Z E M C H 2 0 1 2 I n t e r n a t i o n a l C o n f e r e n c e
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the seismic action is dissipated in the small-allowed movement of the semi-rigid joint.
This is possible only in timber structure, without the introduction of complex oscillating
systems, necessary for steel or reinforced concrete structures. Last, but not at least, the
simplicity of this constructive solution guarantees short construction time that means
lower costs with more safety. For this study a framed system totally designed in Italy and
produced with industrial technologies has been tested. Such kind of building system is
known as “dry system”, where all joints are mechanic. Framed systems, in fact, have
also components that better adapt to different building shape, even with industrially
produced components. Pillars have a square section of 16x16 cm2 and they are
connected to the basement with steel elements. Main and secondary beam are in glulam.
Figure 3: The anti-seismic structure (left side).
They have rectangular cross-section of 16 cm of basis and a variable height between 16
and 24 cm; they are bound up with the pillars in support and joined to them with screws
or rectangular tenons. The roof structure is made in glulam elements with a section of
8x24 cm2, placed with a step of 60 cm, supported by the main beams and bound to
them. The finishing is made of wooden matchboards. The horizontal wind-bracing is
made with a perforated steel tape nailed to the structure. The wall wind-bracing is
entrusted to OSB panels with variable width, depending on the wheelbase of the pillars.
Innovative envelope to save energy
Particular attention was paid to the constructive solutions for energy saving, especially
for what concerns the minimization of thermal bridges, the main agent that usually
determines the energy losses.
Figure 4: The external layer in cork (left side), the panel stratification (right side).
