Con esta herramienta te facilitamos un acceso a todas las ofertas y demandas de tecnología europeas y a búsquedas de socios para participar en propuestas europeas de I+D publicadas en la red Enterprise Europe Network, pudiendo filtrar los resultados para facilitar las búsquedas más acordes con tus necesidades.

¿Quieres recibir estos listados de oportunidades de colaboración en tu correo de forma periódica y personalizada? Date de alta en nuestro Boletín

Para optimizar los resultados de la búsqueda, se recomienda utilizar términos en inglés.

Nuevo método de refuerzo estructural basado en materiales inteligentes para fijar y controlar daños estructurales en estructuras de construcción e ingeniería civil

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOES20160929001
Publicado:
07/11/2016
Caducidad:
07/11/2017
Resumen:
Un grupo de investigación de una universidad española ha desarrollado un nuevo método de refuerzo estructural lineal activo para reducir el efecto y reparar daños estructurales, como grietas en vigas, columnas o placas que se producen por la acción de fuerzas externas. Este método es útil en casos en los que las estructuras se exponen a eventos accidentales, como terremotos, explosiones, incendios, etc. El grupo de investigación ofrece acuerdos de licencia para explotar la tecnología a compañías de la industria de ingeniería y construcción con experiencia en materiales inteligentes e interesadas en ofrecer el desarrollo de proyectos a medida a sus clientes.


Details

Tittle:
New method of structural strengthening based on smart materials to fix and control structural damages in building and civil engineering structures.
Summary:
A research group from a Spanish University, has developed a new method of active structural linear reinforcement to minimize the effect and repair structural damage as cracks in beams, columns or slabs appeared by the action of external forces. A license agreement for the exploitation of the technology is being offered to companies in the engineering and construction industry with experience in smart materials and interest in offering the development of turnkey projects to its customers.
Description:

A research team from a Spanish University with wide expertise on civil engineering has developed a method of active strengthening to prevent and/or reduce the impact of damages in structural elements using a shape memory alloy (SMA).

There are mainly two different systems of strengthening to prevent or reduce such cracks:

Passive strengthening: used to increase the safety of the structure and its strength to actions of forces that haven´t yet occurred. For proper operation, it´s necessary that the strengthened structure increases its deformation and its level of damage, which is a drawback.

Active strengthening: used to recover existing strains in the structure and increase its strength. This type of reinforcement generally requires hydraulic jacks and anchorages, so it´s necessary a large work area to accommodate these auxiliary elements.

In this new method, an element of SMA prestrained reinforcement (which may be a bar, wire or similar element) is placed around the structure to be strengthened and then activated by heating, resulting in the activation of said reinforcement. As a result, the reinforcement tries to become shorter, but unsuccessfully because of the wrapped support element, transmitting stresses to the structural element, significantly increasing the shear strength. These stresses are maintained when the material is cooled.

The main advantage of this method over the ´state of art´ is that it allows to carry out an active reinforcement against shear or punching stress in structural elements (as beams, slabs or columns) without the need of a mechanical stressing process and using the properties of shape memory alloys (SMA), avoiding the accumulation of damage to begin its work.

The invention may be useful in cases where the structure may be exposed to accidental events such as earthquakes, explosions, fires, etc. It is applicable to structural elements with shear or punching forces.

The research group of the university is interested in carrying out a licensing agreement with small, medium or large companies in the engineering and construction industry with experience in smart materials and interest in offering the development of turnkey projects to its customers.
Advantages and Innovations:
· This technology doesn´t require a mechanical tensioning process (contrary to conventional active reinforcements) because it uses the shape memory effect of SMA alloys.


· It doesn´t require the accumulation of initial structure damages to be reinforced (contrary to conventional passive reinforcements) because the reinforcement is not based on dilatancy of the structure.

· It can be applied to slabs, beams and columns using the same method.

· If the SMA material is not too ductile (ability to deform plastically without breaking), you can make a preliminary step of rounding the edges of the cross-section of the structure to prevent the existence of vertices of 90º.
Stage of Development:
Concept stage
IPs:
Patent(s) applied for but not yet granted

Partner sought

Type and Role of Partner Sought:
The research group is interested in carrying out a license agreement with small, medium or large companies within the field of the engineering and construction with experience in smart materials.

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
Spanish

Keywords

Technology Keywords:
02007002 Building materials
02006001 Materials, components and systems for construction
02006003 Resistencia al fuego / seguridad