Scientific Review Engineering and Environmental Studies (SREES)最新文献

Investigation for stress–strain curves of the plastic damage model for concrete 混凝土塑性损伤模型的应力-应变曲线研究

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.4478

R. Bakhti, B. Benahmed, Abdelghani Laib

{"title":"Investigation for stress–strain curves of the plastic damage model for concrete","authors":"R. Bakhti, B. Benahmed, Abdelghani Laib","doi":"10.22630/srees.4478","DOIUrl":"https://doi.org/10.22630/srees.4478","url":null,"abstract":"The Barcelona model is one of the most widespread models used in the nonlinear finite element method for simulating the real behavior of concrete. The strong robustness of this model can be attributed to two main reasons, the first one being its ability to account for the elastic stiffness degradation induced by plastic straining and the second one the aptness of considering the stiffness recovery effects under cyclic loading. This model was examined in the paper by comparing the generated stress–strain diagrams with several analytical solutions from the literature. The comparing process in the compression and tension cases with the closed-form solutions of Desayi, Krätzig, Lubliner and Thorenfeldt proved that the Barcelona model provided identical outcomes with Lubliner’s formula, which was used as the hardening function in the finite element implementation of this model. What is more, this model provided the same curves in case of the others in the ascending branches, and for the descending branch, this study proved that the outcomes of the Barcelona model are completely different from the ones of Desayi in the compression case and slightly similar to Thorenfeldt’s curves in the tension case.","PeriodicalId":156773,"journal":{"name":"Scientific Review Engineering and Environmental Studies (SREES)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115070506","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

Effect of hybrid steel-polypropylene fiber on punching shear behavior of flat slab with an opening 钢-聚丙烯混杂纤维对开孔平板冲剪性能的影响

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.4535

Shahzinan J. Zaezue, W. Hadi

引用次数: 0

Exploring acceptance on benefit of solar farm implementation in Malaysia 探索在马来西亚实施太阳能发电场效益的接受度

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.3899

Shahrul Nizam Mohammad, Mohamed Khatif Tawaf Mohamed Yusof, Muhammad Bazli Faliq Mohd Puaad, R. Zakaria, A. Baki

{"title":"Exploring acceptance on benefit of solar farm implementation in Malaysia","authors":"Shahrul Nizam Mohammad, Mohamed Khatif Tawaf Mohamed Yusof, Muhammad Bazli Faliq Mohd Puaad, R. Zakaria, A. Baki","doi":"10.22630/srees.3899","DOIUrl":"https://doi.org/10.22630/srees.3899","url":null,"abstract":"Exploring acceptance on benefits of solar farm implementation in Malaysia. Implementation of solar farms to generate electricity is still low in Malaysia, where only 1%, or 227.5 MW of the total installed electrical capacity in Malaysia was produced from solar PV installations in 2016. Renewable energies, e.g. solar energy, have been adopted in many countries to generate electricity as a response to global environment issues. The aim of this study is to determine financial opportunities and benefits of solar farm implementation towards the society and the environment. Data were acquired through a literature review and questionnaire survey that was conducted among the respondents that are directly involved in the solar energy. Long-term financial savings constitute the most identified financial opportunities for the implementation of solar farms in generating clean electricity. Implementation of solar farms will encourage more businesses related to solar energy to be established in the country and will lead to new business opportunities. Solar farms are far better than conventional fossil fuel power plants in terms of the environmental effect and also reduce the health effects on the society during the electric generating process.","PeriodicalId":156773,"journal":{"name":"Scientific Review Engineering and Environmental Studies (SREES)","volume":"28 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129764527","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 incorporating granite powder in the mechanical properties of concrete 花岗岩粉掺入对混凝土力学性能的影响

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.4479

S. P. Muñoz Pérez, Jorge Junior ATOCHE ZAMORA

引用次数: 1

Calculation of the strength of reinforced concrete beams strengthened with composite materials 复合材料加固钢筋混凝土梁的强度计算

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.4614

O. Borysiuk, R. Trach

引用次数: 0

Experimental investigation for the local scour around V-shaped spur-dikes v形坝周围局部冲刷试验研究

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-03-27 DOI: 10.22630/srees.4506

L. A. Alasadi, T. Khlif, F. A. Hassan

{"title":"Experimental investigation for the local scour around V-shaped spur-dikes","authors":"L. A. Alasadi, T. Khlif, F. A. Hassan","doi":"10.22630/srees.4506","DOIUrl":"https://doi.org/10.22630/srees.4506","url":null,"abstract":"Spur-dikes are efficient hydraulic structures that are made for numerous purposes. They have one end on the stream bank and another extending into the current. As a result of the existing spur-dikes in the stream course, the local scour phenomena usually occur around them, leading to several predicaments which have been of great concern to the hydraulic engineers. For the present work, laboratory experiments were carried out to measure the scour depths around several spur-dikes located at different distances for the V-shaped one. The experiments were conducted using physical models installed in a non-curved flume with a bed with uniform cohesion-less sediment of a medium particle size (d50 = 0.7 mm). All the models were operated under the subcritical flow of clear-water conditions. The investigations include three spur-dikes (1, 2 and 3) and three distances between them (1, 1.5 and 2 of spur-dike length) as two countermeasures to minimize the local scour depths. The results showed that an increasing number of spur-dikes and the distances between them would decrease the scour depths within the limit of the present study. The experimental data were used to create a new formula of R2 = 0.954 that reflects a good agreement with the experimentally observed results.","PeriodicalId":156773,"journal":{"name":"Scientific Review Engineering and Environmental Studies (SREES)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115204612","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

Mechanical properties and flexural behaviour of reinforced concrete beams containing recycled concrete aggregate 含再生混凝土骨料的钢筋混凝土梁的力学性能和弯曲性能

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-01-10 DOI: 10.22630/srees.4250

Malak H. Dawood, Ali K. Al-Asadi

{"title":"Mechanical properties and flexural behaviour of reinforced concrete beams containing recycled concrete aggregate","authors":"Malak H. Dawood, Ali K. Al-Asadi","doi":"10.22630/srees.4250","DOIUrl":"https://doi.org/10.22630/srees.4250","url":null,"abstract":"Increasing waste recycling has become an essential process in the construction industry due to the environmental and economic advantages, such as minimizing waste in landfills, saving natural resources, and decreasing pollution. Crushing and sieving waste from standard compression test cubes is used to produce the recycled concrete aggregate (RCA). A set of standard concrete cylinders, cubes, and beam specimens were made by utilizing coarse aggregate replacement ratios of 0, 30, 50 and 70%. At the day 28 stage, the specimens were tested to determine compressive strength, stress–strain relationship, splitting tensile strength, and flexural strength. In addition, four reinforced concrete (RC) beams were cast and tested under a four-point load to evaluate the flexural behaviour of RC beams with partial replacement of the natural aggregate with RCA. One was a natural aggregate (NA) control beam, while the others had varying RCA ratios (30, 50 and 70%). The results show that the compressive strength of RCA concrete with the replacement by 30, 50 and 70% decreased by 9.10, 18.88 and 22.57% respectively, in comparison with the compressive strength of normal concrete (NC). The RCA concrete showed a high strain capacity, which indicated high ductility. The maximum RCA type strains ranged from 0.0056 to 0.0072. Concrete flexural strength showed a slight decrease in comparison to NC (18.83% decrease), where the tensile strength showed a 10.61% decrease in comparison to NC. As for RC beams, the load-carrying capacity decreased by 10.5% with increases in the replacement ratio.","PeriodicalId":156773,"journal":{"name":"Scientific Review Engineering and Environmental Studies (SREES)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126479407","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

Review of factors and input parameters influencing the electric vehicle range according to measurements performed on Edison EV 根据在爱迪生电动汽车上进行的测量，回顾影响电动汽车续航里程的因素和输入参数

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-01-10 DOI: 10.22630/srees.4544

I. Gajdac, Ľ. Kučera, T. Gajdošík, V. Konstantová

引用次数: 0

Long-term water quality monitoring using Sentinel-2 data, Głuszyńskie Lake case study 利用Sentinel-2数据进行长期水质监测，Głuszyńskie湖泊案例研究

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-01-10 DOI: 10.22630/srees.4482

W. Ciężkowski, M. Frąk, I. Kardel, Marcin Kościelny, J. Chormański

引用次数: 4

Self-compacting concrete strengthening efficiency investigation by using recycled steel waste as fibres 回收废钢作纤维对自密实混凝土加固效果的研究

Scientific Review Engineering and Environmental Studies (SREES) Pub Date : 2023-01-05 DOI: 10.22630/srees.3901

Ola Hussein, Aamer Abbas

{"title":"Self-compacting concrete strengthening efficiency investigation by using recycled steel waste as fibres","authors":"Ola Hussein, Aamer Abbas","doi":"10.22630/srees.3901","DOIUrl":"https://doi.org/10.22630/srees.3901","url":null,"abstract":"Steel recycling saves energy and time, and is more environmentally friendly. It can help rid the environment of huge amounts of scrap vehicles and huge structures, as well as reducing the mining operations that destroy the natural environment. In this investigation, the steel scrap effect on the mechanical properties of concrete was investigated, in addition to investigating the variation in mechanical properties with increased concrete age. Three concrete mixes were studied: one without steel waste as a control, one with 1% steel waste by volume of concrete, and one with 1.5% steel waste by volume of concrete. The results show that adding waste steel to the concrete improved the compressive strength as well as the tensile strength, where a mixture which contains 1% of steel waste had an increase in strength of up to 12% and 23% by day 28 for compressive strength, and tensile strength sequentially in comparison to the reference mix. Furthermore, the results show that there was a significant increase in splitting tensile strength, at 29% on day 28 for a mix of 1.5% steel waste as compared to the reference concrete mix. The best improvement in compressive strength over time was obtained when using 1% steel waste. The best improvement in tensile strength over time was obtained when using 1.5% of steel waste. In both cases, the amount of the improvement was better than the models without steel waste, which gives us confidence in giving recommendations for conducting more in-depth studies to achieve the maximum advantage.","PeriodicalId":156773,"journal":{"name":"Scientific Review Engineering and Environmental Studies (SREES)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126477220","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