About
76
Publications
51,306
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
366
Citations
Introduction
Skills and Expertise
Current institution
Publications
Publications (76)
El Puente Pedro de Valdivia, ubicado en la ciudad chilena de Valdivia, fue abierto al tráfico en el año 1954 y desde entonces ha sido una de las principales arterias de la ciudad. Se trata de un cajón de hormigón armado multicelular con una luz principal de 69 m y una configuración estructural del tipo viga Gerber. Durante el gran sismo del año 196...
Resumen En 2020, la Dirección de Vialidad Región de la Araucanía solicitó y supervisó la elaboración del diseño de un puente metálico desmontable (consultoría SAFI: 325.137, ID: 2261-65-O120). Entre las especificaciones se definió que sea un puente modular, con una longitud mínima de 25,0 m, un ancho de 5 m, con un camión de diseño AASHTO HS25 y si...
Resumen El puente Treng Treng Kay Kay es un puente atirantado asimétrico de 240 metros que conecta las comunas de Temuco y Padre Las Casas. Dado su carácter de puente no convencional, SERVIU Región de La Araucanía encargó un estudio especializado que entregara directrices necesarias para realizar sus inspecciones y mantenimientos, y servir como her...
En mayo 2021 el Laboratorio de Ingeniería de Puentes de la UACh realizó la instrumentación y prueba de carga de la "Pasarela Exploradores", un puente colgante vehicular de 132,0 m de luz ubicado en la Región de Aysén. Las mediciones fueron comparadas con el modelo de elementos finitos. El objetivo del estudio fue verificar el correcto comportamient...
En 2020, la Dirección de Vialidad Región de la Araucanía solicitó y supervisó la elaboración del diseño
de un puente metálico desmontable (consultoría SAFI: 325.137, ID: 2261-65-O120). Entre las
especificaciones se definió que sea un puente modular, con una longitud mínima de 25,0 m, un ancho de 5
m, con un camión de diseño AASHTO HS25 y sin elemen...
En Chile existen 6781 puentes de carretera en servicio, diseñados utilizando normativas de hasta más de 100 años atrás. Considerando el cambio en el tráfico vehicular desde entonces, es válido cuestionarse si estas estructuras pueden resistir las cargas actuales. Este estudio tiene por objetivo evaluar la capacidad que tienen los puentes, construid...
En mayo 2021 el Laboratorio de Ingeniería de Puentes de la UACh realizó la instrumentación y prueba
de carga de la “Pasarela Exploradores”, un puente colgante vehicular de 132,0 m de luz ubicado en la
Región de Aysén. Las mediciones fueron comparadas con el modelo de elementos finitos. El objetivo
del estudio fue verificar el correcto comportamient...
El puente Treng Treng Kay Kay es un puente atirantado asimétrico de 240 metros que conecta las
comunas de Temuco y Padre Las Casas. Dado su carácter de puente no convencional, el SERVIU
Región de La Araucanía encargó un estudio especializado que entregara las directrices necesarias para
llevar a cabo inspecciones y mantenimientos en el puente atira...
Puente Yelcho is a concrete cable stayed bridge built in chile in 1990. This bridge presents the particular
feature of being formed by 112 stayed cables, which are actually bars joined with couplers to reach the
necessary length in each case. The difficult environment where it is located makes possible future
durability problems that need to be ana...
Network arch bridges have inclined hangers with multiple intersections. The hanger force distribution is very sensitive to the construction tolerances. In order to guarantee correct hanger forces, the forces must be measured and adjusted during the construction. In the Manchuria Bridge, Chile the hanger forces were measured with strain gauges and b...
The Manchuria Bridge is a network arch with a span of 60.5 m, which was built in Curacautín, Chile in 2019. Due to the actual construction conditions, design modifications were necessary. The most important are: change of scaffold lowering method, hanger length adjustment without load, change of upper and lower hanger connection details, transverse...
The TrengTreng KayKay is an asymmetrical cable stayed bridge, with a total length of 240 m, spanning
the Cautín River on the outskirts of the city of Temuco, in Chile. The two more outstanding elements of
the bridge are the main span, 140 m long, over the river, and the concrete pylon, 70 m tall, which is made
of two broken line columns bound at th...
Describe el qué y el porqué de la instrumentación para usarla durante la construcción de puentes. Da ejemplos realizados en Chile.
This paper describes the methodology and the results of an in service assessment of a three-story glulam
timber building. The entire structure is made of radiate pine glulam timber. After construction works for an elevator pit,
excessive vibrations and slab deflections were reported. In order to evaluate necessity of countermeasures, a visual
inspe...
This paper describes the methodology and the results of an in service assessment of a three-story glulam timber building. The entire structure is made of radiate pine glulam timber. After construction works for an elevator pit, excessive vibrations and slab deflections were reported. In order to evaluate necessity of countermeasures, a visual inspe...
El puente Pedro de Valdivia (Valdivia, Chile) fue inaugurado en el año 1954 y reparado tras el gran sismo de Valdivia en el año 1962. El puente consta de cinco vanos: dos vanos laterales de aproximadamente 35 m y un tramo central de 3 vanos distribuidos aproximadamente en luces de 50+69+50 m, siendo la longitud total del puente 239 m. El ancho del...
The combined structural response of the ballasted track and the deck of railway bridges causes longitudinal forces and displacements that can affect the ultimate resistance of the rail or the serviceability of the bridge. Therefore, the resulting rail stresses and relative rail-deck displacements are limited according to the European design codes....
Se presenta la metodología de diseño sísmico de dos puentes de ferrocarril en California, conforme a los principios contenidos en la normativa Caltrans Seismic Design Criteria, la cual está basada en la protección por capacidad. Se pretende asegurar que el puente no colapsará durante el sismo, pero se acepta que se comportará inelásticamente durant...
Se presenta la metodología de diseño sísmico de dos puentes de ferrocarril en California, conforme a los principios contenidos en la normativa Caltrans Seismic Design Criteria, la cual está basada en la protección por capacidad. Se pretende asegurar que el puente no colapsará durante el sismo, pero se acepta que se comportará inelásticamente durant...
Breve presentación de la Investigación en Madera realizada en la Universidad Austral de Chile en sus distintas unidades.
There is usually a high number of bridges within any road network. Every bridge itself has a big amount of associated information, which derives from the initial cadaster and increases considerably during the bridge’s lifetime with every inspection and maintenance work. For an efficient management of this information a computation system is require...
There is usually a high number of bridges within any road network. Every bridge itself has a big amount of associated information, which derives from the initial cadaster and increases considerably during the bridge’s lifetime with every inspection and maintenance work. For an efficient management of this information a computation system is require...
The Treng Treng – Kay Kay Bridge is a one pylon cable‐stayed
bridge that crosses over the River Cautín and is located in
Temuco, Chile. The deck, with a total length of 240 m, is
composed of four minor spans and a main 140 m cablestayed
span. It is 27 m wide carrying two traffic lanes and one
sidewalk in each direction and an additional bike lane....
The Treng Treng – Kay Kay Bridge is a one pylon cable‐stayed
bridge that crosses over the River Cautín and is located in
Temuco, Chile. The deck, with a total length of 240 m, is
composed of four minor spans and a main 140 m cablestayed
span. It is 27 m wide carrying two traffic lanes and one
sidewalk in each direction and an additional bike lane....
The Petrohue Waterfalls in South of Chile are located in one of the most visited of Chile´s National Parks. It receives up to 7,000 visitors per day, most of them without outdoor gear. When the existing footbridge was found structurally insufficient, a new footbridge should be designed that complies with the Park Ranger’s vision of a modern Nationa...
p>The Petrohue Waterfalls in South of Chile are located in one of the most visited of Chile´s National Parks. It receives up to 7,000 visitors per day, most of them without outdoor gear. When the existing footbridge was found structurally insufficient, a new footbridge should be designed that complies with the Park Ranger's vision of a modern Natio...
The TrengTreng KayKay is a cable-stayed bridge that crosses the River Cautín and it is located on
the outskirts of the city of Temuco, Chile. The broken line design of the pylon shape, 70 m high, is
based on a local legend and it simulates the good and evil snakes biting each other. The structure
is composed of four minor spans and the main one...
Arch bridges can be classified into deck arch bridges (featuring arches below the deck) and through arch bridges (those with arches above the deck, generally tied arches). In all arch bridges, the structural difficulty can be found in the minimization of the misalignment of the arch axis and the line of thrust, as well as a sufficient bending and b...
Concrete cracking in timber–concrete composite beams causes a stiffness reduction of the concrete and increases deformations and stresses. The consideration of this effect in design is indispensable, because otherwise an unsafe design is obtained. However, existing design recommendations range from ignoring the effect to suggesting a 60% stiffness...
Despite of widely implemented advances in TCC bridge technology, there are still no satisfying design recommendations that consider the influence of concrete cracking on the distribution of forces and deformation. A research project at Universidad Austral de Chile studied several aspects of concrete cracking in TCC bridges with timber beams of grea...
![FIGURA 10 Sección Transversal Ensayada, Brasil (Soriano & Mascia, 2008]](profile/Frank-Schanack/publication/301214013/figure/fig1/AS:349972651364354@1460451390942/FIGURA-10-Seccion-Transversal-Ensayada-Brasil-Soriano-Mascia-2008_Q320.jpg)
Puentes de madera son un elemento importante de la red vial Chilena, dado que aproximadamente un 20% de todos los puentes carreteros son de este material. Sin embargo, debido a problemas de durabilidad en las tipologías usada habitualmente, los puentes de madera son considerados ser de una calidad inferior; de hecho se catalogan como puentes provis...
Dentro de una red vial existen numerosos puentes que normalmente presentan algún grado de daño y/o deficiencia. Dentro de la tarea de conservación de puentes, se deben realizar trabajos de mantención para eliminar los daños, corregir las deficiencias o mitigar los efectos que ambos puedan causar. Normalmente, el costo de la ejecución de todos los t...
A base de una inspección visual, sin medios de acceso especiales, de los 600 puentes que forman la red vial pública de la Región de Los Ríos, se determinaron sus evidentes daños y deficiencias. Los resultados permiten evaluar el estado de conservación particular de cada puente y en general de los puentes de la Región. Entre los daños más frecuentes...
Dentro de una red vial existen numerosos puentes que normalmente presentan algún grado de daño y/o deficiencia. Dentro de la tarea de conservación de puentes, se deben realizar trabajos de mantención para eliminar los daños, corregir las deficiencias o mitigar los efectos que ambos puedan causar. Normalmente, el costo de la ejecución de todos los t...
TCC bridges are a more durable alternative to the very high number of conventional timber bridges en Chile’s road network. In a research project, numerical analyses and laboratory tests were conducted in order to obtain the influence of concrete cracking in TCC beams. The results from the FEM simulations and from the shear tests indicate that the i...
In the frame of a contract between the Chilean National Highway Authority, APIA XXI IAC S.A. and the Universidad Austral de Chile, all bridges of the Los Rios Region have been inspected for structural, functional and durability damages or deficiencies. The total number of bridges inspected is 600 and includes 95 composite bridges, 98 reinforced and...
TCC bridges are a more durable alternative to the very high number of conventional timber bridges en Chile’s road network. In a research project, numerical analyses and laboratory tests were conducted in order to obtain the influence of concrete cracking in TCC beams. The results from the FEM simulations and from the shear tests indicate that the i...
TCC bridges are a more durable alternative to the very high number of conventional timber bridges en Chile's road network. In a research project, numerical analyses and laboratory tests were conducted in order to obtain the influence of concrete cracking in TCC beams. The results
from the FEM simulations and from the shear tests indicate that the i...
In the frame of a contract between the Chilean National Highway Authority, APIA XXI IAC S.A. and the Universidad Austral de Chile, all bridges of the Los Rios Region have been inspected for structural, functional and durability damages or deficiencies. The total number of bridges inspected
is 600 and includes 95 composite bridges, 98 reinforced and...
The TrengTreng - KayKay Bridge is a cable-stayed bridge that crosses over the River Cautín and it is located on the outskirts of Temuco, Chile. The design of the pylon`s shape is based on a local legend and it represents two snakes, corresponding to good and evil, biting each
other. The structure, with a total length of 240 m, is composed of four m...
This paper focuses on the principal engineering aspects of the Network Arch Bridge over the river Tercero, which joins the cities Villa Maria and Villa Nueva in the province of Cordoba, Argentina. This new bridge replaces the old steel structure located nearby.The structural concept
of the network arch allows to cross the Tercero riverbed with a si...
![Load-displacement behaviour of ballasted tracks [12].](publication/260842975/figure/fig4/AS:1088661122748483@1636568446749/Load-displacement-behaviour-of-ballasted-tracks-12_Q320.jpg)
The track-structure interaction effects are usually analysed with conventional FEM programs, where it is difficult to implement the complex track-structure connection behaviour, which is nonlinear, elastic-plastic and depends on the vertical load. The authors developed an alternative analysis method, which they call the relative displacement method...
In certain cases the concrete slab of wood concrete composite beams can crack; deformations will
increase and the internal forces will be redistributed. At present, the design recommendations
available vary from ignoring the effect to reducing stiffness by 60%.
In order to characterize more correctly the influence of the concrete cracking on the...
In certain cases the concrete slab of wood concrete composite beams can crack; deformations will increase and the internal forces will be redistributed. At present, the design recommendations available vary from ignoring the effect to reducing stiffness by 60%. In order to characterize more correctly the influence of the concrete cracking on the fo...
Estética Propiedad deseable/imprescindible de un puente El valor estético, el aspecto visual, de todos los puentes importa, ya que todos forman parte de nuestra vida Los ingenieros diseñan los puentes, ellos deben encargarse del diseño estético No existen recetas ni reglas para el diseño estético El diseño es producto de un proceso creativo (se cre...
The 27 February 2010 Chile earthquake is currently the fifth-strongest earthquake measured in the world. Despite this fact, the damage to the road infrastructure can be classified as moderate. Of the 6,000 state bridges in the affected region, only about 30 bridges had to be closed to traffic. This paper includes the most pertinent results of a fie...
The February 27, 2010 Chile earthquake is currently the sixth strongest earthquake measured in the world. There was important damage to the road infrastructure and more than 200 bridges were damaged. One of the bridges with severe damage was the Cardenal Raúl Silva Henríquez Bridge over the River Maule in Constitución. This 912.5 m long composite g...
The February 27, 2010 Chile earthquake is currently the sixth strongest earthquake measured in
the world. There was important damage to the road infrastructure and more than 200 bridges were damaged.
One of the bridges with severe damage was the Cardenal Raúl Silva Henríquez Bridge over the River Maule
in Constitución. This 912.5 m long composit...
El articulo detalla los principales aspectos del proyecto del Puente en Arco sobre el Río Tercero, que tiene por objeto el cruce del río del mismo nombre, vinculando las ciudades de Villa María y Villa Nueva (provincia de Córdoba, Argentina), en reemplazo del puente metálico que se encuentra adyacente al emplazamiento del nuevo puente. La tipología...
Diseno de puentes en arco tipo network.
The new Spanish highway bridge, the Pujayo Viaduct, has a single-cell box girder. Owing to the large width of 26.1 m, the box girder had to be stiffened by transverse upper and lower ribs, by haunches in the connection web-flange and by inclined webs. Together with the variable girder depth, a relatively complicated geometry was created that was an...
El presente documento aborda una investigación teórico-experimental acerca de estructuras de sección mixta hormigón-madera laminada. Se diseñan vigas mediante la aplicación del método gamma, descrito en las normas NCh 1198 y Eurocódigo 5. Para validar este modelo de cálculo, se realizaron ensayos de corte en probetas mixtas (unidas por tirafondos)...
This paper addresses a theoretical and experimental research conducted on glued laminated timber-concrete composite structures. It focuses on the validation of simple wood screws to be used as connectors in bridges. Beams are designed on the basis of the gamma method, described in the standards NCh 1198 and Eurocode 5. To validate this analysis mod...
This work describes some of the most important results of the experimental and numerical analyses of Escaleritas Viaduct, Spain. Before the inauguration of this composite cable-stayed bridge in 2006, the bridge authority required a dynamic load test identifying, for instance, the natural vibration modes, the dynamic magnification factor, and the ma...
Asymmetric network arch bridges offer new possibilities to design engineers. At
the same time, they ensure both economic and static efficiency. In contrast to tied arch bridges
with vertical hangers, in network arches without hanger relaxation, the line of thrust lies within
the arch for all load cases. Therefore, the arch shape does not have to be...
Danos observados en puentes durante el terremoto del Maule, Chile 2010
Network arches are tied arch bridges with inclined hangers, which have multiple intersections. In the last five years there has been built a significant number of network arch bridges, maybe initiating a turning away from the traditional tied arches with vertical hangers. When introducing new structures it is important to understand well its struct...
Network arches are tied arch bridges with inclined hangers, which have multiple intersections. In the last five years there has been built a significant number of network arch bridges, maybe initiating a turning away from the traditional tied arches with vertical hangers. When introducing new structures it is important to understand well its struct...
Para el refuerzo de estructuras de hormigón se utilizan desde hace unas dos décadas hormigones reforzados con fibras de vidrio o carbón, que tienen las ventajas de la anticorrosividad y de una alta resistencia a pesar de su pequeño espesor. Para aprovechar estas propiedades de material también para la construcción de nuevas estructuras, se desarrol...
Para el refuerzo de estructuras de hormigón se utilizan desde hace unas dos décadas hormigones reforzados con fibras de vidrio o carbón, que tienen las ventajas de la anticorrosividad y de una alta resistencia a pesar de su pequeño espesor. Para aprovechar estas propiedades de material también para la construcción de nuevas estructuras, se desarrol...
Nachdem der Netzwerkbogen über Jahrzehnte nahezu unbeachtet blieb, bildet er heute einen immer beliebteren Bestandteil des Brückenbaurepertoires. Seine statischen Vorteile überzeugen mehr und mehr Brückenbauverwaltungen, so dass in aller Welt zahlreiche neue Netzwerkbogenbrücken entstehen. Umso interessanter werden Hinweise für einen einfachen, ras...
Asymmetrische Netzwerkbögen eröffnen dem entwerfenden Ingenieur neue gestalterische Möglichkeiten bei gleichzeitig guter Wirtschaftlichkeit und hoher Effizienz des Tragwerks. Im Gegensatz zu Stabbogenbrücken mit vertikalen Hängern befindet sich die Stützlinie in Netzwerkbögen ohne Hängerausfall für alle Lastfälle im Bogen. Daher muss die Bogenform...
Netzwerkbögen sind Stabbogenbrücken mit geneigten Hängern, die sich mehrmals kreuzen. In den letzten fünf Jahren wurde eine bedeutende Anzahl von neuen Netzwerkbogenbrücken gebaut und vielleicht eine Abwendung von den traditionellen Stabbögen mit vertikalen Hängern eingeleitet. Wenn neue Tragwerke in die Bautechnik eingeführt werden, ist es wichtig...
Network arches are tied arch bridges with inclined hangers, which have multiple intersections. In contrast to tied arch bridges with vertical hangers they are mainly subject to axial forces and only little longitudinal bending, leading to possible savings of more than 50% of structural steel. Despite or maybe because of this amazing claim, few netw...
The study concerns bridge collapses focusing on metal structures. It is based on literature and news research, due to the lack of extensive compendiums of this unpleasing but important topic. At first, a short overview of the occidental history of metal bridges is given presenting the historic context for the described incidents. It is followed by...
Pinus radiata D. Don growing in Chile, South America, was hydro thermally treated and tested. With an increase of the temperature or the time of treatment an increase on mass loss and a reduction on wood density were determined. A reduction on bending strength and MOE was also detected. The maximum swelling (after conditioning in a water bath) incr...
Pinus radiata wood was treated under hydrothermal conditions (steam) in an autoclave. The effect of temperature and time were studied. Bending strength, equilibrium moisture content, swelling and pH value of residual water were determined. Following effects were determined: a) a reduction of pH value, b) a considerable reduction of wooden mass, c)...
Network arches are bowstring arch bridges with inclined hangers that cross each other at least twice. The use of many hangers reduces bending in the arch and tie and therefore they can be made very slender. Network arches are likely to remain the world's most slender arch bridges. This publication is about the erection of this very efficient struct...
![Fig. 2. Front view of the example 100 m span railway bridge, unit: [mm]](profile/Frank-Schanack/publication/299980441/figure/fig1/AS:348575969103873@1460118395460/Front-view-of-the-example-100-m-span-railway-bridge-unit-mm_Q320.jpg)
![Fig. 5. Cross section of a single track steel deck, unit: [mm]](profile/Frank-Schanack/publication/299980441/figure/fig5/AS:348575969103877@1460118395579/Cross-section-of-a-single-track-steel-deck-unit-mm_Q320.jpg)
Network arches have inclined hangers that cross each other at least twice. It seems to happen more often for railway bridges than for road bridges that structural elements above the bridge deck are acceptable, which justifies investigations of the applicability of network arches. The tie can be a longitudinally prestressed concrete slab. This gives...
Network arches have inclined hangers that cross each other at least twice. It seems to happen more often for railway bridges than for road bridges that structural elements above the bridge deck are acceptable, which justifies investigations of the applicability of network arches. The tie can be a longitudinally prestressed concrete slab. This gives...
In this work the results of investigations into how to optimise a network arch for the special
demands of railway traffic are presented. Network arch bridges have inclined hangers that cross
each other at least twice. The beneficial structural behaviour leads to slender bridge members
mainly subjected to axial forces. Structural parts above the...
