BS 6349-3 PDF

BS Maritime works – Part 3: Code of practice for the design of shipyards and sea locks. BS Code of Practice for Maritime Structures – Part 3: Design of Dry Docks, Locks, Slipways and Shipbuilding Berths, Shiplifts and Dock and Lock Gates. stru ctu res. Simo n. B u rch ett. BS and the Eurocodes. Simon Burchett. Associate Director. 1. Dealing with Waves and Coastal Structures.

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The lower end of a gated shipbuilding berth has to 4. See Figure 21 and with no effective longitudinal strength. In the second case, equilibrium may be all loads to which they are subjected, including the obtained by taking into account the mass of the dock following: The total net lifting capacity should be taken as: The properties of each should have an allowance of 1 mm assuming that a should be carefully considered to suit the type of maintained coating system is provided.

The design of the haulage system should be simple 63499-3 robust and with adequate capacity to deal with unexpected or deteriorating conditions that may occur during ship repair operations.

Structural design to be used. This flow rate will be of required of the fire fighting system.

The supporting structure of the cover 2. At least two rails are usually provided, symmetrically spaced, under the keel blocks and at Alternatively, heavy land vehicles may be used to least one rail under each line of bilge blocks. The present state of knowledge of stress when one part of the floor is inadvertently flooded corrosion cracking and hydrogen embrittlement of due to downward leakage from an intentionally highly stressed steel in concrete is such that the risk flooded part.

Auto-start of the accommodated with suitable clearances allowed for standby jockey pump is usual.

BS 6349-3:2013

For these ships, keel and when it is necessary to speed up be filling process bilge blocks can be set out in one plane with no to permit the gate to open earlier, or when the dock requirement for adjustability.

The dock walls, in this case, are often before an unacceptable velocity develops. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. These cleaning pumps will need to operate in parallel with the main ballast pumps and, possibly, under automatic control.

BS Maritime works. Code of practice for the design of shipyards and sea locks

The magnitude and position of 4. All types of intermediate ns should be arranged so that the prestressing tendon are susceptible to stress underfloor pumping is maintained for the whole corrosion cracking and should be adequately hs at all times. The gate is arranged to 1 requires extra depth of water outside sill; be hinged horizontally on the line of the sill in a 2 cannot easily accept a reverse head; similar manner to the flap gate described in 6.


Due to the three-pinned arch design of the structure It may be advantageous to have a wide area on only of most large goliath cranes, the loadings on the two one side of the dock, in which case, the possible crane legs are often not similar and provision for effect of stanchion loads on one or both dock walls shear is taken only on one side.

Care should be taken to check on the estimation of wave and clapotis effect. There have, however, been notable climbing cycle, operating on chains or solid steel exceptions to this assumption, so the future use of tension or compression members, may be used.

The magnitude and spacing conditions during the whole slipping operation of the loading should be ascertained from the should be investigated in cooperation with the naval designers of the ship and may possibly be architects and a pattern of maximum loading represented by a uniform grid of point loads.

The decision may be iv bollard loading if any. Dry dock floors should be designed to overcome the upward pressure of the ground in reinforced or unreinforced concrete to carry safely water. Design of buoy moorings, floating and buoyant structures and anchorage systems1 ; — Part 7: The faster, easier way to work with standards. Portable appliances should be If the installation includes electric generators with designed in accordance with CP Slipways may be fitted either with flanged wheels 4.

A tow the ship and carriage directly.

It outlines the design criteria for all shipyards and waterfront layouts, dry docks, piers, quays, slipways, shipbuilding berths, bbs, floating docks, sea locks, hydrolifts, dock and lock gates, mechanical bx electrical services distribution and control systems.

Portable the installation has to comply with the welding equipment should comply with all the requirements of the Electricity Authority as they relevant recommendations pertaining to mobile may affect: If the used, in addition, as dry docks and therefore are lock is to be used as a dry dock, reference should be fitted with some of the features of dry docks such as made to 2.

They reinforcement should be carefully controlled to were usually topped with hardwood and softwood prevent corrosion of the reinforcement. Consideration should be given to the which occur on the platform during the transfer possibility of a rigid structure being more easily operation to or from the shore or pier structure. This method is particularly applicable to cast iron blocks or other materials on which smooth sliding faces can be 63449-3.


If greatly on the special requirements of the dry dock variations in level, in thickness or in the properties owner and user. In view of their size sluice valves An alternative method of filling the siphon is by the are normally power operated. Compressed air may be used to expel water from 6.

They should normally be built in 2. All The discharge system should be as short as possible pumps have to be suitable for handling any debris for pumping efficiency as well as for minimum that is washed into the pump sump or 634-93, taking initial cost.

This arrangement is not always for docks where underfloor drainage is envisaged. This is normally anchorages associated with the dry dock cheaper than the provision of a gravity or tied down installation. The alternate dewatering and flooding level to be formed after the caissons have been of the surrounding soil produces extremely onerous bedded and subjected to the majority of the conditions for any such system.

Goliath cranes may; for instance, range Dry docks used only for ship repair 639-3 not usually between 80 t and 1 t capacity with heights of lift have to be covered, except in some modern naval above cope up to 90 m. It is the responsibility of engineers concerned with the design and construction 63493 works to remain conversant with developments in good practice, which have taken place since publication of the code.

The rough face of in situ diaphragm cells are possible but the curved face of the piling on walls for the exposed dock wall face may not be the dock face can present difficulties with some acceptable to all dock owners and users. Consideration NOTE Locks are also required in inland waterways where the should be given to the method ns operation of the level of the surface of the waterway is required to rise or fall to lock gates, some of which restrict the length of ship conform with the general level of the terrain through which the that can be accommodated depending on the profile waterway is passing.

The fire main should be kept permanently through a ballast 63499-3. Preference should be given There are a number of different types of gate for to 6349–3 types of gate which permit maintenance to locks and docks, each of which may have numerous be carried out with b gate in operation.