An experimental investigation on the behavior of four different connection techniques for wood-concrete composite beams has been carried out. In three cases dowels were anchored to the timber member without any gluing material while in the latter case were fixed with epoxy resin. Moreover, in one connection technique the concrete slab is in contact with the timber element (dowel diameter 12 mm), while in the others a 25 mm boarding is interposed between them (connector diameter 16 mm). A special test method was used in the investigation aimed to simulate as better as possible the actual behavior of dowels in the composite beam. The results evidenced that epoxy resin plays an important role in the connection leading to a significant increase in both stiffness in service and bearing capacity. The connections made without resin evidenced an almost equal stiffness in service, so that they have equal efficiency in terms of deformability. Headed dowels showed a better anchorage to the thin concrete slab than those without head.
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