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Performance based earthquake engineering in Arup

Grant, DN; (2009) Performance based earthquake engineering in Arup. In: Earthquake Engineering by the Beach. : Anacapri, Italy.

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Abstract

Arup is an industry leader in performance-based earthquake engineering (PBEE), building upon a history of computer-led design and analysis in its Advanced Technology and Research group (AT+R). This paper provides a summary of Arup’s PBEE capabilities (Section 2) and recent projects (Section 3), with particular focus on three main projects in which I have been a member of the design and analysis team: (1) the St Francis Towers, two high-rise buildings located in Manila, Philippines, that employed an innovative damping solution to reduce wind and seismic loads; (2) an offshore platform in a highly-seismic area of the Caspian Sea, off the coast of Turkmenistan; and (3) Torre Reforma, a 240 m building in Mexico City, currently under design. In each case, Arup’s PBEE analysis capabilities played an important role in ensuring an efficient design for the client. To remain on the cutting edge of earthquake engineering, Arup also carries out various research activities, both in response to specific problems experienced on projects, and in anticipation of them. One issue that is invariably involved in every PBEE project is the development of ground motion histories to use as input to response history analysis models. Even if ground motion selection (and possibly modification) is performed by a specialist engineering seismology consultant, the structural analyst needs to appreciate the process that has been carried out, and what effect this can have on structural response. Some thoughts on earthquake ground motion selection and modification from my perspective as a practising structural engineer are summarised in Section 4, including a brief description of my program, RSPMatchBi, for spectral matching of two-component ground motions.

Type:Proceedings paper
Title:Performance based earthquake engineering in Arup
Publisher version:http://www.reluis.it/doc/EEBTB.htm
Additional information:keywords: Arias intensity, Arup, By me, Ground motion, LS-DYNA, RspMatch, Selection, Structures, Tall
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Civil, Environmental and Geomatic Engineering

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