小艇.船体结构和尺寸.第5部分:单体船体的设计压力 设计应力 尺寸测定

[中文适用范围]： 本文件规定了船体长度（LH）或载重线长度（见注 1）不超过 24 m 的单体小型船舶尺寸确定的尺寸、设计局部压力、机械性能和设计应力。 根据 ISO 12217 评估稳定性、干舷和浮力时，它考虑了船舶的所有假定为水密或风雨密的部分。 注 1：载重线长度在 IMO“国际载重线公约 1966/2005”中定义，它对于有悬垂的飞行器，可以大于 LH。 这一长度也将 24 m 设置为多个 IMO 公约的下限。 本文件的主要核心确定了单体船的局部设计压力和应力，并详细介绍了从这些压力和应力导出的可能的尺寸方法，适用于单体船和多体船（参见注 2）。 评估过程需要在相关情况下应用附件。 本文件适用于完好无损的以下两种类型的小型船只： ——休闲船只，包括休闲包船； ——小型商用船只和工作船，参见第 12 条和附件 J。 它不适用于专为专业竞赛设计的竞赛船只。 注 2：多体船的局部压力和应力在 ISO 12215-7 中给出。 本文件适用于支撑窗户、舷窗、舱口、死灯和门的结构。 对于船舶的完整尺寸，本文件旨在与舵的 ISO 12215-8、附件的 ISO 12215-9 以及钻机负载和钻机附件的 ISO 12215-10 一起使用。 本文件涵盖由以下材料制成的小型飞船： ——纤维增强塑料，单层或夹层结构； ——铝合金或钢合金； ——胶合木或胶合板（单层或夹层），不包括传统木结构； ——用于船体长度小于 6 m 的船舶的非增强塑料（见附录 D）。 在本文件中，除非另有说明，尺寸单位为 (m)，面积单位为 (m2)，质量单位为 (kg)，力单位为 (N)，力矩单位为 (Nm)，压力单位为 kN/m2 (1 kN/m2 = 1 kPa），应力和弹性模量以 N/mm2 为单位（1 N/mm2 = 1 Mpa）。 Max(a;b;c)表示要求的值为a、b、c中的最大值； min(d;e;f)表示要求的值为d、e、f中的最小值。  [外文原描述]： This document defines the dimensions, design local pressures, mechanical properties and design stresses for the scantlings determination of monohull small craft with a hull length (LH) or a load line length (see NOTE 1) of up to 24 m. It considers all parts of the craft that are assumed to be watertight or weathertight when assessing stability, freeboard and buoyancy in accordance with ISO 12217. NOTE 1 The load line length is defined in the IMO "International Load Lines Convention 1966/2005", it can be larger than LH for craft with overhangs. This length also sets up at 24 m the lower limit of several IMO conventions. The main core of this document determines the local design pressures and stresses for monohulls and details the possible scantlings methods derived from these pressures and stresses, both for monohulls and multihulls (see NOTE 2). The assessment process requires, where relevant, the application of Annexes. This document is applicable to small craft, in intact condition, of the two following types: — recreational craft, including recreational charter vessels; — small commercial craft and workboats, see Clause 12 and Annex J. It is not applicable to racing craft designed only for professional racing. NOTE 2 Local pressures and stresses for multihulls are given in ISO 12215-7. This document is applicable to the structures supporting windows, portlights, hatches, deadlights, and doors. For the complete scantlings of the craft, this document is intended to be used with ISO 12215-8 for rudders, ISO 12215-9 for appendages and ISO 12215-10 for rig loads and rig attachments. This document covers small craft built from the following materials: — fibre-reinforced plastics, either in single skin or sandwich construction; — aluminium or steel alloys; — glued wood or plywood (single skin or sandwich), excluding traditional wood construction; — non-reinforced plastics for craft with a hull length less than 6 m (see Annex D). Throughout this document, unless otherwise specified, dimensions are in (m), areas in (m2), masses in (kg), forces in (N), moments in (N.m), pressures in kN/m2 (1 kN/m2 = 1 kPa), stresses and elastic modulus in N/mm2 (1 N/mm2 = 1 Mpa). Max(a;b;c) means that the required value is the maximum of a, b, and c; and min(d;e;f) means that the required value is the minimum of d, e, and f.