Lag Bolts in Withdrawal

 

NDS table 11.2A

w = reference withdrawal design value per inch of thread penetration

p_w = thread penetration = thread length - tapered tip length

W = w p_w

 

 

Base Conditions

• 10-year duration
• initially dry and remains dry
• normal temperature
• penetrates side grain

 

 

End Grain Factor C_eg

avoid end grain connection where possible

C_eg = 0.75