Tests of Post-Frame Building Diaphragm
Publication: Journal of Structural Engineering
Volume 125, Issue 10
Abstract
Diaphragm test results of a full-scale post-frame building are presented. The post-frame building was tested at various stages of construction to determine the contributions of the different components of the building system as metal cladding was added. Subsequently, the effectiveness of different bracing systems (steel bracing, plywood sheathing, and stitching of panel overlap seams) was evaluated for supplemental reinforcement of an end wall that contains an opening equal to 25% or 50% of the area of the end wall. Wind loading was simulated by applying horizontal loads at the eave. Measured eave deflections and applied loads were used to predict stiffness values of interior frames, roof diaphragm, and end walls. Strain gauges were installed on roof purlins in end, middle, and intermediate bays across the building width to determine the interaction between the roof framing system and the metal-cladding membrane. The full-scale tests provided several insights, including (a) in-plane deflection of end walls, (b) continuity between the two roof halves, (c) load sharing between frames, (d) interaction between roof purlins and metal cladding, and (e) contribution of interior purlins in resisting diaphragm forces.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Anderson, G. A. (1990). “Diaphragm panel testing.” Frame Building Professional, 2(4), 28–30.
2.
Bohnhoff, D. (1992). “Expanding diaphragm analysis for post-frame buildings.” Appl. Engrg. in Agr., 8(4), 509–517.
3.
Cold formed steel design manual. (1986). American Iron and Steel Institute, Washington, DC.
4.
“Diaphragm design of metal-clad, post-frame rectangular buildings.” (1990). ASAE EP 484.1, 37th Ed., American Society of Agricultural Engineers, St. Joseph, Mich.
5.
Gebremedhin, K. G. (1987). SOLVER: An interactive structures analyzer for microcomputers; version 2. Northeast Regional Agric. Engrg. Service, Cornell University, Ithaca, N.Y.
6.
Gebremedhin, K. G., Bahler, E. L., and Humphreys, S. R. (1986). “A modified approach to post-frame design using diaphragm theory.” Trans. ASAE, 29(5), 1364–1372.
7.
Gebremedhin, K. G., and Jorgensen, M. C. (1993). “Stiffness of post-frame building end walls.” Trans. ASAE, 35(3), 977–985.
8.
Gebremedhin, K. G., and Woeste, F. E. (1993). “Evaluating design assumptions of ASAE EP 484.1.” ASAE Paper No. 93-4548, American Society of Agricultural Engineers, St. Joseph, Mich.
9.
Hoagland, R. C., and Bundy, D. S. (1983). “Post-frame design using diaphragm theory.” Trans. ASAE, 26(5), 1499–1503.
10.
Hoyle, R. J., and Woeste, F. E. (1989). Wood technology in the design of structures, 5th Ed., Iowa State University Press, Ames, Iowa.
11.
McFadden, V. J., Bundy, D. S., and Lukens, A. (1991). “Evaluation of the wind loading of a post-frame structure.” Trans. ASAE, 34(3), 1860–1865.
12.
Niu, K. T. ( 1996). “A semi-empirical three-dimensional stiffness model for metal-clad post-frame buildings,” PhD thesis, Agric. and Biol. Engrg. Dept., Cornell University, Ithaca, N.Y.
13.
Niu, K. T., and Gebremedhin, K. G. (1997). “Three-dimensional building stiffness model for post-frame buildings.” Trans. ASAE, 40(3), 795–801.
14.
“Post and pole foundation design.” (1991). ASAE EP 486, 38th Ed., American Society of Agricultural Engineers, St. Joseph, Mich.
15.
Price, J. ( 1998). “A full-scale post-frame building testing program—Six years of experience.” MEng report, Dept. of Agric. and Biol. Engrg., Cornell University, Ithaca, N.Y.
16.
Timber construction manual, 3rd Ed. (1985). American Institute of Timber Construction, Englewood, Colo.
17.
Wee, C. L., and Anderson, G. A. (1990). “Strength and stiffness of metal-clad roof section.” ASAE Paper No. 90-4029, American Society of Agricultural Engineers, St. Joseph, Mich.
18.
Yadama, V., Davalon, J. F., Loferski, J. R., and Holzer, S. M. (1991). “Selecting a gauge length to measure panel-to-grain strain in southern pine.” Forest Products J., 41(10), 65–68.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 125 • Issue 10 • October 1999
Pages: 1170 - 1178
History
Received: Jan 12, 1999
Published online: Oct 1, 1999
Published in print: Oct 1999
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.