The principles of glulam construction are believed to date back to the 1860s, in the assembly room of
The … 詳細

The manufacturing of glulam is typically broken down into four steps: drying and grading the lumber, joining the lumber to form longer laminations, gluing the layers, and finishing and fabrication. The lumber used to produce … 詳細

When glued laminated timber was introduced as a building material in the early twentieth century, casein glues (which are waterproof but have lower shear strength) were widely used. Joints with casein glues had … 詳細

Advantages to using glulam in construction:
• Size and shape - By laminating a number of smaller pieces of lumber into a single large structural member, the dimensions of glulam members … 詳細

• Material cost - Glulam may be more costly than concrete at high axial loads, though this depends on location and availability/ abundance of either material. While glulam beams may be cheaper than HEA steel beams in some c… 詳細

Large stadium roofs are a common application for wide-span glulam beams. Advantages are the light weight of the material and the ability to furnish long lengths and large cross-sections. Prefabrication is i… 詳細

In 2005, researchers at Lund University, Sweden, found a number of failures of glulam structures in Scandinavian countries. They concluded that construction faults or design errors were responsible. In Ja… 詳細