BWBV0003251
Artikel 17
Internationaal Verdrag van Torremolinos voor de beveiliging van vissersvaartuigen, 1977
(1) The height above deck of hatchway coamings shall be as specified in Regulation 16(1). Where operating experience has shown justification and on the approval of the Administration the height of these coamings may be reduced, or the coamings omitted entirely, provided that the safety of vessels is not thereby impaired. In this case the hatchway openings shall be kept as small as practicable and the covers be permanently attached by hinges or equivalent means and be capable of being rapidly closed and battened down.
(2) For the purpose of strength calculations, it shall be assumed that hatchway covers are subjected to the weight of cargo intended to be carried on them or to the following static loads, whichever is the greater: (a) 10.0 kilonewtons per square metre for vessels of 24 metres in length;
(b) 17.0 kilonewtons per square metre for vessels of 100 metres in length and over. For intermediate lengths the load values shall be determined by linear interpolation. The Administration may reduce the loads to not less than 75 per cent of the above values for covers to hatchways situated on the superstructure deck in a position abaft a point located 0.25L from the forward perpendicular.
(a) 10.0 kilonewtons per square metre for vessels of 24 metres in length;
(b) 17.0 kilonewtons per square metre for vessels of 100 metres in length and over.
(3) Where covers are made of mild steel, the maximum stress calculated according to paragraph (2) multiplied by 4.25 shall not exceed the minimum ultimate strength of the material. Under these loads the deflections shall not be more than 0.0028 times the span.
(4) Covers made of materials other than mild steel shall be at least of equivalent strength to those made of mild steel, and their construction shall be of sufficient stiffness ensuring weathertightness under the loads specified in paragraph (2).
(5) Covers shall be fitted with clamping devices and gaskets sufficient to ensure weathertightness, or other equivalent arrangements to the satisfaction of the Administration.
(2) For the purpose of strength calculations, it shall be assumed that hatchway covers are subjected to the weight of cargo intended to be carried on them or to the following static loads, whichever is the greater: (a) 10.0 kilonewtons per square metre for vessels of 24 metres in length;
(b) 17.0 kilonewtons per square metre for vessels of 100 metres in length and over. For intermediate lengths the load values shall be determined by linear interpolation. The Administration may reduce the loads to not less than 75 per cent of the above values for covers to hatchways situated on the superstructure deck in a position abaft a point located 0.25L from the forward perpendicular.
(a) 10.0 kilonewtons per square metre for vessels of 24 metres in length;
(b) 17.0 kilonewtons per square metre for vessels of 100 metres in length and over.
(3) Where covers are made of mild steel, the maximum stress calculated according to paragraph (2) multiplied by 4.25 shall not exceed the minimum ultimate strength of the material. Under these loads the deflections shall not be more than 0.0028 times the span.
(4) Covers made of materials other than mild steel shall be at least of equivalent strength to those made of mild steel, and their construction shall be of sufficient stiffness ensuring weathertightness under the loads specified in paragraph (2).
(5) Covers shall be fitted with clamping devices and gaskets sufficient to ensure weathertightness, or other equivalent arrangements to the satisfaction of the Administration.
- Citeren als
- Art. 17
- Status
- Geldend recht
- Identificatie
- BWBV0003251
- Officiële bron
- wetten.overheid.nl