Development Behavior for Post-Tensioned Self-Centering Steel Connection under Cyclic Loading
One of the newest steel beam-column joints to replace conventional welded connections, post-tensioned connection steel is with the upper and lower angles. In this connection are high-strength steel strands that parallel beam web and angles between beams and column. Actually high resistance strands and upper and lower angles respectively are provider centralization properties and energy dissipation capacity of the connection. The benefits of post-tensioned steel can be used in connection with the centralization and lack of relative displacement (drift) persistent, stay elastic core components such as connecting beams, columns and fountains connection, appropriate initial stiffness and joint manufacture with materials and traditional skills. . In this study, numerical modelling in Abaqus software, the results of the analysis were compared with the results of laboratory samples and the results showed that the two together are a perfect match. After validation, parameters influential centrist connection then pulled the thick angles in three numerical models were evaluated. The results show that by increasing the thickness of the angles, increase energy dissipation capacity and ductility connection and the β₁ value does not experience tangible changes with changes in angle thickness.
Ricles, J.M., et al., Posttensioned seismic-resistant connections for steel frames. Journal of Structural Engineering, 2001. 127(2): p. 113-121.
Garlock, M., Full-scale testing, seismic analysis, and design of post-tensioned seismic resistant connections for steel frames, in Civil and Environmental Engineering Dept., Lehigh University. 2002.
Christopoulos, C., et al., Posttensioned energy dissipating connections for moment-resisting steel frames. Journal of Structural Engineering, 2002. 128(9): p. 1111-1120.
Christopoulos, C., A. Filiatrault, and B. Folz, Seismic response of self‐centring hysteretic SDOF systems. Earthquake engineering & structural dynamics, 2002. 31(5): p. 1131-1150.
Garlock, M.M., J.M. Ricles, and R. Sause, Cyclic load tests and analysis of bolted top-and-seat angle connections. Journal of structural Engineering, 2003. 129(12): p. 1615-1625.
Garlock, M.M., J.M. Ricles, and R. Sause, Experimental studies of full-scale posttensioned steel connections. Journal of Structural Engineering, 2005. 131(3): p. 438-448.
Moradi, S. and M.S. Alam, Finite-Element Simulation of Posttensioned Steel Connections with Bolted Angles under Cyclic Loading. Journal of Structural Engineering, 2015. 142(1): p. 04015075.
Pirmoz, A. and M.M. Liu, Finite element modeling and capacity analysis of post-tensioned steel frames against progressive collapse. Engineering Structures, 2016. 126: p. 446-456.
Shiravand, M. and S. Mahboubi, Behavior of post-tensioned connections with stiffened angles under cyclic loading. Journal of Constructional Steel Research, 2016. 116: p. 183-192.
Simulia, D., Analysis User Manual, in Abaqus/Standard. 2014, Simulia: USA.
Moradi, S. and M.S. Alam. ANSYS MODELING OF POST-TENSIONED STEEL BEAM-COLUMN CONNECTIONS UNDER CYCLIC LOADING. In 5th International Structural Specialty Conference, CSCE, London, ON. 2016.
ASTM, Standard methods for tension testing of metallic materials, in ASTM Designation E8-91. 1991: Philadelphia.
ASTM, Standard specification for steel strand, uncoated seven-wired for prestessed concrete, in ASTM Designation NO. A416-94. 1997: Philadelphia.
ANSI, A., AISC 341-10 (2010). ‘‘Seismic provisions for structural steel buildings.’’American Institute of Steel Construction. Inc.: Chicago, IL.
Venture, S.J., Protocol for fabrication, inspection, testing, and documentation of beam-column connection tests and other experimental specimens, in Rep. No. SAC/BD-97. 1997.
Garlock, M., J.M. Ricles, and R. Sause. Experimental studies on full-scale post-tensioned steel moment connections. in 13th World Conference on Earthquake Engineering. 2004.
Venture, S.J. and G.D. Committee, Recommended seismic design criteria for new steel moment-frame buildings. 2000: Federal Emergency Management Agency.
P. Rojas, J. Ricles, R. Sause, Seismic performance of post-tensioned steel moment Resisting frames with friction devices, J. Struct. Eng. ASCE 131 (4) (2005) 529–540.
M. Wolski, J. Ricles, R. Sause, Experimental study of a self-centering beam–column Connection with bottom flange friction device, J. Struct. Eng. ASCE 135 (5) (2009) 479–488.
M.A. Hadianfard, R. Sharbati, A. Lashkari, Cyclic behavior of post-tensioned energy Dissipating steel connections, 14th international conf. on computing in civil and Building engineering, Moscow, Russia, 27–29 June, 2012.
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