Revista Ingeniería de Construcción最新文献_第4页

Análisis y clasificación iberoamericana de la accidentalidad laboral en la industria de la construcción civil 土木建筑行业工作事故的伊比利亚-美洲分析和分类

Revista Ingeniería de Construcción Pub Date : 2020-08-01 DOI: 10.4067/s0718-50732020000200135

J. Hernández, J. L. M. Santos

{"title":"Análisis y clasificación iberoamericana de la accidentalidad laboral en la industria de la construcción civil","authors":"J. Hernández, J. L. M. Santos","doi":"10.4067/s0718-50732020000200135","DOIUrl":"https://doi.org/10.4067/s0718-50732020000200135","url":null,"abstract":"Anualmente acontecen millones de accidentes y miles de fallecimientos derivados de la actividad laboral, siendo el 30% de estos siniestros aportados por la construccion civil. Conociendo que este sector es uno de los motores de las economias iberoamericanas, se torna relevante identificar el comportamiento de la siniestralidad laboral de dicha industria en la region. Por tal motivo, este articulo presenta como objetivo principal el desarrollo de un analisis sobre la accidentalidad laboral iberoamericana en el sector construccion, con base en resultados obtenidos de fuentes estadisticas oficiales para el periodo 2013-2017. El estudio en mencion se llevo a cabo mediante investigaciones cuantitativas, observaciones estadisticas, determinacion de correlaciones y uso de los metodos multicriterio AHP y TOPSIS. De esta investigacion se obtuvieron como resultados principales: la caracterizacion de la accidentalidad, un ranking Iberoamericano de siniestralidad y el analisis de aspectos basicos exigidos a empleadores de cada pais involucrado. Asimismo, se consiguio identificar que en el periodo de analisis la region tuvo una mejoria en la lucha en contra de esta problematica, ya que se registro una reduccion sucesiva en las cifras de accidentalidad a traves del tiempo.","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132183672","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

Análisis de elementos finitos de Vigas de Hormigón Armado CFRP CFRP钢筋混凝土梁的有限元分析

Revista Ingeniería de Construcción Pub Date : 2020-08-01 DOI: 10.4067/s0718-50732020000200148

A. Sakbana, M. Mashreib

{"title":"Análisis de elementos finitos de Vigas de Hormigón Armado CFRP","authors":"A. Sakbana, M. Mashreib","doi":"10.4067/s0718-50732020000200148","DOIUrl":"https://doi.org/10.4067/s0718-50732020000200148","url":null,"abstract":"This study concerns with flexural behavior of RC beams strengthened by carbon fiber reinforced polymer (CFRP) using finite element method (FEM). ABAQUS program has been used in this research. The load-deflection relationship, crack pattern, strain in the concrete at mid-span section of the beam and failure modes of all tested beams are studied. After validation of FEM model, parametric studies are presented to assess the effect of the compressive strength of concrete, thickness, and length of CFRP, and the presence of CFRP on stress in steel bars. From the current results, it can be obtained that the flexural capacity of RC beams strengthened with CFRP increased by 6.6% for beam strengthed by EBR and to 108.8% for beam strengthed by near surface mounted (NSM) compared to the reference beams. According to parametric studies, it is found that by increasing the compressive strength of concrete from 30 MPa to 70 MPa, the beam capacity increase by 25.6%, while increasing the length of CFRP from 600 mm to 900 mm leads to increase the beam capacity by 12.7%. Increasing thickness of CFRP sheet from 0.11 mm to 0.5 mm leads to an increase in the stiffness and the flexural capacity of the beam by 47.9%. Also, the results of this study approved that the strengthening of RC beams by CFRP laminates using the NSM technique is more efficient than externally bonded reinforcement (EBR) techniques and this is agreed with the experimental results. Finally, it can be concluded that the finite element model provides good accuracy compared to the experimental results and ACI-440 results .","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121152850","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

Rendimiento de compuestos de yeso que incorporan partículas de neumáticos de goma 含橡胶轮胎颗粒的石膏复合材料的性能

Revista Ingeniería de Construcción Pub Date : 2020-08-01 DOI: 10.4067/s0718-50732020000200216

Nayra Alberici Pinto, Cesar Fabiano Fioriti, Jorge Luís Akasaki, T. Acunha, F. Okimoto

{"title":"Rendimiento de compuestos de yeso que incorporan partículas de neumáticos de goma","authors":"Nayra Alberici Pinto, Cesar Fabiano Fioriti, Jorge Luís Akasaki, T. Acunha, F. Okimoto","doi":"10.4067/s0718-50732020000200216","DOIUrl":"https://doi.org/10.4067/s0718-50732020000200216","url":null,"abstract":"Gypsum is the oldest synthetic construction material that is known, however it is a material about which there is little knowledge at the level of research, and in this work its study took place by making composites with the incorporation of rubber tires, aiming to obtain an alternative construction material. Thus, the objective was to investigate gypsum-based composites, with a mass incorporation of 5, 10, and 15% of two grades of vulcanized rubber residue from tire retreading processes. The granulometries are referred to as thin (sieve pass-through #0.60 mm) and thick (sieve pass-through #1.19 mm). The composites were investigated in terms of consistency (mini-slump), mass density, water absorption, surface hardness, flexural strength, compressive strength, scanning electron microscopy (SEM), and thermal behavior. The results revealed that rubber incorporation can be attractive in gypsum composites: in which the consistency decreased with the increase of the rubber content and the thick rubber granulometry favored the workability of the composites; the mass density was reduced, mainly with thin granulometry, as the rubber content in the composites increased; the water absorption showed that the high levels of rubber favor the penetration of water in the composites, regardless of the granulometry; the surface hardness showed reduced impact energy provided by the composite with 10% thin rubber; in both flexural strength and compression, the composite with 5% thin rubber showed a similar result to the control composite, while composites with 15% rubber suffered a gradual drop of up to 60 and 40%, respectively; with SEM it was observed that the thin rubber composites had smaller pores, in addition to more effective adhesion between the rubber particles; finally the rubber helps to reduce the thermal amplitudes during the day, mainly with the increase of the particle size and the rubber content .","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131466443","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

Determinación de la temperatura datum para la aplicación de la madurez en climas fríos 在寒冷气候下成熟度应用的基准温度测定

Revista Ingeniería de Construcción Pub Date : 2020-04-01 DOI: 10.4067/s0718-50732020000100084

L. Ebensperger, J. Oyarzun, R. Torres

引用次数: 0

Optimización metaheurística de conjuntos estructurales de hormigón armado 钢筋混凝土结构组件的元启发式优化

Revista Ingeniería de Construcción Pub Date : 2019-08-30 DOI: 10.4067/s0718-50732019000200181

I. Negrin, A. Negrín, E. Chagoyén

{"title":"Optimización metaheurística de conjuntos estructurales de hormigón armado","authors":"I. Negrin, A. Negrín, E. Chagoyén","doi":"10.4067/s0718-50732019000200181","DOIUrl":"https://doi.org/10.4067/s0718-50732019000200181","url":null,"abstract":"En este articulo se presenta la optimizacion estructural economica del proyecto Casa Sindico utilizando un algoritmo programado mediante las funciones CSi API SAP2000v19-MATLAB R2015a, aplicando tecnicas metaheuristicas: Algoritmos Geneticos (GA) y Optimizacion por Enjambre de Particulas (PSO), ademas de una hibridacion entre estas. Los resultados muestran que PSO presenta un mejor comportamiento que GA para este tipo de optimizacion, aunque ambos, trabajando con sus metodologias simples, no resultan del todo eficiente, lo cual se comprueba al crear y aplicar una hibridacion entre los dos, utilizando GA para crear un enjambre inicial para que PSO realice el proceso de optimizacion, obteniendose resultados hasta un 10 % mejores. En cuanto a los resultados estructurales, se obtiene un costo directo de construccion un 13 % mas economico al aplicar la metodologia propuesta, quedando, para las vigas, peraltos de relacion L/h entre 15 y 17.5, para las columnas, el uso de secciones con rectangularidades de hasta 1.35, en la direccion que ocurre mas flexion, algo parecido a lo que ocurre para los cimientos, donde la rectangularidad de estos sigue el criterio anterior, obteniendose valores de hasta 1.4","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130405042","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

Análisis de precios hedónicos de viviendas 享乐主义房屋价格分析

Revista Ingeniería de Construcción Pub Date : 2019-08-30 DOI: 10.4067/s0718-50732019000200215

S. Poeta, T. Gerhardt, M. González

引用次数: 3

Uso De Datos Pasivos Obtenidos Mediante Dispositivos Inerciales Para Inferir La Condición Del Pavimento En Ciclovías 利用惯性装置获得的被动数据推断自行车道的路面状况

Revista Ingeniería de Construcción Pub Date : 2019-04-12 DOI: 10.4067/S0718-50732019000100033

M. Valle, J. C. Herrera

{"title":"Uso De Datos Pasivos Obtenidos Mediante Dispositivos Inerciales Para Inferir La Condición Del Pavimento En Ciclovías","authors":"M. Valle, J. C. Herrera","doi":"10.4067/S0718-50732019000100033","DOIUrl":"https://doi.org/10.4067/S0718-50732019000100033","url":null,"abstract":"Uno de los principales factores que consideran los ciclistas al escoger su ruta es la condicion superficial de las ciclovias, ya que, al estar relacionado con las vibraciones experimentadas, afecta la comodidad del viaje. Las alternativas existentes para determinar esta condicion no responden a la realidad del ciclista o son de compleja aplicacion. Se propone una metodologia basada en una regresion logistica, que sea objetiva y especifica para detectar irregularidades en el pavimento de ciclovias y asi inferir la condicion del mismo en el tramo analizado. Como prueba de concepto de la metodologia propuesta, se diseno un experimento en terreno que emula dos deterioros especificos: levantamientos del pavimento y baches. La recoleccion de estos se realizo mediante dispositivos inerciales adosados a una bicicleta de prueba. Al aplicar la metodologia propuesta se identificaron las variables inerciales necesarias para identificar las irregularidades consideradas. Entre ellas destacaron las rotaciones en los tres ejes y la aceleracion vertical. Con estas variables, se generaron cuatro modelos capaces de identificar correctamente los problemas del pavimento. A futuro, con los resultados obtenidos se puede construir un indicador capaz de inferir el estado de la superficie a partir de las vibraciones experimentadas por los ciclistas y asi establecer un nivel de servicio asociado al pavimento de una ciclovia mediante estos indicadores.","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115194747","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

Propiedades físicas y mecánicas del hormigón usando polvo residual de desechos orgánicos como reemplazo parcial del cemento 利用有机废物残余粉尘部分替代水泥的混凝土物理力学性能

Revista Ingeniería de Construcción Pub Date : 2018-12-01 DOI: 10.4067/s0718-50732018000300229

I. S. Izquierdo, O. S. Izquierdo, M. Ramalho

{"title":"Propiedades físicas y mecánicas del hormigón usando polvo residual de desechos orgánicos como reemplazo parcial del cemento","authors":"I. S. Izquierdo, O. S. Izquierdo, M. Ramalho","doi":"10.4067/s0718-50732018000300229","DOIUrl":"https://doi.org/10.4067/s0718-50732018000300229","url":null,"abstract":"The continued growth in demand for cement has raised concerns in the industry about environmental and sustainability issues. In addition, the worldwide generation of large quantities of solid waste threatens human health and on environmental quality. This paper proposes to assess the feasibility of using a residual powder derived from organic waste of vegetable or animal origin for replacing part of Portland cement during concrete production. Specifically, the powder is derived from a living being such as the remains of food (meat, vegetables, fruits and eggshells), paper, wood, bones and seeds. Its scientific contribution is a conscious change due to development of an alternative material to contribute with more sustainable processes in the construction industry. Three types of mixtures for cement content were studied: aggregate/cement (A/C) ratios of 15, 10 and 6. Concrete samples were then made by replacing the cement with organic waste powder in percentages of 5%, 10%, 15%, and 20%. These mixtures were evaluated for their physical and mechanical properties. The results showed that the reference concrete had higher compressive strength than the concrete with low cement content (A/C ratio of 15:1). However, samples made with 5% of powder and an A/C ratio of 10:1 presented values at least 2.1% greater than compressive strength of the reference concrete. Mixtures rich in cement (A/C ratio of 6:1) and the powder replacements of up to 10% showed in the best mechanical behavior in 13% in relation to the reference concrete. Therefore, waste powder can be used as filling material to replace part of the cement, resulting in denser and more resistant concrete, as well as less specific absorption and voids.","PeriodicalId":369360,"journal":{"name":"Revista Ingeniería de Construcción","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121286919","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: 7

El trabajo colaborativo, aplicado al diseño y la construcción, para promover la construcción de edificios verdes en Perú 合作工作，应用于设计和施工，以促进秘鲁绿色建筑的建设

Revista Ingeniería de Construcción Pub Date : 2018-08-01 DOI: 10.4067/S0718-50732018000200183

L. Lung, M. Shaurette

引用次数: 2

Validación del polígono de vacíos en el diseño de mezclas bituminosas con alquitrán de hulla como ligante 以煤焦油为粘结剂的沥青混合料设计中空隙多边形的验证

Revista Ingeniería de Construcción Pub Date : 2018-08-01 DOI: 10.4067/S0718-50732018000200137

R. Ochoa, G. Grimaldo

引用次数: 0