基于现行规范的公共建筑内走道排烟设计探讨

Discussion on Design of Smoke Exhaust System in Aisle of Public Buildings based on Current Fire Code

我国国家标准《建筑防烟排烟系统技术标准》(GB51251-2017)已于2018年8月1日实施。本文针对高层公共建筑内走道排烟系统的设计,对比了相关的新、旧规范,结合国外相关规范对新规范的一些争议内容进行了分析。此外,还通过实例计算,对新规范应用中存在的一些问题进行了探讨。

The Technical Standard for Smoke Management Systems in Buildings(GB51251-2017)of China has been implemented.This paper compares the relevant regulations of the code with the old one on the smoke exhaust system in the aisle of high-rise public buildings,and analyses some controversial contents of the new code in combination with relevant foreign fire code.Besides,some problems existing in the application of the new fire code are discussed based on the calculation of examples.