主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (12): 1662-1667.

• • 上一篇    下一篇

喷淋保护有效及失效情况下玻璃幕墙层间防火对比试验研究

彭磊1，杨开起2，胡燕翔2   

  1. 1. 应急管理部天津消防研究所，天津300381; 2. 平安不动产有限公司济南分公司，山东济南250000
  • 出版日期:2020-12-15 发布日期:2020-12-15
  • 作者简介:彭磊（1980-），男，应急管理部天津消防研究所消防规范研究室副研究员，博士，主要从事建筑幕墙防火技术、装配式钢结构和木结构建筑防火等研究，天津市南开区卫津南路110 号，300381。

Experimental study on fire protection of perimeter fire barrier of glass curtain walls with fire suppression both activated and inactivated

PENG Lei1, YANG Kai-qi2, HU Yan-xiang2   

  1. 1. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China; 2. Ping An Real Estate(Jinan)Co., Ltd., Shandong Jinan 250000, China
  • Online:2020-12-15 Published:2020-12-15

摘要：

采用装配式钢结构框架搭建6 层幕墙防火测试平台，考虑喷淋保护有效及失效等多种工况，对玻璃幕墙层间防火系统开展实体火灾试验研究。结果表明，在未安装喷淋系统喷淋失效试验工况中，着火房间的幕墙外侧中空夹胶玻璃在20～23 min陆续破裂脱落，着火上层幕墙玻璃外侧下沿的最高温度约700 ℃，高温导致上层房间幕墙外侧的双层夹胶半钢化玻璃出现裂缝，但未出现整体破裂或脱落。着火上层室内未出现明显过火及高温烟气窜入，说明层间防火构造可有效防止火灾沿幕墙与楼板的结合处向上蔓延。在距幕墙水平距离0.9 m 位置设下垂型喷头，在自动喷水灭火系统自动或手动开启的2 种工况条件下，均可对幕墙周围的火源进行有效抑制，并对幕墙玻璃和铝合金框架提供保护。着火房间内的幕墙玻璃未完全破裂脱落，火势不会蔓延至着火房间上层。

关键词: 玻璃幕墙, 层间防火系统, 防火封堵, 喷水灭火系统

Abstract:

A 6- story curtain wall fire test platform was built with fabricated steel structure frame. Full- scale experimental studies were carried out to investigate the performance of perimeter fire barrier of glass curtain wall exposed to real- scale fires with fire suppression system both activated and inactivated.Test results showed that when the fire suppression system was uninstalled (or inactivated), the outer laminated glazing panels of the fire room were broken at about 20~23 min, and the temperature at the bottom level of the outer layer of glazing in the upper room reached at about 700 ℃ . The high temperature resulted in outer layer of vision panels of the upper room had some cracks, but the panels did not break and fall out. No flame and hot smoke entered the upper room, which indicated that the perimeter fire barrier between facade and floor could successfully prevent fire spread along the curtain wall and through the gaps. A pendent sprinkler was set 0.9 m away from the curtain wall, for the test scenarios when automatic sprinkler system was activated automatically or manually, the fire near the facade in the burning room was successfully suppressed, and the glazing and aluminum frames were protected. The glazing within the fire room did not break completely or fall out, and the fire did not spread to the upper rooms through the floor perimeter.

Key words: glass curtain wall, interlayer fire protection system;perimeter fire barrier, sprinkler system