新型脚手架施工方案防火安全性
发布时间：2018-09-19 06:39
【摘要】：提出钢材踏板与竹枋踏板间隔布置的新型脚手架,针对传统脚手架、新型脚手架两种施工方案分别设计火灾场景,从温度和热流量两方面进行数值模拟分析。结果表明,传统脚手架施工方案中,距离着火层1.8m处的踏板在模拟时间400s内最高温度超过300℃,热流量超过16kW/m2;新型脚手架施工方案中,距离着火层3.6 m处的踏板在模拟时间400s内最高温度低于250℃,热流量低于5kW/m2。根据相关判据,传统脚手架被点燃的风险较高,而新型脚手架被点燃的风险较低。新型脚手架施工方案由于采用了不燃的钢材踏板作为阻隔,有效地降低了火灾在竖向的蔓延风险,较传统脚手架施工方案有更好的防火安全性。
[Abstract]:A new type of scaffold with steel pedal and bamboo fangfang pedal is put forward. According to the traditional scaffold and the new scaffold, the fire scene is designed separately, and the numerical simulation analysis is carried out from two aspects of temperature and heat flux. The results show that, in the traditional scaffold construction scheme, the maximum temperature and heat flux are over 300 鈩，
本文编号：2249339
[Abstract]:A new type of scaffold with steel pedal and bamboo fangfang pedal is put forward. According to the traditional scaffold and the new scaffold, the fire scene is designed separately, and the numerical simulation analysis is carried out from two aspects of temperature and heat flux. The results show that, in the traditional scaffold construction scheme, the maximum temperature and heat flux are over 300 鈩，
本文编号：2249339
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2249339.html
