1、STD-BSI BS EN L305b-ENGL 2000 a Lb24bb7 0851325 83q W BRITISH STANDARD Inland navigation vessels - Stairs with inclination angles of 30“ to 1 600 mm stair breadth. 4.6 Safety of the treads 4.6.1 Steps and platforms shall have a non-slip surface. They shall be designed in such a way that they can be
2、easily cleaned and that water cannot accumulate. Slip resistance shall at least be in accordance with classification group R 10 conforming to prEN 12437 2:1996, annex A. 4.6.2 The front edge of steps shall be designed so that slipping and stumbling will be prevented. 4.6.3 Stairs shall be so designe
3、d as to prevent stumbling. If slits are required, their opening width shall not be more than 10 mm. 4.6.4 Coarnings shall be scalloped at platforms or adjacent landings in the walkway unless otherwise stipulated by existing provisions. 4.7 Hand rails I Railings Stairs with up to three steps shall ha
4、ve a handhold at one side. Stairs with more than three steps and widths fl 900 mm shall be provided with railings or hand rails at both sides. In the case of stairs outside the passenger areas and which have a breadth f, I 900 mm, one railing or hand rail needs to be provided. Railings of stairs sha
5、ll be designed according to EN 71 1. Hand rails shall be fixed at a height of 950 f 50 mm. In the passenger area, an additional hand rail for children shall be provided at a height of 650 f 50 mm. Hand rails or railings shall be continuous over the full length of the stairway. At their upper ends th
6、ey shall be suitably connected to structures or other continuous railings. At their lower ends hand rails and railings shall extend to the vertical line above the outermost point of the string. Hand rails shall be designed in such a way that their connectors do not hinder the continuous movement of
7、the hands. Their distance g from adjacent structures shall be at least 60 mm; their ends shall be arranged to prevent injuries and to avoid damage to clothes. If railings are requested for landings adjacent to stairs, these shall be executed according to EN 71 I. OBSI 06-2000 Page 10 EN 13056:2000 4
8、.8 Headroom The headroom kas well as the height above treads and platforms shall be at least 2 O00 mm, vertically. NOTE If the construction permits, the headroom kshouid be at least 2 100 mm. 4.9 Strength Stairs shall be permanently installed. Steps in the working area shall be designed for a single
9、 load of 13 kN each and in the passenger area for 2,O kN each. If the expected load of 5 kN/m2 leads to greater values, these shall be the basis for calculation The fixed stairs shall withstand a load which corresponds to 100 % of the total of the step loads without producing permanent deformation.
10、For treads and platforms adjacent to stairs, a load (imposed load) of 5 kN/d shall be assumed. 5 Manufacturers declaration The manufacturer has to declare that the stair is constructed conforming to this standard. 6 Designation Stairs shall be designed in conformance with the following details: a) D
11、escription “Sta ir“ b) Standard main number “EN 13056“ c) Inclination angle a in grade d) Stair breadth f, in mm e) Number of steps, n 9 Space between steps a in mm g) Operational area (A = Working area, F = Passenger area) EXAMPLE: Stair EN 13056 - 30 - 1 O00 - 14 - 170 - A OBSI 06-2000 STD-BSI BS
12、EN 1305b-ENGL 2000 II LbZibb9 0853337 55b W Page 11 EN 13056:2000 Annex A (informative) Relationship of the standard with EU Directives. The standard lays down requirements for stairs according to the following Directive: 82ff IUEEC “Council Directive of 4 October 1982 laying down technical requirem
13、ents for inland waterway vessels“. OBSI 06-2000 STD=BSI BS EN 1305b-ENGL 2000 O Lb24bb7 0851338 472 Page 12 EN 13056:2000 Bibliography prEN 790:1999“, types Inland navigation vessels - Stairs with inclination angles of 45“to 60“- Requirements, ) Standard in revision OBSI 06-2000 STD*BSI BS EN L305b-
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