300米以下超高层建筑消防问题讨论

摘要

This paper briefly introduced several typical water supply methods of the fire prevention system of super high-rise buildings below 300 m.Based on the key links of the systems,the water supply safety of each system was calculated and discussed in detail.The prejudice to the safety of the system with direct in series connection of pumps was corrected.Meanwhile,the authors put forward some suggestions for the fire protection design of the super high-rise buildings.Based on the new Fire Regulations,suggestions were made to the partition of the super high-rise buildings and to the revision of the dynamic pressure at the mouth of the most unfavourable fire hydrant.The relationship between the fire main equipment and the system pressure was further discussed,and the selection requirements were suggested.%简要介绍了300 m以下超高层建筑消防系统的几种典型供水方式;立足于系统关键环节,对各系统的供水安全性作详细计算和探讨;纠正了常规认识中对水泵直接串联系统安全性的偏见;同时对超高层建筑群的消防设计提出建议;结合新版消防规范,对超高层建筑消防分区提出划分建议;对最不利消火栓栓口动压提出修改建议;对消防主材与系统压力的关系做进一步探讨,提出选型要求.