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Vulnerabilidad sísmica del sistema estructural prefabricado gran panel Soviético en edificios deteriorados y transformados 苏联大面板预制结构体系在受损和改造建筑中的抗震脆弱性
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200060
Yamila Socarrás, E. R. Álvarez
{"title":"Vulnerabilidad sísmica del sistema estructural prefabricado gran panel Soviético en edificios deteriorados y transformados","authors":"Yamila Socarrás, E. R. Álvarez","doi":"10.4067/s0718-28132021000200060","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200060","url":null,"abstract":"Building U-142-143 is chosen for this analysis, mainly because it has critical operating conditions. It is concluded that, although the prefabricated system does not comply with all the current requirements of earthquake resistant design and present significant irregularities in plan and elevation, the building analyzed according to the formulations in the codes used, can retain rigidity in the face of seismic action. A comparison between the building according to the original project and the current variant corroborates that the greatest changes are observed in the fundamental periods. Consequently there are variations in drift, displacement and stiffness.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"51 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131922635","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
Uso de escoria de cobre de un vertedero abandonado en mezclas asfálticas 在沥青混合料中使用废弃垃圾填埋场的铜渣
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200091
Amin Nazer, M. Castillo, A. López, L. Ortíz, O. Pavez
{"title":"Uso de escoria de cobre de un vertedero abandonado en mezclas asfálticas","authors":"Amin Nazer, M. Castillo, A. López, L. Ortíz, O. Pavez","doi":"10.4067/s0718-28132021000200091","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200091","url":null,"abstract":"century in the design of asphalt pavements. In this study, the behaviour of hot asphalt mixtures containing copper slag from abandoned landfill in northern Chile, as a partial substitute for coarse aggregate was evaluated. For the design and control of bituminous pavement mixtures, the Marshall method was used. The parameters evaluated were density, % air voids in the mixture, % voids in the mineral aggregate, creep and stability. In addition, asphalt mixtures containing 4.5 to 6.0% were evaluated with increments of 0.5% asphalt for four types of mixtures with partial substitution of conventional aggregates by copper slag (0, 30, 50 and 70%, by weight). In conclusion, it can be pointed out that the mixture with 5% asphalt and 30% copper slag in replacement of the aggregate is the most suitable mixture and could be used in the design of asphalt mixtures for pavements. The use of copper slag from abandoned landfills in the manufacture of asphalt pavements, would contribute to improving environmental conditions, also decreasing the demand for aggregates in desert areas such as the Atacama Region in Chile.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"69 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114023752","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
Propuesta de implementación de la metodología BIM 5D para obras de cimentaciones industriales en la Planta de Oxígeno de Arauco 在Arauco氧气厂工业基础工程中实施BIM 5D方法的建议
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200074
Guillermo Bustamante, J. Ochoa, F. González
{"title":"Propuesta de implementación de la metodología BIM 5D para obras de cimentaciones industriales en la Planta de Oxígeno de Arauco","authors":"Guillermo Bustamante, J. Ochoa, F. González","doi":"10.4067/s0718-28132021000200074","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200074","url":null,"abstract":"Debido al crecimiento de la industria de arquitectura, ingeniería y construcción (AEC), es primordial la actualización de las metodologías de trabajo sobre todo en la etapa de diseño y construcción, ya que aquí es en donde se concentra el costo del proyecto. El objetivo principal es la gestión de información para la prevención de errores y correcta ejecución del proyecto. El presente documento propone una estrategia para la implementación de la metodología BIM en 5D, incluyendo un modelo 3D, tiempo y costo, en una empresa de construcción industrial, específicamente en las obras civiles. Dicha estrategia fue diseñada en base al proyecto Planta de Oxígeno, de modo de establecer los pasos de la metodología. Para luego aplicar la metodología BIM en el proyecto, evidenciando los beneficios en costos de las actividades y estimando el costo de implementación BIM.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117262390","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
Flujo en un canal interbahías para la renovación de las aguas en Bahía San Vicente (Chile) 巴伊亚圣维森特(智利)用于水更新的跨湾运河中的水流
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200006
María Pedreros-Guarda, Dante S. Figueroa
{"title":"Flujo en un canal interbahías para la renovación de las aguas en Bahía San Vicente (Chile)","authors":"María Pedreros-Guarda, Dante S. Figueroa","doi":"10.4067/s0718-28132021000200006","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200006","url":null,"abstract":"calculated, without and with a gate between them. It is shown that in the second case the combination of the tidal difference and the winds achieved in about a month the renovation of the most critical part of San Vicente Bay.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124233423","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
Comparación de dos funcionales de optimización para el control de estructuras monosimétricas sometidas a sismos de ancho de banda amplio por medio de dos amortiguadores de columna de líquido sintonizados 比较了两种调节液柱阻尼器控制单对称结构在宽带地震中的两种优化功能
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200050
G. Espinoza, E. Casanova, Nicole Moya, Gerardo Coloma, Álvaro Suazo
{"title":"Comparación de dos funcionales de optimización para el control de estructuras monosimétricas sometidas a sismos de ancho de banda amplio por medio de dos amortiguadores de columna de líquido sintonizados","authors":"G. Espinoza, E. Casanova, Nicole Moya, Gerardo Coloma, Álvaro Suazo","doi":"10.4067/s0718-28132021000200050","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200050","url":null,"abstract":"low mass ratio. Furthermore, it is found that the optimal position of the TLCD for eccentricities greater than 0.12 follows the same behavior rule of the optimal position of the tuned mass dampers.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121131752","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
Is Rhodamine a good tracer to predict coal transport in water? 罗丹明是预测煤在水中运移的良好示踪剂吗?
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200016
P. Winckler, Francisco Molteni, M. Reyes, A. Gubler, J. Sandoval, R. Aleixo
{"title":"Is Rhodamine a good tracer to predict coal transport in water?","authors":"P. Winckler, Francisco Molteni, M. Reyes, A. Gubler, J. Sandoval, R. Aleixo","doi":"10.4067/s0718-28132021000200016","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200016","url":null,"abstract":"A simple and low-cost experimental procedure to compare the mixing and transport of two substances in water is presented in this paper, aiming to investigate if rhodamine can predict the fate of coal transport in water. The procedure is based on acoustic Doppler techniques to characterize the flow and imaging techniques to measure the transport of substances discharged from an instantaneous point source near the free surface. To validate this procedure, several tests are carried out for rhodamine and two subsamples of coal (defined by a fine and coarse granulometry) in a flume under currents. The results show that the mixing of rhodamine resembles the finest fraction of coal that is transported as a suspended material, but fails to characterize the larger coal grains that experience sedimentation. The procedure here proposed can be expanded to characterize the mixing of substances in a body of water under other conditions, such as waves or wind driven currents.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116158500","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
Seismic soil classification using a new standard proposal and comparison with the current standard for sites located in Reñaca and Concón 采用新标准对Reñaca和Concón地区的地震土壤进行分类，并与现行标准进行比较
Obras y proyectos Pub Date : 2021-12-01 DOI: 10.4067/s0718-28132021000200030
D. Raddatz, G. Aguirre, O. Taiba
{"title":"Seismic soil classification using a new standard proposal and comparison with the current standard for sites located in Reñaca and Concón","authors":"D. Raddatz, G. Aguirre, O. Taiba","doi":"10.4067/s0718-28132021000200030","DOIUrl":"https://doi.org/10.4067/s0718-28132021000200030","url":null,"abstract":"Dennis Raddatz, Gonzalo Aguirre and Oscar Taiba Ferrara Proyectos Especiales, Av. Ossa 235, oficina 1150, La Reina, RM de Santiago, Chile, dennis.raddatz@ferrara.cl, gonzalo.aguirre@ferrara.cl, oscartaiba@ferrara.cl Clasificación sísmica del suelo con una nueva propuesta de norma y comparación con la norma actual para sitios localizados en Reñaca y Concón Fecha de entrega: 20 de septiembre 2021 Fecha de aceptación: 11 de diciembre 2021","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127812601","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
Historia y funcionamiento de los sistemas de ventilación en túneles de carretera 道路隧道通风系统的历史和操作
Obras y proyectos Pub Date : 2021-06-01 DOI: 10.4067/s0718-28132021000100016
A. Abella, I. García-Arango, F. Hacar
{"title":"Historia y funcionamiento de los sistemas de ventilación en túneles de carretera","authors":"A. Abella, I. García-Arango, F. Hacar","doi":"10.4067/s0718-28132021000100016","DOIUrl":"https://doi.org/10.4067/s0718-28132021000100016","url":null,"abstract":"the well-known Channel Tunnel, St. Gotthard, Britannia railway bridge, the Chorro, Severn, Mersey, Blackwall, Holland, Queensway and Karawanken; important as far as ventilation is concerned. After a presentation of the different systems used in the ventilation of road tunnels, we continue with the study of how atmospheric conditions can force supplementary ventilation to control the movement of air in tunnels, especially in long tunnels.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116509672","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
Determinantes de la innovación en empresas constructoras de la Región de Atacama, Chile 智利阿塔卡马地区建筑公司创新的决定因素
Obras y proyectos Pub Date : 2021-06-01 DOI: 10.4067/s0718-28132021000100080
Hernán Pape, Amin Nazer
{"title":"Determinantes de la innovación en empresas constructoras de la Región de Atacama, Chile","authors":"Hernán Pape, Amin Nazer","doi":"10.4067/s0718-28132021000100080","DOIUrl":"https://doi.org/10.4067/s0718-28132021000100080","url":null,"abstract":"innovation are: a good economic environment, professionals prepared to innovate and availability of economic resources. Moreover, the factors that hinder the installation of innovation are: the lack of an innovation culture, the rigid organizational structure, the scarcity of resources and the low management capacity.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121111006","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
Losa curva de hormigón armado para Centro de Convenciones 会议中心弯曲钢筋混凝土板
Obras y proyectos Pub Date : 2021-06-01 DOI: 10.4067/s0718-28132021000100042
O. Reyes, Isel del Carmen Díaz, A. Ramos, Janet Otmara Martínez
{"title":"Losa curva de hormigón armado para Centro de Convenciones","authors":"O. Reyes, Isel del Carmen Díaz, A. Ramos, Janet Otmara Martínez","doi":"10.4067/s0718-28132021000100042","DOIUrl":"https://doi.org/10.4067/s0718-28132021000100042","url":null,"abstract":"se empleó el programa ETABS v17. El diseño incluye el cálculo del refuerzo para el Estado Límite Último y la verificación del Estado Límite de Servicio de deformación y según ACI-318 (2019) y NC-207 (2019). Se verifica, además, el cumplimiento de requisitos de resistencia fuego. present, new building projects are being developed that involve additional considerations in computational modelling, analysis and structural design. An example of this is the structural slabs with complex shapes, widely used in contemporary architectural proposal. This work has the objective of presenting the structural conception, computational modelling, analysis and structural design of the curve roof slab of the Convention Center of a hotel located in Havana. ETABS v17 software was used. The analysis includes the calculation of reinforcement based on the Strength Limit and the verification of Serviceability in terms of deflections and cracking by ACI-318 (2019) and NC-207 (2019). Compliance with fire resistance requirements is also verified.","PeriodicalId":391731,"journal":{"name":"Obras y proyectos","volume":"29 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114025006","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
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