共查询到19条相似文献,搜索用时 62 毫秒
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喷水保护单片钢化玻璃作为防火分隔的有效性实验研究 总被引:1,自引:0,他引:1
为了研究喷水保护单片钢化玻璃作为防火分隔的有效性,针对建筑常用的12mm厚单片钢化玻璃,利用木垛火开展了实体建筑模拟火灾实验。实验结果表明,在喷水保护作用下,12mm厚单片钢化玻璃能够起到有效的防火分隔作用。 相似文献
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李悦 《消防技术与产品信息》2013,(8):46-48
从下垂型和吊顶型喷头不同的实验和检验方式及其安装要求,阐述了两种喷头不能混淆使用的原因以及混淆使用可能造成的危害,以引导正确安装使用两种喷头,确保消防安全。 相似文献
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随着高层住宅的兴起和封闭阳台的采用,窗用玻璃的选择已成为值得引起重视的新课题。 1983年10月美国一名风力工程师和玻璃幕墙权威在一次会议上把玻璃的损坏归结为5种因素:1,风力括起的碎片破坏;2,风的压力;3,玻璃支承系统平面变形;4,其中第2项是设计计算的主要依据。现在,美国关于玻璃在风荷载下受到破坏的预测方法有三种:1,经验方法;2,最大应力理论;3,破碎理论。匹兹堡平板玻璃公司(简称PPG)应用上述方法设计出一种图表,己被美国现行法规所采用(见图1,表1)。 相似文献
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张扬 《消防技术与产品信息》2014,(3)
基于ISO 9705标准火灾实验室,通过FDS设置额定的火源功率以及起火点,对比普通下垂型喷头与边墙型喷头的灭火效果、热释放速率、经济效益,综合分析得出虽然边墙型喷头有着更好的经济效益,但是就灭火安全来说普通下垂型喷头优于边墙型喷头,边墙型喷头替换普通下垂型喷头一定要谨慎。 相似文献
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在方兴未艾的住宅装修热中,常见有将居室窗户和封闭阳台玻璃选用兰色玻璃或茶色玻璃的现象,甚至一些新建住宅小区在销售广告上也大加宣扬。其利弊我认为是值得探讨的, 随着人民生活的提高,近几年来住宅装饰已成为当今社会的热门话题之一,大有不搞住宅装饰会被视为“跟不上时代”的“落伍家庭”之感,于是装饰中追新潮、求高档、比阔气者不乏其人。在这种情况下,一哄而起,大量采用铝合金外框、镶嵌吸热玻璃(曾流行茶色的,现流行“兰宝石”、沿海最新方兴“绿宝石”)作外窗,究竟是使用功能的必须,还是装 相似文献
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铝窗及玻璃幕墙是近年内广泛采用的建筑材料及建筑装饰构件,在建造过程中存在构造措施简单,传力不合理及材质不合格等问题,造成了很多质量隐患,从设计上对上述问题进行研究,结合设计规范的要求,从材料强度。构造和隔热,隔音性方面进行阐述,进而提出了一些具有适用价值的建议。 相似文献
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Full-scale fire tests on wired and tempered glazing in steel and aluminum frames are described. These assemblies achieved fire resistance ratings when exposed to a standard fire of 45 min to 2 h. The maximum radiant heat flux transmitted through the glass was reduced by more than 90%.
Reference: J. K. Richardson and I. Oleskiewicz, Fire Tests on Window Assemblies Protected by Automatic Sprinklers,Fire Technology, Vol. 23, No. 2, May 1987, pp. 115–132.This paper is a contribution from the Institute for Research in Construction, National Research Council of Canada. 相似文献
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Haukur Ingason 《Fire Technology》1993,29(4):317-331
The response of sprinklers mounted in a paint spray booth is usually influenced by paint covering the heat-sensitive element. To avoid this problem, sprinklers are often covered to prevent the paint from accumulating on the heat-sensitive element. The influence of various numbers of paint layers and different types of covers on the response time of two different types of glass bulb sprinkler heads has been investigated. Both wind-tunnel tests and large-scale fire tests were performed in the test series.It was found that covers delayed the activation of the sprinklers considerably, though a faster response was obtained with a quick response sprinkler than with a standard response sprinkler. It was found that the accumulated paint on the heat-sensitive element also affected the response time, but not nearly as much as the covers. It was also found that a paint layer covering both the glass bulb and the frame acted as a glue; the consequence was that the spray pattern of the sprinkler was considerably affected. 相似文献