A building’s energy consumption can be greatly reduced by improving its airtightness. Thus, when designing new and retrofitting existing buildings,
通过提高建筑物的密封性，可以大大降低建筑物的能耗。因此，在设计新建筑和改造现有建筑时，
{"title":"EVALUATING THE AIRTIGHTNESS OF RESIDENTIAL BUILDINGS BY USING PREDICTIVE MODELS","authors":"Hrvoje Krstić, Željko Koški, Dario Zečević","doi":"10.13167/2015.11.7","DOIUrl":"https://doi.org/10.13167/2015.11.7","url":null,"abstract":"A building’s energy consumption can be greatly reduced by improving its airtightness. Thus, when designing new and retrofitting existing buildings,","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"62-70"},"PeriodicalIF":0.2,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266417","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}
Angle or L-section bars are commonly used as non-structural elements in modern buildings, such as carriers of massive and expensive glass walls. While
在现代建筑中，角钢或l型钢筋通常用作非结构构件，如巨大而昂贵的玻璃墙的载体。而
{"title":"STRESS OF ANGLE SECTION SUBJECTED TO TRANSVERSAL LOADING ACTING OUT OF THE SHEAR CENTER","authors":"Filip Anić, D. Penava","doi":"10.13167/2015.10.2","DOIUrl":"https://doi.org/10.13167/2015.10.2","url":null,"abstract":"Angle or L-section bars are commonly used as non-structural elements in modern buildings, such as carriers of massive and expensive glass walls. While","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"10-21"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266176","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}
Structuring a project team is highly sensitive task, so numerous methods which address the problem have emerged. One of the most effective methods is structuring teams by the team members’ affinities and talents presented as team roles. In this paper, we applied Belbin’s Self-Perception Inventory in order to investigate the following questions: Which are the most engaged team roles? How does the absence of the most engaged team members affect the team’s efficiency? How does this change of the team environment affect the member? Our results show that, even in small project teams, changes in team structure will surely have a negative effect on the team’s organizational culture in a short run, and even more importantly they decrease the team’s overall productivity. Also, the changes had a negative effect at the individual level ; teams had trouble integrating new members, and individuals had trouble integrating themselves in new teams.
{"title":"Impact of changes in a project team structure on the team performance","authors":"Ivana Šandrk Nukić, M. Galić, Zlata Dolaček-Alduk","doi":"10.13167/2015.10.7","DOIUrl":"https://doi.org/10.13167/2015.10.7","url":null,"abstract":"Structuring a project team is highly sensitive task, so numerous methods which address the problem have emerged. One of the most effective methods is structuring teams by the team members’ affinities and talents presented as team roles. In this paper, we applied Belbin’s Self-Perception Inventory in order to investigate the following questions: Which are the most engaged team roles? How does the absence of the most engaged team members affect the team’s efficiency? How does this change of the team environment affect the member? Our results show that, even in small project teams, changes in team structure will surely have a negative effect on the team’s organizational culture in a short run, and even more importantly they decrease the team’s overall productivity. Also, the changes had a negative effect at the individual level ; teams had trouble integrating new members, and individuals had trouble integrating themselves in new teams.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"58-66"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266260","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}
Constructing embankments on compressible foundation soil normally requires soil improvement measures to reduce the amount and duration of settlement. In the most difficult cases, the soil is improved by using pile foundations. When constructing pile foundations, it is necessary to ensure efficient load transfer from the embankment to the piles, which can be achieved using reinforced soil construction with geosynthetics as reinforcement material. In this paper, we compare the calculations of a bearing capacity of such a platform according to the British and the German standards on the example of a level crossing over a railway line. We describe other calculation methods, critically reviewing the fundamental mechanisms of the reinforcement effects in the calculations.
{"title":"Load transfer platforms - comparison of design methods","authors":"Jelena Kaluđer, M. Mulabdić, K. Minažek","doi":"10.13167/2015.10.4","DOIUrl":"https://doi.org/10.13167/2015.10.4","url":null,"abstract":"Constructing embankments on compressible foundation soil normally requires soil improvement measures to reduce the amount and duration of settlement. In the most difficult cases, the soil is improved by using pile foundations. When constructing pile foundations, it is necessary to ensure efficient load transfer from the embankment to the piles, which can be achieved using reinforced soil construction with geosynthetics as reinforcement material. In this paper, we compare the calculations of a bearing capacity of such a platform according to the British and the German standards on the example of a level crossing over a railway line. We describe other calculation methods, critically reviewing the fundamental mechanisms of the reinforcement effects in the calculations.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"30-40"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266195","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}
The latest final draft amendment EN 1993-4- 1:2007/FprA1 brings a variety of changes that will apparently soon become valid. Present article deals with the issue(s) of silo steel wall design from the aspect of proposed changes related to the assessment of buckling resistance of the silo steel wall(s). The parametric analysis was performed according to the current standard, HRN EN 1993-4-1, and proposed amendment, EN 1993-4-1:2007/FprA1 by taking into account the silo fabrication quality parameter, as well as, the variations of the steel quality, wall thickness and wall curvature radius. The obtained results indicate that the new proposed amendment ensures a more realistic assessment of the silo steel wall buckling resistance. In that way the savings of material and economic benefit can be achieved easily.
最新的最终修订草案EN 1993-4- 1:2007/FprA1带来了各种变化，这些变化显然很快就会生效。本文从对筒仓钢壁抗屈曲性能的评估提出改进意见的角度，讨论了筒仓钢壁设计中的一些问题。根据现行标准HRN EN 1993-4-1和提出的修订标准EN 1993-4-1:2007/FprA1进行参数分析，考虑筒仓制造质量参数以及钢质量、壁厚和壁曲率半径的变化。计算结果表明，修正后的方法能够更真实地评估筒仓钢壁的抗屈曲能力。这样可以很容易地节省物质和经济效益。
{"title":"PARAMETRIC ANALYSIS OF THE BUCKLING RESISTANCE OF THE SILO STEEL WALL","authors":"Davor Skejić, Marija Cavor","doi":"10.13167/2015.10.6","DOIUrl":"https://doi.org/10.13167/2015.10.6","url":null,"abstract":"The latest final draft amendment EN 1993-4- 1:2007/FprA1 brings a variety of changes that will apparently soon become valid. Present article deals with the issue(s) of silo steel wall design from the aspect of proposed changes related to the assessment of buckling resistance of the silo steel wall(s). The parametric analysis was performed according to the current standard, HRN EN 1993-4-1, and proposed amendment, EN 1993-4-1:2007/FprA1 by taking into account the silo fabrication quality parameter, as well as, the variations of the steel quality, wall thickness and wall curvature radius. The obtained results indicate that the new proposed amendment ensures a more realistic assessment of the silo steel wall buckling resistance. In that way the savings of material and economic benefit can be achieved easily.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"47-57"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2015.10.6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266250","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}
Velimir Golub, Darko Dubovicki, B. Lazar, D. Pichler
The goal nowadays is to save electrical energy required for water extraction, conditioning and distribution to consumers since it represents the biggest cost in terms of water supply. The topicality of the issue prompted Vodovod-Osijek d.o.o. to analyze the potential electrical energy savings in terms of water extraction and distribution to the city of Osijek. This paper describes water-treatment-related processes along with a comparison of electrical energy consumption with and without a frequency converter.
{"title":"COST OPTIMIZATION OF ELECTRICAL ENERGY USED FOR WATER EXTRACTION","authors":"Velimir Golub, Darko Dubovicki, B. Lazar, D. Pichler","doi":"10.13167/2015.10.1","DOIUrl":"https://doi.org/10.13167/2015.10.1","url":null,"abstract":"The goal nowadays is to save electrical energy required for water extraction, conditioning and distribution to consumers since it represents the biggest cost in terms of water supply. The topicality of the issue prompted Vodovod-Osijek d.o.o. to analyze the potential electrical energy savings in terms of water extraction and distribution to the city of Osijek. This paper describes water-treatment-related processes along with a comparison of electrical energy consumption with and without a frequency converter.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"85 1","pages":"1-9"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266006","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}
M. Galić, Ralf Thronicke, B. Schreck, Immo Feine, H. Bargstädt
Modeling and simulation of organizational processes are established methodologies and tools in most industries. In civil engineering, however, this is
在大多数行业中，组织过程的建模和仿真是公认的方法和工具。然而，在土木工程中，这是
{"title":"PROCESS MODELING AND SCENARIO SIMULATION IN CONSTRUCTION USING ENTERPRISE DYNAMICS SIMULATION SOFTWARE","authors":"M. Galić, Ralf Thronicke, B. Schreck, Immo Feine, H. Bargstädt","doi":"10.13167/2015.10.3","DOIUrl":"https://doi.org/10.13167/2015.10.3","url":null,"abstract":"Modeling and simulation of organizational processes are established methodologies and tools in most industries. In civil engineering, however, this is","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"22-29"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2015.10.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266185","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}
The paper presents experimental designs that can be used in modeling of the air-tightness of buildings as second-order functions using response surfac
本文提出了利用响应面将建筑物气密性作为二阶函数进行建模的实验设计
{"title":"EXPERIMENTAL DESIGN APPLIED TO MODELING OF THE AIR-TIGHTNESS OF A BUILDING","authors":"I. Miličević, I. I. Otkovic, Željko Koški","doi":"10.13167/2015.10.5","DOIUrl":"https://doi.org/10.13167/2015.10.5","url":null,"abstract":"The paper presents experimental designs that can be used in modeling of the air-tightness of buildings as second-order functions using response surfac","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"41-46"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266238","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}
Microsimulation models are frequently used in traffic analysis. Various optimization methods are used in calibration, and the one method that has shown success is neural networks. This paper shows the responses of neural networks during calibration of a microsimulation traffic model. We analyzed two calibration methods by applying neural networks and comparing their neural network learning (according to their achieved correlation and the mean error of prediction) and their generalization ability (comparison of generalization results was analyzed in two steps). The best correlation between the microsimulation results and neural network prediction was 88.3%, achieved for the traveling time prediction, on which the first calibration method is based.
{"title":"ANALYSIS OF NEURAL NETWORK RESPONSES IN CALIBRATION OF MICROSIMULATION TRAFFIC MODEL","authors":"I. I. Otkovic, D. Varevac, M. Šraml","doi":"10.13167/2015.10.8","DOIUrl":"https://doi.org/10.13167/2015.10.8","url":null,"abstract":"Microsimulation models are frequently used in traffic analysis. Various optimization methods are used in calibration, and the one method that has shown success is neural networks. This paper shows the responses of neural networks during calibration of a microsimulation traffic model. We analyzed two calibration methods by applying neural networks and comparing their neural network learning (according to their achieved correlation and the mean error of prediction) and their generalization ability (comparison of generalization results was analyzed in two steps). The best correlation between the microsimulation results and neural network prediction was 88.3%, achieved for the traveling time prediction, on which the first calibration method is based.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"6 1","pages":"67-76"},"PeriodicalIF":0.2,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266266","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}
Airtightness plays a significant role in the energy efficiency of buildings. In this paper, we investigated how varying the type of window affects the airtightness values of residential units. We studied three sets of residential units, each comprising two residential units with the same geometry and year of construction, varying only the installed window type and window-frame material. A brief explanation is included of the blower-door method, used in field-testing the airtightness of residential units. Replacing the old windows in the residential units with newer windows significantly improved the airtightness. To generalize these results, further research is needed with larger samples.
{"title":"INFLUENCE OF WINDOW TYPE ON THE AIRTIGHTNESS OF RESIDENTIAL UNITS","authors":"Hrvoje Krstić, Željko Koški, Matija Tomljanović","doi":"10.13167/2014.9.4","DOIUrl":"https://doi.org/10.13167/2014.9.4","url":null,"abstract":"Airtightness plays a significant role in the energy efficiency of buildings. In this paper, we investigated how varying the type of window affects the airtightness values of residential units. We studied three sets of residential units, each comprising two residential units with the same geometry and year of construction, varying only the installed window type and window-frame material. A brief explanation is included of the blower-door method, used in field-testing the airtightness of residential units. Replacing the old windows in the residential units with newer windows significantly improved the airtightness. To generalize these results, further research is needed with larger samples.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"5 1","pages":"34-40"},"PeriodicalIF":0.2,"publicationDate":"2014-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66265905","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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