{"title":"Simulation Aided HVAC System Performance Assessment During Design Phase of an Office Building Complex","authors":"Norbert Harmathy","doi":"10.32732/jcec.2018.7.4.163","DOIUrl":"https://doi.org/10.32732/jcec.2018.7.4.163","url":null,"abstract":" The investigation presents a strategic approach during the design process using advanced energy performance simulation technology. Team coordination and building performance efficiency during the design process is aided by conducting a performance based assessment with comprehensive fully incorporated design, construction, energy, HVAC and annual building operation. The simulation methodology aids the performance based decision making which demonstrated through an office building complex. The engineering decisions were based on performance enhancement and overall energy demand reduction, which was evaluated on an annual basis. The building envelope’s dominant curtain wall system was analyzed in detail in order to demonstrate qualitative energy performance improvement. VAV and DOAS HVAC systems’ annual energy performance was estimated and evaluated from the aspect of end-use energy.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"126 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126281763","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}
{"title":"Effect of Bentonite Addition on Geotechnical Properties of Oil-Contaminated Sandy Soil","authors":"Amirhossein Mohammadi, T. Ebadi, M. Ahmadi","doi":"10.32732/JCEC.2018.7.4.153","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.4.153","url":null,"abstract":"Oil and its derivatives not only change the chemical and biological properties of the soils, but also affect their geotechnical properties. Effects of oil contamination on a sandy soil which mixed with bentonite was assessed in terms of compaction, shear strength, and consolidation behavior. The experiments were carried out by polluting dry sandy soil with 2.5, 5, 7.5, 10% w/w crude oil at different bentonite contents (0, 5, 10, 15, 20% w/w). Results of compaction tests indicated that at a fixed bentonite content, with increasing crude oil content, the maximum dry density increases, while the optimum water content decreases. Similarly, at a fixed contaminant content, increasing the bentonite content in the soil leads to increase in soil maximum dry density and the optimum moisture content. Moreover, direct shear tests revealed that at a specific bentonite content, higher contamination concentration causes lower internal friction angle. The effect of oil content on the coefficient of consolidation (Cv) and void ratio of soils with 0, 5, 10, 15, and 20 percent bentonite contents was studied. The results of consolidation tests indicated that at a fixed bentonite content Cv has an overall increasing pattern which is in its maximum amount at 5% oil content.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188038","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}
{"title":"Conservation of the Church and the Friary of “Santa Maria degli Angeli” in Atella (Potenza, Italy)","authors":"F. Lembo, F. Marino, Carmela Cancellara","doi":"10.32732/JCEC.2018.7.4.178","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.4.178","url":null,"abstract":"Built at the end of XV century and re-built in XVIII, as a consequence of many earthquakes, englobing the precious portal of a previous church of XIII, the complex set up by the Church of Santa Maria degli Angeli and the Friary of Minor Friars, expropriated by the unitary Italian State after 1860 and sold to private peoples, had a destiny common to many similar buildings in the south of Italy, becoming farm and agricultural products’ warehouse. Struck again by the earthquake of 1980, it has been the object of partial safeguard works, but is now abandoned and in ruin. Because of its strategic position, in a context very rich of environmental and historical-cultural goods, it could be easily restored and intended to be a youth hotel, fulfilling an investment of great value for the development of the regional culture and economy. Research done through the careful architectural and technological survey of existing building and the design of low-technology works of conservational reconstruction and structural-functional update, demonstrates the feasibility of hypothesis and its sustainability.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126276808","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}
Shakil Ahmed, Md. Ikram Ul Hoque, M. Islam, Mehrab Hossain
{"title":"A Reality Check of Status Level of Worker against Skilled Worker Parameters for Bangladeshi Construction Industry","authors":"Shakil Ahmed, Md. Ikram Ul Hoque, M. Islam, Mehrab Hossain","doi":"10.32732/JCEC.2018.7.3.132","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.3.132","url":null,"abstract":"Skilled worker is the main fuel to run the construction industry. To enhance construction management processes, worker is a vital factor. Lacking of skilled worker, have a huge negative impact on the construction cost, schedule and quality of construction work. Nine skilled worker parameter is setting out as Bangladesh perspective. The main objective of this study is to reality check of skilled worker parameter by evaluating the status level of worker against each parameter. The study was conducted by questionnaire survey. The questionnaire was designed by a comprehensive literature review and expert opinion. The data were collected through questionnaire survey among the construction workers in Bangladesh. The percentages of workers who satisfy the parameters of construction safety, materials, equipment and tools, labour law and BNBC are 19.35%, 6.45%, 9.68%, 4.87% and 2.30% respectively. The workers having the professional training, minimum education and minimum working experience are 6.45%, 46.06% and 62.50% respectively. And the physically fit worker is found 62.25% in this study. Increased numbers of skilled workers boost the construction process and productivity that creates a very positive impact in the construction industry and enriches the national economy of Bangladesh.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128309542","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}
{"title":"Numerical Simulation of Three Phase Displacement Characteristics of Foam Fluid In Homogeneous Porous Media","authors":"D. Du, D. Zhang","doi":"10.32732/JCEC.2018.7.3.141","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.3.141","url":null,"abstract":"Foam technology has found wide applications in enhanced oil recovery and greenhouse geological storage. In this paper, a numerical simulate is carried out with the stochastic bubble population balance model on the foam three phase displacement process in a homogeneous oil/water/gas coexistence porous media of liquid. The effects of the maximum equilibrium bubble density nmax and the foam generation rate Kg on foam displacement process is mainly discussed. Numerical results indicate that the oil phase can be displaced well by foam fluid. Larger nmax values lead to higher apparent viscosity of foam and higher the pressure difference, and with the increase of Kg, the number of foam can reach a balance in a short distance, so it has better displacement effect on the oil phase components. The results obtained in this paper have a certain guiding role in understanding the enhanced oil recovery mechanism of foam fluid.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115491179","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}
{"title":"Anhydrous Cooling Mode Applied in External cooling Equipment of HVDC Converter","authors":"Yu-liang Wen, Guangmin Wang, Zhi-min Lu, Jian-ye Chen","doi":"10.32732/JCEC.2018.7.3.149","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.3.149","url":null,"abstract":"Anhydrous Cooling Mode is that it consumes little water in the operation process. This paper made some investigates in the external cooling equipment which is currently applied in the HVDC converter substation. There are some anhydrous cooling modes in the HVDC converter substation. A case of anhydrous cooling mode which air cooler series with the water chiller applied in the long distance natural gas pipeline pressurization was introduced. It is recommended that the cooling system composed of air cooler in series with chilling water will be preferentially chosen as an anhydrous cooling mode applied in the HVDC converter external cooling equipment.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124837023","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}
{"title":"Research on Identification of Damage Development Mode of Rural Highway Asphalt Pavement Structure","authors":"Mengdi Han, Yihang Fu","doi":"10.32732/jcec.2018.7.3.124","DOIUrl":"https://doi.org/10.32732/jcec.2018.7.3.124","url":null,"abstract":"According to the damage condition of asphalt pavement of rural roads in Liaoning Province, five development modes of asphalt pavement damage were proposed to determine the damage condition of asphalt pavement in the investigation section. The trapezoidal and semi-trapezoidal membership functions are used to construct the membership matrix, and the fuzzy comprehensive evaluation model is established, and the weight vector of each factor is determined. Finally, fuzzy mathematics is used to determine the stage of the general development period of the structural damage of the road segment. The research results have certain guiding significance for the management and maintenance of rural road asphalt pavement in Liaoning Province.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134209012","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}
{"title":"Master Plan Preparation for Arakkonam Town using Remote Sensing and GIS","authors":"S. R, Murugasan Rajiah, Venkatesan Chinnappa","doi":"10.32732/jcec.2018.7.3.115","DOIUrl":"https://doi.org/10.32732/jcec.2018.7.3.115","url":null,"abstract":"The main objective of this paper is to prepare a master plan for Arakkonam town in India. The study illustrates the use of Geographic Information System (GIS) and Multicriteria evaluation (MCE) technique for the selection of suitable sites in the study area for urban development. Google Earth and Toposheet were used to generate various thematic layers using ArcGIS software. Soil, geology, geomorphology, groundwater, rail network, road network and land use/land cover layers were integrated and weighted overlay analysis was performed to arrive at the final site suitability map. The master plan was prepared by projecting the population for next 20 years by Geometric Growth Method for the study area and planning zones such as Residential, Commercial, Industrial, Educational and Recreational were delineated as per Urban and Regional Development Plans Formulation and Implementation (URDPFI) guidelines.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654105","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}
{"title":"Barriers to Implementation of Building Information Modeling (BIM) to the Construction Industry: A Review","authors":"Shakil Ahmed","doi":"10.32732/JCEC.2018.7.2.107","DOIUrl":"https://doi.org/10.32732/JCEC.2018.7.2.107","url":null,"abstract":"Construction industry is one of the largest economic sector in the world in 2017. And Building Information Modeling (BIM) is the powerful set of technology to design, construction and management has been strengthen the construction industry. BIM has significant benefits for the project lifecycle even after it’s lifecycle but this benefits can’t gain by the project because of failure to successful implementation of BIM technology to the construction industry. The main objectives of this study is to identify the most crucial barrier to implementation of BIM and develop a relative rank with their relative impact on this issue. The study was conducted by a comprehensive literature review and necessary data was collected by literature review also. A set of barrier was developed by the literature review containing 37 barrier which curb the implementation of BIM technology to the construction sector. Relative rank based on their frequency and relative impact was calculate for each barrier identified in the literature review. The five most crucial barrier to the implementation of BIM are B17 (Social and habitual resistance to change), B19 (Traditional methods of contracting), B3 (Training expenses and the learning curve are too expensive), B20 (High cost of software purchasing) and B33 (Lack of awareness about BIM). And the five most impactful barrier are B19 (Traditional methods of contracting), B17 (Social and habitual resistance to change), B33 (Lack of awareness about BIM), B2 (Unavailability of proper training on BIM) and B28 (Lack of BIM experts). To gain the tremendous benefits of BIM technology, it is necessary to overcome the barrier based on priority with the help of government and all the stakeholder of project.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128119687","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}
{"title":"The Interaction between the Bulking Water and Pipe Surface and Their Correlations in Water Distribution System","authors":"Ruilian Li, Ming-qing Feng, Xiaohui Bai","doi":"10.32732/jcec.2018.7.2.83","DOIUrl":"https://doi.org/10.32732/jcec.2018.7.2.83","url":null,"abstract":"The pipelines corrosion can result discolor and particle increase in tap water and the complaints from the consumers. It also has the economic and hydraulic impacts for the replacement of broken pipes and fouling of corroded pipes. This paper aimed to investigate the effect of processed drinking water on metal pipe corrosion in water distribution system and the relations between the bulking water quality and pipe corrosion. It was found that there is a close relation between iron corrosion and water quality parameters in water distribution pipelines. It was shown that lower pH and alkalinity can increase the corrosion rate, while higher chlorides and sulfate may cause pitting corrosion. DOC in pipe water would be beneficial for microbial induced corrosion.","PeriodicalId":243788,"journal":{"name":"Journal of Civil Engineering and Construction","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123244758","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}