描述了ASHRAE的一个研究项目（RP-559），该项目旨在调查楼梯增压系统的各种超压释放方法的性能。该项目分为四个阶段:1）文献综述、2）现场试验、3）消防塔试验和4）计算机模型研究。所研究的超压泄压系统类型包括出口门泄压、气压阻尼器泄压和反馈控制，包括风扇旁通、变桨叶片风扇或变速风扇。进行了相关的ASHRAE研究项目（RP-660），以确定在各种火灾条件下防止楼梯门开口处烟气回流所需的临界风速。使用这两个项目的结果来评估楼梯加压系统的性能，并为其合适的应用提出建议。关键词:研究、性能、楼梯、加压楼梯、加压、烟雾、火灾、烟雾通风: ASHRAE Trans。1992年，第98卷，第1部分，论文编号3549（RP-559），66-72，图5，表1，参考文献。

Describes an ASHRAE research project (RP-559) to investigate the performance of various methods of overpressure relief for stair pressurisation systems. The project was in four phases - 1) a literature review, 2, field tests, 3) fire tower tests and 4) computer model studies. The types of overpressure relief systems investigated were exit door relief, barometric damper relief and feedback control, either with fan bypass, a variable pitch blade fan or a variable speed fan. A related ASHRAE research project (RP-660) was conducted to determine the critical air velocities required to prevent smoke backflow at a stair door opening for various fire conditions. Uses the results of these two projects to assess the performance of stair pressurisation systems, and makes recommendations for their suitable application.KEYWORDS: Research, performance, stairs, pressurised stairs, pressurization, smoke, fire, smoke ventilation