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首页> 外文会议>International Conference on Advances in Building Technology Vol.2, Dec 4-6, 2002, Hong Kong, China >INTUMESCENT FIRE PROTECTION COATING THICKNESS FOR SHALLOW FLOOR BEAMS
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INTUMESCENT FIRE PROTECTION COATING THICKNESS FOR SHALLOW FLOOR BEAMS

机译：浅底梁的直觉防火涂层厚度

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摘要

To design for fire protection required for universal beams and columns the British Standard provides a formula relating the protection thickness to section factors, thermal conductivity, fire resistance and limiting temperature. However, this formula does not apply to the shallow floor beams, which are almost totally contained within the concrete slab. This paper is to derive an alternative relationship for determining the thickness of intumescent fire protection coating required for shallow floor beams, using existing fire test data. The results clearly show that the required thickness of fire protection to the shallow floor beams is thinner than to the regular steel beams. The formula derived can be used for quick, simple design calculation for the required thickness of fire protection. For safety reason in design there should be a safety factor used in conjunction with the formula. The analysis based on fire test data is supplemented with calculations based on beam temperature obtained from heat transfer models.
机译：为了设计通用梁和柱所需的防火设计，英国标准提供了一个公式，将防护厚度与截面系数，导热系数，防火性和极限温度联系起来。但是，该公式不适用于几乎全部包含在混凝土板中的浅底梁。本文将利用现有的防火测试数据，得出一种确定浅地板梁所需的膨胀型防火涂层厚度的替代关系。结果清楚地表明，浅底梁所需的防火厚度比常规钢梁要薄。得出的公式可用于快速，简单的设计计算，以计算所需的防火厚度。出于设计安全的考虑，应结合公式使用安全系数。基于防火测试数据的分析辅以基于从传热模型获得的射束温度的计算。

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