Research Outputs
Implementation of building information modeling technologies in wood construction: A review of the state of the art from a multidisciplinary approach
This research raises questions about the possibilities and options of using the BIM methodology associated with software for the wood design and construction of structure modeling along an asset’s cycle life. Likewise, several academic and research initiatives are reviewed. In this sense, this paper aims to establish an appropriate link between two agendas that the architecture, engineering, and construction (AEC) industry, academia, and governments normally handle separately. By conducting several literature reviews (book, journals, and congresses) and extensive software tests (BIM software: Revit v2023, Archicad v27, Tekla, and wood plug-ins: AGACAD, Archiframe, Timber Framing 2015, WoodStud Frame, etc.), the state-of-the-art was assessed in both fields, and several cases linking BIM and wood are shown in detail and discussed. Various theoretical samples are modelled and shown, and the advantages and disadvantages of each technique and stage are explained. On the other hand, although wood construction has been most common for hundreds of years, this is not the case of BIM software developments associated with this materiality. Furthermore, since the appearance of materials such as steel and reinforced concrete, all software developments have focused on these materials, leaving aside the possibility of developing applications for use in wood projects. According to that previously discussed, it can be concluded that BIM for wood has been used more frequently in academia, that both fields have several common processes, and, in many cases, that only a few BIM-wood tools have been used, thus disregarding the high potential and high level of benefits that result with the application of these methodologies for the complete building life cycle (design, construction, and operation).
Proyecto de optimización de planchas yeso cartón y perfiles metalcon para un edificio en Concepción
Se elaboró un estudio que consiste en la evaluación económica de dos materiales importantes en la construcción de la tabiquería interior del 3° piso en un edificio de 21 pisos ubicado en la ciudad de Concepción. Dichos materiales son las planchas de yeso cartón y los perfiles metalcon. Cabe señalar,que dentro de este estudio se evaluó el costo de adquisición de estos dos materiales, como también el costo asociado a mano de obra y maquinarias que intervienen dentro del proceso de transporte en la obra. Además, se contabilizaron los residuos generados por ambos materiales, con la finalidad de cuantificar los costos relacionados a la gestión de los residuos. Finalmente, se presenta una propuesta para lograr la optimización de estos materiales dentro de la obra, con el objetivo de conseguir un mayor aprovechamiento de ambos. Esto conlleva grandes beneficios para la empresa, puesto que se logra disminuir la cantidad de materiales que se utilizan actualmente y la de residuos generados dentro de la obra.
Seismic performance of RC moment frame buildings considering SSI effects: A case study of the new Venezuelan seismic code
The Soil–Structure Interaction (SSI) effect has been widely evidenced during several earthquakes around the world. In the Venezuelan context, the seismic event in Caracas in 1967 showed the significant consequences of designing buildings without considering the SSI effect. Nevertheless, limited research on the seismic performance of concrete moment frames (commonly used as structural systems in office and residential buildings in Venezuela and Latin America) considering the SSI effects has been developed, although there have been continuous updates to the Venezuelan Seismic Code. In this research, the influence of the SSI on the seismic performance of RC moment frame buildings designed according to the New Venezuelan Seismic Code was studied. An extensive numerical study of 3D buildings using concrete moment frames supported by mat foundations on sandy and clayey soils was performed. The response spectrum method, non-linear static analysis, and non-linear dynamic analysis were used to assess the seismic response of the archetypes studied. The results show that SSI effects can have a significant impact on the seismic response of RC moment frame buildings, increasing the interstory drift ratio and decreasing the shear forces. As is shown in fragility curves, the probability of collapse increases for cases with flexible bases in comparison to the cases of models with fixed bases. Additionally, in the 24-story archetype, the fixed-base model reached a maximum probability of collapse. Finally, a new proposal for the reduction of the strength-reduction factor (R) must be incorporated into the Venezuelan Seismic Code to improve the safety of the structures. Limitations in the use of RC moment frames must be incorporated for high-rise buildings since, as the present work demonstrates, for high-period structures, the normative provisions are not reached.