Advancements in Civil Engineering & Technology最新文献

{"title":"Modelling Radiation Damping in Rocking Wall Systems","authors":"Shakib Reza, Ghadir Haikal","doi":"10.31031/ACET.2018.02.000536","DOIUrl":"https://doi.org/10.31031/ACET.2018.02.000536","url":null,"abstract":"","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122127188","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":"Tensile Behavior of Single Cast-in Anchors in Plastic Hinge Zones","authors":"Jian Zhao, Zhibin Lin","doi":"10.31031/ACET.2018.02.000535","DOIUrl":"https://doi.org/10.31031/ACET.2018.02.000535","url":null,"abstract":"Cast-in concrete anchors and headed studs, embedded in concrete, are used to connect structural steel members and concrete. Typical embedded connections include brace-column connections and girder-wall connections. Such connections are a critical component in composite construction between steel and concrete members, affecting structural performance during earthquake events. For example, shake table tests of structure models have shown that the embedded connections are susceptible to damage in earthquakes, which in turn disturbs the desired structural performance [1,2]. Typical failure modes for cast-in anchors in tension are anchor steel failure and concrete breakout failure. Anchor steel failure is caused by fracture of an anchor shaft in tension while concrete breakout failure is marked by a concrete cone broken away from the base concrete, in which the connection is located. Concrete breakout failure occurs when anchors are located close to an edge or with a small embedment depth. Concrete breakout is a brittle failure mode and thus not preferred for anchor connections in seismic zones [3]. The well-established design procedures for concrete anchors, such as those stipulated in ACI 318-11, do not apply to the anchors installed in plastic hinge zones. This is because the concrete in plastic hinge zones likely develops substantial damaged during an earthquake while the design procedures are based on experimental tests of anchors in concrete that is not stressed/cracked.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125378368","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":"Analytical Solutions of a Conduction Problem with Two Different Kinds of Boundary Conditions","authors":"Z. Fu, Q. Zhong, Sheng-shui Chen","doi":"10.31031/ACET.2018.02.000532","DOIUrl":"https://doi.org/10.31031/ACET.2018.02.000532","url":null,"abstract":"Conduction problems are widely encountered in science and engineering, such as heat transfer through conductive materials [1] and water flow through porous media [2]. Such physical processes are governed by similar differential equations and are studied traditionally by seeking the mathematical solutions. However, analytical solutions can only be derived under very limited simple boundary and initial conditions [3]. Therefore, much efforts have been spent in developing numerical tools since the popularization of computers [4], and the finite element method (FEM) is, probably, the most successful and widely used one [5]. Use of the FEM usually needs the discretization of both the space and the time, and a more refined mesh and a smaller time step generally yield more exact numerical results. However, this is not the case for conduction problems as unreasonable oscillatory results are often obtained for a given mesh if the time step is smaller than a threshold value [6-9]. For instance, use of four-noded rectangular elements for conduction problems without causing oscillatory results needs the time increment (Δt) larger than L2c/(2k), while for eight-noded elements the threshold is reduced to L2c/(20k). Herein, L denotes the characteristic length of elements while c and k are volumetric capacity and conductivity coefficient of the concerned material [7]. The dilemma, on the other hand, is that a small enough time step is required for numerical convergence for problems where nonlinear material behavior presents [8-10]. It was found that the traditional mass-distributing scheme, which yields the so-called consistent mass matrix, may generate an incorrect neighboring nodal response even though the physical laws are correctly applied at the elementary level. Pan et al. [9] therefore suggested two new mass-distributing schemes which were free of numerical oscillation. Alternatively, mass lumping techniques yielding a diagonal mass matrix were employed by many other authors to remove the possible numerical oscillation [11-13]. Some special techniques were also proposed in the framework of finite element method (known as the stabilized finite element methods) to repress the unphysical oscillations, as recently reviewed and compared by Sendur [14].","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129705821","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":"Creating Sustainable and Efficient Transport Interchanges: Some Findings of the City-HUB Project","authors":"O. Heddebaut","doi":"10.31031/ACET.2018.01.000525","DOIUrl":"https://doi.org/10.31031/ACET.2018.01.000525","url":null,"abstract":"Urban transport exchange hubs play a key role as an integral part of the transport networks by facilitating relations between public transport modes but also have a function in the city urban planning and in-service facilities [1]. Time savings, urban integration, better use of waiting times and improved operating models are some of the expected benefits of developing efficient city-hubs [2,3]. However, although interchanges are crucial for improving accessibility, there are still problems remaining such as seams or bottlenecks, which are mainly reported in the coordination between the different transport modes and the use of the information systems and management model. In order to examine a part of these problems, the three years (September 2012-February 2015) City-HUB consortium of nine European research institutes from nine countries belonging to the European conference of transport research institutes (ECTRI) project studied 27 multimodal interchanges [4].","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122959281","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":"Road Rage: Where to Go?","authors":"Anish R. Khadka, Inhi Kim","doi":"10.31031/ACET.2018.02.000526","DOIUrl":"https://doi.org/10.31031/ACET.2018.02.000526","url":null,"abstract":"Road rage is a deeply rooted social problem and has become a common phenomenon among road users. Over 85% of New South Wales (NSW) drivers interviewed reported of being a victim of various forms of road rage while this figure is even higher in Brisbane with 95% [1]. Nine out of ten US drivers believe aggressive drivers pose a threat to their personal safety while 78% of the drivers report of engaging in aggressive driving at least once in 2014 AAAFTS [2]. The fact that road rage and aggressive driving is rated above drink driving as the biggest safety concern reveals the seriousness of the issue. Road rage can be defined as any hostile act conducted by a road user towards another road user on the roadway, including parking lots. These acts involve extreme forms of aggression like physically assaulting road users (both driver/passenger), vehicles or both. Road rage has become an easy medium to express anger, frustration, and the annoyance of everyday conflicts and disagreements on situations arising both on and off the roadway due to power, ease of escape, anonymity, and protection associated with vehicles.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126816206","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":"Feasibility Study on Small Scale Food Production Using Off-Grid Photovoltaic Water Pumping System in Coastal Dune","authors":"K. Tagawa","doi":"10.31031/acet.2018.01.000523","DOIUrl":"https://doi.org/10.31031/acet.2018.01.000523","url":null,"abstract":"Approximately 795 million people in the world suffer from malnutrition and most of the population is living in developing countries and in arid region [1]. Small and family farming are main form of food production in the countries and region with high malnutrition rate, but the limited land use and the lack of access to water and energy resources hinder to enhance the supply of nutrient by sustainable food production. Facing these issues, smallscale food production system with consideration of relationship between food, energy and water supply has been attracting a lot of attention in recent years [2,3]. From this background, this study aims to develop the small-scale food production system which is combined photovoltaic (PV) water pumping system with cultivation of vegetable. Specially, groundwater at seashore in coastal dune is considered as new water resource for food production. The results of demonstration test of PV water pumping system and cultivation of vegetable are reported in this paper. Material and Method","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116095768","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":"Protection of Continental Surface Waters in Senegal: What Strategy Should be Adopted for Sustainable Development?","authors":"C. Faye","doi":"10.31031/ACET.2018.01.000521","DOIUrl":"https://doi.org/10.31031/ACET.2018.01.000521","url":null,"abstract":"Senegal has a rich and diversified hydrological potential. Most of the surface water reserves are located in the basins of the Senegal and Gambia Rivers, to which are added smaller rivers (Casamance and Kayanga) and small temporary flow basins. Unfortunately, these water resources are today threatened by anthropogenic actions of various origins and by the harmful effects of climate change. In addition, inadequate water management policies exacerbate water scarcity and are often not conducive to sustainable management of water resources. The protection of continental surface waters in Senegal faces major challenges. Thus, this article analyzes the main legal, administrative, technical and financial elements of a strategy to adopt for a sustainable development of continental surface waters in Senegal. The results of the analysis indicate increase in anthropogenic pressures on water bodies and rivers. Although the regulation prohibits the infringement of continental surface waters, their protection for humans and biodiversity benefit remains ineffective. In addition, means of combating pollution, methods for assessing the status of inland water bodies and their monitoring programs in Senegal are lacking, and require establishment of a new system action plan.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130048798","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":"Smart Built-Environments for People Living with Dementia","authors":"T. Gulrez","doi":"10.31031/ACET.2018.01.000516","DOIUrl":"https://doi.org/10.31031/ACET.2018.01.000516","url":null,"abstract":"Ageing population is a world-wide rapidly growing phenomena [1,2]. Increased longevity is often associated with susceptibility to diseases which lead to cognitive or physical decline of human body. There are an estimated 47 million people worldwide living with dementia in 2015. According to a recent estimate, by 2035 the population of people living with dementia will double. With the current trends in population demographics, it is becoming increasingly difficult for governments worldwide to fully support the health and social care systems. One of a recent challenge for civil engineering is to create Dementia friendly communities and housing.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122889558","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":"Evacuation Modelling in New Zealand the Result of An Online Survey","authors":"Ruggiero Lovrelio, Ed Claraidge, P. Jackson","doi":"10.31031/ACET.2018.01.000520","DOIUrl":"https://doi.org/10.31031/ACET.2018.01.000520","url":null,"abstract":"This change has occurred also in New Zealand. In fact, fire engineering has experienced major changes in New Zealand in the last five years with the introduction of the 2012 edition of the Building Code [1]. The C/VM2 Verification Method [2] represents a compromise between a prescriptive approach and a novel performance-based approach by providing several prescriptive inputs for fire and evacuation modelling and provide a novel ‘Framework for Fire Safety Design’. The performance approach relies on the comparison ASET and RSET, where ASET stands for Available Safe Egress Time while RSET stands for Required Safe Egress Time [3]. As such, fire engineers are asked to predict and model several fire and evacuation scenarios to ensure that the RSET is greater than the ASET.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126639944","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":"Fires on Buildings: A Needed Study","authors":"C. Corrêa","doi":"10.31031/ACET.2018.01.000515","DOIUrl":"https://doi.org/10.31031/ACET.2018.01.000515","url":null,"abstract":"Fires on buildings (comercials, services, factories or residential) are extremely frequent all around the world. It is estimated this type of fire takes around one third (1/3) of all the recorded events. Figure 1 confirms this statement in a study made in thirty-nine (39) countries around the world [1]. The damages that derive from these fires are considerable, specially the economic losses in consequence of the interruption of activities or even productive chains, promoting the “run-out of jobs” [2], over the significant amount of money that are set for the rebuilding process of damaged or even destroyed structures [2,3].","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131769493","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}