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Author : Douglas R. Rammer
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Shear Strength of Glued-laminated Beams written by Douglas R. Rammer and published by . This book was released on 1994 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas R. Rammer
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Shear Strength of Unchecked Solid-sawn Douglas-fir written by Douglas R. Rammer and published by . This book was released on 1996 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas R. Rammer
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (364 download)
Download or read book Experimental Shear Strength of Unchecked Solid-sawn Douglas-fir written by Douglas R. Rammer and published by . This book was released on 1996 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents experimental results of modulus of rupture and shear strength tests on unsplit, green, sawn Douglas-fir lumber. Five different size-matched specimens, ranging from nominal 2-by 4-in (standard 38- by 89-mm) to nominal 4- by 14-in (standard 95-by 343-mm), were tested in third-point bending and five-point beam shear. A total of 120 bending and 160 shear specimens, as well as shear blocks cut from each beam, were tested. Results adjusted to 12 percent moisture content are compared with results from prior research on Douglas-fir glued-laminated timber beams. Statistical methods were used to investigate possible correlations of shear strength to beam size, shear strength to bending strength, and beam shear strength to ASTM shear block strength. The results indicate that (1) a five-point test setup can consistently produce beam shear failures over a wide range of beam sizes, (2) shear strength is dependent on beam shear area, (3) beam shear strength is related to ASTM D143 shear block strength values provided that the re-entrant corner stress-concentration effects are considered, and (4) a low correlation exists between modulus of rupture and shear strength.
Author : Lawrence A. Soltis
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)
Download or read book Shear design of wood beams written by Lawrence A. Soltis and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 558 pages
Book Rating : 4.:/5 (4 download)
Download or read book Research Paper FPL-RP written by and published by . This book was released on 1986 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dali Zhang
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.F/5 ( download)
Download or read book PELPS III, a Microcomputer Price Endogenous Linear Programming System for Economic Modeling written by Dali Zhang and published by . This book was released on 1993 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lawrence A. Soltis
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.X/5 (1 download)
Download or read book Shear design of wood beams written by Lawrence A. Soltis and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 502 pages
Book Rating : 4.:/5 (319 download)
Download or read book National Conference on Wood Transportation Structures written by and published by . This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Strength and Stiffness of Reinforced Yellow-poplar Glued-laminated Beams written by and published by . This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In bridge applications, it is often necessary to minimize the depth of the bridge structure to provide for the required hydraulic opening or reduce the volume of approach fill. For bridges that utilize structural glued-laminated (glulam) timber beams as stringers, reinforcement using thin strips of pultruded E-glass-fiber-reinforced plastic (GFRP) composites may permit reduced depth, because the reinforcement has the potential to increase stiffness and strength. This study is part of an overall effort aimed at evaluating the potential for commercial production of glulam-GFRP beams in current wood laminating plants and a wood adhesive compatible with existing equipment. Twelve Yellow-Poplar glulam GFRP beams were commercially manufactured, and their performance was evaluated. The GFRP panels were bonded to the wood with a resorcinol formaldehyde adhesive to provide the reinforcement. The simplicity of the process used to manufacture the test beams indicates that the commercial production of glulam-GFRP beams is feasible. Increases of 18 percent in stiffness and 26 percent in strength were achieved by adding 3 percent of GFRP by volume. The bending strength values of the beams predicted by the ASTM D3737 procedure correlate well with the experimental values. However, the observed delamination of the reinforcement indicates that improved bonding strength of wood--GFRP interfaces is needed. Results of this study will be useful to manufacturers interested in improving the performance of glulam timber beams.
Author : Erwin L. Schaffer
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (319 download)
Download or read book Strength Validation and Fire Endurance of Glued-laminated Timber Beams written by Erwin L. Schaffer and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A previous paper presented a reliability-based model to predict the strength of glued-laminated timber beams at both room temperature and during fire exposure. This Monte Carlo simulation procedure generates strength and fire endurance (time-to-failure, TTF) data for glued-laminated beams that allow assessment of mean strength and TTF as well as their variability. This paper reports an effort to validate model predictive capability through an independently fabricated set of 21 glued-laminated beams. Based upon the available data for the model input parameters on lumber strength and stiffness, finger-joint strength, and length of laminating lumber between sequential finger joints, the model of beam strength appears acceptable and possibly slightly conservative. Refinements in the beam strength model allow its use for predicting fire endurance. In this case, the fire endurance is measured by the TTF and is defined as the time the beam will support its design load while subjected to fire. The residual strength of the beam is analytically calculated by removing the char layer, plus a finite thickness of weakened wood, from the beam cross section as fire exposure time increases. Employing the input parameters for values of finger-joint strength and lamination grades of Douglas-fir, the fire endurance TTF was analyzed for a 5.12- by 16.50-inch 11-lamination Douglas Fir-Larch beam (24F-V4) carrying full allowable uniform load (47.7 lb/in.). (Three-sided fire exposure was assumed; however, four-sided exposure can also be accommodated.) A simulated random fabrication and analysis of the TTF under fire exposure for 100 beams was performed. The mean TTF was estimated as 35.2 minutes with a coefficient of variation of 13.7 percent. Lateral torsional buckling was never the cause of failure in any of the simulations. The results compared well (within a 65 pct confidence band) with the observations and predictions for timber beams reported by sources in other countries. A simulation for a single glulam beam test in cooperation with the National Forest Products Association was also conducted which predicted the result exactly.
Author :
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ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (3 download)
Download or read book Dividends from Wood Research written by and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lieping Ye
Publisher : Springer Science & Business Media
ISBN 13 : 3642174876
Total Pages : 956 pages
Book Rating : 4.6/5 (421 download)
Download or read book Advances in FRP Composites in Civil Engineering written by Lieping Ye and published by Springer Science & Business Media. This book was released on 2012-02-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Advances in FRP Composites in Civil Engineering" contains the papers presented at the 5th International Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering in 2010, which is an official conference of the International Institute for FRP in Construction (IIFC). The book includes 7 keynote papers which are presented by top professors and engineers in the world and 203 papers covering a wide spectrum of topics. These important papers not only demonstrate the recent advances in the application of FRP composites in civil engineering, but also point to future research endeavors in this exciting area. Researchers and professionals in the field of civil engineering will find this book is exceedingly valuable. Prof. Lieping Ye and Dr. Peng Feng both work at the Department of Civil Engineering, Tsinghua University, China. Qingrui Yue is a Professor at China Metallurgical Group Corporation.
Author : The United States Department of Agriculture
Publisher : Skyhorse Publishing Inc.
ISBN 13 : 1602390576
Total Pages : 481 pages
Book Rating : 4.6/5 (23 download)
Download or read book The Encyclopedia of Wood written by The United States Department of Agriculture and published by Skyhorse Publishing Inc.. This book was released on 2007-05-17 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on adhesive bonding, biodeterioration, control of moisturecontent, preservation, fire safety, specialty treatments, and much...
Author : Michael A. Ritter
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (319 download)
Download or read book Research Accomplishments for Wood Transportation Structures Based on a National Research Needs Assessment written by Michael A. Ritter and published by . This book was released on 1998 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (327 download)
Download or read book General Technical Report FPL. written by and published by . This book was released on 1999 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 856 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995-02 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1168 pages
Book Rating : 4.:/5 (891 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
