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Author : John M. Drozdek
Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (89 download)
Download or read book System Effects in Metal Plate Connected Wood Truss Assemblies written by John M. Drozdek and published by . This book was released on 1999 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Da-Ren Dung
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (434 download)
Download or read book A Practical Method to Analyze the System Effects of a Metal-plate-connected Wood Truss Assembly written by Da-Ren Dung and published by . This book was released on 1999 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a practical method to model an actual Metal-Plate- Connected (MPC) roof truss assembly using a commercial program, SAP2000, to investigate its system performance. Truss assembly modeling was examined because the conventional single truss design method ignores system effects, such as variability of modulus of elasticity (MOE), interaction of sub-assemblies, realistic boundary conditions, etc. Two types of semi-rigid MPC joint models, linear spring (LS) joint model and a truss plate manufacturer's (TPM's) joint model, were used for the truss and truss assembly models. To verify the truss models using the LS joint model, the predicted deflections of individual trusses and the load sharing of nine-truss roof assembly models were compared with experimental results from the literature. Fourteen individual trusses (the components of the actual roof truss assembly) using TPM's joint models were also verified by comparing the Combined Stress Index (CSI) values with the CSI values provided by the TPM. Both design and one set of random material properties were used in the analysis of the actual roof truss assembly model. The predictions for truss models using the LS joint model for truss deflections and load sharing effect agree with the experimental results. The CSI values for individual trusses with the TPM's joint model matched the CSI values provided by the TPM. The load distribution in an actual roof truss assembly is strongly influenced by the interaction of sub-assemblies and by the boundary conditions. In the truss assembly, the prediction of location and value of maximum CSI are different from those for the single truss. The truss with the maximum CSI value of 0.91 among fourteen individual truss types decreased to 0.52 and 0.51 when this truss is in the assembly with design and random material properties, respectively. Moreover, the truss with a maximum CSI of 1.03 in the assembly (with design properties) had a CSI value of only 0.95 as an individual truss. Although the CSI of one truss type increased over 1.0 in the assembly, the CSI of most other trusses decreased (by as much as 43%). So, the behavior of a single truss is different when the truss is in the assembly. The benefits of using an assembly model compared to the conventional truss design method are in providing increased safety through improved analysis and in a potential reduction in construction cost.
Download or read book Stability and Reliability Analysis of Metal Plate Connected Wood Truss Assemblies written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a study on the stability capacity and lateral bracing force of wood beam-columns and metal plate connected (MPC) wood truss assemblies. A user-friendly computer program, SATA, was developed based on the finite element method (FEM). The program can be used to perform three-dimensional nonlinear structural analyses by using the Newton-Raphson and arc-length methods. The Monte Carlo simulation and response surface methods have also been incorporated into the program for the purpose of reliability analyses. Experimental studies were conducted to provide input parameters and verification for the developed software. Material property tests were performed to consider a variety of materials. Biaxial eccentric compression tests of wood beam-columns and full-scale tests of MPC wood truss assemblies were also carried out to study the critical buckling load and lateral bracing force. The program predictions were in good agreement with the test results. A reliability analysis was conducted for a simplified MPC wood truss assembly using the developed program. The effect of the variation of the structural behaviour and external loads on the critical buckling load of the truss assembly was studied. The adequacy of the 2% rule-of-thumb was also studied. This research bridges the knowledge gap that currently exists in the understanding and design of MPC wood truss assemblies and their lateral bracing systems. The test database and the output of the developed program contributes to the development of more efficient design methods for MPC wood truss assemblies and other structures where buckling failure is of concern.
Author : Robert H. White
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)
Download or read book Fire Endurance Model for a Metal-plate-connected Wood Truss written by Robert H. White and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kelly Harman
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (144 download)
Download or read book Structural Integrity of Lightweight Wood Truss Assemblies Exposed to Fire written by Kelly Harman and published by . This book was released on 2006 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lightweight wood construction has become more and more popular in residential floor and roof design. It is desirable for its versatility, low cost, and ease of construction. This brings many concerns to the firefighting community. Lightweight construction does not have the fire resistance that typical solid joist and rafter construction offer. Many firefighters have been injured and others have lost their lives due to early undetectable collapse of these structures. Twelve tests were conducted to analyze the heat transfer of lightweight wood trusses connected with metal truss plates. Char depths and temperature readings are measured and evaluated. Manufacturing tolerances were also introduced to evaluate the charring effects. This paper also summarizes previous research on the structural performance of wood elements and assemblies when exposed to fire as well as methodologies and algorithms available to predict their behavior. Difficulties in researching wood are presented along with variations in the charring rate of wood.
Author : Tamilselvan Samiappan
Publisher :
ISBN 13 :
Total Pages : 422 pages
Book Rating : 4.:/5 (89 download)
Download or read book Computing Instability Effects and Performance of End-grain Nailed Spacer Blocks in Wood Truss Assemblies written by Tamilselvan Samiappan and published by . This book was released on 2005 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy G. La Bissoniere
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (891 download)
Download or read book Assembly Effects on Trussed Roof Systems written by Timothy G. La Bissoniere and published by . This book was released on 1988 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 556 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 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States-Japan Cooperative Program in Natural Resources. Panel on Wind and Seismic Effects. Joint Meeting
Publisher :
ISBN 13 :
Total Pages : 624 pages
Book Rating : 4.:/5 (318 download)
Download or read book Wind and Seismic Effects written by United States-Japan Cooperative Program in Natural Resources. Panel on Wind and Seismic Effects. Joint Meeting and published by . This book was released on 1992 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert L. Hall
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Effects of Fabrication Defects on the Structural Performance of Metal Plate Connected Wood Trusses written by Albert L. Hall and published by . This book was released on 2002 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 582 pages
Book Rating : 4.F/5 ( download)
Download or read book Thermal Degradation of Fire-retardant-treated Plywood written by and published by . This book was released on 1991 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : ScholarlyEditions
ISBN 13 : 1464963967
Total Pages : 2985 pages
Book Rating : 4.4/5 (649 download)
Download or read book Issues in Structural and Materials Engineering: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 2985 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Structural and Materials Engineering: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Structural and Materials Engineering. The editors have built Issues in Structural and Materials Engineering: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Structural and Materials Engineering in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Structural and Materials Engineering: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author : Ronald W. Wolfe
Publisher :
ISBN 13 :
Total Pages : 770 pages
Book Rating : 4.F/5 ( download)
Download or read book Strength and Stiffness of Light-frame Sloped Trusses written by Ronald W. Wolfe and published by . This book was released on 1986 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Deepak Kumar Shrestha
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.:/5 (89 download)
Download or read book Fire Endurance Modeling of Metal-plate Connected Wood Trusses written by Deepak Kumar Shrestha and published by . This book was released on 1992 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald W. Wolfe
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (319 download)
Download or read book Structural Performance of Light-frame Roof Assemblies written by Ronald W. Wolfe and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald W. Wolfe
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (319 download)
Download or read book Structural Performance of Light-frame Roof Assemblies written by Ronald W. Wolfe and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhong Li
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.:/5 (382 download)
Download or read book A Practical Approach to Model the Behavior of a Metal-plate-connected Wood Truss System written by Zhong Li and published by . This book was released on 1996 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-plate-connected (MPC) trusses have traditionally been designed based on a tributary load distribution and a simplified truss model. This design method ignores the load-sharing and composite action in MPC roof truss systems, the semi-rigidity of MPC joints, and joint eccentricity. The main objective of this study was to provide a practical approach to model MPC trusses and roof truss systems by using a commercial program and investigate the system performance of MPC roof trusses with plywood sheathing. The model takes into account the complexities of system behavior from load-sharing and composite action, the semi-rigidity of the MPC joints, and joint eccentricity. Model verification was conducted by comparing the predicted deflections, member internal forces, truss strengths, and load-sharing of four nine-truss roof systems with experimental results from the literature. A strength simulation program for trusses and truss systems was also developed. The correlated lumber strength properties were generated using a multivariate normal approach to preserve the correlation between properties. Failure modes examined in this project included wood member failure and joint failure. Joint failure criteria were based on the experimental strengths of heel joints, bottom-chord-tension-splice joints and web at the bottom chord joints from the literature. This study provided a practical approach to model MPC trusses and truss systems. Predictions for truss deflections, strengths, member internal forces, and load-sharing agree with the experimental results. Through strength simulations, it was found that the predominant failure mode for simulated 3:12 and 6:12 slope, 28-foot-span trusses is heel joint failure, and if a weakest-link theory is used, no strength increase was observed for trusses inside of truss systems, but significant load-sharing was found for localized single truss loading.
