5,801 research outputs found
Dynamic nonlinear analyses for the 4-storey infilled R/C frame: study of a retrofitting solution
No full textA research project on assessment and retrofitting of R/C frame structures is currently being developed under the research programme of the ICONS TMR-research network. This paper presents and discusses the preliminary experimental results from a 4-storey bare frame representative of the common practice of 40~50 years ago in most south European countries and devotes special attention to the study of a retrofitting solution based on bracing and rubber dissipaters, which intends to increase stiffness and damping reducing consequently the earthquake deformation demands.O estudo aqui apresentado concentra-se numa solução de reforço de um pórtico utilizando contraventamentos (k-bracing) com perfis de aço em conjunto com elementos elastoméricos de dissipação. Os resultados das análises não lineares da estrutura com e sem alvenaria e com reforço são apresentados e discutidos. Na segunda parte da comunicação apresentam-se os resultados experimentais já disponíveis e discute-se o problema da modelação recorrendo aos resultados experimentais e comparando os resultados obtidos com diferentes tipos de modelos
Seismic analyses of a R/C building: study of a retrofitting solution
No full textThe preliminary experimental results from the tests on a 4-storey R/C frame structure are presented and discussed. The full-scale model is representative of the common practice of 40~50 years ago in most south European countries. Special attention is devoted to the study of a retrofitting solution based on bracing and rubber dissipaters, which intends to increase stiffness and damping reducing consequently the earthquake deformation demands
SC_1142014.png;Seaton 'B', 'C', 'D', Phase 2;School Road; Regent Walk
No full textMulti-storey block details: seven 19-storey blocks containing 781 dwellings; Multi-storey block name(s): Linksfield Court SC39; Regent Court SC40; Promenade Court SC41; Beachview Court SC42; Aulton Court SC43; North Sea Court SC44; Bayview Court SC45; Image detail: View of Seaton B, C and D Phase
At limits of life: multidisciplinary insights reveal environmental constraints on biotic diversity in continental Antarctica
No full textData source: Supporting information, http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0044578#s5Multitrophic communities that maintain the functionality of the extreme Antarctic terrestrial ecosystems, while the simplest of any natural community, are still challenging our knowledge about the limits to life on earth. In this study, we describe and interpret the linkage between the diversity of different trophic level communities to the geological morphology and soil geochemistry in the remote Transantarctic Mountains (Darwin Mountains, 80uS). We examined the distribution and diversity of biota (bacteria, cyanobacteria, lichens, algae, invertebrates) with respect to elevation, age of glacial drift sheets, and soil physicochemistry. Results showed an abiotic spatial gradient with respect to the diversity of the organisms across different trophic levels. More complex communities, in terms of trophic level diversity, were related to the weakly developed younger drifts (Hatherton and Britannia) with higher soil C/N ratio and lower total soluble salts content (thus lower conductivity). Our results indicate that an increase of ion concentration from younger to older drift regions drives a succession of complex to more simple communities, in terms of number of trophic levels and diversity within each group of organisms analysed. This study revealed that integrating diversity across multi-trophic levels of biotic communities with abiotic spatial heterogeneity and geological history is fundamental to understand environmental constraints influencing biological distribution in Antarctic soil ecosystems.Catarina Magalhães, Mark I. Stevens, S. Craig Cary, Becky A. Ball, Bryan C. Storey, Diana H. Wall, Roman Tűrk and Ulrike Ruprech
Atomic data from the IRON project - LI. Electron impact excitation of FeIX
No full textWe calculate collision strengths and thermally averaged collision strengths for electron excitation between the one hundred and forty energetically lowest levels of Fe8+. The scattering target is more elaborate than in any earlier work and large increases are found in the excitation rates among the levels of the 3s(2)3p(5)3d electron configuration due to resonance series that have not been considered previously. The implications for solar and stellar spectroscopy have been discussed elsewhere (Storey & Zeippen 2001). We correct some errors that were made in generating the figures given in that paper and present corrected versions
SC_1142010.png;Seaton 'B', 'C', 'D', Phase 1;School Road
No full textMulti-storey block details: three 10-storey blocks containing 170 dwellings; Multi-storey block name(s): Donview House SC36; Seaton House SC37; Seaview House SC38; Image detail: View of Seaton B, C and D development - two 10 storey blocks; Original Commissioning Authority Aberdeen Burgh Council; Construction period (from/to): 1971 Context: Tower Block UK is a project supported by the Heritage Lottery Fund, bringing together public engagement and an openly-licensed image archive in an attempt to emphasise the social and architectural importance of tower blocks, and to frame multi-storey social housing as a coherent and accessible nationwide heritage. The Tower Block UK image archive is a searchable database of around 4,000 images of every multi-storey social housing development built in the UK. The photographs were largely taken in the 1980s by Miles Glendinning and are made available here for public use. As many of the blocks documented and photographed have since been demolished, the archive functions in part as a repository of information on an important aspect of UK heritage that is now vanishing. The archive itself catalogues multi-storey blocks as part of the developments within which they were initially commissioned and built. It gives details of notable dates, such as when local authorities approved the developments and when construction began or finished. Alongside this, the archive provides information on the local authorities, architects, and other agents involved in the processes of commissioning, designing, and constructing mass social housing. While the most historically 'accurate' identification labels in the database are the original overall development or project names, the archive also contains details of the individual blocks built
SC_1142015.png;Seaton 'B', 'C', 'D', Phase 1;School Road
No full textMulti-storey block details: three 10-storey blocks containing 170 dwellings; Multi-storey block name(s): Donview House SC36; Seaton House SC37; Seaview House SC38; Image detail: View of Seaton B, C and D development from 13th floor of Linksfield Court; Original Commissioning Authority Aberdeen Burgh Council; Construction period (from/to): 1971 Context: Tower Block UK is a project supported by the Heritage Lottery Fund, bringing together public engagement and an openly-licensed image archive in an attempt to emphasise the social and architectural importance of tower blocks, and to frame multi-storey social housing as a coherent and accessible nationwide heritage. The Tower Block UK image archive is a searchable database of around 4,000 images of every multi-storey social housing development built in the UK. The photographs were largely taken in the 1980s by Miles Glendinning and are made available here for public use. As many of the blocks documented and photographed have since been demolished, the archive functions in part as a repository of information on an important aspect of UK heritage that is now vanishing. The archive itself catalogues multi-storey blocks as part of the developments within which they were initially commissioned and built. It gives details of notable dates, such as when local authorities approved the developments and when construction began or finished. Alongside this, the archive provides information on the local authorities, architects, and other agents involved in the processes of commissioning, designing, and constructing mass social housing. While the most historically 'accurate' identification labels in the database are the original overall development or project names, the archive also contains details of the individual blocks built
SC_1142006.png;Seaton 'B', 'C', 'D', Phase 1;School Road
No full textMulti-storey block details: three 10-storey blocks containing 170 dwellings; Multi-storey block name(s): Donview House SC36; Seaton House SC37; Seaview House SC38; Image detail: View of Seaton B, C and D development; Original Commissioning Authority Aberdeen Burgh Council; Construction period (from/to): 1971 Context: Tower Block UK is a project supported by the Heritage Lottery Fund, bringing together public engagement and an openly-licensed image archive in an attempt to emphasise the social and architectural importance of tower blocks, and to frame multi-storey social housing as a coherent and accessible nationwide heritage. The Tower Block UK image archive is a searchable database of around 4,000 images of every multi-storey social housing development built in the UK. The photographs were largely taken in the 1980s by Miles Glendinning and are made available here for public use. As many of the blocks documented and photographed have since been demolished, the archive functions in part as a repository of information on an important aspect of UK heritage that is now vanishing. The archive itself catalogues multi-storey blocks as part of the developments within which they were initially commissioned and built. It gives details of notable dates, such as when local authorities approved the developments and when construction began or finished. Alongside this, the archive provides information on the local authorities, architects, and other agents involved in the processes of commissioning, designing, and constructing mass social housing. While the most historically 'accurate' identification labels in the database are the original overall development or project names, the archive also contains details of the individual blocks built
These sporting lives: David Storey, Barry Hines, and the case of the author-athlete
No full textThis article introduces the concept of the ‘author-athlete’ as a mechanism for examining the sporting narratives produced by authors who have experienced high level sport. This concept is examined through the careers of David Storey and Barry Hines, two authors from Yorkshire who were prominent in the 1960s, 1970s and 1980s and who turned to writing after careers in Rugby League and football respectively. The article draws on archival material alongside analyses of both writers’ sporting narratives to identify common features and to reflect on the particular qualities of sporting narratives produced by ex-athletes. In the case of Hines and Storey, it is argued that the concept of the author-athlete enables an understanding to emerge of the ways in which essentialist narratives of Northern sporting heroism and masculinity can be challenged
Experimental seismic response of a resilient 3-storey post-tensioned timber framed building with dissipative braces
No full textWith the increased number of multi-storey buildings in seismic areas, research efforts have been focused on developing earthquake resilient systems, such as low-damage techniques based on the combination of post-tensioning and dissipating devices. This paper describes the experimental study performed on a 3-storey post-tensioned timber framed (Pres-Lam) building equipped with energy dissipating systems. The testing project consisted of three phases adopting different configurations of the experimental model: (1) post-tensioning to beam-column joints only, (2) post-tensioning and dissipative rocking mechanisms and (3) post-tensioning and dissipative braces. The main objective of this paper is to experimentally investigate on the seismic response of a large-scale specimen with dissipative braces located in high seismic area, considering construction details similar to those adopted in practical applications. During the experimental campaign, the test frame was subjected to more than one hundred ground motions considering a set of seven spectra-compatible earthquakes at increasing intensity levels. The dissipating bracing system with external replaceable hysteretic dampers improves the seismic resilience of multi-storey Pres-Lam buildings, showing inter-storey drift comparable to those with rocking walls, with full recentring capability and without structural damages or post-tensioning losses through seismic tests
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