Draft Details
- Design requirements for marine structures asso...
- CSA Z276.1:25
- Legal Notice for Draft Standards
- Preface
- 0 Introduction
- + 1 Scope
- 1.1 General
- + 1.2 Applicability
- Figure 1
- Figure 2
- Figure 3
- Figure 4
- 1.3 Change of use of existing structures
- 1.4 Excluded from Scope
- 1.5 Terminology
- 2 Reference publications
- + 3 Definitions and abbreviations
- + 3.1 Definitions
- Figure 5
- 3.2 Abbreviations
- + 4 General requirements
- 4.1 General
- + 4.2 Planning and design for operations
- 4.2.1 General Design Planning
- 4.2.2 Quality Assurance
- 4.2.3 Planning for Design and Operations
- 4.2.4 Marine Terminal Operation Studies
- 4.2.5 Design Information for Operation
- + 4.3 Maritime environment
- 4.3.1 Data acquisition
- 4.3.2 Metocean considerations
- 4.3.3 Geotechnical
- 4.3.4 Climate change and sea level rise
- 4.4 Design service life
- + 4.5 Design codes and structural performance
- + 4.5.1 General
- 4.5.1.1 CSA Z276, NBCC, and Local Requirements
- 4.5.1.2 Applicable codes for LNG marine facilit...
- 4.5.1.3 CSA S6, Canadian Highway Bridge Design ...
- + 4.5.1.4 Eurocodes and British standards
- Table 2
- 4.5.1.5 United States standards
- 4.6 Seismic design
- 4.7 LNG Carrier data
- 4.8 Berth layout and orientation
- + 4.9 Design metocean parameters
- + 4.9.1 Vacant berth
- Table 3
- + 4.9.2 Berth in operational use
- 4.9.2.1 General
- 4.9.2.2 Operational considerations
- 4.9.2.3 Design considerations
- + 4.10 Accidental and abnormal events
- 4.10.1 General
- 4.10.2 Accident mitigation
- 4.10.3 Incidents with LNG carrier alongside
- + 5 Structural design of LNG marine facilities
- 5.1 General
- + 5.2 Loads
- 5.2.1 General
- 5.2.2 Dead load (D)
- 5.2.3 Live loads (L)
- 5.2.4 Buoyancy load (B)
- 5.2.5 Environmental loads: wind (W), wave (WV),...
- 5.2.6 Earth and tidal pressures on the structur...
- 5.2.7 Mooring line and breasting loads (M)
- 5.2.8 Berthing loads (Be)
- + 5.2.9 Earthquake loads (EQ)
- 5.2.9.1 General
- 5.2.9.2 Operating basis earthquake (OBE)
- 5.2.9.3 Safe shutdown earthquake (SSE)
- 5.2.9.4 Application of dead and live loads
- 5.2.10 Temperature loads (T)
- 5.2.11 Construction loads (CL)
- 5.2.12 Snow and ice loads (S)
- 5.2.13 Tsunami loads (Ts)
- 5.2.14 Process loads (P)
- 5.2.15 Accidental and abnormal loads
- 5.3 Load combinations
- + 5.4 Design considerations
- + 5.4.1 Non-structural components and pipeline su...
- 5.4.1.1 General
- 5.4.1.2 Integrated structure and topworks
- 5.4.1.3 Tie-down of topworks
- 5.4.1.4 Piping stress
- 5.4.2 Scour
- 5.4.3 Deck elevation
- 5.4.4 Corrosion
- 5.4.5 Exposure to LNG
- + 6 Seismic hazards and geotechnical
- + 6.1 General
- 6.1.1 Purpose
- 6.1.2 Applicability
- + 6.1.3 Integration of seismic hazard analyses an...
- 6.1.3.1 General
- 6.1.3.2 Phase A: Tasks associated with site cha...
- 6.1.3.3 Phase B: Tasks associated with dynamic ...
- 6.1.3.4 Phase C: Performance evaluation of slop...
- + 6.2 Site characterization
- 6.2.1 General
- + 6.2.2 Geologic and geotechnical site investigat...
- 6.2.2.1 General
- 6.2.2.2 Geologic and geotechnical surveys
- 6.2.2.3 Geohazards
- 6.2.2.4 Topography and bathymetric survey
- 6.2.3 Site-specific geotechnical information
- 6.2.4 Static and dynamic soil properties
- + 6.3 Seismic hazards and earthquake loads
- 6.3.1 General
- + 6.3.2 Specification of earthquake ground motion...
- 6.3.2.1 General
- 6.3.2.2 Earthquake ground motion parameters fro...
- 6.3.2.3 Directivity effects
- 6.3.2.4 Directionality effects
- 6.3.2.5 Earthquake ground motion parameters fro...
- 6.3.2.6 Selection of acceleration time historie...
- 6.3.2.7 Vertical earthquake motions
- + 6.3.3 Specification of earthquake ground motion...
- 6.3.3.1 General
- 6.3.3.2 Site classes
- 6.3.3.3 Site-specific evaluation of dynamic soi...
- 6.3.3.4 Code-based procedure for dynamic site r...
- 6.3.4 Design earthquake motion parameters at th...
- 6.3.5 Spectral acceleration for various damping...
- + 6.4 Cyclic degradation of soil
- 6.4.1 General
- 6.4.2 Pore pressure generation in sand and low ...
- 6.4.3 Cyclic degradation of moderate to high pl...
- 6.4.4 Post-cyclic loading shearing resistance o...
- + 6.5 Other geotechnical hazards
- 6.5.1 General
- + 6.5.2 Ground failure and stability of slopes
- 6.5.2.1 General
- 6.5.2.2 Flow failures
- 6.5.2.3 Lateral spreading
- 6.5.2.4 Landslides not associated with liquefac...
- 6.5.3 Post-cyclic settlement
- + 6.6 Analyses of slope stability and slope defor...
- 6.6.1 General
- + 6.6.2 Shear strength of soil
- 6.6.2.1 General
- 6.6.2.2 Highly Sensitive Clays or “Quick” Clays...
- 6.6.3 Analysis of stability and deformation for...
- + 6.7 Soil-structure interaction involving pile f...
- 6.7.1 General
- + 6.7.2 Pile foundations
- 6.7.2.1 General
- 6.7.2.2 Performance of piles during lateral loa...
- 6.7.2.3 Static and seismically-induced lateral ...
- 6.7.2.4 Axial pile load transfer (unit skin fri...
- 6.7.2.5 Effects of cyclic loading
- 6.7.2.6 Pile group effects
- 6.7.2.7 Down-drag forces on piles for static an...
- + 6.8 Performance of earth retention systems
- 6.8.1 General
- 6.8.2 Lateral earth pressures
- + 6.9 Tsunamis
- 6.9.1 General
- 6.9.2 Tsunami hazard and design event assessmen...
- 6.9.3 Tsunami design performance requirements
- 6.9.4 Tsunami alerts and response planning
- + 7 Mooring and berthing analysis
- 7.1 General
- 7.2 Layout of mooring structures and fender sys...
- + 7.3 Design criteria for mooring structures
- 7.3.1 General
- 7.3.2 Normal operating condition
- 7.3.3 Extreme condition
- 7.3.4 Accidental condition
- 7.4 Design Criteria for Multi-Buoy Mooring (MBM...
- + 7.5 Metocean and operational considerations in ...
- 7.5.1 General
- 7.5.2 Wind
- 7.5.3 Current
- 7.5.4 Waves
- 7.5.5 Seiche
- 7.5.6 Passing ships
- 7.5.7 Tsunami
- + 7.6 Mooring analysis
- 7.6.1 General
- 7.6.2 Non-linear characterization
- 7.6.3 Design limits
- 7.6.4 Dynamic mooring analyses
- + 7.7 Berthing
- 7.7.1 General
- 7.7.2 Fender selection
- 7.7.3 Berthing load
- 7.7.4 Hull pressures
- 7.8 Berth monitoring systems
Designation:CSA Z276.1:25
Source:CSA
Contact:[email protected]
Contact name:Genevieve Yip
Review start date:Apr 24, 2025
Review end date:Jun 23, 2025
Categories:Energy
Contact email:kristina.veri(at)csagroup.org
Draft Scope/Description:
General
This Standard applies to the engineering analysis and design of permanent marine structures that provide structural support to topworks, and that are used to moor/berth LNG carriers.
Applicability
This Document is applicable to the civil/structural components of the marine terminal, as shown in Figures 1 to 4, and includes the following:
a) shore-side abutment;
b) access trestle from shore to the loading platform;
c) loading platform;
d) berthing and mooring dolphins;
e) catwalks;
f) quay wall structures; and
g) multi-buoy moorings (spread moorings).
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