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Ovidius University Annals of Constanta - Series Civil Engineering最新文献

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On the Fractal Characteristics of Some Meteorological Extreme Series Recorded at Constanta, Romania 罗马尼亚康斯坦察气象极端序列的分形特征
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0009
A. Bărbulescu, Dumitriu Cristian Ștefan
{"title":"On the Fractal Characteristics of Some Meteorological Extreme Series Recorded at Constanta, Romania","authors":"A. Bărbulescu, Dumitriu Cristian Ștefan","doi":"10.2478/ouacsce-2021-0009","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0009","url":null,"abstract":"Abstract The study of hydro-meteorological series is important for planning agricultural activities, managing water resources, and taking measures to prevent the effects of natural hazards. Therefore, here we analyze the fractal characteristics of the temperature series recorded at Constanta, Romania. The studied series are the annual mean maximum annual and minimum annual temperatures recorded during 1961-2018.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127365103","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
The Green and Digital Transformation - the New Challenges of the Construction Market 绿色和数字化转型——建筑市场的新挑战
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0003
A. Marichova
{"title":"The Green and Digital Transformation - the New Challenges of the Construction Market","authors":"A. Marichova","doi":"10.2478/ouacsce-2021-0003","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0003","url":null,"abstract":"Abstract The new EU industrial strategy proposes new measures to strengthen the sustainability of the European single market (especially in times of crisis) and to accelerate the green and digital transformation. It focuses on 14 industrial ecosystems (one of which is construction), which face the most important challenges of achieving the climate, sustainability and digital transformation goals that are key to market competitiveness. The purpose of the study is: 1) Analysis of the problems related to the need to accelerate the green and digital transformation of the construction market, 2) Development of models that support and ensure the double transition in the construction market.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125238049","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
Behaviour Analysis of a Cross-Girder to Tie-Girder Connection at a Road Bridge Structure 某公路桥结构跨梁与系梁连接的受力分析
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0004
M. Suciu, R. Nerișanu, D. Drăgan
{"title":"Behaviour Analysis of a Cross-Girder to Tie-Girder Connection at a Road Bridge Structure","authors":"M. Suciu, R. Nerișanu, D. Drăgan","doi":"10.2478/ouacsce-2020-0004","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0004","url":null,"abstract":"Abstract This paper presents several theoretical issues regarding the behaviour and calculus of the connections made with end plates and bolts, including the cover plate for the tensile stress flange. An example for calculating the hybrid connection solution is also provided, when end plates are joined together with bolts and an additional cover plate over the joint area, at the elongated flange of the girder, a solution applied for a bridge for which the feasibility study was performed.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133661388","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
Effects of Shear Lag in Steel Box Girders of a Crane Runway 某起重机跑道钢箱梁剪力滞效应研究
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0003
C. Moga, D. Drăgan, R. Nerișanu
{"title":"Effects of Shear Lag in Steel Box Girders of a Crane Runway","authors":"C. Moga, D. Drăgan, R. Nerișanu","doi":"10.2478/ouacsce-2020-0003","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0003","url":null,"abstract":"Abstract The term of shear lag is related to the discrepancies between the approximate theory of the bending of beams and their real behaviour. It refers to the increases of the bending stresses near the flange-to-web junctions and the corresponding decreases in the flange stresses away from these junctions. In the case of wide flanges of plated structures, shear lag caused by shear strains, which are neglected in the conventional theory, may be taken into account by a reduced flange width concentrated along the webs of the steel girders. In EN 1993-1-5, the concept of taking shear lag into account is based on effective width of the flange which is defined in order to have the same total normal force in the gross flange subjected to the real transverse stress distribution as the effective flange subjected to a uniform stress equal to the maximum stress of the real transverse distribution. Some aspects concerning the shear lag phenomenon and a working example for a box girder of a heavy crane runway to illustrate the determination of the shear lag effect are also presented.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130079739","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
Sizing and Simulation for Optimization of a Water Pumping Installation Using Fuzzy Logic 基于模糊逻辑的水泵装置优化选型与仿真
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0010
P. Toma
{"title":"Sizing and Simulation for Optimization of a Water Pumping Installation Using Fuzzy Logic","authors":"P. Toma","doi":"10.2478/ouacsce-2020-0010","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0010","url":null,"abstract":"Abstract In this article we present the way how to create a program in the Scilab-Xcos environment with which it can be dimensioned, mathematically modeled and simulated a water pumping installation. The mathematical equations implemented in the program with which the dimensioning and simulation are done are presented. Fuzzy logic was used to generate the pump characteristics.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631948","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
Role of the Construction Market and the Firm for Sustainable Development and Sustainable Construction 建筑市场与企业在可持续发展与可持续建设中的作用
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0005
A. Marichova
{"title":"Role of the Construction Market and the Firm for Sustainable Development and Sustainable Construction","authors":"A. Marichova","doi":"10.2478/ouacsce-2020-0005","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0005","url":null,"abstract":"Abstract Sustainable development and sustainable construction present every firm with new challenges. The concept of sustainability is the new driving force for the firm and decision making, which are part of the overall sustainable strategy. The implementation of this strategy is a factor for creating, offering and realizing additional economic, social and environmental value for the client, stakeholders and society as a whole, and building competitive advantages. Detailed knowledge of the principles and requirements for sustainability and the necessary changes at the market and company level are mandatory for every construction manager. The main goal of the research is 1) analysis of the role of the construction market and the firm for sustainable development and sustainable construction, 2) outlining the necessary changes in the organization and management of the firm in order to create sustainable construction firm and development sustainable construction.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127027545","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
Flood Risk Assessment Based on Flood Hazard and Vulnerability Indexes 基于洪水危险性和脆弱性指数的洪水风险评估
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0014
C. Buta, G. Mihai, M. Stănescu
{"title":"Flood Risk Assessment Based on Flood Hazard and Vulnerability Indexes","authors":"C. Buta, G. Mihai, M. Stănescu","doi":"10.2478/ouacsce-2020-0014","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0014","url":null,"abstract":"Abstract Within this paper, a methodology for assessing the flood risk was developed by extracting the essential factors that favor the generation of flood risk. These factors, that had a sufficient number of data for a proper comparative analysis, are: potentially affected population based on population density, total agricultural area, total built-up area and the historical maximum amount of precipitation recorded in 24 hours. The flood risk assessment is presented in the form of indices calculation for all these factors and maps generated which representing the results of the calculation of the above-mentioned factors and the results of the flood risk index calculation. Urban floods have particularities that must be presented in detail to understand the flood phenomenon, which is why this paper takes into consideration these areas. In order to determine the probability of urban floods, all disturbing factors that may affect the urban area must be taken into account. The method presented in this paper can be used in sectoral planning activities and integrated planning studies, and for damage assessment.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124840761","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: 3
Hydrodinamic Processes Control System for Wastewater Using Artificial Intelligence Techniques 基于人工智能技术的污水水力过程控制系统
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0001
Anamaria-Cătălina Nițu
{"title":"Hydrodinamic Processes Control System for Wastewater Using Artificial Intelligence Techniques","authors":"Anamaria-Cătălina Nițu","doi":"10.2478/ouacsce-2020-0001","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0001","url":null,"abstract":"Abstract In this study, it is presented a multicriterial approach of the automatic management techniques of industrial installations using wastewater. This has an extremely positive effect on the economical results of the entire irrigation and wastewater equipment. Choosing the automatic management by a neural networks system is the result of several stages of analysis, modelling and simulation of hydrodynamic processes that take place within the wastewater installation on each equipment and in its integrity. The study exposes an analysis and offers a solution of automatic management of the installation of irrigation using wastewater.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123773258","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
Sediment thickness in the Bay of Bengal and Andaman Sea compared with topography and geophysical settings by GMT 孟加拉湾和安达曼海的沉积物厚度与格林尼治时间地形和地球物理环境的比较
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0002
Polina Lemenkova
{"title":"Sediment thickness in the Bay of Bengal and Andaman Sea compared with topography and geophysical settings by GMT","authors":"Polina Lemenkova","doi":"10.2478/ouacsce-2020-0002","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0002","url":null,"abstract":"Abstract The study presents an analysis of the sediment thickness compared with bathymetric and geophysical settings in the Bay of Bengal and Andaman Sea, Indian Ocean. It uses a combination of the high-resolution data: topographic GEBCO, satellite and marine gravity anomalies, EGM2008 geoid and GlobSed to visualize the correlation between relief, gravity and trends in continent-ocean sediment transport. The results include thematic maps and 3D model showing increased sediment thickness in the Bengal Fan (8,0 to 8,2 km) in NE direction with maximum in Ganges Fan (16,2 km), and southward decrease in the Andaman Sea from Irrawaddy river mouth (6-7 km) to the Strait of Malacca (1-2 km). All maps and 3D model have been plotted by Generic Mapping Tools (GMT) cartographic scripting toolset version 6.0.0.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130413574","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
Retained Water in the Commune of Gogounou in Benin: Inventory, Characterization and Management Mode 贝宁gogoounou公社留存水:库存、特征与管理模式
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2020-12-01 DOI: 10.2478/ouacsce-2020-0013
Roger Masso Sourogou, F. Hountondji
{"title":"Retained Water in the Commune of Gogounou in Benin: Inventory, Characterization and Management Mode","authors":"Roger Masso Sourogou, F. Hountondji","doi":"10.2478/ouacsce-2020-0013","DOIUrl":"https://doi.org/10.2478/ouacsce-2020-0013","url":null,"abstract":"Abstract The present work was carried out with the aim of knowing the characteristics and the management made of the agropastoral dams of the commune of Gogounou which are of a great utility for the local populations. To do this, twenty (20) dams were chosen according to the strategic interest that they present for the population, that is to say a polling rate of 87% on all the dams of the municipality. An inventory of the dams was made according to quantitative and qualitative indicators. The results showed the existence of (04) groups of dams according to the technical characteristics and some qualitative variables. The parameters that lead to the degradation of these dams are often related to the age and type of dam and the place of installation. Groups (2 and 4) are agropastoral dams (100%) and more than half of the dams are on flood sites. Results have also shown that there are management committees around all the dams in the commune of Gogounou, but which are mostly non-functional at almost 75%. Also, it has been found that the breeders are mostly transhumant and sedentary who use (100%) dams for watering animals. This cohabitation between farmers and pastoralists does not occur without major conflicts, in particular, that of land whose settlement is generally peaceful. In short, the management of the dams in the commune of Gogounou is a real challenge to be met for a better development, both economically and socially to guarantee the prosperity of the actors and prepare them to adapt to the vagaries of the climate future.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129804931","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
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