Experimental Assessment of Wood Trusses with Square-end Webs PDF Download
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Author: Ronald W. Wolfe
Publisher:
ISBN:
Category : Joints (Engineering)
Languages : en
Pages : 24
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Book Description
Author: Ronald W. Wolfe
Publisher:
ISBN:
Category : Joints (Engineering)
Languages : en
Pages : 24
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Book Description
Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 540
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Book Description
Author: John J. Janowiak
Publisher:
ISBN:
Category : Laminated wood
Languages : en
Pages : 394
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Book Description
The feasibility of utilizing cant-sawn hardwood lumber, which would not usually be desired for furniture manufacture, was studied for the manufacture of structural glued-laminated (glulam) timber. Two red maple beam combinations were evaluated: (1) a glulam combination designed with E-rated lumber in 25 percent of the outer laminations (top and bottom) and No. 3 grade lumber in 50 percent of the center laminations and (2) a wide-width glulam combination with laminations made from nominal 2- by 4- and 2- by 6-in. No. 2 grade lumber laid edge-to-edge having staggered end joints (termed 2 by 4/2 by 6 glulam combination). Test results of 42 red maple glulam beams showed that it was feasible to develop structural glulam timber from cant-sawn lumber. The glulam combinations made from E-rated lumber exceeded the target design bending stress of 2,400 lb/in2 and met the target modulus of elasticity (MOE) of 1.8 Ã 106 lb/in2. In addition, the 2 by 4/2 by 6 glulam combination exceeded published design stresses for vertically laminated bending strength, MOE in both the horizontally and vertically laminated orientations, and horizontal shear stress in the vertically laminated orientation. Based on the results of the 2 by 4/2 by 6 glulam combination, it was determined that edge gluing the laminations to form wide-width lumber is not required to achieve targeted strength and stiffness levels. Data analysis showed that ASTM D3737 procedures developed for softwood species accurately predict beam stiffness and provide conservative bending and horizontal shear strength estimates for red maple glulam beams. Also, it was shown that results from ASTM D143 shear-block tests could be used to accurately predict horizontal shear strength of 2 by 4 and 2 by 6 red maple glulam beams.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 940
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Author: Albert L. Hall
Publisher:
ISBN:
Category :
Languages : en
Pages : 338
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 2312
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 18
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Book Description
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 1166
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 602
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Book Description
Author: Achim Menges
Publisher: Routledge
ISBN: 1317392345
Category : Architecture
Languages : en
Pages : 259
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Book Description
In light of environmental challenges architecture is facing, wood is no longer regarded as outmoded, nostalgic, and rooted in the past, but increasingly recognized as one of the most promising building materials for the future. Recent years have seen unprecedented innovation of new technologies for advancing wood architecture. Advancing Wood Architecture offers a comprehensive overview of the new architectural possibilities that are enabled by cutting-edge computational technologies in wood construction. It provides both an overarching architectural understanding and in-depth technological information through built projects and the works of four leading design research groups in Europe. The projects presented include large scale, permanent buildings such as the ETH Arch-Tec Lab Building in Zurich, the Landesgartenschau Exhibition Hall near Stuttgart and the Boiler House in Hooke Park, UK, as well as, built research prototypes investigating additive robotic fabrication, folded plate structures and meteorosensitive building skins. Illustrated in full colour, the book showcases the latest technological developments in design computation, simulation and digital fabrication together with an architectural, engineering and manufacturing perspective, offering an outlook towards novel spatial and constructional opportunities of a material with unrivalled ecological virtues.
