Updating Numerical Models of Masonry Arch Bridges by Operational Modal Analysis

This article aims at presenting and discussing the strategies for updating the finite element numerical modeling of stone masonry arch bridges using operational modal analysis. The study comprehended three bridges: two old ones, the St. Lázaro and the Lagoncinha bridges, and a recently constructed bridge in Vila Fria, Portugal. Updating of the bridge models is performed by comparing the numerical and experimental modal parameters. Three-dimensional detailed numerical models are used to perform modal analysis of the bridges. Experimental modal identification of the bridges is based on the measurement of their acceleration responses during normal operation. The assigned material properties are also based on available results obtained from in situ and laboratory tests and on the results of visual inspection and historical research carried out for both old bridges.     

Planning Cultures and Histories: Influences on the Evolution of Planning Systems and Spatial Development Patterns

Abstract

This special issue addresses the influences of planning cultures and histories on the evolution of planning systems and spatial development. As well as providing an international comparative perspective on these issues, the collection of articles also engages in a search for new conceptual frameworks and alternative points of view to better understand and explain these differences. The articles focus on three main aspects: the change in planning systems and its impact on spatial development patterns; the interrelationship between planning cultures and histories from a path-dependency perspective; and the variations in physical development patterns resulting from different planning cultures and histories. Papers from different parts of the European continent present evidence at different scales to illustrate these aspects. In all cases, the specific combinations of political, ideological, social, economic and technological factors are important in determining urban and regional planning trajectories as well as spatial development patterns.     

Feminist geopolitics,everyday death,and the emotional geographies of Dang Thuy Tram

Women's everyday experiences in war remain occluded; moreover, the bodily impacts of war remain hidden, masked by masculinist accounts of warfare that too often glorify heroic male combatants. In this article, we contribute, first, to the ongoing project to understand violence in everyday life and, second, to the understanding, specifically, of women's experiences in warfare. We do so through a reading of the diaries of Dang Thuy Tram, a female Vietnamese doctor who lived and died in the Vietnam War. By drawing on feminist geopolitics, coupled with the insights from emotional geographies – and specifically, those of love – we focus on two main themes: the emotional transformation of death and life, and the care of life amidst pervasive death. We conclude that an emotionally grounded feminist geopolitics is necessary to challenge masculinist accounts that normalize, naturalize, and glorify war.