从草图到建筑.ppt

从草图到建筑 -- 设计的演进过程 东馆 1）华盛顿特区地图 全图 东馆 位置 2）挑战与问题 三个来自地段的难题——The architect faced several challenges: (1)The new building had to fit an irregularly shaped, trapezoidal site;(2) conform to the monumental scale of the Mall; and (3)harmonize with John Russell Popes classicizing West Building, completed in 1941. 设计的重点和过程——During the laborious design process, Pei and a small team of young architects explored many creative possibilities for the buildings plan, exterior profile, and roofing of the great atrium. The drawings and models shown in this program illustrate various phases in the evolution of the final design. They were selected from more than 150 design drawings and models for the project that I. M. Pei Partners gave to the archives of the National Gallery of Art in 1986. 3）周围建筑物的图片及其他 西馆- the west building 林荫大道- the Mall 草图 东馆 §（二）构思 1）早期草图 神奇的对角线——In a moment of insight, I. M. Pei solved the problem of the sites irregular shape by dividing it into an isosceles triangle and a smaller right triangle. He later recalled, I sketched a trapezoid on the back of an envelope. I drew a diagonal line across the trapezoid and produced two triangles. That was the beginning. 快速研究城市文脉（the urban context）之后I.M.pei所作的图示, 东馆的轮廓和尺度与西馆、国会山的关系 I. M. Pei. Early conceptual sketch for building profile with Capitol, National Gallery of Art East Building, fall 1968. Pen on back of receipt 2）再探索--Exploration 潜在的因素——During the fall of 1968 and winter of 1969, Pei and his design team explored the underlying geometry governing the structure of the new building. Many of their ideas are recorded in quick working studies, some relating closely to Peis initial plan based on two triangles and others testing alternative possibilities. Each study may reflect only brief discussion, but taken together they provide insight into the design process. 研究等腰三角形的内在几何特性，并