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

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Relation of Natural Frequencies to Traffic Pedestrians’ Comfort of Some Steel Footbridges 钢桥固有频率与交通行人舒适度的关系
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0001
Moga Cătălin, Drăgan Delia, Nerișanu Raluca
{"title":"Relation of Natural Frequencies to Traffic Pedestrians’ Comfort of Some Steel Footbridges","authors":"Moga Cătălin, Drăgan Delia, Nerișanu Raluca","doi":"10.2478/ouacsce-2021-0001","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0001","url":null,"abstract":"Abstract In this paper several aspects regarding the dynamic behaviour of the steel footbridge structures under the action of the loads generated by the pedestrians’ displacement, correlated with the traffic comfort of the pedestrians crossing the structure are presented. The crossing pedestrians’ comfort criterion requires the values of vibration frequencies and accelerations of the structures in certain limits so that the vibration amplification or resonance is avoided. The paper takes under investigation eight footbridges on steel, composite steel-concrete girders and a cable stayed structure from the viewpoint of frequencies in vibration Mode 1 in a vertical plane, generated by their own weight - natural frequency, or from a partial pedestrian loading, as well as the resulting resonance risk and the traffic comfort.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"76 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":"127330785","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
Using Earth as a Construction Material 利用地球作为建筑材料
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0015
Șeitan Tudorel
{"title":"Using Earth as a Construction Material","authors":"Șeitan Tudorel","doi":"10.2478/ouacsce-2021-0015","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0015","url":null,"abstract":"Abstract Traditionally, the greatest weaknesses of earthen constructions are water infiltration and freeze-thaw cycles. The purpose of this article is to analyze the characteristics of the soil in order to use it as a building material and the ways to improve it using various additives in the mixture or the possible treatment of exposed surfaces.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"23 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":"129555369","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
Assessment of Water Quality from Coastal Lakes for Use in Irrigation 沿海湖泊灌溉用水水质评价
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0022
M. Stănescu, C. Buta, G. Mihai
{"title":"Assessment of Water Quality from Coastal Lakes for Use in Irrigation","authors":"M. Stănescu, C. Buta, G. Mihai","doi":"10.2478/ouacsce-2021-0022","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0022","url":null,"abstract":"Abstract The assessment of water quality from coastal lakes for irrigation purposes has emerged from the practical necessity of the land improvements companies, in order to determine the irrigation class of water from coastal lakes that could represent the water source for irrigation facilities in the coastal area. These assessments are the support for the hydro-saline dynamics of the soil, so that the intervention in the environment is harmoniously assimilated to it.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"9 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":"129424854","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
Traditional Methods and Techniques Used for Earthen Buildings 土制建筑的传统方法和技术
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0012
Tudorel Șeitan, A. Grămescu
{"title":"Traditional Methods and Techniques Used for Earthen Buildings","authors":"Tudorel Șeitan, A. Grămescu","doi":"10.2478/ouacsce-2021-0012","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0012","url":null,"abstract":"Abstract In all arid regions of the globe, but also in those with temperate climates, earth was the predominant building material. In modern times, at least a third of the planet’s population lives in earthen houses. The task of providing the necessary construction materials is proving to be quite difficult, even in highly developed countries. Moreover, the irrational exploitation of resources and the elevated levels of production and consumption is not only a waste, but also a source of environmental pollution. In this context, we can talk about the earth as a naturally abundant material that could be the most important resource for construction. It can be both a low-cost building material, but also a material that can meet the current requirements for efficient, low-carbon emission and low-carbon footprint housing.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"80 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":"132520222","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
Sizing and Simulation for Optimization of a Ventilation Installation Using Artificial Intelligence 基于人工智能的通风装置优化选型与仿真
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0005
P. Toma
{"title":"Sizing and Simulation for Optimization of a Ventilation Installation Using Artificial Intelligence","authors":"P. Toma","doi":"10.2478/ouacsce-2021-0005","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0005","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 ventilation installation using artificial intelligence for its implementation. The mathematical equations implemented in the program with which the dimensioning and simulation are done are presented. A neuro-fuzzy system was used to generate the fan characteristics.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"58 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":"115219331","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
Considerations Regarding the Establishment of the Location for a Residential Building in the Project phase Based on Energy Consumption 基于能耗的住宅建筑项目阶段选址的思考
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0007
Lucian Cîrstolovean
{"title":"Considerations Regarding the Establishment of the Location for a Residential Building in the Project phase Based on Energy Consumption","authors":"Lucian Cîrstolovean","doi":"10.2478/ouacsce-2021-0007","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0007","url":null,"abstract":"Abstract In this paper we propose to present the analysis of energy consumption for heating for a building in the design phase depending on the conditions of location in the field. We analyzed 3 variants of the location of the building. Establishing the location of the location for a building according to the estimation of energy consumption in the project phase is in accordance with the requirements established in Directive 2010/31 / EU. Design decisions can also have an impact on land use, resource use and the production of waste and emissions throughout the life cycle of the building.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"8 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":"117031323","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
Establishing the Current State of Research on Urban Regeneration in Waterfront Cities 建立滨水城市更新研究现状
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0016
Nicolae-Costin Mociu
{"title":"Establishing the Current State of Research on Urban Regeneration in Waterfront Cities","authors":"Nicolae-Costin Mociu","doi":"10.2478/ouacsce-2021-0016","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0016","url":null,"abstract":"Abstract The purpose of this study is to combine two bodies of literature and theory: the first on urban change and coastal regeneration, and the second on the ideas of concerns that influence and shape urban regeneration practice. The goal of this paper is to conduct a review of the pertinent literature on this subject. It will analyze urban change theories as well as the key causes that have shaped transformation over the last few decades. Additionally, it aims to define urban regeneration functionally, to explain its principles and features, and to present a brief history of its growth in Romania. Finally, this work seeks to establish the research niche by examining the evolution of waterfront urban rehabilitation.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"21 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":"114858408","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
Criteria and Procedures of Analysis Applicable in the Evaluation of the Archaeological Heritage 适用于考古遗产评估的分析标准和程序
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0014
A. Grămescu, A. Barbu, Alexandru Ioniță
{"title":"Criteria and Procedures of Analysis Applicable in the Evaluation of the Archaeological Heritage","authors":"A. Grămescu, A. Barbu, Alexandru Ioniță","doi":"10.2478/ouacsce-2021-0014","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0014","url":null,"abstract":"Abstract The implementation of the European policy in the field of built heritage involved, for each country, the creation of the legal, administrative and financial means necessary for the implementation of the rehabilitation policy. The research procedures and the intervention measures must be correlated with the degree of damage (degradation) of the materials, as an effect of earthquakes that the construction has endured, of others specific exploitation actions, differential land settlements, uncontrolled human interventions or environmental factors. Archaeologists around the world have developed a procedure for evaluating archaeological resources, so it appeared in the early 1970s, an example being that developed by Schaffer and Gumerman in 1977. Archaeological sites have the ability to demonstrate how the society functioned at a given time, the level of civilization, the progress of science and technology, what processes have taken place, how the activity unfolded and the extent of a technological practice or other occupation history. They can demonstrate the main characteristics of a place or process that may be rare or common. In the article, the authors develop the principles that lie at the base of quantifying the values of archaeological heritage, presenting some case studies.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"1 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":"134176808","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
Tendencies of Adapting Building Materials and Constructive Solutions to the Present Climate Changes 建筑材料适应当前气候变化的趋势及建设性解决方案
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0010
Draghici Gabriela, Filip Cosmin, Bizu Alexandru Nicolae
{"title":"Tendencies of Adapting Building Materials and Constructive Solutions to the Present Climate Changes","authors":"Draghici Gabriela, Filip Cosmin, Bizu Alexandru Nicolae","doi":"10.2478/ouacsce-2021-0010","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0010","url":null,"abstract":"Abstract The changes occurred on the climate are a reality that produces changes within the socio-economic environment. Climate change is largely due to greenhouse gas emissions generated by human, domestic and economic activities. In this climate, the constructive solutions of buildings must take into account climate changes and meet new requirements. In this context, building materials must improve and correspond to the new paradigm so as to fulfill their basic role, namely: - creating an indoor climate corresponding to the hygienic-sanitary and thermal, - comfort requirements in residential and socio-cultural buildings, - ensuring the necessary indoor climate for carrying out economic activities reducing, as much as possible, the energy consumption for space heating.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"38 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":"134510052","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
Aspects Regarding Movila Verde-Independenta Water Supply Duct Protection from Water Hammer 关于独立供水管道防水锤的几个问题
Ovidius University Annals of Constanta - Series Civil Engineering Pub Date : 2021-12-01 DOI: 10.2478/ouacsce-2021-0021
C. Nitescu, A. Constantin
{"title":"Aspects Regarding Movila Verde-Independenta Water Supply Duct Protection from Water Hammer","authors":"C. Nitescu, A. Constantin","doi":"10.2478/ouacsce-2021-0021","DOIUrl":"https://doi.org/10.2478/ouacsce-2021-0021","url":null,"abstract":"Abstract In the context of sustainable development effort, the water supply systems in the rural area of Constanta County should be optimally designed, so that their safe, efficient operation is assured. The results obtained by numerical simulation showed that Movila Verde -Independenta water supply duct might be subject of cavitation occurrence during hydraulic shock. Further investigations showed that the duct is adequately protected by a relatively short closing law of the check valve and three air valves mounted in the nodes where cavitation might occur. Minimal pressure increases from -10 mwc to -0.6 mwc because of these protection measures. Furthermore, the slight increase of maximal pressure does not require additional protection devices.","PeriodicalId":345086,"journal":{"name":"Ovidius University Annals of Constanta - Series Civil Engineering","volume":"1 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":"130228964","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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