Approximate Methods for Estimating Hysteretic Energy Demand on Plan-Asymmetric Buildings

The first step in a hysteretic energy-based design approach of performance-based design is the estimation of hysteretic energy demand in the structure. A nonlinear response-history analysis of the multi-degree of freedom model gives an accurate estimation, but it is not suitable for adopting in design. Two alternative methods, based on the concepts of modal pushover analysis (MPA) and 2D-MPA, are proposed in this article for uniaxial plan-asymmetric structures. Application studies show that both methods are efficient. While the 2D-MPA-based method is more accurate, the MPA-based method is more suitable for design adoption. Significant conclusions are given for prospective application of these methods.     

Annual Report of the Committee and Accounts for the Year 1981

Superstitious Beliefs and Practices of the Finns. I. Those relating to Hunting and Trapping. (Sttomen kansan mtiinaisia taikoja. I. Metsastys taikoja). Helsingfors, 1891, pp. 243.By John Abercromby.     

The Chronicle of Ireland: then and now

This is the first systematic analysis of the contents of the earliest monastic chronicle in the Latin west, the so‐called Chronicle of Ireland, which spans the years 431/2–911. It aims to establish the reasons for which the Chronicle was compiled, unravel the process of compilation, and challenge the generic classification of the Chronicle and other European chronicles of this kind as works of historiography. As an alternative, it is proposed that the Chronicle might have been compiled with an eschatological objective in mind. The present investigation is shown to have implications for our understanding of early medieval chronicling more generally.