Abstract
An Energy Dissipating Cladding System has been developed for use in buildings designed based on the concept of damage-controlled structure in seismic design. This innovative cladding panel system is capable of functioning both as a structural brace, as well as a source of energy dissipation, without demanding inelastic action and ductility from the basic lateral force resisting system. The structural systems of many modern buildings typically have large openings to accommodate glazing systems, and a popular type of construction uses spandrel precast cladding panels at each floor level that supports strip window systems. The present study focuses on developing spandrel type precast concrete cladding panels as supplementary energy dissipating devices that are added to the basic structural system. Through a series of analytical studies, the result of evaluating the ability of the proposed Energy Dissipating Cladding system to improve the earthquake resistance of the buildings is presented here.
Highlights
Introduction of an Innovative Cladding PanelSystem forMulti-Story BuildingsHathairat Maneetes 1 and Ali M
For the three-bay structure considered, the Friction Damper (FD) performed significantly better than the Ordinary Model Frame (OMF)
The present study has developed an innovative design concept that integrates both architectural and structural performance into the Energy Dissipating Cladding System (EDCS)
Summary
In conventional code-based earthquake-resistant design, the structure response to the design ground motion can be significantly damped through the action of inelastic deformation typically concentrated at the beam-column connections or specially detailed energy absorbing framing elements (e.g., shear link in an eccentrically braced frame). When properly designed and constructed, these energy absorbing elements are expected to sustain many cycles of inelastic deformation without collapse in the event of a strong earthquake. In principle, these elements would be replaced at the end of a severe earthquake event because of the presence of large plastic deformations. The integrity of the structure or building is expected to remain essentially intact, even after an earthquake event. This paper briefly introduces the EDCS component and presents the results of a study that analytically evaluates the appropriateness of using such a system as supplementary energy dissipating devices for seismic design of certain types of buildings
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