Which standard provides bolt tightening specifications for structural steel connections?

Which standard provides bolt tightening specifications for structural steel connections?

• A. OSHA
• B. AISC
• C. ANSI
• D. ASME

Answer: (B)

Bolt tightening specifications for structural steel connections come from the organization that sets the standards for how structural steel is designed and built. The American Institute of Steel Construction (AISC) provides the official bolt tightening procedures and tensioning values used in field connections, including methods like snug-tight, turn-of-nut, and, for slip-critical joints, the required pretensioning. Their Steel Construction Manual covers the proper installation of bolts, the types of bolts used (such as high-strength bolts), and the required pretension levels for different connection types to ensure the joints behave as intended under loads. OSHA focuses on safety regulations, ANSI is a standards-coordination body rather than a source of specific bolt-tightening procedures for structural connections, and ASME deals with codes for mechanical systems and pressure vessels. So the standard that provides bolt tightening specifications for structural steel connections is AISC.

Bolt tightening specifications for structural steel connections come from the organization that sets the standards for how structural steel is designed and built. The American Institute of Steel Construction (AISC) provides the official bolt tightening procedures and tensioning values used in field connections, including methods like snug-tight, turn-of-nut, and, for slip-critical joints, the required pretensioning. Their Steel Construction Manual covers the proper installation of bolts, the types of bolts used (such as high-strength bolts), and the required pretension levels for different connection types to ensure the joints behave as intended under loads. OSHA focuses on safety regulations, ANSI is a standards-coordination body rather than a source of specific bolt-tightening procedures for structural connections, and ASME deals with codes for mechanical systems and pressure vessels. So the standard that provides bolt tightening specifications for structural steel connections is AISC.