DEVELOPMENT OF ADHESIVE BONDED TIMBER-UHPC COMPOSITES - EXPERIMENTAL AND THEORETICAL INVESTIGATIONS

摘要

Timber-concrete composite constructions are an efficient alternative to common reinforced concrete slabs, because of high load-bearing capacity and stiffness on one side and low dead load on the other side. The major influence on the effectiveness of timber-concrete composite structures can be assigned to the stiffness of the connection between timber and concrete. Flexible connections like dowel-type fasteners, which were mostly used up to now, lead to decreasing bending stiffness of the members. Using the adhesion technology is the only way to realize a rigid compound. Especially if fiber-reinforced concretes are applied, this technology is reasonable because of the high tensile strength of the concrete surface. Furthermore there is no necessity for a conventional reinforcement due to the fiber-reinforcement of the concrete, and therefore the concrete-slab can be very slight.