Curved Glulam Roof Detail
Can be curved to shape during manufacture.
Curved glulam roof detail. While this is true for solid sawn as well as glued laminated glulam timbers the larger sizes and longer spans made possible with glulam components make the proper detailing of connections even more critical. Curved headers for porches and towers. Glulam uses stress rated seasoned and selected timbers usually radiata pine or douglas fir. Curved glulam is manufactured by bending the laminated boards before they are bonded together with adhesives clamped and cured.
Can manufacture a variety of different types of curved glulams including the standard constant radius curve tudor arches and peak and cambered glulams. Common applications for curved laminated products are. One of the greatest advantages of glulam is that it can be manufactured in a wide variety of sizes. Properties of glulam beams are.
The cross sections were almost 3 m high and 30 cm wide. Glulam s major breakthrough came with the so called reichseisenbahnhalle at the world exhibition in brussels in 1910. Connections are usually made with bolts or plain steel dowels and steel plates. Curved and arched glulams calvert co inc.
The tension allowed for the glued beams was 136 kg cm2 13 6 n mm2. Lightweight one sixth the weight of a reinforced concrete beam two thirds the weight of steel. Glulam arches with tie rods had the considerable wide span of 43 m. Although the vault roof is curved the individual glulam beams are straight.
Optimal roof pitch is 2 12 to 3 12 though other roof pitches are possible. Rigidply rafters can design and create curved structural and non structural members for even the most complex members. Glulam beams are readily produced in curved shapes and are available in a range of species and appearance characteristics to meet varied end use requirements. Glulam beams optimise the structural values of a renewable resource wood.
F p explored two possibilities. We can manufacture most custom curved shapes including s curves side curves parabolic arches double compound curves and tight radius curves with a radius as tight as 2 0. These glulam beams follow the straight roof pitch on their top edge while the bottom forms a radius curve. Double curved beams with simpler steel node connections or straight beams with more complex nodes.
The question was really where to put complexity and where to put simplicity rabagliati says. Easy to install easy to handle and work on site using hand and power tools plus easy erection. Pitched and tapered beams taper from the tangent point to a minimum end depth to provide maximum economy. Have strength properties 18 that of normal timber.
Proper connection details are important to the structural performance and serviceability of any timber framed struc ture.