超高层建筑消防给水系统的可靠性分析

Reliability analysis on fire fighting water supply system for super high-rise building

在超高层建筑的消防系统设计中,供水方式的不同会对消防系统的可靠性造成影响。本文以兰州地区1栋230 m超高层商业办公综合体建筑为研究对象,通过建立合理的消防可靠性模型,对3种消防供水方案的可靠性进行计算、分析,并研究高位消防水箱、水箱分格设置及混联系统对消防可靠性的影响。结果表明:常高压为主的消防供水系统具有更高的可靠性;水箱分格也能够有效提高系统的可靠性;相同组件数量的条件下,串-并联系统的可靠性比并-串联系统高。该研究结果可为超高层消防供水方案比选提供一定的借鉴与参考。

In the design of the fire fighting system of super high-rise building,the different water supply methods will affect the reliability of the fire fighting system.A 230 m super high-rise complex building of commercial office in Lanzhou area is taken as the research object.By establishing a reasonable fire fighting reliability model,the reliability of the three fire fighting water supply schemes is calculated and analyzed.The influence on fire fighting reliability of high-level fire fighting water tank,water tank division setting and hybrid system is studied.The results show that:the fire fighting water supply system dominated by high pressure has higher reliability;the water tank division can also effectively improve the reliability of the system;under the condition of the same number of components,the reliability of the series-parallel system is higher than that of the parallel-series system.The research results can provide references for the comparison and selection of super high-rise fire fighting water supply schemes.