What is Glulam Wood?

Posted May 27, 2022

what is glulam wood

What is Glulam wood? It is structurally engineered wood with high tensile strength, low thermal expansion and contraction, and a high degree of resistance to chemicals and moisture. In addition, Glulam is able to be folded to make complex shapes. Fire resistance is another major benefit. Unlike steel and other unprotected materials, Glulam is less likely to burn, since it has a low humidity level. Because of these properties, Glulam structures also require less joints and require fewer joints than traditional materials.

Glulam wood is a structural engineered wood

Glulam wood is a structurally engineered wood that is highly durable. It is capable of forming complex shapes like arches and curves in beams and columns. It can be made from many different wood species, though pine is the most common. It can span large areas without any intermediate supports and has a relatively low moisture content. This allows glulam to be more affordable than steel and is used for a wide range of architectural applications.

Glulam wood is an environmentally friendly product that is often locally grown and has a warm appearance. While glulam wood has its benefits, there are also some drawbacks. The material may split if not adhered properly to the framework, and there are potential hazards that could arise. However, with the right materials, delamination has largely been minimized. Structural engineers can offer a wide range of solutions to avoid this problem.

Glulam is manufactured by a face lamination process, which combines a series of laminate layers. In glulam construction, individual lams are glued together using a thermosetting adhesive. The process makes large structural members from many smaller sawn pieces. Its high-quality lumber provides strength against bending loads. It is also resistant to horizontal shear stresses. It is easy to make large structural members from many smaller pieces.

Glulam is widely used in public buildings. Its structural qualities enable large spans without intermediate support elements. The exposed wood also highlights the beauty of the wood. The structural wood also combines well with hybrid assemblies. The APA trademark is recognized by all major model building codes. For more information, read the Glulam Product Guide, Form X440. It describes glulam and outlines its wide range of applications.

Glulam is a structural engineered wood. It consists of individual pieces of dimensional lumber that are end-jointed with structural adhesives. Glulam beams and columns are produced with the strongest laminations on the bottom and weakest ones in the lower stress zones. Glulam lumber meets the CSA guidelines and has quality control certification through the APA-EWS program.

It has a high tensile stress

Glulam wood has a high level of tensile strength, making it suitable for high-stress environments. The structural benefits of glulam include increased strength and stiffness. However, glulam wood’s tensile stress also makes it susceptible to buckling and cracking. The failure character of glulam is also important, as it determines its ductility.

Glulam is made from sawn logs, which are generally 2-4 m long. The manufacturing process involves face and edge lamination. The result is a deep section with horizontal and vertical members. The high tensile stress of glulam makes it ideal for large structural members. There are several advantages of glulam over conventional timber. These advantages make it a preferred material for high-stress applications.

The mechanical strength of Glulam wood varies with the loading direction and the fiber orientation. Its ratio between highest and lowest strengths varies from five to fifty. The highest to lowest strengths are generally higher for compression in the fiber direction compared to tension in the cross fiber direction. For example, when a load is applied along the fibers, tensile strength is typically two to three times higher than compression strength. When the load is applied at 25 degrees from the fiber direction, no significant difference exists between tension and compression strength.

Glulam timber can span great distances. Glulam construction timber can be easily manufactured in almost any shape and size. Glulam also has good fire resistance, and it is easy to shape and cut with basic hand and mechanical tools. Unlike other construction materials, glulam is lightweight and can be easily worked with hand tools and mechanical equipment. A skilled structural engineer can create beautiful structures out of it.

It reduces thermal expansion and contraction

Glulam wood is a structurally superior material that minimizes the effects of thermal expansion and contraction. The coefficient of thermal expansion has been determined for both glulam and LVL timber using three-dimensional hygroscopic analysis. These two types of wood exhibit significant differences in their hygroscopic behavior, with glulam showing a significant decrease in both.

Glulam wood is composed of multiple layers of thin, adhesive-covered veneers with a water-resistant phenolic resin. Compared to plywood, glulam wood reduces thermal expansion and contraction. Its laminated wood is resistant to moisture-related damage, and it can span large spaces without intermediate supports. Glulam is lightweight and easy to install. Glulam also promotes responsible use of forest resources, as most manufacturers source their wood from reforested forests.

It promotes better use of forest resources

Glulam is an ideal material for building and construction projects, owing to its excellent aesthetic and mechanical qualities. The wood slats make glulam more stable and homogenous than solid lumber. Its construction process combines two traditional methods of woodworking: lamination and charring. The wood charring process delays the combustion process, which reduces oxygen consumption.

Glulam wood construction is strong, allowing it to support tall buildings. The strength-to-weight ratio of wood is comparable to steel and concrete. This lightweight material is also fire-resistant, allowing for the construction of tall wood structures. Additionally, mass timber construction materials are economical and environmentally friendly. A common advantage of CLT and glulam panels is that they can be installed quickly.

CORRIM is a global association of fifteen research institutions and organizations. The project measures the carbon input and output of forests and other building materials using Life Cycle Analysis. It concludes that forests are a vital part of a sustainable economy. This paper outlines the key components of a sustainable wood supply chain and discusses the challenges in the future bioeconomy. It also provides guidelines for the sustainable use of wood.