高层建筑楼梯间正压送风方式的浅析

本文对建筑防火设计中正压我系统的系统设计和送风方式进行了详尽的阐述。文章中列举了封闭楼梯间和防烟楼梯间的送风量计算方法，并针对目前两种主要送风方式，即点送风与竖井送风方式的特点，从理论上分析点风方式的应用前景。作者们还对北京西苑饭店主楼和北京新世纪饭店主楼等高层和超高层的大型建筑进行两种不同方式的楼梯间正压送风试验，进行了点式送风方式和竖井送风方式的对比试验，精确地测量了点式送风方式下的楼梯间正奔

A Discussion on the Pressurized Ventilations Systems of Smoke Control in Staircases in High Rise Buildings

In this paper, a detailed discussion on the design of the pressurized ventilation systems for building fire prevention has been given. The calculating method of the ventilation amount for enclosed and smoke controlling staircases is presented. Analysis has been made of the characteristics of the two ventilation systems:local ventilation system and shaft ventilation system, along with emphasis of the application prospects of the local ventilation system. Experimental test of the two methods of pressurized ventilation have been conducted in Xiyuan Hotel and New Century Hotel in Beijing by the authors, and the comparison between the results has been made. Based on the analysis and tests of the two ventilation systems, we find that, the local ventilation system is economic and effective, and the application of this system to pressurized smode control ventilaation im high rise buildings is promising.