Effects of End Distance and Temperature on Thin-Sheet Steel Double Shear-Bolted Connections
Publication: Journal of Structural Engineering
Volume 146, Issue 7
Abstract
An experimental investigation was conducted with thin-sheet steel (TSS) double shear-bolted connections at elevated temperatures. The connection specimens were fabricated by TSS 0.42-mm G550 and 1.90-mm G450. The specimens were designed with variation in end distance. The tests were conducted at five different nominal temperature levels up to 900°C using the steady-state test method. The variation of the end distance and temperature on the behavior of the connection specimens was investigated. The increment of the connection ultimate load was found as the end distance increased up to five times the diameter of the bolt. It was also found that deteriorations of connection strengths occurred in a similar manner to the corresponding material properties at elevated temperatures. At each nominal temperature level, as the end distance increased, the failure modes of specimens changed from tearout to bearing. The experimental results were compared with predictions by using international design codes for cold-formed steel structures, including NAS 2016, EC3-1.3, and AS/NZS 2018. In calculating the nominal strengths of the connections, the reduced material properties of TSS obtained at elevated temperatures were used. Overall, the predictions from NAS, EC3-1.3, and AS/NZS were found to be conservative, with AS/NZS providing the least conservative and least scattered predictions. In general, NAS and AS/NZS could accurately predict the failure modes for TSS connection specimens that failed in tearout and bearing failure at different temperature levels.
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References
AS/NZS (Australian/New Zealand Standard). 2018. Cold-formed steel structures. AS/NZS4600. Sydney, Australia: Standards Australia.
Cai, Y., and B. Young. 2014. “Structural behavior of cold-formed stainless steel bolted connections.” Thin-Walled Struct. 83 (Oct): 147–156. https://doi.org/10.1016/j.tws.2014.01.014.
Cai, Y., and B. Young. 2015. “High temperature tests of cold-formed stainless steel double shear bolted connections.” J. Constr. Steel Res. 104 (Jan): 49–63. https://doi.org/10.1016/j.jcsr.2014.09.015.
Cai, Y., and B. Young. 2019. “Effects of end distance on thin sheet steel bolted connections.” Eng. Struct. 196 (Oct): 109331. https://doi.org/10.1016/j.engstruct.2019.109331.
CEN (European Committee for Standardization). 2006. Eurocode3: Design of steel structures—Part 1–3: General rules supplementary rules for cold-formed members and sheeting. EN1993-1-3. Brussels, Belgium: CEN.
Craveiro, H. D., J. C. Rodrigues, and L. Laím. 2014. “Cold-formed steel columns made with open cross-sections subjected to fire.” Thin-Walled Struct. 85 (Dec) 1–14. https://doi.org/10.1016/j.tws.2014.07.020.
Craveiro, H. D., J. C. Rodrigues, and L. Laím. 2016. “Experimental analysis of built-up closed cold-formed steel columns with restrained thermal elongation under fire conditions.” Thin-Walled Struct. 107 (Oct): 564–579. https://doi.org/10.1016/j.tws.2016.07.001.
Imran, M., M. Mahendran, and P. Keerthan. 2018. “Mechanical properties of cold-formed steel tubular sections at elevated temperatures.” J. Constr. Steel Res. 143 (Apr): 131–147. https://doi.org/10.1016/j.jcsr.2017.12.003.
Kankanamge, N. D., and M. Mahendran. 2011. “Mechanical properties of cold-formed steels at elevated temperatures.” Thin-Walled Struct. 49 (1): 26–44. https://doi.org/10.1016/j.tws.2010.08.004.
Laím, L., J. C. Rodrigues, and H. D. Craveiro. 2015. “Flexural behavior of beams made of cold-formed steel sigma-shaped sections at ambient and fire conditions.” Thin-Walled Struct. 87 (Feb): 53–65. https://doi.org/10.1016/j.tws.2014.11.004.
Laím, L., J. C. Rodrigues, and H. D. Craveiro. 2016. “Flexural behavior of axially and rotationally restrained cold-formed steel beams subjected to fire.” Thin-Walled Struct. 98 (Jan): 39–47. https://doi.org/10.1016/j.tws.2015.03.010.
Laím, L., J. P. C. Rodrigues, and L. S. da Silva. 2013. “Experimental and numerical analysis on the structural behaviour of cold-formed steel beams.” Thin-Walled Struct. 72 (Nov): 1–13. https://doi.org/10.1016/j.tws.2013.06.008.
Mahenthirarasa R., and M. Mahendran. 2019. “Elevated temperature mechanical properties of cold-rolled steel sheets and cold-formed steel sections.” In Proc., 9th Int. Conf. on Steel and Aluminium Structures (ICSAS19). London: Independent Publishing Network.
NAS (North American Specification). 2016. North American specification for the design of cold-formed steel structural members. AISI S100. Washington, DC: American Iron and Steel Institute.
Rogers, C. A., and G. J. Hancock. 1998. “Bolted connection tests of thin G550 and G300 sheet steels.” J. Struct. Eng. 124 (7): 798–808. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:7(798).
Rogers, C. A., and G. J. Hancock. 1999. “Bolted connection design for sheet steels less than 1.0 mm thick.” J. Constr. Steel Res. 51 (2): 123–146. https://doi.org/10.1016/S0143-974X(99)00018-8.
Teh, L. H., and D. D. A. Clements. 2012. “Block shear capacity of bolted connections in cold-reduced steel sheets.” J. Struct. Eng. 138 (4): 459–467. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000478.
Teh, L. H., and M. E. Uz. 2014. “Effect of loading direction on the bearing capacity of cold-reduced steel sheets.” J. Struct. Eng. 140 (12): 06014005. https://doi-org/10.1061/(ASCE)ST.1943-541X.0001107.
Torabian, S., D. C. Fratamico, and B. W. Schafer. 2016. “Experimental response of cold-formed steel zee-section beam-columns.” Thin-Walled Struct. 98 (Jan): 496–517. https://doi.org/10.1016/j.tws.2015.10.016.
Torabian, S., B. Zheng, and B. W. Schafer. 2015. “Experimental response of cold-formed steel lipped channel beam-columns.” Thin-Walled Struct. 89 (Apr): 152–168. https://doi.org/10.1016/j.tws.2014.12.003.
Wang, L., and B. Young. 2014. “Design of cold-formed steel channels with stiffened webs subjected to bending.” Thin-Walled Struct. 85 (Dec): 81–92. https://doi.org/10.1016/j.tws.2014.08.002.
Wang, L., and B. Young. 2016a. “Behavior of cold-formed steel built-up sections with intermediate stiffeners under bending. I: Tests and numerical validation.” J. Struct. Eng. 142 (3): 04015150. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001428.
Wang, L., and B. Young. 2016b. “Behavior of cold-formed steel built-up sections with intermediate stiffeners under bending. II: Parametric study and design.” J. Struct. Eng. 142 (3): 04015151. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001427.
Yan, S., and B. Young. 2011. “Tests of single shear bolted connections of thin sheet steels at elevated temperatures—Part I: Steady state tests.” Thin-Walled Struct. 49 (10): 1320–1333. https://doi.org/10.1016/j.tws.2011.05.013.
Yan, S., and B. Young. 2012. “Bearing factors for single shear bolted connections of thin sheet steels at elevated temperatures.” Thin-Walled Struct. 52 (Mar): 126–142. https://doi.org/10.1016/j.tws.2011.12.008.
Yan, S., and B. Young. 2013. “Effects of elevated temperatures on double shear bolted connections of thin sheet steels.” J. Struct. Eng. 139 (5): 757–771. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000556.
Young, B., and G. J. Hancock. 2003. “Compression tests of channels with inclined simple edge stiffeners.” J. Struct. Eng. 129 (10): 1403–1411. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:10(1403).
Young, B., and K. J. R. Rasmussen. 1998. “Design of lipped channel columns.” J. Struct. Eng. 124 (2): 140–148. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:2(140).
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Published In
Journal of Structural Engineering
Volume 146 • Issue 7 • July 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Dec 21, 2018
Accepted: Jan 2, 2020
Published online: Apr 22, 2020
Published in print: Jul 1, 2020
Discussion open until: Sep 22, 2020
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