Download or read book Influence of Butt Joints on Stress Laminated Timber Bridge Decks written by and published by . This book was released on 2010 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Butt Joints on the Flexural Stiffness of Laminated Timber Bridges written by and published by . This book was released on 1990 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prestressed and nailed laminated timber bridge decks are made from laminates which, because of their being usually shorter in length than the deck span, are butt-jointed at regular intervals. In calculating deflections of such decks, itiis usual to ignore the reduction in flexural rigidity of the deck caused by the presence of the butt joint. The effect of butt joints on the flexural rigidity of the laminated deck is studied analytically, and it is shown that the deflections of a deck having such joints may be significantly larger than those of a deck without them. A simple method is presented to account conservatively for the presence of butt joints in the calculation of the deflections of a prestressed laminated timber deck.

Download or read book Effect of Butt Joints on Flexural Properties of Nail Laminated Timber written by Tianying Ma and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nail laminated timber (NLT) is manufactured using dimension lumber laminations, stacked on edges, and fastened with nails, to create large flat structural components that are widely used for constructing timber bridge decks in North America. Butt joints usually exist due to the length limits of lumber, leading to concerns about the decrease of structural performance of NLT. This project was undergone to understand the impact of butt joints on flexural properties of NLT and investigate the methods for reinforcing the NLT containing butt joints. To reach this goal, four-point bending tests were performed on 7 types of 3-layer NLT specimens, 1 without butt joints as reference, 3 with butt joints and 3 with butt joints reinforced with nails. It was found that the effective stiffness (EIeff) and load capacity (Ppeak) of 3-layer NLT specimens with butt joints, in comparison to those without butt joints, could be reduced up to 64% and 71%, respectively. The reduction in EIeff of NLT specimens with a certain 1-in-3 frequency pattern of butt joints was found to be 34%, which proved the applicability of the stiffness reduction factor in current CSA S6 standards. It was found that the nailing reinforcement was an effective approach to recover the EIeff and Ppeak of NLT specimens with a certain 1-in-3 frequency pattern of butt joints by 21% and 38%, respectively. This approach could be used to make NLT with butt joints, but more research is required. Keywords: Effective stiffness, Load capacity, Nail laminated timber, Nailing reinforcement

Download or read book Behavior of Stress laminated Parallel chord Timber Bridge Decks written by A. G. Dimakis and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Construction and Quality Control Guidelines for Stress Laminated Timber Bridge Decks written by J. F. Davalos and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidelines for the design of stress-laminated timber decks have been published by AASHTO, but they do not provide comprehensive information on materials, construction, and inspection. Therefore, this document presents: (1) background information on timber bridge materials and their quality control; (2) a comprehensive step-by-step design procedure based on the 1991 AASHTO Guide Specification; and (3) guidelines for construction, field monitoring, inspection, and maintenance procedures. Potential fabrication problems are discussed, and an inspection checklist is included.

Download or read book Stress laminated Wood Bridge Decks written by Michael G. Oliva and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by Lola E. Hislop and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by James P. Wacker and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by James A. Kainz and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gripped end Effect in Tension Proof Testing of Dimension Lumber written by Angela Marie Terry and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stress Transfer Across Butt joints in Stress laminated Timber Decks written by Lewis Osborne and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by James P. Wacker and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cold Temperature Effects on Stress laminated Timber Bridges written by James P. Wacker and published by . This book was released on 2003 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by Michael A. Ritter and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by Lola E. Hislop and published by . This book was released on 1998 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by James P. Wacker and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Performance of Timber Bridges written by James P. Wacker and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: