Nexus Network Journal Mechanics in Architecture In memory of Mar

This volume is dedicated to "Mechanics in Architecture", that is, the science of structural mechanics, including the behaviour of structures, internal forces, and deformation, as well as the development of new structural systems to resist thrusts as a res

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VOLUME 9, NUMBER 2 Autumn 2007

Nexus Network Journal Vol. 9 No. 2 Pp. 159-382 ISSN 1590-5896

CONTENTS Letter from the Editor 163

KIM WILLIAMS

In Memory of Mario Salvadori 165

KIM WILLIAMS and PIETRO NASTASI. Mario Salvadori and Mauro Picone: From Student and Teacher to Professional Fellowship

Mechanics in Architecture 185

FEDERICO FOCE. Milankovitch’s Theorie der Druckkurven: Good Mechanics for Masonry Architecture

211

SANTIAGO HUERTA. Oval Domes: History, Geometry, and Mechanics

249

MARCO GIORGIO BEVILACQUA. Ramparts in the Sixteenth century: Architecture, “Mathematics”, and Urban Design

263

DIRK VAN DE VIJVER. Tentare licet: The Theresian Academy Question on the Theory of Beams of 1783

281

OLIVIER BAVEREL and HOSHYAR NOOSHIN. Nexorades Based on Regular Polyhedra

Other Research 299

FRANS CERULUS. A Pyramid Inspired by Mathematics

311

YANNICK JOYE. Fractal Architecture Could Be Good for You

321

ANTONIA REDONDO BUITRAGO. Polygons, Diagonals, and the Bronze Mean

Geometer’s Angle 327

RACHEL FLETCHER. Dynamic Root Rectangles Part One: The Fundamentals

Didactics 363

SARAH MAOR and IGOR VERNOR. Mathematical Aspects in an Architectural Design Course: The Concept, Design Assignments, and Follow-up

Book Reviews 377

RACHEL FLETCHER. The Golden Section: Nature’s Greatest Secret by Scott Olsen

379

KIM WILLIAMS. Hardy Cross: American Engineer by Leonard K. Eaton

LETTER FROM THE EDITOR

M

ario Salvadori in many ways embodied architecture and mathematics, and certainly embodied the particular mental aperture necessary for interdisciplinarianism. I first met Mario in 1991, not long after I had moved to Tuscany. Like all architects in my generation, I had studied structural mechanics from his textbooks at university. When I moved to the province of Florence, I discovered that Salvadori was a rather common name; I wondered if it might be the same family. Once when I returned to New York I called him, though of course he didn’t know who I was, and explained where I was from. He invited me to come to his office that very day and have a sandwich in his office. That was how our friendship began, and it is characteristic of the kind of spontaneity, warmth and interest that Mario always exuded. Already in his 80s when we met, he was still as bright as a dollar, continuing his writing and teaching at the Salvadori Center. He encouraged me every step of the way as I organized the first Nexus conference for architecture and mathematics in 1996. He came, with his wife Carol, to that conference, in Fucecchio, not far from Legnaia where he was born, and gave the keynote address, entitled “Are There Any Relationships Between Architecture and Mathematics”. The next year he passed away. I have wished many times he could have seen how the Nexus conferences grew, and how the Nexus Network Journal was founded and prospered. This year is both the one-hundredth anniversary of Mario’s birth and the tenth anniversary of his death, and we are pleased to honor him with this issue. Pietro Nastasi and I tell part of his story