Inhaltszusammenfassung

Rehabilitation and strengthening of timber structures desires efficient techniques and smart materials with a high load-bearing capacity. To obtain the benefits of these, an efficient connection between the structure and the reinforcing material is necessary. One solution is adhesive mounting to obtain an almost stiff bond line between the different components. Fiber reinforced materials (FRM) and epoxy polymer concrete can be effectively used to improve strength and stiffness of timber beams...Rehabilitation and strengthening of timber structures desires efficient techniques and smart materials with a high load-bearing capacity. To obtain the benefits of these, an efficient connection between the structure and the reinforcing material is necessary. One solution is adhesive mounting to obtain an almost stiff bond line between the different components. Fiber reinforced materials (FRM) and epoxy polymer concrete can be effectively used to improve strength and stiffness of timber beams in different configurations and techniques to utilize the material efficiently and to ensure long service life, especially for timber heritage buildings. Polymer composites have been used externally bonded and also near-surface mounted, placing the reinforcement into pre-cut grooves in the tension region of the timber members as well as additional stiffness provider in the compression region. All composite partners have been revised according the material formulation, structural performance of the composites, fracture and delamination behavior. The successive failure of laminates in FRM strengthened timber structures has been treated by a layer-by-layer failure analysis. .The investigated application of polymer composites has been proposed for the use in historic buildings even the expense of the materials themselves are quite high. In fact, the expense of the whole structural application procedure is lower compared to traditional reconstruction systems shown in a practical reconstruction project of a heritage building.» weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
Bauwesen und Architektur

DDC Sachgruppe:
Ingenieurwissenschaften