Pub Date : 2023-07-07DOI: 10.37394/232022.2023.3.8
M. K. Rishad, V. P. Singh
This study mainly emphasised on compare the seismic behaviour of high-rise steel building with different types of bracing systems. Non-linear static analysis were performed to observe the structural performance on high rise steel building of heights 10,15,20,25,30 and 35 storeys. For this study, four types bracing systems were used: V-Braced frames (VBF), Chevron Braced frames (CBF), X-Braced frames and Self-centring energy dissipating braced frames (SCEDBF). The performance of different types of bracing system has been evaluated by changing the parameters like height of building and different types of lateral load pattern. It has been observed that different braced frames performed well in terms of storey displacement, inter-storey drift ratio, base shear capacity and performance point when compared with moment resisting frame in high-rise steel buildings. It has been observed that VBF and CBF performed similar manner under seismic event and XBF and SCEDBF performed similar manner. It can be concluded that, based on obtained results, that the use of VBF, CBF, XBF and SCEDBF enhances the seismic performance of overall structure.
{"title":"Modelling of Bracing Systems for Seismic Behaviour of High Rise Steel Building","authors":"M. K. Rishad, V. P. Singh","doi":"10.37394/232022.2023.3.8","DOIUrl":"https://doi.org/10.37394/232022.2023.3.8","url":null,"abstract":"This study mainly emphasised on compare the seismic behaviour of high-rise steel building with different types of bracing systems. Non-linear static analysis were performed to observe the structural performance on high rise steel building of heights 10,15,20,25,30 and 35 storeys. For this study, four types bracing systems were used: V-Braced frames (VBF), Chevron Braced frames (CBF), X-Braced frames and Self-centring energy dissipating braced frames (SCEDBF). The performance of different types of bracing system has been evaluated by changing the parameters like height of building and different types of lateral load pattern. It has been observed that different braced frames performed well in terms of storey displacement, inter-storey drift ratio, base shear capacity and performance point when compared with moment resisting frame in high-rise steel buildings. It has been observed that VBF and CBF performed similar manner under seismic event and XBF and SCEDBF performed similar manner. It can be concluded that, based on obtained results, that the use of VBF, CBF, XBF and SCEDBF enhances the seismic performance of overall structure.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127965593","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}
Pub Date : 2023-05-31DOI: 10.37394/232022.2023.3.6
Dao Mong Diep
The industrial revolution 4.0 is considered an important transformation period that has a profound impact on the labor market. Under the impact of the industrial revolution 4.0, the labor market has many opportunities and faces many barriers and challenges. The labor market is the place where the buying and selling of labor power by employers and employees takes place, therefore, in addition to being affected by the superstructure, the labor market is also affected by the impact of the superstructure. of the legal system and related policies. The labor market is ensured through the creation of the environment and institutions by the state to regulate arising relationships. In addition, the state also prescribes policies related to the labor market and those that deal with its deficiencies. At the same time, the labor market adjustment mechanism is also specifically recorded to ensure the efficient process of buying and selling labor between employers and employees. Under the impact of the industrial revolution 4.0, the labor market also has certain changes. Labor supply and demand fluctuations. The emergence of a number of new jobs to meet the requirements set forth in the context of the 4.0 revolution as well as the replacement of some job positions. This has a great impact on the legal corridor on the labor market. The article aims to analyze the legal situation and solutions to improve the legal corridor on the labor market under the impact of the industrial revolution 4.0.
{"title":"Assessment of legal regulations on labor market in the context of industrial Revolution 4.0","authors":"Dao Mong Diep","doi":"10.37394/232022.2023.3.6","DOIUrl":"https://doi.org/10.37394/232022.2023.3.6","url":null,"abstract":"The industrial revolution 4.0 is considered an important transformation period that has a profound impact on the labor market. Under the impact of the industrial revolution 4.0, the labor market has many opportunities and faces many barriers and challenges. The labor market is the place where the buying and selling of labor power by employers and employees takes place, therefore, in addition to being affected by the superstructure, the labor market is also affected by the impact of the superstructure. of the legal system and related policies. The labor market is ensured through the creation of the environment and institutions by the state to regulate arising relationships. In addition, the state also prescribes policies related to the labor market and those that deal with its deficiencies. At the same time, the labor market adjustment mechanism is also specifically recorded to ensure the efficient process of buying and selling labor between employers and employees. Under the impact of the industrial revolution 4.0, the labor market also has certain changes. Labor supply and demand fluctuations. The emergence of a number of new jobs to meet the requirements set forth in the context of the 4.0 revolution as well as the replacement of some job positions. This has a great impact on the legal corridor on the labor market. The article aims to analyze the legal situation and solutions to improve the legal corridor on the labor market under the impact of the industrial revolution 4.0.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132503805","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}
Pub Date : 2023-04-03DOI: 10.37394/232022.2023.3.2
D. Procházková
Technical installation powered by small modular reactors (SMRs) is perspective industrial object due to high need of energy of new technologies and problems in the world. They are critical installations due to content and work with dangerous substances because these are sources of fire, explosion and environ-ment contamination. Therefore, for human society and its development, it is necessary to manage not only their nuclear safety, but also their integral (complex) safety, because just integral safety ensures the security and development of human society. The approach to safety and concept of safety management used by manufacturer, operator and regulator must be same. For this purpose, we give in article a tool showing the main features and requirements for management of the integral safety of such installations.
{"title":"Generic Model for Management of Safety of Technical Installations Powered by Small Modular Reactors","authors":"D. Procházková","doi":"10.37394/232022.2023.3.2","DOIUrl":"https://doi.org/10.37394/232022.2023.3.2","url":null,"abstract":"Technical installation powered by small modular reactors (SMRs) is perspective industrial object due to high need of energy of new technologies and problems in the world. They are critical installations due to content and work with dangerous substances because these are sources of fire, explosion and environ-ment contamination. Therefore, for human society and its development, it is necessary to manage not only their nuclear safety, but also their integral (complex) safety, because just integral safety ensures the security and development of human society. The approach to safety and concept of safety management used by manufacturer, operator and regulator must be same. For this purpose, we give in article a tool showing the main features and requirements for management of the integral safety of such installations.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114249748","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}
Pub Date : 2023-03-06DOI: 10.37394/232022.2023.3.1
Nadeem Chahin, A. Mansour
Wireless Sensor Network (WSN) is an essential technology in many Internet of Things (IoT) applications, and since sensor nodes suffer from limited resources, it has become possible to overcome storage capacity problems using cloud computing, the integration of Internet of Things (IoT) with cloud computing (CC) seeks to achieve new levels of efficiency in service delivery. Security and privacy are key factors that slow down the rapid and widespread adoption and deployment of both IoT and cloud computing. In the proposed model, an integrated IoT system with cloud computing was developed starting from the analysis, and design, to the implementation to connect IoT devices with the cloud, the security is achieved by using a hybrid encryption mechanism which provides the performance advantages of symmetric and asymmetric encryption algorithms. Where the Elliptic Curve Cryptography (ECC) algorithm is used for key generation and AES (Advanced Encryption Standard) algorithm is used for encryption and decryption of the sensors' data to provide a reliable computing environment. We have implemented the proposed system and showed the results of using CONTIKI COOJA 3.0 that connected with the cloud service provider, Evaluate a set of performance metrics such as power consumption, packet delivery ratio, and the algorithm execution time, in addition to verifying network immunity against the black hole attack.
{"title":"Improving the IoT and Cloud Computing integration using Hybrid Encryption","authors":"Nadeem Chahin, A. Mansour","doi":"10.37394/232022.2023.3.1","DOIUrl":"https://doi.org/10.37394/232022.2023.3.1","url":null,"abstract":"Wireless Sensor Network (WSN) is an essential technology in many Internet of Things (IoT) applications, and since sensor nodes suffer from limited resources, it has become possible to overcome storage capacity problems using cloud computing, the integration of Internet of Things (IoT) with cloud computing (CC) seeks to achieve new levels of efficiency in service delivery. Security and privacy are key factors that slow down the rapid and widespread adoption and deployment of both IoT and cloud computing. In the proposed model, an integrated IoT system with cloud computing was developed starting from the analysis, and design, to the implementation to connect IoT devices with the cloud, the security is achieved by using a hybrid encryption mechanism which provides the performance advantages of symmetric and asymmetric encryption algorithms. Where the Elliptic Curve Cryptography (ECC) algorithm is used for key generation and AES (Advanced Encryption Standard) algorithm is used for encryption and decryption of the sensors' data to provide a reliable computing environment. We have implemented the proposed system and showed the results of using CONTIKI COOJA 3.0 that connected with the cloud service provider, Evaluate a set of performance metrics such as power consumption, packet delivery ratio, and the algorithm execution time, in addition to verifying network immunity against the black hole attack.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"77 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123178955","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}
Pub Date : 2022-12-31DOI: 10.37394/232022.2022.2.36
Oluwadare Isaac Olamiju
Globalization and urbanization have been identified as having inherent capacity for the disarticulation and dislocation of a nation’s socio-economic structure. This paper identified the socio-economic forces responsible for slum development in the core of Ado-Ekiti. The core area was delineated using the acquired google image which was processed using ArcView GIS software; Twelve Data Delineation Areas (DDAs) were identified, having: 2,930 buildings and 14,650 households. A 2.5% of households (368) was adopted as sample size. The landlord or the most senior household head was interviewed using a structured socio-economic questionnaire. The photograph of scenes of interest were taken to supplement information from the questionnaire. The DDAs formed the basis for questionnaire administration. Empirical analysis shows that there is poverty in the study area due to underemployment and low income. Government intervention through a holistic urban renewal and creation of enabling environment for job opportunities were proffered for a sustainable city core development in Nigeria and cities of developing nations of the world with similar characteristics.
{"title":"Socio-Economic Dynamics of Slum Growth in Core Areas of Cities In Developing Nations – The Ado-Ekiti Example","authors":"Oluwadare Isaac Olamiju","doi":"10.37394/232022.2022.2.36","DOIUrl":"https://doi.org/10.37394/232022.2022.2.36","url":null,"abstract":"Globalization and urbanization have been identified as having inherent capacity for the disarticulation and dislocation of a nation’s socio-economic structure. This paper identified the socio-economic forces responsible for slum development in the core of Ado-Ekiti. The core area was delineated using the acquired google image which was processed using ArcView GIS software; Twelve Data Delineation Areas (DDAs) were identified, having: 2,930 buildings and 14,650 households. A 2.5% of households (368) was adopted as sample size. The landlord or the most senior household head was interviewed using a structured socio-economic questionnaire. The photograph of scenes of interest were taken to supplement information from the questionnaire. The DDAs formed the basis for questionnaire administration. Empirical analysis shows that there is poverty in the study area due to underemployment and low income. Government intervention through a holistic urban renewal and creation of enabling environment for job opportunities were proffered for a sustainable city core development in Nigeria and cities of developing nations of the world with similar characteristics.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114819478","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}
Pub Date : 2022-12-31DOI: 10.37394/232022.2022.2.33
P. Edi
The aim of this work is to make a feasibility study of the aircraft family concepts using a combined Hybrid Laminar Flow Control - Variable Camber Wing (HLFC-VCW) for a high subsonic Advanced Technology Regional Aircraft (ATRA). The prediction of ATRA’s performance used computational fluid dynamic and empirical methods. The aircraft family concept using a combined HLFC–VCW is feasible for the ATRA aircraft family from an aerodynamic point of view.
{"title":"The Aircraft Family Concepts for an Advanced Technology Regional Aircraft","authors":"P. Edi","doi":"10.37394/232022.2022.2.33","DOIUrl":"https://doi.org/10.37394/232022.2022.2.33","url":null,"abstract":"The aim of this work is to make a feasibility study of the aircraft family concepts using a combined Hybrid Laminar Flow Control - Variable Camber Wing (HLFC-VCW) for a high subsonic Advanced Technology Regional Aircraft (ATRA). The prediction of ATRA’s performance used computational fluid dynamic and empirical methods. The aircraft family concept using a combined HLFC–VCW is feasible for the ATRA aircraft family from an aerodynamic point of view.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129856946","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}
Pub Date : 2022-12-31DOI: 10.37394/232022.2022.2.35
P. Edi
The current state of the art in aircraft design has shown that in order to be economically viable and competitive it is necessary to investigate technology, which may give an improvement in performance and operational flexibility goal, but must be shown to be cost-effective. The current competitive environment forces the potential customers to buy advanced technology aircraft and requires manufacturers to provide more operational flexibility, without drastic performance penalties. This is a challenging task, which might be solved by the use of new technologies. It is believed that the application of an advanced high-lift capability, high cruise Mach number and lower moment turbulent airfoils derived from MS (1)-0317 and MS (1)-0313 to a wing would assist in achieving such a task. This paper describes an investigation aimed to examine the suitability of an aerodynamic wing design, allowing for the use of an advanced turbulent wing section concept for advanced medium-speed Very Light Jet (VLJ) aircraft. The paper describes the phenomenon of configuration design and outlines the wing design process. Description is then given of the aerodynamic design of a wing incorporated with an advanced turbulent wing section technology, tail design and aircraft performances. It concludes with a discussion of the results and recommendations for future work.
{"title":"The Design of Advanced Very Light Jet Aircraft","authors":"P. Edi","doi":"10.37394/232022.2022.2.35","DOIUrl":"https://doi.org/10.37394/232022.2022.2.35","url":null,"abstract":"The current state of the art in aircraft design has shown that in order to be economically viable and competitive it is necessary to investigate technology, which may give an improvement in performance and operational flexibility goal, but must be shown to be cost-effective. The current competitive environment forces the potential customers to buy advanced technology aircraft and requires manufacturers to provide more operational flexibility, without drastic performance penalties. This is a challenging task, which might be solved by the use of new technologies. It is believed that the application of an advanced high-lift capability, high cruise Mach number and lower moment turbulent airfoils derived from MS (1)-0317 and MS (1)-0313 to a wing would assist in achieving such a task. This paper describes an investigation aimed to examine the suitability of an aerodynamic wing design, allowing for the use of an advanced turbulent wing section concept for advanced medium-speed Very Light Jet (VLJ) aircraft. The paper describes the phenomenon of configuration design and outlines the wing design process. Description is then given of the aerodynamic design of a wing incorporated with an advanced turbulent wing section technology, tail design and aircraft performances. It concludes with a discussion of the results and recommendations for future work.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133483844","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}
Pub Date : 2022-12-31DOI: 10.37394/232022.2022.2.32
Dhivya Sethupathy, Dr. S. Ravindhar, Dr. Monsingh David Devadas
Vertical gardens (VG) has proved to have numerous environmental, economic, and social benefits. However, implementing VG is not common in a highly developed city like Chennai due to various reasons. This study aims to examine public perspectives on VG and the challenges preventing their broad adoption in Chennai, Tamil Nadu. This research uses a sociotechnical strategy to encourage the adoption of VG. Design/methodology/approach: A survey approach was used for the investigation. An online questionnaire was given access to the public of Greater Chennai Corporation to come out with a quantitative understanding of the perception of VG. There were four 4 parts with 11 close- ended multiple choice questions. Part 1 included socio-demographic factors, while part 2 collected information on awareness of VG and the desire to adopt it in Chennai. Part 3 examined the understanding of the environmental, economic, and aesthetic benefits of the VG. Part 4 focused on the barriers to the usage of VG in Chennai. Findings: the survey report analysis makes it clear that the following are the barriers to its widespread adoption in Chennai, the VG is still at a conceptual stage in the mind of the public due to a lack of clear understanding of its maintenance, irrigation, and the thought that vertical greening would cause structural damages. The purpose of vertical greening is prioritized for its aesthetic benefits rather than its environmental and social benefits. The maintenance and irrigation issues are also among the reasons discussed in this paper.
垂直花园(VG)已被证明具有许多环境、经济和社会效益。然而，由于各种原因，在金奈这样高度发达的城市，实施VG并不常见。本研究旨在研究公众对VG的看法，以及阻碍其在泰米尔纳德邦金奈广泛采用的挑战。本研究使用社会技术策略来鼓励VG的采用。设计/方法/方法:采用调查方法进行调查。我们向大金奈公司(Greater Chennai Corporation)的公众发放了一份在线问卷，以获得对VG感知的定量理解。考试分为4个部分，共11道封闭式选择题。第1部分包括社会人口因素，而第2部分收集了对VG的认识和在金奈采用它的愿望的信息。第3部分考察了VG在环境、经济和美学方面的好处。第4部分重点介绍了在Chennai使用VG的障碍。调查结果:调查报告分析表明，以下是其在金奈广泛采用的障碍，由于对其维护，灌溉缺乏清晰的认识，并且认为垂直绿化会造成结构破坏，VG在公众心目中仍处于概念阶段。垂直绿化的目的是优先考虑其美学效益，而不是其环境和社会效益。维护和灌溉问题也是本文讨论的原因之一。
{"title":"A Survey Study on the Perception of the Vertical Garden Among the Public of Chennai","authors":"Dhivya Sethupathy, Dr. S. Ravindhar, Dr. Monsingh David Devadas","doi":"10.37394/232022.2022.2.32","DOIUrl":"https://doi.org/10.37394/232022.2022.2.32","url":null,"abstract":"Vertical gardens (VG) has proved to have numerous environmental, economic, and social benefits. However, implementing VG is not common in a highly developed city like Chennai due to various reasons. This study aims to examine public perspectives on VG and the challenges preventing their broad adoption in Chennai, Tamil Nadu. This research uses a sociotechnical strategy to encourage the adoption of VG. Design/methodology/approach: A survey approach was used for the investigation. An online questionnaire was given access to the public of Greater Chennai Corporation to come out with a quantitative understanding of the perception of VG. There were four 4 parts with 11 close- ended multiple choice questions. Part 1 included socio-demographic factors, while part 2 collected information on awareness of VG and the desire to adopt it in Chennai. Part 3 examined the understanding of the environmental, economic, and aesthetic benefits of the VG. Part 4 focused on the barriers to the usage of VG in Chennai. Findings: the survey report analysis makes it clear that the following are the barriers to its widespread adoption in Chennai, the VG is still at a conceptual stage in the mind of the public due to a lack of clear understanding of its maintenance, irrigation, and the thought that vertical greening would cause structural damages. The purpose of vertical greening is prioritized for its aesthetic benefits rather than its environmental and social benefits. The maintenance and irrigation issues are also among the reasons discussed in this paper.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134021426","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}
Pub Date : 2022-12-31DOI: 10.37394/232022.2022.2.34
Najeem O. Adelakun, M. B. Olajide, S. A. Omolola
It is now a common phenomenon in building services that some builders/clients call for the services of the electrical contractor/technicians to carry out an electrical installation without the provision or availability of standard electrical services drawings, at times due to the negligence of the builder/client about the importance of electrical services drawings or in other to reduce cost, which is detrimental and hazardous to the building, pieces of equipment installed or the occupants in the future. This paper analyses the relevance of electrical services engineers in construction and building services. A well-structured online survey was adopted and shared with different engineering platforms where building and construction professionals are to know the practice at various building and construction sites, and a total of 230 responses were collected, the data collected were examined using the descriptive statistics method with good pictorial representation. The result of the survey shows that 20% of the respondents complained about the absence of electrical services drawings, 38% complained that the electrical services drawings provided are not practicable, and 42% of the respondents talked about the availability of relevant electrical services drawings. The analysis from this study confirms that several electrical installations were carried out without the provision of practicable electrical services drawings, especially in domestic installations. It is recommended that the services of qualified electrical services engineers should be employed for standard electrical services drawings, which will give detailed information about the method of wiring, the suitable size/type of distribution, and the protection scheme for lighting and power installations in conformity with the appropriate standard and regulations for effective and well-balanced electrical services.
{"title":"Relevance of Electrical Services Engineers in Construction and Building Services","authors":"Najeem O. Adelakun, M. B. Olajide, S. A. Omolola","doi":"10.37394/232022.2022.2.34","DOIUrl":"https://doi.org/10.37394/232022.2022.2.34","url":null,"abstract":"It is now a common phenomenon in building services that some builders/clients call for the services of the electrical contractor/technicians to carry out an electrical installation without the provision or availability of standard electrical services drawings, at times due to the negligence of the builder/client about the importance of electrical services drawings or in other to reduce cost, which is detrimental and hazardous to the building, pieces of equipment installed or the occupants in the future. This paper analyses the relevance of electrical services engineers in construction and building services. A well-structured online survey was adopted and shared with different engineering platforms where building and construction professionals are to know the practice at various building and construction sites, and a total of 230 responses were collected, the data collected were examined using the descriptive statistics method with good pictorial representation. The result of the survey shows that 20% of the respondents complained about the absence of electrical services drawings, 38% complained that the electrical services drawings provided are not practicable, and 42% of the respondents talked about the availability of relevant electrical services drawings. The analysis from this study confirms that several electrical installations were carried out without the provision of practicable electrical services drawings, especially in domestic installations. It is recommended that the services of qualified electrical services engineers should be employed for standard electrical services drawings, which will give detailed information about the method of wiring, the suitable size/type of distribution, and the protection scheme for lighting and power installations in conformity with the appropriate standard and regulations for effective and well-balanced electrical services.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128078736","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}
Pub Date : 2022-12-05DOI: 10.37394/232022.2022.2.31
B. Çirak
This paper describes the implementation of general multibody system dynamics on sun tracker mechanism. In this study, a dual axes solar tracking mechanism designed within the scope of a project to obtain an efficient electrical energy from solar rays is examined. Dynamic and kinematic calculations of the moving and joint places in the mechanism were made. This study is important as the use of an efficient solar tracker is very useful in military, industrial and residential areas. Free Body Diagrams of all the elements or limbs that make up the sun tracker mechanism have been drawn. Thus, dynamic and kinematic values at elements points were calculated. The proposed dynamics model of the mechanism offers an accurate and fast method to analyze the dynamics of the mechanism knowing that there is no suchwork available for sun tracker. Also, 3D tracker elements were drawn and planned in Solid Work program. The simulation gives a clear idea about energy parameters for different link lengths of the mechanism over a linear displacement.
{"title":"Design and Dynamic Analysis of a 2 Dual Axes Solar Tracking Mechanism","authors":"B. Çirak","doi":"10.37394/232022.2022.2.31","DOIUrl":"https://doi.org/10.37394/232022.2022.2.31","url":null,"abstract":"This paper describes the implementation of general multibody system dynamics on sun tracker mechanism. In this study, a dual axes solar tracking mechanism designed within the scope of a project to obtain an efficient electrical energy from solar rays is examined. Dynamic and kinematic calculations of the moving and joint places in the mechanism were made. This study is important as the use of an efficient solar tracker is very useful in military, industrial and residential areas. Free Body Diagrams of all the elements or limbs that make up the sun tracker mechanism have been drawn. Thus, dynamic and kinematic values at elements points were calculated. The proposed dynamics model of the mechanism offers an accurate and fast method to analyze the dynamics of the mechanism knowing that there is no suchwork available for sun tracker. Also, 3D tracker elements were drawn and planned in Solid Work program. The simulation gives a clear idea about energy parameters for different link lengths of the mechanism over a linear displacement.","PeriodicalId":443735,"journal":{"name":"DESIGN, CONSTRUCTION, MAINTENANCE","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133069628","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}
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