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Types and Components of a Marina 1

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LCC Architecture: Types and Components of a Marina

Marina Design and Architecture

Marina Design and Architecture

THE MARINA

Marina’s main role provide shelter from wind, waves and swell of passing craft; access to moorings at all states of tide with space for maneuvre; tie-up points for boats with services, eg water, el, tele­phone, television, refuse collection, fire fighting, sanitation, public address system; sanitary needs and amenities for yachtsmen, e.g. wc, sho, changing and drying rm, entertaining, sporting activities, shopping; car parking; equipment for launching, lifting, maneuvring, repairing, maintain­ing boats; other bldg directly related to boating.

TYPES OF DEVELOPMENT

Land to water relationship ->(1): land locked ->(4), built-in ->(5): semi-recessed, offshore, island (constructed in open water: special case.

Tidal situation:

Non-tidal: variations of water level ^ 1000; usually easy for people and, trolleys and simple connections between onshore and offshore service systems;

Tidal: substantial changes of water level; difficult connection between pontoons and land for people and services; construction difficulties almost inevitable.

Site selection factors: legal problems; transport systems; potential for future extension; construction options and methods; geological, hydraulic, climatic; soil and sub-soil; orientation, physical features, erosion, possibility of flooding; engineering network on shore; materials stability; tides, currents, navigational requirements; pollution control; labor sources; effect of marina on existing environment during construction period and after completion.

Marina Docks and Yacht Parking

Marina Docks and Yacht Parking

OFFSHORE BOAT HARBOR COMPONENTS

Area needed: craft sizes vary: 14.8-21.3 m (USA 4.3-24.4 m), beam 1.8-6.0 m (USA 2-6 m); areas of water calculated on basis of planned number and size of craft moored, pontoon layout, types of berth.

Depth of water: min 600 (USA 610) plus max draft of vessel at lowest astronomical tide, 300 reserved for stilting, 300 for clearance. If too shallow at lowest tide dredging necessary.

Channel: leading to entrance 2= 20-30 m wide; main channel within harbor area depends on number and sizes of craft passing through at any 1 time, min w 18 m.

Entrance: protection required from ingress (wave energy to be absorbed before choppy conditions arise in yacht basin) —»(2); suitable protection: spending beaches, rocks or concrete blocks molded to appropriate shapes, piles.

Pontoon layouts: well selected layout very important; main choice limited to pontoons stretching from a land, b breakwaters, c floating elements -»(3).

Berth types —>(6): a stern to quay, jetty or pontoon bows to piles (poor for embarking); b same but bows moored to anchors or buoys (not for tidal marinas); c alongside finger piers or catwalks, 1 craft each side (convenient for embarking); d alongside quays, jetties or pontoons, single banked; e same up to 3 or 4 abreast (disadvantage of yachtsmen on outer climbing over inner craft); f star finger.

 

See Part 2 of Design of Marinas

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Author: Archian

An Architect, Blogger and Strategic Thinker

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