볼트 규격에서 분모로 8, 16, 32 같은 숫자를 사용하는 이유

 볼트 규격에서 분모로 8, 16, 32 같은 숫자를 사용하는 이유는 인치 단위를 작은 단위로 분할할 때 쉽게 계산할 수 있도록 만든 관습에 기인합니다. 다음과 같은 이유가 있습니다: 이진수 분할: 1인치를 2, 4, 8, 16, 32 등으로 나누면 각 분할은 정확한 반으로 나눠지므로 측정과 계산이 편리해집니다. 예를 들어 1/2, 1/4, 1/8, 1/16, 1/32처럼 한 단계씩 나누기 쉬워지죠. 산업 표준화: 미국과 영국에서 인치 단위를 기반으로 볼트와 나사의 크기를 표준화했기 때문에, 1인치를 쉽게 나눌 수 있는 분수 단위(2의 배수)를 사용하게 되었습니다. 특히 미국에서 분수 단위를 채택하면서 관습이 되었고, 볼트 및 나사의 규격에 정착하게 되었습니다. 제작 및 정밀도 용이성: 제조 시에도 1/8, 1/16 등의 단위는 다양한 크기의 볼트 및 나사를 만들 때 용이합니다.

Eurocode Code taxonomy

 

EN

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM



1990 Eurocode 0 : Basis of structural design

1990-AnnexA2 : Application for bridges (Normative)


1991 Eurocode 1: Actions on structures

1991-1-1 : Part 1-1: General actions — Densities, self-weight, imposed loads for buildings

1991-1-2 : Part 1-2: General actions — Actions on structures exposed to fire

1991-1-3 : Part 1-3: General actions — Snow loads

1991-1-4 : Part 1-4: General actions — Wind actions

1991-1-5 : Part 1-5: General actions — Thermal actions

1991-1-6 : Part 1-6: General actions — Actions during execution

1991-1-7 : Part 1-7: General actions — Accidental actions

1991-2 : Part 2: Traffic loads on bridges

1991-3 : Part 3: Actions induced by cranes and machinery

1991-4 : Part 3: Part 4: Silos and tanks


1992 Eurocode 2: Design of concrete structures

1992-1-1 : Part 1-1: General rules and rules for buildings

1992-1-2 : Part 1-2: General rules — Structural fire design

1992-2 : Part 2: Concrete bridges — Design and detailing rules

1992-3 : Part 3: Liquid retaining and containment structures

1992-4 : Part 4: Design of fastenings for use in concrete


1993 Eurocode 3: Design of steel structures

1993-1-1 : Part 1-1: General rules and rules for buildings

1993-1-2 : Part 1-2: General rules — Structural fire design

1993-1-3 : Part 1-3: General rules — Supplementary rules for cold-formed members and sheeting

1993-1-4 : Part 1-4: General rules — Supplementary rules for stainless steels

1993-1-5 : Part 1-5: Plated structural elements

1993-1-6 : Part 1-6: Strength and Stability of Shell Structures

1993-1-7 : Part 1-7: Plated structures subject to out of plane loading

1993-1-8 : Part 1-8: Design of joints

1993-1-9 : Part 1-9: Fatigue

1993-1-10 : Part 1-10: Material toughness and through-thickness properties

1993-1-11 : Part 1-11: Design of structures with tension components

1993-1-12 : Part 1-12: Additional rules for the extension of EN 1993 up to steel grades

S 700 

1993-2 : Part 2: Steel bridges

1993-3-1 : Part 3-1: Towers, masts and chimneys — Towers and masts

1993-3-2 : Part 3-2: Towers, masts and chimneys — Chimneys

1993-4-1 : Part 4-1: Silos

1993-4-2 : Part 4-2: Tanks

1993-4-3 : Part 4-3: Pipelines

1993-5 : Part 5: Piling

1993-6 : Part 6: Crane supporting structures


1994 Eurocode 4: Design of composite steel and concrete structures

1994-1-1 : Part 1-1: General rules and rules for buildings

1994-1-2 : Part 1-2: General rules — Structural fire design

1994-2 : Part 2: General rules and rules for bridges


1995 Eurocode 5: Design of timber structures

1995-1-1 : Part 1-1: General — Common rules and rules for buildings

1995-1-2 : Part 1-2: General — Structural fire design

1995-2 : Part 2:  Bridges


1996 Eurocode 6: Design of masonry structures

1996-1-1 : Part 1-1: General rules for reinforced and unreinforced masonry structures

1996-1-2 :  Part 1-2: General rules - Structural fire design

1996-2 : Part 2: Design considerations, selection of materials and execution of masonry

1996-3 : Part 3: Simplified calculation methods for unreinforced masonry structures


1997 Eurocode 7: Geotechnical design

1997-1 : Part 1: General rules

1997-2 : Part 2: Ground investigation and testing


1998 Eurocode 8: Design of structures for earthquake resistanc

1998-1 : Part 1: General rules, seismic actions and rules for buildings

1998-2 : Part 2:  Bridges

1998-3 : Part 3: Assessment and retrofitting of buildings

1998-4 : Part 4: Silos, tanks and pipelines

1998-5 : Part 5: Foundations, retaining structures and geotechnical aspects

1998-6 : Part 6: Towers, masts and chimneys


1999 Eurocode 9: Design of aluminium structures

1999-1-1 : Part 1-1: General structural rules

1999-1-2 : Part 1-2: Structural fire design

1999-1-3 : Part 1-3: Structures susceptible to fatigue

1999-1-4 : Part 1-4: Cold-formed structural sheeting

1999-1-5 : Part 1-5: Shell structures



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