Revista de la Construccion最新文献_第4页

Ultimate capacity prediction of RC and SFRC beams with low shear span-depth ratio using NLFEA and inverse analysis 低剪跨深比RC和SFRC梁极限承载力的NLFEA和逆分析

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.3.717

C. A. Benedetty, Ingrid R. Irreño, J. J. Martínez, L. C. Almeida, L. Trautwein, P. A. Krahl

{"title":"Ultimate capacity prediction of RC and SFRC beams with low shear span-depth ratio using NLFEA and inverse analysis","authors":"C. A. Benedetty, Ingrid R. Irreño, J. J. Martínez, L. C. Almeida, L. Trautwein, P. A. Krahl","doi":"10.7764/rdlc.21.3.717","DOIUrl":"https://doi.org/10.7764/rdlc.21.3.717","url":null,"abstract":"In this study, the capacity and ultimate behavior of Reinforced Concrete (RC) and Steel Fiber Reinforced Concrete (SFRC) beams are evaluated. Nonlinear Finite Element Analysis (NLFEA) and the inverse analysis technique were used to model its structural response using the ATENA finite element software. The smeared crack approach, the crack band model, and advanced constitutive models were used to reproduce concrete fracture. The analyzed beams were subjected to rupture in a four-point bending test setup. The relationship between the shear span and the depth of the beams was 1.5. Four scenarios were analyzed, RC beams with and without stirrups, and SFRC beams without stirrups with volumes of 0.57% and 0.76%. The results obtained in the modeling are discussed in terms of the ability of the models to numerically reproduce the relationships: load versus displacement, load versus strain, crack patterns, and failure modes. The analysis techniques allowed to reproduce the experimental response of the beams with good agreement. They show great potential to solve structural engineering problems","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71305898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of properties of mortar containing pyrogenic silica-added supplementary cementitious materials 含热原硅补强胶凝材料砂浆的性能研究

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.1.118

Gökhan Görhan, Ahmet Mücahit Bozkurt

引用次数: 0

Behaviour of sintered fly ash aggregates and steel fibers on reinforced concrete slabs subjected to punching 烧结粉煤灰骨料和钢纤维在钢筋混凝土板上受冲孔作用的性能

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.2.228

R. Babu B., T. R

{"title":"Behaviour of sintered fly ash aggregates and steel fibers on reinforced concrete slabs subjected to punching","authors":"R. Babu B., T. R","doi":"10.7764/rdlc.21.2.228","DOIUrl":"https://doi.org/10.7764/rdlc.21.2.228","url":null,"abstract":"In this study the optimum replacement percentage of sintered fly ash aggregates in M30 grade of concrete was identified based on 28 days cubical compressive strength value. The optimum replacement of Sintered Fly ash Aggregates (SFA) is 40 %. Before identifying the optimum replacement percentage, the SFAs were tested for suitability test such as crushing strength test, impact test and water absorption test. Further, the optimum 40 % SFAs in concrete is tested for punching shear on the Reinforced Concrete (RC) slabs for a dimension of 1000 mm x 1000 mm x 100 mm. In addition to know the effect of steel fibers in RC slabs subjected to punching. A hook ended steel fibers having an aspect ratio of 55, 80 and 100 is selected and varied by volume of concrete for the punching shear values on RC slabs. The RC slabs concrete contains aspect ratio of steel fibers 55 is varied for 0.25 %, 0.5 %, 0.75 % and 1 % for volume of concrete. In addition to that a constant volume of steel fiber 0.5 % is selected for the aspect ratios of 80 and 100 for the punching shear tests. The punching shear values for the RC slabs shows that partial replacement of SFAs and steel fibers in concrete enhances the punching shear strength. These experimental tested results are compared with finite element programming (ABAQUS) and international codes such as IS 456 and ACI 2011. The experimental punching shear results were higher when compared to international codes.","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71304844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of rutting, fatigue and cracking resistance parame-ters of CR modified warm asphalt binders compare with SBS modified binders CR改性温沥青粘结剂与SBS改性沥青粘结剂车辙、疲劳和抗裂性能的比较研究

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.2.309

M. Akpolat

{"title":"Investigation of rutting, fatigue and cracking resistance parame-ters of CR modified warm asphalt binders compare with SBS modified binders","authors":"M. Akpolat","doi":"10.7764/rdlc.21.2.309","DOIUrl":"https://doi.org/10.7764/rdlc.21.2.309","url":null,"abstract":"This study compares the rutting and cracking resistance and fatigue parameters of crumb rubber (CR) modified warm asphalt binders, which were determined by viscoelastic continuum damage (VECD) theory. The effect of the combination of CR modification and Sasobit, a warm mix additive, was investigated. Performance of CR + Sasobit compound was compared with styrene-butadiene-styrene (SBS) modification. Newly developed rheological tests such as multi stress creep recovery (MSCR), lineer amplitude sweep (LAS) and conventional tests were applied to modified binders. It was determined that the CR + Sasobit modified binders improved the rutting parameter better in comparison to SBS-added binders. Although the CR additive improved the rheological properties of the binder at low and medium temperatures, this effect was reduced when used with Sasobit additive. Sasobit additive increased the stiffness and decreased the fatigue parameter at low temperatures. Besides, the results of the LAS test revealed that at high strain values (i.e.> 6%), the fatigue life of CR and Sasobit modified binders was lower than the fatigue life of the pure binder. In other words, CR and Sasobit modified binders could not preserve material integrity.","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71305352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Relative density influence on the liquefaction potential of sand with fines 相对密度对细粒砂液化势的影响

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.3.692

Mohamed Bensoula, Mohammed Bousmaha, H. Missoum

{"title":"Relative density influence on the liquefaction potential of sand with fines","authors":"Mohamed Bensoula, Mohammed Bousmaha, H. Missoum","doi":"10.7764/rdlc.21.3.692","DOIUrl":"https://doi.org/10.7764/rdlc.21.3.692","url":null,"abstract":"Liquefaction is a loss in soil’s resistance which can lead to disastrous and expensive consequences in terms of human lives and material damages, hence the interest of this laboratory study. The article explores the relative density influence in addition to the main parameter of the fines content on the liquefaction potential of soils. The study is based on a very large number of undrained monotonic triaxial tests undertaken on samples of reconstituted saturated sand and silt mixtures with 6 levels of initial relative density ranging from 15 to 90%. The materials used are levied from different level of deepness in the coastal region of Kharouba in the wilaya of Mostaganem. In this experiment, the sand-silt mixtures were separated to form the study samples. The aim of this work is, on one hand, to confirm and update the results of previous works (Bensoula et al., 2018) and on the other hand the study of the influence of relative density on the liquefaction potential of soils and the introduction of the concept of relative density threshold. The results of the tests confirm that the studied soil is most likely to be liquefied at a fines content between 0 and 30% depending on the equivalent intergranular voids and the equivalent relative density. These parameters are primordial for the characterization of soils sensitivity to liquefaction. In this study, the results showed that the resistance to liquefaction increases in a linear way with the relative density up to a threshold relative density value according to the fines content, which means that increasing the relative density improves the liquefaction resistance but only up to a threshold value of relative density given according to fines content","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71305677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Compressive resistance level effect on impact performance of fi-ber reinforced concrete 抗压水平对纤维混凝土冲击性能的影响

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.1.135

J. C. Vivas

引用次数: 2

Construction and demolition waste as raw material in pavements layers 建筑和拆迁垃圾作为路面层的原料

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.1.184

F. Silva, M.T.A. Silva, J. Delgado, A. Azevedo, Gabriel F. Pereira

{"title":"Construction and demolition waste as raw material in pavements layers","authors":"F. Silva, M.T.A. Silva, J. Delgado, A. Azevedo, Gabriel F. Pereira","doi":"10.7764/rdlc.21.1.184","DOIUrl":"https://doi.org/10.7764/rdlc.21.1.184","url":null,"abstract":"The proper management of demolition construction waste from the construction industry is an issue that has gained relevance over the last years in several research centers around the world and, in this context, researches on the potential of using construction and demolition waste to execute pavement layers have been stood out. The paper presented results of a research performed to evaluate the characteristics of the material produced by a waste treatment/beneficiation industrial plant. Tests to verify the suitability of the material as pavement subbase material were performed according Brazilian code - grain-size distribution composition, maximum characteristic dimension, shape particle index (SPI), contaminant percentage and sieving process. The results obtained indicated that the recycled aggregates investigated performed well in all the requirements of the reference standards used and only one correction, related to grain size distribution, was performed using a sieving process. It is important to highlight that the tests and analyses must be performed constantly when forming each aggregate batch, since the recycled aggregates are usually quite heterogeneous, with characteristics that may vary depending on the type of work, construction materials used or period of the year.","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71304567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Numerical modelling of concrete tunnels exposed to rock fall 岩石崩落下混凝土隧道的数值模拟

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.2.215

B. Baǧrıaçık, G. Altay, S. Önal, C. Kayadelen

引用次数: 0

Effect of aerogel/silica fume under curing methods on properties of cement-based mortars 气凝胶/硅灰固化方式对水泥基砂浆性能的影响

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.2.368

Ozlem Uatundag, Ozlem Celik Sola

引用次数: 1

Effect of compression casting technique on the water absorption properties of concrete made using 100% recycled aggregates 压缩浇筑工艺对100%再生骨料混凝土吸水性能的影响

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2022-01-01 DOI: 10.7764/rdlc.21.2.387

R. Hameed, Zaib un-Nisa, M. Rizwan Riaz, S. A. Ali Gillani

{"title":"Effect of compression casting technique on the water absorption properties of concrete made using 100% recycled aggregates","authors":"R. Hameed, Zaib un-Nisa, M. Rizwan Riaz, S. A. Ali Gillani","doi":"10.7764/rdlc.21.2.387","DOIUrl":"https://doi.org/10.7764/rdlc.21.2.387","url":null,"abstract":"Effect of compression casting technique on the water absorption characteristics of low grade 100% Recycled Aggregate Concrete (RAC) of target strength range 11 to 15 MPa to be used in the manufacturing of masonry units is investigated. Water absorption characteristics were determined by performing sorptivity test. Recycled aggregates were produced by crushing laboratory-tested concrete samples of strength ranging from 21 MPa to 28 MPa. Two different ratios of recycled coarse aggregate and recycled fine aggregates were investigated using two different cement contents. For comparison, natural aggregate concrete mixes were also tested. The study parameter included effect of aggregates type, casting pressure, casting technique and cement content on the water absorption properties of RAC. Further, depth of penetration of salt was observed using silver nitrate solution after 3-month immersion in 10% NaCl solution. The results of sorptivity test showed positive impact of compression casting technique on water absorption properties of low grade 100% RAC. Further, results showed that RAC mixes exhibited inferior water absorption properties compared to natural aggregates concrete mixes. Various equations were proposed to predict water absorption of 100% RAC under different conditions of casting pressure and cement content based on initial and secondary rate of water absorption.","PeriodicalId":54473,"journal":{"name":"Revista de la Construccion","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71305237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3