Structure and Environment最新文献_第2页

PAPER – SAWDUST COMPOSITES: FABRICATION AND COMPARISON IN TERMS OF HEAT TRANSFER AND STRENGTH PROPERTIES 纸-木屑复合材料:在传热和强度性能方面的制造和比较

Structure and Environment Pub Date : 2023-03-31 DOI: 10.30540/sae-2023-005

Ubong Williams Robert

{"title":"PAPER – SAWDUST COMPOSITES: FABRICATION AND COMPARISON IN TERMS OF HEAT TRANSFER AND STRENGTH PROPERTIES","authors":"Ubong Williams Robert","doi":"10.30540/sae-2023-005","DOIUrl":"https://doi.org/10.30540/sae-2023-005","url":null,"abstract":"This study was designed to examine the feasibility of recycling cassava effluent, sawdust, and unused paper products to enhance their utilization for beneficial purpose. Waste newspaper paste (WNP), Waste writing – paper paste (WWP), and Waste carton paper paste (WCP) were prepared and then used separately to similarly fabricate composite panels with Sawdust particle (SDP) proportioned at 0%, 25%, 50%, 75%, and 100% by weight. The binder used was cassava starch slurry prepared from the effluent. Bulk density, water absorption, thermal conductivity, specific heat capacity, thermal diffusivity, nailability, and flexural strength were determined for the developed samples. From the results obtained, the samples were found to be light-weight and their thermal insulation performance improved with increasing proportions of the SDP. Though samples containing the WCP exhibited the best satisfactory performance, it was found that all the studied samples could perform more effectively and efficiently as ceilings compared to some of those reported in the literature. From scientific-economic viewpoint, valorizing the above-mentioned wastes as described in this paper could help to protect the environment and also yield value-added insulation ceilings for enhancement of sustainable building construction especially in tropical areas.","PeriodicalId":109008,"journal":{"name":"Structure and Environment","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127133969","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

Al Heritage of Ukraine and Ways of their Recreation Lost Monuments of the Cultur 乌克兰的遗产和他们的娱乐方式失去的文化古迹

Structure and Environment Pub Date : 2023-03-01 DOI: 10.30540/sae-2023-003

V. Abyzov

引用次数: 0

“An Accessible City” – A Look from the Perspective of the ‘60+’ Generation “无障碍城市”——从“60+”一代的视角看

Structure and Environment Pub Date : 2023-03-01 DOI: 10.30540/sae-2023-004

J. Gil-Mastalerczyk

{"title":"“An Accessible City” – A Look from the Perspective of the ‘60+’ Generation","authors":"J. Gil-Mastalerczyk","doi":"10.30540/sae-2023-004","DOIUrl":"https://doi.org/10.30540/sae-2023-004","url":null,"abstract":"Abstract This paper presents the results of workshop experiments aimed at realising the concept of the accessible city and identifies key considerations for enabling seniors to function better in the city’s public space, based on the real needs of an ageing population. The study used field research (in situ), functional-spatial analysis (case studies) and data synthesis. The latest available data from the Statistics Poland on the demographic situation of senior citizens, government programmes and current legislation – depicting the current and projected situation in Poland were analysed. Faced with alarming data indicating that Poland’s population will continue to grow older until 2050, with the number of people aged 60+ reaching 40.4% of our country’s total population, field research was carried out into the accessibility of selected urban spaces and a set of architectural and urban planning recommendations were presented to address the most important needs and better functioning of the 60+ generation. As the Świętokrzyskie Voivodeship is currently home to the largest total population of senior citizens, the region's capital, Kielce, was chosen as the location for the analysis.","PeriodicalId":109008,"journal":{"name":"Structure and Environment","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133514519","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

Traffic Zones Accessible for all Users. Design Solutions and Material Recommendations for Outdoor Traffic Zone Pavements 所有用户可访问的流量区域。室外交通区域路面的设计方案和材料建议

Structure and Environment Pub Date : 2023-03-01 DOI: 10.30540/sae-2023-002

J. Gil-Mastalerczyk, Sylwia Mochocka, Małgorzata Wijas

{"title":"Traffic Zones Accessible for all Users. Design Solutions and Material Recommendations for Outdoor Traffic Zone Pavements","authors":"J. Gil-Mastalerczyk, Sylwia Mochocka, Małgorzata Wijas","doi":"10.30540/sae-2023-002","DOIUrl":"https://doi.org/10.30540/sae-2023-002","url":null,"abstract":"Abstract This article discusses the aspects of designing the pavements of pedestrian zones, shared spaces, city squares and other public spaces in terms of the selection of their parameters, colour and texture, which can significantly improve their comfort of use and, in a wider context, improve the accessibility of public spaces and buildings. When we think about a friendly city, we aim to create urban spaces free from any barriers that could exclude some people from the social life. Urban space can be defined as friendly from the perspective of an end user who moves around on foot, or uses crutches or a wheelchair, but also in the context of fully fit people, who are nevertheless limited in their movement because they are pushing a pram, carrying a baby or heavy luggage, etc. It has been proven that a well-designed pavement can significantly improve access to an area, reducing therefore the stigmatisation of elderly, disabled, blind, visually impaired people, etc. Solutions described in this article go well beyond the applicable legal acts in the context of the building law and therefore significantly improve the accessibility of public spaces and buildings and help to create spaces that are friendly to all users – i.e. spaces that are safe and free of any risks connected with disorientation, psychological security or the possibility of collision due to the existing barriers.","PeriodicalId":109008,"journal":{"name":"Structure and Environment","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126886221","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

Experimental Study on Thermal Comfort at University Buildings in Slovakia 斯洛伐克大学建筑热舒适试验研究

Structure and Environment Pub Date : 2023-03-01 DOI: 10.30540/sae-2023-001

Ł. Orman, A. Kapjor

引用次数: 0

Behavior of Mat Foundation for a Ten-Story Building: Fixed Base vs Three-Dimensional Soil Model 某十层建筑垫层基础的性能:固定基础与三维土体模型

Structure and Environment Pub Date : 2022-12-01 DOI: 10.30540/sae-2022-017

Farhaj Hasan, N. Alam, A. Amin, M. Hasan

{"title":"Behavior of Mat Foundation for a Ten-Story Building: Fixed Base vs Three-Dimensional Soil Model","authors":"Farhaj Hasan, N. Alam, A. Amin, M. Hasan","doi":"10.30540/sae-2022-017","DOIUrl":"https://doi.org/10.30540/sae-2022-017","url":null,"abstract":"Abstract Soil is an anisotropic, heterogeneous, and inelastic complex material. It is difficult to represent the exact behavior of soil by numerical modelling in practice. Conventionally, soil is simplified to an idealized model where it is considered isotropic, homogeneous, and behaves elastically under loads. The idealization, in this case, is done using the proper elastic modulus, Poisson’s ratio, and unit weight of soil depending upon the soil type. Although the exact soil behavior is simplified, using Finite Element Analysis (FEA) a more effective result can be obtained. A superstructure was modelled using ETABS using a fixed-base system and the base reaction forces were obtained. A mat and a soil element on which the mat was laid were modelled as a flexible-base system in Midas GTS NX. The base reactions obtained from ETABS were applied to the mat in the soil model to determine the settlements and, consequently, the spring stiffness. The superstructure was then modelled again, incorporating springs under the respective columns. Convergence in settlement, and base reactions were reached by iteration, and the final results from the flexible-base system were then compared with the fixed-base system. The center column settled the most, about 60 mm, and there was a decrease in settlement by 15% between the first model and the final iterated model. The base reaction for center columns decreased by 24% in the flexible base system compared to the fixed base system. However, an increase in base reaction was observed for both side and edge columns. There was an extremely erratic change in grade beams under a flexible base system, which shows that the superstructure elements are also affected by the change in the base system. It is recommended to use this approach, for the analysis of structures considering flexible base systems instead of fixed bases because it enhances the accuracy of analysis with feasible time consumption and less complex effort.","PeriodicalId":109008,"journal":{"name":"Structure and Environment","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126332767","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

Inorganic Salt Hydrates as Phase Change Materials (PCM) for Thermal Energy Storage in Solar Installations 无机盐水合物作为相变材料(PCM)用于太阳能装置中的热能储存

Structure and Environment Pub Date : 2022-12-01 DOI: 10.30540/sae-2022-018

Marta Styś-Maniara, Edyta Nartowska, Monika Metryka-Telka, R. Porowski

引用次数: 0

Influence of Road Traffic on Indoor Air Quality 道路交通对室内空气质量的影响

Structure and Environment Pub Date : 2022-12-01 DOI: 10.30540/sae-2022-016

E. Zender-Świercz, Michał Polański Kielce

引用次数: 0

Assessment of the Possibility of Using Chalcedonite Powder as a Component of Mortars 玉髓石粉作为砂浆成分的可能性评价

Structure and Environment Pub Date : 2022-12-01 DOI: 10.30540/sae-2022-014

E. Spychał, A. Kotwa