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Title: Lateral load performance of structural insulated panel (SIP) diaphragms

Source: Res. Pap. FPL-RP-700. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 1-19.

Author(s)Yeh, Borjen ; Skaggs, Tom ; Wang, Xiping ; Williamson, Tom

Publication Year: 2019  View PDF »

Category: Research Papers

Abstract: Structural insulated panels (SIPs) have been successfully used in wall and roof construction for years. Combining the strength of facers made of wood structural panels and the energy-efficient core made of foam plastic insulation, SIP walls and roofs are structurally strong and energy-efficient construction systems. However, the data for lateral load performance of most SIP systems have generally remained proprietary and are covered in code evaluation reports held by various SIP manufacturers. The purpose of this project was to develop test data needed to characterize the lateral load performance of SIP diaphragms. The testing program involved structural testing of 12 full-sized SIP diaphragms of various configurations that covered a range of key variables including longitudinal and transverse SIP joints, framing connection, and SIP screw spacing. The static load testing of each SIP diaphragm was conducted following a monotonic procedure specified in ASTM E455-16. Supplementary mechanical tests were conducted to determine the lateral resistance of the metal fasteners in accordance with ASTM F1575. The results of this testing program indicated that stiffness and deformation capacity of the SIP diaphragms can be correlated to the number of SIP segments used in the diaphragm. As the number of SIP segments increased, the SIP diaphragm stiffness decreased and deformation capacity increased.

Keywords: Diaphragm; fastener; framing; longitudinal joint; peak load; structural insulated panel (SIP); transverse joint; yield strength

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 8,192 kb(s)

Date posted: 05/29/2019
RITS Product ID: 94163
Current FPL Scientist associated with this product
Wang, Xiping
Research Forest Products Technologist
  

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