dự ứng lực

Học thuật
Thân thiện
dự ứng lực

Các kỹ sư sử dụng kỹ thuật dự ứng lực để chế tạo dầm cầu.

Definition

  1. Noun:

    • Prestress: A structural engineering technique where internal stresses are intentionally introduced into a material (like concrete) before it bears its service load. This is done to improve its performance by counteracting the stresses it will encounter during use.
    • Prestressing: The act or process of applying this initial, compensating stress.

  2. Adjective (often used in compounds):

    • Prestressed: Describing a material, typically concrete, that has undergone the prestressing process. Prestressed concrete is stronger and can span longer distances than ordinary reinforced concrete.
Usage Examples

  • Noun:

    • Kỹ thuật dự ứng lực cho phép xây dựng những cây cầu dài hơn. (The prestressing technique allows for the construction of longer bridges.)
    • Dự ứng lực là một bước tiến quan trọng trong xây dựng hiện đại. (Prestress is an important advancement in modern construction.)

  • Adjective:

    • Các dầm bêtông dự ứng lực đã được lắp đặt tại công trường. (The prestressed concrete beams were installed at the construction site.)
    • Đây là một cấu kiện dự ứng lực. (This is a prestressed component.)
Advanced Usage
  • The term is primarily technical and used in the fields of civil engineering, structural engineering, and construction. It is rarely used in everyday conversation outside of these contexts.
  • The process typically involves tensioning high-strength steel tendons (cables or bars) either before the concrete hardens (pre-tensioning) or after it has hardened (post-tensioning).
Variants and Related Words
  • Bêtông dự ứng lực / Bê tông dự ứng lực (n): Prestressed concrete. This is the most common compound term.
  • Cốt thép dự ứng lực (n): Prestressing steel, prestressing tendon.
  • Dầm dự ứng lực (n): Prestressed beam.
  • Ứng suất trước (n): An alternative technical term for prestress, meaning "pre-applied stress."
Synonyms
  • Prestress (n): The introduced internal stress.
  • Prestressing (n): The process.
  • Prestressed (adj): The state of the material.
Related Technical Terms
  • Cốt thép cường độ cao: High-strength steel (the material used for tendons in prestressing).
  • Căng trước: Pre-tensioning.
  • Căng sau: Post-tensioning.
  • Bêtông cốt thép: Reinforced concrete (a different, more common technique where steel merely reinforces concrete without pre-tensioning).
dự ứng lực

Các kỹ sư sử dụng kỹ thuật dự ứng lực để chế tạo dầm cầu.

  1. Prestressed
    • Bêtông dự ứng lực
      prestressed concrete