Cross laminated timber has several applications in walls, roofs, and ceilings. Clt handbook canadian edition research library think. Cross laminated timber was first developed and used in germany and austria in the 1990s. The future of timber construction clt cross laminated. Bonding mixed species for advanced biomaterials 8 2. A clt expert clears up several common misconceptions and myths surrounding the use of wood as a building material. However, formatting rules can vary widely between applications and fields of interest or study.
Cross laminated timber handbook related to key issues such as structural design. Download clt handbook or read online books in pdf, epub, tuebl, and mobi format. To learn more, check out the clt handbook published by the american wood council awc, the united states u. Cross laminated timber an introduction to lowimpact building materials andy sutton and daniel black, bre pete walker, university of bath this information paper provides a broad view of the benefits and limitations of cross laminated timber clt for those considering its use in construction projects. It is a potentially costcompetitive woodbased solution that complements the existing light frame and heavy timber options, and is a. Klh panels which can be used for all elements of a buildings superstructure are produced from kilndried finger jointed sprucefur. Crosslaminated timber clt is a largescale, prefabricated, solid engineered wood panel. The aim of the clt handbook is to help construction planners to design and plan structures using panels of cross laminated timber. Crosslaminated timber clt a subcategory of engineered wood is a wood panel product made from gluing together layers of solidsawn lumber, i. Clt handbook canadian edition research library think wood. Structural design of cross laminated timber elements. As its production has increased over the years since 2005, it has become widely used lowenstein, 2011.
Cross laminated timber structural design basic design and engineering principles according to eurocode. Lightweight yet very strong, with superior acoustic, fire, seismic, and thermal performance, clt is also fast and easy to install, generating almost no waste onsite. Crosslaminated timber construction an introduction. Crosslaminated timber an introduction to lowimpact building materials andy sutton and daniel black, bre pete walker, university of bath this information paper provides a broad view of the benefits and limitations of crosslaminated timber clt for those considering its use in construction projects. New opportunities for taller multifamily buildings the tall wood movement has created new opportunities for multifamily builders.
Each layer of boards is usually oriented perpendicular to adjacent layers and glued on the wide faces of each board, usually in a symmetric way so that the outer. Please complete the form to access individual pdf chapters and the complete u. Cross laminated timber clt, also known as xlam, has enabled much innovation in the use of wood in building construction. The future of timber construction clt cross laminated timber a study about changes, trends and technologies of tomorrow photo.
During the 2000s, it was much widely used in europe. Clt crosslaminated timber application wood building systems language english research status complete summary the clt handbook provides vital how to information on clt for the design and construction community, and is a great source of information for regulatory authorities, fire services and others. We also believe that clt will become the backbone for future generations of highperformance, low carbon buildings. Clt cross laminated timber application wood building systems language english research status complete summary the clt handbook provides vital how to information on clt for the design and construction community, and is a great source of information for regulatory authorities, fire services and others. An innovative building material takes hold in oregon. Mass plywood panel product development testing 8 4. Spectacular and economical projects are possible due to the. Crosslaminated timber clt, a new generation of engineered wood product developed initially in europe, has been gaining increased popularity in residential and nonresidential applications in several countries. Clt offers design flexibility and low environmental impacts. Pdf lateral design of crosslaminated timber buildings 4. For the clt handbook, we have decided to use the term cross laminated timber and the abbreviation clt. A pdf of the handbook is available on fpinnovations website.
Clt handbook download ebook pdf, epub, tuebl, mobi. The handbook is based on the original canadian edition of the clt handbook. To support a larger use of clt, the 2019 edition of the clt handbook has been completely revised and improved based on new research performed by fpinnovations and partners to reflect changes made since the 2011 edition in recent canadian codes and standards. Crosslaminated timber is a solid, multilayered timber construction material. To support a larger use of clt, the 2019 edition of the clt handbook has. Cross laminated timber clt structural composite lumber scl laminated veneer lumber lvl parallel strand lumber psl. Printed copies are available for a fee on amazons printondemand platform beginning march 2, 2020. Fire resistance of unprotected crosslaminated timber wall.
It is essentially mass timber plates made from smaller framing lumber laminated crosswise on their wide. Abstract fire hazards are one of the major concerns for wooden constructions. This article provides a more detailed introduction to the applications and use of clt as a structural timber product. Ansiapa prg 320 2012 standard for performancerated crosslaminated timber fp innovations, us clt crosslaminated timber handbook 20 asce 710 minimum design loads for buildings and other structures aisc 36010 specification for structural steel buildings apa product report prl314 crosslam by structurlam products lp. Primarily as a wall, ceiling and roof panel in homes and other buildings. The clt handbook is the result of a collaboration between swedish suppliers of cross laminated timber, clt, and the industry body swedish wood.
Us edition of clt handbook now available proud green home. Other resources, such as videos and images, may be accessed without log in. This book is a study of the 100 of the most significant buildings constructed from clt in the united kingdom over the past 15 years. To support a larger use of clt, the 2019 edition of the clt handbook has been completely revised and improved based on new research performed by fpinnovations and partners to reflect changes made since the 2011 edition in recent canadian codes. However, clt can be used in all types of combustible constructioni. Cross laminated timber, crosslam, clt, xlam, bsp, mass timber and multiply are common names for sheets, panels, posts and beams made of glued boards or planks layered alternately at rightangles.
Seunghyunhong1, lech muszynski1, rakeshgupta1, brent pickett2 oregon state university 1department of wood science and engineering, 2western fire centerinc. Chapter 5 connections connections in crosslaminated. Fire resistance of unprotected crosslaminated timber wall assemblies made in the u. Klh is kreuz lagen holz which translated into english means cross laminated solid timber klh massivholz founded in 1997, is the leading manufacturer of crosslaminated timber panels for the uk market. Cross laminated timber has been used in many projects in b. Combining the clt bbs 125 system format with the largeformat panel clt bbs xl enables builders and designers to work even more flexibly with cross laminated timber clt bbs and therefore making targeted use of each individual format. This article provides a stateoftheart report on some selected topics related to clt, in particular production and. Chapter 5 connections connections in crosslaminated timber. The clt handbook is part of swedish woods investment in handbooks for building in wood. The orthogonal, laminar structure allows its application as a fullsize wall and floor element as well as a linear timber member, able to bear loads in and outofplane.
Developed for building professionals, the publication provides technical information and illustrates clt applications adapted. Mass timber in north america american wood council. Klh is k reuz l agen h olz which translated into english means cross laminated solid timber. Publication details owner and publisher proholz austria working group of the austrian timber.
Recognize notable mass timber structures around the. Crosslaminated timber is a wood panel consisting of multiple layers of lumber oriented at right angles to one another and then bonded together andrew crampton is a practicing planner in the portland metro area and a graduate student at portland state university. Lightweight and easy to use, nordic xlam has a smaller ecological footprint than that of other building materials, making it the ideal choice for sustainable and environmentally responsible construction. Thanks to its excellent physical and mechanical properties, this laminar timber material has both exceptional thermal insulation properties and can also dissipate loads in several directions. Crosslaminated timber was first developed and used in germany and austria in the 1990s. We believe that crosslaminated timber clt will fundamentally change the way we design, manufacture and build. Crosslaminated timber has several applications in walls, roofs, and ceilings. Cross laminated timber clt a subcategory of engineered wood is a wood panel product made from gluing together layers of solidsawn lumber, i. This book contains technical information and illustrates clt applications adapted to current codes and standards. Cross laminated timber is a sustainable alternative to steel and concrete.
Under the 2015 ibc, clt at the required size is specifically stated for prescribed use in type iv buildings. The future of timber construction clt cross laminated timber. Prefabricated rib panels by stora enso make the perfect choice for longspan structures and large open areas featuring unobstructed, columnfree spaces. Crosslaminated timber clt guidebook crosslaminated timber is a prefabricated, engineered wood building material with unique and often superior building, aesthetic, environmental. We offer rib panels made from cross laminated timber clt and glue laminated timber. Gaining ground in europe, cross laminated timber construction is finding its way to the united states. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. Discuss the advantages of cross laminated timber over other building. Crosslaminatedtimber housing offers future of low carbon. Mass timber products from underutilized species in northwestern ontario 9 5. Omar espinoza, a, vladimir rodriguez trujillo, b maria fernanda laguarda mallo, a and urs buehlmann c in the 20 years since its invention in europe, cross laminated timber clt has become a widely used construction material in parts of the old continent and has started to attract global attention.
Klh panels which can be used for all elements of a buildings superstructure are produced from kilndried finger jointed sprucefur planks which are sorted and cut into sheets. Cross laminated timber clt, a new generation of engineered wood product developed initially in europe, has been gaining increased popularity in residential and nonresidential applications in several countries. Dimensioning clt with stora ensos clt design software 26. Structural clt floor and roof construction presenter. The benefits of cross laminated timber clt are clear. The final part investigates advances in wood composites and looks at the preservation and modification of wood composites, environmental impacts and legislative. While eightstory cross laminated timber buildings exist in europe, a recent study conducted on behalf of the canadian. Chapter 1 clt introduction to crosslaminated timber. Department of agriculture, forest service, forest products laboratory, binational. The american wood council and fpinnovations have collaborated in the creation of the first edition of the us cross laminated timber handbook for building professionals. Not only is dalston works believed to use more crosslaminated timber clt than any other building in the world, at 33. Consider the structural design properties of clt relevant to floor and roof. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. Resource library apa the engineered wood association.
Jan 19, 2016 cross laminated timber clt has become a wellknown engineered timber product of global interest. The thickness of the product can be changed as per the requirement of the application. Cross laminated timber clt was initially developed in europe as an alternative to stone, masonry and concrete construction. Crosslam clt, as we call our proprietary clt panel, is a revolutionary product. Research in progress 201819 4 table of contents mechanical properties 8 1.
The benefits of using solid wood products and structural elements in construction are increasingly recognized in canada and elsewhere. Cecertificate hasslacher cross laminated timber eta120281 en. As a result, clt has the potential to change how wood is used in nonresidential and multifamily construction. We offer rib panels made from cross laminated timber clt and glue laminated timber glulam by stora enso. Numerous and frequentlyupdated resource results are available from this search. Clt cross laminated timber application wood building systems language english research status complete summary the clt handbook provides vital how to information on clt for the design and construction community, and is a great source of information for regulatory authorities, fire. Registration allows the download of apa publications in pdf format by entering your username email address and password. Introduction to mass timber construction paul coats, pe, cbo southeast regional manager. This chapter will introduce clt by tracing its background in research. Unified facilities guide specifications references are in agreement with umrl dated january 2020 section table of contents division 06 wood, plastics, and composites section 06 17 19 cross laminated timber 1116 part 1 general 1. Each layer of boards is usually oriented perpendicular to adjacent layers and glued on the wide faces of each board, usually in a symmetric way so that the outer layers have the same orientation. Engineering performance characteristics of hardwood cross laminated timber 8 3. Identify code and standard updates relevant to clt and other mass timber elements 3. Nov 01, 2017 work has been completed on a 10storey carbonneutral apartment complex in londons dalston, which architecture firm waugh thistleton claims is the worlds largest cross laminated timber building.
Su ny 2002 novel technologies for subterranean termite. Cross laminated timber is a wood panel consisting of multiple layers of lumber oriented at right angles to one another and then bonded together andrew crampton is a practicing planner in the portland metro area and a graduate student at portland state university. Katerras goal is to develop worldclass advanced building materials and systems. Central to tall wood is the development of nextgeneration wood such as cross laminated timber clt, nail laminated timber nlt, dowel laminated timber dlt and glue laminated timber glulam. Cross laminated timber clt has become a wellknown engineered timber product of global interest. Wood council concluded that clt is feasible for 12 stories or more. Cross laminated timber clt structural design issuu.
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