QUALITY LIFE STARTS WITH WARMTH
—— SELECTED HVAC SYSTEMS ——
Information Details
Fireproof roller shutter or smoke curtain, which one do you choose, architect?
Release time:
2021-07-07 10:25
However, side-rolled and irregular roller shutters are now generally not allowed in fire safety for projects, see "Public Fire Safety Document [2016] No. 113":
However, since the introduction of the "Technical Standards for Smoke Control and Exhaust in Buildings" (hereinafter referred to as the "New Smoke Regulations"), a new issue has arisen for the HVAC profession (the previous article did not address this issue), which is that the fire separation is set at the side of the commercial space. So how should the smoke curtain between the atrium and the corridor be set, and how high should it be?
Previously, national standards did not use the smoke model calculation method for smoke exhaust volume during a fire, so no one paid attention to it. Even though there were relevant calculation methods in the technical regulations in Shanghai at that time, very few people raised this issue. Another possibility is that from a design perspective, the atrium should inherently be a non-combustible area, and it is not very appropriate to forcefully apply standard algorithms, so no one mentioned it, and it was taken for granted in the design. A review teacher from a Shanghai project mentioned it back then, but ultimately there were no related issues during the fire acceptance inspection, and it was not pursued further.
Recently, an owner in the electromechanical field kept asking me this question, saying that a smoke curtain needs to be added to the commercial atrium and corridor side, and that the project has already been designed this way according to the chief engineer's requirements from the design institute. This caught my attention, and after carefully studying the "New Smoke Regulations", I found that indeed a smoke curtain needs to be added to meet the requirements of this standard. Below, we will explore why this is necessary using an actual project as a model.
Let's first look at the building information for this project:
Building information: commercial mall, one basement level (parking), four above-ground levels (commercial). The commercial atrium extends from the first floor to the roof, protruding above the roof. The building height is 23.98m, with a first-floor height of 5.8m, second and third floors at 5.5m each, and a fourth-floor height of 5.6m. The atrium protrudes above the roof, and the fire separation is set at the storefront entrance (this is the premise for the calculation model), using double-layer fire shutters or fire-resistant glass with sprinklers. For convenience in calculation, we take the atrium height as 24m clear height.
Either, courtyard, this, issue, project, building, fire protection, commercial, calculation, one
Previous Page
RELATED INFORMATION
FOLLOW US
Advisory Hotline
Address: Chenghuang Road, Guandu District, Kunming City (opposite Kunming Zhiwang Industrial Co., Ltd.)
All rights reserved©2024 Kunming Lifei HVAC Equipment Co., Ltd. Website Construction:300.cn Kunming Privacy Agreement