• Codes
  • Features

    Features Overview

    Go to features
    Reference

    Reference.

    A reliable and up-to-date source of codes.
    Research

    Research.

    Rapidly and efficiently calculate project parameters.
    Collaboration

    Collaboration.

    Get everyone on the same page and streamline code research.
    Workflows
    Architects
    Architects
    General Contractors
    General Contractors
    Building Official & Plans Examiners
    Building Official & Plans Examiners
    Inspectors
    Inspectors
    Owners
    Owners
    Subcontractors
    Subcontractors
    Code Consultants
    Code Consultants
  • Pricing
  • Login
  • Sign Up
Sign Up
Login
  • Code Library
  • Features
  • Pricing
  • About
  • Careers
  • Help
  • Contact
  • Terms
  • Privacy
Sign Up
Upgrade to Premium
Code calculators: Code Calculators automatically generates a detailed list of requirements.
REFERENCE
Amendment Styling
Industry-leading search
Code diagrams
RESEARCH
Code calculators
Filter by topic
Code compare
Code sheet exports
COLLABORATION
Team projects
Bookmarks
Comments
START 2 WEEK FREE TRIAL
Have an account? Sign in
// CODE SNIPPET

3103F.10 Mooring Hardware (N/E)

California Building Code 2016 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3103F Structural Loading Criteria > 3103F.10 Mooring Hardware (N/E)
JUMP TO FULL CODE CHAPTER
Mooring hardware shall include but not be limited to bollards, quick release hooks, other mooring fittings and base bolts. All mooring hardware shall be clearly marked with their safe working loads (or allowable working loads) [3.7]. The certificate issued by the manufacturer normally defines the safe working loads of this hardware.

3103F.10.1 Quick Release Hooks

For new MOTs or berthing systems, a minimum of three quick-release hooks are required for each breasting line location for tankers greater than or equal to 50,000 DWT. At least two hooks at each location shall be provided for breasting lines for tankers less than 50,000 DWT. Remote release may be considered for emergency situations.
All hooks and supporting structures shall withstand the minimum breaking load (MBL) of the strongest line with a safety factor of 1.2 or greater. Only one mooring line shall be placed on each quick release hook (N/E).
For multiple quick release hooks, the minimum horizontal load for the design of the tie-down shall be:
(3-21)
Fd = Minimum factored demand for assembly tie-down.
n = Number of hooks on the assembly.
The capacity of the supporting structures must be larger than Fd (See Section 3107F.5.3).

3103F.10.2 Other Fittings

Other fittings include cleats, bitts and bollards.
If the allowable working loads for existing fittings are not available, the values listed in Table 31F-3-13 may be used for typical sizes, bolt patterns and layout. The allowable working loads are defined for mooring line angles up to 60 degrees from the horizontal. The combination of vertical and horizontal loads must be considered.
TABLE 31F-3-13
ALLOWABLE WORKING LOADS
TYPE OF FITTINGSNO. OF BOLTSBOLT SIZE (in)WORKING LOAD (kips)
30 in. Cleat411/820
42 in. Cleat611/840
Low Bitt1015/860 per column
High Bitt1013/475 per column
441/2 in. Fit. Bollard413/470
441/2 in. Fit. Bollard821/4200
48 in. Fit. Bollard1223/4450
Note: This table is modified from Table 6-11 of UFC 4-159-03 [3.10]

3103F.10.3 Base Bolts

Base bolts are subjected to both shear and uplift. Forces on bolts shall be determined using the following factors:
  1. Height of load application on bitts or bollards.
  2. Actual vertical angles of mooring lines for the highest and lowest tide and vessel draft conditions, for all sizes of vessels at each particular berth.
  3. Actual horizontal angles from the mooring line configurations, for all vessel sizes and positions at each particular berth.
  4. Simultaneous loads from more than one vessel.
For existing MOTs, the deteriorated condition of the base bolts and supporting members shall be considered in determining the capacity of the fitting.

Related Code Sections


3103F.10 [SLC] Marine Oil Terminals, Mooring Hardware (N/E)
factor of 1.2 or greater. Only one mooring line shall be placed on each quick release hook (N/E). For multiple quick release hooks, the minimum horizontal ...
California Building Code 2016 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3103F Structural Loading Criteria > 3103F.10 Mooring Hardware (N/E)
3105F.8 [SLC] Marine Oil Terminals, Mooring Hardware (N/E)
) of the strongest line with a safety factor of 1.2 or greater. Only one mooring line shall be placed on each quick release hook (N/E ...
California Building Code 2019 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3105F Mooring and Berthing Analysis and Design > 3105F.8 Mooring Hardware (N/E)
3105F.8.1 [SLC] Marine Oil Terminals, Quick Release Hooks
) of the strongest line with a safety factor of 1.2 or greater. Only one mooring line shall be placed on each quick release hook (N/E ...
California Building Code 2019 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3105F Mooring and Berthing Analysis and Design > 3105F.8 Mooring Hardware (N/E) > 3105F.8.1 Quick Release Hooks
3105F.8.2 [SLC] Marine Oil Terminals, Other Fittings
are not available, the values listed in Table 31F-5-4 may be used for typical sizes, bolt patterns and layout. The allowable working loads are defined for mooring ...
California Building Code 2019 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3105F Mooring and Berthing Analysis and Design > 3105F.8 Mooring Hardware (N/E) > 3105F.8.2 Other Fittings
3105F.8.3 [SLC] Marine Oil Terminals, Base Bolts
on bitts or bollards. Actual vertical angles of mooring lines for the highest and lowest tide and vessel draft conditions, for all sizes of vessels ...
California Building Code 2019 (Vol 1 & 2) > 31F [SLC] Marine Oil Terminals > 3105F Mooring and Berthing Analysis and Design > 3105F.8 Mooring Hardware (N/E) > 3105F.8.3 Base Bolts
Help Contact Us Privacy Terms
Code Calculators
Code Calculators
Code calculators automatically generate a detailed list of requirements.
Code diagrams
Code diagrams
Unpack the code through illustrations and descriptions.
Shared projects
Shared projects
Projects provide a dedicated space to collaborate on code research.
Code Compare
Code Compare
Highlight differences between any two building codes.
Search
Search
Don't miss relevant code. Quickly locate sections across your jurisdiction.
Code sheet exports
Code sheet exports
Generate a code sheet that integrates with your drawing set.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
VISIT PRICING
UpCodes Premium
Leverage the full code compliance platform.
START 2 WEEK FREE TRIAL PRICING