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Glued laminated timber
 
 
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Glued laminated timber, also called Gluelam or Glulam, is a type of structural timber
Timber

Timber may refer to:* Lumber, i.e. wood materials* Timber, Oregon, an unincorporated community in the U.S. state of Oregon* Timber , a 1984 arcade game by Bally Midway...
 product composed of several layers of dimensioned lumber
Lumber

Lumber or timber is wood in any of its stages from logging through readiness for use as structural material for construction, or wood pulp for paper production....
 glued
Glue

This is a list of various types of adhesive. Historically, the term "glue" only referred to protein colloids prepared from animal flesh. The meaning has been extended to refer to any fluid adhesive....
 together.

By laminating several smaller pieces of wood
Wood

Wood is an organic material; in the strict sense wood is produced as secondary xylem in the stems of woody plants, notably trees but also shrubs, etc....
, a single large, strong, structural member can be manufactured from smaller lumber. These structural members are used as vertical column
Column

File:National Capitol Columns - Washington, D.C..jpgA column in structural engineering is a vertical structural element that transmits, through physical compression, the weight of the structure above to other structural elements below....
s or horizontal beam
Beam (structure)

A beam is a List of structural elements that is capable of withstanding Structural load primarily by resisting bending. The bending force induced into the material of the beam as a result of the external loads, own weight and external reactions to these loads is called a bending moment....
s, as well as curved, arching shapes.






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Glued laminated timber, also called Gluelam or Glulam, is a type of structural timber
Timber

Timber may refer to:* Lumber, i.e. wood materials* Timber, Oregon, an unincorporated community in the U.S. state of Oregon* Timber , a 1984 arcade game by Bally Midway...
 product composed of several layers of dimensioned lumber
Lumber

Lumber or timber is wood in any of its stages from logging through readiness for use as structural material for construction, or wood pulp for paper production....
 glued
Glue

This is a list of various types of adhesive. Historically, the term "glue" only referred to protein colloids prepared from animal flesh. The meaning has been extended to refer to any fluid adhesive....
 together.

By laminating several smaller pieces of wood
Wood

Wood is an organic material; in the strict sense wood is produced as secondary xylem in the stems of woody plants, notably trees but also shrubs, etc....
, a single large, strong, structural member can be manufactured from smaller lumber. These structural members are used as vertical column
Column

File:National Capitol Columns - Washington, D.C..jpgA column in structural engineering is a vertical structural element that transmits, through physical compression, the weight of the structure above to other structural elements below....
s or horizontal beam
Beam (structure)

A beam is a List of structural elements that is capable of withstanding Structural load primarily by resisting bending. The bending force induced into the material of the beam as a result of the external loads, own weight and external reactions to these loads is called a bending moment....
s, as well as curved, arching shapes. Connections are usually made with bolts and steel plates
Tie (engineering)

A tie is any strong component designed to keep two objects closely linked together.Among the most common of these is the Tropical cyclone or seismic tie used in the Framing of wooden structures....
.

Glued laminated timber, like other engineered wood
Engineered wood

Engineered wood, also called composite wood, man-made wood or manufactured wood, includes a range of derivative wood products which are manufactured by binding together the strands, particles, wood fibre, or wood veneer of wood, together with adhesives, to form composite materials....
 products, represent an efficient use of available timber. With an increased demand for lumber
Lumber

Lumber or timber is wood in any of its stages from logging through readiness for use as structural material for construction, or wood pulp for paper production....
 worldwide, the amount of solid timber available has steadily declined. Gluelam structural members thus make use of smaller and less desirable dimensions of timber, yet are engineered to be stronger than similarly sized members comprised of solid wood. Gluelam structural members are also an environmentally friendly alternative to concrete
Reinforced concrete

Reinforced concrete is concrete in which steel reinforcement bars or fibers have been incorporated to strengthen a material that would otherwise be brittle....
 and steel
Structural steel

Structural steel is steel construction material, a Profile , formed with a specific shape or cross section and certain standards of Chemistry and strength....
 members as they have a lower embodied energy
Embodied energy

Embodied energy refers to the quantity of energy required to manufacture, and supply to the point of use, a product, material or service. .Traditionally considered, embodied energy is an accounting methodology which aims to find the sum total of the energy necessary - from the raw material extraction, to transport, manufacturing, assembly,...
 in comparison.

The first use of glued laminated timber was in Germany in 1890 by Otto Hetzer. The technology arrived in North America in 1934 when Max Hanisch, Sr., who had worked with Hetzer at the turn of the century, formed a firm in Peshtigo, Wisconsin to manufacture structural glued laminated timber.

See also

  • Engineered wood
    Engineered wood

    Engineered wood, also called composite wood, man-made wood or manufactured wood, includes a range of derivative wood products which are manufactured by binding together the strands, particles, wood fibre, or wood veneer of wood, together with adhesives, to form composite materials....
  • Fiberboard
    Fiberboard

    Fiberboard is a type of engineered wood product that is made out of wood fibers. Types of fiberboard include particle board, medium-density fiberboard, and hardboard....
  • Hardboard
    Hardboard

    Hardboard, also called high-density fiberboard, is a type of fiberboard, which is an engineered wood product. It is similar to particleboard and medium-density fiberboard, but is density and much stronger and harder because it is made out of exploded wood fibers that have been highly compressed....
  • Masonite
    Masonite

    Masonite is a type of hardboard invented by William H. Mason....
  • Medium-density fiberboard
  • Oriented strand board
    Oriented strand board

    Oriented strand board, or OSB, or waferboard, or Sterling board or SmartPly is an engineered wood product formed by layering strands of wood in specific orientations....
  • Particle board
    Particle board

    Particle board, or particleboard, is an engineered wood product manufactured from wood particles, such as wood chips, sawmill shavings, or even saw dust, and a synthetic resin or other suitable binder, which is pressed and extrusion....
  • Plywood
    Plywood

    Sorry, no overview for this topic
  • Pressed wood
    Pressed wood

    Pressed wood is any engineered wood building and furniture construction material made from wood veneers, particles, or wood fibre bonded together with an adhesive under heat and pressure....
  • Laminated veneer lumber
    Laminated veneer lumber

    Laminated veneer lumber is an engineered wood product that uses multiple layers of thin wood assembled with adhesives. It offers several advantages over typical milled lumber: it is stronger, straighter, and more uniform....


External links


  • - An article (Printed in , Sep. 2006) by Gary W. Gray P.E. and Paul C. Gilham P.E.