请选择 进入手机版 | 继续访问电脑版
首页建筑建材类标准规范国家标准BS 476-20(1987) 建筑构件耐火的测定方法(一般原理)
建筑资料

文档

40

关注

0

好评

0
PDF

BS 476-20(1987) 建筑构件耐火的测定方法(一般原理)

阅读 916 下载 0 大小 1.79M 总页数 44 页 2024-01-27 分享
价格: 2 积分
下载文档
/ 44
全屏查看
BS 476-20(1987) 建筑构件耐火的测定方法(一般原理)
还有 44 页未读 ,您可以 继续阅读 或 下载文档
文档介绍

以下内容来自OCR识别,不保证本文准确性。完整文件请预览PDF

BS476: Part 20: 1987

British Standard

Fire tests on building materials and structures

Part 20. Method for determination of the fire resistance of elements of construction (general principles)

Essais au feu des materiaux et structures du batiment

Partie 20. Methode de determination de la resistance au feu des elements de construction (principes generaux)

Brandschutztechnische Prufungen an Baustoffen und Bauten

Teil 20. Verfahren zur Bestimmung des Feuerwiderstandes von Bauteilen (Allgemeines)

British Standards Institution

BS476: Part 20: 1987

Foreword

This Part of BS 476 has been prepared under the direction of the Fire Standards Committee and describes the general procedures and equipment required to determine the fire resistance of elements of construction. This Part should be read together with BS 476 Parts 21, 22, and 23 as appropriate which describe the detailed procedure for the testing of individual elements of construction.

The differential pressure between the furnace chamber and the laboratory has been changed slightly with respect to Parts 20 to 23 have been prepared in such a way that the magnitude, the time of application and the measuring technique. The specific requirements for the testing of these groups are described in Parts 21 to 23 respectively.

For the purposes of these Parts, elements of construction have been categorized into three main groups:

(a) loadbearing elements that have a fire resistance;

(b) non-loadbearing elements that have a fire resistance;

(c) elements that make a contribution to the fire resistance of a structure.

The revision of BS 476 Part 8 has been prepared in order to improve repeatability and reproducibility of the results obtained by more closely defining the operating procedures and the equipment used. The main changes relate to improvements in the techniques for measuring temperature, pressure, and load distribution.

Attention is drawn to the Health and Safety at Work etc. Act 1974, and the need to ensure that the method of test described in this standard is carried out under suitable environmental conditions to provide adequate protection to personnel against the risk of fire and/or inhalation of...

Caution: The mechanical sawing of asbestos cement components attracts the provision of the Asbestos Regulations 1969. Adequate methods exist to control levels of dust during such operations and these are detailed in the Control and Safety Guides issued by the Asbestos. Compliance with a British Standard does not of itself confer immunity from legal obligations.

1、本文档共计 44 页,下载后文档不带水印,支持完整阅读内容或进行编辑。
2、当您付费下载文档后,您只拥有了使用权限,并不意味着购买了版权,文档只能用于自身使用,不得用于其他商业用途(如 [转卖]进行直接盈利或[编辑后售卖]进行间接盈利)。
3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。
4、如文档内容存在违规,或者侵犯商业秘密、侵犯著作权等,请点击“违规举报”。
文档评分
    请如实的对该文档进行评分
  • 0
发表评论