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1 – 10 of 185
Article
Publication date: 8 December 2010

Florian Block, Chaoming Yu and Neal Butterworth

The British Building Regulations allow the application of performance based design methods to ensure the fire resistance of buildings. This has led to significant amounts of…

Abstract

The British Building Regulations allow the application of performance based design methods to ensure the fire resistance of buildings. This has led to significant amounts of research and testing on the fire performance of structures. This research generated the understanding that steel framed buildings have an inherent fire resistance, which has in turn resulted in the development of specialist numerical calculation tools as well as simplified design methods for the fire design of steel-framed structures. The paper describes the practical application of these structural fire engineering methods using a large retail and cinema complex in the UK as a case study. The finite element software Vulcan has been used to analyse the behaviour of large parts of this multi-storey building during a number of likely design fire scenarios in order to optimise the amount of applied passive fire protection to the structure. The building is constructed as a steel composite structure with normal down-stand composite beams supporting a composite floor on trapezoidal metal deck. This type of structure is ideal to utilise the benefits of tensile membrane action during a fire which can be used to omit fire protection from off grid secondary beams. Due to the size and the multiple usage and changing floor construction of the buildings five different sub-frames haven been analysed. In the UK a number of simplified methods are currently applied to justify partially protected steel structures. These methods are based on individual bays only and therefore do not consider the effects of the surrounding structure. In order to investigate the differences further, the behaviour of the large sub-frame models has been compared with the results of individual bay analysis methods.

Details

Journal of Structural Fire Engineering, vol. 1 no. 4
Type: Research Article
ISSN: 2040-2317

Book part
Publication date: 24 August 2022

Florian Becker-Ritterspach, Christoph Dörrenbächer and Matthias Tomenendal

This chapter introduces the readers to the theme of the book. The chapter starts by outlining the socio-economic importance of gazelles and by discussing definitional challenges…

Abstract

This chapter introduces the readers to the theme of the book. The chapter starts by outlining the socio-economic importance of gazelles and by discussing definitional challenges of what gazelles or high-growth firms are. The chapter then points to the academic relevance and to unresolved issues in international gazelle research. The chapter closes with an outline of the three blocks and eight chapters of the book.

Details

The Promises and Properties of Rapidly Growing Companies: Gazelles
Type: Book
ISBN: 978-1-80117-819-8

Keywords

Open Access
Article
Publication date: 7 March 2019

Manuel E. Rademaker, Florian Schuberth and Theo K. Dijkstra

The purpose of this paper is to enhance consistent partial least squares (PLSc) to yield consistent parameter estimates for population models whose indicator blocks contain a…

2166

Abstract

Purpose

The purpose of this paper is to enhance consistent partial least squares (PLSc) to yield consistent parameter estimates for population models whose indicator blocks contain a subset of correlated measurement errors.

Design/methodology/approach

Correction for attenuation as originally applied by PLSc is modified to include a priori assumptions on the structure of the measurement error correlations within blocks of indicators. To assess the efficacy of the modification, a Monte Carlo simulation is conducted.

Findings

In the presence of population measurement error correlation, estimated parameter bias is generally small for original and modified PLSc, with the latter outperforming the former for large sample sizes. In terms of the root mean squared error, the results are virtually identical for both original and modified PLSc. Only for relatively large sample sizes, high population measurement error correlation, and low population composite reliability are the increased standard errors associated with the modification outweighed by a smaller bias. These findings are regarded as initial evidence that original PLSc is comparatively robust with respect to misspecification of the structure of measurement error correlations within blocks of indicators.

Originality/value

Introducing and investigating a new approach to address measurement error correlation within blocks of indicators in PLSc, this paper contributes to the ongoing development and assessment of recent advancements in partial least squares path modeling.

Abstract

Details

Handbook of Transport Modelling
Type: Book
ISBN: 978-0-08-045376-7

Article
Publication date: 1 June 2016

Florian Wiedmann, Ashraf M. Salama and Hatem G. Ibrahim

Since the end of the 1990s, large-scale mega projects have been initiated in Gulf cities to enable an unprecedented urban growth and the expansion of new economic sectors. In this…

Abstract

Since the end of the 1990s, large-scale mega projects have been initiated in Gulf cities to enable an unprecedented urban growth and the expansion of new economic sectors. In this respect, mega projects have played a key role in redefining housing developments in Gulf cities. This paper explores the newly emerging housing typologies and their distinctive roles in defining new urban environments. The selected case studies are located in the Jumeirah District in Dubai, which can be seen as the first prototype of a large cohesive development area that has been built of nine rather differing mega projects including the iconic Palm project and one of the largest residential high-rise agglomerations in the Middle East. The paper is based on the evaluation of official planning data from each project as well as field observations. Conclusions are drawn to highlight key implications while identifying housing development tendencies.

Details

Open House International, vol. 41 no. 2
Type: Research Article
ISSN: 0168-2601

Keywords

Article
Publication date: 1 December 2019

Florian Wiedmann and Smita Khan

This paper explores a new type of housing in India and resulting urban dynamics in Nagpur, a Grade A city in the Indian state of Maharashtra. The accelerating urban growth rate…

Abstract

This paper explores a new type of housing in India and resulting urban dynamics in Nagpur, a Grade A city in the Indian state of Maharashtra. The accelerating urban growth rate led to a dynamic housing market to accommodate the on-going migration. A new housing typology can be identified as clusters of residential towers, developed as gated communities and marketed as first-class neighbourhoods for emerging higher income groups. This research is a timely effort to address the occurring challenges of future urban patterns produced by this housing typology in India. Various urban qualities are needed to foster sustainable urbanism. Housing patterns have a major impact on how urban environments work efficiently, how they accommodate different user groups and how city images, perceptions and thus lifestyles are affected. The paper investigates these new urban sites in relation to their socio-spatial interactions and the resulting production of urban qualities to foster a new understanding of this particular housing typology and its impact on urbanism in India. Analysing through the lens of three major urban qualities of urban efficiency, diversity and identity the study identifies the complex socio-spatial dynamics fostered by vertical gated communities in Nagpur city. The paper concludes with an outlook on the distinctive roles of architects and urban designers to develop synergies between this urban typology and its surroundings

Details

Open House International, vol. 44 no. 4
Type: Research Article
ISSN: 0168-2601

Keywords

Article
Publication date: 1 December 2019

Adel M. Remali, Ashraf M. Salama and Florian Wiedmann

South Asian communities have lived in Scotland since the late nineteenth century, experiencing a substantial growth in the post-war period. This paper contributes a new…

Abstract

South Asian communities have lived in Scotland since the late nineteenth century, experiencing a substantial growth in the post-war period. This paper contributes a new understanding of the spatial practices of South Asian communities in the city of Glasgow based on statistics and surveys. The authors aim to address the gap in literature by analysing patterns of location and trends across the city region over the census period of 2011. The study furthermore integrates a walking tour assessment generated by checklists and a recording scheme. The attributes of cultural identity, economic diversity and socio-spatial practice of six urban spaces within three selected neighbourhoods are examined. Two urban spaces were chosen from each neighbourhood to interpret the diversity of land uses along each case study and the social interaction as well as economic activities of South Asian residents. This suggests that the idea of a coherent 'Asian community' obscures differences and generates assumptions regarding residential behaviour and 'in-group' identities. The research, therefore, provides an enhanced understanding of how these distinctive communities interact with a built environment, which has not been designed to cater certain spatial practices.

Details

Open House International, vol. 44 no. 4
Type: Research Article
ISSN: 0168-2601

Keywords

Book part
Publication date: 24 August 2022

Matthias Tomenendal, Florian Becker-Ritterspach and Christoph Dörrenbächer

The chapter provides an integrated analytical account of the contributions of the volume. Next to the results from a comprehensive literature review on gazelle growth factors, two…

Abstract

The chapter provides an integrated analytical account of the contributions of the volume. Next to the results from a comprehensive literature review on gazelle growth factors, two further content blocks of the volume are summarized, one on gazelles in Germany and one on specific under-researched topics, that is, gazelles’ internationalization and gazelles’ corporate citizenship. The chapter highlights main findings and avenues for further research, including a short discussion on the use of the term “gazelle”.

Details

The Promises and Properties of Rapidly Growing Companies: Gazelles
Type: Book
ISBN: 978-1-80117-819-8

Keywords

Open Access
Article
Publication date: 15 June 2019

Florian Fahrenbach and Florian Kragulj

Considering personality as changeable through a bottom-up process of altering states, habits and traits, constitutes a shift in the predominant paradigm within personality…

3630

Abstract

Purpose

Considering personality as changeable through a bottom-up process of altering states, habits and traits, constitutes a shift in the predominant paradigm within personality psychology. The purpose of this paper is to reconsider Bateson’s theory of learning and organizational triple-loop learning in light of this recent empirical evidence.

Design/methodology/approach

This paper uses a multi-disciplinary conceptual approach. Based on an integrative analysis of literature from recent work in personality psychology, four dimensions (process, content, time and context) are identified that allow linking personality change and triple-loop learning.

Findings

Identifying a bottom-up process of changing states, habits and traits as being central to change personality, allows for reconsidering Bateson’s theory of learning as a theory of personality development (Learning II) and personality change (Learning III). Functionally equivalent, organizational triple-loop learning is conceptualized as a change in an organization’s identity over time that may be facilitated through a change in responding to events and a change in the organization’s routines.

Practical implications

Interventions that change how organizations respond to events and that change the routines within an organization may be suitable to facilitate triple-loop learning in terms of changing organizational identity over time.

Originality/value

This paper contributes to the discussion on Bateson’s theory of learning and organizational triple-loop learning. As interest in personality change grows in organization studies, this paper aims to transfer these findings to organizational learning.

Details

The Learning Organization, vol. 29 no. 6
Type: Research Article
ISSN: 0969-6474

Keywords

Open Access
Article
Publication date: 13 April 2022

Florian Schuberth, Manuel E. Rademaker and Jörg Henseler

This study aims to examine the role of an overall model fit assessment in the context of partial least squares path modeling (PLS-PM). In doing so, it will explain when it is…

5993

Abstract

Purpose

This study aims to examine the role of an overall model fit assessment in the context of partial least squares path modeling (PLS-PM). In doing so, it will explain when it is important to assess the overall model fit and provides ways of assessing the fit of composite models. Moreover, it will resolve major concerns about model fit assessment that have been raised in the literature on PLS-PM.

Design/methodology/approach

This paper explains when and how to assess the fit of PLS path models. Furthermore, it discusses the concerns raised in the PLS-PM literature about the overall model fit assessment and provides concise guidelines on assessing the overall fit of composite models.

Findings

This study explains that the model fit assessment is as important for composite models as it is for common factor models. To assess the overall fit of composite models, researchers can use a statistical test and several fit indices known through structural equation modeling (SEM) with latent variables.

Research limitations/implications

Researchers who use PLS-PM to assess composite models that aim to understand the mechanism of an underlying population and draw statistical inferences should take the concept of the overall model fit seriously.

Practical implications

To facilitate the overall fit assessment of composite models, this study presents a two-step procedure adopted from the literature on SEM with latent variables.

Originality/value

This paper clarifies that the necessity to assess model fit is not a question of which estimator will be used (PLS-PM, maximum likelihood, etc). but of the purpose of statistical modeling. Whereas, the model fit assessment is paramount in explanatory modeling, it is not imperative in predictive modeling.

Details

European Journal of Marketing, vol. 57 no. 6
Type: Research Article
ISSN: 0309-0566

Keywords

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