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在苏教版《技术与设计2》第一章,第二节,稳固结构探析中,在讨论结构的强度与结构的形状时,课本让我们回忆曾经见过的各种梁或各种框架,它们的构件的横截面形状各种各样,有工字型、十字形、长方形、L形、圆形、U形等。不同横截面形状的构件所能承受力的程度是不一样的。随后还有一个小实验。试验目的:测试用不同截面形状的构件做成的悬梁的强度。试验准备:剪贴周长相同、截面分别为三角形、圆形、正方形的纸
In the first chapter, section II, and the study of stable structure in the version of “Technology and Design 2” of the Sujiao edition, when discussing the strength of the structure and the shape of the structure, the textbook reminds us of the various beams or frameworks we have seen, The cross-sectional shape of their components vary, with I-shaped, cruciform, rectangular, L-shaped, round, U-shaped and so on. Different cross-sectional shape of the components can withstand the degree of force is not the same. Then there is a small experiment. Purpose of the test: Test the strength of a cantilever beam made of members of different cross-sectional shapes. Test Preparation: Scrap the same circumference, cross-section were triangular, circular, square paper