Structural dynamics and earthquake engineering paper
Abtahi, P, Samali, B 2014, 'Evaluation of in-plane and out-of-plane movement of façade panels to reduce structure response during earthquake excitation', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. II, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 967-972. ISBN: 9780994152008.
Development and implementation of advanced facade systems to enhance seismic response of building structures have been a topic of debate for structural and architectural engineers. In this paper, a seismic control method using a novel façade system, as an energy-absorbing device, is proposed in order to decrease the level of energy imparted to the main structure during seismic activities. Conventional façade brackets are replaced by sacrificial elements which can have back and forth movement during earthquake excitation. Predefined plastic hinge behaviour is suggested for the façade bracket elements in a double skin façade system. Application of flexible dissipative connections in façade systems, if properly designed, can reduce inelastic deformation of the main structure in comparison to cases without the proposed connections. Some comparisons of structures with elastic and plastic behaving elements are also included in numerical modellings in this paper. Initial works have demonstrated that seismic response for low-rise buildings, subjected to moderate to severe earthquakes, can be substantially reduced by introduction of a smart design of double skin façade systems.