Glulam Curved Roof Construction Details

Do not place glulam in direct contact with masonry or concrete.

Glulam curved roof construction details.

Glulam beams with constant cross section and radius for barrel or dome roof profiles. They are commonly used for large curved or arching members to build vaulted roofs domes and even bridges. Avoid moisture entrapment at connections. Connections for glulam beams are typically made with bolts or steel dowels and steel plates.

Inside radius of 20 0 or more allows use of 2 nominal laminations. The tension allowed for the glued beams was 136 kg cm2 13 6 n mm2. Timberlab glulam timber beams are load bearing structural members for roofs floors and other construction situations e g. It is a highly visible form of mass timber in contemporary projects with long spans framing signature designs left exposed to take advantage of wood s natural aesthetic.

Glued laminated timber constitutes an ever increasing percentage of the framing materials used in residential construction. 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. One of the greatest advantages of glulam is that it can be manufactured in a wide variety of sizes. It was shown that for large building structures.

3 1 8 3 1 2 5 1 8 and 6 3 4 inches. Glue laminated timber glulam is a structural engineered wood product commonly used for beams and columns in residential and commercial applications. Glulam arches with tie rods had the considerable wide span of 43 m. In timberlab s unique system each single piece of timber is graded to ensure the design values are met.

In structural terms they tend to be variants on flat roofing using curved timber glulam beams under a plywood covering. Use beam stress combinations e g. Optimal roof pitch is 2 12 to 3 12 though other roof pitches are possible. Curved glulam is manufactured by bending the laminated boards before they are bonded together with adhesives clamped and cured.

Avoid eccentricity in joint details. Avoid the use of details that induce tension perpendicular to grain stresses in a member. Can manufacture a variety of different types of curved glulams including the standard constant radius curve tudor arches and peak and cambered glulams. Glulam uses stress rated seasoned and selected timbers usually radiata pine or douglas fir.

This is a strength value which corresponds well with what is currently applied as design value for glulam. The cross sections were almost 3 m high and 30 cm wide. Curved roof shapes are currently the height of fashion at least on upmarket builds. Glulam construction offers superior strength and stiffness over dimensional lumber and pound for pound it is stronger than steel.

Much of this growth is attributed to the fact that glulam beams are available from building material dealers and distributors in stock sizes typical widths.