V2EX i-section

I-Section

Definition 定义

I-section 指“工字形截面/工字钢截面”:一种横截面形状类似英文字母 I 的结构构件截面(常见于钢梁、钢柱),通常由翼缘(flange)腹板(web)组成,能在承受弯矩时高效利用材料。(在不同地区也常与 I-beam 互用;另有与之相近的 H-section 等。)

Pronunciation 发音

/a sekn/

Examples 例句

The roof is supported by an I-section steel beam.
屋顶由一根工字形截面的钢梁支撑。

Engineers chose an I-section because it provides high bending strength with less weight than a solid bar.
工程师选择工字形截面,是因为它在重量更小的情况下能提供更高的抗弯强度,比实心杆更省材料。

Etymology 词源

I-section 属于“按外形命名”的工程术语:因其截面形状像大写字母 I 而得名。section 在工程语境中常指“(构件的)截面/型材截面”。

Related Words 相关词

Literary Works 文学/著作

  • Steel Construction Manual(AISC《钢结构手册》)
  • Structural Steel Design(钢结构设计教材常见标题)
  • Mechanics of Materials(《材料力学》类经典教材中常见该术语)
  • Eurocode 3: Design of steel structures(EN 1993,《欧标3:钢结构设计》相关文件中常见)
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