Structural Emergence: Architectural and Structural Design Collaboration at SOM

At Skidmore, Owings & Merrill (SOM) there is a strong culture of collaboration between architects and engineers, and innovation in computational technologies - the firm fervently embraced the computer over 50 years ago. Here a cross-disciplinary team from SOM, architects Keith Besserud and Neil Katz and structural engineer Alessandro Beghini , describe their current work on FE algorithms and how this has informed recent projects.     

Virtual Corpses,Figural Sections and Resonant Fields

The ‘figural section’ is one of the most potent but under used forms of architectural communication. It enables slices, extrusions, fragments and surfaces of buildings to become the media of the non-expressive and deadpan. Here Sean Griffiths of FAT looks at Venturi Scott Brown's influence in the development of the figural section and how it has evolved into a key trope in his practice's own work. Copyright © 2011 John Wiley & Sons, Ltd.     

修正Graham模型描述蠕变全过程的探讨

通过分析P91钢在625℃下不同应力水平下的单轴蠕变断裂的实验数据,对P91钢在625℃下的单轴蠕变实验现象应用唯象分析的方法进行数学描述,并在ANSYS有限元中的Graham蠕变模型的基础上,提出了对ANSYS有限元软件中的Graham蠕变模型进行参数上的修正,修正后的Graham蠕变模型能比较精确地描绘出金属材料单轴蠕变过程的第二、第三阶段特性,并应用该修正的Graham蠕变模型对P91钢在625℃下的不同应力水平进行了单轴蠕变过程的数值模拟,ANSYS有限元单轴蠕变模拟数据和单轴蠕变实验数据吻合较好。这说明修正的Graham蠕变模型模拟金属单轴蠕变过程的合理性,该模型可以作为ANSYS有限元软件模拟多轴蠕变过程的蠕变法则,为ANSYS有限元软件在材料非线性方面(金属材料蠕变分析)的二次开发提供了理论基础。     

The Cinema as Secular Temple: Ethos,Form and Symbolism of the Capitol Theatre

Since the tetraktys is the most important symbol of the Pythagorean school and system, its prominence in the form and decoration of the Capitol Theatre, Melbourne (Australia), suggests that this building was designed in the Pythagorean spirit. The tetraktys encodes the fundamental proportions or harmonies of the musical scale (1:2, 2:3, 3:4) and so one would expect to find these same proportions used in the form and decoration of the Capitol as well as evidence of relevant musical thought and inspiration in the writings of its designers, Walter Burley and Marion Mahony Griffin. Graham Pont explains the significance of the tetraktys in the Pythagorean tradition, identifies the Capitol as a “secular temple” in form and ethos, and indicates possible contemporary influences on the theatre’s remarkable motif of the “Crystal Tetraktys” and other symbolism.     

基于凸包求解的简单多边形方向判断新算法

Graham ScanA求解简单多边形凸包算法简洁高效,但是对于未确定方向的简单多边形,该算法需设定一个方向求解其凸包。提出一种新的算法,该算法通过利用凸包求解的Graham ScanA算法来判断简单多边形的方向。算法取得了较好的实用效果。     

基于Direct3D电子海图区域绘制方法

介绍了一种基于Direct3D在海图中绘制随机凸边形半透明效果的方法。首先分析采取依次填充多边形顶点缓冲区的方法引起的问题,并针对此问题介绍了格雷厄姆扫描法（Graham算法）构建凸多边形,最后阐述了整个软件的处理流程、场景渲染及其实现效果。     

Excessive Resolution: From Digital Streamlining to Computational Complexity

Is the term ‘ornament’ set to become redundant in architecture? With the sinuous lines produced by CNC milling machines giving way to the ever more weirdly figural products of algorithmically controlled 3D printing, decoration is increasingly an integral part of form, rather than supplementary to it. Mario Carpo – Reyner Banham Professor of Architectural Theory and History at the Bartlett School of Architecture, University College London – investigates this voxellisation, and how it drives architecture beyond human comprehension.     

Clarence Henry Graham: American Psychological Association Distinguished Scientific Contribution Award.

Reports that Clarence Henry Graham is one of the recipients of the 1966 American Psychological Association Distinguished Scientific Contribution Award. His citation reads: "For his studies of afferent and central mechanisms of behavior and of psychological methods. His early work with collaborators led to the first recording of electrical activity in single nerve fibers in the visual system. His behavioral analyses of the psychophysical methods, his quantitative measurements of the acquisition, extinction, and spontaneous recovery of the simple running response, his studies of area-intensity and intensity-time relations in visual psychophysics, his investigations of space perception, particularly stereoscopic cues and monocular movement parallax, and, most recently, his research on color vision and color blindness are models of effective, quantitative research. Singly they are important; in toto they are an impressive contribution to human enlightenment." A personal biography is also included, along with a listing of his scientific writings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)