Exploració per autor "López Almansa, Francisco"
Ara es mostren els items 46-65 de 109
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Feasibility of hysteretic energy dissipators for bulk seismic protection of vulnerable buildings in Chile
Domínguez Santos, David; López Almansa, Francisco (International Association for Earthquake Engineering, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper explores the viability of using energy dissipators for implementing earthquake-resistant measures for common vulnerable buildings in Chile. Hysteretic devices (e.g. based on plastification of metals) are considered. ... -
Generating damping modification factors after artificial inputs in scenarios of local records scarcity
Piscal Arévalo, Carlos Mario; López Almansa, Francisco (2018-06-11)
Article
Accés obertThe damping modification factors are utilized to alter the design spectral ordinates for constructions whose damping differs significantly from 5%, this being the level that is routinely considered by most codes. Such ... -
Herramienta automatizada para evaluación rápida de la vulnerabilidad estructural y no estructural de hospitales
Rivera Rogel, Carmen Alicia; López Almansa, Francisco; Albareda Valls, Albert; Avellaneda Diaz-Grande, Jaime; Sánchez Vaqué, Àngel (Asociación Chilena de Sismología e Ingeniería Antisísmica, 2019)
Comunicació de congrés
Accés obertA tool for rapid and automatic assessment of the seismic structural and non-structural vulnerability of hospitals is presented; this vulnerability refers to the operability after strong earthquakes. The non-structural ... -
Identificación no lineal de movimientos sísmicos en el lecho rocoso ingenieril a partir de registros tomados en la superficie
Rodríguez Sánchez, Julio; López Almansa, Francisco; Ledesma Villalba, Alberto (Asociación Chilena de Sismología e Ingeniería Antisísmica, 2019)
Text en actes de congrés
Accés obertEn ingeniería sísmica, los registros disponibles suelen ser superficiales y, en consecuencia, los movimientos en las capas inferiores deben ser estimados conociendo el perfil estratigráfico del terreno; estos movimientos ... -
Importance of non-simulated failure modes in incremental dynamic analysis (IDA) of non-ductile RC frames
López Almansa, Francisco; Alfarah, Bashar; Oller Martínez, Sergio Horacio (International Association for Earthquake Engineering, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialNonlinear dynamic analysis of reinforced concrete structures requires a thorough understanding of behavior of structural elements for all levels of performance, especially collapse. Main reason is that reinforced concrete ... -
Importancia del diseño de las conexiones viga-columna en la capacidad sismorresistente de edificios dúctiles de concreto reforzado en México
Godínez Domínguez, Eber; López Almansa, Francisco (2014)
Article
Accés restringit per política de l'editorialSe presenta un estudio en que se muestra la importancia que tiene la adecuada revision de las conexiones viga-columna durante el proceso de diseno de edificios estructurados con base en marcos ductiles de concreto reforzado; ... -
Improving the structural reliability of steel frames using posttensioned connections
Bojórquez Mora, Edén; López Barraza, Arturo; Reyes Salazar, Alfredo; Ruiz Gómez, Sonia Elda; Ruiz García, Jorge; Formisano, Antonio; López Almansa, Francisco; Carrillo León, Julián; Bojórquez Mora, Juan (2019-01-01)
Article
Accés obertIn this paper, various moment-resisting steel frames (MRSFs) are subjected to 30 narrow-band motions scaled at different ground motion intensity levels in terms of spectral acceleration at first mode of vibration in order ... -
Interpretación analítica de la fórmula de Branson para el cálculo de flechas en piezas de hormigón armado
Marí Bernat, Antonio Ricardo; López Almansa, Francisco; Mirambell Arrizabalaga, Enrique (1990-01)
Article
Accés obertEn este trabajo se presenta un estudio sobre la deformabilidad de vigas de hormigón armado, basado en consideraciones de tipo teórico. Las vigas que se han considerado tienen características similares a las que fueron ... -
Investigation on the down-aisle ductility of multiple bay pallet racks by means of pushover analyses
Bové Tous, Oriol; Casafont Ribera, Miguel; Bonada Bo, Jordi; Ferrer Ballester, Miquel; López Almansa, Francisco (2023-07)
Article
Accés obertThis paper presents numerical pushover analyses on multiple bay pallet racks, aiming to quantify variations in global ductility when using different beam-to-upright connections. The connections differ in the layout of the ... -
Low lateral stiffness underground structures for improved seismic performance: application to the Kobe Daikai station
Bu, Xiangbo; Ledesma Villalba, Alberto; López Almansa, Francisco (Elsevier, 2023-09)
Article
Accés obertUnderground cut-and-cover structures are commonly designed as rigid box sections; however, in practical applications, connections between walls and slabs are frequently rather hinged (because of ease of construction). The ... -
Modelización numérica del comportamiento estructural cíclico de barras esbeltas de acero con pandeo restringido
Castro Medina, J.C.; López Almansa, Francisco; Oller Martínez, Sergio Horacio (Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Accés obertEste trabajo presenta un modelo numérico del comportamiento estructural cíclico de barras de pandeo restringido, comúnmente utilizadas como una alternativa a las clásicas barras de arriostramiento concéntrico para protección ... -
Modelización numérica del comportamiento estructural de barras de pandeo restringido
Castro Medina, J. C.; López Almansa, Francisco; Oller Martínez, Sergio Horacio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2011)
Llibre
Accés obertLos disipadores de energía son elementos pasivos que se incorporan a edificios y a otras construcciones que, pueden estar sometidas a acciones dinámicas, especialmente movimientos sísmicos. Su finalidad es absorber la ... -
Modelo numérico del comportamiento estructural de barras de pandeo restringido
Castro Medina, Juan Carlos; López Almansa, Francisco; Oller Martínez, Sergio Horacio (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2009)
Text en actes de congrés
Accés restringit per política de l'editorial -
New design approach for base-isolation of essential sanitary facilities in high-seismicity zones of Colombia
López Almansa, Francisco; Piscal Arévalo, Carlos Mario (International Association for Earthquake Engineering, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialBase isolation is one of the most innovative and successful solutions for seismic protection of building structures. In countries like Japan, China, Russia, Italy and USA, there are numerous isolated buildings. On the other ... -
New formulation for estimating the damping parameter of the Kelvin-Voigt model for seismic pounding simulation
López Almansa, Francisco; Kharazian, Alireza (2018-11-15)
Article
Accés obertSeismic pounding between adjoining buildings frequently causes serious damage; although collision can be avoided with proper separation, can still occur due to code non-fulfillment, loose requirements of old codes, and ... -
New methodology for calculating damage variables evolution in Plastic Damage Model for RC structures
Alfarah, Bashar; López Almansa, Francisco; Oller Martínez, Sergio Horacio (2017-02-01)
Article
Accés obertThe behavior of reinforced concrete (RC) structures under severe demands, as strong ground motions, is highly complex; this is mainly due to joint operation of concrete and steel, with several coupled failure modes. ... -
New modifying truss model and numerical simulation of steel fiber reinforced concrete under pure torsion
Hui, Lei; López Almansa, Francisco (Elsevier, 2018-06-01)
Article
Accés restringit per política de l'editorialThis paper presents a new strut-and-tie model on steel fiber reinforced concrete (SFRC) members under uniform (Saint Venant) torsion. This truss model is intended to reproduce the structural behavior in ultimate limit ... -
Nonlinear time-history analysis of a base-isolated RC building in Shanghai founded on soft soil
Dagen, Weng; Tao, Li; Alfarah, Bashar; López Almansa, Francisco (International Association for Earthquake Engineering, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialA 6-story RC building with base isolation using rubber bearings and viscous dampers has been recently built in Shanghai. Since the building is founded on soft soil, concern regarding base isolation suitability arose; ... -
Novel seismic design solution for underground structures. Case study of a 2-story 3-bay subway station
Bu, Xiangbo; Ledesma Villalba, Alberto; López Almansa, Francisco (Elsevier, 2022-02)
Article
Accés obertThis paper proposes an innovative seismic design approach for shallow rectangular cut-and-cover underground subway or railway stations. The traditional approach is to design rigid frame-like structures by connecting rigidly ... -
Nueva tecnología de construcción mixta ligera acero-madera para edificios sismo-resistentes
Segués Aguasca, Edgar; Rodríguez Cantalapiedra, Inma; López Almansa, Francisco (Publicaciones EPSEB, 2017)
Text en actes de congrés
Accés obertEste trabajo describe una nueva técnica de construcción mixta de madera y acero. Esta solución constructiva está destinada principalmente a proporcionar alta resistencia lateral y rigidez, cualidades útiles para resistir ...