The seismic performance of a semi-rigid composite joint with a double-sided extended end-plate. Part I: Experimental research

Abstract Composite structures exhibit higher stiffness than steel structures with similar ductility, and also show better performance to fire action. These benefits have led to an increase in the number of composite structures built in high seismic areas. The main objective of the experimental tests explained in this article is to obtain useful data about the seismic behaviour of a composite semi-rigid joint with a double-sided extended end-plate. A series of monotonic and cyclic quasi-static tests was performed to characterize the behaviour of this joint type against seismic actions. The tests were performed on interior and on exterior joints, and they have provided useful data about the ductility of the joint, the amount of energy dissipated and the degradation effects. This data was used to elaborate and calibrate a component-based model of the joint that is composed of two rotational springs, one for the shear panel behaviour and the other for the connection behaviour. This model is capable of simulating the joint behaviour and damage under cyclic loads with sufficient accuracy.

[1]  Fabio Ferrario,et al.  Seismic performance of semi-rigid composite joints with a double-sided extended end-plate. Part II: Seismic simulations , 2010 .

[2]  T. J. Hogan.  Structural connections: stability and strength , 1990 .

[3]  Eduardo Bayo,et al.  An effective component-based method to model semi-rigid connections for the global analysis of steel and composite structures , 2006 .

[4]  Amr S. Elnashai,et al.  Seismic design and performance of composite frames , 2004 .

[5]  Oreste S. Bursi,et al.  Behaviour of composite substructures with full and partial shear connection under quasi-static cyclic and pseudo-dynamic displacements , 2000 .

[6]  R. Bouc.  Forced Vibration of Mechanical Systems with Hysteresis , 1967 .

[7]  M. V. Sivaselvan,et al.  Hysteretic models for deteriorating inelastic structures , 2000 .

[8]  Ulf Wickström,et al.  Comments on calculation of temperature in fire-exposed bare steel structures in prEN 1993-1-2: Eurocode 3—design of steel structures—Part 1–2: general rules—structural fire design , 2005 .

[9]  Chanakya Arya,et al.  Eurocode 3: Design of steel structures , 2018, Design of Structural Elements.

[10]  C Plumier,et al.  Dynamic Tests on the Ductility of Composite Steel-Concrete Beams. , 1998 .

[11]  Roberto T. Leon,et al.  Component Modeling of Partially Restrained Composite Joints under Cyclic and Dynamic Loading , 2004 .

[12]  Stefano Caramelli,et al.  3D full-scale seismic testing of a steel-concrete composite building at ELSA , 2004 .

[13]  Paulo J. S. Cruz,et al.  Experimental behaviour of end-plate beam-to-column composite joints under monotonical loading , 2001 .

[14]  H Krawinkler,et al.  Shear in Beam-Column Joints in Seismic Design of Steel Frames , 1978, Engineering Journal.

[15]  Stefano Caramelli,et al.  Seismic design of beam-to-column connections for steel-concrete composite moment resisting frames , 2002 .