DESIGN OF THE PORT OF LOS ANGELES PIER 400 CRUDE OIL TERMINAL.pdf

8/14/2019 DESIGN OF THE PORT OF LOS ANGELES PIER 400 CRUDE OIL TERMINAL.pdf

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Structural Design of the Marine Terminal

Prevention First 2006

September, 2006

Long Beach, CA

POLA / Pacific Energy Berth 408

Crude Oil Import Terminal Design

Angel Lim, S.E. & John Posadas, P.E.


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Unique Features

1st New Oil Terminal Designed to MOTEMS

Designed to meet new MOTEMS and POLASeismic Code

81 ft of water depth

Designed to accommodate VLCCs 3-D analysis between structure and pipes

STRUCTURAL DESIGN OF THE MARINE TERMINAL


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Facility Description

POLA Map Faults

Structural Components



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POLA Map



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POLA Map



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Faults in Southern California


POLA


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Structural Component - Unloading Platform


60 ft wide x 100 ft long x 4 ft deep reinforced

concrete slab

12-48 steel piles

Steel piles rigidly connected to underside of slab

4-16 unloading arms


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Structural Component - Breasting Dolphin


4-40 ft sq. x 4 ft deep reinforced concrete slab

4-48 steel piles

Piles rigidly connected to underside of slab


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Structural Component - Mooring Dolphin


6-25 ft sq. x 5 ft deep reinforced concrete slab

4-54 battered steel piles

Piles rigidly connected to underside of slab


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Structural Component - North & South Trestles


244 ft long x 22 ft wide South Trestle

33 deep pre-cast concrete box girders

Combined cast-in-place and pre-cast

concrete bent caps at 40 ft o.c.

2-42 steel piles at each bent

214 ft long x 37 ft wide North Trestle

33 deep pre-cast concrete box girders

Combined cast-in-place and pre-cast

concrete bent caps at 40 ft o.c.

2-42

steel piles at each bent


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Structural Design per MOTEMS

MOTEMS Risk Classification Seismic Performance Criteria

Minimum Required Analytical Procedure



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MOT Risk Classification

Purpose is to establish minimum seismic analysis and structural performance.

Structural performance is evaluated at a two level criteria:Level 1 and Level 2

MOTEMS risk classification (Table 31-F-4-1)

All new MOTS are classified as high risk.

1. Exposed oil 1200 bbls



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MOTEMS Seismic Performance Criteria

Design Earthquake Motions:

Level 1

Minor or no structural damage

Temporary or no interruption in operations

Level 2

Controlled inelastic structural behavior with repairable damage

Prevention of structural collapse

Temporary loss of operations, restorable within months

Prevention of major spill ( 1200 bbls)

Seismic Performance Criteria:

Select: High risk classification:

Seismic Performance Level: Level 1 Level 2

Probability of Exceedance: 50% in 50 years 10% in 50 years

Return Period: 72 years 475 years



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Response Spectra


POLA CLE

MOTEMS

LEVEL 2


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MOTEMS Minimum Required Analytical Procedures

Minimum Required Analytical Procedures:

Select: High / Moderate:

Configuration: Irregular

Substructure Material: Concrete/Steel

Displacement Demand Procedure: Linear Model

Displacement Capacity Procedure: Non Linear Static



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Minimum Analytical Procedure


Minimum Analytical Procedure

Design Approach

Basic Classif ication

Seismic Performance

LevelDisplacement Based

Design

Develop

Computer Model

Calculate DisplacementDemand

Calculate DisplacementCapacity

Check

Pile Shear

Design for Shear

Key Forces

Check

P-


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Displacement Capacity Flow Chart


Develop 2-D

Models

Pile P-M Curve

Non-linear Hinge

Properties

Geometry

Section Properties:

E, A and Ieff

Soil Springs Seismic Mass

Lower Bound Upper Bound

Pile Moment-

Curvature Curves


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Seismic Mass


10% Live Load Added Dead Load

Dead Load

Pile Mass


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SAP2000 2-D Model Layout


Typical top

hinge

Pile

p-y soilsprings

Deck

Typical in-

ground hinge

1 2 3

45

6


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Pushover Curves

Total

0

50

100

150

200

250

300

0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0

Displacement, inches

Base

Shear,

kips


Level 1

Level 2

Base

Shear,

kips

Displacement, inches


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Displacement Demand Flow Chart


Displacement Demand =

Transverse Displacement

Demand x DMF

Calculate

Displacement Demand

Initial Stiffness Method

For Initial Check

Substitute Structure

Method (Iterative)


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Displacement Demand Flow Chart


Initial Stiffness Methodfor in itial check

Calculate

Displacement Demand

Initial stiffness

from pushover curve

Damping = 5%

gK

WT 2=

Read displacement demand

form displacement

spectra for 5% damping


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Demand-to-Capacity Ratio (DCR)

Demand x DMF / Capacity < 1.0

DCR < 1.0



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Mooring & Berthing per MOTEMS

Mooring/Berthing Risk Classification Mooring Analysis

Berthing Analysis



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MOTEMS Mooring/Berthing Risk Classification


Based on site specific parameters:

1. Wind

2. Current

3. Hydrodynamic effects of passing vessels

4. Change in vessel draft


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Mooring Analysis

Load Generated By Wind

Wave

Passing Vessel Seiche

Tsunami


MOTEMS Ref. 3105F.3.1

3105F.3.1

3105F.3.2 3105F.3.3

3105F.3.4


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MOTEMS Windspeed Conversion Factor



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MOTEMS Current Velocity Correction Factor



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Berthing Analysis

Fender Design

Berthing Energy Demand

Evessel = (W*Vn2/g)

Berthing Energy Capacity

Efender = Cb*Cm*Evessel

Tanker Contact LengthLc = 2r Sin

Longitudinal or Vertical Berthing ForcesF = N


MOTEMS B thi V l it Sit C diti


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MOTEMS Berthing Velocity, Site Conditions

& Max. Berthing Angle Tables


St t l D t il


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Structural Details

Ship Design Parameters

General Layout & Elevation

Mooring Layout for VLCC Section at Unloading Platform

ULP Rigid Frame Joint Detail

ULP Reinforcing MD Deck & Pile Reinforcing

MD Deck Reinforcing Plans

N & S Trestle Box Girder Layout N & S Pier Layout & Cap Bm Details



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G l L t Pl & W t id El ti


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General Layout Plan & Waterside Elevation


Mooring Layout for VLCC


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Mooring Layout for VLCC


Section at Unloading Platform


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Section at Unloading Platform


North & South Trestle Box Girder Layout


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North & South Trestle Box Girder Layout



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Project Photos


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Project Photos


Project Photos


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Project Photos



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Documents

DESIGN OF THE PORT OF LOS ANGELES PIER 400 CRUDE OIL TERMINAL.pdf