Shear Deformation Theory","authors":"I. C. Onyechere, O. Ibearugbulem, U. C. Anya, Kelechi Okechukwu Njoku, A. U. Igbojiaku, L. Gwarah","doi":"10.36348/sjce.2020.v04i04.001","DOIUrl":"https://doi.org/10.36348/sjce.2020.v04i04.001","url":null,"abstract":"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.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130092735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Black Cotton Soil Properties Modification using Costaceae Lacerus Bagasse Fibre as Road Pavement Stabilizer 用木costaceae Lacerus Bagasse纤维作为道路路面稳定剂改性黑棉土壤特性

Saudi Journal of Civil Engineering Pub Date : 2020-02-29 DOI: 10.36348/sjce.2020.v04i02.001

Gabriel Okonkwo Nnaji, C. Kennedy, Nwaobakata Chukwuemeka

引用次数: 1

Comparative Study of Prospective Delay Analysis Techniques (DATs) 前瞻性延迟分析技术(dat)的比较研究

Saudi Journal of Civil Engineering Pub Date : 2019-09-30 DOI: 10.36348/sjce.2019.v03i05.001

S. Ghimire, A. Mishra

{"title":"Comparative Study of Prospective Delay Analysis Techniques (DATs)","authors":"S. Ghimire, A. Mishra","doi":"10.36348/sjce.2019.v03i05.001","DOIUrl":"https://doi.org/10.36348/sjce.2019.v03i05.001","url":null,"abstract":"Delays are the major sources of disputes and adverse relationships between the stakeholders in construction industry. The existing delay analysis techniques (DATs), though helpful for decision-making, have not succeeded in properly addressing the high incidence of disputes associated with delay claims resolutions. This research has made a comparative study of limitation and capabilities of different ̳Prospective‘ DATs i.e., Impacted as Planned method and Time Impact Analysis Method under the same baseline program and under similar circumstances of delay occurrence through the case study of under-Construction Hydroelectric Project and review of the relevant issues not addressed by the techniques. Oracle‘s Primavera (P6) software has been used for delay analysis. The Contractor has not followed any of the DATs to raise the claim for extension of time. Though the contractor has submitted its revised construction schedule as per the FIDIC conditions of contract and ask for time extension of 721 days, the revised construction schedule has no any linkage with the original approved baseline Schedule. The Impacted as planned technique confined the delay to 621 days. The actual site condition and the progress were not considered in this method. The concurrent delays and pacing delays were also not addressed. According to the Time Impact analysis technique, the contractor‘s caused delay was 101 days and the delay from Employer‘s side was 529 days. The actual site condition and the progress were considered in this method. However, none of the Delay analysis techniques is found to address all the delay occurring events. The concurrent delays and pacing delayswere also not addressed. Time impact analysis technique is more accurate method as the site progress is incorporated in this method and is recommended to be followed.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115645991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

The Spatial Practice of Migrant Communities in Doha, Qatar: The Case of Najada Zone 卡塔尔多哈移民社区的空间实践——以纳加达区为例

Saudi Journal of Civil Engineering Pub Date : 2019-09-30 DOI: 10.36348/sjce.2019.v03i05.006

Asmaa Al-Mohannadi, A. Al-Malki, R. Furlan

引用次数: 1

‘Kanoo’, a Traditional Urban Neighborhood in Manama City: An Approach to Promote Urban Regeneration and Enhance Livability 麦纳麦市的传统城市社区“Kanoo”:促进城市更新和提高宜居性的方法

Saudi Journal of Civil Engineering Pub Date : 2019-09-30 DOI: 10.36348/sjce.2019.v03i05.003

Fatima Shubbar, R. Furlan

{"title":"‘Kanoo’, a Traditional Urban Neighborhood in Manama City: An Approach to Promote Urban Regeneration and Enhance Livability","authors":"Fatima Shubbar, R. Furlan","doi":"10.36348/sjce.2019.v03i05.003","DOIUrl":"https://doi.org/10.36348/sjce.2019.v03i05.003","url":null,"abstract":"Cities all over the world are currently facing many challenges and obstacles related to economy, society, and environment. These were the results of rapid economic developments, urban and population growth, and the accompanying increased needs and changing lifestyles. Several decades ago, Manama, the capital of the Kingdom of Bahrain, experienced significant changes in its urban form due to economic, cultural, and environmental factors. These changes appeared specifically after the discovery of oil in 1932, and the transformation of the economy from fishing and pearl trading to one based on oil. Currently, the Kingdom of Bahrain is investing in its capacity and solutions to these challenges, including creating major attractive developments to meet human needs and nourish the economy. Traditional urban neighborhoods across Bahrain, such as Kanoo, a traditional neighborhood located in Old Manama, were severely affected by modern developments. This research study investigates the urban design study of the Kanoo neighborhood, its features, the urban and historical significance in Manama and its surroundings. The study further investigates the role of rehabilitation projects in regenerating the old core of Manama, while rebuilding the vanishing identity of the city. The findings highlight the critical factors effecting the Kanoo neighborhood and contribute to develop strategies for a sustainable urban regeneration approach, enabling to protect the urban fabric of the neighborhood and its remaining historical areas, to revive the old city and preserve the neighborhood‟s identity.","PeriodicalId":437137,"journal":{"name":"Saudi Journal of Civil Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130897611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1